:root{
  --primary:#ffb300;      /* 亮金黄 v2 高饱和 */
  --primary-dark:#e08e00;
  --primary-soft:#fff3cc;
  --bg:#f6f5f2;
  --card:#fff;
  --text:#222;
  --text2:#888;
  --line:#eee;
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);padding-bottom:64px}

/* top bar */
.topbar{background:var(--primary);color:#fff;position:sticky;top:0;z-index:20}
.topbar-inner{max-width:640px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:12px 16px}
.brand{font-size:19px;font-weight:700}
.loc-status{font-size:13px;background:rgba(255,255,255,.22);padding:5px 12px;border-radius:999px;cursor:pointer;white-space:nowrap}
.loc-status.ok{background:rgba(0,0,0,.18)}

/* search */
.searchbar{max-width:640px;margin:10px auto 0;padding:0 16px;display:flex;gap:8px}
.searchbar input{flex:1;border:none;border-radius:8px;padding:9px 12px;font-size:14px;background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.06)}
.searchbar button{border:none;background:var(--primary);color:#fff;border-radius:8px;padding:9px 16px;font-size:14px}

/* chips */
.chips{max-width:640px;margin:10px auto;padding:0 16px;display:flex;gap:8px}
.chip{background:#fff;border-radius:999px;padding:6px 14px;font-size:13px;color:var(--text2);box-shadow:0 1px 2px rgba(0,0,0,.05)}
.chip.active{background:var(--primary);color:#fff;font-weight:600}

/* feed */
.feed{max-width:640px;margin:8px auto;padding:0 16px}
.card{background:var(--card);border-radius:12px;padding:14px;margin-bottom:12px;box-shadow:0 1px 3px rgba(0,0,0,.06)}
.card .row1{display:flex;justify-content:space-between;align-items:center}
.card .title{font-size:16px;font-weight:600}
.card .dist{font-size:12px;color:var(--primary-dark);font-weight:600;background:var(--primary-soft);padding:2px 8px;border-radius:999px}
.card .meta{display:flex;gap:12px;margin-top:6px;font-size:12px;color:var(--text2)}
.card .content{margin-top:8px;font-size:14px;color:#444;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card .imgs{display:flex;gap:6px;margin-top:8px}
.card .imgs img{width:76px;height:76px;object-fit:cover;border-radius:8px}
.card .foot{display:flex;justify-content:space-between;margin-top:10px;font-size:12px;color:var(--text2)}
.card .foot .avatar{width:22px;height:22px;border-radius:50%;display:inline-block;background:#ddd;text-align:center;line-height:22px;margin-right:5px;font-size:12px}

.empty,.loadmore{text-align:center;color:var(--text2);padding:40px 0;font-size:14px}
.hint{font-size:12px;margin-top:6px}

.icp{text-align:center;font-size:11px;color:#b5b5b5;padding:18px 0 8px}
.icp a{color:inherit;text-decoration:none}

/* fab */
.fab{position:fixed;right:20px;bottom:80px;width:54px;height:54px;border-radius:50%;border:none;background:var(--primary);color:#fff;font-size:30px;box-shadow:0 4px 14px rgba(255,179,0,.5);z-index:30;line-height:1}
.fab:active{transform:scale(.94)}

/* tabbar */
.tabbar{position:fixed;left:0;right:0;bottom:0;background:#fff;border-top:1px solid var(--line);display:flex;z-index:25}
.tab{flex:1;text-align:center;padding:8px 0 6px;font-size:18px;color:var(--text2);text-decoration:none}
.tab span{display:block;font-size:11px;margin-top:1px}
.tab.active{color:var(--primary)}

/* mine */
.mine{max-width:640px;margin:14px auto;padding:0 16px}
.mine-head{background:#fff;border-radius:12px;padding:18px;display:flex;align-items:center;gap:14px;margin-bottom:14px}
.avatar.big{width:52px;height:52px;border-radius:50%;background:var(--primary-soft);font-size:26px;text-align:center;line-height:52px}
.nick{font-size:16px;font-weight:600}
.sub{font-size:12px;color:var(--text2);margin-top:3px}
.myposts .card .del{color:#d33;border:1px solid #f1c1c1;background:#fff5f5;border-radius:6px;padding:4px 10px;font-size:12px}

/* modal */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:40;display:flex;align-items:flex-end;justify-content:center}
.modal-card{background:#fff;width:100%;max-width:640px;border-radius:16px 16px 0 0;padding:22px 20px 30px;max-height:86vh;overflow:auto}
.modal-card h3{font-size:17px;margin-bottom:6px}
.modal-sub{font-size:12px;color:var(--text2);margin-bottom:14px}
.modal-card input,.modal-card textarea,.modal-card select{width:100%;border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-size:14px;margin-bottom:12px;font-family:inherit}
.btn-primary{width:100%;border:none;background:var(--primary);color:#fff;border-radius:9px;padding:12px;font-size:15px;font-weight:600;margin-top:4px}
.btn-primary:disabled{background:#e6c87e}
.btn-ghost{width:100%;border:none;background:none;color:var(--text2);padding:10px;font-size:14px;margin-top:4px}
.pub-loc{font-size:13px;color:var(--primary);margin:-4px 0 10px}
.pub-exp{font-size:13px;color:#444;margin-bottom:12px}
.pub-exp select{width:auto;margin-left:6px}

/* detail */
.detail-title{font-size:18px;font-weight:700;margin-bottom:8px}
.detail-meta{font-size:12px;color:var(--text2);margin-bottom:10px}
.detail-content{font-size:15px;line-height:1.6;margin-bottom:14px;white-space:pre-wrap}
.detail-imgs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.detail-imgs img{width:100px;height:100px;object-fit:cover;border-radius:8px}
.cmt{border-top:1px solid var(--line);padding:10px 0;font-size:14px}
.cmt .who{font-size:12px;color:var(--text2);margin-bottom:3px}
.cmt .who b{color:var(--text)}
.cmt-del{color:#d33;font-size:12px;cursor:pointer;float:right}
.cmt-box{margin-top:12px}
.cmt-box textarea{width:100%;border:1px solid var(--line);border-radius:8px;padding:10px;font-size:14px;font-family:inherit;min-height:64px}
.cmt-box button{margin-top:8px}