/* ============ 主题变量 ============ */
:root{
  --bg:#f6f7fb; --card:#fff; --text:#1f2430; --muted:#8a90a3;
  --primary:#ff6b9d; --primary-deep:#f2518c; --primary-soft:#ffe3ee;
  --border:#eef0f6; --danger:#ef4444; --ok:#10b981;
  --shadow:0 6px 20px rgba(31,36,48,.06);
  --radius:16px;
  --nav-h:56px;
}
[data-theme="dark"]{
  --bg:#10131a; --card:#1a1f2a; --text:#e7e9f0; --muted:#7c8295;
  --primary-soft:#3a2133; --border:#2a3040; --shadow:0 6px 24px rgba(0,0,0,.4);
}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--text);line-height:1.6;
  -webkit-tap-highlight-color:transparent;
}
body.locked{overflow:hidden}
img{max-width:100%}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
*{scrollbar-width:thin}

/* ============ 布局 ============ */
.container{max-width:720px;margin:0 auto;padding:0 14px}
.main-wrap{padding-bottom:calc(var(--nav-h) + env(safe-area-inset-bottom) + 24px)}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:54px}
.logo{display:flex;align-items:center;gap:8px}
.logo-heart{
  color:#fff;background:linear-gradient(135deg,var(--primary),#ff4d8d);
  width:30px;height:30px;border-radius:10px;display:grid;place-items:center;
  font-size:16px;box-shadow:0 4px 10px rgba(255,107,157,.35);
}
.logo h1{font-size:18px;font-weight:800;letter-spacing:1px}
.header-right{display:flex;align-items:center;gap:10px}
.icon-btn{font-size:19px;width:38px;height:38px;border-radius:12px;background:var(--card);border:1px solid var(--border)}
.user-area{display:flex;align-items:center;gap:8px}

/* ============ 英雄区 ============ */
.hero{
  text-align:center;padding:34px 10px 18px;
  background:radial-gradient(120% 120% at 50% 0%, var(--primary-soft), transparent 70%);
  border-radius:0 0 24px 24px;margin-bottom:6px;
}
.hero h2{font-size:26px;font-weight:800}
.hero-sub{color:var(--muted);margin:6px 0 18px;font-size:14px}
.hero-stats{margin-top:14px;color:var(--muted);font-size:13px}

/* ============ 分类横滑 ============ */
.cat-scroll{display:flex;align-items:center;gap:8px;margin:12px 0}
.category-tabs{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;flex:1}
.category-tabs::-webkit-scrollbar{display:none}
.category-tabs button{
  flex-shrink:0;padding:7px 15px;border-radius:20px;background:var(--card);
  border:1px solid var(--border);font-size:13px;color:var(--muted);transition:.2s;
}
.category-tabs button.active{background:var(--primary);color:#fff;border-color:var(--primary);font-weight:600}
.sort-hot{flex-shrink:0;padding:7px 13px;border-radius:20px;background:var(--primary-soft);color:var(--primary-deep);font-size:13px;font-weight:600}
.sort-hot.active{background:var(--primary);color:#fff}

/* ============ 搜索 ============ */
.search-box{display:flex;align-items:center;gap:8px;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:4px 6px 4px 12px;margin-bottom:14px}
.search-ico{color:var(--muted)}
.search-box input{flex:1;border:none;outline:none;background:transparent;color:var(--text);padding:8px 0;font-size:14px}
.search-box button{background:var(--primary);color:#fff;border-radius:10px;padding:8px 14px;font-size:13px}

/* ============ 帖子卡片 ============ */
.feed{display:grid;gap:12px}
.card{
  background:var(--card);border-radius:var(--radius);padding:14px;
  box-shadow:var(--shadow);border:1px solid var(--border);
  animation:pop .25s ease;
}
@keyframes pop{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.card-head{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.avatar{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  color:#fff;font-weight:700;font-size:15px;flex-shrink:0;
}
.card-user{font-size:13px;font-weight:600}
.card-time{font-size:11px;color:var(--muted)}
.card-cat{align-self:flex-start;font-size:11px;color:var(--primary-deep);background:var(--primary-soft);padding:2px 8px;border-radius:10px;margin-left:auto}
.card-title{font-size:16px;font-weight:700;margin-bottom:4px}
.card-content{font-size:14px;color:var(--text);word-break:break-word;white-space:pre-wrap}
.card-media,.card-img{width:100%;max-height:320px;border-radius:12px;margin:10px 0;background:var(--border)}
img.card-media,img.card-img{object-fit:cover;cursor:zoom-in}
.card-media.video{position:relative;display:flex;align-items:center;justify-content:center;min-height:180px;max-height:320px;background:#000;overflow:hidden;cursor:pointer}
.card-media.video .video-thumb{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.video-play{position:relative;z-index:2;width:54px;height:54px;border-radius:50%;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;font-size:20px;color:#fff;border:2px solid rgba(255,255,255,.7);pointer-events:none;flex-shrink:0}
.card-footer{display:flex;align-items:center;gap:6px;margin-top:10px;padding-top:10px;border-top:1px dashed var(--border)}
.card.hl{box-shadow:0 0 0 2px var(--primary)}
.card-act{flex:1;display:flex;align-items:center;justify-content:center;gap:5px;padding:8px;border-radius:12px;font-size:13px;color:var(--muted);transition:.15s;background:transparent}
.card-act:active{transform:scale(.96);background:var(--border)}
.card-act.on{color:var(--primary-deep)}
.card-act.liked{color:var(--primary-deep)}
.card-mine{flex:0 0 auto;padding:6px 10px;font-size:12px;color:var(--muted)}

/* 骨架屏 */
.skel{background:var(--border);border-radius:var(--radius);height:110px;position:relative;overflow:hidden}
.skel::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);animation:sh 1.2s infinite}
@keyframes sh{from{transform:translateX(-100%)}to{transform:translateX(100%)}}

/* ============ 加载更多 ============ */
.load-more{text-align:center;margin:16px 0}
.btn-ghost{background:var(--card);border:1px solid var(--border);color:var(--muted);padding:8px 22px;border-radius:20px;font-size:13px}
.feed-end{color:var(--muted);font-size:12px;padding:6px}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border-radius:12px;font-weight:600;transition:.18s}
.btn:active{transform:scale(.97)}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#fff;padding:11px 18px;font-size:14px;box-shadow:0 5px 14px rgba(255,107,157,.3)}
.btn-lg{padding:13px 30px;font-size:16px;border-radius:50px}
.btn-sm{padding:7px 14px;font-size:13px}
.btn-block{width:100%}

/* ============ 底部导航 ============ */
.bottom-nav{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  display:flex;background:color-mix(in srgb,var(--card) 92%,transparent);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--border);
  padding-bottom:env(safe-area-inset-bottom);height:var(--nav-h);
}
.bn-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:11px;color:var(--muted)}
.bn-item.active{color:var(--primary-deep)}
.bn-ico{font-size:20px;line-height:1}
.bn-fab{
  width:46px;height:46px;border-radius:50%;color:#fff;font-size:26px;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  display:grid;place-items:center;margin-top:-22px;box-shadow:0 6px 16px rgba(255,107,157,.45);
  border:3px solid var(--bg);
}

/* ============ 弹窗通用 ============ */
.modal{position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;background:rgba(0,0,0,.45);padding:16px;backdrop-filter:blur(2px)}
.modal.show{display:flex}
.modal-card{
  background:var(--card);border-radius:18px;padding:20px;width:100%;max-width:420px;
  position:relative;max-height:90vh;overflow-y:auto;animation:slideUp .28s ease;
  box-shadow:0 20px 60px rgba(0,0,0,.25);
}
@keyframes slideUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
.modal-close{position:absolute;top:12px;right:14px;font-size:24px;color:var(--muted);line-height:1}
.modal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.modal-head h3{font-size:17px}
.modal-head-only{font-size:17px;margin-bottom:12px}
.auth-pin{color:var(--primary);font-size:22px}

/* 认证 */
.auth-tabs{display:flex;gap:8px;margin:8px 0 12px;background:var(--bg);padding:4px;border-radius:12px}
.auth-tabs button{flex:1;padding:8px;border-radius:9px;font-size:14px;color:var(--muted)}
.auth-tabs button.active{background:var(--card);color:var(--text);font-weight:600;box-shadow:var(--shadow)}
.modal-card label{display:block;font-size:13px;color:var(--muted);margin:10px 0 5px}
.modal-card input[type="text"],.modal-card input[type="password"],.modal-card textarea{
  width:100%;padding:11px;border:1px solid var(--border);border-radius:11px;
  background:var(--bg);color:var(--text);font-size:14px;outline:none;
}
.modal-card input:focus,.modal-card textarea:focus{border-color:var(--primary)}
.modal-card textarea{min-height:92px;resize:vertical}
.req{color:var(--danger)}
.form-error{color:var(--danger);font-size:12px;min-height:16px;margin:6px 0 2px}
.form-row{margin-bottom:4px}

/* 滑动验证 */
.slide-captcha{
  position:relative;height:42px;background:var(--bg);border:1px solid var(--border);
  border-radius:11px;overflow:hidden;user-select:none;
}
.slide-captcha .sc-fill{position:absolute;top:0;bottom:0;left:0;background:var(--primary-soft)}
.slide-captcha .sc-text{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--muted)}
.slide-captcha .sc-thumb{
  position:absolute;top:2px;left:2px;width:38px;height:38px;border-radius:10px;z-index:2;
  background:var(--primary);color:#fff;display:grid;place-items:center;font-size:15px;
  box-shadow:0 2px 6px rgba(0,0,0,.2);touch-action:none;cursor:grab;
}
.slide-captcha .sc-thumb.drag{cursor:grabbing;transform:scale(1.04)}
.slide-captcha.success{border-color:var(--ok)}
.slide-captcha.success .sc-thumb{background:var(--ok)}
.slide-captcha.success .sc-text{color:var(--ok)}

/* 发布弹窗大屏 */
.modal-card-large{max-width:560px}
.category-pick{display:flex;flex-wrap:wrap;gap:8px}
.category-pick button{padding:8px 15px;border-radius:20px;background:var(--bg);border:1px solid var(--border);font-size:13px;color:var(--muted)}
.category-pick button.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.upload-box{display:flex;align-items:center;gap:10px;margin-bottom:8px}
#imagePreview{border-radius:12px;max-height:240px;margin-top:8px}

/* ============ 详情底部抽屉 ============ */
.sheet{align-items:flex-end;padding:0;background:rgba(0,0,0,.45)}
.sheet .sheet-body{
  background:var(--card);width:100%;max-width:720px;margin:0 auto;
  border-radius:22px 22px 0 0;padding:0 18px calc(env(safe-area-inset-bottom) + 96px);
  max-height:88vh;overflow-y:auto;margin-top:auto;animation:sheetUp .3s ease;
  box-shadow:0 -8px 40px rgba(0,0,0,.18);
}
@keyframes sheetUp{from{transform:translateY(100%)}to{transform:none}}
.sheet-handle{width:44px;height:5px;border-radius:3px;background:var(--border);margin:12px auto 10px}

/* 详情头部：头像 + 昵称 + 分类 + 删除 */
.detail-head{display:flex;align-items:center;gap:10px;margin:2px 0 14px}
.detail-head .avatar{width:42px;height:42px;font-size:17px;box-shadow:0 4px 10px rgba(0,0,0,.12)}
.detail-user{flex:1;min-width:0;display:flex;flex-direction:column;line-height:1.35}
.detail-nick{font-size:15px;font-weight:700;color:var(--text)}
.detail-meta{font-size:12px;color:var(--muted)}
.detail .cat-tag{font-size:12px;color:var(--primary-deep);background:var(--primary-soft);padding:3px 10px;border-radius:10px;white-space:nowrap}
.detail-mine-del{width:34px;height:34px;display:grid;place-items:center;color:var(--danger);font-size:16px;background:rgba(239,68,68,.1);border-radius:10px;flex-shrink:0;transition:.2s}
.detail-mine-del:active{transform:scale(.92)}

.detail-title{font-size:19px;font-weight:800;margin-bottom:8px;line-height:1.4}
.detail-img{width:100%;border-radius:14px;margin:10px 0;cursor:zoom-in;box-shadow:0 4px 16px rgba(0,0,0,.08)}
.detail-content{font-size:15px;line-height:1.7;white-space:pre-wrap;word-break:break-word}

/* 操作栏 */
.detail-actions{display:flex;gap:10px;margin:18px 0 8px}
.act-btn{flex:1;display:flex;align-items:center;justify-content:center;gap:6px;padding:12px;border-radius:13px;background:var(--bg);border:1px solid var(--border);font-size:14px;font-weight:600;color:var(--text);transition:.2s}
.act-btn:active{transform:scale(.97)}
.act-btn.on{color:var(--primary-deep);border-color:var(--primary);background:var(--primary-soft)}
.act-btn.on::before,.act-btn.on b{color:var(--primary-deep)}

/* 评论 */
.comments{margin-top:6px;border-top:1px solid var(--border);padding-top:4px}
.comments h4{font-size:15px;margin:12px 0 6px;display:flex;align-items:center;gap:6px}
.comments h4 span{background:var(--primary-soft);color:var(--primary-deep);font-size:12px;padding:1px 8px;border-radius:10px}
.comment-list{display:grid;gap:10px;margin-bottom:8px}
.comment-item{background:var(--bg);border-radius:12px;padding:10px 12px}
.comment-item .cm-head{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:12px;margin-bottom:4px}
.comment-item .cm-head .avatar{width:26px;height:26px;font-size:12px}
.comment-item .cm-text{font-size:14px;line-height:1.6}
.comment-empty{color:var(--muted);text-align:center;font-size:13px;padding:18px 0}
.comment-bar{position:sticky;bottom:0;display:flex;gap:8px;align-items:flex-end;padding:10px 0 8px;background:var(--card)}
.comment-bar textarea{flex:1;border:1px solid var(--border);background:var(--bg);border-radius:14px;padding:10px 12px;font-size:14px;color:var(--text);resize:none;outline:none}
.comment-bar textarea:focus{border-color:var(--primary)}

/* ============ 卡片内联评论（折叠式，QQ 空间风格） ============ */
.card-comments{display:grid;gap:2px;margin-top:12px;padding:12px 14px 6px;border-top:1px dashed var(--border);background:var(--bg);border-radius:14px}
.card-comments[hidden]{display:none}
.card-comments .cm-head{display:flex;align-items:center;justify-content:space-between;font-size:13px;font-weight:600;color:var(--text);margin-bottom:8px}
.card-comments .cm-head > span:first-child{display:flex;align-items:center;gap:6px}
.card-comments .cm-count{background:var(--primary-soft);color:var(--primary-deep);font-size:12px;font-weight:600;padding:1px 8px;border-radius:10px}
.card-comments .cm-list{display:grid;gap:8px}
.card-comments .comment-item{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:8px 10px}
.card-comments .comment-item .cm-head{font-size:12px;font-weight:400;color:var(--muted);margin-bottom:3px}
.card-comments .comment-item .cm-head .avatar{width:24px;height:24px;font-size:11px;flex-shrink:0}
.card-comments .comment-item .cm-nick{font-weight:600;color:var(--text);font-size:13px}
.card-comments .comment-item .cm-time{margin-left:auto;color:var(--muted);font-size:11px}
.card-comments .comment-item .cm-text{font-size:13px;line-height:1.6;color:var(--text)}
.card-comments .cm-more{width:100%;margin-top:8px;padding:8px;border:none;border-radius:9px;background:var(--card);color:var(--primary-deep);font-size:13px;cursor:pointer;transition:.2s}
.card-comments .cm-more:active{opacity:.8}
.card-comments .cm-bar{display:flex;gap:8px;margin:10px 0 6px;align-items:center}
.card-comments .cm-bar .cm-input{flex:1;border:1px solid var(--border);background:var(--card);border-radius:20px;padding:8px 14px;font-size:13px;color:var(--text);outline:none}
.card-comments .cm-bar .cm-input:focus{border-color:var(--primary)}
.card-comments .cm-bar .btn{border-radius:20px;padding:7px 16px;font-size:13px}
.card-comments .comment-empty{color:var(--muted);text-align:center;font-size:13px;padding:6px 0}

/* ============ 我的中心 ============ */
.mine-head{display:flex;align-items:center;gap:14px;padding:20px 4px;margin:8px 0 12px;background:var(--card);border-radius:var(--radius);padding:16px}
.mine-avatar{width:56px;height:56px;border-radius:18px;background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#fff;display:grid;place-items:center;font-size:24px;font-weight:700}
.mine-info{flex:1}
.mine-info h3{font-size:17px}
.mine-info p{font-size:12px;color:var(--muted)}
.mine-tabs{display:flex;gap:8px;margin:14px 0;background:var(--bg);padding:4px;border-radius:12px}
.mine-tabs button{flex:1;padding:9px;border-radius:9px;font-size:14px;color:var(--muted)}
.mine-tabs button.active{background:var(--card);color:var(--text);font-weight:600;box-shadow:var(--shadow)}
.empty-tip{color:var(--muted);text-align:center;padding:24px 0;font-size:14px}
.status-tag{font-size:11px;padding:2px 8px;border-radius:10px}
.status-tag.approved{color:var(--ok);background:rgba(16,185,129,.12)}
.status-tag.pending{color:#f59e0b;background:rgba(245,158,11,.12)}
.status-tag.rejected{color:var(--danger);background:rgba(239,68,68,.12)}

/* ============ 大图预览 ============ */
.viewer{background:rgba(0,0,0,.92);padding:0}
.viewer img{max-width:100%;max-height:88vh;object-fit:contain;border-radius:4px}
.viewer video{max-width:100%;max-height:88vh;border-radius:4px;outline:none}
.viewer .modal-close{color:#fff}

/* ============ Toast ============ */
.toast{
  position:fixed;left:50%;bottom:calc(var(--nav-h) + env(safe-area-inset-bottom) + 18px);
  transform:translateX(-50%) translateY(10px);background:rgba(20,24,34,.9);color:#fff;
  padding:10px 20px;border-radius:30px;font-size:14px;opacity:0;pointer-events:none;
  transition:.25s;z-index:300;white-space:nowrap;max-width:88%;overflow:hidden;text-overflow:ellipsis;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.ok{background:rgba(16,185,129,.95)}
.toast.err{background:rgba(239,68,68,.95)}

.muted{color:var(--muted)}

@media (min-width:720px){
  .bottom-nav{left:50%;transform:translateX(-50%);width:680px;border-radius:18px 18px 0 0}
}

/* ============ 角色标识 / 管理员入口 / 评论删除 ============ */
.role-badge{
  display:inline-block;vertical-align:1px;margin-left:5px;padding:1px 7px;border-radius:8px;
  font-size:10px;font-weight:600;line-height:1.6;transform:scale(.92)
}
.role-badge.admin{color:#b45309;background:rgba(245,158,11,.16);border:1px solid rgba(245,158,11,.35)}
.role-badge.super{color:#7c3aed;background:rgba(139,92,246,.14);border:1px solid rgba(139,92,246,.35)}
.card-user .role-badge,.detail-nick .role-badge{vertical-align:2px}

.admin-entry{
  display:inline-flex;align-items:center;gap:4px;padding:6px 10px;border-radius:10px;font-size:12px;font-weight:600;
  color:#fff;background:linear-gradient(135deg,#7c3aed,#6c5ce7);text-decoration:none;box-shadow:0 2px 8px rgba(108,92,231,.35)
}
.admin-entry:hover{opacity:.9}

.comment-del{
  margin-left:auto;border:none;background:transparent;color:var(--muted);cursor:pointer;
  font-size:13px;padding:2px 6px;border-radius:8px;line-height:1
}
.comment-del:hover{color:var(--danger);background:rgba(239,68,68,.1)}