/* =============================================================
   桂品出海 · 智能体实训平台  样式表
   ============================================================= */
:root{
  --brand:#10b981; --brand-d:#059669; --brand-2:#0ea5a5;
  --brand-grad:linear-gradient(135deg,#10b981 0%,#0ea5a5 100%);
  --brand-soft:#e7f8f1;
  --accent:#f59e0b;
  --bg:#f4f7fb; --card:#fff;
  --text:#1f2a37; --text-2:#4b5563; --muted:#8a94a6;
  --border:#e8ecf3; --border-2:#dfe5ee;
  --danger:#ef4444; --danger-soft:#fdecec;
  --blue:#2f80ed; --blue-soft:#eaf2fe;
  --amber-soft:#fef4e4; --purple:#9b51e0; --purple-soft:#f3ebfc;
  --radius:16px; --radius-sm:10px;
  --shadow:0 6px 24px rgba(23,43,77,.06);
  --shadow-lg:0 18px 48px rgba(23,43,77,.14);
  --sidebar-w:248px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--text);background:var(--bg);font-size:14px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%}
h1,h2,h3,h4{margin:0;font-weight:700}
p{margin:0}
svg{width:20px;height:20px;fill:currentColor;display:block}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:#cfd8e6;border-radius:9px}
::-webkit-scrollbar-track{background:transparent}

/* ---------------- 布局 ---------------- */
.app-body{display:flex;min-height:100vh}
.sidebar{
  width:var(--sidebar-w);background:#0c1f1a;color:#cfe6dd;
  position:fixed;inset:0 auto 0 0;display:flex;flex-direction:column;
  padding:18px 14px;z-index:60;transition:transform .28s ease;
  background-image:radial-gradient(1200px 400px at -20% -10%,rgba(16,185,129,.25),transparent);
}
.sidebar-brand{display:flex;align-items:center;gap:12px;padding:6px 8px 18px}
.brand-logo{
  width:42px;height:42px;border-radius:13px;background:var(--brand-grad);
  color:#04231a;font-weight:800;font-size:22px;display:grid;place-items:center;
  box-shadow:0 8px 20px rgba(16,185,129,.35);flex:0 0 auto;
}
.brand-text b{display:block;color:#fff;font-size:15px;line-height:1.2}
.brand-text small{color:#7fae9c;font-size:11.5px}
.sidebar-nav{flex:1;display:flex;flex-direction:column;gap:4px;overflow-y:auto;padding:4px}
.nav-item{
  display:flex;align-items:center;gap:12px;padding:11px 13px;border-radius:12px;
  color:#a9c7bc;font-weight:500;transition:.18s;cursor:pointer;
}
.nav-item svg{width:19px;height:19px;opacity:.85}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-item.active{background:var(--brand-grad);color:#04231a;font-weight:700;box-shadow:0 8px 18px rgba(16,185,129,.3)}
.nav-item.active svg{opacity:1}
.nav-group{color:#5f8877;font-size:11px;letter-spacing:.12em;text-transform:uppercase;padding:16px 14px 6px}
.sidebar-foot{border-top:1px solid rgba(255,255,255,.08);padding-top:12px;display:flex;align-items:center;gap:10px}
.user-mini{display:flex;align-items:center;gap:10px;flex:1;min-width:0}
.avatar{width:38px;height:38px;border-radius:11px;background:var(--brand-grad);color:#04231a;font-weight:800;display:grid;place-items:center;font-size:16px;flex:0 0 auto}
.um-info{min-width:0}
.um-info b{display:block;color:#fff;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.um-info small{color:#7fae9c;font-size:11px}
.logout-btn{color:#9bbfb1;padding:8px;border-radius:10px;transition:.18s}
.logout-btn:hover{background:rgba(239,68,68,.2);color:#ffb4b4}
.sidebar-mask{display:none;position:fixed;inset:0;background:rgba(9,20,17,.5);z-index:55;backdrop-filter:blur(2px)}

.main{flex:1;margin-left:var(--sidebar-w);display:flex;flex-direction:column;min-width:0}
.topbar{
  position:sticky;top:0;z-index:40;background:rgba(244,247,251,.86);backdrop-filter:blur(10px);
  display:flex;align-items:center;gap:14px;padding:14px 26px;border-bottom:1px solid var(--border);
}
.topbar-title{font-size:18px;flex:1;font-weight:700}
.topbar-right{display:flex;align-items:center;gap:12px}
.icon-btn{background:#fff;border:1px solid var(--border);border-radius:11px;padding:8px;cursor:pointer;color:var(--text-2);display:none;transition:.18s}
.icon-btn:hover{border-color:var(--brand);color:var(--brand)}
.points-chip{
  display:inline-flex;align-items:center;gap:7px;background:#fff;border:1px solid var(--border);
  padding:7px 13px;border-radius:999px;font-weight:700;color:var(--brand-d);font-size:13px;
}
.points-chip svg{width:15px;height:15px;color:var(--accent)}
.content{padding:24px 26px 60px;max-width:1400px;width:100%}

/* ---------------- 按钮 ---------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:10px 18px;border-radius:11px;border:1px solid transparent;background:#fff;color:var(--text);
  font-weight:600;font-size:13.5px;cursor:pointer;transition:.18s;white-space:nowrap;line-height:1;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--brand-grad);color:#04231a;box-shadow:0 8px 18px rgba(16,185,129,.28)}
.btn-primary:hover{box-shadow:0 10px 24px rgba(16,185,129,.4)}
.btn-outline{border-color:var(--border-2);color:var(--text-2)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-d);background:var(--brand-soft)}
.btn-ghost{background:transparent;color:var(--text-2)}
.btn-ghost:hover{background:#eef2f8}
.btn-danger{background:var(--danger-soft);color:var(--danger)}
.btn-danger:hover{background:var(--danger);color:#fff}
.btn-sm{padding:7px 13px;font-size:12.5px;border-radius:9px}
.btn-lg{padding:13px 26px;font-size:15px;border-radius:13px}
.btn-block{width:100%}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none}
.btn-link{background:none;border:none;color:var(--brand-d);cursor:pointer;font-weight:600;padding:4px}

/* ---------------- 卡片 ---------------- */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
.card-head{display:flex;align-items:center;gap:12px;padding:16px 20px;border-bottom:1px solid var(--border)}
.card-head h3{font-size:15px;flex:1}
.card-body{padding:20px}
.card-pad{padding:20px}
.card-title{font-size:15px;font-weight:700}
.card-hint{color:var(--muted);font-size:12.5px}

.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

/* ---------------- 统计卡 ---------------- */
.stat{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.stat-icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--brand-soft);color:var(--brand-d);margin-bottom:12px}
.stat-icon svg{width:21px;height:21px}
.stat-val{font-size:26px;font-weight:800;letter-spacing:-.02em}
.stat-label{color:var(--muted);font-size:12.5px;margin-top:2px}
.stat.c-blue .stat-icon{background:var(--blue-soft);color:var(--blue)}
.stat.c-amber .stat-icon{background:var(--amber-soft);color:#d97706}
.stat.c-purple .stat-icon{background:var(--purple-soft);color:var(--purple)}

/* ---------------- 页头 ---------------- */
.page-head{display:flex;align-items:flex-start;gap:16px;margin-bottom:22px;flex-wrap:wrap}
.page-head .ph-main{flex:1;min-width:200px}
.page-title{font-size:22px;font-weight:800;letter-spacing:-.02em}
.page-sub{color:var(--muted);font-size:13.5px;margin-top:4px}
.actions{display:flex;gap:10px;flex-wrap:wrap}
.section-title{font-size:16px;font-weight:700;margin:26px 0 14px;display:flex;align-items:center;gap:9px}
.section-title::before{content:"";width:4px;height:16px;border-radius:4px;background:var(--brand-grad)}

/* ---------------- 表单 ---------------- */
.form-row{display:grid;gap:16px;grid-template-columns:repeat(2,1fr)}
.form-group{margin-bottom:16px}
.form-group>label{display:block;font-weight:600;margin-bottom:7px;font-size:13.5px}
.form-group>label .req{color:var(--danger);margin-left:2px}
.input,.select,.textarea{
  width:100%;padding:11px 14px;border:1px solid var(--border-2);border-radius:11px;
  font-size:14px;font-family:inherit;color:var(--text);background:#fff;transition:.18s;
}
.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(16,185,129,.12)}
.textarea{resize:vertical;min-height:110px;line-height:1.7}
.select{appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%238a94a6'><path d='M7 10l5 5 5-5z'/></svg>");background-repeat:no-repeat;background-position:right 10px center;background-size:18px;padding-right:36px}
.form-hint{color:var(--muted);font-size:12px;margin-top:6px}
.form-group .row-inline{display:flex;gap:10px;align-items:center}
.check{display:inline-flex;align-items:center;gap:8px;cursor:pointer;font-size:13.5px}
.check input{width:17px;height:17px;accent-color:var(--brand)}

/* ---------------- 徽标 ---------------- */
.badge{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:600;background:#eef2f8;color:var(--text-2)}
.badge-green{background:var(--brand-soft);color:var(--brand-d)}
.badge-blue{background:var(--blue-soft);color:var(--blue)}
.badge-amber{background:var(--amber-soft);color:#b45309}
.badge-red{background:var(--danger-soft);color:var(--danger)}
.badge-purple{background:var(--purple-soft);color:var(--purple)}
.badge-gray{background:#eef2f8;color:var(--muted)}

/* ---------------- 表格 ---------------- */
.table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--border);background:#fff}
.table{width:100%;border-collapse:collapse;font-size:13.5px;min-width:640px}
.table th{text-align:left;padding:13px 16px;background:#f8fafc;color:var(--muted);font-weight:600;font-size:12.5px;white-space:nowrap;border-bottom:1px solid var(--border)}
.table td{padding:13px 16px;border-bottom:1px solid var(--border);vertical-align:middle}
.table tr:last-child td{border-bottom:none}
.table tbody tr:hover{background:#fafcfe}
.table .t-actions{display:flex;gap:6px;flex-wrap:wrap}

/* ---------------- 空状态 ---------------- */
.empty{text-align:center;padding:52px 20px;color:var(--muted)}
.empty-ico{width:66px;height:66px;border-radius:20px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;margin:0 auto 16px}
.empty-ico svg{width:30px;height:30px}
.empty h3{color:var(--text);font-size:16px;margin-bottom:6px}

/* ---------------- 弹窗 ---------------- */
.modal-mask{position:fixed;inset:0;background:rgba(15,30,26,.5);backdrop-filter:blur(3px);z-index:100;display:none;align-items:center;justify-content:center;padding:20px}
.modal-mask.open{display:flex;animation:fade .2s}
.modal{background:#fff;border-radius:20px;width:100%;max-width:520px;max-height:90vh;overflow:auto;box-shadow:var(--shadow-lg);animation:pop .24s}
.modal-head{display:flex;align-items:center;padding:18px 22px;border-bottom:1px solid var(--border)}
.modal-head h3{flex:1;font-size:16px}
.modal-body{padding:22px}
.modal-foot{padding:16px 22px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:10px}
@keyframes fade{from{opacity:0}to{opacity:1}}
@keyframes pop{from{opacity:0;transform:translateY(14px) scale(.98)}to{opacity:1;transform:none}}

/* ---------------- Toast ---------------- */
.toast-wrap{position:fixed;top:18px;right:18px;z-index:200;display:flex;flex-direction:column;gap:10px}
.toast{background:#0f2a22;color:#e6f5ef;padding:12px 18px;border-radius:12px;box-shadow:var(--shadow-lg);font-size:13.5px;font-weight:500;display:flex;align-items:center;gap:9px;animation:slidein .26s;max-width:340px}
.toast.ok{background:#0f3a2b;border-left:3px solid var(--brand)}
.toast.err{background:#3a1414;border-left:3px solid var(--danger)}
@keyframes slidein{from{opacity:0;transform:translateX(30px)}to{opacity:1;transform:none}}

/* ---------------- 标签页 ---------------- */
.tabs{display:flex;gap:6px;border-bottom:1px solid var(--border);margin-bottom:20px;overflow-x:auto}
.tab{padding:11px 16px;font-weight:600;color:var(--muted);cursor:pointer;border-bottom:2px solid transparent;white-space:nowrap;transition:.18s}
.tab:hover{color:var(--text)}
.tab.active{color:var(--brand-d);border-bottom-color:var(--brand)}

/* ---------------- 智能体卡片 ---------------- */
.agent-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px;transition:.2s}
.agent-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#d5e6de}
.agent-top{display:flex;align-items:center;gap:12px}
.agent-ico{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;color:#fff;font-size:20px;flex:0 0 auto}
.agent-ico svg{width:23px;height:23px}
.agent-name{font-weight:700;font-size:15px}
.agent-type{font-size:12px;color:var(--muted)}
.agent-desc{color:var(--text-2);font-size:13px;min-height:38px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.agent-meta{display:flex;gap:14px;color:var(--muted);font-size:12px;border-top:1px solid var(--border);padding-top:12px}
.agent-meta b{color:var(--text);font-weight:700}
.agent-actions{display:flex;gap:8px;flex-wrap:wrap}

/* ---------------- 预设选择卡 ---------------- */
.preset-card{background:#fff;border:2px solid var(--border);border-radius:var(--radius);padding:20px;cursor:pointer;transition:.2s;position:relative}
.preset-card:hover{border-color:var(--brand);box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.preset-card.selected{border-color:var(--brand);background:var(--brand-soft)}
.preset-card .pc-ico{width:50px;height:50px;border-radius:14px;display:grid;place-items:center;color:#fff;margin-bottom:14px}
.preset-card .pc-ico svg{width:25px;height:25px}
.preset-card h3{font-size:15.5px;margin-bottom:7px}
.preset-card p{color:var(--text-2);font-size:13px}
.preset-card .pc-check{position:absolute;top:16px;right:16px;width:24px;height:24px;border-radius:50%;border:2px solid var(--border-2);display:grid;place-items:center;color:#fff}
.preset-card.selected .pc-check{background:var(--brand);border-color:var(--brand)}

/* ---------------- 拖拽上传 ---------------- */
.dropzone{border:2px dashed var(--border-2);border-radius:var(--radius);padding:34px 20px;text-align:center;cursor:pointer;transition:.2s;background:#fbfdff}
.dropzone:hover,.dropzone.dragover{border-color:var(--brand);background:var(--brand-soft)}
.dropzone .dz-ico{width:56px;height:56px;border-radius:16px;background:#fff;border:1px solid var(--border);display:grid;place-items:center;margin:0 auto 14px;color:var(--brand)}
.dropzone .dz-ico svg{width:26px;height:26px}
.dropzone b{font-size:15px}
.dropzone p{color:var(--muted);font-size:12.5px;margin-top:5px}

/* ---------------- 文件列表 ---------------- */
.file-item{display:flex;align-items:center;gap:13px;padding:13px 15px;border:1px solid var(--border);border-radius:12px;margin-bottom:9px;background:#fff;transition:.18s}
.file-item:hover{border-color:#d5e6de;background:#fbfdff}
.file-ico{width:40px;height:40px;border-radius:11px;background:var(--brand-soft);color:var(--brand-d);display:grid;place-items:center;font-weight:700;font-size:11px;flex:0 0 auto}
.file-info{flex:1;min-width:0}
.file-info b{display:block;font-size:13.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.file-info small{color:var(--muted);font-size:12px}
.file-actions{display:flex;gap:6px}

/* ---------------- 对话 ---------------- */
.chat-wrap{display:flex;flex-direction:column;height:calc(100vh - 190px);min-height:460px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.chat-head{padding:14px 18px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:12px}
.chat-msgs{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:16px;background:#fafcfe}
.msg{display:flex;gap:11px;max-width:82%}
.msg-avatar{width:36px;height:36px;border-radius:11px;flex:0 0 auto;display:grid;place-items:center;font-weight:700;font-size:14px}
.msg-user{align-self:flex-end;flex-direction:row-reverse}
.msg-user .msg-avatar{background:var(--blue-soft);color:var(--blue)}
.msg-ai .msg-avatar{background:var(--brand-grad);color:#04231a}
.msg-bubble{padding:12px 16px;border-radius:14px;font-size:14px;line-height:1.72;white-space:pre-wrap;word-break:break-word}
.msg-ai .msg-bubble{background:#fff;border:1px solid var(--border);border-top-left-radius:4px}
.msg-user .msg-bubble{background:var(--brand-grad);color:#04231a;border-top-right-radius:4px}
.msg-bubble h3{font-size:15px;margin:8px 0 4px}
.msg-bubble code{background:#eef2f8;padding:1px 6px;border-radius:5px;font-size:13px}
.msg-bubble pre{background:#0f2a22;color:#d7f5e9;padding:12px;border-radius:10px;overflow-x:auto;margin:8px 0}
.chat-input-wrap{border-top:1px solid var(--border);padding:14px 18px;background:#fff}
.chat-input-row{display:flex;gap:10px;align-items:flex-end}
.chat-input{flex:1;border:1px solid var(--border-2);border-radius:13px;padding:12px 14px;resize:none;font-family:inherit;font-size:14px;min-height:46px;max-height:150px;line-height:1.6}
.chat-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(16,185,129,.12)}
.chat-tools{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}
.chip{background:#eef2f8;border:1px solid transparent;border-radius:999px;padding:6px 13px;font-size:12.5px;cursor:pointer;transition:.18s;color:var(--text-2)}
.chip:hover{background:var(--brand-soft);color:var(--brand-d);border-color:#bfe8d6}
.typing{display:inline-flex;gap:4px}
.typing i{width:7px;height:7px;border-radius:50%;background:var(--brand);animation:blink 1.2s infinite}
.typing i:nth-child(2){animation-delay:.2s}
.typing i:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,60%,100%{opacity:.25}30%{opacity:1}}

/* ---------------- 生图 ---------------- */
.img-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px}
.img-card{border:1px solid var(--border);border-radius:14px;overflow:hidden;background:#fff;transition:.2s}
.img-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.img-card img{width:100%;aspect-ratio:1;object-fit:cover;display:block;background:#f0f4f8}
.img-card .ic-foot{padding:10px 12px;display:flex;align-items:center;gap:8px}
.img-card .ic-foot small{color:var(--muted);font-size:11.5px;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ---------------- 进度条 ---------------- */
.progress{height:8px;background:#eef2f8;border-radius:8px;overflow:hidden}
.progress i{display:block;height:100%;background:var(--brand-grad);border-radius:8px;transition:width .4s}

/* ---------------- 键值 ---------------- */
.kv{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px dashed var(--border)}
.kv:last-child{border-bottom:none}
.kv span{color:var(--muted)}
.kv b{font-weight:700;text-align:right}

/* ---------------- 错误页 ---------------- */
.error-page{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:30px}
.error-code{font-size:88px;font-weight:900;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.error-page h1{margin:14px 0 8px;font-size:22px}
.error-page p{color:var(--muted);margin-bottom:22px}

/* ---------------- 工具类 ---------------- */
.flex{display:flex}.between{justify-content:space-between}.center{align-items:center}.wrap{flex-wrap:wrap}
.gap{gap:12px}.gap-sm{gap:8px}.gap-lg{gap:20px}
.muted{color:var(--muted)}.text-sm{font-size:12.5px}.text-2{color:var(--text-2)}
.mt-0{margin-top:0}.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}.mt-4{margin-top:32px}
.mb-1{margin-bottom:8px}.mb-2{margin-bottom:16px}.mb-3{margin-bottom:24px}
.fw7{font-weight:700}.nowrap{white-space:nowrap}.tc{text-align:center}.tr{text-align:right}
.hidden{display:none!important}
.grow{flex:1}

/* ---------------- 响应式 ---------------- */
@media (max-width:1080px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:820px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:none}
  .sidebar-mask.open{display:block}
  .main{margin-left:0}
  .icon-btn{display:inline-flex}
  .content{padding:18px 16px 60px}
  .topbar{padding:12px 16px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .page-title{font-size:19px}
  .chat-wrap{height:calc(100vh - 160px)}
  .msg{max-width:92%}
}

/* =============================================================
   营销首页（landing） lp-*
   ============================================================= */
.landing{background:
  radial-gradient(900px 500px at 85% -8%,rgba(14,165,165,.16),transparent),
  radial-gradient(760px 460px at -10% 6%,rgba(16,185,129,.18),transparent),
  #f6faf8;
  min-height:100vh;
}
.lp-nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);background:rgba(246,250,248,.82);border-bottom:1px solid var(--border)}
.lp-nav-in{max-width:1180px;margin:0 auto;padding:14px 22px;display:flex;align-items:center;gap:14px}
.lp-brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:16px;color:var(--text)}
.lp-brand small{display:block;font-weight:500;color:var(--muted);font-size:11.5px;letter-spacing:.02em}
.lp-links{margin-left:auto;display:flex;align-items:center;gap:22px}
.lp-links a{color:var(--text-2);font-weight:600;font-size:13.5px;transition:.18s}
.lp-links a:hover{color:var(--brand-d)}
.lp-nav-act{display:flex;align-items:center;gap:10px}

.lp-hero{max-width:1180px;margin:0 auto;padding:66px 22px 30px;display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center}
.lp-pill{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--border);color:var(--brand-d);
  padding:7px 14px;border-radius:999px;font-size:12.5px;font-weight:700;box-shadow:var(--shadow)}
.lp-pill svg{width:15px;height:15px;color:var(--accent)}
.lp-hero-text h1{font-size:42px;line-height:1.18;margin:20px 0 0;letter-spacing:-.5px}
.lp-hero-text .hl{background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.lp-hero-text p{margin-top:18px;color:var(--text-2);font-size:16px;line-height:1.75;max-width:560px}
.lp-hero-btns{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
.lp-hero-stats{display:flex;gap:34px;margin-top:38px;flex-wrap:wrap}
.lp-hero-stats b{display:block;font-size:26px;color:var(--brand-d);font-weight:800;letter-spacing:-.5px}
.lp-hero-stats span{color:var(--muted);font-size:12.5px}

.lp-hero-visual{position:relative;height:420px}
.lp-orb{position:absolute;border-radius:50%;filter:blur(38px);opacity:.55}
.lp-orb.o1{width:260px;height:260px;background:#10b981;top:-20px;right:20px}
.lp-orb.o2{width:220px;height:220px;background:#0ea5a5;bottom:-10px;left:0}
.lp-card-stack{position:absolute;inset:0;display:grid;place-items:center}
.lp-mini-card{position:relative;z-index:2;background:#fff;border:1px solid var(--border);border-radius:18px;
  box-shadow:var(--shadow-lg);padding:18px 20px;display:flex;align-items:center;gap:14px;width:340px}
.lp-mini-card:nth-child(1){transform:translate(-26px,-118px) rotate(-3deg)}
.lp-mini-card:nth-child(2){transform:translate(30px,-6px) rotate(2deg)}
.lp-mini-card:nth-child(3){transform:translate(-14px,108px) rotate(-2deg)}
.lp-mc-ico{width:46px;height:46px;border-radius:13px;background:var(--brand-soft);color:var(--brand-d);display:grid;place-items:center;flex:0 0 auto}
.lp-mc-ico svg{width:24px;height:24px}
.lp-mini-card b{display:block;font-size:14px}
.lp-mini-card small{color:var(--muted);font-size:12px}

.lp-section{max-width:1180px;margin:0 auto;padding:56px 22px}
.lp-sec-head{text-align:center;max-width:640px;margin:0 auto 40px}
.lp-sec-head h2{font-size:30px;letter-spacing:-.4px}
.lp-sec-head p{margin-top:12px;color:var(--text-2);font-size:15px}
.lp-preset-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.lp-preset{background:#fff;border:1px solid var(--border);border-radius:18px;padding:26px 22px;box-shadow:var(--shadow);transition:.22s;display:flex;flex-direction:column}
.lp-preset:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:#cdeee1}
.lp-preset-ico{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;color:#fff;margin-bottom:18px}
.lp-preset-ico svg{width:28px;height:28px}
.lp-preset h3{font-size:17px;margin-bottom:9px}
.lp-preset p{color:var(--text-2);font-size:13.5px;line-height:1.7;flex:1}
.lp-tag{display:inline-block;margin-top:14px;background:var(--brand-soft);color:var(--brand-d);
  font-size:11.5px;font-weight:700;padding:4px 11px;border-radius:999px}
.lp-preset-link{margin-top:16px;color:var(--brand-d);font-weight:700;font-size:13px;display:inline-flex;align-items:center;gap:5px}
.lp-preset-link svg{width:15px;height:15px}

.lp-how{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.lp-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.lp-step{background:#f8fbfa;border:1px solid var(--border);border-radius:16px;padding:26px 22px;position:relative}
.lp-step-no{width:40px;height:40px;border-radius:12px;background:var(--brand-grad);color:#04231a;font-weight:800;
  display:grid;place-items:center;font-size:17px;margin-bottom:16px}
.lp-step h3{font-size:16px;margin-bottom:8px}
.lp-step p{color:var(--text-2);font-size:13.5px;line-height:1.7}

.lp-hot-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.lp-hot{background:#fff;border:1px solid var(--border);border-radius:16px;padding:20px;box-shadow:var(--shadow);display:flex;gap:14px;transition:.2s}
.lp-hot:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.lp-hot-ico{width:48px;height:48px;border-radius:14px;background:var(--brand-soft);color:var(--brand-d);display:grid;place-items:center;flex:0 0 auto}
.lp-hot-ico svg{width:24px;height:24px}
.lp-hot-info b{font-size:14.5px;display:block}
.lp-hot-info p{color:var(--text-2);font-size:12.5px;margin-top:4px;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.lp-hot-meta{margin-top:10px;display:flex;gap:14px;color:var(--muted);font-size:11.5px}
.lp-hot-meta span{display:inline-flex;align-items:center;gap:5px}
.lp-hot-meta svg{width:13px;height:13px}

.lp-cta{max-width:1180px;margin:20px auto 0;padding:0 22px 60px}
.lp-cta-in{background:var(--brand-grad);border-radius:24px;padding:52px 40px;text-align:center;color:#04231a;box-shadow:var(--shadow-lg)}
.lp-cta-in h2{font-size:30px;letter-spacing:-.4px}
.lp-cta-in p{margin:14px auto 26px;max-width:520px;font-size:15px;opacity:.9}
.lp-cta-in .btn{background:#04231a;color:#d6f7ea;box-shadow:0 12px 28px rgba(4,35,26,.3)}

.lp-foot{border-top:1px solid var(--border);background:#fff}
.lp-foot-in{max-width:1180px;margin:0 auto;padding:26px 22px;display:flex;align-items:center;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:12.5px}
.lp-foot-in .lp-brand{font-size:14px}
.lp-foot-in .right{margin-left:auto;display:flex;gap:20px}

/* =============================================================
   认证页（auth） auth-*
   ============================================================= */
.auth-wrap{min-height:100vh;display:grid;grid-template-columns:1fr 1fr}
.auth-side{background:linear-gradient(150deg,#0c1f1a 0%,#0f3b30 60%,#0ea5a5 140%);color:#d6f0e7;position:relative;overflow:hidden}
.auth-side::after{content:"";position:absolute;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(16,185,129,.45),transparent 70%);top:-140px;right:-160px}
.auth-side-in{position:relative;z-index:2;padding:56px 52px;height:100%;display:flex;flex-direction:column}
.auth-side .lp-brand{color:#fff}
.auth-side .lp-brand small{color:#7fae9c}
.auth-side h2{margin-top:auto;font-size:30px;line-height:1.3;color:#fff;letter-spacing:-.4px}
.auth-side p{margin-top:16px;color:#a9c7bc;font-size:14px;line-height:1.8;max-width:420px}
.auth-tip{margin-top:28px;display:flex;flex-direction:column;gap:12px}
.auth-tip li{list-style:none;display:flex;align-items:center;gap:11px;color:#cfe6dd;font-size:13.5px}
.auth-tip svg{width:18px;height:18px;color:var(--brand);flex:0 0 auto}
.auth-points{margin-top:auto;padding-top:26px;color:#7fae9c;font-size:12px}

.auth-main{display:grid;place-items:center;padding:40px 22px;background:#f6faf8}
.auth-box{width:100%;max-width:400px}
.auth-box h1{font-size:26px;letter-spacing:-.4px}
.auth-box .muted{margin-top:8px;font-size:13.5px}
.auth-box .form-group{margin-top:18px}
.auth-box .btn-block{margin-top:24px}
.auth-foot{margin-top:22px;text-align:center;color:var(--muted);font-size:13px}
.auth-foot a{color:var(--brand-d);font-weight:700}

/* =============================================================
   提示条 alert
   ============================================================= */
.alert{display:flex;align-items:center;gap:10px;padding:12px 15px;border-radius:11px;font-size:13px;font-weight:600;margin-bottom:16px}
.alert svg{width:17px;height:17px;flex:0 0 auto}
.alert-err{background:var(--danger-soft);color:#b91c1c}
.alert-ok{background:var(--brand-soft);color:var(--brand-d)}
.alert-warn{background:var(--amber-soft);color:#b45309}
.alert-info{background:var(--blue-soft);color:#1d4ed8}

@media (max-width:960px){
  .lp-hero{grid-template-columns:1fr;padding-top:44px}
  .lp-hero-visual{height:340px;order:-1}
  .lp-preset-grid{grid-template-columns:repeat(2,1fr)}
  .lp-steps,.lp-hot-grid{grid-template-columns:1fr}
  .auth-wrap{grid-template-columns:1fr}
  .auth-side{display:none}
}
@media (max-width:640px){
  .lp-hero-text h1{font-size:31px}
  .lp-preset-grid{grid-template-columns:1fr}
  .lp-links{display:none}
  .lp-hero-stats{gap:22px}
}

/* =============================================================
   公开分享页（share） share-*
   ============================================================= */
.blank-body{background:#f4f7fb}
.share-wrap{max-width:860px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column;background:#fff;box-shadow:0 0 70px rgba(23,43,77,.08)}
.share-head{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:14px 22px;display:flex;align-items:center;gap:14px}
.share-avatar{width:48px;height:48px;border-radius:15px;background:var(--brand-grad);color:#04231a;display:grid;place-items:center;flex:0 0 auto;box-shadow:0 8px 20px rgba(16,185,129,.3)}
.share-avatar svg{width:24px;height:24px}
.share-title b{font-size:16px;display:block}
.share-title small{color:var(--muted);font-size:12px}
.share-body{flex:1;padding:24px 22px;display:flex;flex-direction:column;gap:18px;background:#f7fafc}
.share-intro{background:#fff;border:1px solid var(--border);border-radius:16px;padding:22px;box-shadow:var(--shadow)}
.share-intro h2{font-size:19px;letter-spacing:-.3px}
.share-intro p{color:var(--text-2);font-size:13.5px;margin-top:8px;line-height:1.8}
.share-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.share-tag{background:var(--brand-soft);color:var(--brand-d);border-radius:999px;padding:5px 12px;font-size:12px;font-weight:600}
.share-msg{display:flex;gap:12px;align-items:flex-start}
.share-msg.me{flex-direction:row-reverse}
.share-msg .bubble{max-width:76%;padding:13px 17px;border-radius:16px;font-size:14px;line-height:1.75;white-space:pre-wrap;word-break:break-word;box-shadow:var(--shadow)}
.share-msg.bot .bubble{background:#fff;border:1px solid var(--border);border-top-left-radius:5px}
.share-msg.me .bubble{background:var(--brand-grad);color:#04231a;border-top-right-radius:5px}
.share-msg .ava{width:38px;height:38px;border-radius:12px;flex:0 0 auto;display:grid;place-items:center;font-weight:700;font-size:13px}
.share-msg.bot .ava{background:var(--brand-grad);color:#04231a}
.share-msg.me .ava{background:var(--blue-soft);color:var(--blue)}
.share-foot{position:sticky;bottom:0;border-top:1px solid var(--border);padding:14px 20px;background:#fff}
.share-quick{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}
.share-inrow{display:flex;gap:10px;align-items:flex-end}
.share-in{flex:1;border:1px solid var(--border-2);border-radius:14px;padding:12px 15px;resize:none;font-family:inherit;font-size:14px;min-height:48px;max-height:150px;line-height:1.6}
.share-in:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(16,185,129,.12)}
.share-credit{text-align:center;color:var(--muted);font-size:11.5px;margin-top:12px}
.share-credit a{color:var(--brand-d);font-weight:600}
.share-tabs{display:flex;gap:6px;padding:10px 22px 0;background:#f7fafc;border-bottom:1px solid var(--border)}
.share-tab{padding:9px 18px;border-radius:12px 12px 0 0;font-size:13.5px;font-weight:600;color:var(--muted);cursor:pointer;border:1px solid transparent;border-bottom:none}
.share-tab.active{background:#fff;color:var(--brand-d);border-color:var(--border)}
.share-panel{display:none;flex:1;padding:22px}
.share-panel.active{display:block}
.share-img-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:14px;margin-top:16px}
@media (max-width:640px){
  .share-msg .bubble{max-width:84%}
  .share-head{padding:12px 16px}
  .share-body{padding:16px 14px}
  .share-foot{padding:12px 14px}
  .share-avatar{width:42px;height:42px}
}

/* ---------- 工具补充 ---------- */
.ml-2{margin-left:8px}
.mt-2{margin-top:8px}
.ico-xs{width:17px;height:17px}
.ico-xs svg{width:17px;height:17px}

/* ---------- 教师端图表 ---------- */
.progress span{display:block;height:100%;background:var(--brand-grad);border-radius:8px;transition:width .4s}
.bar-chart{display:flex;align-items:flex-end;gap:12px;height:200px;padding-top:18px}
.bar-col{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;gap:6px}
.bar-val{font-size:11.5px;color:var(--muted);font-weight:600}
.bar{width:100%;max-width:38px;background:var(--brand-grad);border-radius:8px 8px 0 0;min-height:4px;transition:height .5s}
.bar-label{font-size:11px;color:var(--muted);white-space:nowrap}
.type-row{margin-bottom:14px}
.type-row:last-child{margin-bottom:0}

/* ---------- 工单内容 ---------- */
.wo-content{font-size:13.5px;color:var(--text)}

@media (max-width:640px){
  .bar-chart{height:160px;gap:6px}
  .bar-label{font-size:9.5px;transform:rotate(-45deg);transform-origin:center}
}