/* ============================================
   星河社交 v3.0 - 专业级UI设计系统
   ============================================ */
:root{
  /* 主色调 - 更高级的配色 */
  --primary:#6366f1;
  --primary-light:#818cf8;
  --primary-dark:#4f46e5;
  --danger:#f43f5e;
  --success:#10b981;
  --warning:#f59e0b;
  
  /* 渐变系统 */
  --grad-primary:linear-gradient(135deg,#6366f1 0%,#8b5cf6 50%,#a855f7 100%);
  --grad-warm:linear-gradient(135deg,#f43f5e 0%,#ec4899 100%);
  --grad-cool:linear-gradient(135deg,#3b82f6 0%,#06b6d4 100%);
  --grad-success:linear-gradient(135deg,#10b981 0%,#34d399 100%);
  --grad-sunset:linear-gradient(135deg,#f97316 0%,#fbbf24 100%);
  --grad-night:linear-gradient(160deg,#1e1b4b 0%,#312e81 50%,#1e1b4b 100%);
  --grad-gold:linear-gradient(135deg,#f59e0b 0%,#fbbf24 50%,#f59e0b 100%);
  --grad-rose:linear-gradient(135deg,#fb7185 0%,#f472b6 100%);
  --grad-ocean:linear-gradient(135deg,#0ea5e9 0%,#6366f1 100%);
  
  /* 阴影系统 */
  --shadow-sm:0 1px 3px rgba(0,0,0,.06),0 1px 2px rgba(0,0,0,.04);
  --shadow:0 4px 6px -1px rgba(0,0,0,.07),0 2px 4px -2px rgba(0,0,0,.05);
  --shadow-md:0 10px 15px -3px rgba(0,0,0,.08),0 4px 6px -4px rgba(0,0,0,.04);
  --shadow-lg:0 20px 25px -5px rgba(0,0,0,.1),0 8px 10px -6px rgba(0,0,0,.04);
  --shadow-xl:0 25px 50px -12px rgba(0,0,0,.15);
  --shadow-glow:0 0 20px rgba(99,102,241,.3);
  
  /* 圆角 */
  --radius-sm:8px;
  --radius:14px;
  --radius-lg:20px;
  --radius-full:999px;
  
  /* 间距 */
  --space:16px;
  
  /* 文字 */
  --text-primary:#111827;
  --text-secondary:#6b7280;
  --text-tertiary:#9ca3af;
  --bg-body:#f8fafc;
  --bg-card:#ffffff;
  
  /* 过渡 */
  --ease:cubic-bezier(.4,0,.2,1);
  --trans:.25s var(--ease);

  /* 兼容旧变量名 */
  --g1:var(--grad-primary);
  --g2:var(--grad-warm);
  --g3:var(--grad-cool);
  --g4:var(--grad-success);
  --g5:var(--grad-rose);
  --g6:var(--grad-sunset);
  --g7:var(--grad-ocean);
  --g8:var(--grad-rose);
  --g9:var(--grad-ocean);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,'SF Pro Display','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  background:var(--bg-body);color:var(--text-primary);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  line-height:1.6;
}
a{text-decoration:none;color:inherit;transition:var(--trans)}
img{display:block;max-width:100%}
ul{list-style:none}
button{font-family:inherit}

/* 渐变文字 */
.gt{background:var(--grad-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-weight:800}
.gtw{background:var(--grad-warm);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-weight:800}

/* ===== 顶部导航 ===== */
.topnav{
  position:sticky;top:0;z-index:100;
  background:var(--grad-primary);
  color:#fff;height:54px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 20px;
  box-shadow:0 4px 20px rgba(99,102,241,.25);
  backdrop-filter:blur(20px);
}
.topnav .logo{font-size:18px;font-weight:800;letter-spacing:-.3px;display:flex;align-items:center;gap:6px}
.topnav .links{display:flex;gap:24px}
.topnav .links a{
  color:rgba(255,255,255,.75);font-size:14px;font-weight:500;
  padding:4px 0;position:relative;transition:var(--trans);
}
.topnav .links a:hover,.topnav .links a.on{color:#fff}
.topnav .links a.on::after{
  content:'';position:absolute;bottom:-2px;left:0;right:0;height:2px;
  background:#fff;border-radius:2px;
}
.avatar-s{
  width:34px;height:34px;border-radius:50%;object-fit:cover;
  border:2px solid rgba(255,255,255,.5);
  box-shadow:0 2px 8px rgba(0,0,0,.15);
  transition:var(--trans);
}
.avatar-s:hover{transform:scale(1.08)}

/* ===== 底部TabBar ===== */
.tabbar{
  position:fixed;bottom:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.95);backdrop-filter:blur(20px);
  height:58px;display:flex;
  box-shadow:0 -4px 20px rgba(0,0,0,.06);
  padding-bottom:env(safe-area-inset-bottom);
  border-top:1px solid rgba(0,0,0,.04);
}
.tabbar .ti{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;color:var(--text-tertiary);font-size:10px;font-weight:500;
  cursor:pointer;transition:var(--trans);position:relative;
}
.tabbar .ti .ic{font-size:22px;transition:var(--trans)}
.tabbar .ti:hover{color:var(--primary)}
.tabbar .ti.on{color:var(--primary)}
.tabbar .ti.on .ic{transform:scale(1.1)}
.tabbar .ti.pub .ic{
  width:46px;height:30px;border-radius:10px;
  background:var(--grad-warm);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:22px;
  box-shadow:0 4px 12px rgba(244,63,94,.4);
}

/* ===== 卡片 ===== */
.card{
  background:var(--bg-card);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:18px;margin-bottom:14px;
  transition:var(--trans);
}
.card:hover{box-shadow:var(--shadow-md)}
.ct{
  font-size:16px;font-weight:700;margin-bottom:14px;
  display:flex;justify-content:space-between;align-items:center;
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:10px 24px;border:none;border-radius:var(--radius-full);
  font-size:14px;font-weight:600;cursor:pointer;
  transition:all .2s var(--ease);
  position:relative;overflow:hidden;
}
.btn:active{transform:scale(.97)}
.btn1{
  background:var(--grad-primary);color:#fff;
  box-shadow:0 4px 15px rgba(99,102,241,.35);
}
.btn1:hover{box-shadow:0 6px 20px rgba(99,102,241,.45);transform:translateY(-1px)}
.btn2{
  background:var(--grad-warm);color:#fff;
  box-shadow:0 4px 15px rgba(244,63,94,.3);
}
.btn2:hover{box-shadow:0 6px 20px rgba(244,63,94,.4);transform:translateY(-1px)}
.btno{
  background:transparent;border:2px solid var(--primary);color:var(--primary);
}
.btno:hover{background:var(--primary);color:#fff}
.btns{padding:6px 16px;font-size:12px}
.btnb{width:100%}

/* ===== 输入框 ===== */
.ig{margin-bottom:16px}
.ig label{display:block;font-size:13px;color:var(--text-secondary);margin-bottom:6px;font-weight:500}
.ig input,.ig textarea,.ig select{
  width:100%;padding:12px 16px;
  border:2px solid #e5e7eb;border-radius:var(--radius);
  font-size:14px;outline:none;background:#fff;
  transition:var(--trans);
}
.ig input:focus,.ig textarea:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(99,102,241,.1);
}
.ig input::placeholder{color:var(--text-tertiary)}

/* ===== 标签 ===== */
.tag{
  display:inline-block;padding:3px 10px;border-radius:var(--radius-full);
  font-size:11px;font-weight:600;letter-spacing:.2px;
}
.tagh{background:var(--grad-warm);color:#fff;box-shadow:0 2px 8px rgba(244,63,94,.3)}
.tagv{background:var(--grad-gold);color:#fff;box-shadow:0 2px 8px rgba(245,158,11,.3)}

/* ===== 网格 ===== */
.g2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.g3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.g4{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}

/* ===== 列表项 ===== */
.li{
  display:flex;align-items:center;gap:14px;
  padding:14px 18px;background:#fff;
  border-bottom:1px solid #f3f4f6;
  transition:var(--trans);
}
.li:hover{background:#fafbff}
.li:last-child{border-bottom:none}
.li .liic{
  width:48px;height:48px;border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;font-size:24px;
  flex-shrink:0;
}
.li .lib{flex:1;min-width:0}
.li .lit{font-size:14px;font-weight:600;color:var(--text-primary)}
.li .lid{font-size:12px;color:var(--text-secondary);margin-top:2px}

/* ===== 标签页 ===== */
.tabs{
  display:flex;background:#fff;height:46px;align-items:center;
  gap:28px;padding:0 18px;overflow-x:auto;
  border-bottom:1px solid #f0f0f0;
}
.tabs .tab{
  font-size:14px;color:var(--text-secondary);white-space:nowrap;
  height:100%;display:flex;align-items:center;position:relative;cursor:pointer;
  transition:var(--trans);font-weight:500;
}
.tabs .tab:hover{color:var(--text-primary)}
.tabs .tab.on{color:var(--text-primary);font-weight:700}
.tabs .tab.on::after{
  content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);
  width:24px;height:3px;border-radius:3px;
  background:var(--grad-primary);
}

/* ===== 视频页 ===== */
.vfeed{
  position:fixed;top:54px;bottom:58px;left:0;right:0;
  overflow-y:scroll;scroll-snap-type:y mandatory;
  background:#000;
}
.vitem{
  position:relative;width:100%;height:100%;
  scroll-snap-align:start;display:flex;align-items:center;justify-content:center;
}
.vbg{
  width:100%;height:100%;
  display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;
}
.vov{position:absolute;left:18px;right:75px;bottom:24px;color:#fff;z-index:2}
.vov .un{font-size:16px;font-weight:700;margin-bottom:6px;text-shadow:0 2px 8px rgba(0,0,0,.3)}
.vov .ds{font-size:13px;opacity:.92;line-height:1.5;text-shadow:0 1px 4px rgba(0,0,0,.2)}
.vside{
  position:absolute;right:12px;bottom:90px;
  display:flex;flex-direction:column;gap:20px;align-items:center;z-index:2;
}
.vside .sb{display:flex;flex-direction:column;align-items:center;gap:4px;color:#fff;font-size:11px}
.vside .sb .si{
  width:44px;height:44px;border-radius:50%;
  background:rgba(255,255,255,.18);backdrop-filter:blur(12px);
  display:flex;align-items:center;justify-content:center;font-size:22px;
  transition:var(--trans);cursor:pointer;
}
.vside .sb .si:hover{transform:scale(1.1)}

/* ===== 聊天 ===== */
.chatc{
  position:fixed;top:54px;bottom:58px;left:0;right:0;
  background:var(--bg-body);overflow-y:auto;padding:18px;
}
.cm{display:flex;gap:10px;margin-bottom:16px;animation:fadeInUp .3s var(--ease)}
@keyframes fadeInUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.cm.self{flex-direction:row-reverse}
.cm .bub{
  max-width:72%;padding:10px 14px;border-radius:18px;
  font-size:14px;line-height:1.5;
  box-shadow:var(--shadow-sm);
}
.cm.other .bub{background:#fff;border-top-left-radius:6px}
.cm.self .bub{background:var(--grad-primary);color:#fff;border-top-right-radius:6px}
.cm .bub.rp{background:var(--grad-warm);color:#fff;min-width:160px;text-align:center;padding:14px;border-radius:14px}
.cm .bub.gf{background:var(--grad-gold);color:#fff;text-align:center;min-width:120px;border-radius:14px}
.cib{
  position:fixed;bottom:58px;left:0;right:0;
  background:rgba(255,255,255,.95);backdrop-filter:blur(20px);
  padding:8px 12px;display:flex;gap:8px;align-items:center;
  border-top:1px solid #f0f0f0;z-index:90;
}
.cib input{
  flex:1;border:none;background:#f3f4f6;border-radius:20px;
  padding:9px 16px;font-size:14px;outline:none;
  transition:var(--trans);
}
.cib input:focus{background:#fff;box-shadow:0 0 0 3px rgba(99,102,241,.1)}
.cib .ab{
  width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:20px;
  cursor:pointer;transition:var(--trans);
}
.cib .ab:hover{background:#f3f4f6}

/* ===== 钱包 ===== */
.wallet-card{
  margin:16px;padding:26px;border-radius:var(--radius-lg);
  background:var(--grad-night);color:#fff;
  box-shadow:0 15px 35px rgba(30,27,75,.4);
  position:relative;overflow:hidden;
}
.wallet-card::before{
  content:'';position:absolute;top:-50%;right:-30%;
  width:200px;height:200px;border-radius:50%;
  background:radial-gradient(circle,rgba(99,102,241,.3),transparent);
}
.wallet-card .bl{font-size:13px;opacity:.7}
.wallet-card .bv{font-size:38px;font-weight:800;margin:6px 0;letter-spacing:-.5px}
.wallet-card .wa{display:flex;gap:12px;margin-top:18px;position:relative;z-index:1}
.wallet-card .wa .wab{
  flex:1;padding:11px;border-radius:12px;
  background:rgba(255,255,255,.15);backdrop-filter:blur(10px);
  text-align:center;font-size:13px;cursor:pointer;transition:var(--trans);
}
.wallet-card .wa .wab:hover{background:rgba(255,255,255,.25)}

/* ===== 商品卡片 ===== */
.pcard{
  background:#fff;border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);transition:var(--trans);
}
.pcard:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.pcard .pi{
  width:100%;aspect-ratio:1;
  display:flex;align-items:center;justify-content:center;font-size:48px;
}
.pcard .pinfo{padding:12px}
.pcard .pn{
  font-size:13px;font-weight:600;line-height:1.4;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.pcard .pp{color:var(--danger);font-weight:700;font-size:16px;margin-top:6px}
.pcard .pp .po{color:#d1d5db;font-size:11px;font-weight:400;text-decoration:line-through;margin-left:4px}

/* ===== 礼物网格 ===== */
.gg{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;padding:16px}
.gi{
  background:#fff;border-radius:var(--radius);padding:16px 8px;
  text-align:center;cursor:pointer;border:2px solid transparent;
  transition:var(--trans);
}
.gi:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.gi.on{border-color:var(--primary);background:linear-gradient(135deg,#eef2ff,#fff);box-shadow:0 0 0 3px rgba(99,102,241,.1)}
.gi .gii{font-size:38px;transition:var(--trans)}
.gi:hover .gii{transform:scale(1.15)}
.gi .gin{font-size:11px;margin-top:6px;font-weight:500}
.gi .gip{font-size:11px;color:#f59e0b;font-weight:700}

/* ===== 游戏卡片 ===== */
.gmcard{
  border-radius:var(--radius);aspect-ratio:4/3;cursor:pointer;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  color:#fff;transition:var(--trans);
  position:relative;overflow:hidden;
}
.gmcard::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,transparent,rgba(0,0,0,.15));
}
.gmcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.gmcard .gmi{font-size:48px;position:relative;z-index:1;filter:drop-shadow(0 4px 8px rgba(0,0,0,.2))}
.gmcard .gmn{font-size:15px;font-weight:700;margin-top:8px;position:relative;z-index:1}
.gmcard .gmd{font-size:11px;opacity:.85;margin-top:3px;position:relative;z-index:1}

/* ===== 个人中心 ===== */
.ph{
  background:var(--grad-primary);
  padding:44px 20px 60px;color:#fff;text-align:center;
  position:relative;overflow:hidden;
}
.ph::before{
  content:'';position:absolute;top:-40%;left:-20%;
  width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.15),transparent);
}
.ph .avatar-lg{
  width:80px;height:80px;border-radius:50%;object-fit:cover;
  border:3px solid rgba(255,255,255,.4);
  box-shadow:0 8px 24px rgba(0,0,0,.2);
  position:relative;z-index:1;
}
.ph .un{font-size:20px;font-weight:800;margin-top:12px;position:relative;z-index:1}
.ph .bo{font-size:13px;opacity:.85;margin-top:6px;position:relative;z-index:1}
.pstats{
  display:flex;background:#fff;margin:-40px 16px 0;
  border-radius:var(--radius);padding:16px 0;
  box-shadow:var(--shadow-lg);position:relative;z-index:2;
}
.pstats .st{flex:1;text-align:center;transition:var(--trans)}
.pstats .st:hover{transform:scale(1.05)}
.pstats .st .num{font-size:18px;font-weight:800}
.pstats .st .lb{font-size:11px;color:var(--text-tertiary);margin-top:2px}

/* ===== 后台管理 ===== */
.adm-wrap{display:flex;min-height:100vh}
.adm-side{
  width:220px;background:var(--grad-night);
  padding:24px 0;flex-shrink:0;
}
.adm-side h3{
  color:#fff;text-align:center;margin-bottom:24px;
  font-size:18px;font-weight:800;
}
.adm-side a{
  display:block;color:rgba(255,255,255,.65);
  padding:12px 24px;text-decoration:none;font-size:14px;
  border-left:3px solid transparent;transition:var(--trans);
}
.adm-side a:hover{color:#fff;background:rgba(255,255,255,.06)}
.adm-side a.on{
  color:#fff;background:rgba(99,102,241,.15);
  border-left-color:var(--primary);
}
.adm-main{flex:1;padding:28px;background:#f4f6fb}
.adm-card{
  background:#fff;padding:22px;border-radius:var(--radius);
  margin-bottom:16px;box-shadow:var(--shadow);
}
.adm-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}
.adm-stat{
  background:#fff;border-radius:var(--radius);padding:20px;
  text-align:center;box-shadow:var(--shadow);
  transition:var(--trans);
}
.adm-stat:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.adm-stat .n{font-size:28px;font-weight:800}
.adm-stat .l{font-size:12px;color:var(--text-tertiary);margin-top:4px}
table.tbl{width:100%;border-collapse:collapse;font-size:13px}
table.tbl th{
  background:#f8faff;padding:12px 14px;text-align:left;
  font-weight:600;color:var(--text-secondary);
  border-bottom:2px solid #e5e7eb;
}
table.tbl td{padding:12px 14px;border-bottom:1px solid #f3f4f6}
table.tbl tr:hover td{background:#fafbff}

/* ===== 动画 ===== */
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes slideUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.05)}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.animate-in{animation:slideUp .4s var(--ease)}
.pulse{animation:pulse 2s infinite}
.float{animation:float 3s ease-in-out infinite}

/* ===== 响应式 ===== */
.main{padding-bottom:80px}
@media(max-width:768px){
  .topnav .links{display:none}
  .gg{grid-template-columns:repeat(3,1fr)}
  .adm-wrap{flex-direction:column}
  .adm-side{width:100%;display:flex;overflow-x:auto;padding:0}
  .adm-side h3{display:none}
  .adm-side a{white-space:nowrap;border-left:none;border-bottom:3px solid transparent;padding:14px 16px}
  .adm-side a.on{border-bottom-color:var(--primary)}
  .adm-stats{grid-template-columns:repeat(2,1fr)}
}
@media(min-width:769px){
  .main{max-width:720px;margin:0 auto;padding:20px 16px 80px}
  .tabbar{max-width:720px;left:50%;transform:translateX(-50%);border-radius:16px 16px 0 0}
  .vfeed{top:54px}
}
.hidden{display:none!important}
.mt10{margin-top:10px}.mt20{margin-top:20px}
.tc{text-align:center}