/* =====================================================
   拾光聊天室 · 全局样式
   移动优先，桌面端自适应
   ===================================================== */
:root{
  --bg:#f4f5f9;
  --card:#ffffff;
  --line:#e8eaf1;
  --txt:#23252f;
  --txt2:#6b7085;
  --txt3:#a3a7ba;
  --pri:#5b6cf0;
  --pri2:#8a5bf0;
  --pri-soft:#eef0fe;
  --gold:#f0a13c;
  --gold-soft:#fdf3e3;
  --green:#2fbf71;
  --red:#f0564a;
  --radius:14px;
  --shadow:0 2px 12px rgba(35,37,47,.06);
  --shadow-lg:0 12px 36px rgba(35,37,47,.12);
  --grad:linear-gradient(135deg,#5b6cf0,#8a5bf0);
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent;}
html{-webkit-text-size-adjust:100%;}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","WenQuanYi Micro Hei",sans-serif;
  background:var(--bg);color:var(--txt);font-size:15px;line-height:1.6;
  min-height:100vh;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button,input,textarea,select{font-family:inherit;font-size:inherit;outline:none;}
::-webkit-scrollbar{width:6px;height:6px;}
::-webkit-scrollbar-thumb{background:#d3d6e2;border-radius:3px;}

/* ---------- 通用 ---------- */
.container{max-width:720px;margin:0 auto;padding:0 14px;}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  border:none;cursor:pointer;border-radius:11px;padding:11px 20px;
  font-size:14px;font-weight:600;transition:.18s;user-select:none;white-space:nowrap;
}
.btn-pri{background:var(--grad);color:#fff;}
.btn-pri:hover{transform:translateY(-1px);box-shadow:0 8px 18px rgba(91,108,240,.35);}
.btn-ghost{background:var(--pri-soft);color:var(--pri);}
.btn-line{background:#fff;border:1.5px solid var(--line);color:var(--txt2);}
.btn-danger{background:#fdeeec;color:var(--red);}
.btn-block{width:100%;}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none!important;}
.tag{display:inline-flex;align-items:center;gap:4px;font-size:12px;padding:3px 9px;border-radius:20px;font-weight:500;}
.tag-gold{background:var(--gold-soft);color:#c77b17;}
.tag-pri{background:var(--pri-soft);color:var(--pri);}
.tag-green{background:#e7f8ee;color:#1f9d57;}
.tag-red{background:#fdeeec;color:var(--red);}
.tag-gray{background:#f0f1f6;color:var(--txt2);}
.empty{text-align:center;color:var(--txt3);padding:48px 0;font-size:14px;}
.empty svg{opacity:.4;margin-bottom:10px;}

/* ---------- 顶部导航 ---------- */
.navbar{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.86);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.navbar .inner{max-width:960px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 16px;height:56px;}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;font-size:17px;color:var(--txt);}
.brand .brand-name{color:var(--txt);}
.brand .mark{width:32px;height:32px;border-radius:9px;background:var(--grad);display:flex;align-items:center;justify-content:center;flex:none;color:#fff;}
.nav-actions{display:flex;align-items:center;gap:10px;}
label.icon-btn{margin:0;}
.icon-btn{width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--txt2);background:transparent;border:none;cursor:pointer;transition:.18s;}
.icon-btn:hover{background:var(--pri-soft);color:var(--pri);}
.avatar{width:34px;height:34px;border-radius:50%;object-fit:cover;background:var(--pri-soft);}

/* ---------- 表单 ---------- */
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--txt2);margin-bottom:7px;font-weight:500;}
.input,.textarea,.select{
  width:100%;padding:11px 14px;border:1.5px solid var(--line);border-radius:11px;
  font-size:14px;background:#fafbfd;transition:.18s;color:var(--txt);
}
.input:focus,.textarea:focus,.select:focus{border-color:var(--pri);background:#fff;box-shadow:0 0 0 3px rgba(91,108,240,.12);}
.textarea{resize:vertical;min-height:80px;}
.captcha-row{display:flex;gap:10px;align-items:center;}
.captcha-row .input{flex:1;min-width:0;}
.captcha-img{width:140px;height:48px;border-radius:11px;cursor:pointer;background:#f0f1f6;flex:none;object-fit:cover;border:1.5px solid var(--line);}
.icon-btn .vip-ico{width:20px;height:20px;object-fit:contain;display:block;}

/* ---------- 登录/注册/激活 ---------- */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;
  background:linear-gradient(160deg,#20233a 0%,#372a52 100%);}
.auth-card{width:100%;max-width:400px;background:#fff;border-radius:20px;padding:34px 30px;box-shadow:0 24px 60px rgba(0,0,0,.35);}
.auth-logo{text-align:center;margin-bottom:26px;}
.auth-logo .mark{width:56px;height:56px;border-radius:16px;background:var(--grad);margin:0 auto 12px;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 26px rgba(91,108,240,.4);color:#fff;}
.auth-logo .mark svg{color:#fff;stroke:#fff;}
.auth-logo h1{font-size:21px;font-weight:700;}
.auth-logo p{font-size:13px;color:var(--txt3);margin-top:5px;}
.auth-foot{text-align:center;font-size:13px;color:var(--txt3);margin-top:18px;}
.auth-foot a{color:var(--pri);font-weight:500;}
.alert{padding:11px 14px;border-radius:10px;font-size:13px;margin-bottom:16px;}
.alert-err{background:#fdeeec;color:#c7372d;border:1px solid #fbd6d2;}
.alert-ok{background:#e7f8ee;color:#1f7a45;border:1px solid #c3ecd3;}

/* ---------- 聊天消息流 ---------- */
.feed{display:flex;flex-direction:column;gap:18px;padding:14px 0 90px;}
.load-earlier{align-self:center;border:1.5px solid var(--pri);background:var(--pri-soft);color:var(--pri);font-size:13px;font-weight:700;padding:8px 18px;cursor:pointer;border-radius:20px;margin:4px 0 6px;box-shadow:0 2px 8px rgba(91,108,240,.16);}
.load-earlier:hover{background:var(--pri);color:#fff;}
.pin-bar{position:sticky;top:56px;z-index:45;background:#fff6df;border:1px solid #f0d89a;border-radius:10px;margin-top:12px;overflow:hidden;box-shadow:0 4px 12px rgba(200,140,20,.12);}
.pin-item{display:flex;align-items:center;gap:8px;padding:9px 12px;font-size:13px;color:#8a6414;cursor:pointer;border:none;border-bottom:1px solid #f3e0b8;background:transparent;width:100%;text-align:left;outline:none;box-shadow:none;-webkit-appearance:none;appearance:none;}
.pin-item:last-child{border-bottom:none;}
.pin-item .pin-txt{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.pin-item svg{flex:none;color:#d4a017;}
.chat-row{display:flex;align-items:flex-start;gap:8px;}
.chat-row .avatar{width:40px;height:40px;flex:none;}
.chat-main{max-width:76%;min-width:0;display:flex;flex-direction:column;align-items:flex-start;gap:4px;}
.chat-name{font-size:12px;color:var(--txt2);font-weight:600;display:flex;align-items:center;gap:4px;padding:0 2px;}
.bubble{background:#fff;color:var(--txt);border-radius:4px 16px 16px 16px;padding:10px 12px 8px;box-shadow:0 1px 4px rgba(20,24,40,.06);border:1px solid #e6e8f0;max-width:100%;}
.chat-row.mine{flex-direction:row-reverse;}
.chat-row.mine .chat-main{align-items:flex-end;}
.chat-row.mine .bubble{background:#cfe8ff;color:#191919;border-radius:16px 4px 16px 16px;border-color:#b5d8f7;}
.chat-row.mine .msg-text,.chat-row.mine .caption{color:#191919;}
.chat-stamp{text-align:center;font-size:12px;color:var(--txt3);padding:4px 0 2px;}
.chat-ops{display:flex;align-items:center;gap:8px;padding:0 2px;}
.chat-row.mine .chat-ops{flex-direction:row-reverse;}
.chat-ops .act{background:none;border:none;padding:0;cursor:pointer;color:var(--txt3);display:inline-flex;}
.chat-ops .act:hover{color:var(--pri);}
.chat-row.flash .bubble{outline:2px solid var(--gold);}
.msg-text{font-size:15px;line-height:1.65;word-break:break-word;white-space:pre-wrap;}
.msg-media{margin-top:8px;border-radius:10px;overflow:hidden;background:#0f1018;max-width:240px;}
.msg-media img{width:100%;max-height:280px;object-fit:cover;cursor:zoom-in;}
.msg-media video{width:100%;max-height:240px;display:block;background:#000;}
.msg-media-single{max-width:200px;background:transparent;}
.msg-media-single img{width:auto;max-width:200px;max-height:260px;height:auto;object-fit:contain;display:block;border-radius:10px;background:#f4f5f8;}
.img-grid{margin-top:8px;display:grid;gap:3px;width:216px;max-width:100%;}
.img-grid.n-2,.img-grid.n-4{grid-template-columns:repeat(2,1fr);width:148px;}
.img-grid.n-3,.img-grid.n-5,.img-grid.n-6,.img-grid.n-7,.img-grid.n-8,.img-grid.n-9{grid-template-columns:repeat(3,1fr);}
.img-grid-2{width:100%;max-width:100%;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;}
.img-grid-2.n-2,.img-grid-2.n-3,.img-grid-2.n-4,.img-grid-2.n-5,.img-grid-2.n-6,.img-grid-2.n-7,.img-grid-2.n-8,.img-grid-2.n-9{width:100%;grid-template-columns:repeat(2,minmax(0,1fr));}
.img-cell{aspect-ratio:1;overflow:hidden;border-radius:6px;background:#f0f1f5;}
.img-grid-2 .img-cell{aspect-ratio:1 / 1;width:100%;}
.img-cell img,.img-cell video,.img-cell .v-cover{width:100%;height:100%;object-fit:cover;cursor:zoom-in;display:block;}
.img-cell.media-play .v-cover,.img-cell.media-play video{max-height:none;}
.msg-imgtext{width:100%;}
.msg-imgtext .caption{padding:8px 0 0;font-size:15px;line-height:1.65;white-space:pre-wrap;}
.composer .preview{max-width:720px;margin:0 auto 8px;display:none;}
.preview-list{display:flex;flex-wrap:wrap;gap:6px;align-items:flex-start;}
.preview-item{position:relative;width:64px;height:64px;border-radius:8px;overflow:hidden;background:#f0f1f5;flex:none;}
.preview-item img,.preview-item video{width:100%;height:100%;object-fit:cover;display:block;}
.preview-item .rm{position:absolute;top:2px;right:2px;width:18px;height:18px;border-radius:50%;background:rgba(0,0,0,.6);color:#fff;font-size:12px;line-height:18px;text-align:center;cursor:pointer;z-index:2;}
.preview-item.media-play:after{width:28px;height:28px;}
.preview-item.media-play:before{border-width:5px 0 5px 8px;margin-left:1px;}
.preview-item .v-dur{display:none;}
.cmt-btn{display:inline-flex;align-items:center;gap:5px;margin-top:8px;padding:4px 10px;border-radius:20px;font-size:12px;font-weight:600;background:#eef0fe;color:var(--pri);}
.chat-row.mine .cmt-btn{background:#fff;color:var(--pri);}
.cmt-btn:hover{filter:brightness(.96);}
.top-badge{font-size:11px;color:var(--gold);background:var(--gold-soft);padding:1px 7px;border-radius:6px;}

/* ---------- 发布框 ---------- */
.composer{position:fixed;left:0;right:0;bottom:0;z-index:40;background:#fff;border-top:1px solid var(--line);padding:10px 14px calc(10px + env(safe-area-inset-bottom));}
.composer .inner{max-width:720px;margin:0 auto;display:flex;align-items:flex-end;gap:8px;}
.composer .tools{display:flex;gap:2px;}
.composer textarea{flex:1;border:1.5px solid var(--line);border-radius:20px;padding:9px 14px;resize:none;max-height:110px;background:#fafbfd;font-size:14px;}
.composer textarea:focus{border-color:var(--pri);background:#fff;}
.composer .send{width:40px;height:40px;border-radius:50%;background:var(--grad);color:#fff;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;flex:none;}
.pick-native{display:block;width:100%;height:48px;font-size:16px;}

/* ---------- 评论区 ---------- */
.comment{display:flex;gap:10px;padding:14px 0;border-bottom:1px solid var(--line);}
.comment:last-child{border-bottom:none;}
.comment .avatar{width:36px;height:36px;flex:none;}
.comment .c-body{flex:1;min-width:0;}
.comment .c-name{font-size:13px;font-weight:600;display:flex;align-items:center;gap:6px;}
.comment .c-time{font-size:11px;color:var(--txt3);font-weight:400;}
.comment .c-text{font-size:14px;margin-top:3px;word-break:break-word;white-space:pre-wrap;}
.comment .c-media{margin-top:8px;border-radius:10px;overflow:hidden;max-width:180px;}
.comment .c-media img,.comment .c-media video{width:100%;display:block;}
.comment .img-grid{margin-top:8px;width:168px;grid-template-columns:repeat(3,1fr);}
.comment .img-grid.n-2,.comment .img-grid.n-4{width:116px;grid-template-columns:repeat(2,1fr);}
.comment .img-grid.n-3,.comment .img-grid.n-5,.comment .img-grid.n-6,.comment .img-grid.n-7,.comment .img-grid.n-8,.comment .img-grid.n-9{width:168px;grid-template-columns:repeat(3,1fr);}

/* ---------- 购买/卡密 ---------- */
.plans{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;}
.plan{background:var(--card);border:2px solid var(--line);border-radius:16px;padding:18px 14px;text-align:center;cursor:pointer;transition:.18s;position:relative;}
.plan:hover{border-color:var(--pri);}
.plan.on{border-color:var(--pri);background:var(--pri-soft);}
.plan .p-name{font-weight:600;font-size:15px;}
.plan .p-price{font-size:22px;font-weight:700;color:var(--pri);margin:6px 0;}
.plan .p-price small{font-size:12px;font-weight:400;}
.plan .p-desc{font-size:12px;color:var(--txt3);}
.plan .hot{position:absolute;top:-9px;right:10px;background:var(--grad);color:#fff;font-size:11px;padding:2px 9px;border-radius:10px;}
.pay-ways{display:flex;gap:10px;margin-bottom:14px;}
.pay-way{flex:1;border:1.5px solid var(--line);border-radius:11px;padding:10px;text-align:center;cursor:pointer;font-size:13px;font-weight:500;color:var(--txt2);}
.pay-way.on{border-color:var(--pri);background:var(--pri-soft);color:var(--pri);}
.pay-way input{display:none;}
.avatar-edit{cursor:pointer;position:relative;flex:none;}
.avatar-edit:hover .avatar{opacity:.85;}
.avatar-edit input[type=file]{position:absolute;inset:0;opacity:0;width:100%;height:100%;cursor:pointer;font-size:0;}
.icon-link{background:none;border:none;padding:0;cursor:pointer;vertical-align:middle;display:inline-flex;align-items:center;}

/* ---------- 弹层 ---------- */
.mask{position:fixed;inset:0;background:rgba(20,22,33,.55);z-index:90;display:none;align-items:flex-end;justify-content:center;}
.mask.show{display:flex;}
.sheet{background:#fff;width:100%;max-width:520px;border-radius:20px 20px 0 0;padding:22px 20px calc(22px + env(safe-area-inset-bottom));animation:up .25s ease;}
@keyframes up{from{transform:translateY(40px);opacity:0;}to{transform:translateY(0);opacity:1;}}
.sheet h3{font-size:17px;margin-bottom:16px;display:flex;align-items:center;justify-content:space-between;}
.sheet .close{background:none;border:none;cursor:pointer;color:var(--txt3);}
.popup-mask{position:fixed;inset:0;background:rgba(20,22,33,.55);z-index:130;display:none;align-items:center;justify-content:center;padding:20px;}
.popup-mask.show{display:flex;}
body.vip-locked{overflow:hidden;}
body.vip-locked .navbar,
body.vip-locked .container,
body.vip-locked .composer{filter:blur(4px);pointer-events:none;user-select:none;}
#vipGateMask{z-index:140;background:rgba(20,22,33,.16);backdrop-filter:blur(1px);-webkit-backdrop-filter:blur(1px);}
.v-locked{min-height:160px;background:#1a1c24;}
.popup-box{background:#fff;width:100%;max-width:420px;border-radius:18px;padding:22px 22px 18px;box-shadow:var(--shadow-lg);animation:pop .22s ease;}
@keyframes pop{from{transform:translateY(12px) scale(.98);opacity:0;}to{transform:none;opacity:1;}}
.popup-box h3{font-size:17px;margin-bottom:12px;display:flex;align-items:center;gap:8px;}
.popup-actions{display:flex;gap:10px;margin-top:16px;}
.popup-actions .btn{flex:1;width:auto;}
.popup-body{font-size:14px;color:var(--txt2);line-height:1.75;white-space:pre-wrap;word-break:break-word;max-height:46vh;overflow:auto;margin-bottom:16px;}
.popup-box .btn{width:100%;}

.toast{position:fixed;left:50%;top:18%;transform:translateX(-50%);background:rgba(30,32,45,.92);color:#fff;padding:11px 20px;border-radius:12px;font-size:14px;z-index:200;opacity:0;pointer-events:none;transition:.25s;}
.toast.show{opacity:1;}

.lb{position:fixed;inset:0;background:rgba(0,0,0,.92);z-index:300;display:none;align-items:center;justify-content:center;}
.lb.on{display:flex;}
.lb-stage{max-width:100%;max-height:100%;display:flex;align-items:center;justify-content:center;padding:52px 56px 48px;}
.lb-stage img,.lb-stage video{max-width:min(100vw - 32px,900px);max-height:calc(100vh - 100px);border-radius:8px;background:#000;}
.lb-nav,.lb-x{position:absolute;border:none;background:rgba(255,255,255,.16);color:#fff;width:44px;height:44px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:2;}
.lb-nav:before,.lb-x:before{font-size:28px;line-height:1;pointer-events:none;}
.lb-prev{left:10px;top:50%;transform:translateY(-50%);}
.lb-next{right:10px;top:50%;transform:translateY(-50%);}
.lb-prev:before{content:'‹';}
.lb-next:before{content:'›';}
.lb-x{top:12px;right:12px;width:40px;height:40px;}
.lb-x:before{content:'×';font-size:26px;}
.lb-nav.hide{display:none;}
.lb-count{position:absolute;bottom:14px;left:50%;transform:translateX(-50%);color:#fff;font-size:13px;letter-spacing:.04em;}
.media-play{position:relative;cursor:pointer;}
.media-play video,.media-play .v-cover{width:100%;display:block;background:#000;cursor:pointer;}
.media-play .v-cover{max-height:240px;object-fit:cover;}
.media-play:after{content:'';position:absolute;left:50%;top:50%;width:46px;height:46px;margin:0;border:none;border-radius:50%;background:rgba(0,0,0,.48);transform:translate(-50%,-50%);pointer-events:none;box-shadow:0 2px 10px rgba(0,0,0,.25);z-index:1;}
.media-play:before{content:'';position:absolute;left:50%;top:50%;width:0;height:0;border-style:solid;border-width:8px 0 8px 14px;border-color:transparent transparent transparent #fff;transform:translate(-42%,-50%);pointer-events:none;z-index:2;}
.v-dur{position:absolute;right:6px;bottom:6px;z-index:1;background:rgba(0,0,0,.62);color:#fff;font-size:11px;line-height:1;padding:3px 6px;border-radius:4px;pointer-events:none;font-variant-numeric:tabular-nums;}
.v-dur:empty{display:none;}
.comment .media-play .v-cover{max-height:180px;}
.comment .media-play:after{width:36px;height:36px;}
.comment .media-play:before{border-width:6px 0 6px 11px;}
.cover-row{display:flex;gap:8px;margin-top:8px;}
.up-mask{position:fixed;inset:0;background:rgba(20,22,33,.45);z-index:280;display:none;align-items:center;justify-content:center;}
.up-mask.on{display:flex;}
.up-box{background:#fff;border-radius:16px;padding:22px 28px;text-align:center;box-shadow:var(--shadow-lg);min-width:160px;}
.up-box p{font-size:13px;color:var(--txt2);margin-top:2px;}
.spinner{width:36px;height:36px;border:3px solid #e8eaf1;border-top-color:var(--pri);border-radius:50%;animation:spin .8s linear infinite;margin:0 auto 10px;}
@keyframes spin{to{transform:rotate(360deg);}}

/* ---------- 桌面端 ---------- */
@media (min-width:768px){
  .container{padding:0 20px;}
  .plans{grid-template-columns:repeat(4,1fr);}
  .composer{left:50%;right:auto;transform:translateX(-50%);width:720px;border-radius:16px 16px 0 0;border:1px solid var(--line);border-bottom:none;}
  .chat-main{max-width:62%;}
  .msg-media video{max-height:280px;}
  .msg-media-single img{max-width:220px;max-height:280px;}
}