:root {
            --primary: <?= get_option('theme_color', '#2563eb') ?>;
            --primary-light: #3b82f6;
            --primary-rgb: <?= $_primaryRgb ?>;
            --text: #1e293b; --text-light: #64748b; --text-lighter: #94a3b8;
            --bg: #f1f5f9; --card-bg: #fff; --border: #e2e8f0;
            --radius: 12px;
            --shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
            --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.08), 0 4px 6px -4px rgba(0,0,0,.04);
            --max-width: 1200px;
            --header-bg: rgba(255,255,255,.92);
            --code-bg: #f1f5f9;
        }
        [data-theme="dark"] {
            --text: #e2e8f0; --text-light: #94a3b8; --text-lighter: #64748b;
            --bg: #0f172a; --card-bg: #1e293b; --border: #334155;
            --shadow: 0 1px 3px rgba(0,0,0,.2), 0 1px 2px rgba(0,0,0,.15);
            --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.3), 0 4px 6px -4px rgba(0,0,0,.2);
            --header-bg: rgba(15,23,42,.92);
            --code-bg: #0f172a;
        }
        *{margin:0;padding:0;box-sizing:border-box}
        body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;color:var(--text);background:var(--bg);line-height:1.7;font-size:15px;-webkit-font-smoothing:antialiased}
        a{color:var(--primary);text-decoration:none;transition:color .2s}
        a:hover{color:var(--primary-light)}
        img{max-width:100%}

        .reading-progress{position:fixed;top:0;left:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--primary-light));z-index:9999;width:0;transition:width .1s}

        .site-header{background:var(--header-bg);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px)}
        .header-inner{max-width:var(--max-width);margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:64px}
        .site-logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;color:var(--text);letter-spacing:-.5px}
        .site-logo:hover{color:var(--primary)}
        .site-logo img{height:36px;width:auto}
        .header-right{display:flex;align-items:center;gap:4px}
        .site-nav{display:flex;align-items:center;gap:2px}
        .site-nav a{padding:8px 14px;color:var(--text-light);font-size:14px;font-weight:500;border-radius:8px;transition:all .2s;white-space:nowrap;display:inline-flex;align-items:center;gap:6px}
.site-nav a i{font-size:13px;opacity:.85}
        .site-nav a:hover,.site-nav a.active{color:var(--primary);background:rgba(var(--primary-rgb),.06)}
        .nav-search{display:flex;align-items:center;margin-left:12px}
        .nav-search form{display:flex;align-items:center;position:relative}
        .nav-search input{border:1px solid var(--border);border-radius:20px;padding:7px 36px 7px 16px;font-size:13px;width:170px;outline:none;transition:all .3s;background:var(--bg)}
        .nav-search input:focus{border-color:var(--primary);width:220px;background:var(--card-bg);box-shadow:0 0 0 3px rgba(var(--primary-rgb),.1)}
        .nav-search button{position:absolute;right:4px;top:50%;transform:translateY(-50%);background:none;border:none;color:var(--text-light);cursor:pointer;padding:4px 8px;font-size:13px;border-radius:50%;transition:color .2s}
        .nav-search button:hover{color:var(--primary)}
        .mobile-toggle{display:none;background:none;border:none;color:var(--text);cursor:pointer;padding:8px;border-radius:8px;
            align-items:center;justify-content:center}
        .mobile-toggle:hover{background:var(--bg)}

        /* 三条杠图标：点开后平滑变形成 X
           三条 span 竖排，间距靠 justify-content 撑开。
           激活时第 1 条下移、第 3 条上移，各转 45 度在中间交汇，
           中间那条直接缩没 —— 比直接换 fa-bars / fa-times 两个图标自然得多。 */
        .mobile-toggle-icon{width:20px;height:14px;display:flex;flex-direction:column;justify-content:space-between}
        .mobile-toggle-icon span{display:block;width:100%;height:2px;background:currentColor;border-radius:2px;
            transition:transform .3s cubic-bezier(.4,0,.2,1),opacity .18s ease;transform-origin:center}
        .mobile-toggle.active .mobile-toggle-icon span:nth-child(1){transform:translateY(6px) rotate(45deg)}
        .mobile-toggle.active .mobile-toggle-icon span:nth-child(2){opacity:0;transform:scaleX(0)}
        .mobile-toggle.active .mobile-toggle-icon span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
        /* ===== 移动端菜单：展开 / 收起动画 =====
           原来是用 display:none / block 切换的，display 不参与过渡，
           所以菜单是「啪」地一下冒出来。改成用 opacity + visibility + transform，
           这三样都能过渡，收放就顺了。

           分工：
             .mobile-menu       半透明黑色遮罩 → 淡入淡出
             .mobile-menu-inner 白色内容面板   → 从上往下滑入 + 淡入
             .mobile-menu-inner > * 里的一项项 → 再错开一点点淡入，有层次感 */
        .mobile-menu{position:fixed;top:64px;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);z-index:99;
            opacity:0;visibility:hidden;
            transition:opacity .3s ease,visibility .3s ease}
        .mobile-menu.show{opacity:1;visibility:visible}

        .mobile-menu-inner{background:var(--card-bg);padding:16px;max-height:70vh;overflow-y:auto;
            box-shadow:0 4px 20px rgba(0,0,0,.1);
            transform:translateY(-14px);opacity:0;
            transition:transform .32s cubic-bezier(.4,0,.2,1),opacity .26s ease}
        .mobile-menu.show .mobile-menu-inner{transform:translateY(0);opacity:1}

        /* 面板里的每一项再错开淡入：延迟按顺序递增，出现时是一层层落下来的 */
        .mobile-menu-inner > *{opacity:0;transform:translateY(8px);
            transition:opacity .22s ease,transform .22s ease}
        .mobile-menu.show .mobile-menu-inner > *{opacity:1;transform:translateY(0)}
        .mobile-menu.show .mobile-menu-inner > *:nth-child(1){transition-delay:.05s}
        .mobile-menu.show .mobile-menu-inner > *:nth-child(2){transition-delay:.08s}
        .mobile-menu.show .mobile-menu-inner > *:nth-child(3){transition-delay:.11s}
        .mobile-menu.show .mobile-menu-inner > *:nth-child(4){transition-delay:.14s}
        .mobile-menu.show .mobile-menu-inner > *:nth-child(5){transition-delay:.17s}
        .mobile-menu.show .mobile-menu-inner > *:nth-child(6){transition-delay:.20s}
        .mobile-menu.show .mobile-menu-inner > *:nth-child(7){transition-delay:.23s}
        .mobile-menu.show .mobile-menu-inner > *:nth-child(8){transition-delay:.26s}
        .mobile-menu.show .mobile-menu-inner > *:nth-child(n+9){transition-delay:.29s}
        /* 收起时不延迟，直接一起淡出，否则关个菜单要等半秒 */
        .mobile-menu:not(.show) .mobile-menu-inner > *{transition-delay:0s}
        .mobile-menu-inner a{display:block;padding:12px 16px;color:var(--text);font-size:15px;border-radius:8px;margin-bottom:2px}
        .mobile-menu-inner a:hover{background:var(--bg)}
        .mobile-menu-inner .search-box{padding:12px 0}
        .mobile-menu-inner .search-box form{display:flex;gap:8px}
        .mobile-menu-inner .search-box input{flex:1;border:1px solid var(--border);border-radius:8px;padding:10px 16px;font-size:14px;outline:none;background:var(--bg)}
        .mobile-menu-inner .search-box button{padding:10px 16px;background:var(--primary);color:#fff;border:none;border-radius:8px;font-size:14px;cursor:pointer}

        .site-main{max-width:var(--max-width);margin:0 auto;padding:32px 24px;display:grid;grid-template-columns:1fr 300px;gap:32px}
        .site-main.full-width{grid-template-columns:1fr;max-width:900px}

        .post-card{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;margin-bottom:24px;transition:all .3s ease}
        .post-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}
        .post-card-cover-wrap{overflow:hidden;position:relative}
        .post-card-cover{width:100%;height:240px;object-fit:cover;transition:transform .5s ease;display:block}
        .post-card:hover .post-card-cover{transform:scale(1.03)}
        .post-card-body{padding:24px}
        .post-card-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-light);margin-bottom:12px;flex-wrap:wrap}
        .post-card-meta .cat-tag{background:rgba(var(--primary-rgb),.08);color:var(--primary);padding:2px 10px;border-radius:12px;font-size:12px;font-weight:600}
        .post-card h2{font-size:20px;font-weight:700;line-height:1.4;margin-bottom:10px}
        .post-card h2 a{color:var(--text)}
        .post-card h2 a:hover{color:var(--primary)}
        .post-card-excerpt{color:var(--text-light);font-size:14px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
        .post-card-footer{padding:14px 24px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-light)}
        .post-card-footer .author-info{display:flex;align-items:center;gap:8px}
        .post-card-footer .author-info img{width:24px;height:24px;border-radius:50%}
        .post-card-footer .stats{display:flex;gap:16px}
        .post-card-footer .stats span{display:flex;align-items:center;gap:4px}

        .post-content{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow);padding:48px}
        .post-content .post-title{font-size:30px;font-weight:800;line-height:1.35;margin-bottom:16px}
        .post-content .post-meta{display:flex;align-items:center;gap:16px;font-size:14px;color:var(--text-light);padding-bottom:24px;border-bottom:1px solid var(--border);margin-bottom:32px;flex-wrap:wrap}
        .post-content .post-meta a{color:var(--text-light)}
        .post-content .post-meta a:hover{color:var(--primary)}
        .post-content .post-cover{width:100%;border-radius:10px;margin-bottom:32px;max-height:480px;object-fit:cover}
        .post-body{font-size:16px;line-height:2;color:#334155;word-break:break-word}
        .post-body h2{font-size:22px;margin:36px 0 16px;font-weight:700;padding-bottom:8px;border-bottom:1px solid var(--border)}
        .post-body h3{font-size:18px;margin:28px 0 12px;font-weight:600}
        .post-body h4{font-size:16px;margin:20px 0 8px;font-weight:600}
        .post-body p{margin-bottom:16px}
        .post-body img{width:100%;height:auto;border-radius:0.5rem;margin:1rem 0;cursor:zoom-in;display:block;}
        .post-body ul,.post-body ol{margin:12px 0 12px 24px}
        .post-body li{margin-bottom:6px}
        .post-body blockquote{border-left:0.25rem solid var(--primary);padding:1rem 1.5rem;background:var(--bg);border-radius:0 0.5rem 0.5rem 0;margin:1.25rem 0;color:var(--text-light);font-style:italic}
        .post-body pre{background:#1e293b;color:#e2e8f0;padding:1.25rem 1.5rem;border-radius:0.6rem;overflow-x:auto;margin:1.25rem 0;font-size:0.875rem;line-height:1.6}
        .post-body code{background:var(--code-bg);padding:0.1rem 0.4rem;border-radius:0.25rem;font-size:0.875rem;color:#e11d48;font-family:'Fira Code',Menlo,Monaco,Consolas,monospace}
        .post-body pre code{background:none;color:inherit;padding:0;font-size:inherit}
        .post-body table{width:100%;border-collapse:collapse;margin:1rem 0;font-size:0.875rem}
        .post-body table th,.post-body table td{border:1px solid var(--border);padding:0.6rem 0.9rem;text-align:left}
        .post-body table th{background:var(--bg);font-weight:600}
        .post-body hr{border:none;border-top:1px solid var(--border);margin:2rem 0}

        .share-bar{display:flex;align-items:center;gap:12px;margin-top:28px;padding-top:24px;border-top:1px solid var(--border)}
        .share-bar span{font-size:14px;color:var(--text-light)}
        .share-btn{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;color:#fff;font-size:14px;transition:transform .2s}
        .share-btn:hover{transform:scale(1.15);color:#fff}

        .sidebar .widget{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;margin-bottom:20px}
        .widget-title{font-size:16px;font-weight:700;margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid var(--primary);display:inline-block}
        .widget ul{list-style:none}
        .widget ul li{padding:8px 0;border-bottom:1px dashed #f0f0f0}
        .widget ul li:last-child{border-bottom:none}
        .widget ul li a{color:var(--text);font-size:14px}
        .widget ul li a:hover{color:var(--primary)}
        .widget .tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
        .widget .tag-cloud a{background:#f1f5f9;color:var(--text-light);padding:4px 12px;border-radius:16px;font-size:13px;transition:all .2s}
        .widget .tag-cloud a:hover{background:var(--primary);color:#fff}

        .profile-card-wrap{position:relative;overflow:hidden;padding:0 !important;}
        .profile-card-bg{position:absolute;inset:0;z-index:0;overflow:hidden;}
        .profile-card-bg img{width:100%;height:100%;object-fit:cover;display:block;}
        .profile-card-bg-default{background:linear-gradient(135deg,#1e3a5f 0%,#0f1b2d 40%,#1a1040 70%,#0d0d2b 100%);}
        .profile-card-bg-default::before{content:'';position:absolute;inset:0;background:repeating-conic-gradient(rgba(255,255,255,.02) 0% 25%,transparent 0% 50%) 0 0/3rem 3rem;animation:profileBgRotate 60s linear infinite;}
        .profile-card-bg-default::after{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 30% 20%,rgba(99,102,241,.25),transparent 60%),radial-gradient(ellipse at 70% 80%,rgba(139,92,246,.2),transparent 60%);}
        @keyframes profileBgRotate{to{transform:rotate(360deg);}}
        .profile-card-body{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;padding:2rem 1.5rem 1.5rem;background:linear-gradient(180deg,rgba(0,0,0,.1) 0%,rgba(0,0,0,.25) 100%);text-align:center;}
        .profile-avatar{width:4.5rem;height:4.5rem;border-radius:50%;border:0.15rem solid rgba(255,255,255,.35);object-fit:cover;margin-bottom:0.6rem;box-shadow:0 0.25rem 1rem rgba(0,0,0,.3);}
        .profile-social-row{display:flex;gap:0.5rem;margin-bottom:0.6rem;}
        .profile-social-icon{width:1.8rem;height:1.8rem;border-radius:50%;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.12);color:#fff;font-size:0.75rem;transition:all .25s;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);border:0.0625rem solid rgba(255,255,255,.1);}
        .profile-social-icon:hover{background:rgba(255,255,255,.25);transform:translateY(-0.1rem);color:#fff;}
        .profile-nickname{font-size:1.1rem;font-weight:700;color:#fff;margin-bottom:0.25rem;text-shadow:0 0.0625rem 0.2rem rgba(0,0,0,.4);}
        .profile-bio{font-size:0.8rem;color:rgba(255,255,255,.7);line-height:1.5;margin-bottom:0.8rem;max-width:100%;word-break:break-word;}
        .profile-stats{display:flex;justify-content:center;gap:1.5rem;padding-top:0.75rem;border-top:1px solid rgba(255,255,255,.12);width:100%;}
        .profile-stats .stat{text-align:center;}
        .profile-stats .stat .num{font-size:1.1rem;font-weight:800;color:#fff;}
        .profile-stats .stat .label{font-size:0.7rem;color:rgba(255,255,255,.55);}

        .cat-list a{display:flex;justify-content:space-between;align-items:center;padding:8px 0;color:var(--text);font-size:14px;border-bottom:1px dashed #f0f0f0}
        .cat-list a:last-child{border-bottom:none}
        .cat-list a:hover{color:var(--primary)}
        .cat-list .count{background:#f1f5f9;color:var(--text-light);padding:1px 8px;border-radius:10px;font-size:12px}

        .pagination{display:flex;justify-content:center;gap:6px;margin-top:32px;padding-bottom:16px}
        .pagination a,.pagination span{display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:38px;padding:0 12px;border-radius:8px;font-size:14px;transition:all .2s}
        .pagination a{background:var(--card-bg);color:var(--text);box-shadow:var(--shadow)}
        .pagination a:hover{background:var(--primary);color:#fff}
        .pagination .current{background:var(--primary);color:#fff;font-weight:600}

        .comment-list{margin-top:24px}
        .comment-item{padding:20px 0;border-bottom:1px solid var(--border)}
        .comment-item:last-child{border-bottom:none}
        .comment-header{display:flex;align-items:center;gap:12px;margin-bottom:8px}
        .comment-avatar{width:40px;height:40px;border-radius:50%;flex-shrink:0}
        .comment-author{font-weight:600;font-size:14px}
        .comment-time{font-size:12px;color:var(--text-light)}
        .comment-body{font-size:14px;line-height:1.8;color:#475569;margin-left:52px}
        .comment-reply{margin-left:52px;margin-top:4px}

        .site-footer-new{background:var(--bg);color:var(--text-light);padding:2.5rem 0 1.5rem;margin-top:3.5rem;}
        .footer-new-inner{max-width:var(--max-width);margin:0 auto;padding:0 1.5rem;}
        .footer-new-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;padding-bottom:1.5rem;border-bottom:1px solid var(--border);}
        .footer-new-col{display:flex;flex-direction:column;gap:0.5rem;}
        .footer-col-title{font-size:0.8rem;font-weight:700;color:var(--text);letter-spacing:0.02em;margin-bottom:0.25rem;}
        .footer-col-link{display:flex;align-items:center;gap:0.5rem;font-size:0.82rem;color:var(--text-light);text-decoration:none;transition:color .2s;padding:0.15rem 0;border-radius:0.25rem;}
        .footer-col-link:hover{color:var(--primary);}
        .footer-col-link i{width:1rem;text-align:center;font-size:0.75rem;color:var(--text-lighter);flex-shrink:0;}
        .footer-col-link:hover i{color:var(--primary);}
        .footer-col-plain{cursor:default;}
        .footer-col-plain:hover{color:var(--text-light);}
        .footer-col-plain:hover i{color:var(--text-lighter);}
        .footer-new-bottom{text-align:center;padding-top:1.25rem;font-size:0.75rem;color:var(--text-lighter);}
        @media(max-width:768px){
            .footer-new-grid{grid-template-columns:1fr 1fr;gap:1.5rem;}
        }
        @media(max-width:480px){
            .footer-new-grid{grid-template-columns:1fr;gap:1.25rem;}
            .site-footer-new{padding:2rem 0 1.25rem;margin-top:2.5rem;}
        }

        .back-to-top{position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,.35);backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);color:var(--primary);border:1px solid rgba(255,255,255,.25);font-size:18px;cursor:pointer;display:none;align-items:center;justify-content:center;box-shadow:0 2px 12px rgba(0,0,0,.1);transition:all .3s;z-index:99}
        .back-to-top:hover{transform:translateY(-3px);box-shadow:0 4px 16px rgba(0,0,0,.15);background:rgba(255,255,255,.5)}
        .back-to-top.show{display:flex}
        [data-theme="dark"] .back-to-top{background:rgba(30,41,59,.45);border-color:rgba(255,255,255,.1);color:var(--primary-light)}
        [data-theme="dark"] .back-to-top:hover{background:rgba(30,41,59,.6)}

        @media(max-width:992px){
            .site-main{grid-template-columns:1fr;padding:1.25rem 1rem}

            .detail-related-grid{grid-template-columns:1fr 1fr;}
            .detail-nav{grid-template-columns:1fr;}
        }
        @media(max-width:768px){
            .site-nav,.nav-search{display:none}
            .mobile-toggle{display:flex}
            .header-inner{padding:0 1rem}
            .post-content{padding:1.5rem 1rem}
            .post-content .post-title{font-size:1.5rem}
            .post-card-body{padding:1rem}
            .post-card-cover{height:11rem}
            .post-card-footer{padding:0.75rem 1rem}

            .detail-related-grid{grid-template-columns:1fr;}
            .detail-nav{grid-template-columns:1fr;}
            .link-card{padding:0.6rem 0.8rem;gap:0.6rem;}
            .link-card-icon{width:2rem;height:2rem;font-size:0.9rem;}
            .detail-comment-box{padding:1.25rem 1rem;}
        }

        /* ========== 轮播图 ========== */
        .home-carousel{position:relative;overflow:hidden;border-radius:var(--radius);margin-bottom:1.5rem;box-shadow:var(--shadow-lg);background:#1e293b;}
        .carousel-track{display:flex;transition:transform .5s ease;height:100%;}
        .carousel-slide{flex:0 0 100%;position:relative;overflow:hidden;}
        .carousel-slide img{width:100%;height:100%;object-fit:cover;display:block;}
        .carousel-slide a{display:block;width:100%;height:100%;}
        .carousel-caption{position:absolute;bottom:0;left:0;right:0;padding:1.5rem 2rem;background:linear-gradient(transparent,rgba(0,0,0,.65));color:#fff;font-size:1.2rem;font-weight:700;text-shadow:0 1px 4px rgba(0,0,0,.4);}
        .carousel-btn{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.25);backdrop-filter:blur(4px);border:none;color:#fff;width:2.8rem;height:2.8rem;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.1rem;transition:all .25s;z-index:5;}
        .carousel-btn:hover{background:rgba(255,255,255,.5);}
        .carousel-prev{left:1rem;}
        .carousel-next{right:1rem;}
        .carousel-dots{position:absolute;bottom:0.8rem;left:50%;transform:translateX(-50%);display:flex;gap:0.5rem;z-index:5;}
        .carousel-dot{width:0.5rem;height:0.5rem;border-radius:50%;background:rgba(255,255,255,.5);cursor:pointer;transition:all .25s;}
        .carousel-dot.active{background:#fff;width:1.2rem;border-radius:1rem;}

        /* ========== 公告栏 ========== */
        .home-announcement{display:flex;align-items:center;gap:0.75rem;background:linear-gradient(135deg,rgba(var(--primary-rgb),.06) 0%,rgba(var(--primary-rgb),.02) 100%);border-radius:0.75rem;padding:0.65rem 1rem;margin-bottom:1.5rem;box-shadow:var(--shadow);overflow:hidden;border:1px solid rgba(var(--primary-rgb),.1);max-width:100%;}
        .announcement-icon-wrap{flex-shrink:0;width:2rem;height:2rem;border-radius:0.5rem;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:0.8rem;box-shadow:0 0.15rem 0.4rem rgba(var(--primary-rgb),.3);}
        .announcement-scroll{flex:1;overflow:hidden;position:relative;min-width:0;}
        .announcement-text{display:inline-block;white-space:nowrap;font-size:0.85rem;font-weight:500;color:var(--text);will-change:transform;-webkit-backface-visibility:hidden;backface-visibility:hidden;}

        /* ========== 热门项目 ========== */
        .home-hot-projects{margin-bottom:1.5rem;}
        .section-title{font-size:1.1rem;font-weight:700;margin-bottom:0.8rem;color:var(--text);}
        .projects-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0.75rem;}
        .project-card{display:flex;align-items:center;gap:0.7rem;padding:0.8rem 1rem;background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow);transition:all .25s;text-decoration:none;color:var(--text);}
        .project-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-0.15rem);color:var(--primary);}
        .project-icon{flex-shrink:0;width:2.2rem;height:2.2rem;display:flex;align-items:center;justify-content:center;background:rgba(var(--primary-rgb),.1);color:var(--primary);border-radius:0.6rem;font-size:1rem;}
        .project-info{flex:1;min-width:0;}
        .project-name{font-size:0.9rem;font-weight:600;line-height:1.3;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
        .project-desc{font-size:0.75rem;color:var(--text-light);margin-top:0.1rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

        /* ========== 新帖子卡片 ========== */
        .posts-grid{display:grid;grid-template-columns:1fr;gap:1.2rem;}
        .post-card-new{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:all .3s ease;min-height:14rem;}
        .post-card-new:hover{box-shadow:var(--shadow-lg);transform:translateY(-0.2rem);}
        .post-cover-bg{position:absolute;inset:0;display:block;z-index:1;}
        .post-cover-bg img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
        .post-card-new:hover .post-cover-bg img{transform:scale(1.05);}
        .post-cover-placeholder{background:linear-gradient(135deg,#334155 0%,#1e293b 100%);}
        .placeholder-pattern{position:absolute;inset:0;opacity:.08;background:repeating-linear-gradient(45deg,transparent,transparent 1.5rem,rgba(255,255,255,.15) 1.5rem,rgba(255,255,255,.15) 3rem);}
        .post-overlay{position:relative;z-index:2;display:flex;flex-direction:column;justify-content:space-between;height:100%;min-height:14rem;padding:1rem 1.2rem;background:linear-gradient(180deg,rgba(0,0,0,.15) 0%,rgba(0,0,0,.05) 35%,rgba(0,0,0,.55) 100%);color:#fff;}
        .post-top-meta{display:flex;align-items:center;gap:0.5rem;flex-wrap:wrap;}
        .pin-badge{background:rgba(239,68,68,.9);color:#fff;padding:0.15rem 0.5rem;border-radius:0.3rem;font-size:0.7rem;font-weight:700;display:inline-flex;align-items:center;gap:0.25rem;}
        .cat-tag-new{background:rgba(var(--primary-rgb),.85);color:#fff;padding:0.15rem 0.55rem;border-radius:0.3rem;font-size:0.7rem;font-weight:600;}
        .post-bottom-info{margin-top:auto;}
        .post-title-new{font-size:1.1rem;font-weight:700;line-height:1.35;margin:0 0 0.4rem;text-shadow:0 1px 3px rgba(0,0,0,.3);}
        .post-title-new a{color:#fff;text-decoration:none;}
        .post-title-new a:hover{text-decoration:underline;}
        .post-excerpt-new{font-size:0.8rem;line-height:1.5;color:rgba(255,255,255,.75);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:0.5rem;}
        .post-footer-new{display:flex;align-items:center;justify-content:space-between;gap:0.5rem;flex-wrap:wrap;font-size:0.75rem;color:rgba(255,255,255,.65);}
        .post-author-new{display:flex;align-items:center;gap:0.4rem;}
        .post-author-new img{width:1.2rem;height:1.2rem;border-radius:50%;border:1px solid rgba(255,255,255,.3);}
        .post-stats-new{display:flex;align-items:center;gap:0.7rem;}
        .post-stats-new span{display:flex;align-items:center;gap:0.2rem;}

        /* 置顶卡片左边框 */
        .post-card-new.is-pinned{border-left:3px solid #ef4444;}

        /* ========== 链接卡片（圆角卡片） ========== */
        .link-card{display:flex;align-items:center;gap:0.85rem;padding:0.9rem 1.15rem;background:var(--card-bg);border:1px solid var(--border);border-radius:1rem;text-decoration:none;color:var(--text);transition:all .25s;margin:1rem 0;overflow:hidden;box-shadow:var(--shadow);}
        .link-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-0.1rem);border-color:var(--primary);color:var(--text);}
        .link-card-icon{flex-shrink:0;width:2.8rem;height:2.8rem;border-radius:0.65rem;background:rgba(var(--primary-rgb),.06);display:flex;align-items:center;justify-content:center;overflow:hidden;}
        .link-card-icon img{width:1.5rem;height:1.5rem;border-radius:0.4rem;object-fit:contain;}
        .link-card-icon .fas{font-size:1.1rem;color:var(--primary);}
        .link-card-body{flex:1;min-width:0;}
        .link-card-title{font-size:0.9rem;font-weight:600;line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text);}
        .link-card-url{font-size:0.75rem;color:var(--text-light);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-top:0.15rem;}
        .link-card-arrow{flex-shrink:0;color:var(--text-lighter);font-size:0.85rem;transition:transform .2s;}
        .link-card:hover .link-card-arrow{transform:translateX(0.15rem);color:var(--primary);}
        [data-theme="dark"] .link-card-icon{background:rgba(var(--primary-rgb),.12);}

        /* ========== 详情页增强 ========== */
        .detail-source{background:var(--bg);padding:0.9rem 1.25rem;border-radius:0.5rem;margin-top:1.5rem;font-size:0.875rem;color:var(--text-light);display:flex;align-items:center;gap:0.5rem;flex-wrap:wrap;}
        .detail-tags{margin-top:1.5rem;display:flex;flex-wrap:wrap;gap:0.5rem;align-items:center;}
        .detail-tags a{background:var(--bg);color:var(--text-light);padding:0.25rem 0.9rem;border-radius:1rem;font-size:0.8rem;transition:all .2s;}
        .detail-tags a:hover{background:var(--primary);color:#fff;}
        .detail-nav{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:2rem;padding-top:1.5rem;border-top:1px solid var(--border);}
        .detail-nav-item{display:flex;gap:0.75rem;padding:1rem;border-radius:0.6rem;background:var(--bg);transition:all .2s;color:var(--text);text-decoration:none;overflow:hidden;}
        .detail-nav-item:hover{box-shadow:var(--shadow);background:var(--card-bg);}
        .detail-nav-item img{width:3.75rem;height:2.8rem;object-fit:cover;border-radius:0.4rem;flex-shrink:0;}
        .detail-nav-item .nav-label{font-size:0.75rem;color:var(--text-light);margin-bottom:0.15rem;}
        .detail-nav-item .nav-title{font-size:0.875rem;font-weight:600;line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
        .detail-nav-item.next-item{text-align:right;justify-content:flex-end;}
        .detail-nav-item.next-item .nav-text{text-align:right;}
        .detail-related{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.75rem;margin-top:1.25rem;}
        .detail-related-title{font-size:1.1rem;font-weight:700;margin-bottom:1.25rem;}
        .detail-related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;}
        .detail-related-item{display:flex;gap:0.75rem;padding:0.9rem;border-radius:0.6rem;background:var(--bg);transition:all .2s;color:var(--text);text-decoration:none;overflow:hidden;}
        .detail-related-item:hover{box-shadow:var(--shadow);background:var(--card-bg);}
        .detail-related-item img{width:5rem;height:3.75rem;object-fit:cover;border-radius:0.4rem;flex-shrink:0;}
        .detail-related-item .ri-cover{width:5rem;height:3.75rem;background:linear-gradient(135deg,#e0e7ff,#c7d2fe);border-radius:0.4rem;flex-shrink:0;display:flex;align-items:center;justify-content:center;}
        .detail-related-item .ri-cover i{color:#818cf8;}
        .detail-related-item .ri-title{font-size:0.875rem;font-weight:600;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
        .detail-related-item .ri-stats{font-size:0.75rem;color:var(--text-light);margin-top:0.25rem;}
        .detail-comment-box{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.75rem;margin-top:1.25rem;}
        .detail-comment-title{font-size:1.1rem;font-weight:700;margin-bottom:1.25rem;}
        .detail-comment-form{margin-bottom:1.5rem;}
        .detail-comment-form input[type=text],.detail-comment-form input[type=email],.detail-comment-form textarea{width:100%;border:1px solid var(--border);border-radius:0.5rem;padding:0.6rem 0.9rem;font-size:0.875rem;outline:none;transition:border-color .2s;font-family:inherit;background:var(--card-bg);color:var(--text);}
        .detail-comment-form input:focus,.detail-comment-form textarea:focus{border-color:var(--primary);}
        .detail-comment-form textarea{resize:vertical;}
        .detail-reply-hint{margin-bottom:0.5rem;padding:0.5rem 0.9rem;background:var(--bg);border-radius:0.5rem;font-size:0.8rem;display:flex;align-items:center;gap:0.3rem;}
        .detail-reply-hint a{margin-left:auto;color:var(--text-light);}
        .detail-comment-actions{display:flex;justify-content:space-between;align-items:center;margin-top:0.75rem;}
        .detail-captcha{display:flex;align-items:center;gap:0.5rem;font-size:0.875rem;color:var(--text-light);}
        .detail-captcha input[type=number]{width:3.5rem;border:1px solid var(--border);border-radius:0.4rem;padding:0.4rem 0.6rem;font-size:0.875rem;outline:none;text-align:center;background:var(--card-bg);color:var(--text);}
        .detail-submit-btn{background:var(--primary);color:#fff;border:none;border-radius:0.5rem;padding:0.6rem 1.75rem;font-size:0.875rem;cursor:pointer;font-weight:600;transition:all .2s;}
        .detail-submit-btn:hover{opacity:.9;}
        .detail-pwd-box{text-align:center;padding:5rem 2.5rem;}
        .detail-pwd-box i{font-size:3.5rem;color:var(--border);margin-bottom:1.25rem;display:block;}
        .detail-pwd-box h1{font-size:1.5rem;font-weight:700;margin-bottom:0.5rem;}
        .detail-pwd-box p{color:var(--text-light);margin-bottom:1.5rem;}
        .detail-pwd-form{max-width:20rem;margin:0 auto;}
        .detail-pwd-form input{width:100%;border:0.125rem solid var(--border);border-radius:0.6rem;padding:0.75rem 1rem;font-size:0.9rem;outline:none;margin-bottom:0.75rem;text-align:center;background:var(--card-bg);color:var(--text);}
        .detail-pwd-form button{width:100%;background:var(--primary);color:#fff;border:none;border-radius:0.6rem;padding:0.75rem;font-size:0.9rem;font-weight:600;cursor:pointer;}
        .detail-empty{text-align:center;padding:5rem 0;}
        .detail-empty i{font-size:4rem;color:var(--border);}
        .detail-empty p{margin-top:1.2rem;color:var(--text-light);font-size:1rem;}


        /* ========== 性能优化 ========== */
        .home-carousel{will-change:auto;}
        .carousel-track{will-change:transform;}
        .post-card-new{will-change:transform;}
        .profile-card-bg-default::before{will-change:transform;}
        img[loading="lazy"]{content-visibility:auto;}
        /* ========== 响应式 ========== */
        @media(max-width:992px){
            .projects-grid{grid-template-columns:repeat(2,1fr);}
        }
        @media(max-width:768px){
            .home-carousel{border-radius:0.5rem;}
            .carousel-btn{width:2.2rem;height:2.2rem;font-size:0.9rem;}
            .carousel-caption{font-size:1rem;padding:1rem;}
            .carousel-prev{left:0.5rem;}
            .carousel-next{right:0.5rem;}
            .projects-grid{grid-template-columns:1fr 1fr;}
            .post-card-new{min-height:11rem;}
            .post-overlay{min-height:11rem;padding:0.75rem 0.9rem;}
            .post-title-new{font-size:0.95rem;}
            .post-excerpt-new{-webkit-line-clamp:1;}
        }
        @media(max-width:480px){
            .projects-grid{grid-template-columns:1fr 1fr;gap:0.5rem;}
            .project-card{padding:0.6rem 0.7rem;gap:0.5rem;}
            .project-icon{width:1.8rem;height:1.8rem;font-size:0.85rem;border-radius:0.5rem;}
            .project-name{font-size:0.8rem;}
            .project-desc{font-size:0.7rem;}
            .post-card-new{min-height:10rem;}
            .post-overlay{min-height:10rem;}
        }

        /* ========== 暗色模式补丁 ========== */
        [data-theme="dark"] .home-announcement{background:linear-gradient(135deg,rgba(var(--primary-rgb),.12) 0%,rgba(var(--primary-rgb),.04) 100%);border-color:rgba(var(--primary-rgb),.2);}
        [data-theme="dark"] .announcement-text{color:var(--text);}
        [data-theme="dark"] .project-card{background:var(--card-bg);}
        [data-theme="dark"] .project-card:hover{color:var(--primary);}
        [data-theme="dark"] .project-icon{background:rgba(var(--primary-rgb),.15);}
        [data-theme="dark"] .post-cover-placeholder{background:linear-gradient(135deg,#0f172a 0%,#1e293b 100%);}
        [data-theme="dark"] .placeholder-pattern{opacity:.04;}
        [data-theme="dark"] .link-card{background:var(--card-bg);border-color:var(--border);}
        [data-theme="dark"] .link-card:hover{border-color:var(--primary);}
        [data-theme="dark"] .detail-nav-item{background:rgba(255,255,255,.03);}
        [data-theme="dark"] .detail-nav-item:hover{background:var(--card-bg);}
        [data-theme="dark"] .detail-related-item{background:rgba(255,255,255,.03);}
        [data-theme="dark"] .detail-related-item:hover{background:var(--card-bg);}
        [data-theme="dark"] .detail-pwd-form input{background:var(--card-bg);color:var(--text);border-color:var(--border);}
        [data-theme="dark"] .profile-card-bg-default{background:linear-gradient(135deg,#0f172a 0%,#020617 40%,#1e1040 70%,#0d0d2b 100%);}
        [data-theme="dark"] .profile-card-bg-default::after{background:radial-gradient(ellipse at 30% 20%,rgba(99,102,241,.35),transparent 60%),radial-gradient(ellipse at 70% 80%,rgba(139,92,246,.3),transparent 60%);}
        
/* ===== 原生 video（未被 Plyr 接管时）固定 16:9 比例 ===== */
.post-body video:not(.plyr-video) {
    width: 100%;
    object-fit: contain;
    background: #000;
    border-radius: 8px;
    margin: 1rem 0;
    display: block;
    box-shadow: 0 2px 12px rgba(0,0,0,.08);
}

/* ===== Plyr 视频容器 ===== */
.post-video-wrap {
    margin: 1.5rem 0;
    border-radius: 0.6rem;
    overflow: hidden;
}

/* ===== 文章内 Plyr 预览：固定 16:9 横屏框（不影响全屏） ===== */
.post-body .plyr:not(.plyr--fullscreen):not(.plyr--fullscreen-fallback) {
    aspect-ratio: 16 / 9 !important;
    width: 100% !important;
    height: auto !important;
    position: relative;
    max-height: none !important;
}
.post-body .plyr:not(.plyr--fullscreen):not(.plyr--fullscreen-fallback) .plyr__video-wrapper {
    position: absolute !important;
    inset: 0 !important;
    width: 100% !important;
    height: 100% !important;
    padding-bottom: 0 !important;
    padding-top: 0 !important;
}
.post-body .plyr:not(.plyr--fullscreen):not(.plyr--fullscreen-fallback) video {
    width: 100% !important;
    height: 100% !important;
    object-fit: contain !important;
    background: #000;
}
/* ===== 移动端 Plyr 控制条优化 ===== */
@media (max-width: 768px) {
    /* 控制条允许换行 */
    .post-body .plyr__controls {
        flex-wrap: wrap !important;
    }
    /* 进度条独占一行，排在最上面 */
    .post-body .plyr__progress {
        flex: 1 1 100% !important;
        order: -10 !important;
        margin-bottom: 6px !important;
    }
    /* 移动端隐藏音量条（用户直接用手机音量键） */
    .post-body .plyr__volume {
        display: none !important;
    }
    /* 时间显示略窄一点，给按钮留空间 */
    .post-body .plyr__time {
        font-size: 12px !important;
        padding: 0 4px !important;
    }
    /* 控制条整体内边距收一点 */
    .post-body .plyr__controls {
        padding: 8px 10px !important;
    }
}

/* 超窄屏（<400px）进一步收紧 */
@media (max-width: 400px) {
    .post-body .plyr__control {
        padding: 5px !important;
    }
    .post-body .plyr__time--duration {
        display: none !important;   /* 超窄屏只留当前时间 */
    }
}

/* ===== 文章正文：长链接/长单词自动换行，防止横向溢出 ===== */
.post-body,
.post-body p,
.post-body li,
.post-body td,
.post-body th,
.post-body blockquote {
    word-wrap: break-word;
    overflow-wrap: break-word;
    word-break: break-word;
    max-width: 100%;
}

/* ===== 文章内链接换行（排除链接卡片） ===== */
.post-body a:not(.link-card) {
    word-break: break-all;
    overflow-wrap: anywhere;
    max-width: 100%;
}

/* ===== 链接卡片：URL 过长时省略号截断 ===== */
.post-body .link-card {
    max-width: 100%;
    overflow: hidden;
}
.post-body .link-card .link-card-body {
    min-width: 0;          /* ★ 关键：不加这个，flex 子项不缩，省略号无效 */
    overflow: hidden;
}
.post-body .link-card .link-card-title,
.post-body .link-card .link-card-url {
    display: block;
    width: 100%;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    word-break: normal;    /* 覆盖之前的 break-all */
    overflow-wrap: normal;
}

/* pre / code 单独处理：允许横向滚动，不撑破容器 */
.post-body pre {
    max-width: 100%;
    overflow-x: auto;
    white-space: pre;
    -webkit-overflow-scrolling: touch;
}
.post-body pre code {
    white-space: pre;
    word-break: normal;
    overflow-wrap: normal;
}

/* 表格：允许横向滚动 */
.post-body table {
    max-width: 100%;
}
.post-body .table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* 图片和视频：不超出容器 */
.post-body img,
.post-body video,
.post-body iframe {
    max-width: 100%;
    height: auto;
}

/* ===== 链接卡片：URL 过长省略号（强制） ===== */
.post-body .link-card .link-card-body {
    min-width: 0 !important;
    overflow: hidden !important;
}
.post-body .link-card .link-card-title,
.post-body .link-card .link-card-url {
    display: block !important;
    width: 100% !important;
    max-width: 100% !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    white-space: nowrap !important;
    word-break: normal !important;
    overflow-wrap: normal !important;
}

.post-content {
    min-width: 0;   /* 加这一行 */
    max-width: 100%;
    overflow-wrap: anywhere;
}

/* ===== 修复：grid 项被内容撑开 ===== */
.site-main > .content,
.site-main > * {
    min-width: 0;
    max-width: 100%;
}

/* 保险：post-body 截断溢出 */
.post-body {
    overflow-x: hidden;
}

/* 卡片宽度绝对不超父容器 */
.post-body .link-card {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
}

/* 移动端加强 */
@media (max-width: 768px) {
    .post-body {
        word-break: break-word;
        overflow-wrap: anywhere;
    }
    .post-body a:not(.link-card) {
        word-break: break-all;
    }
}

/* ---------- 品牌图标字体回退 ----------
   Font Awesome 6 把品牌图标（fa-qq / fa-weixin / fa-github / fa-bilibili …）
   的字形单独放在「Font Awesome 6 Brands」字体里，而普通图标在
   「Font Awesome 6 Free」里。页面统一用 fas 渲染时，品牌图标在 Free
   字体里找不到字形，就会显示成方框叉。

   下面让 Free 里找不到的字形自动回退到 Brands 字体 —— CSS 的字体回退
   是逐字生效的，所以普通图标不受影响，品牌图标也能正常显示。 */
.fa, .fas, .fa-solid, .far, .fa-regular {
    font-family: "Font Awesome 6 Free", "Font Awesome 6 Brands",
                 "Font Awesome 5 Free", "Font Awesome 5 Brands";
}