:root{
  /* 科技蓝 VI —— 与 1010AI.cn 全站一致：主深蓝 #0A2D5C / 亮蓝 #1A6FD4 / 浅蓝高光 #3FA3E8 */
  --brand:#1a6fd4; --brand2:#0f3d78; --brand-soft:#3fa3e8;
  --brand-bright:#3fa3e8;
  --ink:#0a1a2e; --muted:#5d7798; --line:rgba(10,45,92,.12);
  --bg:#f5f8fc; --card:#ffffff; --ok:#2e9e6b; --warn:#e08a1e; --danger:#d9534f;
  --radius:14px; --shadow:0 6px 24px rgba(10,45,92,.10);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB",sans-serif;
  color:var(--ink); background:var(--bg); -webkit-font-smoothing:antialiased;
}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:14px}
.hidden{display:none !important}

/* ---------- 认证页 ---------- */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand2) 55%,var(--brand-soft) 100%);padding:24px}
.auth-card{width:100%;max-width:440px;background:#fff;border-radius:20px;padding:34px 30px;box-shadow:0 20px 60px rgba(10,45,92,.18)}
.auth-brand{text-align:center;margin-bottom:22px}
.auth-brand .logo{width:56px;height:56px;border-radius:16px;background:linear-gradient(135deg,var(--brand),var(--brand-bright));
  color:#fff;font-weight:800;font-size:24px;display:flex;align-items:center;justify-content:center;margin:0 auto 12px}
.auth-brand h1{font-size:22px;color:var(--brand);letter-spacing:.5px}
.auth-brand p{font-size:12.5px;color:var(--muted);margin-top:6px}
.auth-tabs{display:flex;background:var(--bg);border-radius:12px;padding:4px;margin-bottom:18px}
.tab{flex:1;border:none;background:transparent;padding:10px;font-size:14px;font-weight:600;color:var(--muted);border-radius:9px}
.tab.active{background:#fff;color:var(--brand);box-shadow:0 2px 8px rgba(10,45,92,.12)}
.auth-form label{display:block;font-size:13px;color:#444;margin-bottom:14px}
.auth-form input,.auth-form select{width:100%;margin-top:6px;padding:11px 12px;border:1.5px solid var(--line);border-radius:10px;background:#fff;outline:none;transition:.15s}
.auth-form input:focus,.auth-form select:focus{border-color:var(--brand-soft);box-shadow:0 0 0 3px rgba(26,111,212,.14)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}
.btn-primary{width:100%;padding:12px;border:none;border-radius:11px;background:linear-gradient(135deg,var(--brand),var(--brand-soft));
  color:#fff;font-size:15px;font-weight:700;letter-spacing:2px;margin-top:4px;transition:.15s}
.btn-primary:hover{filter:brightness(1.07)}
.auth-msg{font-size:12.5px;margin-top:10px;min-height:16px;color:var(--danger);text-align:center}

/* ---------- 主布局 ---------- */
.app{display:flex;min-height:100vh}
.sidebar{width:230px;background:linear-gradient(180deg,#0a2d5c,#0f3d78);color:#fff;display:flex;flex-direction:column;
  padding:20px 16px;position:sticky;top:0;height:100vh;overflow-y:auto;overflow-x:hidden}
.sidebar::-webkit-scrollbar{width:6px}
.sidebar::-webkit-scrollbar-thumb{background:rgba(255,255,255,.22);border-radius:3px}
.sidebar::-webkit-scrollbar-track{background:transparent}
.sidebar{scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.22) transparent}
.side-brand{display:flex;flex-direction:column;align-items:center;gap:10px;font-weight:800;font-size:16px;margin-bottom:24px;padding:6px 0 4px;text-align:center;cursor:pointer;user-select:none}
.side-logo{height:28px;width:auto;display:block;flex:0 0 auto;filter:brightness(0) invert(1)}
.side-brand:hover{opacity:.8}
.logo{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-bright));color:#fff;
  font-weight:800;display:flex;align-items:center;justify-content:center;font-size:15px}
.logo.sm{width:30px;height:30px;font-size:14px}
#nav{display:flex;flex-direction:column;gap:4px;flex:1 0 auto}
.nav-item{text-align:left;border:none;background:transparent;color:#cfe0f3;padding:12px 14px;border-radius:10px;
  font-size:14.5px;font-weight:600;transition:.15s}
.nav-item:hover{background:rgba(255,255,255,.10);color:#fff}
.nav-item.active{background:#fff;color:var(--brand)}
.side-user{margin:10px 0 0;padding:0;background:transparent;border-radius:0}
.side-user b{font-size:14.5px}
.btn-logout{border:1px solid rgba(255,255,255,.35);background:transparent;color:#fff;padding:9px;border-radius:10px;font-size:13px}
.btn-logout:hover{background:rgba(255,255,255,.14)}

/* 侧栏分组 / 用户卡 */
.nav-group{font-size:11px;color:#a9c4e3;letter-spacing:1px;padding:4px 14px;margin-top:6px}
.side-user{margin:10px 0 0;padding:0;background:transparent;border-radius:0}
.side-user .av{width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-bright));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;flex-shrink:0}
.side-user .info{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap}
.side-user .info b{font-size:14.5px;display:inline}
.side-user .info span,.side-user .info .meta{font-size:12px;color:#cfe0f3}

/* ============ 工作台（首页右侧主体） ============ */
.wb-hero{background:linear-gradient(120deg,var(--brand) 0%,var(--brand2) 60%,var(--brand-soft) 100%);border-radius:18px;padding:26px 28px;color:#fff;margin-bottom:22px;position:relative;overflow:hidden}
.wb-hero::after{content:"🤖";position:absolute;right:18px;bottom:-14px;font-size:120px;opacity:.12}
.wb-hero h1{font-size:24px;margin-bottom:6px}
.wb-hero p{font-size:13.5px;color:#cfe0f3;line-height:1.7}
.wb-hero .mission{margin-top:12px;display:inline-block;background:rgba(255,255,255,.16);padding:7px 14px;border-radius:20px;font-size:12.5px}

.wb-section-h{font-size:16px;font-weight:800;color:var(--brand);margin:24px 0 12px;display:flex;align-items:center;gap:8px}
.wb-section-h small{font-size:12px;font-weight:500;color:var(--muted)}

/* 学习路径模块 */
.wb-modules{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.wb-module{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;box-shadow:var(--shadow);cursor:pointer;transition:.15s;border-left:5px solid var(--brand-soft)}
.wb-module:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(10,45,92,.14)}
.wb-module .mt{display:flex;align-items:center;gap:8px;font-weight:800;color:var(--brand);font-size:14.5px;margin-bottom:6px}
.wb-module .mt .dot{width:12px;height:12px;border-radius:4px;flex-shrink:0}
.wb-module .md{font-size:12px;color:var(--muted);line-height:1.6;min-height:38px}
.wb-module .go{margin-top:10px;font-size:12.5px;font-weight:700;color:var(--brand-soft)}
.wb-module .cnt{float:right;font-size:11px;color:#aaa;font-weight:600}

/* 快捷操作 */
.wb-actions{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px}
.wb-action{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;cursor:pointer;transition:.15s;box-shadow:var(--shadow)}
.wb-action:hover{transform:translateY(-2px);border-color:var(--brand-soft)}
.wb-action .ic{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:22px;color:#fff;flex-shrink:0}
.wb-action b{font-size:14px;color:var(--ink)}
.wb-action span{font-size:11.5px;color:var(--muted)}


.content{flex:1;padding:30px 36px;max-width:1180px;width:100%}
.page-head{margin-bottom:20px}
.page-head h2{font-size:23px;color:var(--brand)}
.page-head p{color:var(--muted);font-size:13.5px;margin-top:5px}

/* 卡片网格 */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;
  border:1px solid var(--line);transition:.15s;cursor:pointer}
.card:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(10,45,92,.14)}
.card .thumb{height:150px;background:#eef4fb;display:flex;align-items:center;justify-content:center;font-size:46px;color:#fff;overflow:hidden}
.card .thumb img{width:100%;height:100%;object-fit:cover}
.card .body{padding:14px 15px;flex:1;display:flex;flex-direction:column}
.card .body h3{font-size:15.5px;line-height:1.4;margin-bottom:6px}
.card .body .meta{font-size:12px;color:var(--muted);margin-top:auto}
.tag{display:inline-block;font-size:11px;padding:2px 9px;border-radius:20px;background:#eaf2fc;color:var(--brand);margin:0 6px 6px 0;font-weight:600}

/* 资料库 */
.stage-section{margin-bottom:26px}
.stage-title{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--brand);margin-bottom:12px}
.stage-dot{width:14px;height:14px;border-radius:4px}
.res-card{background:var(--card);border-radius:12px;padding:14px 16px;border:1px solid var(--line);box-shadow:var(--shadow);cursor:pointer;transition:.15s}
.res-card:hover{transform:translateY(-2px)}
.res-card h3{font-size:15px;color:var(--ink);margin-bottom:5px}
.res-card .sub{font-size:12px;color:var(--muted);line-height:1.5}
.filter-bar{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.chip{border:1px solid var(--line);background:#fff;color:#5d7798;padding:7px 14px;border-radius:20px;font-size:13px;font-weight:600}
.chip.active{background:var(--brand);color:#fff;border-color:var(--brand)}

/* 按钮 / 工具条 */
.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;flex-wrap:wrap;gap:10px}
.btn-add{background:linear-gradient(135deg,var(--brand),var(--brand-soft));color:#fff;border:none;padding:10px 18px;border-radius:11px;font-weight:700;font-size:14px}
.btn-add:hover{filter:brightness(1.07)}
.btn-ghost{background:#fff;border:1.5px solid var(--line);color:var(--brand);padding:9px 16px;border-radius:11px;font-weight:600}
.btn-ghost:hover{background:var(--bg)}
.btn-sm{padding:6px 14px;font-size:13px}
.btn-gold{background:linear-gradient(135deg,var(--brand),var(--brand-soft));color:#fff;border:none;padding:10px 18px;border-radius:11px;font-weight:700;font-size:14px}
.btn-gold:hover{filter:brightness(1.07)}
.btn-blue{background:linear-gradient(135deg,#1f5f9e,#3f8fd0);color:#fff;border:none;padding:10px 18px;border-radius:11px;font-weight:700;font-size:14px}
.btn-blue:hover{filter:brightness(1.07)}
.btn-danger{background:#fff;border:1.5px solid #f0c9c7;color:var(--danger);padding:8px 14px;border-radius:10px;font-weight:600;font-size:13px}
.btn-danger:hover{background:#fdf0ef}

/* 我的作品空态 */
.empty{text-align:center;padding:60px 20px;color:var(--muted)}
.empty .big{font-size:54px;margin-bottom:12px}

/* 表单弹窗 */
.modal{position:fixed;inset:0;z-index:50;display:flex;align-items:center;justify-content:center}
.modal-mask{position:absolute;inset:0;background:rgba(10,45,92,.45)}
.modal-box{position:relative;z-index:1;background:#fff;width:100%;max-width:560px;max-height:88vh;overflow:auto;border-radius:18px;padding:26px 28px;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.modal-box h3{color:var(--brand);font-size:19px;margin-bottom:16px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:#444;margin-bottom:6px;font-weight:600}
.field input,.field select,.field textarea{width:100%;padding:10px 12px;border:1.5px solid var(--line);border-radius:10px;outline:none}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand-soft);box-shadow:0 0 0 3px rgba(26,111,212,.14)}
.field textarea{resize:vertical;min-height:70px}
.type-pick{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:8px}
.type-opt{border:1.5px solid var(--line);border-radius:10px;padding:12px 6px;text-align:center;font-size:13px;font-weight:600;color:#555;transition:.15s}
.type-opt .ic{font-size:24px;display:block;margin-bottom:4px}
.type-opt.active{border-color:var(--brand);background:rgba(26,111,212,.08);color:var(--brand)}
.img-prev{margin-top:8px;max-height:160px;border-radius:10px;border:1px solid var(--line)}

/* 详情 */
.detail-hero{width:100%;height:260px;border-radius:14px;overflow:hidden;background:#eef4fb;margin-bottom:16px;display:flex;align-items:center;justify-content:center;font-size:60px;color:#fff}
.detail-hero img{width:100%;height:100%;object-fit:cover}
.detail-meta{font-size:13px;color:var(--muted);margin-bottom:14px;display:flex;gap:14px;flex-wrap:wrap}
.detail-desc{line-height:1.8;color:#333;white-space:pre-wrap}
.detail-link{display:inline-block;margin-top:14px;background:var(--brand);color:#fff;padding:10px 18px;border-radius:10px;text-decoration:none;font-weight:600}
.frame-wrap{margin-top:14px;border-radius:12px;overflow:hidden;border:1px solid var(--line)}
.frame-wrap iframe{width:100%;height:420px;border:none}

/* 个人中心 */
.profile-head{display:flex;align-items:center;gap:18px;background:#fff;border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);margin-bottom:20px}
.avatar{width:72px;height:72px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-soft));color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:30px;font-weight:800;flex-shrink:0}
.profile-head h2{font-size:21px;color:var(--brand)}
.profile-head .line{color:var(--muted);font-size:13.5px;margin-top:5px}
.stat-row{display:flex;gap:14px;margin-bottom:22px;flex-wrap:wrap}
.stat{background:#fff;border-radius:14px;padding:16px 22px;box-shadow:var(--shadow);flex:1;min-width:140px}
.stat .n{font-size:26px;font-weight:800;color:var(--brand)}
.stat .l{font-size:12.5px;color:var(--muted);margin-top:3px}

/* toast */
.toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);background:#0a1a2e;color:#fff;padding:12px 22px;border-radius:30px;font-size:14px;z-index:99;box-shadow:0 8px 24px rgba(0,0,0,.3)}

.section-h{font-size:16px;font-weight:800;color:var(--brand);margin:22px 0 12px}

/* ============ 学习工作台 ============ */
.modal-box:has(.mod-detail){max-width:780px}

/* 今日安排 + 缺漏提醒 双栏 */
.wb-2col{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.today-box,.gaps-box{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px;box-shadow:var(--shadow)}
.today-item{display:flex;align-items:center;gap:10px;padding:9px 4px;border-bottom:1px dashed var(--line)}
.today-item:last-child{border-bottom:none}
.today-item .tic{font-size:20px}
.today-item .ti-main{flex:1;min-width:0}
.today-item .ti-main b{font-size:13.5px;display:block}
.today-item .ti-main span{font-size:11.5px;color:var(--muted)}
.today-item .tst{font-size:11.5px;color:var(--warn);white-space:nowrap}
.today-item.done .tst{color:var(--ok)}
.today-empty{font-size:13px;color:var(--muted);padding:6px 2px}
.gaps-box{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.gap-chip{background:#fdf0ef;border:1px solid #f3c2bf;color:#c0392b;font-size:12.5px;font-weight:600;padding:6px 12px;border-radius:20px}
.gap-chip em{font-style:normal;color:#a94442;margin-left:4px;font-size:11px}
.gaps-actions{margin-top:10px;display:flex;gap:8px;width:100%}

/* 应用中心 */
.mod-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
.mod-ic{width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,var(--brand),var(--brand-soft));color:#fff;display:flex;align-items:center;justify-content:center;font-size:26px;margin:14px 15px 0;flex-shrink:0}
.mod-ic.big{width:58px;height:58px;font-size:30px;margin:0}
.mod-head{display:flex;align-items:center;justify-content:space-between;gap:8px}
.mod-head h3{font-size:15.5px;margin-bottom:0}
.tag-ok{background:#e6f5ee;color:var(--ok)}
.mod-lesson{font-size:11.5px;color:#aaa;margin:4px 0 6px}
.mod-ability{font-size:12px;font-weight:700;color:#1B8A6B;margin:0 0 6px}
.mod-meta-row{display:flex;flex-wrap:wrap;gap:6px;margin:6px 0 4px}
.mod-foot{display:flex;justify-content:space-between;align-items:center;margin-top:10px;font-size:12px;color:var(--muted)}
.mod-foot .go-link{color:var(--brand-soft);font-weight:700}

/* 模块详情弹窗 */
.mod-detail-head{display:flex;gap:14px;align-items:flex-start;margin-bottom:14px}
.mod-detail-head h3{margin-bottom:2px}
.mod-tabs{display:flex;gap:8px;margin-bottom:14px;border-bottom:2px solid var(--line);padding-bottom:10px}
.mtab{border:none;background:transparent;padding:8px 14px;border-radius:10px;font-size:13.5px;font-weight:700;color:var(--muted)}
.mtab.active{background:var(--brand);color:#fff}
.mp-sec{margin-bottom:16px}
.mp-sec h4{font-size:13.5px;color:var(--brand);margin-bottom:8px}
.pre-box{background:#f3f7fc;border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-size:12.5px;line-height:1.8;white-space:pre-wrap;color:#333}
.rule-box{background:#fff8ec;border:1px solid #f4e3c2;border-radius:10px;padding:10px 14px;font-size:12.5px;color:#7a5b1e;line-height:1.7}
.field-list{list-style:none;display:flex;flex-direction:column;gap:6px}
.field-list li{background:#f3f7fc;border-radius:8px;padding:8px 12px;font-size:12.5px;color:#444}
.mp-tip{background:#eef5ff;border-radius:10px;padding:10px 14px;font-size:12.5px;color:#2d5fa0}
.mp-note{font-size:11.5px;color:#999;margin-top:6px;line-height:1.6}
.copy-btn{float:right;font-size:11px;font-weight:600;color:var(--brand);background:#fff;border:1px solid var(--brand);
  border-radius:8px;padding:3px 10px;cursor:pointer;line-height:1.4;transition:.15s}
.copy-btn:hover{background:var(--brand);color:#fff}
.build-steps{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:8px}
.build-steps li{font-size:12.5px;line-height:1.7;color:#444}
.build-steps li::marker{color:var(--brand);font-weight:700}
.check-progress{font-size:12.5px;color:#2e9e6b;font-weight:700;margin-bottom:8px}
.check-progress b{font-size:15px}
.check-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.check-item label{display:flex;align-items:flex-start;gap:9px;font-size:12.5px;line-height:1.6;color:#444;cursor:pointer;padding:8px 10px;background:#f5f8fc;border:1px solid var(--line);border-radius:9px;transition:.15s}
.check-item label:hover{background:#eaf2fc;border-color:#bcd4ef}
.check-item input{margin-top:2px;width:16px;height:16px;accent-color:var(--brand);flex-shrink:0;cursor:pointer}
.check-item input:checked + span{color:#2e9e6b;text-decoration:line-through;text-decoration-color:#bcdcc8}
.use-row{display:flex;gap:10px;align-items:baseline;padding:7px 0;border-bottom:1px dashed var(--line);font-size:12.5px;color:#444}
.use-row:last-child{border-bottom:none}
.use-date{color:var(--muted);font-size:11px;white-space:nowrap;flex-shrink:0}
.check-row{display:flex;align-items:center;gap:8px;font-size:13px;color:#444;cursor:pointer}
.check-row input{width:16px;height:16px;accent-color:var(--brand)}

/* 学习计划 */
.plan-table{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.plan-day{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px 14px;box-shadow:var(--shadow)}
.plan-day-h{font-size:14px;font-weight:800;color:var(--brand);margin-bottom:8px;display:flex;justify-content:space-between}
.plan-day-h .cnt{font-size:11.5px;color:var(--ok)}
.plan-item{display:flex;align-items:center;gap:8px;padding:8px 0;border-top:1px dashed var(--line)}
.plan-item.done .pi-main b{color:#999;text-decoration:line-through}
.plan-item .pi-main{flex:1;min-width:0}
.plan-item .pi-main b{font-size:13px;display:block}
.plan-item .pi-main span{font-size:11px;color:var(--muted)}
.plan-item input{width:16px;height:16px;accent-color:var(--ok)}
.plan-empty{font-size:12px;color:#ccc;padding:6px 0}
.btn-danger.sm{padding:4px 10px;font-size:12px}
.btn-ghost.sm{padding:5px 12px;font-size:12px}

/* 学习进度 */
.prog-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;box-shadow:var(--shadow);margin-bottom:8px}
.prog-bar{height:16px;background:#eee;border-radius:20px;overflow:hidden}
.prog-fill{height:100%;background:linear-gradient(90deg,var(--brand),var(--brand-bright));border-radius:20px;transition:.4s}
.prog-meta{font-size:12.5px;color:var(--muted);margin-top:8px}

/* 学习缺漏 */
.gap-list{display:flex;flex-direction:column;gap:10px}
.gap-item{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px;box-shadow:var(--shadow)}
.gap-rank{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-soft));color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.gap-main{flex:1;min-width:0}
.gap-main b{font-size:15px;display:block}
.gap-main .meta{font-size:11.5px;color:var(--muted)}
.gap-count{font-size:12.5px;color:var(--danger);font-weight:700;white-space:nowrap}
.gaps-tip{margin-top:14px;background:#f3f7fc;border-radius:12px;padding:12px 16px;font-size:12.5px;color:#555}
.as-list{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:14px;padding:6px 16px;box-shadow:var(--shadow)}

/* ---------- 搭建手册页 ---------- */
.page-head .ph-actions{margin-top:10px}
.manual-intro{background:linear-gradient(135deg,#eaf2fc,#eef4fb);border:1px solid #d4e4f5;border-radius:16px;padding:20px 22px;margin-bottom:22px;box-shadow:var(--shadow)}
.manual-intro-text{font-size:14px;line-height:1.9;color:#333;margin-bottom:16px}
.manual-h{font-size:14px;font-weight:800;color:var(--brand);margin:14px 0 10px}
.manual-howto{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.manual-howto li{display:flex;gap:12px;align-items:flex-start;font-size:13.5px;line-height:1.7;color:#333}
.manual-howto .hn{flex-shrink:0;width:26px;height:26px;border-radius:50%;background:var(--brand);color:#fff;font-weight:800;font-size:13px;display:flex;align-items:center;justify-content:center}
.manual-legend{display:flex;flex-wrap:wrap;gap:10px}
.manual-legend .lg{background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 14px;font-size:12.5px;color:#444}
.manual-legend .lg b{margin-right:4px}
.manual-closing{margin-top:16px;background:linear-gradient(135deg,var(--brand),var(--brand-soft));color:#fff;border-radius:12px;padding:13px 16px;font-size:13px;line-height:1.7;font-weight:600}
/* ===== 搭建手册方法论区块（mk-*） ===== */
.mk-section{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin-bottom:16px;box-shadow:var(--shadow)}
.mk-h{font-size:15.5px;font-weight:800;color:var(--brand);margin-bottom:12px;padding-bottom:8px;border-bottom:2px solid #eef3fa}
.mk-p{font-size:13.5px;line-height:1.85;color:#333;margin:0 0 10px}
.mk-ba{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:6px}
.mk-before,.mk-after{border-radius:10px;padding:12px 14px;font-size:13px;line-height:1.7}
.mk-before{background:#fff4f4;border:1px solid #f3d4d4}
.mk-before b{color:#c0392b}
.mk-after{background:#f1faf2;border:1px solid #cdeed2}
.mk-after b{color:#1e8e3e}
.mk-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px}
.mk-card{background:linear-gradient(135deg,#f7faff,#eef4fb);border:1px solid #e2ecf7;border-radius:12px;padding:14px}
.mk-card-name{font-weight:800;color:#1d4e8f;font-size:13.5px;margin-bottom:6px}
.mk-card-desc{font-size:12.5px;line-height:1.7;color:#445}
.mk-steps{display:flex;flex-direction:column;gap:10px}
.mk-step{display:flex;gap:12px;align-items:flex-start}
.mk-step-no{flex-shrink:0;width:28px;height:28px;border-radius:8px;background:var(--brand);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:13px}
.mk-step-body b{font-size:13.5px;color:#222}
.mk-step-body p{margin:4px 0 0;font-size:12.5px;line-height:1.7;color:#556}
.pre-box{background:#0f1b2d;color:#e6edf3;border-radius:10px;padding:14px 16px;font-size:12.5px;line-height:1.85;white-space:pre-wrap;word-break:break-word;overflow-x:auto;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.mk-tmpl{margin:0}
.mk-pitfalls{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}
.mk-pitfall{background:#fff;border:1px solid var(--line);border-radius:12px;padding:13px 14px}
.mk-pitfall-title{font-weight:800;font-size:13.5px;color:#222;margin-bottom:8px}
.mk-pitfall-bad{font-size:12.5px;color:#b03a2e;background:#fdecea;border-radius:8px;padding:6px 9px;margin-bottom:6px}
.mk-pitfall-good{font-size:12.5px;color:#1e8e3e;background:#eafaf0;border-radius:8px;padding:6px 9px;margin-bottom:6px}
.mk-pitfall-note{font-size:12px;color:#667}
.mk-models{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.mk-model{background:linear-gradient(135deg,#f3f8ff,#eaf1fb);border:1px solid #e0e9f5;border-radius:12px;padding:13px 14px}
.mk-model-name{font-weight:800;color:#1d4e8f;font-size:13.5px;margin-bottom:5px}
.mk-model-desc{font-size:12.5px;line-height:1.7;color:#445}
.mk-params{margin-top:10px;font-size:12.5px;color:#556;background:#f6f8fb;border:1px dashed #d6e0ec;border-radius:8px;padding:9px 12px}
.mk-meta{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px}
.mk-meta-card{background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:12px;padding:13px 15px;transition:.15s}
.mk-meta-card:hover{box-shadow:0 6px 18px rgba(31,78,143,.12);transform:translateY(-2px)}
.mk-meta-top{display:flex;align-items:center;gap:8px;margin-bottom:7px}
.mk-meta-ic{font-size:20px}
.mk-meta-name{font-weight:800;font-size:14px;color:var(--brand)}
.mk-meta-desc{font-size:12.8px;line-height:1.75;color:#445}
.mk-meta-prompt{margin:10px 0 0;background:#f6f8fb;border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-size:12px;line-height:1.7;color:#2a3340;white-space:pre-wrap;word-break:break-word;max-height:210px;overflow:auto;font-family:inherit}
.mk-meta-foot{margin-top:9px;text-align:right}
.mk-meta-foot .copy-btn{float:none;padding:5px 12px;border-radius:8px;cursor:pointer}
@media(max-width:640px){.mk-ba{grid-template-columns:1fr}}
.manual-cat{margin-bottom:22px}
.manual-cat h3{font-size:15px;color:var(--brand);margin:0 0 12px;padding-left:10px;border-left:4px solid var(--brand-soft)}
.skill-block{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:10px;box-shadow:var(--shadow);overflow:hidden}
.skill-block>summary{display:flex;align-items:center;gap:10px;padding:14px 16px;cursor:pointer;list-style:none;user-select:none}
.skill-block>summary::-webkit-details-marker{display:none}
.skill-block>summary::before{content:"▸";color:var(--brand-soft);font-size:13px;transition:.15s;margin-right:-2px}
.skill-block[open]>summary::before{content:"▾"}
.skill-block>summary:hover{background:#f3f7fc}
.sb-ic{font-size:20px;flex-shrink:0}
.sb-name{font-size:15px;font-weight:800;color:var(--ink);flex-shrink:0}
.sb-goal{font-size:12px;color:var(--muted);margin-left:auto;max-width:55%;text-align:right;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.skill-block .tag{background:#eaf2fc;color:var(--brand);border-color:transparent}
.sb-body{padding:4px 18px 18px;border-top:1px dashed var(--line)}

@media(max-width:760px){
  .sidebar{position:fixed;bottom:0;top:auto;width:100%;height:auto;flex-direction:row;padding:8px;z-index:40}
  .side-brand,.side-user,.btn-logout,.nav-group,.side-official-btn{display:none}
  #nav{flex-direction:row;overflow-x:auto;gap:2px}
  .nav-item{flex:1;font-size:12px;padding:10px 4px;text-align:center;white-space:nowrap}
  .content{padding:18px 16px 90px}
  .grid2{grid-template-columns:1fr}
  .wb-2col{grid-template-columns:1fr}
  .wb-actions{grid-template-columns:1fr 1fr}
}

/* ============ 学习计划 · 月历视图 ============ */
.cal-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px 18px 14px;box-shadow:var(--shadow);margin-top:4px}
.cal-head{display:flex;align-items:center;gap:8px;margin-bottom:14px}
.cal-title{font-size:17px;font-weight:800;color:var(--brand);min-width:120px;text-align:center}
.cal-nav{width:34px;height:34px;border:1px solid var(--line);background:#fff;color:var(--brand);border-radius:10px;font-size:18px;font-weight:700;line-height:1}
.cal-nav:hover{background:var(--bg)}
.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:8px}
.cal-weekdays{margin-bottom:8px}
.cal-wd{text-align:center;font-size:12.5px;font-weight:700;color:var(--muted);padding:4px 0}
.cal-cell{position:relative;min-height:104px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px 8px 26px;display:flex;flex-direction:column;gap:4px;transition:.15s}
.cal-cell:hover{border-color:var(--brand-soft);box-shadow:0 6px 18px rgba(10,45,92,.10)}
.cal-empty{background:transparent;border:none;box-shadow:none;pointer-events:none}
.cal-has{background:#f7fbff;border-color:rgba(26,111,212,.35)}
.cal-today{border:2px solid var(--brand-soft);background:#eef5ff}
.cal-d{display:flex;align-items:center;gap:6px}
.cal-num{font-size:14px;font-weight:700;color:var(--ink)}
.cal-today .cal-num{color:var(--brand)}
.cal-td{font-size:10.5px;font-weight:700;color:#fff;background:var(--brand-soft);padding:1px 7px;border-radius:10px}
.cal-items{display:flex;flex-direction:column;gap:3px;overflow:hidden}
.cal-plan{display:flex;align-items:center;gap:5px;background:#eaf2fc;border-radius:7px;padding:3px 6px;cursor:pointer;transition:.12s}
.cal-plan:hover{background:#dcebff}
.cal-plan.done{background:#eef6f1;opacity:.7}
.cal-plan.done .cal-pt{text-decoration:line-through;color:var(--muted)}
.cal-dot{width:7px;height:7px;border-radius:50%;flex-shrink:0}
.cal-pt{font-size:11px;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cal-more{font-size:10.5px;color:var(--muted);padding-left:4px}
.cal-add{position:absolute;right:6px;bottom:5px;width:22px;height:22px;border:none;border-radius:7px;background:rgba(26,111,212,.10);color:var(--brand-soft);font-size:15px;font-weight:700;line-height:1;opacity:0;transition:.12s}
.cal-cell:hover .cal-add{opacity:1}
.cal-add:hover{background:var(--brand-soft);color:#fff}
.pi-val{font-size:13.5px;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:9px;padding:9px 11px}
@media(max-width:760px){
  .cal-grid{gap:4px}
  .cal-cell{min-height:74px;padding:5px 5px 20px;border-radius:9px}
  .cal-num{font-size:12px}
  .cal-pt{font-size:9.5px}
  .cal-wd{font-size:10.5px}
  .cal-add{width:18px;height:18px;font-size:12px}
}

/* ============ 试用 / VIP 横幅 ============ */
.vip-banner{border-radius:12px;padding:11px 15px;margin-bottom:14px;font-size:14px;font-weight:600;display:flex;align-items:center;gap:8px}
.vip-banner.trial{background:#eaf2fc;color:#0f3d78;border:1px solid rgba(26,111,212,.3)}
.vip-banner.expire{background:#fff3e6;color:#a85b00;border:1px solid rgba(224,138,30,.4)}
.vip-banner.vip{background:#eef6f1;color:#1d7a45;border:1px solid rgba(29,122,69,.3)}
.vip-banner b{color:inherit}

/* ============ 侧栏后台 / VIP 按钮 ============ */
.side-admin-btn,.side-vip-btn{width:100%;margin-top:8px;padding:9px;border:none;border-radius:10px;font-size:13.5px;font-weight:700;cursor:pointer;transition:.15s}
.side-admin-btn{background:var(--brand);color:#fff;margin-bottom:12px}
.side-admin-btn:hover{background:var(--brand2)}
.side-vip-btn{background:linear-gradient(135deg,#1A6FD4,#3FA3E8);color:#fff}
.side-vip-btn:hover{filter:brightness(1.05)}
.side-vip-btn.ghost{background:rgba(26,111,212,.10);color:var(--brand-soft)}

/* ============ 管理后台 ============ */
.admin-toolbar{display:flex;align-items:center;justify-content:space-between;margin:6px 0 14px}
.admin-stat{color:var(--muted);font-size:13.5px}
.admin-table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--card)}
.admin-table{width:100%;border-collapse:collapse;font-size:13.5px;min-width:880px}
.admin-table th,.admin-table td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
.admin-table th{background:#f3f7fc;color:var(--brand);font-weight:700;position:sticky;top:0}
.admin-table tr:last-child td{border-bottom:none}
.admin-ops{display:flex;gap:6px}
.mini{border:1px solid var(--line);background:#fff;border-radius:8px;padding:5px 9px;font-size:12px;cursor:pointer;transition:.12s}
.mini-ok{color:#1d7a45;border-color:rgba(29,122,69,.3)}
.mini-ok:hover{background:#eef6f1}
.mini-warn{color:#a85b00;border-color:rgba(224,138,30,.3)}
.mini-warn:hover{background:#fff3e6}
.mini-del{color:#c0392b;border-color:rgba(192,57,43,.3)}
.mini-del:hover{background:#fdecea}
.tag-admin{background:var(--brand);color:#fff;padding:1px 7px;border-radius:8px;font-size:11px}
.tag-vip.on{background:#1d7a45;color:#fff;padding:1px 7px;border-radius:8px;font-size:11px}
.tag-vip{background:#eee;color:#888;padding:1px 7px;border-radius:8px;font-size:11px}
.tag-on{color:#1d7a45}
.tag-off{color:#c0392b}
.tag-me{background:rgba(26,111,212,.15);color:var(--brand-soft);font-size:10px;padding:0 5px;border-radius:6px}

/* ============ VIP 申请卡 ============ */
.vip-apply-card{background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin:10px 0}
.vip-apply-row{display:flex;justify-content:space-between;padding:4px 0;font-size:14px}
.vip-apply-row span{color:var(--muted)}

/* ============ 首页返回官网入口（低调链接） ============ */.home-official-link{display:block;text-align:center;margin-top:14px;font-size:12.5px;color:var(--brand-soft);text-decoration:none;opacity:.8;transition:.15s}
.home-official-link:hover{opacity:1;text-decoration:underline}
.side-official-btn{display:block;margin-top:auto;padding:10px 0 4px;color:rgba(255,255,255,.7);font-size:13px;font-weight:500;text-align:center;text-decoration:none;cursor:pointer;transition:color .15s}
.side-official-btn:hover{color:#fff}

/* ============ AI 智能体搭建器（wb-* 布局） ============ */
.wb-wrap{margin-top:4px}
.wb-layout{display:grid;grid-template-columns:320px 1fr;gap:24px;align-items:start}
.wb-library{display:flex;flex-direction:column;gap:12px;max-height:calc(100vh - 220px);overflow:auto;padding-right:6px}
.wb-agent{text-align:left;width:100%;cursor:pointer;border:1px solid var(--line);border-radius:12px;background:var(--card);padding:14px 16px;box-shadow:var(--shadow);transition:.18s;position:relative}
.wb-agent:hover{border-color:var(--brand-soft);transform:translateX(3px)}
.wb-agent.active{border-color:var(--brand);background:#eef5ff;box-shadow:0 0 0 3px rgba(26,111,212,.12)}
.wb-agent .wa-top{display:flex;align-items:center;gap:10px}
.wb-agent .wa-ico{width:36px;height:36px;border-radius:10px;flex:none;display:grid;place-items:center;background:rgba(26,111,212,.10);border:1px solid rgba(26,111,212,.18);color:var(--brand);font-size:18px}
.wb-agent .wa-name{font-size:15px;font-weight:800;color:var(--brand2)}
.wb-agent .wa-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:9px}
.wb-agent .wa-tags span{font-size:11px;padding:3px 8px;border-radius:999px;background:rgba(26,111,212,.10);border:1px solid rgba(26,111,212,.18);color:var(--brand)}
.wb-agent .wa-desc{margin-top:7px;color:var(--muted);font-size:12.5px;line-height:1.5}
.wb-agent .wa-foot{margin-top:11px;display:flex}
.wb-agent .wa-copy{display:inline-flex;align-items:center;gap:5px;font-size:12.5px;font-weight:700;color:#fff;background:var(--brand);border:1px solid var(--brand);border-radius:8px;padding:6px 12px;cursor:pointer;user-select:none;transition:.15s}
.wb-agent .wa-copy:hover{background:var(--brand2);border-color:var(--brand2)}
.wb-agent .wa-copy:active{transform:scale(.96)}
.wb-builder{border:1px solid var(--line);border-radius:var(--radius);background:var(--card);padding:26px;box-shadow:var(--shadow)}
.wb-builder-head{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.wb-builder-head h3{font-size:19px;font-weight:800;color:var(--brand2)}
.wb-builder-actions{display:flex;gap:10px}
.wb-ai-head{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:12px;font-size:15px;font-weight:700;color:var(--brand2)}
.wb-builder .field textarea{min-height:84px;line-height:1.6;font-size:14px;background:#f6f9fd}
.wb-builder .field label{color:var(--muted)}
.wb-builder .field input,.wb-builder .field textarea{background:#f6f9fd;color:var(--ink)}
.wb-output-wrap{margin-top:22px;border:1px solid rgba(26,111,212,.22);border-radius:12px;background:#f6f9fd;overflow:hidden}
.wb-output-head{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;padding:13px 16px;background:rgba(26,111,212,.10);border-bottom:1px solid rgba(26,111,212,.22);font-size:13.5px;font-weight:700;color:var(--brand)}
.wb-output-head>div{display:flex;gap:8px}
.wb-output{margin:0;padding:18px;white-space:pre-wrap;word-break:break-word;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;line-height:1.7;color:#2c3e57;max-height:480px;overflow:auto}
.wb-ai-result-head{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-top:14px;padding:11px 16px;background:rgba(26,111,212,.10);border:1px solid rgba(26,111,212,.22);border-bottom:none;border-radius:12px 12px 0 0;font-size:13.5px;font-weight:700;color:var(--brand)}
.wb-ai-result{margin:0;padding:18px;white-space:pre-wrap;word-break:break-word;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;line-height:1.7;color:#2c3e57;background:#f6f9fd;border:1px solid rgba(26,111,212,.22);border-top:none;border-radius:0 0 12px 12px;max-height:480px;overflow:auto}
.wb-note{margin-top:16px;padding:14px 16px;border-radius:12px;background:rgba(26,111,212,.10);border:1px solid rgba(26,111,212,.22);color:var(--muted);font-size:13.5px;line-height:1.65}
.wb-note b{color:var(--brand)}
.wb-ai-wrap{margin-top:20px;padding:18px;border-radius:14px;background:linear-gradient(135deg,rgba(26,111,212,.06),rgba(63,163,232,.10));border:1px solid rgba(26,111,212,.18)}
@media(max-width:960px){.wb-layout{grid-template-columns:1fr}.wb-library{max-height:none;flex-direction:row;overflow-x:auto;padding-bottom:6px}.wb-agent{min-width:260px}}
@media(max-width:560px){.wb-builder{padding:18px}}

/* ============ 备课资料生成器（封装 k12 教研教学 AI 助手） ============ */
.tg-wrap{display:grid;grid-template-columns:420px 1fr;gap:24px;align-items:start}
.tg-form{padding:20px 22px}
.tg-row{display:grid;grid-template-columns:1fr 1fr;gap:14px 18px}
.tg-row .field{margin-bottom:14px}
.tg-types{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px}
.tg-type{display:inline-flex;align-items:center;gap:6px;padding:8px 13px;border:1.5px solid var(--line);border-radius:11px;cursor:pointer;font-size:13.5px;font-weight:600;color:#444;background:#fff;transition:.15s;user-select:none}
.tg-type:hover{border-color:var(--brand-soft)}
.tg-type input{width:15px;height:15px;accent-color:var(--brand);margin:0}
.tg-type:has(input:checked){border-color:var(--brand);background:#eef5ff;color:var(--brand)}
.tg-modelbar{display:flex;align-items:center;gap:10px;margin-top:6px;flex-wrap:wrap}
.tg-modelbar label{font-size:13px;font-weight:600;color:#444;margin:0}
.tg-modelbar select,.tg-modelbar input{flex:1;min-width:140px;padding:9px 11px;border:1.5px solid var(--line);border-radius:10px;outline:none;font-size:13.5px}
.tg-modelbar select:focus,.tg-modelbar input:focus{border-color:var(--brand-soft);box-shadow:0 0 0 3px rgba(26,111,212,.14)}
.tg-actions{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
.tg-actions .btn-add{flex:1;min-width:160px}
.tg-result .auth-msg{margin-top:10px}
.tg-empty{display:flex;align-items:center;justify-content:center;text-align:center;min-height:300px;padding:40px;color:var(--muted);font-size:14px;line-height:1.8;background:var(--bg);border:1px dashed var(--line);border-radius:14px}
.tg-result-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:14px;padding-bottom:12px;border-bottom:2px solid var(--line)}
.tg-result-head b{font-size:17px;color:var(--brand)}
.tg-modeltag{font-size:11px;background:#eef5ff;color:var(--brand-soft);padding:2px 9px;border-radius:20px;font-weight:600}
.tg-result-acts{display:flex;gap:8px;flex-wrap:wrap}
.tg-part{margin-bottom:16px;border:1px solid var(--line);border-radius:13px;overflow:hidden;background:#fff;box-shadow:var(--shadow)}
.tg-part-head{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:11px 16px;background:rgba(26,111,212,.08);border-bottom:1px solid var(--line)}
.tg-part-title{font-weight:700;color:var(--brand);font-size:14px}
.tg-part-acts{display:flex;gap:8px}
.tg-part-body{margin:0;padding:18px;white-space:pre-wrap;word-break:break-word;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;line-height:1.75;color:#2c3e57;max-height:520px;overflow:auto;background:#fbfdff}
@media(max-width:960px){.tg-wrap{grid-template-columns:1fr}.tg-row{grid-template-columns:1fr}}

/* ===== 校本教材编写插件 ===== */
.ph-sub{margin:4px 0 2px;color:var(--muted,#6b7a90);font-size:13px;line-height:1.6}
.tbk-steps{display:flex;gap:10px;margin:2px 0 18px;flex-wrap:wrap}
.tbk-step{flex:1;min-width:150px;display:flex;flex-direction:column;gap:2px;padding:13px 14px 12px;border-radius:12px;background:#f4f8fd;border:1px solid #e4edf9;position:relative;color:#5a6b82}
.tbk-step b{font-size:13.5px;color:#22324a}
.tbk-step i{font-style:normal;font-size:11.5px;color:#8a99ad}
.tbk-step-n{position:absolute;top:-10px;left:14px;width:22px;height:22px;border-radius:50%;background:var(--brand,#1a6fd4);color:#fff;font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center;border:2px solid #fff;box-shadow:0 1px 4px rgba(0,0,0,.12)}
.tbk-step.is-active{background:#eaf2ff;border-color:#bcd6f7}
.tbk-step.is-active b{color:var(--brand,#1a6fd4)}

.tbk-wrap{display:flex;flex-direction:column;gap:22px}
@media(max-width:960px){.tbk-wrap{grid-template-columns:1fr}}
.tbk-form{position:static;padding:24px 26px;border-top:3px solid var(--brand,#1a6fd4);box-shadow:0 8px 26px rgba(26,111,212,.10)}
.tbk-form-head{margin-bottom:16px}
.tbk-form-title{font-size:15px;font-weight:800;color:#13243b}
.tbk-form-sub{font-size:12px;color:var(--muted,#6b7a90);margin:5px 0 0;line-height:1.5}
.tbk-group{padding:18px 0;border-top:1px solid #eef2f7}
.tbk-basic{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
@media(max-width:760px){.tbk-basic{grid-template-columns:1fr}}
.tbk-group:first-of-type{padding-top:0}
.tbk-group-h{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:800;color:#13243b;margin-bottom:12px}
.tbk-group-h span{width:20px;height:20px;border-radius:50%;background:var(--brand,#1a6fd4);color:#fff;font-size:11px;display:flex;align-items:center;justify-content:center;flex:0 0 20px}
.tbk-types{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
@media(max-width:960px){.tbk-types{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.tbk-types{grid-template-columns:1fr}}
.tbk-type{display:flex;align-items:center;gap:9px;padding:11px 12px;border:1.5px solid #e1e9f4;border-radius:12px;background:#fff;cursor:pointer;transition:.15s;text-align:left;font-family:inherit}
.tbk-type-ic{font-size:20px;line-height:1}
.tbk-type-tx{display:flex;flex-direction:column;gap:1px}
.tbk-type-tx b{font-size:13px;color:#22324a;font-weight:700;line-height:1.3}
.tbk-type-tx i{font-style:normal;font-size:11px;color:#8a99ad}
.tbk-type:hover{border-color:#bcd6f7;background:#f7fbff}
.tbk-type.is-on{border-color:var(--brand,#1a6fd4);background:#eaf2ff;box-shadow:0 2px 8px rgba(26,111,212,.12)}
.tbk-type.is-on .tbk-type-tx b{color:var(--brand,#1a6fd4)}
.tbk-gen-btn{width:100%;margin-top:22px;justify-content:center;padding:13px;font-size:14.5px}

.tbk-outline,.tbk-guide{padding:22px 24px}
.tbk-stage{display:inline-flex;align-items:center;gap:9px;margin-bottom:12px;padding:7px 14px 7px 8px;border-radius:999px;background:#eaf2ff;color:var(--brand,#1a6fd4);font-weight:800;font-size:13.5px}
.tbk-stage-n{width:22px;height:22px;border-radius:50%;background:var(--brand,#1a6fd4);color:#fff;font-size:12px;display:flex;align-items:center;justify-content:center}
.tbk-outline .tbk-oc-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:12px}
.tbk-oc-name{font-size:18px;font-weight:800;color:#13243b}
.tbk-oc-sub{font-size:12px;color:var(--muted,#6b7a90);margin-top:3px}
.tbk-secs{display:flex;flex-direction:column;gap:10px}
.tbk-sec{padding:12px 14px;background:#f6f9fe;border:1px solid #e4edf9;border-radius:12px}
.tbk-sec-h{font-weight:800;color:#1a6fd4;margin-bottom:8px;font-size:14px;display:flex;align-items:center;gap:6px}
.tbk-sec-ic{font-size:15px}
.tbk-li{display:flex;align-items:flex-start;gap:10px;padding:7px 0;border-top:1px dashed #e1e9f4}
.tbk-li:first-child{border-top:none}
.tbk-n{width:20px;height:20px;flex:0 0 20px;border-radius:50%;background:#1a6fd4;color:#fff;font-size:11px;display:flex;align-items:center;justify-content:center;margin-top:1px}
.tbk-t{flex:1;font-size:13px;color:#22324a;line-height:1.5}
.tbk-p{flex:0 0 auto;font-size:12px;color:#2e9e6b;font-weight:700;white-space:nowrap}
.tbk-extra{margin-top:8px;padding:8px 10px;background:#fff6e9;border:1px solid #ffe1ad;border-radius:8px;font-size:12px;color:#9a6a16}
.tbk-oc-tip{margin-top:10px;font-size:12px;color:var(--muted,#6b7a90);background:#f0f5fb;padding:9px 11px;border-radius:8px;line-height:1.6}
.tbk-oc-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:12px}

.tbk-guide h3{margin:6px 0 8px;font-size:15px;color:#13243b}
.tbk-guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.tbk-info{background:#f6f9fe;border:1px solid #e4edf9;border-radius:12px;padding:12px 14px}
.tbk-info label{display:block;font-size:12px;font-weight:700;color:#1a6fd4;margin-bottom:6px}
.tbk-info .pi-val{font-size:12.5px;color:#33455e;line-height:1.7}
.tbk-info-wide{grid-column:1 / -1}
.tbk-copy-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:14px}
@media(max-width:680px){.tbk-copy-row{grid-template-columns:1fr}.tbk-guide-grid{grid-template-columns:1fr}}
.tbk-copy-block{background:#fff;border:1px solid #e4edf9;border-radius:12px;padding:13px 14px;display:flex;flex-direction:column}
.tbk-copy-h{font-size:13.5px;font-weight:800;color:#13243b;margin-bottom:8px;display:flex;flex-direction:column;gap:2px}
.tbk-copy-h span{font-size:11px;font-weight:400;color:#8a99ad}
.tbk-copy-block .btn-copy{margin-top:10px;align-self:flex-start}
.tbk-copy-src{white-space:pre-wrap;word-break:break-word;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;line-height:1.7;color:#2c3e57;background:#f6f9fe;border:1px solid #e4edf9;border-radius:10px;padding:12px;max-height:300px;overflow:auto;margin-bottom:0}
.btn-copy{background:#eef4fc;color:#1a6fd4;border:1px solid #cfe0f6;padding:7px 14px;border-radius:9px;font-weight:700;font-size:13px;cursor:pointer}
.btn-copy:hover{background:#e2edfb}

/* 全站底部备案信息 */
.site-footer{white-space:nowrap;position:fixed;left:0;right:0;bottom:0;z-index:900;text-align:center;
  padding:7px 12px;font-size:12px;color:#7a8290;background:rgba(255,255,255,.92);
  border-top:1px solid #eef1f6;backdrop-filter:blur(4px);letter-spacing:.2px;pointer-events:none}
.site-footer:hover{color:#5a6472}
.site-footer a{pointer-events:auto;color:#1a6fd4;text-decoration:none}
.site-footer a:hover{text-decoration:underline}

/* ============ 学习手册 ============ */
.lb-wrap{max-width:940px}
.lb-ch{border:1px solid var(--line);border-radius:14px;background:#fff;margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow)}
.lb-ch>summary{display:flex;align-items:center;gap:10px;padding:15px 18px;cursor:pointer;list-style:none;font-weight:700;color:var(--brand2)}
.lb-ch>summary::-webkit-details-marker{display:none}
.lb-ch-ic{font-size:20px}
.lb-ch-t{font-size:15.5px}
.lb-ch-sub{font-weight:400;color:var(--muted);font-size:13px;margin-left:auto;text-align:right}
.lb-ch[open]>summary{border-bottom:1px solid var(--line)}
.lb-lessons{padding:4px 18px 14px}
.lb-lesson{display:flex;align-items:flex-start;gap:12px;padding:13px 0;border-bottom:1px dashed var(--line)}
.lb-lesson:last-child{border-bottom:none}
.lb-lesson-t{font-weight:700;color:var(--ink);margin-bottom:5px;font-size:14.5px}
.lb-lesson-d{color:var(--muted);font-size:13.5px;line-height:1.75}
.lb-go{margin-left:auto;flex:none;align-self:center;background:var(--brand-soft);color:#fff;border:none;border-radius:9px;padding:8px 14px;font-size:13px;font-weight:600;cursor:pointer;white-space:nowrap}
.lb-go:hover{filter:brightness(1.06)}

/* ============ VIP 图标 + 状态徽章 ============ */
.vip-badge{display:inline-flex;align-items:center;gap:4px;vertical-align:middle;font-size:12.5px;font-weight:700;line-height:1;padding:4px 11px;border-radius:999px;background:#eef0f3;color:#9aa0a6;border:1px solid #e3e5e8}
.vip-badge.vip{background:linear-gradient(135deg,#f7c948,#e0a020);color:#5b3b00;border:1px solid rgba(224,160,32,.55);box-shadow:0 2px 6px rgba(224,160,32,.25)}
.vip-line{margin-top:2px}
/* ============ 算力余额 / 充值 ============ */
.token-line{color:#374151;font-size:13.5px}
.token-line b{color:#1a6fd4;font-size:15px}
.pkg-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:14px 0}
.pkg-card{border:1px solid #e3e5e8;border-radius:14px;padding:16px;text-align:center;background:#fafbfc;transition:.15s}
.pkg-card:hover{border-color:#1a6fd4;box-shadow:0 4px 14px rgba(26,111,212,.12)}
.pkg-name{font-size:13px;color:#8a9099;margin-bottom:6px}
.pkg-tokens{font-size:22px;font-weight:800;color:#1f2d3d}
.pkg-tokens small{font-size:12px;font-weight:600;color:#9aa0a6}
.pkg-price{font-size:15px;color:#e0552b;font-weight:700;margin:6px 0 12px}
.pkg-buy{width:100%}
.muted{color:#8a9099;font-size:13px}.muted.small{font-size:12px;margin-top:8px}


/* ===== 应用搭建：类型模板网格 ===== */
.build-tpl-box{background:#f7faff;border:1px solid var(--line,#e3e8ef);border-radius:14px;padding:14px}
.build-tpl-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(148px,1fr));gap:10px;margin-top:8px}
.build-tpl{display:flex;flex-direction:column;gap:4px;text-align:left;padding:12px 13px;border:1.5px solid var(--line,#e3e8ef);border-radius:14px;background:#fff;cursor:pointer;transition:.15s;font:inherit}
.build-tpl:hover{border-color:var(--brand,#0a2d5c);transform:translateY(-2px);box-shadow:0 6px 16px rgba(10,45,92,.10)}
.build-tpl.sel{border-color:var(--brand,#0a2d5c);background:#eaf1ff;box-shadow:0 4px 14px rgba(10,45,92,.14)}
.bt-ic{font-size:22px;line-height:1}
.bt-name{font-weight:700;color:#0a2d5c;font-size:14px}
.bt-desc{font-size:12px;color:#6b7280;line-height:1.4}
/* 学段切换 */
.bt-level-tabs{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.bt-lv{padding:7px 16px;border-radius:18px;border:1.5px solid var(--line,#e3e8ef);background:#fff;color:#0a2d5c;font-weight:600;font-size:13px;cursor:pointer;transition:.15s;font:inherit}
.bt-lv:hover{border-color:var(--brand,#0a2d5c)}
.bt-lv.active{border-color:var(--brand,#0a2d5c);background:var(--brand,#0a2d5c);color:#fff}
/* 学科分组 */
.bt-subject{grid-column:1/-1}
.bt-subject-h{font-weight:700;color:#0a2d5c;margin:8px 0 2px;font-size:13px;display:flex;align-items:center;gap:6px}
.bt-subject-h::after{content:'';flex:1;height:1px;background:var(--line,#e3e8ef)}
.bt-subject-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(148px,1fr));gap:10px;margin-top:6px}
/* 难度徽标 */
.bt-top{display:flex;justify-content:space-between;align-items:flex-start;width:100%}
.bt-diff{font-size:10px;font-weight:700;padding:2px 8px;border-radius:10px;color:#fff;line-height:1.5;flex:none}
.bt-d-basic{background:#2e9e6b}
.bt-d-mid{background:#e08a1e}
.bt-d-hard{background:#dc2626}