/* UUTV 直播平台 · 公共站点样式 */
:root{
  --bg:#0b0f19; --bg2:#0e1424; --surface:#121a2c; --surface2:#16203a; --line:#1f2a44;
  --text:#e9edf6; --muted:#8a94b0; --dim:#5d6a8c;
  --acc:#ff4d5e; --acc2:#ff7a45; --ok:#2dd4a7; --blue:#5b8cff;
  --radius:14px;
  --grad-live:linear-gradient(135deg,#ff4d5e,#ff7a45);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.container.narrow{max-width:760px}

/* ---------- 页头 ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(11,15,25,.86);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:26px;height:62px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800}
.logo-mark{background:var(--grad-live);-webkit-background-clip:text;background-clip:text;color:transparent;font-size:22px;letter-spacing:.5px}
.logo-name{font-size:15px;color:var(--text)}
.nav{display:flex;gap:22px;flex:1}
.nav a{color:var(--muted);font-size:14px;transition:color .15s;position:relative;padding:6px 0}
.nav a:hover,.nav a.active{color:var(--text)}
.nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--grad-live);border-radius:2px}
.btn-nav{background:var(--surface2);border:1px solid var(--line);color:var(--text);font-size:13px;padding:8px 16px;border-radius:9px;transition:.15s}
.btn-nav:hover{border-color:var(--acc);color:#fff}
.announce{background:linear-gradient(90deg,rgba(255,77,94,.16),rgba(255,122,69,.16));border-top:1px solid var(--line);font-size:13px;color:#ffd9c2;padding:7px 0;text-align:center}

/* ---------- Hero ---------- */
.hero{background:radial-gradient(900px 420px at 80% -20%,#2a1a33 0%,transparent 55%),radial-gradient(700px 400px at 10% 110%,#12203c 0%,transparent 55%);padding:84px 0 70px;text-align:center;border-bottom:1px solid var(--line)}
.hero h1{font-size:42px;font-weight:800;letter-spacing:1px;background:linear-gradient(120deg,#fff,#ffb3a0);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:var(--muted);margin-top:12px;font-size:16px}
.hero-actions{display:flex;gap:14px;justify-content:center;margin-top:30px}
.hero-stats{display:flex;gap:40px;justify-content:center;margin-top:38px;color:var(--muted);font-size:13px}
.hero-stats b{display:block;color:#fff;font-size:24px;font-weight:800}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:11px 24px;border-radius:10px;font-size:14px;font-weight:600;border:0;cursor:pointer;transition:.15s;white-space:nowrap}
.btn-primary{background:var(--grad-live);color:#fff;box-shadow:0 6px 18px rgba(255,77,94,.28)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--muted)}
.btn-danger{background:rgba(255,77,94,.14);color:#ff7584;border:1px solid rgba(255,77,94,.35)}
.btn-danger:hover{background:rgba(255,77,94,.24)}
.btn-outline{background:transparent;border:1px solid var(--line);color:var(--muted)}
.btn-xs{padding:5px 12px;font-size:12px;border-radius:8px}

/* ---------- 区块 ---------- */
.section{padding:46px 0}
.section-alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px;flex-wrap:wrap}
.section-head h2{font-size:22px;font-weight:700;display:flex;align-items:center;gap:10px}
.section-head .sub{color:var(--muted);font-size:13px}
.more{color:var(--acc);font-size:13px}
.dot-live{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--acc);box-shadow:0 0 0 0 rgba(255,77,94,.6);animation:pulse 1.6s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(255,77,94,.55)}70%{box-shadow:0 0 0 9px rgba(255,77,94,0)}100%{box-shadow:0 0 0 0 rgba(255,77,94,0)}}

/* ---------- 直播间卡片 ---------- */
.room-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}
.room-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .18s,border-color .18s}
.room-card:hover{transform:translateY(-3px);border-color:#33446e}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0a0f1d}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.room-card:hover .card-cover img{transform:scale(1.04)}
.card-cover .badge{position:absolute;left:10px;top:10px;font-size:11px}
.viewers{position:absolute;right:10px;top:10px;background:rgba(0,0,0,.55);backdrop-filter:blur(6px);font-size:11px;padding:4px 9px;border-radius:20px;display:flex;align-items:center;gap:6px}
.img-tag{position:absolute;left:10px;bottom:10px;background:rgba(11,15,25,.7);backdrop-filter:blur(6px);border:1px solid rgba(91,140,255,.5);color:#9db9ff;font-size:10px;padding:3px 9px;border-radius:20px}
.card-body{padding:13px 15px 15px}
.card-body h3{font-size:15px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card-body p{color:var(--muted);font-size:12px;margin-top:5px;display:flex;gap:6px}
.card-body .sep{color:var(--dim)}

.grad{display:flex;align-items:center;justify-content:center;width:100%;height:100%;color:rgba(255,255,255,.85);font-size:30px}
.grad b{font-size:26px;font-weight:800;color:rgba(255,255,255,.75)}
.grad-0{background:linear-gradient(135deg,#3b2f66,#7c4dd8)}
.grad-1{background:linear-gradient(135deg,#b3403c,#ff8a5c)}
.grad-2{background:linear-gradient(135deg,#1c4a6e,#3f9bd8)}
.grad-3{background:linear-gradient(135deg,#3d5a1e,#8ec94b)}
.grad-4{background:linear-gradient(135deg,#6e2a52,#d84d8a)}
.grad-5{background:linear-gradient(135deg,#2c3a66,#5b8cff)}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:5px;font-size:11px;font-weight:600;padding:4px 10px;border-radius:20px;letter-spacing:.3px}
.badge-live{background:var(--grad-live);color:#fff;animation:badgePulse 2s infinite}
.badge-scheduled{background:rgba(91,140,255,.15);color:#9db9ff;border:1px solid rgba(91,140,255,.4)}
.badge-ended{background:rgba(138,148,176,.12);color:var(--muted);border:1px solid var(--line)}
@keyframes badgePulse{0%,100%{box-shadow:0 0 0 0 rgba(255,77,94,.5)}50%{box-shadow:0 0 0 6px rgba(255,77,94,0)}}

/* ---------- 分类条 / 搜索 ---------- */
.cat-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:24px}
.chip{padding:7px 16px;border-radius:20px;border:1px solid var(--line);color:var(--muted);font-size:13px;transition:.15s}
.chip:hover{color:#fff;border-color:var(--muted)}
.chip.on{background:var(--grad-live);color:#fff;border-color:transparent;font-weight:600}
.search{display:flex;gap:8px}
.search input{background:var(--surface);border:1px solid var(--line);border-radius:9px;color:var(--text);padding:9px 14px;font-size:13px;width:220px;outline:none}
.search input:focus{border-color:var(--acc)}
.search button{background:var(--surface2);border:1px solid var(--line);color:var(--text);border-radius:9px;padding:0 16px;cursor:pointer}
.search button:hover{border-color:var(--acc)}
.empty{padding:60px 20px;text-align:center;color:var(--dim);font-size:14px;background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius)}

/* ---------- 图片直播房间 ---------- */
.photo-room-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px}
.photo-room{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.18s}
.photo-room:hover{transform:translateY(-3px);border-color:#33446e}
.photo-room-cover{position:relative;aspect-ratio:4/3;overflow:hidden}
.photo-room-cover img{width:100%;height:100%;object-fit:cover}
.photo-count{position:absolute;right:10px;bottom:10px;background:rgba(0,0,0,.6);backdrop-filter:blur(6px);font-size:11px;padding:4px 10px;border-radius:20px}
.photo-room-info{padding:12px 14px}
.photo-room-info b{font-size:14px;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.photo-room-info span{color:var(--muted);font-size:12px}

/* ---------- 直播间页 ---------- */
.room-wrap{padding:28px 0 60px}
.player-box{position:relative}
.player{position:relative;aspect-ratio:16/9;background:#000;border-radius:16px;overflow:hidden;border:1px solid var(--line);box-shadow:0 18px 50px rgba(0,0,0,.45)}
.player video{width:100%;height:100%;object-fit:contain;background:#000}
.player-mask{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:radial-gradient(600px 300px at 50% 40%,#121c33 0%,#05070d 70%);transition:opacity .3s;z-index:5}
.player-mask.hide{opacity:0;pointer-events:none}
.mask-inner{text-align:center;color:var(--muted)}
.mask-icon{display:block;width:56px;height:56px;margin:0 auto 14px;border-radius:50%;border:2px solid var(--line);position:relative}
.mask-icon::before{content:"";position:absolute;inset:14px;border-radius:50%;border:2px solid var(--acc);border-top-color:transparent;animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.mask-inner b{display:block;color:#fff;font-size:17px}
.mask-inner p{font-size:13px;margin-top:6px}
.player-top{position:absolute;top:12px;left:12px;right:12px;display:flex;justify-content:space-between;align-items:center;z-index:6;pointer-events:none}
.live-viewers{background:rgba(0,0,0,.55);backdrop-filter:blur(8px);font-size:12px;padding:5px 12px;border-radius:20px;display:flex;align-items:center;gap:7px}

.room-main{margin-top:24px}
.room-info h1{font-size:24px;font-weight:700}
.room-meta{display:flex;flex-wrap:wrap;gap:18px;color:var(--muted);font-size:13px;margin-top:10px}
.room-desc{color:#b9c2d8;font-size:14px;margin-top:14px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px}

.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-top:28px}
.tab{background:none;border:0;color:var(--muted);font-size:15px;padding:12px 18px;cursor:pointer;position:relative;font-weight:500}
.tab i{font-style:normal;background:var(--surface2);font-size:11px;padding:1px 8px;border-radius:12px;margin-left:4px}
.tab.on{color:#fff}
.tab.on::after{content:"";position:absolute;left:12px;right:12px;bottom:-1px;height:2px;background:var(--grad-live)}
.tab-panels{padding-top:20px}
.panel{display:none}
.panel.on{display:block}
.tip-bar{font-size:12px;color:var(--dim);margin-bottom:12px}

/* 图片直播流 */
.photo-stream{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px}
.photo-item{position:relative;border-radius:10px;overflow:hidden;cursor:zoom-in;aspect-ratio:1/1;background:var(--surface)}
.photo-item img{width:100%;height:100%;object-fit:cover;transition:transform .25s}
.photo-item:hover img{transform:scale(1.05)}
.photo-item .ph-time{position:absolute;left:8px;bottom:8px;background:rgba(0,0,0,.6);font-size:10px;padding:2px 8px;border-radius:12px}
.photo-item.new{animation:fadeIn .4s}
@keyframes fadeIn{from{opacity:0;transform:scale(.94)}to{opacity:1;transform:scale(1)}}
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.92);z-index:100;display:flex;align-items:center;justify-content:center;padding:30px}
.lightbox img{max-width:92vw;max-height:86vh;border-radius:8px}
.lb-close{position:absolute;top:18px;right:22px;background:none;border:0;color:#fff;font-size:30px;cursor:pointer}

/* 留言 */
.chat-box{height:360px;overflow-y:auto;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:12px}
.chat-msg{display:flex;gap:10px}
.chat-msg .avatar{width:34px;height:34px;border-radius:50%;background:var(--grad-live);display:flex;align-items:center;justify-content:center;font-size:14px;flex:none}
.chat-msg .body{background:var(--surface2);border-radius:12px;padding:9px 13px;max-width:70%}
.chat-msg .body b{font-size:13px;color:#ffb3a6;display:block}
.chat-msg .body p{font-size:14px;word-break:break-all}
.chat-msg .time{font-size:11px;color:var(--dim);margin-top:3px}
.chat-form{display:flex;gap:10px;margin-top:12px}
.chat-form input{flex:1;background:var(--surface);border:1px solid var(--line);border-radius:10px;color:var(--text);padding:11px 14px;font-size:14px;outline:none}
.chat-form input:focus{border-color:var(--acc)}
.chat-form #msgText{flex:2.4}
.chat-form button{background:var(--grad-live);color:#fff;border:0;border-radius:10px;padding:0 26px;font-weight:600;cursor:pointer}

/* ---------- 上传页 ---------- */
.uploader-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:30px}
.uploader-card h2{font-size:20px}
.dropzone{border:2px dashed #33446e;border-radius:14px;padding:44px 20px;text-align:center;margin-top:22px;cursor:pointer;transition:.15s;background:var(--bg2)}
.dropzone:hover,.dropzone.drag{border-color:var(--acc);background:rgba(255,77,94,.06)}
.dz-inner b{display:block;font-size:15px;color:#fff}
.dz-inner span{color:var(--muted);font-size:12px;margin-top:6px;display:block}
.up-progress{margin-top:16px;background:var(--bg2);border:1px solid var(--line);border-radius:10px;padding:12px 16px;font-size:13px}
.up-result{margin-top:18px;display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:10px}
.up-result .up-item{position:relative;border-radius:10px;overflow:hidden;aspect-ratio:1/1}
.up-result img{width:100%;height:100%;object-fit:cover}
.up-result .up-fail{border:1px solid rgba(255,77,94,.5);color:#ff7584;font-size:12px;padding:10px;border-radius:10px;display:flex;align-items:center;justify-content:center;text-align:center}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);padding:34px 0;margin-top:20px}
.footer-brand{display:flex;align-items:center;gap:12px}
.footer-brand p{color:var(--muted);font-size:13px}
.footer-copy{color:var(--dim);font-size:12px;margin-top:10px}

/* ---------- 响应式 ---------- */
@media (max-width:760px){
  .hero h1{font-size:30px}
  .hero-stats{gap:22px}
  .nav{gap:14px}
  .nav a{font-size:13px}
  .logo-name{display:none}
  .room-meta{gap:10px 16px}
  .chat-form{flex-wrap:wrap}
  .chat-form input{flex:1 1 100%}
  .chat-form button{flex:1}
}