/* ============================================================
   小康AI芝士补给站 · 设计系统 v1.0
   风格：靛紫科技风（暗色毛玻璃）
   规范：正文 ≥16px / 辅助 ≥13px / 卡片圆角 14px / 触控目标 ≥44px
   ============================================================ */

:root{
  --bg:#0B0E17;
  --bg2:#111827;
  --card:rgba(255,255,255,.045);
  --card-hover:rgba(255,255,255,.075);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --accent:#6366F1;
  --accent2:#8B5CF6;
  --accent-soft:rgba(99,102,241,.14);
  --gold:#C5A55A;
  --green:#00C087;
  --red:#FF4757;
  --orange:#FF9F43;
  --text:#E8EAF2;
  --text2:#C3CAD8;
  --muted:#9AA3B8;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --maxw:1200px;
  --nav-h:60px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(760px 420px at 12% -6%, rgba(99,102,241,.16), transparent 65%),
    radial-gradient(620px 360px at 92% 4%, rgba(139,92,246,.13), transparent 62%);
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
b,strong{color:#fff;font-weight:650}
code{
  background:rgba(139,92,246,.16);color:#C4B5FD;border-radius:5px;
  padding:1.5px 6px;font-size:14px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
::selection{background:rgba(99,102,241,.35)}

/* ---------- 布局 ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 18px;position:relative;z-index:1}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 312px;gap:26px;align-items:start}
.main{min-width:0}
.side{position:sticky;top:calc(var(--nav-h) + 18px)}

/* ---------- 顶部导航 ---------- */
.nav{
  position:sticky;top:0;z-index:60;height:var(--nav-h);
  background:rgba(11,14,23,.80);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:0 18px;height:100%;display:flex;align-items:center;gap:22px}
.logo{font-weight:800;font-size:19px;letter-spacing:-.3px;white-space:nowrap;
  background:linear-gradient(100deg,#fff,#A5B4FC 60%,#8B5CF6);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.logo span{font-size:12px;font-weight:600;color:var(--muted);-webkit-text-fill-color:var(--muted);margin-left:7px;letter-spacing:0}
.nav-links{display:flex;gap:4px;align-items:center;flex:1}
.nav-links a{
  padding:8px 13px;border-radius:9px;font-size:15px;color:var(--text2);
  transition:.16s;white-space:nowrap
}
.nav-links a:hover{background:var(--card);color:#fff}
.nav-links a.on{background:var(--accent-soft);color:#C7D2FE;font-weight:600}
.nav-right{display:flex;gap:9px;align-items:center}
.nav-search{
  display:flex;align-items:center;gap:7px;background:var(--card);border:1px solid var(--line);
  border-radius:10px;padding:7px 12px;min-width:180px;transition:.16s
}
.nav-search:focus-within{border-color:rgba(99,102,241,.55);background:rgba(99,102,241,.07)}
.nav-search input{background:none;border:none;outline:none;width:100%;font-size:14.5px}
.nav-search input::placeholder{color:var(--muted)}
.btn-ask{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:10px;font-size:14.5px;font-weight:600;color:#fff;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  box-shadow:0 6px 18px rgba(99,102,241,.32);transition:.16s;white-space:nowrap
}
.btn-ask:hover{transform:translateY(-1px);box-shadow:0 8px 22px rgba(99,102,241,.45)}
.nav-burger{display:none;background:var(--card);border:1px solid var(--line);border-radius:9px;
  width:40px;height:40px;align-items:center;justify-content:center;cursor:pointer;font-size:17px}

/* ---------- 通用组件 ---------- */
.hero{position:relative;padding:46px 0 26px}
.hero h1{
  font-size:38px;line-height:1.25;font-weight:800;letter-spacing:-.6px;
  background:linear-gradient(100deg,#fff 8%,#A5B4FC 52%,#8B5CF6 96%);
  -webkit-background-clip:text;background-clip:text;color:transparent
}
.hero p.sub{margin-top:14px;font-size:17px;color:var(--muted);max-width:760px}
.tagline{display:inline-block;font-size:13px;color:var(--gold);
  border:1px solid rgba(197,165,90,.38);border-radius:999px;padding:3px 13px;margin-bottom:15px}

.sec-head{display:flex;align-items:center;justify-content:space-between;gap:14px;
  margin:34px 0 15px;flex-wrap:wrap}
.sec-head h2{font-size:22px;font-weight:750;letter-spacing:-.3px;display:flex;align-items:center;gap:10px}
.sec-head h2::before{content:"";width:4px;height:20px;border-radius:3px;
  background:linear-gradient(180deg,var(--accent),var(--accent2))}
.more{font-size:14px;color:var(--muted);transition:.16s}
.more:hover{color:#C7D2FE}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;transition:.18s}
.card:hover{background:var(--card-hover);border-color:var(--line-strong)}
.card.pad{padding:22px 24px}

.grid{display:grid;gap:14px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}

/* ---------- 内容卡片 ---------- */
.acard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;transition:.18s;display:flex;flex-direction:column;height:100%}
.acard:hover{background:var(--card-hover);border-color:rgba(99,102,241,.42);
  transform:translateY(-2px)}
.acard .meta{display:flex;gap:9px;align-items:center;flex-wrap:wrap;margin-bottom:9px;
  font-size:13px;color:var(--muted)}
.acard h3{font-size:17.5px;font-weight:700;line-height:1.45;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.acard p{font-size:14.5px;line-height:1.7;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.acard .foot{margin-top:auto;padding-top:12px;display:flex;gap:10px;flex-wrap:wrap;
  font-size:13px;color:var(--muted)}

.chip{display:inline-block;font-size:12.5px;font-weight:600;border-radius:7px;padding:2px 9px;
  background:var(--accent-soft);color:#C7D2FE;border:1px solid rgba(99,102,241,.28)}
.chip.gold{background:rgba(197,165,90,.14);color:#DFC98A;border-color:rgba(197,165,90,.32)}
.chip.green{background:rgba(0,192,135,.13);color:#4BD8AC;border-color:rgba(0,192,135,.3)}
.chip.red{background:rgba(255,71,87,.13);color:#FF8A94;border-color:rgba(255,71,87,.3)}
.chip.gray{background:rgba(154,163,184,.12);color:var(--muted);border-color:var(--line)}
.chip.vip{background:linear-gradient(135deg,rgba(197,165,90,.9),rgba(197,165,90,.6));
  color:#1a1405;border-color:transparent}

/* ---------- 首页 Hero ---------- */
.home-hero{
  background:linear-gradient(150deg,rgba(99,102,241,.15),rgba(139,92,246,.06) 55%,transparent);
  border:1px solid rgba(99,102,241,.28);border-radius:18px;padding:32px 30px;margin-top:26px
}
.home-hero h1{font-size:33px;line-height:1.28;font-weight:800;letter-spacing:-.5px}
.home-hero p{margin-top:12px;font-size:16.5px;color:var(--text2);max-width:720px}
.hero-actions{margin-top:22px;display:flex;gap:12px;flex-wrap:wrap}
.btn{padding:12px 22px;border-radius:11px;font-size:15.5px;font-weight:650;
  border:1px solid var(--line);background:var(--card);cursor:pointer;transition:.16s;
  display:inline-flex;align-items:center;gap:7px;min-height:44px}
.btn:hover{background:var(--card-hover);border-color:var(--line-strong)}
.btn.primary{background:linear-gradient(135deg,var(--accent),var(--accent2));
  border-color:transparent;color:#fff;box-shadow:0 8px 22px rgba(99,102,241,.34)}
.btn.primary:hover{transform:translateY(-1px);box-shadow:0 10px 26px rgba(99,102,241,.46)}
.btn.sm{padding:7px 14px;font-size:14px;min-height:36px;border-radius:9px}
.btn.danger{border-color:rgba(255,71,87,.4);color:#FF8A94}
.btn.danger:hover{background:rgba(255,71,87,.12)}

.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:24px}
.stat{background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:12px;
  padding:14px 16px;text-align:center}
.stat .n{font-size:23px;font-weight:800;color:#A5B4FC;line-height:1.2}
.stat .l{font-size:13px;color:var(--muted);margin-top:4px}

/* ---------- 频道切换条 ---------- */
.tabs{display:flex;gap:8px;overflow-x:auto;padding:4px 0 10px;
  -webkit-overflow-scrolling:touch;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tabs a{padding:8px 15px;border-radius:10px;font-size:14.5px;color:var(--muted);
  border:1px solid var(--line);background:var(--card);white-space:nowrap;transition:.16s}
.tabs a:hover{color:#fff;border-color:var(--line-strong)}
.tabs a.on{background:var(--accent-soft);color:#C7D2FE;border-color:rgba(99,102,241,.45);font-weight:600}

.page-head{padding:30px 0 6px}
.page-head h1{font-size:29px;font-weight:800;letter-spacing:-.4px}
.page-head p{margin-top:9px;font-size:16px;color:var(--muted);max-width:760px}
.crumb{font-size:13.5px;color:var(--muted);margin-bottom:12px}
.crumb a:hover{color:#C7D2FE}

/* ---------- 列表 ---------- */
.list{display:grid;gap:13px}
.pager{display:flex;gap:9px;justify-content:center;align-items:center;margin:30px 0 10px;flex-wrap:wrap}
.pager a,.pager span{padding:8px 15px;border-radius:9px;border:1px solid var(--line);
  background:var(--card);font-size:14.5px;min-height:40px;display:inline-flex;align-items:center}
.pager a:hover{border-color:rgba(99,102,241,.45);color:#C7D2FE}
.pager .cur{background:var(--accent-soft);color:#C7D2FE;border-color:rgba(99,102,241,.45)}
.pager .off{opacity:.4;pointer-events:none}

.empty{text-align:center;padding:60px 20px;color:var(--muted)}
.empty .ico{font-size:42px;margin-bottom:14px;opacity:.7}
.empty p{font-size:15.5px;margin-bottom:16px}

/* ---------- 文章正文 ---------- */
.article{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 34px}
.article-head h1{font-size:29px;line-height:1.35;font-weight:800;letter-spacing:-.4px}
.article-meta{display:flex;gap:14px;flex-wrap:wrap;margin-top:14px;font-size:13.5px;color:var(--muted);
  padding-bottom:18px;border-bottom:1px solid var(--line)}
.notice{margin:18px 0;padding:13px 16px;border-radius:11px;font-size:14.5px;
  background:rgba(255,159,67,.09);border:1px solid rgba(255,159,67,.3);color:#FFD3A0}
.notice.info{background:var(--accent-soft);border-color:rgba(99,102,241,.3);color:#C7D2FE}
.body{font-size:16.5px;line-height:1.92;color:var(--text2);margin-top:20px}
.body h2{font-size:23px;color:#fff;margin:30px 0 13px;font-weight:750}
.body h3,.body .md-h3{font-size:20px;color:#fff;margin:28px 0 12px;font-weight:700}
.body h4{font-size:17.5px;color:#C7D2FE;margin:22px 0 10px;font-weight:700}
.body p{margin:13px 0}
.body ul,.body ol{margin:13px 0 13px 24px}
.body li{margin:7px 0}
.body blockquote{border-left:3px solid var(--accent);background:var(--accent-soft);
  padding:11px 16px;border-radius:0 10px 10px 0;margin:15px 0;color:#C7D2FE;font-size:15.5px}
.body hr{border:none;height:1px;background:var(--line);margin:26px 0}
.body pre{background:rgba(0,0,0,.42);border:1px solid var(--line);border-radius:11px;
  padding:16px;overflow-x:auto;margin:16px 0;font-size:14px;line-height:1.7}
.body pre code{background:none;color:#C9D1E4;padding:0}
.body a{color:#A5B4FC;border-bottom:1px solid rgba(165,180,252,.35)}
.body a:hover{color:#C7D2FE}
.tw{overflow-x:auto;margin:18px 0;border:1px solid var(--line);border-radius:12px}
.body table{width:100%;border-collapse:collapse;font-size:15px;min-width:480px}
.body th{background:rgba(99,102,241,.13);color:#C7D2FE;text-align:left;padding:11px 13px;
  font-weight:650;font-size:14.5px;white-space:nowrap}
.body td{padding:10px 13px;border-top:1px solid var(--line);color:var(--text2)}
.body tbody tr:nth-child(even){background:rgba(255,255,255,.018)}

.tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:22px}
.source{margin-top:24px;padding:15px 18px;border-radius:12px;background:rgba(255,255,255,.028);
  border:1px solid var(--line);font-size:14.5px;color:var(--muted)}
.source a{color:#A5B4FC;word-break:break-all}

/* ---------- 工具卡 ---------- */
.tool{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:17px 19px;transition:.18s;display:flex;flex-direction:column;height:100%}
.tool:hover{background:var(--card-hover);border-color:rgba(99,102,241,.42);transform:translateY(-2px)}
.tool .top{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}
.tool h3{font-size:17px;font-weight:700}
.tool .tagline{font-size:14.5px;color:var(--muted);margin-top:6px;line-height:1.65}
.tool .row{margin-top:12px;display:flex;gap:7px;flex-wrap:wrap}
.tool .foot{margin-top:auto;padding-top:13px;display:flex;justify-content:space-between;
  align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.rating{color:var(--gold);font-weight:700;font-size:14px}

.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px;align-items:center}
.filters form{display:flex;gap:9px;flex-wrap:wrap;align-items:center;width:100%}
.input{background:var(--card);border:1px solid var(--line);border-radius:10px;
  padding:10px 13px;font-size:15px;outline:none;transition:.16s;min-height:44px}
.input:focus{border-color:rgba(99,102,241,.55);background:rgba(99,102,241,.07)}
.input::placeholder{color:var(--muted)}
select.input{cursor:pointer}

/* ---------- 问答 ---------- */
.ask-wrap{max-width:880px;margin:0 auto;padding-bottom:120px}
.ask-box{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;position:sticky;bottom:0}
.ask-input{display:flex;gap:10px;align-items:flex-end}
.ask-input textarea{flex:1;background:rgba(255,255,255,.03);border:1px solid var(--line);
  border-radius:11px;padding:12px 14px;font-size:16px;resize:none;outline:none;
  min-height:52px;max-height:160px;line-height:1.6}
.ask-input textarea:focus{border-color:rgba(99,102,241,.55)}
.chat{display:grid;gap:16px;margin-top:8px}
.msg{display:flex;gap:12px;align-items:flex-start}
.msg .av{flex:0 0 34px;width:34px;height:34px;border-radius:10px;display:flex;
  align-items:center;justify-content:center;font-size:16px;
  background:linear-gradient(135deg,var(--accent),var(--accent2))}
.msg.user .av{background:rgba(255,255,255,.1)}
.msg .bub{flex:1;min-width:0;background:var(--card);border:1px solid var(--line);
  border-radius:12px;padding:14px 17px;font-size:16px;line-height:1.82;color:var(--text2)}
.msg.user .bub{background:var(--accent-soft);border-color:rgba(99,102,241,.3);color:var(--text)}
.cites{margin-top:14px;padding-top:13px;border-top:1px dashed var(--line)}
.cites .t{font-size:13px;color:var(--muted);margin-bottom:8px}
.cite{display:block;padding:10px 13px;border-radius:10px;background:rgba(99,102,241,.09);
  border:1px solid rgba(99,102,241,.24);margin-bottom:8px;font-size:14.5px;color:#C7D2FE;transition:.16s}
.cite:hover{background:rgba(99,102,241,.16)}
.sugg{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.sugg button{padding:7px 13px;border-radius:9px;border:1px solid var(--line);
  background:var(--card);font-size:13.5px;color:var(--muted);cursor:pointer;transition:.16s}
.sugg button:hover{color:#C7D2FE;border-color:rgba(99,102,241,.45)}

/* ---------- 表单 ---------- */
.form-grid{display:grid;gap:15px;grid-template-columns:repeat(2,minmax(0,1fr))}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:14.5px;color:var(--text2);font-weight:600}
.field label .req{color:var(--red);margin-left:3px}
.field .err{font-size:13.5px;color:#FF8A94}
.field input,.field select,.field textarea{
  background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:10px;
  padding:11px 13px;font-size:15.5px;outline:none;transition:.16s;min-height:44px;width:100%}
.field textarea{min-height:110px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:rgba(99,102,241,.55);background:rgba(99,102,241,.07)}
.field input.bad,.field textarea.bad{border-color:rgba(255,71,87,.6)}
.hint{font-size:13px;color:var(--muted)}

/* ---------- 提示 ---------- */
.toast{position:fixed;left:50%;bottom:80px;transform:translateX(-50%) translateY(20px);
  background:rgba(17,24,39,.96);border:1px solid var(--line-strong);border-radius:11px;
  padding:12px 20px;font-size:15px;color:#fff;box-shadow:var(--shadow);
  opacity:0;pointer-events:none;transition:.24s;z-index:200;max-width:88vw;text-align:center}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.ok{border-color:rgba(0,192,135,.45)}
.toast.bad{border-color:rgba(255,71,87,.5)}

.loading{display:inline-flex;gap:5px;align-items:center;color:var(--muted);font-size:15px}
.dot{width:6px;height:6px;border-radius:50%;background:var(--accent);animation:bl 1.2s infinite}
.dot:nth-child(2){animation-delay:.2s}
.dot:nth-child(3){animation-delay:.4s}
@keyframes bl{0%,60%,100%{opacity:.28}30%{opacity:1}}

.skl{background:linear-gradient(90deg,rgba(255,255,255,.04),rgba(255,255,255,.09),rgba(255,255,255,.04));
  background-size:200% 100%;animation:sk 1.4s infinite;border-radius:8px}
@keyframes sk{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* ---------- 页脚 ---------- */
.foot{margin-top:60px;border-top:1px solid var(--line);padding:30px 0 40px;
  font-size:14px;color:var(--muted)}
.foot-in{max-width:var(--maxw);margin:0 auto;padding:0 18px;display:flex;
  justify-content:space-between;gap:20px;flex-wrap:wrap}
.foot a:hover{color:#C7D2FE}
.foot .cols{display:flex;gap:24px;flex-wrap:wrap}

/* ---------- 移动端底部导航 ---------- */
.mobar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;height:58px;
  background:rgba(11,14,23,.94);backdrop-filter:blur(14px);
  border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}
.mobar-in{display:grid;grid-template-columns:repeat(5,1fr);height:58px}
.mobar a{display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:2px;font-size:11.5px;color:var(--muted)}
.mobar a .i{font-size:19px;line-height:1}
.mobar a.on{color:#C7D2FE}
.mobar .mid{position:relative}
.mobar .mid .i{
  position:absolute;top:-20px;width:50px;height:50px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  display:flex;align-items:center;justify-content:center;font-size:21px;
  box-shadow:0 8px 22px rgba(99,102,241,.5);border:3px solid var(--bg)
}

/* ---------- 后台 ---------- */
.admin-nav{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0 22px}
.admin-nav a{padding:9px 16px;border-radius:10px;border:1px solid var(--line);
  background:var(--card);font-size:14.5px;color:var(--muted)}
.admin-nav a.on{background:var(--accent-soft);color:#C7D2FE;border-color:rgba(99,102,241,.45)}
table.data{width:100%;border-collapse:collapse;font-size:14.5px}
table.data th{background:rgba(99,102,241,.13);color:#C7D2FE;text-align:left;
  padding:11px 13px;font-weight:650;font-size:14px;white-space:nowrap}
table.data td{padding:11px 13px;border-top:1px solid var(--line);color:var(--text2);vertical-align:top}
table.data tbody tr:hover{background:rgba(255,255,255,.025)}
table.data .act{display:flex;gap:6px;flex-wrap:wrap}
table.data .act button,table.data .act a{
  padding:5px 11px;border-radius:8px;border:1px solid var(--line);background:var(--card);
  font-size:13px;cursor:pointer;transition:.16s;color:var(--text2)}
table.data .act button:hover{border-color:rgba(99,102,241,.45);color:#C7D2FE}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:13px;margin-bottom:20px}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:17px 19px}
.kpi .n{font-size:27px;font-weight:800;color:#A5B4FC;line-height:1.15}
.kpi .l{font-size:13.5px;color:var(--muted);margin-top:5px}
.bars{display:flex;gap:8px;align-items:flex-end;height:130px;padding:10px 0}
.bar-item{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px;height:100%;justify-content:flex-end}
.bar{width:100%;max-width:46px;border-radius:6px 6px 0 0;
  background:linear-gradient(180deg,var(--accent),rgba(99,102,241,.32));min-height:3px;transition:.3s}
.bar-item .v{font-size:12.5px;color:var(--muted)}
.bar-item .d{font-size:12.5px;color:var(--muted);white-space:nowrap}

/* ---------- 响应式 ---------- */
@media (max-width:1000px){
  .layout{grid-template-columns:1fr}
  .side{position:static}
  .nav-search{display:none}
}
@media (max-width:768px){
  body{font-size:16px}
  .nav-in{gap:12px;padding:0 14px}
  .nav-links{display:none}
  .nav-burger{display:flex}
  .logo{font-size:17px}
  .logo span{display:none}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .kpis{grid-template-columns:repeat(2,1fr)}
  .form-grid{grid-template-columns:1fr}
  .article{padding:22px 18px}
  .article-head h1{font-size:23px}
  .body{font-size:16.5px}
  .home-hero{padding:24px 18px}
  .home-hero h1{font-size:25px}
  .hero h1{font-size:27px}
  .page-head h1{font-size:23px}
  .mobar{display:block}
  .wrap{padding:0 14px}
  .foot{padding-bottom:76px}
  .toast{bottom:76px}
  .md-hide{display:none}
  .desk-only{display:none}
}
@media (min-width:769px){
  .mob-only{display:none}
}
input,select,textarea{font-size:16px}
@media (max-width:768px){
  .field input,.field select,.field textarea,.input{font-size:16px}
}

/* ---------- 抽屉菜单（移动端） ---------- */
.drawer{position:fixed;inset:0;z-index:120;background:rgba(0,0,0,.55);
  opacity:0;pointer-events:none;transition:.22s}
.drawer.on{opacity:1;pointer-events:auto}
.drawer-panel{position:absolute;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:var(--bg2);border-left:1px solid var(--line);padding:22px 18px;
  overflow-y:auto;transform:translateX(100%);transition:.26s}
.drawer.on .drawer-panel{transform:translateX(0)}
.drawer h4{font-size:13px;color:var(--muted);font-weight:700;margin:18px 0 9px;
  letter-spacing:.5px;text-transform:uppercase}
.drawer a{display:block;padding:11px 13px;border-radius:10px;font-size:15.5px;
  color:var(--text2);transition:.16s}
.drawer a:hover,.drawer a.on{background:var(--accent-soft);color:#C7D2FE}
.drawer .close{position:absolute;top:16px;right:16px;width:38px;height:38px;
  border-radius:10px;background:var(--card);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:17px}