/* ============================================================
   校园论坛 · 前台全局样式（简洁扁平 / 蓝白主题 · v1.5.0 Beta）
   ============================================================ */
:root{
  --primary:#2563EB;
  --primary-d:#1D4ED8;
  --primary-soft:#EFF6FF;
  --accent:#16A34A;
  --accent-soft:#E8F8EE;
  --danger:#E5484D;
  --danger-soft:#FEF2F2;
  --warn:#D97706;
  --warn-soft:#FFF7E6;
  --bg:#FAF7F2;
  --surface:#FFFFFF;
  --text:#1F2937;
  --muted:#7C8494;
  --border:#E9E4DB;
  --radius:14px;
  --shadow:0 2px 12px rgba(30,64,120,.06);
  --shadow-lg:0 16px 48px rgba(15,40,90,.14);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Inter,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-size:15px;line-height:1.6}
a{text-decoration:none;color:inherit}
.svg-ico{vertical-align:-3px;flex-shrink:0}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.muted{color:var(--muted);font-size:13px}

/* ---------- 顶部导航 ---------- */
.top{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(--border)}
.top-in{display:flex;align-items:center;height:62px;gap:28px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:-.3px}
.logo img{width:32px;height:32px;border-radius:9px;box-shadow:0 2px 8px rgba(37,99,235,.25)}
.nav{margin-left:auto;display:flex;gap:4px}
.nav a{display:flex;align-items:center;gap:6px;padding:8px 14px;border-radius:10px;font-size:14.5px;color:#4B5563;transition:all .18s}
.nav a:hover{color:var(--primary);background:var(--primary-soft)}
.nav a.on{color:var(--primary);background:var(--primary-soft);font-weight:600}
.top-act{display:flex;align-items:center;gap:10px}
.top-act .hello{font-size:13px;color:var(--muted)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;background:var(--primary);color:#fff;border:0;border-radius:11px;padding:11px 26px;font-size:14.5px;font-weight:600;cursor:pointer;transition:all .18s ease;line-height:1.4}
.btn:hover{background:var(--primary-d);box-shadow:0 6px 18px rgba(37,99,235,.32);transform:translateY(-1px)}
.btn:active{transform:scale(.97)}
.btn.ghost{background:var(--surface);color:var(--text);border:1px solid var(--border)}
.btn.ghost:hover{border-color:var(--primary);color:var(--primary);box-shadow:none;background:var(--primary-soft)}
.btn.small{padding:7px 15px;font-size:13px;border-radius:9px}
.btn.danger{background:var(--danger)}
.btn.danger:hover{background:#D13B40;box-shadow:0 6px 18px rgba(229,72,77,.3)}
.btn.success{background:var(--accent)}
.btn.success:hover{background:#128A3F}
.btn.block{width:100%}

/* ---------- Hero ---------- */
.hero{position:relative;text-align:center;padding:64px 20px 40px;overflow:hidden}
.hero::before{content:"";position:absolute;top:-140px;left:50%;transform:translateX(-50%);width:720px;height:420px;background:radial-gradient(closest-side,rgba(37,99,235,.14),transparent);pointer-events:none}
.badge{position:relative;display:inline-flex;align-items:center;gap:6px;border:1px solid #BFDBFE;background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:600;border-radius:999px;padding:6px 16px;margin-bottom:22px}
.hero h1{position:relative;font-size:56px;line-height:1.12;letter-spacing:-1.8px;font-weight:900}
.hero h1 .hl{background:linear-gradient(120deg,var(--primary),#60A5FA);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{position:relative;color:var(--muted);margin:16px auto 0;max-width:620px;font-size:15.5px;line-height:1.8}
.hero-btns{position:relative;margin-top:22px;display:flex;gap:12px;justify-content:center}
.hero-stats{position:relative;margin:36px auto 0;display:flex;gap:40px;justify-content:center}
.hero-stats .hs{text-align:center}
.hero-stats .hs b{font-size:24px;font-weight:800;color:var(--text)}
.hero-stats .hs span{display:block;font-size:12.5px;color:var(--muted);margin-top:2px}

/* ---------- 首页头部（无大标题） ---------- */
.home-head{position:relative;text-align:center;padding:40px 20px 26px;overflow:hidden}
.home-head::before{content:"";position:absolute;top:-160px;left:50%;transform:translateX(-50%);width:720px;height:420px;background:radial-gradient(closest-side,rgba(37,99,235,.14),transparent);pointer-events:none}
/* v1.5.0 SEO：首页唯一 H1（同时作为站点主标题展示） */
.home-slogan{position:relative;color:var(--muted);margin:0 auto;max-width:620px;font-size:15px;line-height:1.8;font-weight:400}

/* ---------- 布局 ---------- */
.layout{display:grid;grid-template-columns:1fr 300px;gap:24px;margin:10px auto 48px;max-width:1120px;padding:0 20px}
@media(max-width:900px){.layout{grid-template-columns:1fr}}

/* ---------- 卡片 ---------- */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;margin-bottom:22px}
.card-h{display:flex;align-items:center;gap:8px;padding:14px 20px;border-bottom:1px solid var(--border);font-size:14.5px;font-weight:700}
.card-h .svg-ico{color:var(--primary)}
.card-h .r{margin-left:auto;color:var(--muted);font-size:12.5px;font-weight:400;display:flex;gap:14px;align-items:center}
.card-body{padding:20px}

/* ---------- 版块 chips ---------- */
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.chip{display:inline-flex;align-items:center;gap:5px;padding:7px 15px;border-radius:999px;border:1px solid var(--border);background:var(--surface);font-size:13.5px;color:#4B5563;cursor:pointer;transition:all .16s}
.chip:hover{border-color:var(--primary);color:var(--primary)}
.chip.on{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}

/* ---------- 帖子流 ---------- */
.post-item{display:flex;gap:14px;padding:18px 20px;border-bottom:1px solid var(--border);transition:background .15s}
.post-item:last-child{border-bottom:0}
.post-item:hover{background:#F4F8FE}
.post-ava{width:42px;height:42px;border-radius:11px;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;flex-shrink:0}
.post-main{flex:1;min-width:0}
.post-title{font-weight:700;font-size:15.5px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.post-item:hover .post-title{color:var(--primary)}
.post-meta{display:flex;align-items:center;gap:12px;margin-top:5px;font-size:12.5px;color:var(--muted);flex-wrap:wrap}
.post-meta .svg-ico{width:13px;height:13px;vertical-align:-2px}
.post-tag{display:inline-block;background:var(--primary-soft);color:var(--primary);font-size:11.5px;font-weight:600;border-radius:6px;padding:2px 8px}
.post-views{display:flex;align-items:center;gap:5px;color:var(--muted);font-size:12.5px;white-space:nowrap}
.post-right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn{display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:9px;border:1px solid var(--border);background:var(--surface);color:var(--muted);cursor:pointer;transition:all .16s}
.icon-btn:hover{border-color:#FBD5D6;background:var(--danger-soft);color:var(--danger)}
.empty{padding:44px 20px;text-align:center;color:var(--muted);font-size:14px}
.empty .svg-ico{width:34px;height:34px;color:#B6C2D4;margin-bottom:8px}

/* ---------- 侧栏 ---------- */
.side-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:20px;overflow:hidden}
.hot-item{display:flex;align-items:center;gap:12px;padding:12px 18px;transition:background .15s}
.hot-item:hover{background:#F4F8FE}
.hot-rank{width:22px;height:22px;border-radius:7px;background:#EEF2F7;color:var(--muted);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.hot-item:nth-of-type(1) .hot-rank{background:#FEE2E2;color:#DC2626}
.hot-item:nth-of-type(2) .hot-rank{background:#FFEDD5;color:#EA580C}
.hot-item:nth-of-type(3) .hot-rank{background:#FEF9C3;color:#CA8A04}
.hot-main{flex:1;min-width:0}
.hot-title{font-size:13.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hot-sub{font-size:11.5px;color:var(--muted);margin-top:1px}

/* ---------- 表单 ---------- */
.form{max-width:440px;margin:48px auto;background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:34px 32px;box-shadow:var(--shadow-lg)}
.form.wide{max-width:640px}
.form .flogo{display:flex;justify-content:center;margin-bottom:14px}
.form .flogo img{width:48px;height:48px;border-radius:13px;box-shadow:0 4px 14px rgba(37,99,235,.28)}
.form h1,.form h2{font-size:22px;margin:0 0 5px;text-align:center;letter-spacing:-.4px}
.form .sub{text-align:center;color:var(--muted);font-size:13px;margin-bottom:22px}
.inp{width:100%;border:1.5px solid var(--border);border-radius:11px;padding:11px 14px;font-size:14px;margin:7px 0;outline:none;background:var(--surface);color:var(--text);transition:all .18s;font-family:inherit}
.inp:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.inp::placeholder{color:#A8B3C4}
select.inp{cursor:pointer}
textarea.inp{resize:vertical;line-height:1.7}
.code-row{display:flex;gap:8px;align-items:center}
.code-row .inp{flex:1}
.center{text-align:center;margin-top:16px;font-size:14px;color:var(--muted)}
.center a{color:var(--primary);font-weight:500}
.center a:hover{text-decoration:underline}
.divider{display:flex;align-items:center;gap:12px;color:#A8B3C4;font-size:12px;margin:18px 0 4px}
.divider::before,.divider::after{content:"";flex:1;height:1px;background:var(--border)}
.oauth-row{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:12px}
.oauth-row .btn{justify-content:center}

/* ---------- 提示 ---------- */
.alert{display:flex;align-items:flex-start;gap:8px;background:var(--danger-soft);border:1px solid #FBD5D6;color:#B4232A;padding:11px 14px;border-radius:11px;font-size:13.5px;margin-bottom:14px;line-height:1.6}
.alert .svg-ico{margin-top:2px}
.success{display:flex;align-items:flex-start;gap:8px;background:var(--accent-soft);border:1px solid #BDE8CC;color:#0E7A38;padding:11px 14px;border-radius:11px;font-size:13.5px;margin-bottom:14px;line-height:1.6}
.success .svg-ico{margin-top:2px}
.success a{color:#0E7A38;font-weight:600;text-decoration:underline}

/* ---------- 表格（个人中心 / 自检页） ---------- */
table.tbl{width:100%;border-collapse:collapse;font-size:14px}
table.tbl td{padding:12px 8px;border-bottom:1px solid var(--border);vertical-align:middle}
table.tbl tr:last-child td{border-bottom:0}
table.tbl td:first-child{color:var(--muted);white-space:nowrap;width:110px}

/* ---------- 个人中心 ---------- */
.uc-head{display:flex;align-items:center;gap:16px;margin-bottom:22px}
.uc-ava{width:56px;height:56px;border-radius:16px;background:linear-gradient(135deg,var(--primary),#60A5FA);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800;flex-shrink:0}
.uc-name{font-size:18px;font-weight:800;margin:0}
.uc-sub{font-size:13px;color:var(--muted);margin-top:2px}
.uc-sec{font-size:15px;font-weight:700;margin:22px 0 10px;display:flex;align-items:center;gap:7px}
.uc-sec .svg-ico{color:var(--primary)}
.uc-sec.danger{color:var(--danger)}
.uc-sec.danger .svg-ico{color:var(--danger)}
.tagx{display:inline-block;font-size:11.5px;font-weight:600;border-radius:999px;padding:2px 10px}
.tagx.ok{background:var(--accent-soft);color:var(--accent)}
.tagx.no{background:#EEF2F7;color:var(--muted)}
.tagx.admin{background:var(--primary-soft);color:var(--primary)}

/* ---------- 帖子详情 ---------- */
.detail-title{font-size:25px;font-weight:800;letter-spacing:-.4px;line-height:1.35}
.detail-meta{display:flex;align-items:center;gap:14px;margin:12px 0 20px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.detail-meta .svg-ico{width:14px;height:14px;vertical-align:-2px}
.detail-content{line-height:1.95;color:#3A3850;font-size:16px;word-break:break-word}
.reply-ava{width:36px;height:36px;border-radius:10px;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;flex-shrink:0}

/* ---------- 右下角发帖按钮 ---------- */
.fab{position:fixed;right:28px;bottom:30px;z-index:90;width:58px;height:58px;border-radius:50%;border:0;background:linear-gradient(135deg,var(--primary),#60A5FA);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 8px 24px rgba(37,99,235,.4);transition:all .18s ease}
.fab:hover{transform:translateY(-3px) scale(1.04);box-shadow:0 12px 30px rgba(37,99,235,.5)}
.fab:active{transform:scale(.95)}

/* ---------- 发帖弹窗 ---------- */
.modal-mask{display:none;position:fixed;inset:0;z-index:120;background:rgba(15,23,42,.5);align-items:center;justify-content:center;padding:20px;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}
.modal{background:var(--surface);border-radius:18px;width:100%;max-width:580px;max-height:90vh;overflow:auto;padding:24px 26px;box-shadow:var(--shadow-lg);animation:pop .22s cubic-bezier(.2,.9,.3,1.15)}
.modal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.modal-title{display:flex;align-items:center;gap:8px;font-weight:800;font-size:17px;color:var(--text)}
.modal-title .svg-ico{color:var(--primary)}
.modal-close{border:0;background:transparent;cursor:pointer;padding:7px;border-radius:9px;display:flex;color:var(--muted);transition:all .15s}
.modal-close:hover{background:#EEF2F7;color:var(--text)}
.font-ctrl{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:6px 0 10px}
.font-ctrl label{display:flex;align-items:center;gap:6px;background:var(--bg);border:1px solid var(--border);border-radius:9px;padding:6px 10px;font-size:12.5px;color:var(--muted);cursor:pointer}
.font-ctrl label .svg-ico{color:var(--primary)}
.font-ctrl select{border:0;background:transparent;font-size:13px;color:var(--text);outline:none;cursor:pointer;font-family:inherit}
@keyframes pop{from{transform:scale(.92) translateY(10px);opacity:0}to{transform:scale(1) translateY(0);opacity:1}}

/* ---------- 页脚 ---------- */
.footer{border-top:1px solid var(--border);color:var(--muted);font-size:13px;padding:26px 0 34px;margin-top:20px;text-align:center;line-height:2}
.footer a{color:var(--primary)}
.footer .flogo{width:20px;height:20px;border-radius:5px;vertical-align:-4px;margin-right:6px}

/* ---------- 响应式（手机适配） ---------- */
@media(max-width:760px){
  .wrap{padding:0 12px}
  /* 顶部导航：两行布局，导航可横向滑动 */
  .top-in{flex-wrap:wrap;height:auto;gap:8px 10px;padding:10px 0 0}
  .logo{font-size:16px}
  .logo img{width:28px;height:28px}
  .top-act{margin-left:auto;gap:6px}
  .top-act .hello{display:none}
  .top-act .btn.small{padding:6px 11px;font-size:12.5px}
  .nav{order:3;width:100%;margin-left:0;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;padding-bottom:2px}
  .nav::-webkit-scrollbar{display:none}
  .nav a{flex-shrink:0;padding:7px 12px;font-size:13.5px}
  /* 首页头部 */
  .home-head{padding:26px 10px 18px}
  .home-slogan{font-size:13.5px}
  .hero-btns{margin-top:16px;flex-wrap:wrap}
  .hero-btns .btn{padding:10px 18px;font-size:13.5px}
  /* 版块 chips：横向滑动 */
  .chips{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;padding-bottom:6px}
  .chips::-webkit-scrollbar{display:none}
  .chip{flex-shrink:0;font-size:12.5px;padding:6px 13px}
  /* 卡片与帖子流 */
  .card{border-radius:12px;margin-bottom:16px}
  .card-h{padding:12px 14px;font-size:14px}
  .card-h .r{gap:8px}
  .card-body{padding:16px 14px}
  .post-item{padding:14px;gap:11px}
  .post-ava{width:38px;height:38px;font-size:14px;border-radius:10px}
  .post-title{font-size:14.5px;white-space:normal;display:-webkit-box;display:line-clamp-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .post-meta{gap:8px;font-size:11.5px}
  .post-views{font-size:11.5px}
  .post-right{flex-direction:column;gap:6px;align-items:flex-end}
  .icon-btn{width:32px;height:32px}
  .hot-item{padding:11px 14px}
  /* 表单页 */
  .form{margin:20px auto;padding:26px 18px;border-radius:14px;max-width:calc(100% - 24px)}
  .form.wide{max-width:calc(100% - 24px)}
  .form h1,.form h2{font-size:19px}
  /* 详情页 */
  .detail-title{font-size:20px}
  .detail-content{font-size:15px}
  /* 个人中心 */
  .uc-head{gap:12px}
  .uc-ava{width:48px;height:48px;font-size:19px}
  .uc-name{font-size:16px}
  table.tbl td:first-child{width:auto;white-space:normal}
  /* 发帖按钮 + 底部弹出式弹窗 */
  .fab{right:16px;bottom:20px;width:52px;height:52px}
  .modal-mask{padding:0;align-items:flex-end}
  .modal{max-width:100%;max-height:92vh;border-radius:18px 18px 0 0;padding:20px 16px calc(20px + env(safe-area-inset-bottom))}
  .font-ctrl label{font-size:12px;padding:6px 8px}
  .footer{padding:22px 12px 30px;font-size:12px}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}

/* ============================================================
   v1.3.0 新增组件
   ============================================================ */

/* ---------- 全局加载动画（header.php #appLoader） ---------- */
.app-loader{position:fixed;inset:0;z-index:9999;background:var(--bg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;transition:opacity .35s ease}
.app-loader.ld-out{opacity:0;pointer-events:none}
.ld-spin{width:34px;height:34px;border-radius:50%;border:3px solid #D7E4F6;border-top-color:var(--primary);animation:ldspin .8s linear infinite}
.ld-t{font-size:13px;color:var(--muted);letter-spacing:.5px}
@keyframes ldspin{to{transform:rotate(360deg)}}

/* ---------- 头像（avatar_html 输出） ---------- */
.ava-img{border-radius:10px;object-fit:cover;flex-shrink:0;background:var(--primary-soft)}
.ava-letter{display:inline-flex;align-items:center;justify-content:center;border-radius:10px;font-weight:800;flex-shrink:0;user-select:none}

/* ---------- 角色徽章（role_badges 输出） ---------- */
.badge-role{display:inline-flex;align-items:center;gap:3px;font-size:10.5px;font-weight:700;border-radius:999px;padding:1px 8px;line-height:1.6;flex-shrink:0;white-space:nowrap}
.badge-role .svg-ico{width:11px;height:11px}
.badge-role.r-admin{background:var(--danger-soft);color:var(--danger)}
.badge-role.r-official{background:var(--primary-soft);color:var(--primary-d);border:1px solid #BFDBFE}
.badge-role.r-op{background:var(--warn-soft);color:var(--warn)}
.badge-role.r-announce{background:#FEE2E2;color:#DC2626}
.badge-role.r-aiscan{background:#ECFDF5;color:#059669;border:1px solid #A7F3D0}

/* ---------- 顶栏铃铛 / 站内消息 ---------- */
.bell-wrap{position:relative}
.bell{position:relative;display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;border:1px solid var(--border);background:var(--surface);color:#5B6472;cursor:pointer;transition:all .16s}
.bell:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
.bell-dot{position:absolute;top:-4px;right:-4px;min-width:16px;height:16px;border-radius:999px;background:var(--danger);border:2px solid var(--surface)}
.bell-panel{position:absolute;right:0;top:44px;width:330px;background:var(--surface);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow-lg);overflow:hidden;z-index:80;animation:pop .18s ease}
.bell-h{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--border);font-size:13.5px;font-weight:700}
.bell-read{border:0;background:transparent;color:var(--primary);font-size:12px;font-weight:600;cursor:pointer;padding:2px 4px}
.bell-read:hover{text-decoration:underline}
.bell-list{max-height:340px;overflow-y:auto}
.bell-item{display:flex;align-items:flex-start;gap:8px;padding:11px 16px;border-bottom:1px solid var(--border);font-size:12.5px;line-height:1.55;transition:background .14s}
.bell-item:last-child{border-bottom:0}
.bell-item:hover{background:#F4F8FE}
.bell-item.unread{background:var(--primary-soft)}
.bell-item.unread:hover{background:#E1EDFD}
.bell-tag{flex-shrink:0;font-size:10.5px;font-weight:700;border-radius:6px;padding:1px 7px;margin-top:1px;background:#EEF2F7;color:#5B6472;font-style:normal}
.bell-tag.t-like{background:var(--danger-soft);color:var(--danger)}
.bell-tag.t-reply{background:var(--accent-soft);color:var(--accent)}
.bell-tag.t-system,.bell-tag.t-push{background:var(--primary-soft);color:var(--primary)}
.bell-txt{flex:1;min-width:0;color:#3D4655}
.bell-time{flex-shrink:0;font-style:normal;color:#A8B3C4;font-size:11px;margin-top:1px}
.bell-empty{padding:32px 16px;text-align:center;color:var(--muted);font-size:12.5px}
@media(max-width:760px){.bell-panel{position:fixed;left:10px;right:10px;top:110px;width:auto}}

/* ---------- 首页帖子卡片（post-card） ---------- */
.post-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 18px;margin-bottom:16px;transition:box-shadow .18s,transform .18s;animation:pcIn .35s ease backwards}
.post-card:hover{box-shadow:0 10px 28px rgba(30,64,120,.12);transform:translateY(-2px)}
@keyframes pcIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.pc-head{display:flex;align-items:center;gap:8px}
.pc-user{display:inline-flex;align-items:center;gap:7px;min-width:0;font-size:13.5px;font-weight:600;color:var(--text)}
.pc-user:hover .pc-nick{color:var(--primary)}
.pc-nick{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:color .15s}
.pc-side{margin-left:auto;display:flex;align-items:center;gap:7px;flex-shrink:0}
.pc-body{display:block;margin-top:10px}
.pc-title{font-size:16px;font-weight:800;letter-spacing:-.2px;line-height:1.45;color:var(--text)}
.post-card:hover .pc-title{color:var(--primary)}
.pc-excerpt{margin-top:5px;color:#5B6472;font-size:13.5px;line-height:1.7;display:box;line-clamp:2;box-orient:vertical;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;word-break:break-word}
.pc-foot{display:flex;align-items:center;margin-top:12px;gap:10px}
.pc-time{display:flex;align-items:center;gap:5px;color:#98A1B0;font-size:12px;white-space:nowrap}
.pc-acts{margin-left:auto;display:flex;align-items:center;gap:4px}
.pc-act{display:inline-flex;align-items:center;gap:5px;border:0;background:transparent;border-radius:9px;padding:5px 10px;font-size:12.5px;color:#6B7484;cursor:pointer;transition:all .15s;text-decoration:none;font-family:inherit}
.pc-act b{font-weight:600}
.pc-act:hover{background:var(--primary-soft);color:var(--primary)}
.pc-act.pc-like.on{color:var(--danger)}
.pc-act.pc-like.on .svg-ico{fill:var(--danger)}
.pc-act:disabled{opacity:.45;cursor:not-allowed}

/* ---------- 首页双热榜 ---------- */
.hot-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:22px 0 46px}
@media(max-width:900px){.hot-grid{grid-template-columns:1fr}}

/* ---------- 首页左右立绘（≥1280px 显示，图片缺失自动隐藏） ---------- */
.pc-fig{display:none;position:fixed;bottom:-8px;z-index:-1;pointer-events:none;user-select:none}
.pc-fig img{display:block;height:min(50vh,460px);width:auto;filter:drop-shadow(0 12px 24px rgba(30,64,120,.10))}
.pc-fig.l{left:max(8px,calc(50vw - 690px))}
.pc-fig.r{right:max(8px,calc(50vw - 690px))}
@media(min-width:1280px){.pc-fig{display:block}}

/* ---------- 发帖弹窗图片上传行 ---------- */
.up-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;background:var(--primary-soft);border:1px dashed #BFDBFE;border-radius:11px;padding:9px 12px;margin:2px 0 12px}
.up-row .btn{padding:6px 13px;font-size:12.5px}
.up-bar{display:none;flex:1;min-width:80px;height:6px;border-radius:999px;background:#D8E6F9;overflow:hidden}
.up-bar i{display:block;height:100%;width:0;border-radius:999px;background:linear-gradient(90deg,var(--primary),#60A5FA);transition:width .2s}
.up-tip{font-size:11.5px;color:#7C8494;flex-basis:100%}

/* ---------- 帖子详情：点赞/转发操作区 + 公告按钮 ---------- */
.detail-acts{display:flex;align-items:center;gap:10px;margin-top:20px;padding-top:16px;border-top:1px dashed var(--border)}
.announce-btns{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}

/* ---------- 楼中楼回复 ---------- */
.reply-floor{padding:4px 0;border-bottom:1px solid var(--border)}
.reply-floor:last-child{border-bottom:0}
.floor-no{display:inline-block;font-size:11px;font-weight:700;color:#A8B3C4;margin-bottom:2px}
.reply-item{padding:10px 0 8px}
.reply-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.r-time{font-size:11.5px;color:#A8B3C4}
.reply-content{margin-top:6px;font-size:14px;line-height:1.8;color:#374151;word-break:break-word}
.reply-acts{display:flex;align-items:center;gap:6px;margin-top:8px}
.ra-btn{display:inline-flex;align-items:center;gap:4px;border:1px solid var(--border);background:var(--surface);color:#6B7484;border-radius:8px;padding:3px 10px;font-size:12px;cursor:pointer;transition:all .15s;font-family:inherit}
.ra-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
.ra-btn.ra-like.on{color:var(--danger);border-color:#FBD5D6;background:var(--danger-soft)}
.rc-toggle{display:inline-flex;align-items:center;gap:5px;margin:4px 0 2px 36px;border:0;background:transparent;color:var(--primary);font-size:12.5px;font-weight:600;cursor:pointer;padding:2px 0;font-family:inherit}
.rc-toggle i{font-style:normal;display:inline-block;transition:transform .18s}
.rc-toggle.open i{transform:rotate(180deg)}
.reply-children{margin:2px 0 6px 36px;padding-left:12px;border-left:2px solid #DCE8FA}
.replying-to{display:flex;align-items:center;gap:8px;background:var(--primary-soft);border:1px solid #BFDBFE;border-radius:9px;padding:7px 12px;font-size:12.5px;color:var(--primary);margin-bottom:10px}
.replying-to .ra-btn{margin-left:auto}

/* ---------- 黑色页脚（footer-dark） ---------- */
.footer-dark{background:#111726;color:#8B94A6;margin-top:40px}
.fd-in{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px;padding:42px 20px 30px}
.fd-brand{display:flex;align-items:flex-start;gap:12px}
.fd-brand img{width:36px;height:36px;border-radius:10px;flex-shrink:0}
.fd-brand b{display:block;color:#F2F5FA;font-size:15.5px;font-weight:800;letter-spacing:-.2px}
.fd-brand span{display:block;margin-top:3px;font-size:12px;color:#69738A}
.fd-col>b{display:block;color:#E7ECF4;font-size:13.5px;font-weight:700;margin-bottom:12px;letter-spacing:1px}
.fd-col>a{display:block;padding:4px 0;font-size:12.5px;color:#8B94A6;transition:color .15s}
.fd-col>a:hover{color:#fff}
.fd-about{font-size:12.5px;line-height:1.9;color:#8B94A6}
.fd-about a{color:#6AA5F8}
.fd-about a:hover{text-decoration:underline}
.fd-bt{border-top:1px solid rgba(255,255,255,.07);text-align:center;padding:16px 20px 18px;font-size:12px;color:#5E6980}
@media(max-width:760px){.fd-in{grid-template-columns:1fr;gap:24px;padding:30px 16px 22px}}

/* ============================================================
   v1.4 新增组件
   ============================================================ */

/* ---------- 导航「版块」下拉菜单 ---------- */
.nav-drop{position:relative}
.nav-drop-btn{display:flex;align-items:center;gap:6px;padding:8px 14px;border-radius:10px;font-size:14.5px;color:#4B5563;background:transparent;border:0;cursor:pointer;font-family:inherit;transition:all .18s}
.nav-drop-btn .svg-ico{color:#9AA4B5;transition:color .16s}
.nav-drop-btn:hover,.nav-drop.open .nav-drop-btn,.nav-drop-btn.on{color:var(--primary);background:var(--primary-soft)}
.nav-drop-btn:hover .svg-ico,.nav-drop.open .nav-drop-btn .svg-ico,.nav-drop-btn.on .svg-ico{color:var(--primary)}
.nav-drop-btn i{font-style:normal;font-size:10px;line-height:1;transition:transform .18s}
.nav-drop.open .nav-drop-btn i{transform:rotate(180deg)}
.nav-drop-panel{display:none;position:absolute;top:calc(100% + 8px);left:0;min-width:180px;background:var(--surface);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow-lg);padding:6px;z-index:70;animation:pop .16s ease}
.nav-drop.open .nav-drop-panel{display:block}
.nav-drop-panel a{display:flex;align-items:center;gap:8px;padding:9px 12px;border-radius:9px;font-size:13.5px;color:#4B5563;transition:all .14s}
.nav-drop-panel a:hover{background:var(--primary-soft);color:var(--primary)}
.nav-drop-panel a.on{background:var(--primary-soft);color:var(--primary);font-weight:600}

/* ---------- 板块详情页工具栏（排序 / 时间段） ---------- */
.board-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:24px 0 14px}
.board-bar h1{font-size:22px;font-weight:800;letter-spacing:-.4px;display:flex;align-items:center;gap:9px}
.board-bar h1 .svg-ico{color:var(--primary)}
.bb-count{font-size:12.5px;color:var(--muted);font-weight:500;background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:2px 11px;margin-left:4px}
.board-tools{margin-left:auto;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.seg-label{font-size:12px;color:var(--muted)}
.seg{display:flex;background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:3px;gap:2px;box-shadow:var(--shadow)}
.seg a{padding:5px 13px;border-radius:8px;font-size:12.5px;color:#6B7484;transition:all .15s;white-space:nowrap}
.seg a:hover{color:var(--primary)}
.seg a.on{background:var(--primary);color:#fff;font-weight:600}

/* ---------- 主页板块入口卡 ---------- */
.board-jump .bj-in{display:flex;gap:8px;flex-wrap:wrap;padding:16px 20px}
.board-jump .chip{cursor:pointer}

/* ---------- 分页 ---------- */
.pg{display:flex;gap:6px;align-items:center;margin:18px 0 30px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.pg a,.pg span{border:1px solid var(--border);border-radius:8px;padding:5px 11px;background:var(--surface);color:#4B5563;transition:all .15s}
.pg span{border-color:transparent;background:transparent;color:var(--muted)}
.pg span.cur{background:var(--primary);color:#fff;border-color:var(--primary);font-weight:600}
.pg a:hover{border-color:var(--primary);color:var(--primary)}

/* ---------- 绑定邮箱弹窗提示条 ---------- */
.bind-note{background:var(--warn-soft);border:1px solid #F5D9A8;color:#8A5A00;border-radius:10px;padding:10px 13px;font-size:12.5px;line-height:1.7;margin-bottom:14px}

/* ---------- v1.4 正文图片：图床外链渲染为图片（详情页/回复） ---------- */
.post-img{display:block;max-width:100%;height:auto;margin:10px 0;border-radius:12px;border:1px solid var(--border);background:var(--surface);cursor:zoom-in;transition:box-shadow .18s}
.post-img:hover{box-shadow:var(--shadow-lg)}
.reply-content .post-img{max-width:min(100%,320px);margin:8px 0}
/* 列表卡片缩略图 */
.pc-thumb{display:block;max-width:100%;max-height:240px;width:auto;height:auto;object-fit:cover;border-radius:12px;border:1px solid var(--border);margin-top:10px;background:var(--surface)}
.pc-excerpt:empty{display:none}

/* ---------- v1.4 发帖弹窗上传预览 ---------- */
.up-prev{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.up-prev:empty{display:none}
.up-item{position:relative;width:74px;height:74px;border-radius:10px;overflow:hidden;border:1px solid var(--border);background:var(--surface)}
.up-item img{width:100%;height:100%;object-fit:cover;display:block}
/* v1.4.2 缩略图右上角删除按钮：点击仅从待发布列表移除，正文不含任何图片文字 */
.up-del{position:absolute;top:2px;right:2px;width:20px;height:20px;padding:0;border:0;border-radius:50%;background:rgba(15,23,42,.62);color:#fff;font-size:13px;line-height:1;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .15s}
.up-del:hover{background:var(--danger)}

/* ---------- v1.4 图片灯箱（点击正文图片放大） ---------- */
.img-view{position:fixed;inset:0;z-index:200;background:rgba(12,16,26,.86);display:flex;align-items:center;justify-content:center;padding:24px;cursor:zoom-out;animation:pop .16s ease}
.img-view[hidden]{display:none}
.img-view img{max-width:100%;max-height:100%;border-radius:12px;box-shadow:0 24px 64px rgba(0,0,0,.5)}

@media(max-width:760px){
  .nav-drop-panel{position:fixed;left:10px;right:10px;top:112px;min-width:0}
  .board-bar{gap:8px;margin:18px 0 12px}
  .board-bar h1{font-size:19px}
  .board-tools{width:100%;margin-left:0;justify-content:flex-start;gap:8px}
  .seg{padding:2px}
  .seg a{padding:4px 10px;font-size:12px}
  .board-jump .bj-in{padding:13px 14px}
}

/* ============================================================
   v1.4.1 正式版 新增组件
   ============================================================ */

/* ---------- 弹窗公告（footer.php #popAnn） ---------- */
.pop-mask{position:fixed;inset:0;z-index:300;background:rgba(12,16,26,.55);backdrop-filter:blur(3px);display:flex;align-items:center;justify-content:center;padding:22px;animation:popFade .2s ease}
.pop-mask[hidden]{display:none}
@keyframes popFade{from{opacity:0}to{opacity:1}}
.pop-box{width:100%;max-width:420px;max-height:84vh;overflow-y:auto;background:var(--surface);border-radius:18px;box-shadow:0 24px 64px rgba(12,16,26,.32);padding:22px 22px 18px;animation:pop .24s cubic-bezier(.2,.9,.3,1.2)}
.pop-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.pop-badge{display:inline-flex;align-items:center;gap:6px;background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:700;border-radius:999px;padding:5px 12px}
.pop-close{width:34px;height:34px;border:0;background:var(--bg);color:var(--muted);border-radius:50%;font-size:20px;line-height:1;cursor:pointer;transition:all .16s;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.pop-close:hover{background:#E8EDF4;color:var(--text)}
.pop-title{font-size:18px;font-weight:800;line-height:1.45;margin-bottom:10px;letter-spacing:-.2px}
.pop-body{font-size:14px;line-height:1.85;color:#4B5563;word-break:break-word;max-height:46vh;overflow-y:auto}
.pop-foot{display:flex;gap:10px;margin-top:20px;padding-top:16px;border-top:1px solid var(--border)}
.pop-btn{flex:1;display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:12px;padding:12px 16px;font-size:14px;font-weight:600;cursor:pointer;font-family:inherit;transition:all .16s;line-height:1.4;min-height:46px}
.pop-btn.primary{background:var(--primary);color:#fff}
.pop-btn.primary:hover{background:var(--primary-d);box-shadow:0 8px 20px rgba(37,99,235,.3)}
.pop-btn.ghost{background:var(--bg);color:#4B5563;border:1px solid var(--border)}
.pop-btn.ghost:hover{background:#E8EDF4;color:var(--text)}

@media(max-width:760px){
  /* 手机端：公告从底部滑入，贴合单手操作与安全区 */
  .pop-mask{padding:0;align-items:flex-end}
  .pop-box{max-width:none;max-height:88vh;border-radius:20px 20px 0 0;padding:20px 18px calc(16px + env(safe-area-inset-bottom));animation:popUp .26s cubic-bezier(.2,.9,.3,1.05)}
  .pop-title{font-size:17px}
  .pop-body{font-size:14.5px;line-height:1.9;max-height:52vh}
  .pop-foot{flex-direction:column-reverse;gap:8px;margin-top:16px}
  .pop-btn{width:100%}
}
@keyframes popUp{from{transform:translateY(100%)}to{transform:translateY(0)}}

/* ---------- v1.4.1 移动端专门设计 ----------
   原则（来自 ui-ux-pro-max）：触控目标 ≥44×44px、相邻目标间距 ≥8px、
   移动优先、安全区留白、横向滑动替代换行、可见标签不依赖 placeholder。 */
@media(max-width:760px){
  /* 顶部导航：导航行也 sticky，随页面滚动始终可点；补齐刘海/底部安全区 */
  .top{padding-top:env(safe-area-inset-top)}
  .top-in{gap:8px 10px;padding:8px 0 0}
  .logo{font-size:15.5px}
  .logo img{width:26px;height:26px;border-radius:8px}
  /* 触控目标补足到 44px 高 */
  .nav a,.nav-drop-btn{min-height:44px;padding:10px 14px;font-size:14px}
  .top-act .btn.small{min-height:40px;padding:9px 14px;font-size:13px}
  .bell{width:44px;height:44px}
  .icon-btn{width:44px;height:44px}
  .btn{min-height:44px;padding:12px 22px;font-size:14.5px}
  .btn.small{min-height:40px}
  .chip{min-height:38px;padding:8px 15px}
  .pg a,.pg span{min-width:40px;min-height:40px;display:inline-flex;align-items:center;justify-content:center}
  .seg a{min-height:38px;padding:8px 14px;font-size:12.5px}
  /* 表单：字号 ≥16px 防止 iOS 自动缩放；输入框高 ≥48px */
  .inp{font-size:16px;padding:13px 14px;margin:8px 0}
  select.inp,textarea.inp{font-size:16px}
  .form{padding:24px 18px;border-radius:16px}
  .form h1,.form h2{font-size:18px}
  /* 帖子卡片：点赞/分享按钮扩大触控区并拉开间距 */
  .pc-act{min-height:44px;min-width:44px}
  .pc-head .pc-ava,.post-ava{width:40px;height:40px}
  .post-meta{gap:8px 10px}
  /* 侧栏热榜条目加大点击区 */
  .hot-item{min-height:48px;padding:12px 14px}
  /* 发帖弹窗：底部弹出 + 安全区 + 触控友好 */
  .modal{padding:18px 16px calc(18px + env(safe-area-inset-bottom))}
  .modal-close{width:44px;height:44px}
  .fab{width:56px;height:56px;right:16px;bottom:calc(20px + env(safe-area-inset-bottom))}
  /* 详情页回复操作按钮 */
  .ra-btn{min-height:38px;padding:8px 12px;font-size:12.5px}
  /* 底部导航式安全区：页脚留白，避免手势条遮挡 */
  .footer-dark{padding-bottom:calc(20px + env(safe-area-inset-bottom))}
}
@media(max-width:400px){
  /* 超小屏：进一步压缩留白，保证信息密度 */
  .wrap{padding:0 10px}
  .nav a,.nav-drop-btn{padding:10px 11px;font-size:13.5px}
  .logo{font-size:15px}
  .form{padding:20px 14px}
  .pop-box{padding:18px 15px calc(14px + env(safe-area-inset-bottom))}
}

/* ============================================================
   v1.4.2 Beta 新增
   ============================================================ */

/* ---------- 板块视图：版面内所有卡片去圆角（board.php 注入 body.board-view） ---------- */
body.board-view .card,
body.board-view .post-card,
body.board-view .seg,
body.board-view .seg a,
body.board-view .pg a,
body.board-view .pg span,
body.board-view .pc-thumb,
body.board-view .bb-count{border-radius:0}

/* ---------- 正文链接自动转超链接 ---------- */
.detail-content a.auto-link,.reply-content a.auto-link,.pop-body a.auto-link{color:var(--primary);text-decoration:underline;text-underline-offset:2px;word-break:break-all}
.detail-content a.auto-link:hover,.reply-content a.auto-link:hover,.pop-body a.auto-link:hover{color:var(--primary-d)}

/* ---------- 作者榜排序切换 ---------- */
.rank-switch{display:inline-flex;gap:2px;background:var(--bg);border:1px solid var(--border);border-radius:9px;padding:2px}
.rank-switch a{border:0;background:transparent;font-size:11.5px;color:var(--muted);padding:3px 9px;border-radius:7px;cursor:pointer;transition:all .14s}
.rank-switch a:hover{color:var(--primary)}
.rank-switch a.on{background:var(--primary);color:#fff;font-weight:600}

/* ---------- 卡片标题右侧链接（如「查看全部帖子」） ---------- */
.card-h .r a{color:var(--primary);font-weight:500}
.card-h .r a:hover{color:var(--primary-d);text-decoration:underline}

/* ---------- 移动端：导航栏改为底部「液态玻璃」胶囊栏 ----------
   注意：backdrop-filter 与 filter / transform 一样，会为 position:fixed 的后代
   创建包含块（containing block）。顶部栏 .top 原本带 backdrop-filter，若不移除，
   固定定位的 .nav 会相对 .top 而非视口定位。故移动端把 .top 改为实色。 */
@media(max-width:760px){
  .top{background:var(--surface);backdrop-filter:none;-webkit-backdrop-filter:none}
  .top-in{flex-wrap:nowrap;gap:8px;padding:8px 0}
  .top-act{gap:6px}
  .top-act .btn.small{padding:8px 11px;font-size:12.5px;min-height:38px}

  /* 导航栏：固定底部、居中胶囊、半透明 + 强模糊 + 高光内描边的玻璃质感 */
  .nav{position:fixed;left:50%;transform:translateX(-50%);
    bottom:calc(10px + env(safe-area-inset-bottom));
    width:calc(100% - 24px);max-width:520px;margin:0;padding:6px;
    order:0;overflow:visible;display:flex;align-items:stretch;justify-content:space-between;
    gap:4px;z-index:120;
    background:linear-gradient(180deg,rgba(255,255,255,.78),rgba(255,255,255,.6));
    backdrop-filter:blur(22px) saturate(190%);-webkit-backdrop-filter:blur(22px) saturate(190%);
    border:1px solid rgba(255,255,255,.72);border-radius:26px;
    box-shadow:0 0 0 1px rgba(15,23,42,.04),0 12px 34px rgba(15,23,42,.16),0 2px 8px rgba(15,23,42,.06),inset 0 1px 0 rgba(255,255,255,.92)}
  /* 导航项：图标在上、文字在下；触控目标 ≥52px */
  .nav a,.nav-drop-btn{flex:1;min-width:0;flex-direction:column;gap:3px;justify-content:center;
    min-height:52px;padding:7px 4px;font-size:11px;line-height:1.2;border-radius:20px;background:transparent}
  .nav .svg-ico{width:19px;height:19px}
  .nav a.on,.nav-drop-btn.on{background:rgba(37,99,235,.11)}
  /* 触屏点按后会残留 :hover，移动端屏蔽悬停底色 */
  .nav a:hover{background:transparent;color:#4B5563}
  .nav a.on:hover{background:rgba(37,99,235,.11);color:var(--primary)}
  .nav-drop{flex:1;display:flex}
  .nav-drop-btn{width:100%}
  .nav-drop-btn i{display:none}
  /* 下拉面板：由「向下弹出」改为「向上弹出」。
     移动端取消 .nav-drop 的 position:relative，让定位基准变成固定定位的 .nav 本身，
     面板左右对齐整条导航栏，避免以窄按钮为基准居中时在小屏溢出屏幕。 */
  .nav-drop-panel{position:absolute;left:0;right:0;
    top:auto;bottom:calc(100% + 12px);
    width:auto;min-width:0;max-height:54vh;overflow-y:auto;
    background:rgba(255,255,255,.9);border:1px solid rgba(255,255,255,.72);border-radius:18px;
    backdrop-filter:blur(22px) saturate(190%);-webkit-backdrop-filter:blur(22px) saturate(190%);
    box-shadow:0 14px 40px rgba(15,23,42,.2)}
  .nav-drop-panel a{flex-direction:row;min-height:44px;font-size:14px;padding:10px 14px}

  /* 让位：悬浮发帖按钮抬到导航栏之上，页脚与消息面板预留空间 */
  .fab{bottom:calc(92px + env(safe-area-inset-bottom))}
  .footer-dark{padding-bottom:calc(104px + env(safe-area-inset-bottom))}
  .bell-panel{top:calc(62px + env(safe-area-inset-top))}
}
@media(max-width:400px){
  .nav{padding:5px;border-radius:22px}
  .nav a,.nav-drop-btn{padding:6px 2px;font-size:10.5px}
  .top-act .btn.small{padding:7px 9px;font-size:11.5px}
}
/* 不支持 backdrop-filter 的浏览器：退化为不透明底，避免文字叠字看不清 */
@supports not ((backdrop-filter:blur(4px)) or (-webkit-backdrop-filter:blur(4px))){
  @media(max-width:760px){
    .nav{background:rgba(255,255,255,.98)}
    .nav-drop-panel{background:#fff}
  }
}

/* ---------- v1.6.0 帖子权限（公开 / 私密）与分享链接 ---------- */
.post-tag.priv{background:#EEF2F7;color:#5B6472;display:inline-flex;align-items:center;gap:4px}
.post-tag.priv .svg-ico{width:12px;height:12px}
/* AI 已扫描（判定正常）：弱化的通过标记，不抢正文视觉 */
.post-tag.aiscan{background:#ECFDF5;color:#059669;display:inline-flex;align-items:center;gap:3px}
.post-tag.aiscan .svg-ico{width:12px;height:12px}
.vis-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.vis-row .muted{flex-basis:100%;margin-top:2px}
.share-box{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.share-box .inp{flex:1;min-width:200px;margin:0;font-size:13px;color:var(--muted)}
.share-box .btn{white-space:nowrap}
@media(max-width:760px){
  .share-box .inp{min-width:0;flex-basis:100%}
  .share-box .btn{flex:1}
}

/* ---------- v1.6.0 我的申诉（个人中心） ---------- */
.appl-item{border:1px solid var(--border);border-radius:12px;padding:12px 14px;margin-bottom:10px;background:var(--surface)}
.appl-head{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13.5px}
.appl-head b{font-weight:700;color:var(--text)}
.appl-head .muted{font-size:12px}
.appl-item form{margin-top:8px}
.appl-item .btn.small{padding:6px 14px;font-size:12.5px}

/* ============================================================
   v2.0.0 个人中心重构 + 功能区
   ============================================================ */
.user-page{max-width:720px;margin:36px auto 0}
.uc-head{flex-wrap:wrap}
.uc-head-main{min-width:0;flex:1}
.uc-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:8px}
.uc-chip{display:inline-flex;align-items:center;gap:4px;font-size:11.5px;color:#5B6472;background:#F4F6FA;border-radius:999px;padding:3px 9px;line-height:1.6}
.uc-chip .svg-ico{color:#8B95A6}
.uc-chip.danger{background:var(--danger-soft);color:var(--danger)}
.uc-chip.danger .svg-ico{color:var(--danger)}
.uc-all-btn{flex-shrink:0}
.uc-posts{padding-top:4px;padding-bottom:4px}
.uc-post{padding-left:0;padding-right:0;border-radius:10px}
.uc-post .hot-rank{background:var(--primary-soft);color:var(--primary)}

/* 功能区：移动 2 列 / 桌面 4 列 */
.fn-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:16px}
@media(min-width:761px){.fn-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
.fn-item{display:flex;align-items:flex-start;gap:10px;padding:14px 12px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);transition:all .18s ease}
.fn-item:hover{transform:translateY(-2px);border-color:#BFDBFE;box-shadow:0 10px 24px rgba(37,99,235,.12)}
.fn-ico{width:36px;height:36px;border-radius:11px;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.fn-txt{min-width:0;display:flex;flex-direction:column;gap:2px}
.fn-txt b{font-size:13.5px;font-weight:700;color:var(--text);display:flex;align-items:center;gap:5px}
.fn-txt i{font-style:normal;font-size:11.5px;color:var(--muted);line-height:1.45}
.fn-dot{min-width:17px;height:17px;border-radius:999px;background:var(--danger);color:#fff;font-size:10.5px;font-style:normal;font-weight:700;display:inline-flex;align-items:center;justify-content:center;padding:0 5px}
@media(max-width:400px){
  .fn-item{padding:12px 10px;gap:8px}
  .fn-ico{width:32px;height:32px;border-radius:10px}
  .fn-txt b{font-size:12.5px}
  .fn-txt i{font-size:11px}
}

/* 账号页：标签页 / 行式设置 / 信用分 */
.acct-tabs{display:flex;gap:6px;overflow-x:auto;margin:14px 0;padding-bottom:2px;scrollbar-width:none}
.acct-tabs::-webkit-scrollbar{display:none}
.acct-tabs a{flex-shrink:0;padding:8px 15px;border-radius:999px;border:1px solid var(--border);background:var(--surface);font-size:13px;color:#5B6472;min-height:38px;display:inline-flex;align-items:center;transition:all .15s}
.acct-tabs a.on{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}
.acct-tabs a:not(.on):hover{border-color:var(--primary);color:var(--primary)}
.acct-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 0;border-bottom:1px solid var(--border);flex-wrap:wrap}
.acct-row:last-child{border-bottom:0}
.acct-row b{font-size:13.5px;font-weight:700}
.acct-row .muted{font-size:12px;margin-top:2px;line-height:1.5}
.credit-big{display:flex;align-items:baseline;gap:6px;margin:4px 0 10px}
.credit-big b{font-size:44px;font-weight:900;letter-spacing:-1.6px;color:var(--primary)}
.credit-big span{font-size:14px;color:var(--muted)}
.credit-bar{height:9px;border-radius:999px;background:#EEF2F7;overflow:hidden;margin-bottom:6px}
.credit-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),#60A5FA)}

/* 工单 */
.tk-body{font-size:14px;line-height:1.75;color:var(--text);word-break:break-word}
.tk-reply{margin-top:12px;padding:12px 14px;border-radius:11px;background:#F7F9FC;border:1px solid #EDF1F7;font-size:13.5px;line-height:1.7}
.tk-reply.admin{background:var(--primary-soft);border-color:#DBEAFE}
.tk-reply-h{display:flex;align-items:center;gap:8px;margin-bottom:4px}
.tk-reply-h b{font-size:12.5px}
.tk-reply-h .muted{font-size:11.5px;margin-left:auto}
.tk-list{padding-top:4px;padding-bottom:4px}
.tk-item{display:flex;align-items:center;gap:10px;padding:12px 0;border-bottom:1px solid var(--border)}
.tk-item:last-child{border-bottom:0}
.tk-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.tk-main b{font-size:13.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tk-main i{font-style:normal;font-size:11.5px;color:var(--muted)}
.tk-item .tagx{flex-shrink:0}

/* 系统公告 */
.nt-list{padding-top:4px;padding-bottom:4px}
.nt-item{display:flex;align-items:center;gap:11px;padding:13px 0;border-bottom:1px solid var(--border)}
.nt-item:last-child{border-bottom:0}
.nt-ico{width:34px;height:34px;border-radius:10px;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.nt-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.nt-main b{font-size:13.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nt-main i{font-style:normal;font-size:11.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nt-time{flex-shrink:0;font-size:11.5px}
.notice-title{font-size:20px;font-weight:800;line-height:1.4;margin-bottom:6px}
.notice-body{font-size:14.5px;line-height:1.85;color:var(--text);word-break:break-word}

/* 关于网站 */
.about-hero{text-align:center;padding-top:30px;padding-bottom:30px}
.about-hero img{width:76px;height:76px;border-radius:22px;box-shadow:0 10px 30px rgba(37,99,235,.22);margin-bottom:14px}
.about-hero h1{font-size:24px;font-weight:900;letter-spacing:-.5px}
.about-hero p{margin-top:6px}
.about-text{font-size:14px;line-height:1.85;color:#4B5563;word-break:break-word}
.about-text a{color:var(--primary);text-decoration:underline;text-underline-offset:2px}
.about-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;text-align:center}
.about-stats b{display:block;font-size:22px;font-weight:900;color:var(--primary);letter-spacing:-.5px}
.about-stats span{display:block;font-size:11.5px;color:var(--muted);margin-top:2px}
.about-list{list-style:none;display:flex;flex-direction:column;gap:10px;font-size:13.5px;color:#4B5563}
.about-list li{display:flex;align-items:flex-start;gap:8px;line-height:1.6}
.about-list .svg-ico{color:var(--accent);flex-shrink:0;margin-top:3px}
@media(max-width:400px){.about-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}}