/* ===== 辅理善邮箱 · 163 风格应用界面 ===== */
:root{
  --blue:#2b6cd4; --blue-dark:#1f56ad; --blue-soft:#eaf2fd;
  --bg:#f2f4f7; --line:#e6e8eb; --line-strong:#dcdfe4;
  --text:#22242a; --dim:#7a7f87; --weak:#a4a9b2; --hover:#f5f9ff;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font:13px/1.6 -apple-system,"PingFang SC","Microsoft YaHei","Segoe UI",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--blue);text-decoration:none}

/* ---------- 顶栏 ---------- */
.hd{
  height:56px;background:#fff;border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:18px;padding:0 18px;position:relative;z-index:20;
}
.hd-brand{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:#19304f;white-space:nowrap;text-decoration:none!important}
.hd-logo{width:28px;height:28px;border-radius:5px;background:linear-gradient(135deg,#3d8ce8,#1f56ad);color:#fff;display:grid;place-items:center;font-size:15px}
.hd-tabs{display:flex;gap:2px;margin-left:4px}
.hd-tabs a{padding:7px 15px;color:#3a3f47;font-size:13.5px;border-radius:4px;text-decoration:none}
.hd-tabs a:hover{background:var(--hover);color:var(--blue)}
.hd-tabs a.on{background:var(--blue);color:#fff;font-weight:600}
.hd-search{flex:1;max-width:420px;margin-left:auto;position:relative}
.hd-search input{width:100%;height:30px;border:1px solid var(--line-strong);border-radius:15px;padding:0 62px 0 13px;font:13px/1.5 inherit;outline:none;background:#fafbfc}
.hd-search input:focus{border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px rgba(43,108,212,.08)}
.hd-search button{position:absolute;right:3px;top:3px;height:24px;padding:0 12px;border:none;border-radius:12px;background:var(--blue);color:#fff;font-size:12px;cursor:pointer}
.hd-user{display:flex;align-items:center;gap:12px;color:var(--dim);font-size:13px;white-space:nowrap}
.hd-user b{color:#19304f}
.hd-user a{color:var(--dim)}
.hd-user a:hover{color:var(--blue)}

/* ---------- 视图 ---------- */
.view{display:none}
.view.on{display:block}
.app{display:grid;grid-template-columns:180px 440px 1fr;height:calc(100vh - 56px)}

/* ---------- 左栏 ---------- */
.side{background:#fff;border-right:1px solid var(--line);padding:10px;display:flex;flex-direction:column;overflow-y:auto}
.compose-btn{width:100%;height:36px;border:none;border-radius:4px;cursor:pointer;background:linear-gradient(135deg,#3d8ce8,#1f56ad);color:#fff;font-size:14px;font-weight:600;box-shadow:0 2px 6px rgba(43,108,212,.22);display:flex;align-items:center;justify-content:center;gap:6px;margin-bottom:10px;flex:0 0 auto}
.compose-btn:hover{filter:brightness(1.06)}
.folders{list-style:none;margin:0;padding:0}
.folders li{display:flex;align-items:center;justify-content:space-between;gap:6px;padding:7px 9px;border-radius:4px;cursor:pointer;color:#3a3f47;font-size:13px;transition:.12s}
.folders li:hover{background:var(--hover)}
.folders li.active{background:var(--blue-soft);color:var(--blue);font-weight:600}
.folders li .count{font-size:11.5px;color:var(--weak)}
.folders .icon{width:16px;text-align:center;margin-right:3px;opacity:.8}

/* ---------- 列表 ---------- */
.list{background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;min-width:0}
.list-head{height:46px;display:flex;align-items:center;gap:8px;padding:0 12px;border-bottom:1px solid var(--line);flex:0 0 auto}
.list-head h2{font-size:14px;margin:0;font-weight:700;color:#19304f}
.list-head .ops{margin-left:auto;display:flex;gap:6px}
.iconbtn{height:24px;min-width:26px;padding:0 6px;border:1px solid var(--line-strong);background:#fff;border-radius:3px;font-size:12px;color:var(--dim);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:3px;white-space:nowrap;flex:0 0 auto}
.iconbtn:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-soft)}
.list-status{height:30px;display:flex;align-items:center;gap:10px;padding:0 12px;border-bottom:1px solid #f2f3f5;color:var(--dim);font-size:12.5px;flex:0 0 auto}
.list-status a{color:var(--blue);cursor:pointer}
.list-toolbar{height:36px;display:flex;align-items:center;gap:6px;padding:0 10px;border-bottom:1px solid var(--line);background:#fafbfc;flex:0 0 auto;overflow-x:auto}
.list-toolbar .chk{display:flex;align-items:center;gap:5px;color:var(--dim);font-size:12.5px;cursor:pointer}
.list-toolbar .spacer{flex:1}
.list-toolbar .total{color:var(--weak);font-size:12px}
.msglist{list-style:none;margin:0;padding:0;overflow-y:auto;flex:1 1 auto}
.group{padding:5px 12px;background:#f7f8fa;color:var(--weak);font-size:12px;border-bottom:1px solid #f2f3f5;border-top:1px solid #f2f3f5}
.msg{display:grid;grid-template-columns:14px 16px 18px 136px 1fr 50px;align-items:center;gap:8px;height:44px;padding:0 12px;border-bottom:1px solid #f4f5f7;cursor:pointer;transition:background .12s}
.msg:hover{background:var(--hover)}
.msg.active{background:var(--blue-soft)}
.msg input[type=checkbox]{margin:0;cursor:pointer}
.msg .star{color:#c9ced6;font-size:13px;cursor:pointer;text-align:center;line-height:1}
.msg .star:hover{color:#f5a623}
.msg .star.on{color:#f5a623}
.msg .env{font-size:14px;color:#b9bec7}
.msg.unread .env{color:#f0a020}
.msg .from{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#3a3f47}
.msg .subject{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#2b2f36}
.msg .time{text-align:right;color:var(--weak);font-size:12px}
.msg.unread .from,.msg.unread .subject{font-weight:700;color:#1b1e24}
.empty-row{padding:40px 12px;text-align:center;color:var(--weak);list-style:none;font-size:13px}

/* ---------- 阅读窗格 ---------- */
.reader{background:#fff;display:flex;flex-direction:column;min-width:0;overflow:hidden}
.reader-empty{flex:1;display:flex;flex-direction:row;align-items:center;justify-content:center;gap:14px;color:var(--weak);font-size:13px}
.reader-empty .big{font-size:34px;opacity:.3}
.reader-head{padding:16px 22px 12px;border-bottom:1px solid var(--line);flex:0 0 auto;display:flex;gap:12px}
.avatar{width:36px;height:36px;border-radius:50%;flex:0 0 36px;display:grid;place-items:center;background:linear-gradient(135deg,#3d8ce8,#1f56ad);color:#fff;font-weight:700;font-size:15px;text-transform:uppercase}
.reader-head .head-main{min-width:0;flex:1}
.reader-head h1{font-size:16.5px;margin:0 0 8px;line-height:1.45;font-weight:700;color:#19304f;word-break:break-word}
.meta{display:flex;flex-wrap:wrap;gap:14px;color:var(--dim);font-size:12.5px}
.meta b{color:#3a3f47;font-weight:600}
.reader-tools{display:flex;gap:6px;padding:9px 22px;border-bottom:1px solid var(--line);background:#fafbfc;flex:0 0 auto;align-items:center}
.reader-body{flex:1 1 auto;overflow:auto}
.reader-body iframe{width:100%;height:100%;border:none;display:block}
.reader-body pre{margin:0;padding:18px 22px;white-space:pre-wrap;word-break:break-word;font:14px/1.8 inherit}
.attach{padding:10px 22px;border-top:1px solid var(--line);font-size:12.5px;color:var(--dim);display:flex;gap:12px;flex-wrap:wrap}
.att-link{display:inline-flex;align-items:center;gap:4px;border:1px solid var(--line);border-radius:3px;padding:2px 8px;background:#fafbfc;font-size:12.5px;color:var(--blue)}.att-link:hover{background:var(--blue-soft);text-decoration:none}

/* ---------- 写信页 ---------- */
.compose-page{max-width:1000px;margin:18px auto 40px;padding:0 20px}
.compose-card{background:#fff;border:1px solid var(--line);border-radius:6px;box-shadow:0 2px 8px rgba(0,0,0,.04);overflow:hidden}
.compose-top{height:46px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;border-bottom:1px solid var(--line);background:#fafbfc}
.compose-top h2{margin:0;font-size:14px;color:#19304f}
.compose-close{border:none;background:transparent;color:var(--dim);font-size:18px;cursor:pointer}
.c-row{display:flex;align-items:center;gap:10px;padding:8px 16px;border-bottom:1px solid var(--line)}
.c-row label{width:56px;color:var(--dim);font-size:13px;flex:0 0 56px}
.c-row input{flex:1;border:none;outline:none;font:13.5px/1.5 inherit;color:#222;background:transparent;height:28px}
.c-row .cc-toggle{font-size:12.5px;color:var(--blue);cursor:pointer;white-space:nowrap}
.c-tools{display:flex;align-items:center;gap:4px;padding:7px 14px;border-bottom:1px solid var(--line);background:#fcfdfe;flex-wrap:wrap}
.c-tools button{min-width:28px;height:26px;padding:0 7px;border:1px solid transparent;background:transparent;border-radius:3px;cursor:pointer;color:#4b5563;font-size:13px;display:inline-flex;align-items:center;justify-content:center;white-space:nowrap}
.c-tools button:hover{background:var(--blue-soft);border-color:#d6e4fb;color:var(--blue)}
.c-tools .sep{width:1px;height:16px;background:var(--line);margin:0 6px}
.c-editor{min-height:320px;padding:16px;font:14px/1.8 inherit;outline:none;overflow-y:auto}
.c-editor:empty:before{content:attr(data-ph);color:#b0b6c2}
.c-attach{display:flex;align-items:center;gap:10px;padding:8px 16px;border-top:1px solid var(--line);background:#fcfdfe;flex-wrap:wrap}
.file-chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:3px;padding:2px 8px;background:#fafbfc;font-size:12.5px;color:var(--dim)}
.file-chip i{font-style:normal;color:var(--weak);font-size:11.5px}
.file-x{cursor:pointer;color:var(--weak);margin-left:2px;font-weight:400}
.file-x:hover{color:#d93026}
#moveSel{height:24px;width:72px;padding:0 4px;font-size:12px;border:1px solid var(--line-strong);border-radius:3px;background:#fff;color:var(--dim);cursor:pointer;flex:0 0 auto}
#moveSel:hover{border-color:var(--blue);color:var(--blue)}
.c-foot{display:flex;align-items:center;gap:10px;padding:12px 16px;border-top:1px solid var(--line);background:#fafbfc}
.btn-primary{height:34px;padding:0 22px;border:none;border-radius:4px;background:var(--blue);color:#fff;font-size:13.5px;font-weight:600;cursor:pointer}
.btn-primary:hover{background:var(--blue-dark)}
.btn-primary:disabled{opacity:.6;cursor:default}
.btn-ghost{height:34px;padding:0 16px;border:1px solid var(--line-strong);border-radius:4px;background:#fff;color:var(--dim);font-size:13px;cursor:pointer}
.hint{margin-left:auto;font-size:12px;color:var(--weak)}

/* ---------- 设置页 ---------- */
.settings-page{max-width:1000px;margin:18px auto 40px;padding:0 20px;display:grid;grid-template-columns:190px 1fr;gap:16px}
.set-menu{background:#fff;border:1px solid var(--line);border-radius:6px;padding:10px;height:fit-content}
.set-menu a{display:block;padding:9px 12px;border-radius:4px;color:#3a3f47;font-size:13.5px;cursor:pointer}
.set-menu a:hover{background:var(--hover);color:var(--blue)}
.set-menu a.on{background:var(--blue-soft);color:var(--blue);font-weight:600}
.set-panel{background:#fff;border:1px solid var(--line);border-radius:6px;padding:22px 24px;box-shadow:0 2px 8px rgba(0,0,0,.04)}
.set-panel h2{margin:0 0 18px;font-size:15px;color:#19304f}
.set-row{display:flex;align-items:flex-start;gap:14px;margin-bottom:18px}
.set-row>label{width:96px;flex:0 0 96px;color:var(--dim);font-size:13.5px;padding-top:8px}
.set-row input,.set-row textarea{flex:1;border:1px solid var(--line-strong);border-radius:4px;padding:8px 12px;font:13.5px/1.6 inherit;outline:none}
.set-row input:focus,.set-row textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(43,108,212,.08)}
.set-row textarea{min-height:120px;resize:vertical}
.set-tip{color:var(--weak);font-size:12px;margin-top:-8px;margin-bottom:16px;padding-left:110px}
.set-actions{padding-left:110px;display:flex;gap:10px;align-items:center}
.set-msg{color:#00a854;font-size:13px}
.set-msg.err{color:#d93026}

@media (max-width: 980px){
  .app{grid-template-columns:1fr}
  .side{display:none}
  .list{border-right:none}
  .reader{display:none}
  .app.reading .list{display:none}
  .app.reading .reader{display:flex}
  .settings-page{grid-template-columns:1fr}
  .set-menu{display:flex;gap:6px;overflow-x:auto}
}

/* ---------- 通用页面（通讯录 / 待发送）---------- */
.page-wrap{max-width:1000px;margin:18px auto 40px;padding:0 20px}
.panel{background:#fff;border:1px solid var(--line);border-radius:6px;padding:22px 24px;box-shadow:0 2px 8px rgba(0,0,0,.04)}
.panel h2{margin:0 0 16px;font-size:15px;color:#19304f}
.ct-form{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:12px}
.ct-form input{height:32px;border:1px solid var(--line-strong);border-radius:4px;padding:0 10px;font:13px/1.5 inherit;outline:none;min-width:160px}
.ct-form input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(43,108,212,.08)}
.ct-search{margin-bottom:10px}
.ct-search input{width:100%;height:32px;border:1px solid var(--line-strong);border-radius:15px;padding:0 14px;font:13px/1.5 inherit;outline:none;background:#fafbfc}
.ct-list{border:1px solid var(--line-soft,#f0f1f3);border-radius:4px;overflow:hidden}
.ct-row{display:grid;grid-template-columns:90px 150px 1fr auto;align-items:center;gap:10px;padding:9px 12px;border-bottom:1px solid #f4f5f7;font-size:13px}
.ct-row:last-child{border-bottom:none}
.ct-row:hover{background:var(--hover)}
.ct-group{color:var(--weak);font-size:12px}
.ct-name{color:#19304f;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ct-mail{color:var(--dim);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ct-ops{display:flex;gap:4px}
.btn-link{background:none;border:none;color:var(--blue);font-size:12.5px;cursor:pointer;padding:2px 4px}
.btn-link:hover{text-decoration:underline}
.rule-form{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:14px}
.rule-form select,.rule-form input{height:32px;border:1px solid var(--line-strong);border-radius:4px;padding:0 8px;font:13px/1.5 inherit;outline:none;background:#fff}
.rule-form input{min-width:160px}
.ob-status{font-size:12px;color:#00a854;font-weight:600}
.ob-status.bad{color:#d93026}
.ob-err{color:var(--weak);font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:260px}
.folders li.drop{background:#e8f1ff;outline:2px dashed var(--blue);outline-offset:-2px}
.att-prev{display:inline-flex;align-items:center;border:1px solid #cfe0fb;border-radius:3px;padding:2px 8px;background:#f2f7ff;font-size:12.5px;color:var(--blue);margin-right:6px}
.att-prev:hover{background:#e6f0ff;text-decoration:none}