:root{--accent:#5b5cf0;--bg:#f5f6f8;--card:#fff;--text:#171a22;--muted:#6f7582;--line:#e8eaf0;--soft:#f1f2f7;--shadow:0 14px 40px rgba(20,24,36,.07)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;color:var(--text);background:var(--bg)}button,input,textarea,select{font:inherit}button{cursor:pointer}a{text-decoration:none;color:inherit}[hidden]{display:none!important}
.site-body{min-height:100vh;background:radial-gradient(circle at 50% -10%,rgba(91,92,240,.08),transparent 34%),#f6f7f9}.site-shell{width:min(1180px,calc(100% - 32px));margin:0 auto;padding:28px 0 36px}.profile-card,.notice-card,.content-section{background:var(--card);border:1px solid rgba(222,225,233,.9);border-radius:22px;box-shadow:var(--shadow)}.profile-card{display:flex;align-items:center;gap:18px;padding:24px 26px;position:relative}.profile-avatar{width:68px;height:68px;border-radius:20px;background:linear-gradient(145deg,#edf0ff,#f6efff);font-size:32px}.profile-avatar img{object-fit:cover}.profile-card h1{font-size:26px;margin:0 0 7px}.profile-card p{margin:0;color:var(--muted)}.admin-mini-link{margin-left:auto;color:#9da2ad;font-size:13px;padding:9px 12px;border-radius:10px}.admin-mini-link:hover{background:var(--soft);color:var(--text)}.notice-card{margin-top:16px;padding:20px 24px;display:flex;gap:15px}.notice-icon{width:38px;height:38px;border-radius:12px;background:#f1efff;display:flex;align-items:center;justify-content:center}.notice-card>div:last-child{flex:1}.notice-head{display:flex;align-items:center;gap:14px}.notice-head h2{font-size:17px;margin:0}.notice-head time{font-size:12px;color:#a0a5b0}.notice-card p{margin:8px 0 0;color:#555b67;line-height:1.75;font-size:14px}.content-section{margin-top:18px;padding:24px}.section-heading{display:flex;align-items:center;gap:12px;margin-bottom:18px}.section-heading.compact{margin-bottom:14px}.section-mark{width:36px;height:36px;border-radius:12px;background:#efefff;color:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:900}.section-heading h2{margin:0;font-size:19px}.section-heading p{margin:4px 0 0;color:var(--muted);font-size:12px}.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.video-card{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff}.video-cover{width:100%;height:160px;border:0;background:#eef0f6 center/cover no-repeat;position:relative;display:flex;align-items:center;justify-content:center}.cover-fallback{font-size:42px;opacity:.78}.play-circle{position:absolute;width:48px;height:48px;border-radius:50%;background:rgba(20,23,31,.78);color:#fff;display:flex;align-items:center;justify-content:center;padding-left:3px;box-shadow:0 10px 26px rgba(0,0,0,.2)}.duration{position:absolute;right:10px;bottom:10px;background:rgba(16,18,25,.72);color:#fff;font-size:11px;padding:5px 7px;border-radius:8px}.video-card-body{padding:16px}.video-card h3{font-size:16px;margin:0 0 7px}.video-card p{color:var(--muted);font-size:13px;line-height:1.55;margin:0 0 14px;min-height:40px}.text-btn{border:0;background:#f0efff;color:var(--accent);padding:9px 12px;border-radius:10px;font-weight:700;font-size:13px}.text-btn span{margin-left:4px}.link-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.link-card{border:1px solid var(--line);border-radius:17px;padding:16px;display:flex;gap:13px;align-items:center;transition:.2s;background:#fff}.link-card:hover{transform:translateY(-3px);box-shadow:0 14px 28px rgba(25,28,38,.08);border-color:#dcdef0}.link-icon{width:50px;height:50px;border-radius:15px;background:#f1f2f7;font-size:24px}.link-card h3{font-size:15px;margin:0 0 4px}.link-card p{font-size:12px;color:var(--muted);margin:0 0 7px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:150px}.link-card div span{font-size:12px;color:var(--accent);font-weight:700}.bottom-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.about-card,.contact-card{margin-top:18px}.about-text{font-size:14px;color:#555b67;line-height:1.85;margin:2px 0 14px}.about-tag{display:inline-flex;color:var(--accent);background:#f0efff;border-radius:999px;padding:7px 11px;font-size:12px}.contact-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.contact-item{border:1px solid var(--line);background:#fff;border-radius:14px;padding:12px;display:flex;align-items:center;gap:10px;text-align:left}.contact-item:hover{background:#fafaff}.contact-icon{width:40px;height:40px;border-radius:12px;background:#f1f2f7;font-size:20px}.contact-item span{display:flex;flex-direction:column;gap:3px;min-width:0;flex:1}.contact-item b{font-size:13px}.contact-item small{color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.contact-item em{font-style:normal;color:#a0a5b0;font-size:11px}footer{text-align:center;color:#9aa0aa;font-size:12px;padding:28px 10px 0}.media-icon{display:inline-flex;align-items:center;justify-content:center;overflow:hidden;flex:0 0 auto}.media-icon img{width:100%;height:100%;display:block;object-fit:cover}.video-modal{display:none}.video-modal.show{display:block}.video-modal-mask{position:fixed;inset:0;background:rgba(13,15,21,.65);backdrop-filter:blur(4px);z-index:50}.video-modal-box{position:fixed;z-index:60;left:50%;top:50%;transform:translate(-50%,-50%);width:min(880px,calc(100% - 28px));background:#fff;border-radius:20px;padding:20px;box-shadow:0 30px 100px rgba(0,0,0,.26)}.video-modal-box h3{margin:0 44px 16px 0}.video-modal-box video{width:100%;max-height:68vh;background:#000;border-radius:13px}.video-modal-box p{color:var(--muted);font-size:13px;line-height:1.6;margin:12px 2px 0}.modal-close{position:absolute;right:18px;top:15px;border:0;background:#f0f1f4;width:34px;height:34px;border-radius:11px;font-size:22px}.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);background:#1d2029;color:#fff;border-radius:12px;padding:11px 16px;opacity:0;pointer-events:none;transition:.2s;z-index:100}.toast.show{opacity:1;transform:translate(-50%,0)}
.login-body{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:#f4f5f7}.login-card{width:min(410px,100%);background:#fff;border:1px solid var(--line);border-radius:22px;padding:30px;box-shadow:var(--shadow)}.login-logo{width:54px;height:54px;border-radius:17px;background:#f0efff;color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:28px}.login-card h1{font-size:24px;margin:18px 0 7px}.login-card p{color:var(--muted);font-size:13px;margin:0 0 22px}.login-card label,.form-card label{display:block;font-weight:700;font-size:13px;margin:14px 0 7px}.login-card input,.form-card input,.form-card textarea,.form-card select{width:100%;border:1px solid #dfe2e9;background:#fff;border-radius:12px;padding:11px 12px;outline:none;transition:.18s}.login-card input:focus,.form-card input:focus,.form-card textarea:focus,.form-card select:focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 13%,transparent)}.primary-btn,.ghost-btn{border:0;border-radius:11px;padding:11px 16px;font-weight:800}.primary-btn{background:var(--accent);color:#fff}.ghost-btn{background:#f0f1f5;color:#555b67}.full{width:100%;margin-top:20px}.login-tip{font-size:12px;color:#999fa9;text-align:center;margin-top:16px}.form-error{background:#fff0f1;color:#b62f3b;border-radius:11px;padding:10px 12px;font-size:13px}
.admin-body{background:#f4f5f7;min-height:100vh}.admin-shell{display:grid;grid-template-columns:230px 1fr;min-height:100vh}.admin-sidebar{background:#fff;border-right:1px solid var(--line);padding:22px 16px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}.admin-brand{display:flex;align-items:center;gap:11px;padding:4px 8px 23px}.admin-brand>span{width:42px;height:42px;border-radius:13px;background:#f0efff;color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:24px}.admin-brand div{display:flex;flex-direction:column;gap:3px}.admin-brand small{color:#999fa9}.admin-sidebar nav{display:flex;flex-direction:column;gap:6px}.nav-btn{border:0;background:transparent;color:#646a75;text-align:left;padding:11px 13px;border-radius:11px}.nav-btn:hover,.nav-btn.active{background:#f0efff;color:var(--accent);font-weight:800}.sidebar-bottom{margin-top:auto;display:flex;flex-direction:column;gap:7px}.sidebar-bottom a{padding:10px 12px;border-radius:10px;color:#7c818b;font-size:13px}.sidebar-bottom a:hover{background:#f4f5f7}.admin-main{padding:24px;min-width:0}.admin-topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.admin-topbar h1{font-size:25px;margin:0 0 5px}.admin-topbar p{color:var(--muted);font-size:13px;margin:0}.admin-page{display:none}.admin-page.active{display:block}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.stat-box,.admin-card{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 7px 24px rgba(25,28,38,.035)}.stat-box{padding:20px}.stat-box strong{display:block;font-size:28px;color:var(--accent)}.stat-box span{display:block;color:var(--muted);font-size:12px;margin-top:7px}.admin-card{padding:22px;margin-bottom:16px}.intro-panel{margin-top:16px}.admin-card h2{font-size:18px;margin:0}.admin-card p{color:var(--muted);font-size:13px;line-height:1.7}.card-title{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:15px}.card-title p{margin:5px 0 0}.card-title.inline{align-items:center}.form-grid{display:grid;gap:12px}.form-grid.two{grid-template-columns:1fr 1fr}.form-grid.three{grid-template-columns:repeat(3,1fr)}.form-card textarea{resize:vertical}.input-upload{display:grid;grid-template-columns:1fr auto;gap:8px}.small-upload{display:flex!important;align-items:center;justify-content:center;background:#eff0f4;border-radius:11px;padding:0 13px!important;margin:0!important;white-space:nowrap;cursor:pointer;font-size:12px!important}.form-actions{margin-top:18px;display:flex;gap:10px}.switch{margin:0!important}.switch input{display:none}.switch span{display:block;width:46px;height:26px;background:#d9dce3;border-radius:99px;position:relative;transition:.2s}.switch span:before{content:"";position:absolute;width:20px;height:20px;border-radius:50%;background:#fff;left:3px;top:3px;box-shadow:0 2px 7px rgba(0,0,0,.2);transition:.2s}.switch input:checked+span{background:var(--accent)}.switch input:checked+span:before{left:23px}.manage-list{display:flex;flex-direction:column;gap:9px}.manage-row{border:1px solid var(--line);border-radius:14px;padding:13px;display:flex;align-items:center;gap:12px}.manage-main{flex:1;min-width:0}.manage-main b{display:block;font-size:14px}.manage-main span{display:block;color:var(--muted);font-size:12px;margin-top:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.manage-actions{display:flex;gap:6px;flex-wrap:wrap}.manage-actions button{border:0;background:#f0f1f5;color:#555b67;border-radius:9px;padding:7px 10px;font-size:12px}.manage-actions button.danger{background:#fff0f1;color:#bd3541}.empty-admin{text-align:center;color:#a0a5af;padding:24px;border:1px dashed #d9dce4;border-radius:14px}.upload-progress{position:fixed;inset:0;background:rgba(255,255,255,.82);backdrop-filter:blur(3px);z-index:120;display:flex;align-items:center;justify-content:center}.upload-progress>div{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:16px;padding:22px;width:min(330px,calc(100% - 32px));display:flex;flex-direction:column;gap:13px}.upload-progress span{font-size:14px;font-weight:700}.upload-progress progress{width:100%;accent-color:var(--accent)}
@media(max-width:900px){.video-grid{grid-template-columns:repeat(2,1fr)}.link-grid{grid-template-columns:repeat(2,1fr)}.bottom-grid{grid-template-columns:1fr}.contact-card{margin-top:0}.admin-shell{grid-template-columns:1fr}.admin-sidebar{position:relative;height:auto;border-right:0;border-bottom:1px solid var(--line)}.admin-sidebar nav{display:grid;grid-template-columns:repeat(3,1fr)}.sidebar-bottom{margin-top:14px;flex-direction:row}.stats-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.site-shell{width:min(100% - 20px,1180px);padding-top:10px}.profile-card{padding:18px}.profile-avatar{width:56px;height:56px;border-radius:17px}.profile-card h1{font-size:20px}.admin-mini-link{display:none}.notice-card,.content-section{border-radius:18px}.content-section{padding:18px}.video-grid,.link-grid,.contact-list{grid-template-columns:1fr}.video-cover{height:180px}.link-card p{max-width:none}.admin-main{padding:14px}.admin-topbar{align-items:flex-start}.stats-grid,.form-grid.two,.form-grid.three{grid-template-columns:1fr}.admin-sidebar nav{grid-template-columns:repeat(2,1fr)}.input-upload{grid-template-columns:1fr}.small-upload{min-height:42px}.manage-row{align-items:flex-start;flex-direction:column}.manage-actions{width:100%}.manage-actions button{flex:1}.video-modal-box{padding:14px}}

/* v1.2.0 稳定性与细节优化 */
[hidden]{display:none!important}
button:disabled,input:disabled,select:disabled{cursor:not-allowed;opacity:.58}
button,a,input,select,textarea{outline:none}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{box-shadow:0 0 0 3px rgba(91,92,240,.18)}
body.modal-open{overflow:hidden}
.video-cover{overflow:hidden}
.video-cover-image{position:absolute;inset:0;width:100%;height:100%;display:block;object-fit:cover;transition:transform .25s}
.video-cover:hover .video-cover-image{transform:scale(1.025)}
.video-cover:after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(10,12,18,.14),transparent 55%);pointer-events:none}
.video-cover .play-circle,.video-cover .duration{z-index:2}
.media-icon.image-failed{font-size:20px}
.logout-form{margin:0}
.logout-form button{width:100%;border:0;background:transparent;color:#7c818b;text-align:left;padding:10px 12px;border-radius:10px;font-size:13px}
.logout-form button:hover{background:#f4f5f7;color:#343842}
.version-badge{display:inline-flex;align-items:center;border-radius:999px;background:#f0efff;color:var(--accent);padding:6px 10px;font-size:12px;font-weight:800}
.server-check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.server-check{border:1px solid var(--line);border-radius:13px;padding:13px;background:#fafbfc;min-width:0}
.server-check span{display:block;color:var(--muted);font-size:12px;margin-bottom:6px}
.server-check b{display:block;font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.status-ok{color:#16845b!important}.status-bad{color:#c33c48!important}
.server-warning{margin-top:12px;border:1px solid #f0d9a5;background:#fff9e9;color:#8b6418;border-radius:12px;padding:11px 13px;font-size:13px;line-height:1.65}
.manage-thumb{width:42px;height:42px;border-radius:12px;background:#f1f2f7;display:flex;align-items:center;justify-content:center;overflow:hidden;flex:0 0 auto}
.manage-thumb img{width:100%;height:100%;object-fit:cover;display:block}.manage-thumb.emoji{font-size:20px}
.upload-progress{background:rgba(245,246,249,.88);backdrop-filter:blur(6px)}
.upload-progress-card{background:#fff;border:1px solid var(--line);box-shadow:0 22px 70px rgba(25,28,38,.15);border-radius:18px;padding:22px;width:min(460px,calc(100% - 32px));display:flex;flex-direction:column;gap:13px}
.upload-progress-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.upload-progress-head strong{font-size:17px}
.upload-progress-head button{border:0;background:#f0f1f5;color:#555b67;border-radius:9px;padding:7px 11px;font-size:12px}
.upload-progress span{font-size:13px;font-weight:700;line-height:1.55;word-break:break-all}
.upload-progress progress{width:100%;height:10px;accent-color:var(--accent)}
.upload-progress small{color:var(--muted);line-height:1.55}
@media(max-width:900px){.server-check-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.server-check-grid{grid-template-columns:1fr}.sidebar-bottom{align-items:stretch}.logout-form{flex:1}.logout-form button{text-align:center}.manage-thumb{width:38px;height:38px}.upload-progress-card{padding:18px}}
.card-title-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}.compact-btn{padding:7px 10px;font-size:12px}
@media(max-width:600px){.card-title-actions{width:100%;justify-content:flex-start}.card-title{flex-wrap:wrap}}
body.dialog-open{overflow:hidden}.admin-dialog{position:fixed;inset:0;z-index:150;display:flex;align-items:center;justify-content:center;padding:18px}.admin-dialog-mask{position:absolute;inset:0;background:rgba(25,28,38,.38);backdrop-filter:blur(4px)}.admin-dialog-box{position:relative;width:min(420px,100%);background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:0 24px 80px rgba(25,28,38,.2)}.admin-dialog-box h3{margin:0 0 10px;font-size:18px}.admin-dialog-box p{margin:0;color:#555b67;line-height:1.75;white-space:pre-wrap;word-break:break-word}.admin-dialog-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:20px}.admin-dialog-actions button{min-width:78px}