/* ===== 财税实操学院 · 柠檬云绿白风 共享样式 ===== */
:root{
  --green:#15B97D; --green-d:#0E9163; --green-l:#E8F7F0; --green-ll:#F2FBF7;
  --page:#F4F7FA; --card:#FFFFFF;
  --ink:#1F2D3D; --ink-2:#2C3E50; --sub:#6B7C8F; --line:#E6ECF0; --line-2:#EEF2F5;
  --warn:#F5A623; --danger:#F5576C; --blue:#4DABF7; --purple:#7C6FD6;
  --shadow:0 2px 12px rgba(20,40,60,.06); --shadow-lg:0 8px 30px rgba(20,40,60,.10);
  --radius:14px; --radius-sm:10px; --sidebar-w:280px;
  --topnav-h:52px;
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{font-family:'PingFang SC','Microsoft YaHei',-apple-system,BlinkMacSystemFont,sans-serif;
  background:var(--page);color:var(--ink);min-height:100vh;overflow-x:hidden;line-height:1.6;
  -webkit-font-smoothing:antialiased;}
a{text-decoration:none;color:inherit}
::selection{background:var(--green-l);color:var(--green-d)}
.btn{cursor:pointer;border:none;border-radius:22px;font-weight:600;transition:all .25s;display:inline-flex;align-items:center;gap:6px;justify-content:center}
.btn-green{background:var(--green);color:#fff;padding:11px 26px;font-size:14px}
.btn-green:hover{background:var(--green-d);box-shadow:0 6px 18px rgba(21,185,125,.28);transform:translateY(-1px)}
.btn-outline{background:#fff;color:var(--green-d);border:1.5px solid var(--green);padding:9px 22px;font-size:13px}
.btn-outline:hover{background:var(--green-l)}

/* ===== 顶部导航 ===== */
.top-nav{display:flex;align-items:center;gap:2px;padding:0 18px;height:var(--topnav-h);
  background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:200;
  box-shadow:0 1px 6px rgba(20,40,60,.04)}
.top-nav .brand{display:flex;align-items:center;gap:8px;font-weight:800;font-size:16px;color:var(--ink-2);margin-right:14px}
.top-nav .brand .logo{width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,var(--green),var(--green-d));
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:15px;font-weight:900}
.top-nav .nav-links{display:flex;gap:2px;flex:1;overflow-x:auto}
.top-nav a{color:var(--sub);font-size:13.5px;padding:8px 14px;border-radius:8px;transition:all .2s;font-weight:500;white-space:nowrap}
.top-nav a:hover{color:var(--green-d);background:var(--green-l)}
.top-nav a.active{color:var(--green-d);background:var(--green-l);font-weight:600}
.top-nav .nav-right{display:flex;align-items:center;gap:10px;margin-left:auto;padding-left:12px}
.top-nav .user-chip{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);cursor:pointer}
.top-nav .user-chip .avatar{width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,var(--green),var(--blue));color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700}
.top-nav .login-pill{background:var(--green);color:#fff;padding:7px 18px;border-radius:20px;font-size:13px;font-weight:600}
.top-nav .login-pill:hover{background:var(--green-d)}

/* ===== 布局 ===== */
.app-layout{display:flex;min-height:calc(100vh - var(--topnav-h))}
.sidebar{width:var(--sidebar-w);min-width:var(--sidebar-w);background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;position:sticky;top:var(--topnav-h);height:calc(100vh - var(--topnav-h));z-index:100;overflow:hidden}
.sidebar-header{padding:14px 16px;font-size:11px;color:var(--sub);font-weight:600;letter-spacing:2px;border-bottom:1px solid var(--line-2);background:var(--green-ll)}
.nav-tree{list-style:none;padding:6px 0 40px;flex:1;overflow-y:auto;scroll-behavior:smooth}
.nav-l1{display:flex;align-items:center;padding:10px 14px;font-size:14px;font-weight:700;color:var(--ink-2);transition:all .2s;border-left:3px solid transparent;gap:8px;cursor:pointer}
.nav-l1:hover{background:var(--green-ll);color:var(--green-d)}
.nav-l1.open{color:var(--green-d)}
.nav-l1 .arrow{font-size:10px;transition:transform .2s;margin-left:auto;color:var(--sub)}
.nav-l1.open .arrow{transform:rotate(90deg)}
.nav-l2-wrap{display:none}.nav-l2-wrap.open{display:block}
.nav-l2{display:flex;align-items:center;padding:8px 14px 8px 30px;font-size:13px;color:var(--ink-2);transition:all .2s;border-left:3px solid transparent;gap:5px;cursor:pointer}
.nav-l2:hover{background:var(--green-ll);color:var(--green-d)}
.nav-l2.open{color:var(--green-d);font-weight:600}
.nav-l2 .arrow{font-size:10px;transition:transform .2s;margin-left:auto;color:var(--sub)}
.nav-l2.open .arrow{transform:rotate(90deg)}
.nav-l3-wrap{display:none}.nav-l3-wrap.open{display:block}
.nav-l3{display:block;padding:7px 14px 7px 46px;font-size:12.5px;color:var(--sub);transition:all .2s;border-left:3px solid transparent;cursor:pointer}
.nav-l3:hover{background:var(--green-ll);color:var(--ink-2)}
.nav-l3.open{color:var(--green-d);font-weight:600}
.nav-l4-wrap{display:none}.nav-l4-wrap.open{display:block}
.nav-l4{display:block;padding:6px 14px 6px 60px;font-size:12px;color:var(--sub);transition:all .2s;border-left:3px solid transparent;cursor:pointer}
.nav-l4:hover{background:var(--green-ll);color:var(--green-d)}
.nav-l4.active{color:var(--green-d);background:var(--green-l);border-left-color:var(--green);font-weight:600}
.content-area{flex:1;min-width:0;overflow-y:auto;background:var(--page)}

/* ===== 侧栏搜索入口 ===== */
.sidebar-search-wrap{padding:12px 12px 8px;border-bottom:1px solid var(--line-2);position:relative}
.sidebar-search-box{display:flex;align-items:center;background:#fff;border:1.5px solid var(--green);border-radius:10px;padding:0 12px;height:42px;cursor:pointer;transition:all .25s;box-shadow:0 0 0 3px rgba(21,185,125,.06)}
.sidebar-search-box:hover{box-shadow:0 0 0 4px rgba(21,185,125,.12)}
.sidebar-search-box .ss-icon{font-size:15px;margin-right:8px;color:var(--green-d)}
.sidebar-search-box .ss-placeholder{font-size:13px;color:var(--sub);flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sidebar-search-hint{font-size:10.5px;color:#9AA9B8;padding:6px 2px 0;text-align:center;line-height:1.4}
.hs-dropdown{position:absolute;top:100%;left:12px;right:12px;z-index:120;background:#fff;border:1.5px solid var(--green);border-radius:10px;box-shadow:var(--shadow-lg);display:none;overflow:hidden;margin-top:2px}
.hs-dropdown.show{display:block}
.hs-dropdown .hs-title{font-size:11px;color:var(--green-d);padding:10px 14px 6px;letter-spacing:1px;font-weight:600}
.hs-dropdown .hs-list{list-style:none;padding:2px 0}
.hs-dropdown .hs-item{display:block;width:100%;text-align:left;background:none;border:none;color:var(--ink-2);font-size:13px;padding:8px 14px;cursor:pointer;transition:all .15s}
.hs-dropdown .hs-item:hover{background:var(--green-l);color:var(--green-d)}

/* ===== 全局搜索面板 ===== */
.search-overlay{display:none;position:fixed;inset:0;z-index:9999;background:rgba(20,40,60,.45);backdrop-filter:blur(4px);align-items:flex-start;justify-content:center;padding-top:12vh}
.search-overlay.show{display:flex}
.search-panel{width:100%;max-width:640px;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow-lg)}
.search-input-wrap{display:flex;align-items:center;padding:16px 16px 0;gap:10px}
.search-input{flex:1;background:var(--page);border:1.5px solid var(--line);border-radius:12px;padding:12px 16px;color:var(--ink);font-size:16px;outline:none;transition:border-color .2s}
.search-input:focus{border-color:var(--green)}
.search-input::placeholder{color:var(--sub)}
.search-close{width:32px;height:32px;border-radius:50%;border:none;background:var(--line);color:var(--sub);font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.search-close:hover{background:var(--green-l);color:var(--green-d)}
.search-results{max-height:62vh;overflow-y:auto;padding:12px 16px 20px}
.search-empty{text-align:center;color:var(--sub);padding:40px 20px;font-size:14px}
.search-group{margin-bottom:16px}
.search-group-title{font-size:12px;font-weight:700;color:var(--green-d);padding:6px 8px 4px;letter-spacing:1px;border-bottom:1px solid var(--line-2);margin-bottom:6px}
.search-item{display:flex;align-items:flex-start;padding:10px 8px;border-radius:8px;cursor:pointer;transition:all .15s;gap:10px;text-decoration:none}
.search-item:hover{background:var(--green-ll)}
.search-item .si-tag{flex-shrink:0;display:inline-block;padding:2px 9px;border-radius:6px;font-size:10.5px;font-weight:600;white-space:nowrap}
.si-tag.skill{background:rgba(77,171,247,.12);color:#2B7FBF}
.si-tag.course{background:rgba(21,185,125,.12);color:var(--green-d)}
.si-tag.faq{background:rgba(245,166,35,.14);color:#C77F12}
.si-tag.tool{background:rgba(124,111,214,.12);color:#5B4FB0}
.si-tag.material{background:rgba(21,185,125,.12);color:var(--green-d)}
.si-tag.job{background:rgba(124,111,214,.12);color:#5B4FB0}
.si-tag.policy{background:rgba(245,87,108,.12);color:#C53A52}
.search-item .si-body{flex:1;min-width:0}
.search-item .si-title{font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:2px;line-height:1.3}
.search-item .si-title em{font-style:normal;color:var(--green-d);font-weight:700}
.search-item .si-desc{font-size:12px;color:var(--sub);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.search-more{display:block;padding:6px 8px;font-size:12px;color:var(--green-d);cursor:pointer;border-radius:6px;font-weight:600}
.search-more:hover{background:var(--green-ll)}

/* ===== 通用区块 ===== */
.section{max-width:1120px;margin:0 auto;padding:36px 24px}
.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.section-title{font-size:20px;font-weight:800;color:var(--ink-2);display:flex;align-items:center;gap:10px}
.section-title::before{content:'';display:inline-block;width:4px;height:20px;background:var(--green);border-radius:2px}
.section-more{font-size:13px;color:var(--green-d);font-weight:600}
.section-more:hover{text-decoration:underline}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);transition:all .25s}
.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.badge{display:inline-block;padding:3px 11px;border-radius:20px;font-size:11px;font-weight:600}
.badge.green{background:var(--green-l);color:var(--green-d)}
.badge.blue{background:rgba(77,171,247,.12);color:#2B7FBF}
.badge.purple{background:rgba(124,111,214,.12);color:#5B4FB0}
.badge.warn{background:rgba(245,166,35,.14);color:#C77F12}
.footer{text-align:center;padding:28px 20px;color:var(--sub);font-size:12px;border-top:1px solid var(--line);background:#fff}

/* ===== 二维码解锁弹窗 ===== */
.qr-overlay{display:none;position:fixed;inset:0;z-index:1000;background:rgba(20,40,60,.5);backdrop-filter:blur(4px);align-items:center;justify-content:center}
.qr-overlay.show{display:flex}
.qr-modal{background:#fff;border:1px solid var(--line);border-radius:18px;padding:36px 36px 30px;text-align:center;max-width:400px;width:90%;position:relative;box-shadow:var(--shadow-lg);animation:qrIn .3s ease}
.qr-modal h2{font-size:21px;font-weight:800;color:var(--ink-2);margin-bottom:8px}
.qr-modal .qr-sub{font-size:14px;color:var(--sub);margin-bottom:20px}
.qr-modal img{width:220px;height:auto;border-radius:10px;border:1px solid var(--line)}
.qr-modal .qr-course-hint{font-size:14px;color:var(--green-d);font-weight:700;margin-top:16px;padding:9px 16px;background:var(--green-l);border-radius:10px;display:inline-block}
.qr-close{position:absolute;top:12px;right:16px;width:34px;height:34px;border-radius:50%;border:none;background:var(--line);color:var(--sub);font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center}
.qr-close:hover{background:var(--green-l);color:var(--green-d)}
@keyframes qrIn{from{opacity:0;transform:scale(.92)}to{opacity:1;transform:scale(1)}}
.qr-trigger{position:fixed;right:22px;bottom:22px;z-index:300;background:var(--green);color:#fff;padding:13px 20px;border-radius:30px;font-size:14px;font-weight:700;box-shadow:0 8px 24px rgba(21,185,125,.35);cursor:pointer;display:flex;align-items:center;gap:8px;transition:all .25s}
.qr-trigger:hover{background:var(--green-d);transform:translateY(-2px)}

/* ===== 响应式 ===== */
.hamburger{display:none;position:fixed;top:9px;left:12px;z-index:300;background:#fff;border:1px solid var(--line);border-radius:8px;padding:6px 10px;font-size:18px;cursor:pointer;color:var(--ink-2)}
.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(20,40,60,.4);z-index:250}
@media(max-width:900px){.hamburger{display:block}.top-nav{padding-left:48px}.top-nav .nav-links{display:none}.sidebar{position:fixed;top:0;left:-300px;height:100vh;z-index:260;transition:left .25s;box-shadow:var(--shadow-lg)}.sidebar.open{left:0}.sidebar-overlay.show{display:block}.qr-trigger{bottom:16px;right:16px;padding:11px 16px;font-size:13px}}
@media(max-width:768px){.section{padding:24px 14px}.section-title{font-size:17px}}