:root{--p:#ff2442;--p2:#ff7854;--bg:#f5f5f5;--card:#fff;--t1:#222;--t2:#555;--t3:#999;--line:#eee}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--t1);font-size:14px}
a{color:inherit;text-decoration:none}img{display:block;max-width:100%}
input,textarea,select,button{font-family:inherit;border:none;outline:none}button{cursor:pointer}
::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-thumb{background:#ddd;border-radius:3px}
.sidebar{position:fixed;left:0;top:0;bottom:0;width:220px;background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;z-index:100}
.side-logo{padding:24px 22px 18px;font-size:22px;font-weight:800;color:var(--p);display:flex;align-items:center;gap:8px}
.side-nav{flex:1;padding:10px 12px;overflow-y:auto}
.side-nav .item{display:flex;align-items:center;gap:12px;padding:13px 16px;border-radius:10px;font-size:15px;color:var(--t2);margin-bottom:4px;cursor:pointer}
.side-nav .item:hover{background:#fff0f2}
.side-nav .item.active{background:#fff0f2;color:var(--p);font-weight:600}
.side-nav .item .ico{font-size:20px;width:24px;text-align:center}
.side-nav .pub-btn{margin:16px 8px;background:var(--p);color:#fff;border-radius:26px;padding:13px;font-size:15px;font-weight:600;text-align:center;justify-content:center;gap:8px}
.side-nav .pub-btn:hover{background:#e01e3c}
.side-foot{padding:14px;border-top:1px solid var(--line)}
.side-user{display:flex;align-items:center;gap:10px;padding:8px;border-radius:10px;cursor:pointer}
.side-user:hover{background:#fafafa}
.side-user img{width:36px;height:36px;border-radius:50%;background:#eee}
.side-user .nick{font-size:13px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:120px}
.side-user .sub{font-size:11px;color:var(--t3)}
.main{margin-left:220px;min-height:100vh}
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);padding:14px 28px;display:flex;align-items:center;gap:20px}
.topbar .tabs{display:flex;gap:24px}
.topbar .tabs a{font-size:16px;color:var(--t3);padding:6px 0;cursor:pointer}
.topbar .tabs a.active{color:var(--t1);font-weight:600;position:relative}
.topbar .tabs a.active::after{content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);width:24px;height:3px;background:var(--p);border-radius:2px}
.topbar .search{margin-left:auto;display:flex;align-items:center;background:#f2f2f2;border-radius:20px;padding:8px 16px;gap:8px;width:280px}
.topbar .mac-entry{flex-shrink:0;display:flex;align-items:center;gap:6px;background:linear-gradient(135deg,#2b2440,#5a4b8a);color:#fff;font-size:13px;font-weight:600;text-decoration:none;border-radius:20px;padding:8px 16px;white-space:nowrap;transition:.18s;box-shadow:0 2px 10px rgba(43,36,64,.25)}
.topbar .mac-entry:hover{filter:brightness(1.1);transform:translateY(-1px)}
.topbar .search input{flex:1;background:transparent;font-size:13px}
.content{padding:20px 28px 60px}
.waterfall{column-gap:16px}
@media(min-width:1600px){.waterfall{column-count:5}}
@media(min-width:1200px) and (max-width:1599px){.waterfall{column-count:4}}
@media(min-width:900px) and (max-width:1199px){.waterfall{column-count:3}}
@media(min-width:600px) and (max-width:899px){.waterfall{column-count:2}}
@media(max-width:599px){.waterfall{column-count:2;column-gap:10px}}
.post-card{break-inside:avoid;background:#fff;border-radius:16px;overflow:hidden;margin-bottom:16px;cursor:pointer;transition:transform .25s cubic-bezier(.25,.8,.25,1),box-shadow .25s cubic-bezier(.25,.8,.25,1);border:1px solid transparent}
.post-card:hover{transform:translateY(-6px);box-shadow:0 16px 36px rgba(0,0,0,.12);border-color:rgba(255,36,66,.08)}
.post-card .cover{width:100%;background:#f0f0f0;display:block}
.post-card .body{padding:12px 14px 14px}
.post-card .title{font-size:14px;line-height:1.45;color:var(--t1);display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;font-weight:500}
.post-card .snippet{font-size:12px;color:var(--t3);line-height:1.5;margin-top:8px;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}
.post-card .foot{display:flex;justify-content:space-between;align-items:center;margin-top:12px}
.post-card .author{display:flex;align-items:center;gap:6px;overflow:hidden}
.post-card .author img{width:22px;height:22px;border-radius:50%;background:#eee;flex-shrink:0}
.post-card .author .name{font-size:12px;color:var(--t3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.post-card .stats{display:flex;gap:10px;align-items:center}
.post-card .stats span{font-size:11px;color:var(--t3);display:flex;align-items:center;gap:3px}
/* 热门话题横幅 */
.topic-banner{margin:0 28px 16px;display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;padding:4px 0}
.topic-banner::-webkit-scrollbar{display:none}
.topic-card{flex-shrink:0;width:180px;height:80px;border-radius:12px;overflow:hidden;position:relative;cursor:pointer;transition:transform .2s}
.topic-card:hover{transform:scale(1.03)}
.topic-card .tc-bg{position:absolute;inset:0;object-fit:cover;width:100%;height:100%}
.topic-card .tc-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(0,0,0,.45),rgba(0,0,0,.15))}
.topic-card .tc-info{position:absolute;bottom:0;left:0;right:0;padding:10px 12px;color:#fff}
.topic-card .tc-name{font-size:14px;font-weight:600;text-shadow:0 1px 3px rgba(0,0,0,.3)}
.topic-card .tc-count{font-size:11px;opacity:.85;margin-top:2px}
.official{font-size:10px;color:#fff;background:var(--p);border-radius:3px;padding:0 4px;margin-left:4px}
.cover-wrap{position:relative}
.vip-mask{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(transparent,rgba(0,0,0,.65));color:#ffd76a;font-size:12px;font-weight:600;padding:14px 10px 8px;text-align:center}
.ptag{display:inline-block;font-size:11px;color:var(--p);background:#fff0f2;border-radius:4px;padding:1px 6px;margin-bottom:6px}
.vip-tag{color:#a87b1a;background:#fff7e0}
.post-card .like{font-size:12px;color:var(--t3)}
.btn{background:var(--p);color:#fff;border-radius:24px;padding:13px;font-size:16px;font-weight:600;border:none;cursor:pointer}
.btn:disabled{opacity:.6}
.btn-gray{background:#f2f2f2;color:var(--t2)}
.empty{text-align:center;color:var(--t3);padding:80px 20px;font-size:14px}
.loadmore{text-align:center;color:#bbb;font-size:12px;padding:24px}
.toast{position:fixed;top:24px;left:50%;transform:translateX(-50%);background:rgba(0,0,0,.82);color:#fff;padding:12px 24px;border-radius:24px;font-size:14px;z-index:300;pointer-events:none}
/* 运营弹窗 */
.site-modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:500;display:flex;align-items:center;justify-content:center;animation:fadeIn .25s}
.site-modal{background:#fff;border-radius:20px;padding:32px 28px 24px;max-width:380px;width:90%;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.2);position:relative;animation:popIn .3s cubic-bezier(.25,.8,.25,1)}
.site-modal .sm-close{position:absolute;top:10px;right:14px;font-size:20px;color:#bbb;cursor:pointer;line-height:1;padding:4px}
.site-modal .sm-icon{font-size:48px;margin-bottom:8px}
.site-modal .sm-title{font-size:20px;font-weight:700;color:#222;margin-bottom:6px}
.site-modal .sm-days{font-size:36px;font-weight:800;background:linear-gradient(135deg,#ff2442,#ff6b81);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin:8px 0}
.site-modal .sm-stats{display:flex;justify-content:center;gap:20px;margin:16px 0}
.site-modal .sm-stat{text-align:center}
.site-modal .sm-stat .val{font-size:20px;font-weight:700;color:#ff2442}
.site-modal .sm-stat .lbl{font-size:11px;color:#999;margin-top:2px}
.site-modal .sm-icp{font-size:11px;color:#bbb;margin-top:12px}
.site-modal .sm-btn{display:inline-block;margin-top:16px;background:linear-gradient(135deg,#ff2442,#ff6b81);color:#fff;border:none;padding:10px 36px;border-radius:24px;font-size:14px;font-weight:600;cursor:pointer;transition:opacity .2s}
.site-modal .sm-btn:hover{opacity:.9}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes popIn{from{transform:scale(.85);opacity:0}to{transform:scale(1);opacity:1}}
/* 全局图片灯箱 */
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.88);display:none;align-items:center;justify-content:center;z-index:400;flex-direction:column}
.lightbox img{max-width:92%;max-height:82%;border-radius:8px;object-fit:contain}
.lightbox .lb-close{position:absolute;top:18px;right:22px;color:#fff;font-size:30px;cursor:pointer;line-height:1}
.lightbox .lb-tip{color:rgba(255,255,255,.7);font-size:12px;margin-top:14px}
.box{max-width:680px;margin:20px auto;background:#fff;border-radius:16px;padding:28px}
.box-sm{max-width:420px;margin:60px auto;background:#fff;border-radius:20px;padding:40px 36px;box-shadow:0 8px 30px rgba(0,0,0,.06)}
.ipt{background:#f5f5f5;border-radius:12px;padding:14px 16px;font-size:14px;width:100%;margin-bottom:14px}
.form-item{margin-bottom:14px}.form-item label{display:block;font-size:13px;color:#666;margin-bottom:6px}
.form-item input,.form-item textarea,.form-item select{width:100%;padding:11px 14px;border:1px solid #ddd;border-radius:8px;font-size:14px}
.row{display:flex;gap:16px}.row .form-item{flex:1}
.detail-wrap{max-width:1000px;margin:0 auto;background:#fff;border-radius:16px;overflow:hidden;display:flex;align-items:flex-start}
.detail-wrap .left{flex:1;max-width:560px;background:#000;display:flex;align-items:center;justify-content:center;position:sticky;top:16px}
.detail-wrap .left img{max-width:100%;max-height:80vh;object-fit:contain}
.detail-wrap .right{flex:1;padding:24px 28px;display:flex;flex-direction:column}
.session{display:flex;align-items:center;gap:14px;padding:16px 20px;border-bottom:1px solid var(--line);cursor:pointer}
.session:hover{background:#fafafa}
.session .av-wrap{position:relative}.session img.av{width:48px;height:48px;border-radius:50%;background:#eee}
.session .badge{position:absolute;top:-4px;right:-4px;background:var(--p);color:#fff;font-size:10px;min-width:18px;height:18px;border-radius:9px;text-align:center;line-height:18px;padding:0 4px}
.chat-wrap{max-width:680px;margin:20px auto;background:#fff;border-radius:16px;display:flex;flex-direction:column;height:calc(100vh - 120px);overflow:hidden}
.chat-list{flex:1;overflow-y:auto;padding:20px}
.msg-row{display:flex;margin-bottom:18px;align-items:flex-start}.msg-row.mine{flex-direction:row-reverse}
.msg-row img.av{width:38px;height:38px;border-radius:50%;background:#eee;flex-shrink:0}
.msg-row .bubble{max-width:60%;background:#f5f5f5;padding:11px 16px;border-radius:16px;font-size:14px;margin:0 12px;line-height:1.5;word-break:break-all}
.msg-row.mine .bubble{background:var(--p);color:#fff}
.profile-hd{max-width:900px;margin:20px auto;background:#fff;border-radius:16px;padding:36px;display:flex;align-items:center;gap:24px}
.profile-hd img.av{width:96px;height:96px;border-radius:50%;background:#eee}
.profile-hd .nick{font-size:22px;font-weight:700}
.profile-hd .bio{font-size:14px;color:var(--t3);margin-top:8px}
.profile-hd .stat{display:flex;gap:36px;margin-left:auto}
.profile-hd .stat .num{font-size:22px;font-weight:700;text-align:center}
.profile-hd .stat .lbl{font-size:12px;color:var(--t3);text-align:center;margin-top:2px}
.profile-hd .msg-btn{background:var(--p);color:#fff;border-radius:22px;padding:9px 26px;font-size:14px;border:none;cursor:pointer}
.edit-row{display:flex;align-items:center;padding:16px 0;border-bottom:1px solid var(--line)}
.edit-row .lbl{width:90px;font-size:14px;color:var(--t3)}
.edit-row input,.edit-row select{flex:1;font-size:14px;background:transparent}
.edit-row img.av{width:56px;height:56px;border-radius:50%;background:#eee;margin-left:auto;cursor:pointer}
.set-item{display:flex;justify-content:space-between;align-items:center;padding:18px 24px;border-bottom:1px solid var(--line);cursor:pointer;font-size:15px}
.set-item:hover{background:#fafafa}.set-item .arrow{color:#ccc}
.upd-mask{position:fixed;inset:0;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;z-index:200}
.upd-box{width:340px;background:#fff;border-radius:16px;overflow:hidden}
.upd-head{padding:24px;font-size:16px;font-weight:700;text-align:center;color:#fff;background:linear-gradient(135deg,var(--p),var(--p2))}
.upd-log{padding:20px;font-size:14px;color:var(--t2);line-height:1.6;max-height:220px;overflow-y:auto;white-space:pre-wrap}
.upd-btns{display:flex;border-top:1px solid var(--line)}
.upd-btns .b{flex:1;text-align:center;padding:14px 0;font-size:14px;cursor:pointer}
.upd-btns .b.skip{color:var(--t3)}.upd-btns .b.go{color:var(--p);font-weight:600;border-left:1px solid var(--line)}
@media(max-width:768px){
.sidebar{width:100%;height:auto;bottom:auto;flex-direction:row;align-items:center;padding:0 12px;border-right:none;border-bottom:1px solid var(--line)}
.side-logo{padding:12px;font-size:18px}.side-nav{display:none}.side-foot{display:none}
/* 顶部 logo 栏在移动端可跟随滚动隐藏，节省首屏空间 */
.sidebar{position:sticky;top:0}
.main{margin-left:0;padding-bottom:calc(62px + env(safe-area-inset-bottom,0px))}
.topbar{padding:8px 12px;flex-direction:column;align-items:stretch;gap:8px}
.topbar .tabs{display:flex;overflow-x:auto;scrollbar-width:none;gap:6px}.topbar .tabs::-webkit-scrollbar{display:none}
.topbar .tabs a{padding:6px 14px;font-size:14px;white-space:nowrap}
.topbar .search{width:100%;flex:1;padding:7px 14px}
.topbar .mac-entry{align-self:flex-end;flex-shrink:0;padding:7px 14px;font-size:12px}
.content{padding:12px}.detail-wrap{flex-direction:column;max-width:100%}.detail-wrap .left{max-width:100%;position:static}.detail-wrap .right{max-height:none}
.profile-hd{flex-wrap:wrap;padding:18px;gap:14px}.profile-hd .stat{margin-left:0}
.box,.sign-banner,.tag-bar,.topic-banner{padding-left:14px;padding-right:14px;margin-left:14px;margin-right:14px}
.tag-bar{padding-top:10px;padding-bottom:10px;margin:0 0 12px}
.sign-banner{margin:0 14px 14px;padding:12px 16px}
.vip-grid,.shop .grid,.growth{grid-template-columns:1fr!important;gap:12px;padding:0 14px}
.vip-wrap,.shop,.mine,.profile{max-width:100%}
.vip-card,.card,.gcard{padding:14px}
.detail-title{font-size:20px}.detail-body{font-size:15px}
.ptag,.tag-chip{font-size:12px}
.pub-box{padding:14px}.pub-box textarea{min-height:140px;font-size:15px}
.profile{flex-direction:column;text-align:center;gap:16px}.profile .stats{margin-left:0;justify-content:center;flex-wrap:wrap;gap:16px}
.note-grid{grid-template-columns:repeat(2,1fr)!important}
.shop-head,.vip-hero{flex-direction:column;align-items:flex-start;gap:14px;padding:18px}
.shop-head h1,.vip-hero h1{font-size:20px}
.mobile-tab{display:flex!important}
/* 沉浸式页面（私信会话 / AI对话）：隐藏底栏，输入框贴底 */
body.immersive .mobile-tab{display:none!important}
body.immersive .main{padding-bottom:0}
body.immersive .sidebar{display:none}
}
@media(max-width:380px){
.topbar .tabs a{padding:6px 10px;font-size:13px}
.profile-hd{padding:14px}
}
.mobile-tab{display:none;position:fixed;bottom:0;left:0;right:0;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-top:1px solid var(--line);z-index:100;align-items:flex-end;padding-bottom:env(safe-area-inset-bottom,0)}
.mobile-tab a{flex:1;text-align:center;padding:7px 0 6px;color:var(--t3);font-size:11px;position:relative;transition:color .15s}
.mobile-tab a.active{color:var(--p);font-weight:600}
.mobile-tab a .ico{font-size:21px;display:block;line-height:1.25;position:relative}
.mobile-tab a.active .ico{transform:translateY(-1px)}
/* 头像框 + VIP角标 */
@keyframes afSpin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}
.avatar-wrap{position:relative;display:inline-block;flex-shrink:0}
.avatar-wrap img{border-radius:50%;display:block}
.vip-badge{position:absolute;bottom:-2px;right:-4px;color:#fff;font-size:8px;min-width:16px;height:16px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:700;border:2px solid #fff;box-shadow:0 1px 4px rgba(0,0,0,.2);padding:0 4px;white-space:nowrap}
.vip-badge.lv1{background:linear-gradient(135deg,#ffd700,#ffaa00)}
.vip-badge.lv2{background:linear-gradient(135deg,#ff2d55,#ff6b81)}
/* 勋章样式 */
.badge-list{display:flex;gap:4px;flex-wrap:wrap}
.badge-item{font-size:16px;cursor:help;transition:transform .15s;position:relative}
.badge-item:hover{transform:scale(1.2)}
/* 中间凸起发布按钮 */
.mobile-tab .mt-pub{flex:0 0 58px;display:flex;align-items:center;justify-content:center;padding:0}
.mobile-tab .mt-pub .pub-circle{width:46px;height:46px;margin-top:-16px;border-radius:50%;background:linear-gradient(135deg,var(--p),var(--p2));color:#fff;font-size:26px;font-weight:300;line-height:46px;box-shadow:0 4px 14px rgba(255,36,66,.4)}
.mobile-tab .mt-pub:active .pub-circle{transform:scale(.92)}
.mobile-tab .nav-badge{top:-3px;right:-9px}
/* 签到横幅（旧版，保留兼容） */
/* 轮播图 + 签到 PC 并排 */
.hero-row{display:flex;gap:16px;padding:0 28px;margin-bottom:16px;max-width:100%}
.hero-carousel{flex:1;min-width:0;position:relative;border-radius:16px;overflow:hidden;background:#f0f0f0;aspect-ratio:3/1}
.hero-carousel .hc-track{display:flex;height:100%;transition:transform .5s cubic-bezier(.25,.8,.25,1)}
.hero-carousel .hc-slide{flex:0 0 100%;height:100%}
.hero-carousel .hc-slide img{width:100%;height:100%;object-fit:cover;display:block}
.hero-carousel .hc-dots{position:absolute;bottom:12px;left:50%;transform:translateX(-50%);display:flex;gap:8px}
.hero-carousel .hc-dot{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.5);cursor:pointer;transition:all .25s}
.hero-carousel .hc-dot.on{background:#fff;width:24px;border-radius:4px}
.hero-carousel .hc-arrow{position:absolute;top:50%;transform:translateY(-50%);width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.85);border:none;cursor:pointer;font-size:16px;color:#333;display:flex;align-items:center;justify-content:center;z-index:2;transition:opacity .2s;opacity:0}
.hero-carousel:hover .hc-arrow{opacity:1}
.hero-carousel .hc-prev{left:10px}.hero-carousel .hc-next{right:10px}
/* 签到卡片（PC 右列） */
.sign-card{width:280px;flex-shrink:0;background:linear-gradient(160deg,#fff5f7 0%,#fff 60%);border-radius:16px;padding:20px 16px;display:flex;flex-direction:column;align-items:center;text-align:center;box-shadow:0 2px 12px rgba(0,0,0,.04);border:1px solid #ffe3e8}
.sign-card .sc-avatar{width:52px;height:52px;border-radius:50%;border:2px solid #ff6b81;background:#eee;margin-bottom:8px}
.sign-card .sc-nick{font-size:15px;font-weight:600;color:#222;margin-bottom:6px}
.sign-card .sc-points{font-size:13px;color:#ff2e4d;margin-bottom:4px}
.sign-card .sc-streak{font-size:12px;color:#ff6b81;margin-bottom:2px}
.sign-card .sc-days{font-size:11px;color:#999;margin-bottom:12px}
.sign-card .sc-btn{background:linear-gradient(135deg,#ff2e4d,#ff6b81);color:#fff;border:none;padding:10px 36px;border-radius:24px;font-size:14px;font-weight:600;cursor:pointer;transition:opacity .2s}
.sign-card .sc-btn:hover{opacity:.9}
.sign-card .sc-btn.done{background:#e0e0e0;color:#999;cursor:default}
/* 移动端：轮播图全宽 + 签到卡片下方 */
@media(max-width:768px){
.hero-row{flex-direction:column;padding:0 12px;gap:10px}
.hero-carousel{aspect-ratio:16/7}
.sign-card{width:100%;flex-direction:row;flex-wrap:wrap;gap:8px 12px;padding:14px 16px;text-align:left;align-items:center}
.sign-card .sc-avatar{width:40px;height:40px;margin:0}
.sign-card .sc-nick{font-size:14px;margin:0}
.sign-card .sc-points,.sign-card .sc-streak,.sign-card .sc-days{font-size:11px;margin:0}
.sign-card .sc-btn{margin-left:auto;padding:8px 20px;font-size:13px}
}
.tag-bar{display:flex;gap:10px;padding:14px 28px;overflow-x:auto;scrollbar-width:none}
.tag-bar::-webkit-scrollbar{display:none}
.tag-chip{flex-shrink:0;padding:7px 16px;border-radius:20px;background:#fff;font-size:13px;color:#555;cursor:pointer;transition:.2s;white-space:nowrap;border:1px solid #eee}
.tag-chip.on{background:linear-gradient(135deg,#ff2e4d,#ff6b81);color:#fff;border-color:transparent;font-weight:600}
/* 封面标题叠加 */
.cover-wrap{position:relative;background:#f0f0f0}
.cover-wrap.noimg{aspect-ratio:1;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#fff0f2,#ffe3e8)}
.cover-wrap .cover-title{position:absolute;left:0;right:0;bottom:0;padding:24px 14px 12px;font-size:14px;font-weight:600;color:#fff;line-height:1.4;background:linear-gradient(transparent,rgba(0,0,0,.55));text-shadow:0 1px 2px rgba(0,0,0,.3)}
.cover-wrap.noimg .cover-title{position:static;background:none;color:#ff2e4d;padding:20px;text-align:center;text-shadow:none}
.ptag{display:inline-block;font-size:11px;color:#1890ff;background:#eef6ff;padding:2px 8px;border-radius:6px;margin-bottom:8px}
.sign-banner{margin:0 28px 16px;background:linear-gradient(135deg,#ff2e4d,#ff6b81);border-radius:12px;padding:14px 24px;display:flex;align-items:center}
/* 消息红点 */
.nav-badge{position:absolute;top:-4px;right:-8px;min-width:16px;height:16px;line-height:16px;background:#ff2e4d;color:#fff;border-radius:8px;font-size:10px;text-align:center;padding:0 4px}
.side-nav .item .ico{position:relative;display:inline-block}
.sign-banner-inner{display:flex;align-items:center;width:100%;gap:12px}
.sign-ico{font-size:22px}
.sign-text{flex:1;color:#fff;font-size:14px;font-weight:500}
.sign-btn{background:#fff;color:#ff2e4d;border:none;padding:8px 20px;border-radius:20px;font-size:13px;font-weight:600;cursor:pointer;transition:opacity .2s}
.sign-btn:hover{opacity:.9}

/* ===== 深色模式 ===== */
body.dark{--bg:#0f0f12;--card:#1c1c20;--t1:#eee;--t2:#bbb;--t3:#888;--line:#2a2a30}
body.dark{background:var(--bg);color:var(--t1)}
body.dark .sidebar,body.dark .content,body.dark .box,body.dark .gcard,body.dark .menu,body.dark .profile,body.dark .fav-item,body.dark .note-card,body.dark .profile-hd,body.dark .upd-box,body.dark .mobile-tab,body.dark .dt-card,body.dark .dt-input,body.dark .session,body.dark .chat-wrap{background:var(--card);color:var(--t1)}
body.dark .side-nav .item:hover,body.dark .menu-item:hover,body.dark .set-item:hover,body.dark .session:hover,body.dark .side-user:hover{background:#26262c}
body.dark .topbar{background:rgba(28,28,32,.92);border-bottom-color:var(--line)}
body.dark .post-card{background:var(--card)}
body.dark .ipt,body.dark .form-item input,body.dark .form-item textarea,body.dark .form-item select,body.dark input,body.dark textarea,body.dark select{background:#26262c;color:var(--t1);border-color:#3a3a42}
body.dark .post-card .body,body.dark .dt-content{color:var(--t2)}
body.dark .dt-content pre{background:#26262c}
body.dark .msg-row .bubble{background:#26262c}
body.dark .tag-chip{background:var(--card);border-color:#3a3a42}
body.dark .search{background:#26262c}
body.dark img{opacity:.92}
body.dark .lightbox{background:rgba(0,0,0,.94)}
.theme-toggle{cursor:pointer;user-select:none}