:root{--bg:#f7f3ee;--panel:#fffdf9;--ink:#2f2925;--muted:#81776f;--line:#e8ded4;--accent:#6c8b6b;--accent2:#dfe9dc;--user-bg:#eaf0fb;--shadow:0 10px 28px rgba(72,57,45,.08)}
:root[data-theme="dark"]{color-scheme:dark;--bg:#171614;--panel:#211f1c;--ink:#eee8e0;--muted:#aaa097;--line:#3a352f;--accent:#89a589;--accent2:#2d3a2d;--user-bg:#252d3a;--shadow:0 12px 30px rgba(0,0,0,.28)}
:root[data-theme="light"]{color-scheme:light}
:root[data-theme="dark"] .sidebar{background:#1c1a18}
:root[data-theme="dark"] .topbar{background:rgba(23,22,20,.92)}
:root[data-theme="dark"] .search{background:#292622}
:root[data-theme="dark"] .user-filter{background:rgba(33,31,28,.82)}
:root[data-theme="dark"] .filter-chip,:root[data-theme="dark"] .tag{border-color:#4b6248;background:#263124;color:#bfd0ba}
:root[data-theme="dark"] .tag.user,:root[data-theme="dark"] .filter-chip{border-color:#485876;background:var(--user-bg);color:#b9c7e5}
:root[data-theme="dark"] .media-grid,:root[data-theme="dark"] .media-grid .media-item,:root[data-theme="dark"] .media-grid img,:root[data-theme="dark"] .media-fallback,:root[data-theme="dark"] .feature-media-item img{background:#191817}
:root[data-theme="dark"] .site-link{background:rgba(33,31,28,.72)}
:root[data-theme="dark"] .lang-switch .lang-sep{color:#625c55}
:root[data-theme="dark"] .about-note{color:#d8e4d5}
:root[data-theme="dark"] .surprise-box .post{border-color:#40513d}
:root[data-theme="dark"] .homepage-feature{background:linear-gradient(145deg,#211f1c 0%,#1c261d 100%);border-color:#40513d}
:root[data-theme="dark"] .feature-kicker{border-color:#4b6248;background:#263124;color:#bfd0ba}
:root[data-theme="dark"] .feature-text{color:#c7beb6}
:root[data-theme="dark"] .sidebar-backdrop{background:rgba(0,0,0,.52)}
body,.sidebar,.topbar,.post,.homepage-feature,.about-card,.user-filter{transition:background-color .18s ease,color .18s ease,border-color .18s ease}
.theme-toggle{display:inline-flex;align-items:center;justify-content:center;flex:0 0 42px;width:42px;padding:9px 0;font-size:1rem;line-height:1}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,"Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;line-height:1.65}button,input,select{font:inherit;color:inherit}button{cursor:pointer}.app{display:grid;grid-template-columns:280px minmax(0,1fr);min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;overflow:auto;padding:24px 18px;border-right:1px solid var(--line);background:#f2ece5}.brand{font-size:1.25rem;font-weight:800}.sub{font-size:.82rem;color:var(--muted);margin:2px 0 18px}.nav-title{font-size:.75rem;letter-spacing:.08em;color:var(--muted);margin:22px 8px 8px;text-transform:uppercase}.nav-list{display:flex;flex-direction:column;gap:4px}.nav-btn{display:flex;align-items:center;justify-content:space-between;width:100%;border:0;border-radius:10px;padding:8px 10px;background:transparent;text-align:left}.nav-btn:hover,.nav-btn.active{background:var(--panel);box-shadow:0 1px 0 rgba(0,0,0,.03)}.count{font-size:.75rem;color:var(--muted)}.main{min-width:0}.topbar{position:sticky;top:0;z-index:20;display:flex;gap:10px;align-items:center;padding:14px 22px;border-bottom:1px solid var(--line);background:rgba(247,243,238,.92);backdrop-filter:blur(12px)}.search{flex:1;min-width:120px;border:1px solid var(--line);border-radius:12px;padding:10px 13px;background:white}.btn{border:1px solid var(--line);border-radius:11px;padding:9px 13px;background:var(--panel);box-shadow:0 1px 0 rgba(0,0,0,.03)}.btn:hover{filter:brightness(.98)}
.content{max-width:1180px;margin:0 auto;padding:30px 28px 90px}.headline{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:12px}.headline h1{font-family:Georgia,"Noto Serif TC",serif;font-size:1.72rem;margin:0}.headline p{color:var(--muted);margin:0}.user-filter{display:flex;flex-wrap:wrap;gap:7px;align-items:center;padding:10px 12px;border:1px solid var(--line);border-radius:13px;background:rgba(255,253,249,.8);margin-bottom:20px}.filter-chip{display:inline-flex;align-items:center;gap:5px;border:1px solid #b8c6e2;background:var(--user-bg);border-radius:999px;padding:4px 9px;font-size:.8rem}.filter-actions{display:flex;gap:6px;margin-left:auto}.post{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:24px;margin:0 0 22px;box-shadow:var(--shadow)}.post-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.date{font-weight:700}.post-user-tags{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0 0}.post-text{white-space:pre-wrap;word-break:break-word;margin:15px 0 18px;font-size:1.04rem}
/* 圖片優先大圖顯示：1 張維持大圖、2 張兩欄、寬螢幕 3 張以上最多三欄。原始檔本身不縮圖/不轉碼。 */
.media-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:16px 0}.media-grid.count-1{grid-template-columns:minmax(0,1fr)}.media-item{display:flex;align-items:flex-start;justify-content:center;min-width:0}.media-grid img,.media-grid video{display:block;width:100%;border-radius:12px;background:#181818}.media-grid img{height:auto;object-fit:contain;background:#f1ece6;cursor:zoom-in}.media-grid video{height:auto;max-height:85vh;object-fit:contain;min-height:180px}.media-grid.count-1 .media-item{max-width:1040px;margin-left:auto;margin-right:auto}.media-grid.count-1 img,.media-grid.count-1 video{width:100%}.media-counter{display:none}.media-fallback{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:180px;padding:18px;border:1px dashed var(--line);border-radius:12px;background:#f7f2ec;text-align:center}.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}.tag{display:inline-flex;align-items:center;border:1px solid #c9d8c4;background:#edf4ea;border-radius:999px;padding:3px 9px;font-size:.78rem}.tag.user{border-color:#b8c6e2;background:var(--user-bg);color:#435678}.post-tools{display:flex;flex-wrap:wrap;gap:7px;align-items:center;margin-top:14px;padding-top:12px;border-top:1px solid var(--line)}.source-link{text-decoration:none}.empty{padding:48px 20px;text-align:center;color:var(--muted)}.loadmore{display:block;margin:24px auto}.hidden{display:none!important}.lightbox{position:fixed;inset:0;z-index:200;background:rgba(0,0,0,.92);display:flex;align-items:center;justify-content:center;padding:16px;cursor:zoom-out}.lightbox img{max-width:98vw;max-height:96vh;width:auto;height:auto;object-fit:contain}.mobile-menu{display:none}.footer-note{text-align:center;color:var(--muted);font-size:.78rem;padding:12px 0 0}.footer-note a{color:inherit}
.site-links{margin:0 0 18px}.site-link{display:block;text-decoration:none;border:1px solid var(--line);border-radius:11px;padding:9px 10px;background:rgba(255,253,249,.72);color:var(--ink)}.site-link:hover{background:var(--panel)}
.lang-switch{display:inline-flex;align-items:center;flex:0 0 auto;border:1px solid var(--line);border-radius:11px;background:var(--panel);overflow:hidden}.lang-switch button{border:0;background:transparent;padding:8px 7px;color:var(--muted);font-size:.78rem;line-height:1}.lang-switch button.active{background:var(--accent2);color:var(--ink);font-weight:800}.lang-switch .lang-sep{color:#cfc6bd;font-size:.72rem;user-select:none}.about-tools{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.sidebar-close,.sidebar-backdrop{display:none}.lightbox-close{position:fixed;top:max(12px,env(safe-area-inset-top));right:max(12px,env(safe-area-inset-right));z-index:203;width:42px;height:42px;border:1px solid rgba(255,255,255,.26);border-radius:999px;background:rgba(20,20,20,.72);color:#fff;font-size:28px;line-height:1;display:flex;align-items:center;justify-content:center;padding:0;cursor:pointer;backdrop-filter:blur(8px)}.lightbox-close-hint{display:none;position:fixed;left:50%;top:max(18px,env(safe-area-inset-top));transform:translateX(-50%);z-index:202;color:rgba(255,255,255,.72);font-size:.75rem;pointer-events:none;white-space:nowrap}.lightbox{overscroll-behavior:contain;touch-action:pinch-zoom}
.about-wrap{max-width:860px;margin:0 auto;padding:46px 24px 80px}.about-top{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:24px}.about-back{text-decoration:none}.about-card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:30px 32px;box-shadow:var(--shadow)}.about-card h1{font-family:Georgia,"Noto Serif TC",serif;font-size:2rem;margin:0 0 8px}.about-card h2{font-family:Georgia,"Noto Serif TC",serif;font-size:1.2rem;margin:30px 0 8px}.about-card p{margin:8px 0 0}.about-lead{color:var(--muted);margin-bottom:22px!important}.about-note{margin-top:26px;padding:14px 16px;border-radius:12px;background:var(--accent2);font-size:.9rem}.about-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}.about-actions a{text-decoration:none}
.surprise-box{margin:0 0 22px}.surprise-title{font-family:Georgia,"Noto Serif TC",serif;font-size:1.28rem;font-weight:700;margin:0 0 10px 2px}.surprise-box .post{margin-bottom:0;border-color:#d8e1d3}
.homepage-feature{background:linear-gradient(145deg,#fffdf9 0%,#f2f7ef 100%);border:1px solid #d4dfcf;border-radius:18px;padding:24px;margin:0 0 22px;box-shadow:var(--shadow)}.feature-kicker{display:inline-flex;align-items:center;border:1px solid #c9d8c4;background:#edf4ea;border-radius:999px;padding:4px 10px;font-size:.8rem;font-weight:700;color:#536d52;margin-bottom:10px}.feature-title{font-family:Georgia,"Noto Serif TC",serif;font-size:1.45rem;line-height:1.35;margin:0}.feature-text{white-space:pre-wrap;word-break:break-word;color:#5f5751;margin:8px 0 0}.feature-media-grid{display:grid;gap:12px;margin:18px 0 0}.feature-media-grid.count-1{grid-template-columns:minmax(0,1fr)}.feature-media-grid.count-2{grid-template-columns:repeat(2,minmax(0,1fr))}.feature-media-grid.count-many{grid-template-columns:repeat(3,minmax(0,1fr))}.feature-media-item{display:flex;justify-content:center;min-width:0}.feature-media-item img{display:block;width:100%;max-width:360px;height:auto;object-fit:contain;border-radius:12px;background:#f1ece6;cursor:zoom-in}.feature-media-grid.count-1 .feature-media-item{max-width:1040px;margin-left:auto;margin-right:auto}.feature-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.feature-actions a{text-decoration:none}
@media(min-width:1000px){.media-grid.count-many{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:850px){.app{grid-template-columns:1fr}.sidebar{position:fixed;z-index:50;left:0;top:0;bottom:0;width:280px;transform:translateX(-100%);transition:.2s;padding-top:56px;box-shadow:14px 0 34px rgba(40,32,27,.18)}.sidebar.open{transform:none}.sidebar-close{display:flex;position:absolute;top:10px;right:10px;z-index:2;width:38px;height:38px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:999px;background:var(--panel);font-size:25px;line-height:1;padding:0}.sidebar-backdrop{display:block;position:fixed;inset:0;z-index:45;background:rgba(40,32,27,.34);opacity:0;pointer-events:none;transition:opacity .2s}.sidebar-backdrop.open{opacity:1;pointer-events:auto}.mobile-menu{display:inline-block}.topbar{padding:10px;gap:7px;flex-wrap:wrap}.search{flex:1 1 150px}.theme-toggle{flex-basis:38px;width:38px;padding:8px 0}.lang-switch button{padding:8px 6px}.content{padding:20px 10px 70px}.user-filter{align-items:flex-start}.filter-actions{width:100%;margin-left:0}.post{padding:14px;border-radius:14px}.media-grid{grid-template-columns:1fr;gap:10px}.media-grid.count-1 .media-item{max-width:none}.media-grid video{max-height:none;min-height:120px}.homepage-feature{padding:14px;border-radius:14px}.feature-media-grid,.feature-media-grid.count-1,.feature-media-grid.count-2,.feature-media-grid.count-many{grid-template-columns:1fr;gap:10px}.feature-media-grid.count-1 .feature-media-item{max-width:none}.about-wrap{padding:24px 12px 60px}.about-card{padding:22px 18px;border-radius:14px}.about-top{align-items:flex-start}}
@media(max-width:850px) and (hover:none) and (pointer:coarse){.lightbox-close-hint{display:block}.media-grid{display:flex;grid-template-columns:none;gap:0;width:100%;aspect-ratio:3/4;overflow-x:auto;overflow-y:hidden;scroll-snap-type:x mandatory;overscroll-behavior-x:contain;border-radius:12px;background:#f1ece6;scrollbar-width:none;-webkit-overflow-scrolling:touch}.media-grid::-webkit-scrollbar{display:none}.media-grid .media-item,.media-grid>.media-fallback{flex:0 0 100%;width:100%;height:100%;max-width:none;margin:0;scroll-snap-align:start;scroll-snap-stop:always;align-items:center;justify-content:center;background:#f1ece6}.media-grid img,.media-grid video{width:100%;height:100%;max-height:none;min-height:0;object-fit:contain;border-radius:0}.media-grid>.media-fallback{min-height:0;border:0;border-radius:0}.media-counter{display:block;margin:-8px 0 10px;text-align:center;color:var(--muted);font-size:.78rem;font-variant-numeric:tabular-nums}}
.image-preview-hint{
    margin:5px 0 0 !important;
    color:var(--muted);
    font-size:.78rem;
}

.lightbox-note{
    position:fixed;
    left:50%;
    bottom:14px;
    transform:translateX(-50%);
    z-index:201;
    color:rgba(255,255,255,.78);
    font-size:.78rem;
    line-height:1.4;
    text-align:center;
    background:rgba(0,0,0,.35);
    padding:4px 9px;
    border-radius:999px;
    pointer-events:none;

    white-space:nowrap;
}

/* v6: desktop keeps the fixed second toolbar; mobile moves the compact toggle into topbar row 2. */
:root{--topbar-height:68px;--sourcebar-height:0px}
.source-bar{
    position:fixed;
    left:280px;
    right:0;
    top:var(--topbar-height);
    z-index:19;
    border-bottom:1px solid var(--line);
    background:rgba(247,243,238,.96);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
}
:root[data-theme="dark"] .source-bar{background:rgba(23,22,20,.96)}
.source-bar-inner{position:relative;max-width:1180px;margin:0 auto;padding:2px 28px}
.source-bar .user-filter{
    display:flex;
    flex-wrap:wrap;
    column-gap:7px;
    row-gap:3px;
    align-items:center;
    min-height:36px;
    margin:0;
    padding:0;
    border:0;
    border-radius:0;
    background:transparent;
}
.source-bar .filter-actions .btn{padding:5px 11px;line-height:1.25}
:root[data-theme="dark"] .source-bar .user-filter{background:transparent}
.source-bar-spacer{height:var(--sourcebar-height);min-height:0}
.user-filter-toggle{display:none}
@media(max-width:850px){
    /* Mobile: keep the source control inside topbar row 2 beside the theme button.
       The source panel itself floats below the topbar and consumes no reading height. */
    .topbar{row-gap:6px}
    .theme-toggle{flex:0 0 38px}
    .user-filter-toggle{
        display:flex;
        flex:1 1 170px;
        width:auto;
        min-width:0;
        min-height:38px;
        align-items:center;
        justify-content:space-between;
        gap:8px;
        padding:7px 11px;
    }
    .source-bar{
        left:0;
        height:0;
        min-height:0;
        border-bottom:0;
        background:transparent;
        backdrop-filter:none;
        -webkit-backdrop-filter:none;
        pointer-events:none;
    }
    :root[data-theme="dark"] .source-bar{background:transparent}
    .source-bar-inner{max-width:none;padding:0}
    .source-bar .filter-actions .btn{padding:8px 11px;line-height:1.4}
    .source-bar .user-filter{
        display:none;
        position:absolute;
        left:10px;
        right:10px;
        top:6px;
        max-height:min(58vh,420px);
        overflow:auto;
        align-items:flex-start;
        padding:11px;
        border:1px solid var(--line);
        border-radius:13px;
        background:var(--panel);
        box-shadow:var(--shadow);
        pointer-events:auto;
    }
    .source-bar .user-filter.mobile-open{display:flex}
    .source-bar .filter-actions{width:100%;margin-left:0}
    .source-bar-spacer{height:0!important}
}