* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --primary: #15a05a;
  --primary-dark: #0d7d44;
  --bg: #f5f7f6;
  --card: #ffffff;
  --text: #1f2d27;
  --muted: #8a958f;
  --border: #e6eae8;
  --danger: #e2554a;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  padding-bottom: calc(80px + env(safe-area-inset-bottom));
}
a { color: var(--primary); text-decoration: none; }
img { max-width: 100%; }

/* 顶部导航 */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: var(--primary); color: #fff;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px;
}
.topbar h1 { font-size: 18px; font-weight: 700; }
.topbar .actions a, .topbar .actions button {
  color: #fff; font-size: 14px; margin-left: 12px;
  background: rgba(255,255,255,.15); border: none; padding: 6px 12px; border-radius: 6px; cursor: pointer;
}

/* 容器 */
.container { max-width: 720px; margin: 0 auto; padding: 12px 16px; }

/* 分类/标签 */
.tabs { display: flex; gap: 8px; overflow-x: auto; padding: 10px 0; }
.tab {
  flex: 0 0 auto; padding: 6px 14px; border-radius: 20px;
  background: #fff; border: 1px solid var(--border); font-size: 13px; cursor: pointer;
}
.tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* 搜索 */
.search { display: flex; gap: 8px; margin: 10px 0; }
.search input { flex: 1; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; }
.search button { padding: 10px 16px; background: var(--primary); color: #fff; border: none; border-radius: 8px; }

/* 卡片 */
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 14px; margin-bottom: 12px;
}
.card .head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.avatar { width: 36px; height: 36px; border-radius: 50%; background: #d8e6df; display: flex; align-items: center; justify-content: center; color: var(--primary); font-weight: 700; }
.card h3 { font-size: 16px; margin-bottom: 6px; }
.card .meta { color: var(--muted); font-size: 12px; }
.card .summary { color: #45544c; font-size: 14px; margin: 6px 0; }
.tag { display: inline-block; font-size: 12px; padding: 2px 8px; border-radius: 4px; background: #e8f4ec; color: var(--primary); margin-right: 6px; }
.elite-badge { background: #fff4db; color: #c08a00; }
.card .stats { display: flex; gap: 16px; color: var(--muted); font-size: 13px; margin-top: 8px; }

/* 按钮 */
.btn { display: inline-block; padding: 10px 18px; background: var(--primary); color: #fff; border: none; border-radius: 8px; font-size: 15px; cursor: pointer; }
.btn.block { width: 100%; }
.btn.ghost { background: #fff; color: var(--primary); border: 1px solid var(--primary); }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* 主版块切换：论坛 / 精华 */
.board-tabs { display: flex; gap: 10px; padding: 6px 0 4px; }
.board-tab {
  flex: 1; text-align: center; padding: 10px 0; border-radius: 10px;
  background: #fff; border: 1px solid var(--border); font-size: 15px; font-weight: 600; cursor: pointer; color: var(--muted);
}
.board-tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* 上传配图（弹窗内复用） */
.upload-label {
  display: inline-block; padding: 8px 14px; background: #f0f6f3; color: var(--primary);
  border: 1px dashed var(--primary); border-radius: 8px; cursor: pointer; font-size: 13px;
}
.upload-label:hover { background: #e6f3ed; }
.image-preview { margin-top: 10px; display: flex; flex-wrap: wrap; }

/* 右下角：经验分享胶囊按钮 */
.fab {
  position: fixed; right: 20px; bottom: 80px; z-index: 60;
  padding: 12px 22px; border-radius: 28px; background: var(--primary);
  color: #fff; font-size: 15px; font-weight: 700; border: none; box-shadow: 0 4px 14px rgba(0,0,0,.2); cursor: pointer;
}

/* 经验分享弹窗（垂直居中） */
.publish-mask {
  position: fixed; inset: 0; z-index: 100; background: rgba(0,0,0,.45);
  display: none; align-items: center; justify-content: center;
}
.publish-mask.show { display: flex; }
.publish-mask .modal {
  background: #fff; width: 92%; max-width: 560px; border-radius: 16px;
  padding: 18px 16px calc(18px + env(safe-area-inset-bottom)); max-height: 80vh; overflow-y: auto;
  margin: 16px;
}
.publish-mask .modal-head { display: flex; align-items: center; justify-content: space-between; font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 14px; }
.publish-mask .modal-close { background: none; border: none; font-size: 26px; line-height: 1; color: var(--muted); cursor: pointer; }

/* 底部 tabbar */
.tabbar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 50;
  background: #fff; border-top: 1px solid var(--border);
  display: flex; justify-content: space-around;
  min-height: 60px;
  padding: 8px 0 max(8px, env(safe-area-inset-bottom));
  box-sizing: border-box;
}
.tabbar a {
  flex: 1;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; color: var(--muted); font-size: 14px; line-height: 1.4;
  padding: 6px 0;
  min-height: 44px;
  -webkit-tap-highlight-color: transparent;
}
.tabbar a.active { color: var(--primary); font-weight: 600; }

/* 表单 */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 14px; margin-bottom: 6px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px;
}
.form-group textarea { min-height: 140px; resize: vertical; }

/* 详情页 */
.detail-title { font-size: 20px; font-weight: 700; margin: 10px 0; }
.detail-content { font-size: 15px; white-space: pre-wrap; line-height: 1.8; }
/* 精华内容会员锁（非会员可见图片，正文隐藏） */
.vip-lock { text-align:center; padding:26px 16px; margin:12px 0; background:linear-gradient(180deg,#fffaf3,#fff); border:1px dashed #f0c48a; border-radius:12px; }
.vip-lock-icon { font-size:30px; }
.vip-lock-title { font-size:16px; font-weight:700; color:#b45309; margin:8px 0 4px; }
.vip-lock-desc { font-size:13px; color:#8a7a68; margin-bottom:16px; }
.vip-lock-btn { display:inline-block; padding:10px 26px; border-radius:22px; background:#f59e0b; color:#fff; text-decoration:none; font-size:14px; font-weight:600; }
.vip-lock-btn:hover { background:#d97706; }
.vip-lock-sub { margin-top:12px; font-size:12px; color:#aaa; }
.vip-lock-sub a { color:#15a05a; }
.detail-img { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0; }
.detail-img img { width: 100px; height: 100px; object-fit: cover; border-radius: 8px; }
.action-row { display: flex; gap: 12px; margin: 16px 0; }
.action-row .act { flex: 1; text-align: center; padding: 10px; border: 1px solid var(--border); border-radius: 8px; cursor: pointer; }
.act.liked { color: var(--primary); border-color: var(--primary); }

/* 评论 */
.comment { border-top: 1px solid var(--border); padding: 10px 0; }
.comment .meta { font-size: 12px; color: var(--muted); }

/* 弹窗 */
.modal-mask { position: fixed; inset: 0; background: rgba(0,0,0,.45); display: flex; align-items: center; justify-content: center; z-index: 80; }
.modal { background: #fff; border-radius: 12px; padding: 20px; width: 86%; max-width: 360px; }
.modal h3 { margin-bottom: 12px; }
.modal .close { float: right; cursor: pointer; color: var(--muted); }

/* 通用文字 */
.center { text-align: center; }
.muted { color: var(--muted); }
.toast { position: fixed; top: 20%; left: 50%; transform: translateX(-50%); background: rgba(0,0,0,.8); color: #fff; padding: 10px 18px; border-radius: 8px; z-index: 99; }
.hidden { display: none !important; }


/* 备案号 footer（淡色、不抢眼） */
.site-footer {
  text-align: center;
  font-size: 11px;
  color: #b3bcc0;
  line-height: 1.9;
  padding: 16px 12px 4px;
  margin-top: 4px;
}
.site-footer .sf-line + .sf-line { margin-top: 1px; }
.site-footer a { color: #b3bcc0; text-decoration: none; }