*,::after,::before{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;background:#F5F7FA;color:#333;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
a{text-decoration:none;color:inherit}
img{max-width:100%;vertical-align:middle}
/* ===== CSS Variables ===== */
:root{--primary:#2E7BFF;--primary-hover:#1a5fcc;--primary-active:#0d4cb3;--secondary:#B4D0FF;--bg:#F5F7FA;--card:#FFFFFF;--text:#333333;--sub:#999999;--border:#EEEEEE;--radius-sm:4px;--radius-md:6px;--radius-lg:16px;--card-pad:16px;--section-gap:24px;--grid-gap:16px;--transition:.15s;--thumb-blue:hsl(215,22%,96%);--thumb-green:hsl(175,22%,93%);--thumb-warm:hsl(35,22%,96%);--thumb-purple:hsl(260,22%,95%)}
/* ===== Common ===== */
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:var(--radius-sm)}
::placeholder{color:#bbb}
::selection{background:var(--primary);color:#fff}
/* ===== Visually Hidden ===== */
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
/* ===== Login Page ===== */
.login-box{max-width:400px;margin:60px auto;padding:0 20px}
.login-box h1{font-size:22px;font-weight:700;color:#1E293B;text-align:center;margin-bottom:32px}
.login-box .card{padding:28px 24px}
.fg{margin-bottom:16px}
.fg label{display:block;font-size:13px;font-weight:500;color:#666;margin-bottom:6px}
.fg input{width:100%;height:42px;padding:0 12px;border:1px solid #E5E8EB;border-radius:6px;font-size:14px;outline:none;transition:border-color .15s;box-sizing:border-box}
.fg input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(46,123,255,.1)}
.btn-pri{display:inline-flex;align-items:center;justify-content:center;height:42px;padding:0 24px;border:none;border-radius:6px;background:var(--primary);color:#fff;font-size:14px;font-weight:500;cursor:pointer;transition:background .15s;user-select:none}
.btn-pri:hover{background:var(--primary-hover)}
.btn-pri:active{background:var(--primary-active)}
.btn-pri:disabled{opacity:.5;cursor:not-allowed}
.btn-sec{display:inline-flex;align-items:center;gap:4px;padding:6px 16px;border:1px solid #E5E8EB;border-radius:6px;background:#fff;color:#666;font-size:12px;cursor:pointer;transition:all .15s}
.btn-sec:hover{border-color:var(--primary);color:var(--primary)}
.err{color:#F53F3F;font-size:13px;margin-top:12px;text-align:center;min-height:20px}
/* Login tabs */
.login-tabs{display:flex;gap:0;margin-bottom:20px;border-bottom:2px solid #EEE}
.lt-tab{flex:1;text-align:center;padding:10px 0;font-size:15px;font-weight:500;color:#999;cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;transition:color .15s,border-color .15s}
.lt-tab:hover{color:#333}
.lt-tab.active{color:var(--primary);border-bottom-color:var(--primary)}
/* Login OAuth */
.login-oauth{margin-top:16px}
.oauth-divider{display:flex;align-items:center;margin:16px 0}
.oauth-divider::before,.oauth-divider::after{content:'';flex:1;height:1px;background:#EEE}
.oauth-divider span{padding:0 12px;font-size:12px;color:#999}
.btn-wx{display:flex;align-items:center;justify-content:center;gap:6px;width:100%;height:42px;padding:0 24px;border:1px solid #07C160;border-radius:6px;background:#fff;color:#07C160;font-size:14px;font-weight:500;cursor:pointer;transition:background .15s}
.btn-wx:hover{background:#F0FFF4}
/* Topbar */
.topbar{height:34px;background:#333;display:flex;align-items:center;padding:0 24px}
.topbar-inner{max-width:960px;margin:0 auto;width:100%;display:flex;align-items:center}
.topbar a{color:#999;font-size:12px;transition:color .15s}
.topbar a:focus-visible{outline-color:#fff;color:#fff}
.topbar a:hover{color:#fff}
.topbar .sep{color:#555;margin:0 4px;font-size:10px}
.topbar-right{margin-left:auto;font-size:11px;color:#555}
/* PC Header */
.pc-header{height:62px;background:#fff;display:flex;align-items:center;padding:0 24px;border-bottom:1px solid #EEE;position:sticky;top:0;z-index:100}
.pc-header-inner{max-width:960px;margin:0 auto;width:100%;display:flex;align-items:center;gap:20px}
.logo{display:flex;align-items:center;gap:8px;flex-shrink:0}
.logo-icon{width:32px;height:32px;background:#2E7BFF;border-radius:6px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;font-weight:700;flex-shrink:0}
.logo-text{font-size:17px;font-weight:700;color:#333;white-space:nowrap}
.pc-nav{display:flex;flex:1}
.pc-nav a{padding:19px 14px;font-size:14px;color:#333;white-space:nowrap;display:flex;align-items:center;position:relative;cursor:pointer;transition:color .15s,background .15s}
.pc-nav a:hover{color:var(--primary);background:rgba(46,123,255,.06)}
.pc-nav a.active{color:var(--primary);font-weight:600}
.pc-nav a.active::after{content:'';position:absolute;bottom:0;left:10px;right:10px;height:3px;background:var(--primary)}
.pc-nav a:active{background:rgba(46,123,255,.12)}
.pc-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.search-box{display:flex;align-items:center;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);padding:0 2px 0 12px;height:32px;transition:border-color .2s,background .2s}
.search-box:focus-within{border-color:var(--primary);background:var(--card)}
.search-box input{border:none;background:transparent;outline:none;font-size:12px;color:var(--text);width:120px}
.search-box input::placeholder{color:#bbb}
.search-btn{width:28px;height:28px;border-radius:50%;background:var(--primary);border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;transition:background var(--transition)}
.search-btn:hover{background:var(--primary-hover)}
.search-btn:active{background:var(--primary-active)}
.search-btn.disabled,.search-btn:disabled{opacity:.5;cursor:not-allowed;background:#ccc}
.btn-login,.btn-reg{padding:6px 16px;border-radius:var(--radius-sm);font-size:12px;cursor:pointer;transition:all var(--transition);display:inline-flex;align-items:center;gap:4px;user-select:none}
.btn-login{background:var(--primary);color:var(--card);border:none}
.btn-login:hover{background:var(--primary-hover)}
.btn-login:active{background:var(--primary-active)}
.btn-login.disabled,.btn-login:disabled{opacity:.5;cursor:not-allowed;background:#ccc}
.btn-reg{background:transparent;border:1px solid var(--secondary);color:var(--primary)}
.btn-reg:hover{background:var(--primary);color:var(--card);border-color:var(--primary)}
.btn-reg:active{background:var(--primary-hover)}
.btn-reg.disabled,.btn-reg:disabled{opacity:.5;cursor:not-allowed;border-color:#ccc;color:#ccc}
/* Mobile */
.mobile-header,.mobile-bottom-nav,.mobile-hamburger-overlay{display:none}
/* ===== Page ===== */
.page-container{max-width:960px;margin:0 auto;padding:20px 24px 40px}
.section{margin-bottom:28px}
.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.section-header h2{font-size:18px;font-weight:600;color:var(--text);padding-left:12px;position:relative}
.section-header h2::before{content:'';position:absolute;left:0;top:3px;bottom:3px;width:3px;background:var(--primary);border-radius:1px}
.section-header .more{font-size:13px;color:var(--sub);cursor:pointer;transition:color var(--transition);user-select:none}
.section-header .more:hover{color:var(--primary)}
.section-header .more:active{color:var(--primary-active)}
.pills{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.pill{padding:6px 18px;border-radius:16px;background:#fff;border:1px solid #EEE;font-size:13px;color:#333;cursor:pointer;transition:all .15s;user-select:none}
.pill:hover{border-color:#2E7BFF;color:#2E7BFF}
.pill:active{background:rgba(46,123,255,.1)}
.pill.active{background:var(--primary);border-color:var(--primary);color:var(--card)}
.pill.disabled,.pill:disabled{opacity:.4;cursor:not-allowed;pointer-events:none}
.tabs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:20px;border-bottom:1px solid var(--border);padding-bottom:10px}
.tab{padding:6px 18px;font-size:13px;color:#333;cursor:pointer;border-radius:4px 4px 0 0;transition:color .15s;user-select:none}
.tab:hover{color:#2E7BFF}
.tab:active{background:rgba(46,123,255,.06)}
.tab.active{color:#2E7BFF;font-weight:600;background:rgba(46,123,255,.06)}
.tag{display:inline-block;padding:2px 8px;border-radius:2px;background:#F5F7FA;color:#333;font-size:11px;margin-right:4px;margin-top:4px;transition:background .15s}
.tag-click{cursor:pointer}
.tag-click:hover{background:#E8EFFE;color:var(--primary)}
.tag-click:active{background:#D0E0FF}
/* Cards */
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card{background:#fff;border:1px solid #EEE;border-radius:6px;overflow:hidden;cursor:pointer;transition:border-color .15s}
.card:hover{border-color:#B4D0FF}
.card:active{border-color:#2E7BFF}
.thumb-blue{background:var(--thumb-blue)!important}
.thumb-green{background:var(--thumb-green)!important}
.thumb-warm{background:var(--thumb-warm)!important}
.thumb-purple{background:var(--thumb-purple)!important}
.card-thumb{height:120px;background:#F5F7FA;display:flex;align-items:center;justify-content:center;color:#bbb;font-size:13px;border-bottom:1px solid #F5F7FA}
.card-thumb svg{flex:0 0 auto;max-width:100%}
.card-body{padding:14px 16px}
.card-body h4{font-size:15px;font-weight:600;color:#333;margin-bottom:4px}
.card-body p{font-size:12px;color:#999;line-height:1.5}
.card-body .meta{display:flex;align-items:center;justify-content:space-between;margin-top:10px;padding-top:10px;border-top:1px solid #EEE;font-size:11px;color:#999}
.course-scroll{display:flex;gap:14px;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:6px;scroll-snap-type:x mandatory}
.course-scroll::-webkit-scrollbar{height:0}
.course-scroll>*{scroll-snap-align:start;width:280px;flex:0 0 280px}
/* Banner */
.banner-wrap{margin-bottom:24px;display:flex;gap:16px}
.banner-main{flex:1;height:320px;border-radius:8px;position:relative;overflow:hidden}
.banner-slides{position:relative;width:100%;height:100%}
.banner-slide{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;text-align:center;opacity:0;transition:opacity .6s ease;pointer-events:none}
.banner-slide.active{opacity:1;pointer-events:auto}
.banner-main h1{font-size:28px;font-weight:700;margin-bottom:6px;max-width:90%}
.banner-main p{font-size:14px;opacity:.85;margin-bottom:16px;max-width:80%;line-height:1.5}
.banner-dots{position:absolute;bottom:12px;display:flex;gap:6px}
.banner-dots span{width:20px;height:3px;border-radius:2px;background:rgba(255,255,255,.4);cursor:pointer;transition:all .3s}
.banner-dots span.active{background:#fff;width:28px}
.banner-side{width:300px;display:flex;flex-direction:column;gap:10px}
.banner-side-item{flex:1;background:#B4D0FF;border-radius:6px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#333;padding:16px;font-size:13px;font-weight:600;text-align:center;cursor:pointer;transition:background .15s}
.banner-side-item:hover{background:#9bbef5}
.banner-side-item:active{background:#85afe8}
.banner-side-item span{font-size:11px;font-weight:400;color:#555;margin-top:4px}
/* Quick Grid */
.quick-grid{background:#fff;border:1px solid #EEE;border-radius:8px;padding:20px 24px;margin-bottom:24px}
.quick-grid .grid{display:grid;grid-template-columns:repeat(8,1fr);gap:8px}
.quick-item{display:flex;flex-direction:column;align-items:center;gap:6px;padding:12px 6px;border-radius:6px;cursor:pointer;transition:background .15s}
.quick-item:hover{background:#F5F7FA}
.quick-item:active{background:#E8EFFE}
.quick-icon{width:42px;height:42px;border-radius:8px;background:#2E7BFF;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.quick-icon svg{width:20px!important;height:20px!important;min-width:20px;max-width:20px;min-height:20px;max-height:20px;fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:0 0 20px!important}
/* Safari SVG flex-overflow nuke */
.news-thumb svg,.cc-thumb svg,.sr-thumb svg,.card-thumb svg,.zt-thumb svg,.di-icon svg,.em-icon svg,.sc-icon svg,.fi-icon svg{flex:0 0 auto!important;min-width:0!important;max-width:100%!important;min-height:0!important}
.quick-label{font-size:13px;color:#333;font-weight:500}
.quick-sub{font-size:11px;color:#999}
/* News */
.news-list{background:#fff;border:1px solid #EEE;border-radius:6px;overflow:hidden;margin-bottom:16px}
.news-item{display:flex;gap:16px;padding:16px 20px;border-bottom:1px solid #F5F7FA;cursor:pointer;transition:background .15s}
.news-item:last-child{border-bottom:none}
.news-item:hover{background:#FAFCFE}
.news-item:active{background:#F0F4FF}
.news-thumb{width:170px;min-height:110px;border-radius:4px;background:var(--thumb-blue);flex-shrink:0;display:flex;align-items:center;justify-content:center;color:#bbb;font-size:12px}
.news-thumb svg{flex:0 0 auto;max-width:100%}
.news-body{flex:1;min-width:0}
.news-body h4{font-size:16px;font-weight:600;color:var(--text);line-height:1.5;margin-bottom:6px;cursor:pointer;transition:color var(--transition)}
.news-body h4:hover{color:var(--primary)}
.news-body p{font-size:13px;color:var(--sub);line-height:1.6;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:#bbb;flex-wrap:wrap}
/* Filter */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;background:#fff;border:1px solid #EEE;border-radius:6px;padding:10px 16px;margin-bottom:16px}
.filter-bar .label{font-size:12px;color:#999;flex-shrink:0}
.filter-bar .options{display:flex;flex-wrap:wrap;gap:4px}
.filter-bar .opt{padding:2px 10px;border-radius:2px;font-size:12px;color:#333;cursor:pointer;background:#F5F7FA;transition:all .15s;user-select:none}
.filter-bar .opt.active{background:#2E7BFF;color:#fff}
.filter-bar .opt:hover{color:#2E7BFF;background:#E8EFFE}
.filter-bar .opt.active:hover{color:var(--card);background:var(--primary-hover)}
.filter-bar .opt.active:active{background:var(--primary-active)}
.result-count{margin-bottom:12px;font-size:13px;color:var(--sub)}
.result-count strong{color:var(--text);font-weight:600}
/* Exam */
.exam-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.exam-card{background:#fff;border:1px solid #EEE;border-radius:6px;padding:20px;cursor:pointer;transition:border-color .15s;display:flex;flex-direction:column}
.exam-card:hover{border-color:#B4D0FF}
.exam-card:active{border-color:#2E7BFF}
.exam-card .ec-head{display:flex;align-items:flex-start;justify-content:space-between;gap:8px;margin-bottom:8px}
.exam-card .ec-head h4{font-size:15px;font-weight:600;color:#333;line-height:1.4}
.exam-card .ec-tag{font-size:11px;padding:2px 8px;border-radius:2px;background:#F5F7FA;color:#333;white-space:nowrap;flex-shrink:0}
.exam-card .ec-tag.hot{background:#FFF4E5;color:#FF7D00}
.exam-card .ec-tag.free{background:#E8F8EE;color:#00B42A}
.exam-card p{font-size:12px;color:#999;margin-bottom:10px;line-height:1.5;flex:1}
.exam-card .ec-meta{display:flex;flex-wrap:wrap;gap:8px 14px;font-size:11px;color:#999;padding-top:10px;border-top:1px solid #EEE;margin-bottom:12px}
.exam-card .ec-meta span{display:flex;align-items:center;gap:4px}
.exam-card .ec-meta svg{width:13px;height:13px;fill:none;stroke:#999;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;display:block;flex-shrink:0}
.exam-card .ec-btn{display:inline-block;padding:6px 20px;border-radius:var(--radius-sm);background:var(--primary);color:var(--card);font-size:12px;cursor:pointer;transition:background var(--transition);border:none;user-select:none;align-self:flex-start;margin-top:auto}
.exam-card .ec-btn:hover{background:var(--primary-hover)}
.exam-card .ec-btn:active{background:var(--primary-active)}
.exam-card .ec-btn.disabled,.exam-card .ec-btn:disabled{opacity:.5;cursor:not-allowed;background:#ccc}
/* ===== Exam Modules ===== */
.exam-modules{display:flex;gap:12px;margin-bottom:16px}
.exam-module{flex:1;background:#fff;border:1px solid #EEE;border-radius:6px;padding:14px;text-align:center;cursor:pointer;transition:all .15s;user-select:none}
.exam-module:hover{border-color:#B4D0FF;background:#FAFCFE}
.exam-module.active{border-color:#2E7BFF;background:#F0F6FF}
.exam-module .em-icon{width:36px;height:36px;border-radius:8px;margin:0 auto 6px;display:flex;align-items:center;justify-content:center}
.exam-module .em-icon svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.exam-module .em-label{font-size:13px;font-weight:600;color:#333;display:block;margin-bottom:2px}
.exam-module .em-sub{font-size:10px;color:#999;display:block}
.exam-module .em-icon.blue{background:#E8F0FE;color:#2E7BFF}
.exam-module .em-icon.green{background:#E8F8EE;color:#00B42A}
.exam-module .em-icon.orange{background:#FFF4E5;color:#FF7D00}
.exam-module .em-icon.purple{background:#F3EFFC;color:#7C3AED}
.exam-module-content{display:none}
.exam-module-content.active{display:block}
/* ===== Practice Button (bordered) ===== */
.ec-btn.practice{background:transparent;border:1px solid var(--primary);color:var(--primary)}
.ec-btn.practice:hover{background:var(--primary);color:var(--card)}
.ec-btn.practice:active{background:var(--primary-hover);color:var(--card)}
/* ===== Browse Button (text link) ===== */
.ec-btn.browse{background:transparent;border:none;color:var(--primary);padding:4px 0;font-weight:500}
.ec-btn.browse:hover{text-decoration:underline}
.ec-btn.browse:active{color:var(--primary-hover)}
/* ===== Browse List (试题库) ===== */
.browse-list{background:#fff;border:1px solid #EEE;border-radius:6px;overflow:hidden}
.browse-item{display:flex;align-items:center;padding:12px 16px;border-bottom:1px solid #F5F7FA;gap:12px;cursor:pointer;transition:background .15s}
.browse-item:last-child{border-bottom:none}
.browse-item:hover{background:#FAFCFE}
.browse-item:active{background:#F0F4FF}
.browse-item .bi-tag{font-size:11px;padding:2px 8px;border-radius:2px;background:#F5F7FA;color:#666;flex-shrink:0}
.browse-item .bi-body{flex:1;min-width:0}
.browse-item .bi-body .bi-q{font-size:13px;color:#333;margin-bottom:2px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;line-height:1.5}
.browse-item .bi-body .bi-meta{font-size:11px;color:#999}
.browse-item .bi-body .bi-meta span+span::before{content:'·';margin:0 6px;color:#ddd}
.browse-item .bi-btn{font-size:11px;color:var(--primary);cursor:pointer;flex-shrink:0;padding:4px 0;background:transparent;border:none}
.browse-item .bi-btn:hover{text-decoration:underline}
/* ===== Profile Record List ===== */
.record-list{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden}
.record-item{display:flex;align-items:center;padding:12px 16px;border-bottom:1px solid var(--bg);gap:10px;transition:background .15s;cursor:pointer}
.record-item:last-child{border-bottom:none}
.record-item:hover{background:#FAFCFE}
.record-item:active{background:#F0F4FF}
.record-item .ri-date{font-size:11px;color:#999;width:80px;flex-shrink:0}
.record-item .ri-name{font-size:13px;color:var(--text);flex:1;min-width:0}
.record-item .ri-score{font-size:13px;font-weight:600;color:var(--text);width:50px;text-align:right;flex-shrink:0}
.record-item .ri-score.pass{color:#00B42A}
.record-item .ri-score.fail{color:#F53F3F}
.record-item .ri-btn{font-size:11px;color:var(--primary);cursor:pointer;flex-shrink:0;background:transparent;border:1px solid #B4D0FF;border-radius:3px;padding:3px 10px;transition:all .15s}
.record-item .ri-btn:hover{background:var(--primary);color:var(--card);border-color:var(--primary)}
.record-item .ri-btn:active{background:var(--primary-hover)}
/* ===== Favorites List ===== */
.fav-list{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden}
.fav-item{display:flex;align-items:center;padding:12px 16px;border-bottom:1px solid var(--bg);gap:10px;cursor:pointer;transition:background .15s}
.fav-item:last-child{border-bottom:none}
.fav-item:hover{background:#FAFCFE}
.fav-item:active{background:#F0F4FF}
.fav-item .fi-source{padding:1px 8px;border-radius:2px;font-size:10px;background:#F5F7FA;color:#666;flex-shrink:0}
.fav-item .fi-q{font-size:13px;color:var(--text);flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.fav-item .fi-date{font-size:10px;color:#bbb;flex-shrink:0}
.fav-item .fi-btn{font-size:11px;color:var(--primary);cursor:pointer;flex-shrink:0;background:transparent;border:1px solid #B4D0FF;border-radius:3px;padding:3px 10px;transition:all .15s}
.fav-item .fi-btn:hover{background:var(--primary);color:var(--card);border-color:var(--primary)}
.fav-item .fi-btn:active{background:var(--primary-hover)}
/* ===== Score Card (成绩单) ===== */
.score-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.score-card{background:var(--bg);border-radius:var(--radius-sm);padding:12px 14px;cursor:pointer;transition:background .15s}
.score-card:hover{background:#EBF0F8}
.score-card:active{background:#E0E6F0}
.score-card .sc-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.score-card .sc-head .sc-subject{font-size:13px;font-weight:600;color:var(--text)}
.score-card .sc-head .sc-score{font-size:16px;font-weight:700;color:var(--primary)}
.score-card .sc-head .sc-score.pass{color:#00B42A}
.score-card .sc-head .sc-score.fail{color:#F53F3F}
.score-card .sc-meta{display:flex;gap:14px;font-size:11px;color:var(--sub)}
.score-card .sc-meta span{display:flex;align-items:center;gap:3px}
/* ===== Course (existing) ===== */
.course-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.course-card{background:#fff;border:1px solid #EEE;border-radius:6px;overflow:hidden;cursor:pointer;transition:border-color .15s}
.course-card:hover{border-color:#B4D0FF}
.course-card:active{border-color:#2E7BFF}
.course-card .cc-thumb{height:110px;background:var(--thumb-blue);display:flex;align-items:center;justify-content:center;color:#bbb;font-size:12px;border-bottom:1px solid #F5F7FA}
.course-card .cc-thumb svg{flex:0 0 auto;max-width:100%}
.course-card .cc-body{padding:14px 16px}
.course-card .cc-body h4{font-size:15px;font-weight:600;color:#333;margin-bottom:4px}
.course-card .cc-body .cc-info{font-size:12px;color:#999;line-height:1.5;margin-bottom:8px}
.course-card .cc-body .cc-meta{display:flex;align-items:center;font-size:11px;color:#999;margin-bottom:8px;gap:6px}
.course-card .cc-meta .ico{display:flex;align-items:center;gap:4px}
.course-card .cc-meta svg{width:13px;height:13px;fill:none;stroke:#999;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;display:block;flex-shrink:0}
.course-card .cc-meta .cc-price{font-weight:600;color:#333;margin-right:auto}
.course-card .cc-meta .cc-price s{font-weight:400;color:#bbb;text-decoration:line-through;margin-left:4px}
.course-card .cc-meta .cc-actions{display:flex;align-items:center;gap:6px;flex-shrink:0}
.course-card .cc-progress{height:4px;background:#EEE;border-radius:2px;margin-bottom:6px;overflow:hidden}
.course-card .cc-progress .bar{height:100%;background:#2E7BFF;border-radius:2px;transition:width .3s}
.course-card .cc-status{padding:4px 14px;border-radius:3px;background:#2E7BFF;color:#fff;font-size:11px;display:inline-block;cursor:pointer;transition:background .15s;border:none}
.course-card .cc-status:hover{background:#1a5fcc}
.course-card .cc-status.learning{background:#FF7D00}
.course-card .cc-status.learning:hover{background:#e06e00}
.course-card .cc-status.learning:active{background:#c06000}
.course-card .cc-preview{padding:4px 10px;border-radius:3px;border:1px solid #B4D0FF;color:var(--primary);font-size:11px;cursor:pointer;transition:all .15s;background:transparent;display:inline-block;user-select:none}
.course-card .cc-preview:hover{background:var(--primary);color:var(--card);border-color:var(--primary)}
.course-card .cc-preview:active{background:var(--primary-hover)}
/* Doc */
.doc-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:20px;background:#fff;border:1px solid #EEE;border-radius:6px;padding:10px 16px}
.doc-bar .search-inline{display:flex;align-items:center;margin-left:auto;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;height:32px;transition:border-color .2s,background .2s}
.doc-bar .search-inline:focus-within{border-color:var(--primary);background:var(--card)}
.doc-bar .search-inline input{border:none;background:transparent;outline:none;font-size:12px;color:var(--text);width:140px;padding:0 8px}
.doc-bar .search-inline input::placeholder{color:#bbb}
.doc-bar .search-inline button{padding:6px 14px;background:var(--primary);color:var(--card);border:none;font-size:11px;cursor:pointer;transition:background var(--transition)}
.doc-bar .search-inline button:hover{background:var(--primary-hover)}
.doc-bar .search-inline button:active{background:var(--primary-active)}
.doc-list{background:#fff;border:1px solid #EEE;border-radius:6px;overflow:hidden}
.doc-item{display:flex;align-items:center;padding:14px 20px;border-bottom:1px solid #F5F7FA;gap:16px;cursor:pointer;transition:background .15s}
.doc-item:last-child{border-bottom:none}
.doc-item:hover{background:#FAFCFE}
.doc-item:active{background:#F0F4FF}
.doc-item .di-icon{width:36px;height:36px;border-radius:4px;background:#F5F7FA;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.doc-item .di-icon svg{width:18px;height:18px;fill:none;stroke:#999;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.doc-item .di-body{flex:1;min-width:0}
.doc-item .di-body h4{font-size:15px;font-weight:600;color:#333;margin-bottom:2px}
.doc-item .di-body .di-info{font-size:12px;color:#999;line-height:1.6}
.doc-item .di-body .di-info span+span::before{content:'·';margin:0 8px;color:#ddd}
.doc-item .di-body .di-tags{display:flex;gap:4px;margin-top:6px;flex-wrap:wrap}
.doc-item .di-body .di-tags .dt{padding:1px 8px;background:#F5F7FA;border-radius:2px;font-size:10px;color:#666}
.doc-item .di-action{flex-shrink:0}
.doc-item .di-action .btn-sm{padding:4px 14px;border-radius:3px;border:1px solid #B4D0FF;color:#2E7BFF;font-size:11px;cursor:pointer;transition:all .15s;background:#fff}
.doc-item .di-action .btn-sm:hover{background:var(--primary);color:var(--card);border-color:var(--primary)}
.doc-item .di-action .btn-sm:active{background:var(--primary-hover)}
.doc-item .di-action .btn-sm.disabled,.doc-item .di-action .btn-sm:disabled{opacity:.5;cursor:not-allowed;border-color:#ccc;color:#ccc}
/* ZT */
.zt-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.zt-card{background:#fff;border:1px solid #EEE;border-radius:6px;overflow:hidden;cursor:pointer;transition:border-color .15s;display:flex;flex-direction:column}
.zt-card:hover{border-color:#B4D0FF}
.zt-card:active{border-color:#2E7BFF}
.zt-grid .zt-card .zt-body{flex:1;display:flex;flex-direction:column}
.zt-grid .zt-card .zt-body p{flex:1}
.zt-card .zt-thumb{height:140px;background:var(--thumb-blue);display:flex;align-items:center;justify-content:center;color:#bbb;font-size:14px;border-bottom:1px solid #F5F7FA}
/* ===== Search Page ===== */
.search-page-bar{display:flex;align-items:center;background:#fff;border:1px solid #EEE;border-radius:var(--radius-lg);padding:0 2px 0 16px;height:44px;margin-bottom:16px;transition:border-color .2s,background .2s}
.search-page-bar:focus-within{border-color:var(--primary);background:var(--card)}
.search-page-bar input{border:none;background:transparent;outline:none;font-size:14px;color:var(--text);flex:1;min-width:0}
.search-page-bar input::placeholder{color:#bbb}
.search-page-bar .spb-btn{padding:8px 22px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius-lg);font-size:13px;cursor:pointer;flex-shrink:0;transition:background var(--transition)}
.search-page-bar .spb-btn:hover{background:var(--primary-hover)}
.search-page-bar .spb-btn:active{background:var(--primary-active)}
.search-list{background:#fff;border:1px solid #EEE;border-radius:6px;overflow:hidden;margin-bottom:16px}
.sr-item{display:flex;gap:16px;padding:16px 20px;border-bottom:1px solid #F5F7FA;cursor:pointer;transition:background .15s;background:#fff}
.sr-item:last-child{border-bottom:none}
.sr-item:hover{background:#FAFCFE}
.sr-item:active{background:#F0F4FF}
.sr-item .sr-thumb{width:120px;height:80px;border-radius:4px;background:var(--thumb-blue);flex-shrink:0;display:flex;align-items:center;justify-content:center}
.sr-item .sr-thumb svg{flex:0 0 auto;max-width:100%}
.sr-item .sr-thumb img{width:32px;height:32px}
.sr-item .sr-body{flex:1;min-width:0}
.sr-item .sr-body h4{font-size:15px;font-weight:600;color:#333;line-height:1.5;margin-bottom:4px}
.sr-item .sr-body h4 em{color:var(--primary);font-style:normal}
.sr-item .sr-body p{font-size:12px;color:#999;line-height:1.5;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.sr-item .sr-meta{display:flex;align-items:center;gap:10px;font-size:11px;color:#bbb;flex-wrap:wrap;padding-top:6px;border-top:1px solid #F5F7FA}
.sr-item .sr-type{padding:1px 8px;border-radius:2px;font-size:10px;color:#666;background:#F5F7FA}
.sr-type.type-course{background:#E8F8EE;color:#00B42A}
.sr-type.type-exam{background:#FFF4E5;color:#FF7D00}
.sr-type.type-doc{background:#E8EEFF;color:#2E7BFF}
.sr-type.type-news{background:#FFF0F0;color:#F53F3F}
.sr-type.type-zt{background:#F0E8FF;color:#722ED1}
.zt-card .zt-body{padding:16px}
.zt-card .zt-body h4{font-size:16px;font-weight:600;color:#333;margin-bottom:6px}
.zt-card .zt-body p{font-size:12px;color:#999;line-height:1.6;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.zt-card .zt-body .zt-meta{display:flex;align-items:center;gap:14px;font-size:11px;color:#999;padding-top:10px;border-top:1px solid #EEE;flex-wrap:wrap}
.zt-card .zt-body .zt-meta .zt-tag{padding:1px 8px;background:#F5F7FA;border-radius:2px;font-size:10px;color:#666}
.zt-card .zt-body .zt-meta svg{width:13px;height:13px;fill:none;stroke:#999;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;display:inline-block;vertical-align:-2px;margin-right:2px}
/* Cert */
.scroll-row{display:flex;gap:14px;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:6px;scroll-snap-type:x mandatory}
.scroll-row::-webkit-scrollbar{height:0}
.scroll-row>*{scroll-snap-align:start}
.cert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cert-card{background:#fff;border:1px solid #EEE;border-radius:6px;padding:20px;cursor:pointer;transition:border-color .15s}
.cert-card:hover{border-color:#B4D0FF}
.cert-card:active{border-color:#2E7BFF}
.cert-card .cc-icon{width:48px;height:48px;border-radius:8px;background:#2E7BFF;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-bottom:12px}
.cert-card .cc-icon svg{width:24px;height:24px;fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.cert-card h4{font-size:15px;font-weight:600;color:#333;margin-bottom:4px}
.cert-card p{font-size:12px;color:#999;line-height:1.5;margin-bottom:10px}
.cert-card .cc-btn{display:inline-block;padding:5px 16px;border-radius:3px;background:#2E7BFF;color:#fff;font-size:11px;cursor:pointer;transition:background .15s;border:none}
.cert-card .cc-btn:hover{background:var(--primary-hover)}
.cert-card .cc-btn:active{background:var(--primary-active)}
.cert-card .cc-btn.disabled,.cert-card .cc-btn:disabled{opacity:.5;cursor:not-allowed;background:#ccc}
.my-cert-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.my-cert{display:flex;align-items:center;background:#fff;border:1px solid #EEE;border-radius:6px;padding:16px 20px;gap:14px;cursor:pointer;transition:border-color .15s}
.my-cert:hover{border-color:#B4D0FF}
.my-cert:active{border-color:#2E7BFF}
.my-cert .mc-icon{width:40px;height:40px;border-radius:6px;background:#F5F7FA;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.my-cert .mc-icon svg{width:20px;height:20px;fill:none;stroke:#999;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.my-cert .mc-body{flex:1;min-width:0}
.my-cert .mc-body h4{font-size:14px;font-weight:600;color:#333;margin-bottom:2px}
.my-cert .mc-body .mc-info{font-size:11px;color:#999}
.my-cert .mc-status{padding:3px 12px;border-radius:3px;font-size:11px;flex-shrink:0;user-select:none}
.my-cert .mc-status.done{background:#E8F8EE;color:#00B42A}
.my-cert .mc-status.ing{background:#FFF4E5;color:#FF7D00}
.my-cert .mc-status.fail{background:#FFF0F0;color:#F53F3F}
.my-cert .mc-dl{padding:5px 14px;border-radius:3px;border:1px solid #B4D0FF;color:#2E7BFF;font-size:11px;cursor:pointer;flex-shrink:0;background:#fff;transition:all .15s}
.my-cert .mc-dl:hover{background:var(--primary);color:var(--card);border-color:var(--primary)}
.my-cert .mc-dl:active{background:var(--primary-hover)}
/* Pagination */
.pagination{display:flex;justify-content:center;gap:6px;margin-top:16px;flex-wrap:wrap}
.pagination a{display:flex;align-items:center;justify-content:center;min-width:34px;height:34px;border:1px solid #EEE;border-radius:4px;font-size:13px;color:#333;background:#fff;cursor:pointer;transition:all .15s;user-select:none}
.pagination a:hover{border-color:#2E7BFF;color:#2E7BFF}
.pagination a:active{background:rgba(46,123,255,.1)}
.pagination a.active{background:var(--primary);border-color:var(--primary);color:var(--card)}
.pagination a.disabled,.pagination a:disabled{opacity:.4;cursor:not-allowed;pointer-events:none}
/* Profile */
.profile-card{background:#fff;border:1px solid #EEE;border-radius:6px;display:flex;align-items:center;gap:20px;padding:24px 28px;margin-bottom:20px}
.profile-avatar{width:72px;height:72px;border-radius:50%;background:#2E7BFF;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.profile-avatar svg{width:32px;height:32px;fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.profile-info h3{font-size:20px;font-weight:600;color:#333;margin-bottom:4px}
.profile-info p{font-size:13px;color:#999;display:flex;flex-wrap:wrap;gap:4px 20px}
.profile-stats{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-bottom:20px}
.profile-stat{background:#fff;border:1px solid #EEE;border-radius:6px;padding:16px;text-align:center;cursor:pointer;transition:border-color .15s}
.profile-stat:hover{border-color:#B4D0FF}
.profile-stat .ps-num{font-size:24px;font-weight:700;color:#2E7BFF;line-height:1.2}
.profile-stat .ps-label{font-size:12px;color:#999;margin-top:4px}
/* ===== Subject Stats (统合学习概况) ===== */
.subject-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.subject-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-md);padding:14px 16px;cursor:pointer;transition:border-color var(--transition)}
.subject-card:hover{border-color:var(--secondary)}
.subject-card:active{border-color:var(--primary)}
.subject-card .sc-head{display:flex;align-items:center;gap:8px;margin-bottom:6px}
.subject-card .sc-head .sc-icon{width:28px;height:28px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.subject-card .sc-head .sc-icon.thumb-blue{background:var(--thumb-blue)}
.subject-card .sc-head .sc-icon.thumb-green{background:var(--thumb-green)}
.subject-card .sc-head .sc-icon.thumb-warm{background:var(--thumb-warm)}
.subject-card .sc-head .sc-icon.thumb-purple{background:var(--thumb-purple)}
.subject-card .sc-head .sc-icon svg{width:14px;height:14px;fill:none;stroke:var(--card);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.subject-card .sc-head h4{font-size:14px;font-weight:600;color:var(--text);margin:0;flex:1;min-width:0}
.subject-card .sc-pct{font-size:13px;font-weight:600;color:var(--primary);flex-shrink:0}
.subject-card .sc-bar-wrap{height:4px;background:var(--border);border-radius:2px;margin-bottom:8px;overflow:hidden}
.subject-card .sc-bar-wrap .sc-bar{height:100%}
.subject-card .sc-bar-wrap .sc-bar .bar{height:100%;background:var(--primary);border-radius:2px;transition:width .5s}
.subject-card .sc-meta{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--sub);flex-wrap:wrap}
.subject-card .sc-meta span{display:inline-flex;align-items:center;gap:2px}
.subject-card .sc-meta strong{font-weight:600;color:var(--text)}
.subject-card .sc-meta .sc-green{color:#00B42A}
.subject-card .sc-meta .sc-red{color:#F53F3F}
.subject-card .sc-meta .sc-dot{color:#ddd;font-size:10px;user-select:none}
.subject-card .sc-meta-exam{margin-top:4px;padding-top:6px;border-top:1px solid #f0f0f0;font-size:10px;color:#aaa}
.subject-card .sc-meta-exam strong{font-weight:600;color:#777}
.subject-card .sc-meta-exam .sc-dot{color:#e0e0e0}
.func-groups{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.func-group{background:#fff;border:1px solid #EEE;border-radius:6px;overflow:hidden}
.func-group h4{padding:12px 16px;font-size:14px;font-weight:600;color:#333;background:#FAFAFA;border-bottom:1px solid #EEE}
.func-item{display:flex;align-items:center;padding:12px 16px;border-bottom:1px solid #F5F7FA;gap:10px;cursor:pointer;transition:background .15s}
.func-item:last-child{border-bottom:none}
.func-item:hover{background:#FAFCFE}
.func-item:active{background:#F0F4FF}
.func-item .fi-icon{width:32px;height:32px;border-radius:6px;background:#F5F7FA;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.func-item .fi-icon svg{width:16px;height:16px;fill:none;stroke:#999;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.func-item .fi-body{flex:1}
.func-item .fi-body span{font-size:14px;color:#333}
.func-item .fi-body .fi-sub{font-size:11px;color:#999;margin-top:1px}
.func-item .fi-arrow{color:#ccc;font-size:16px;flex-shrink:0}
/* Empty & Loading */
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px 20px;color:#999}
.empty-state svg{width:48px;height:48px;fill:none;stroke:#ccc;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;margin-bottom:12px}
.empty-state p{font-size:14px;color:#bbb}
.empty-state .empty-sub{font-size:12px;color:#ddd;margin-top:4px}
.loading-state{display:flex;align-items:center;justify-content:center;padding:32px;gap:8px;color:#999;font-size:13px}
.loading-spinner{width:20px;height:20px;border:2px solid #EEE;border-top-color:#2E7BFF;border-radius:50%;animation:spin .6s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
/* Footer */
.footer{background:#333;margin-top:20px}
.footer-inner{max-width:1400px;margin:0 auto;padding:32px 24px 24px}
.footer-row{display:flex;gap:40px;padding-bottom:20px;border-bottom:1px solid rgba(255,255,255,.1);flex-wrap:wrap}
.footer-col{min-width:120px}
.footer-col h5{color:#fff;font-size:13px;font-weight:600;margin-bottom:10px}
.footer-col a{display:block;color:#999;font-size:12px;padding:3px 0;cursor:pointer;transition:color .15s}
.footer-col a:hover{color:#fff}
.footer-col.qr{text-align:center;margin-left:auto}
.footer-col.qr .qr-box{width:72px;height:72px;background:#B4D0FF;border-radius:4px;margin:0 auto 6px;display:flex;align-items:center;justify-content:center;color:#333;font-size:10px}
.footer-col.qr span{color:#999;font-size:10px}
.footer-bottom{text-align:center;padding-top:14px;color:#999;font-size:11px;line-height:1.8}
.footer-bottom a{color:#999;margin:0 4px;cursor:pointer;transition:color .15s}
.footer-bottom a:hover{color:#fff}
.footer-bottom .sep-m{display:none}
/* Page switch */
.page-content{display:none}
.page-content.active{display:block;animation:fadeIn .2s ease}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
/* Hamburger */
.mobile-hamburger-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:#fff;z-index:300;padding:16px 20px;overflow-y:auto}
.mh-close{text-align:right;font-size:24px;color:var(--sub);cursor:pointer;margin-bottom:16px;padding:4px;user-select:none;transition:color var(--transition)}
.mh-close:hover{color:var(--text)}
.mh-menu a{display:block;padding:14px 0;font-size:15px;color:#333;border-bottom:1px solid #F5F7FA;cursor:pointer;transition:color .15s}
.mh-menu a:hover{color:var(--primary)}
.mh-menu a:active{color:var(--primary);background:rgba(46,123,255,.04)}
.mh-menu a.active{color:var(--primary);font-weight:600}
.mobile-hamburger-overlay.show{display:block}
/* Common */
.ico-svg{display:inline-flex;align-items:center;vertical-align:-2px}
.ico-svg svg{width:14px;height:14px;fill:none;stroke:#999;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;display:block}
.mobile-bottom-nav .nav-icon{width:20px;height:20px;display:flex;align-items:center;justify-content:center}
.mobile-bottom-nav .nav-icon svg{width:20px;height:20px;fill:none;stroke:#999;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:stroke .15s;flex:0 0 auto;min-width:20px;max-width:20px;min-height:20px;max-height:20px}
.mobile-bottom-nav a.active .nav-icon svg,.mobile-bottom-nav button.active .nav-icon svg{stroke:#2E7BFF}
/* ===== Tablet (768-1024px) ===== */
@media(min-width:769px)and(max-width:1024px){
.pc-nav a{padding:19px 10px;font-size:13px}
.search-box input{width:90px}
.banner-side{width:220px}
.banner-main{height:260px}
.banner-main h1{font-size:24px}
.card-grid,.course-grid{grid-template-columns:repeat(3,1fr)}
.zt-grid{grid-template-columns:repeat(2,1fr)}
.exam-grid{grid-template-columns:repeat(2,1fr)}
.cert-grid{grid-template-columns:repeat(3,1fr);gap:16px}
.quick-grid .grid{grid-template-columns:repeat(4,1fr)}
.profile-stats{grid-template-columns:repeat(3,1fr)}
.func-groups{grid-template-columns:1fr}
.wrong-stats{grid-template-columns:repeat(2,1fr)}
.subject-stats{grid-template-columns:repeat(2,1fr)}
.progress-item .pi-name{width:100px}
}
/* ===== Mobile (<769px) ===== */
.section-body{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-md)}
@media(max-width:768px){
.topbar{display:none}
.pc-header{display:none}
.mobile-header{display:flex;height:50px;background:#fff;align-items:center;justify-content:space-between;padding:0 12px;border-bottom:1px solid #EEE;position:sticky;top:0;z-index:100;gap:8px}
.mh-logo{display:flex;align-items:center;gap:6px;margin-right:auto}
.mh-logo .logo-icon{width:28px;height:28px;font-size:13px}.mh-logo .logo-text{font-size:15px}
.mh-search{width:44px;height:44px;border-radius:50%;background:var(--bg);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;flex-shrink:0;cursor:pointer;transition:background var(--transition)}
.mh-search:hover{background:#E8EFFE}
.mh-search:active{background:#D0E0FF}
.mh-login{padding:8px 16px;border-radius:var(--radius-sm);background:var(--primary);color:var(--card);font-size:13px;cursor:pointer;flex-shrink:0;transition:background var(--transition);user-select:none}
.mh-login:hover{background:var(--primary-hover)}
.mh-login:active{background:var(--primary-active)}
.mh-hamburger{width:44px;height:44px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;flex-shrink:0}
.mh-hamburger span{display:block;height:2.5px;background:#333;border-radius:2px;transition:all .2s}
.mobile-bottom-nav{display:flex;position:fixed;bottom:0;left:0;right:0;height:64px;background:#fff;border-top:1px solid #EEE;z-index:200}
.mobile-bottom-nav a,.mobile-bottom-nav button{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;color:#999;font-size:11px;border:none;background:none;cursor:pointer;padding:8px 4px;min-height:44px;transition:color .15s}
.mobile-bottom-nav a.active,.mobile-bottom-nav button.active{color:#2E7BFF}
body{padding-bottom:64px}
.page-container{padding:12px 12px 20px}
.banner-wrap{flex-direction:column;gap:8px}
.banner-main{height:150px;padding:20px}
.banner-main h1{font-size:18px}
.banner-main p{font-size:12px;margin-bottom:12px}
.banner-side{width:100%;flex-direction:row;gap:8px}
.banner-side-item{padding:10px;font-size:12px}
.quick-grid{padding:12px;margin-bottom:16px}
.quick-grid .grid{grid-template-columns:repeat(4,1fr);gap:4px}
.quick-item{padding:10px 4px;gap:4px}
.quick-icon{width:36px;height:36px}
.quick-icon svg{width:17px!important;height:17px!important;min-width:17px;max-width:17px;min-height:17px;max-height:17px;flex:0 0 17px!important}
.quick-label{font-size:11px}
.quick-sub{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;font-size:10px}
.card-grid{grid-template-columns:repeat(2,1fr);gap:10px}
.card-thumb{height:80px}.card-body{padding:10px 12px}.card-body h4{font-size:13px}
.section,.scroll-section{margin-bottom:20px}
.section-header{margin-bottom:10px}
.section-header h2{font-size:15px}
.news-item{flex-direction:column;gap:10px;padding:12px}
.news-thumb{width:100%;min-height:80px}
.news-body h4{font-size:13px}.news-body p{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;font-size:12px}
.pills{gap:6px;margin-bottom:14px}.pill{padding:4px 14px;font-size:12px}
.exam-grid,.course-grid,.zt-grid{grid-template-columns:1fr;gap:10px}
.exam-card{padding:14px}
.course-card .cc-thumb{height:80px}
.course-card .cc-body{padding:10px 12px}
.course-card .cc-body h4{font-size:13px}
.course-scroll{gap:10px}
.doc-bar .search-inline{margin-left:0;width:100%;margin-top:6px}
.doc-bar .search-inline input{width:100%}
.doc-item{padding:12px;gap:10px;flex-wrap:wrap}
.doc-item .di-body h4{font-size:13px}
.doc-item .di-body .di-info span{display:inline}
.doc-item .di-info span+span::before{content:'·';margin:0 4px;color:#ddd}
.zt-card .zt-thumb{height:100px}
.zt-card .zt-body{padding:12px}.zt-card .zt-body h4{font-size:14px}
.cert-grid{grid-template-columns:repeat(2,1fr);gap:12px}
.cert-card{padding:14px}
.my-cert-grid{grid-template-columns:1fr;gap:10px}
.my-cert{padding:12px 14px;gap:10px;flex-wrap:wrap}
.profile-card{flex-direction:column;text-align:center;padding:20px}
.profile-info p{justify-content:center}
.profile-stats{grid-template-columns:repeat(2,1fr);gap:8px}
.profile-stat{padding:12px 8px}
.profile-stat .ps-num{font-size:20px}
.func-groups{grid-template-columns:1fr}
.tabs{gap:4px;padding-bottom:8px}.tab{padding:4px 12px;font-size:12px}
.filter-bar{padding:8px 12px;gap:6px}
.result-count{font-size:12px}
.pagination a{min-width:30px;height:30px;font-size:12px}
.footer-inner{padding:20px 12px 16px}
.footer-row{gap:16px}
.footer-col{width:calc(50% - 8px);min-width:0}
.footer-col.qr{margin-left:0;width:100%;text-align:center;padding-top:6px}
.footer-bottom{font-size:10px}.footer-bottom .sep-m{display:inline}
.empty-state{padding:32px 16px}
.search-page-bar{height:38px;margin-bottom:12px}.search-page-bar input{font-size:13px}.search-page-bar .spb-btn{padding:6px 16px;font-size:12px}
.search-list{margin-bottom:12px}
.sr-item{padding:12px;gap:12px}
.sr-item .sr-thumb{width:80px;height:60px}
.sr-item .sr-thumb svg{width:24px;height:24px}
.sr-item .sr-body h4{font-size:13px}
.sr-item .sr-body p{font-size:11px;-webkit-line-clamp:1}
.sr-item .sr-meta{font-size:10px;gap:6px}
.wrong-stats{grid-template-columns:repeat(2,1fr);gap:8px}
.progress-item .pi-name{width:80px;font-size:12px}
.subject-stats{grid-template-columns:1fr;gap:10px}
.section-body{padding:12px}
.exam-modules{flex-wrap:wrap;gap:8px}
.exam-module{min-width:calc(50% - 4px);padding:10px}
.browse-item{flex-wrap:wrap}
.record-item{flex-wrap:wrap}
.record-item .ri-date{width:auto}
.fav-item{flex-wrap:wrap}
.score-grid{grid-template-columns:1fr}
.cd-header{flex-direction:column;gap:12px}.cd-header .cd-thumb{width:100%;height:auto;min-height:100px}
.report-grid{grid-template-columns:repeat(2,1fr)}
.badge-grid{grid-template-columns:repeat(2,1fr)}
.article-wrapper{flex-direction:column}.article-toc{display:none}
/* profile sub-pages */
.sub-header{flex-direction:column;align-items:flex-start;gap:8px}
.sub-header h2{font-size:18px}
.form-group input,.form-group select,.form-group textarea{font-size:16px}
.form-actions{flex-direction:column}
.form-actions button{width:100%}
.benefit-grid{grid-template-columns:repeat(2,1fr)!important}
.plan-grid{grid-template-columns:1fr!important}
/* errors / mastery / prediction */
.tier-gate{flex-direction:column;gap:8px;text-align:center}
.tier-gate button{width:100%}
.score-tier-block{flex-direction:column;gap:8px;text-align:center}
.prediction-empty{text-align:center;padding:20px}
.mastery-grid{grid-template-columns:repeat(2,1fr)}
/* competition */
.comp-grid{grid-template-columns:1fr}
/* rec-item cards */
.rec-item{flex-direction:column}
.rec-item .ri-left{width:100%}
}
@media(max-width:480px){
.card-grid{grid-template-columns:1fr}
}
/* ===== Sub-page: Exam Taking / Practice ===== */
.exam-header{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid #EEE;border-radius:6px;padding:12px 16px;margin-bottom:16px;flex-wrap:wrap}
.exam-header .eh-title{font-size:15px;font-weight:600;color:#333;flex:1;min-width:0}
.exam-header .eh-timer{font-size:14px;font-weight:600;color:#F53F3F;display:flex;align-items:center;gap:4px;flex-shrink:0}
.exam-header .eh-progress{font-size:12px;color:#999;flex-shrink:0}
.exam-body{display:flex;gap:16px}
.exam-main{flex:1;min-width:0}
.exam-side{width:200px;flex-shrink:0}
.exam-q-panel{background:#fff;border:1px solid #EEE;border-radius:6px;padding:16px;margin-bottom:12px}
.exam-q-panel .eq-header{font-size:12px;color:#999;margin-bottom:8px;display:flex;justify-content:space-between}
.exam-q-panel .eq-nums{display:flex;flex-wrap:wrap;gap:4px}
.exam-q-panel .eq-nums span{width:44px;height:44px;display:flex;align-items:center;justify-content:center;border:1px solid #EEE;border-radius:4px;font-size:13px;color:#333;cursor:pointer;transition:all .15s}
.exam-q-panel .eq-nums span:hover{border-color:#B4D0FF;color:#2E7BFF}
.exam-q-panel .eq-nums span.active{background:#2E7BFF;color:#fff;border-color:#2E7BFF}
.exam-q-panel .eq-nums span.answered{border-color:#2E7BFF;background:#F0F6FF}
.exam-q-panel .eq-nums span.answered.active{background:#2E7BFF;color:#fff}
.exam-q-panel .eq-nums span.marked{border-color:#FF7D00;background:#FFF4E5}
.exam-q-area{background:#fff;border:1px solid #EEE;border-radius:6px;padding:20px}
.exam-q-area .eq-tags{display:flex;gap:6px;margin-bottom:8px;flex-wrap:wrap}
.exam-q-area .eq-tags .eqt{font-size:11px;padding:2px 8px;border-radius:2px;background:#F5F7FA;color:#666}
.exam-q-area .eq-question{font-size:15px;line-height:1.7;color:#333;margin-bottom:16px}
.exam-q-area .eq-options{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.exam-q-area .eq-option{display:flex;align-items:flex-start;gap:8px;padding:10px 12px;border:1px solid #EEE;border-radius:4px;cursor:pointer;transition:all .15s;font-size:14px;line-height:1.5}
.exam-q-area .eq-option:hover{border-color:#B4D0FF;background:#FAFCFE}
.exam-q-area .eq-option:active{background:#F0F4FF}
.exam-q-area .eq-option.selected{border-color:#2E7BFF;background:#F0F6FF}
.exam-q-area .eq-option.correct{border-color:#00B42A;background:#E8F8EE}
.exam-q-area .eq-option.wrong{border-color:#F53F3F;background:#FFF0F0}
.exam-q-area .eq-option .eo-label{width:22px;height:22px;border-radius:50%;border:1px solid #CCC;display:flex;align-items:center;justify-content:center;font-size:12px;color:#666;flex-shrink:0;margin-top:1px}
.exam-q-area .eq-option.selected .eo-label{background:#2E7BFF;color:#fff;border-color:#2E7BFF}
.exam-q-area .eq-option.correct .eo-label{background:#00B42A;color:#fff;border-color:#00B42A}
.exam-q-area .eq-option.wrong .eo-label{background:#F53F3F;color:#fff;border-color:#F53F3F}
.eq-option.disabled{cursor:default;opacity:.7;pointer-events:none}
.eq-feedback{margin-top:14px;padding:14px;border-radius:6px;border:1px solid #E8EFFE;display:none}
.eqf-header{font-size:15px;font-weight:600;margin-bottom:6px;display:flex;align-items:center;gap:6px}
.eqf-header.correct{color:#00B42A}
.eqf-header.wrong{color:#F53F3F}
.eqf-header .eqf-next{float:right;padding:2px 10px;font-size:11px;color:#2E7BFF;cursor:pointer;border-radius:3px;font-weight:400;transition:all .15s;margin-right:-6px}
.eqf-header .eqf-next:hover{background:rgba(46,123,255,.1)}
.eqf-body{font-size:13px;line-height:1.6;color:#555}
.exam-q-nav{display:flex;align-items:center;gap:8px;margin-top:16px;padding-top:16px;border-top:1px solid #EEE}
.exam-q-nav .eqn-btn{padding:6px 20px;border-radius:4px;font-size:12px;cursor:pointer;transition:all .15s;user-select:none;display:inline-flex;align-items:center;gap:4px}
.eqn-btn.prev,.eqn-btn.next{background:#fff;border:1px solid #EEE;color:#333}
.eqn-btn.prev:hover,.eqn-btn.next:hover{border-color:#2E7BFF;color:#2E7BFF}
.eqn-btn.prev:active,.eqn-btn.next:active{background:rgba(46,123,255,.1)}
.eqn-btn.mark{border:1px solid #FF7D00;color:#FF7D00;background:#FFF}
.eqn-btn.mark:hover{background:#FF7D00;color:#fff}
.eqn-btn.mark.active{background:#FF7D00;color:#fff}
.eqn-btn.submit{background:#2E7BFF;color:#fff;border:none;margin-left:auto}
.eqn-btn.submit:hover{background:var(--primary-hover)}
.eqn-btn.submit:active{background:var(--primary-active)}
.exam-q-nav .eqn-count{font-size:12px;color:#999;margin-left:auto}

/* ── Mobile: Exam page ── (MUST be after desktop rules) */
@media(max-width:768px){
  .exam-body{flex-direction:column}
  .exam-side{width:100%;order:-1;margin-bottom:12px}
  .exam-q-area{padding:12px}
  .exam-q-area .eq-option{font-size:13px;padding:8px 10px}
  .exam-q-nav{flex-wrap:wrap;gap:4px}
  .exam-q-nav .eqn-btn{padding:4px 12px;font-size:11px}
  .rs-grid{grid-template-columns:repeat(2,1fr)}
  .rh-score{font-size:36px}
  .result-hero{padding:24px 16px}
  .result-hero .rh-stats{gap:12px}
  .analysis-item{padding:12px}
}

/* ===== Result / Score ===== */
.result-hero{text-align:center;padding:32px 20px;background:#fff;border:1px solid #EEE;border-radius:8px;margin-bottom:16px}
.result-hero .rh-score{font-size:48px;font-weight:700;line-height:1.1}
.result-hero .rh-score.pass{color:#00B42A}
.result-hero .rh-score.fail{color:#F53F3F}
.result-hero .rh-label{font-size:14px;color:#999;margin-top:4px}
.result-hero .rh-label.pass{color:#00B42A}
.result-hero .rh-label.fail{color:#F53F3F}
.result-hero .rh-stats{display:flex;justify-content:center;gap:24px;margin-top:16px;font-size:12px;color:#999;flex-wrap:wrap}
.result-hero .rh-stats span{display:flex;align-items:center;gap:4px}
.result-hero .rh-actions{margin-top:16px;display:flex;justify-content:center;gap:10px;flex-wrap:wrap}
.result-hero .rh-btn{padding:8px 22px;border-radius:4px;font-size:13px;cursor:pointer;transition:all .15s;user-select:none;display:inline-flex;align-items:center;gap:4px}
.rh-btn.primary{background:#2E7BFF;color:#fff;border:none}
.rh-btn.primary:hover{background:var(--primary-hover)}
.rh-btn.primary:active{background:var(--primary-active)}
.rh-btn.secondary{background:#fff;border:1px solid #EEE;color:#333}
.rh-btn.secondary:hover{border-color:#2E7BFF;color:#2E7BFF}
.rh-btn.secondary:active{background:rgba(46,123,255,.1)}
.rh-btn.outline{border:1px solid #2E7BFF;color:#2E7BFF;background:#fff}
.rh-btn.outline:hover{background:#2E7BFF;color:#fff}
.rh-btn.outline:active{background:var(--primary-hover);color:#fff}
.result-section{background:#fff;border:1px solid #EEE;border-radius:6px;padding:16px;margin-bottom:16px}
.result-section h4{font-size:14px;font-weight:600;color:#333;margin-bottom:10px;padding-bottom:8px;border-bottom:1px solid #EEE}
.rs-bar{height:6px;background:#EEE;border-radius:3px;overflow:hidden;margin-bottom:12px}
.rs-bar .bar{height:100%;border-radius:3px;transition:width .5s}
.rs-bar .bar.green{background:#00B42A}
.rs-bar .bar.orange{background:#FF7D00}
.rs-bar .bar.red{background:#F53F3F}
.rs-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;text-align:center}
.rs-item{padding:10px;background:#F5F7FA;border-radius:4px}
.rs-item .rs-num{font-size:18px;font-weight:700;color:#333}
.rs-item .rs-label{font-size:11px;color:#999;margin-top:2px}
.rs-item .rs-num.green{color:#00B42A}
.rs-item .rs-num.red{color:#F53F3F}
/* ===== Analysis ===== */
.analysis-list{background:#fff;border:1px solid #EEE;border-radius:6px;overflow:hidden}
.analysis-item{padding:16px;border-bottom:1px solid #F5F7FA}
.analysis-item:last-child{border-bottom:none}
.analysis-item .ai-q{font-size:14px;line-height:1.6;color:#333;margin-bottom:8px}
.analysis-item .ai-meta{font-size:11px;color:#999;margin-bottom:8px;display:flex;gap:8px;flex-wrap:wrap}
.analysis-item .ai-your{font-size:12px;padding:6px 10px;border-radius:3px;margin-bottom:6px;display:flex;align-items:center;gap:6px}
.analysis-item .ai-your.correct{background:#E8F8EE;color:#00B42A}
.analysis-item .ai-your.wrong{background:#FFF0F0;color:#F53F3F}
.analysis-item .ai-correct{font-size:12px;color:#00B42A;margin-bottom:8px}
.analysis-item .ai-explain{font-size:12px;color:#666;line-height:1.6;padding:10px;background:#F5F7FA;border-radius:4px;margin-top:6px}
.analysis-item .ai-actions{display:flex;gap:8px;margin-top:8px}
.analysis-item .ai-actions .ai-btn{font-size:11px;padding:3px 12px;border-radius:3px;cursor:pointer;transition:all .15s;background:#fff;border:1px solid #EEE;color:#666}
.analysis-item .ai-actions .ai-btn:hover{border-color:#B4D0FF;color:#2E7BFF}
.analysis-item .ai-actions .ai-btn.faved{color:#FF7D00;border-color:#FF7D00}
/* ===== Course Detail ===== */
.cd-header{background:#fff;border:1px solid #EEE;border-radius:6px;padding:20px;margin-bottom:16px;display:flex;gap:20px}
.cd-header .cd-thumb{width:200px;height:140px;border-radius:6px;background:var(--thumb-blue);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.cd-header .cd-info{flex:1;min-width:0}
.cd-header .cd-info h2{font-size:20px;font-weight:700;color:#333;margin-bottom:4px}
.cd-header .cd-info .cd-teacher{font-size:13px;color:#999;margin-bottom:6px}
.cd-header .cd-info .cd-tags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:8px}
.cd-header .cd-info .cd-price{font-size:22px;font-weight:700;color:#F53F3F;margin-bottom:8px}
.cd-header .cd-info .cd-price s{font-size:14px;font-weight:400;color:#bbb;margin-left:6px}
.cd-header .cd-info .cd-actions{display:flex;gap:8px}
.cd-section{background:#fff;border:1px solid #EEE;border-radius:6px;padding:16px;margin-bottom:16px}
.cd-section h4{font-size:14px;font-weight:600;color:#333;margin-bottom:10px;padding-bottom:8px;border-bottom:1px solid #EEE}
.cd-desc{font-size:13px;color:#666;line-height:1.8}
.chapter-list{}
.chapter-item{display:flex;align-items:center;padding:10px 0;gap:10px;cursor:pointer;user-select:none}
.chapter-item .ch-index{width:26px;height:26px;border-radius:50%;border:1px solid #DDD;display:flex;align-items:center;justify-content:center;font-size:11px;color:#999;flex-shrink:0}
.chapter-item .ch-index.done{background:#E8F8EE;color:#00B42A;border-color:#00B42A}
.chapter-item .ch-index.locked{background:#F5F7FA;color:#ccc;border-color:#EEE}
.chapter-item .ch-body{flex:1;min-width:0}
.chapter-item .ch-body .ch-name{font-size:13px;color:#333;margin-bottom:2px}
.chapter-item .ch-body .ch-name.locked{color:#bbb}
.chapter-item .ch-body .ch-meta{font-size:11px;color:#999}
.chapter-item .ch-status{font-size:11px;padding:2px 10px;border-radius:2px;flex-shrink:0}
.chapter-item .ch-status.free{background:#E8F8EE;color:#00B42A}
.chapter-item .ch-status.locked{background:#F5F7FA;color:#bbb}
.chapter-item .ch-status.done{background:#E8EFFE;color:#2E7BFF}
.cd-ch-btn{padding:4px 12px;border-radius:3px;font-size:11px;cursor:pointer;border:none;transition:all .15s;white-space:nowrap;font-weight:500;background:#2E7BFF;color:#fff;flex-shrink:0}
.cd-ch-btn:hover{background:var(--primary-hover)}
.cd-ch-btn:active{background:var(--primary-active)}
.cd-ch-btn.ghost{background:#F0F2F5;color:#555}
.cd-ch-btn.ghost:hover{background:#E0E4EA;color:#333}
.cd-ch-btn.ghost:active{background:#D0D5DD}
/* ===== Course Detail - Tree Outline ===== */
.ch-group{border-bottom:1px solid #F5F7FA}
.ch-group:last-child{border-bottom:none}
.chapter-item .ch-toggle{display:inline-flex;align-items:center;justify-content:center;width:16px;height:16px;flex-shrink:0;transition:transform .15s}
.chapter-item .ch-toggle::before{content:'';display:block;width:0;height:0;border-left:5px solid #999;border-top:4px solid transparent;border-bottom:4px solid transparent;transition:border-color .15s}
.chapter-item .ch-toggle:hover::before{border-left-color:#2E7BFF}
.chapter-item.expanded .ch-toggle::before{transform:rotate(90deg)}
.ch-subs{display:none;padding:0 0 8px 36px;border-left:2px solid #EEE;margin-left:8px}
.ch-subs.expanded{display:block}
.ch-sub{display:flex;align-items:center;padding:6px 8px;gap:8px;font-size:12px;border-radius:4px;transition:background .15s}
.ch-sub:hover{background:#F5F7FA}
.ch-sub .chs-order{width:28px;font-size:11px;color:#999;flex-shrink:0}
.ch-sub .chs-name{flex:1;min-width:0;color:#333;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ch-sub .chs-duration{font-size:11px;color:#999;flex-shrink:0;width:40px;text-align:right}
.ch-sub .cd-ch-btn{padding:2px 8px;font-size:10px;border-radius:2px}
.ch-sub-sub .cd-ch-btn{padding:1px 5px;font-size:9px;border-radius:2px}
.ch-sub .cd-ch-btn.ghost{background:#F0F2F5;color:#555}
.ch-sub .cd-ch-btn.ghost:hover{background:#E0E4EA;color:#333}
.ch-sub .cd-ch-btn.ghost:active{background:#D0D5DD}
.cd-ch-btn.sc-practice{background:#00B42A;color:#fff}
.cd-ch-btn.sc-practice:hover{background:#009A24}
.cd-ch-btn.sc-practice:active{background:#00801E}
.cd-ch-btn.sc-material{background:#FFF6ED;color:#555}
.cd-ch-btn.sc-material:hover{background:#F1E3CB;color:#333}
.cd-ch-btn.sc-material:active{background:#E3D0A8}
.ch-sub .cd-ch-btn.sc-material{background:#FFF6ED;color:#555}
.ch-sub .cd-ch-btn.sc-material:hover{background:#F1E3CB;color:#333}
.ch-sub .cd-ch-btn.sc-material:active{background:#E3D0A8}
/* ===== 3rd level subs ===== */
.ch-sub-subs{display:none;padding-left:36px;margin-top:4px;border-left:2px solid #EEE;margin-left:8px}
.ch-sub-subs.expanded{display:block}
.ch-sub-sub{display:flex;align-items:center;padding:4px 8px;gap:8px;font-size:11px;border-radius:3px}
.ch-sub-sub:hover{background:#F5F7FA}
.ch-sub-sub .chss-order{width:28px;font-size:10px;color:#bbb;flex-shrink:0}
.ch-sub-sub .chss-name{flex:1;min-width:0;color:#666}
.ch-sub .chss-toggle{display:inline-flex;align-items:center;justify-content:center;width:12px;height:12px;flex-shrink:0;transition:transform .15s;margin-right:2px}
.ch-sub .chss-toggle::before{content:'';display:block;width:0;height:0;border-left:4px solid #bbb;border-top:3px solid transparent;border-bottom:3px solid transparent;transition:border-color .15s}
.ch-sub .chss-toggle:hover::before{border-left-color:#2E7BFF}
.ch-sub.expanded .chss-toggle::before{transform:rotate(90deg)}
/* ===== Purchase ===== */
.purchase-card{background:#fff;border:1px solid #EEE;border-radius:6px;padding:20px;margin-bottom:16px}
.purchase-card h3{font-size:18px;font-weight:600;color:#333;margin-bottom:12px}
.purchase-card .pc-row{display:flex;justify-content:space-between;padding:8px 0;font-size:13px;border-bottom:1px solid #F5F7FA}
.purchase-card .pc-row:last-child{border-bottom:none}
.purchase-card .pc-row .pc-label{color:#999}
.purchase-card .pc-row .pc-val{color:#333;font-weight:500}
.purchase-card .pc-row .pc-val.total{font-size:18px;color:#F53F3F;font-weight:700}
.purchase-card .pc-pay{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.purchase-card .pc-pay label{display:flex;align-items:center;gap:6px;padding:10px 14px;border:1px solid #EEE;border-radius:4px;cursor:pointer;font-size:13px;transition:all .15s}
.purchase-card .pc-pay label:hover{border-color:#B4D0FF}
.purchase-card .pc-pay label.selected{border-color:#2E7BFF;background:#F0F6FF}
.purchase-card .pc-pay input[type="radio"]{accent-color:#2E7BFF}
.pc-submit{padding:12px 32px;background:#2E7BFF;color:#fff;border:none;border-radius:4px;font-size:14px;cursor:pointer;transition:background .15s;display:inline-block}
.pc-submit:hover{background:var(--primary-hover)}
.pc-submit:active{background:var(--primary-active)}
/* ===== Article Detail ===== */
.article-wrapper{display:flex;gap:24px;align-items:flex-start}
.article-wrapper .article-detail{flex:1;min-width:0}
.article-toc{width:220px;flex-shrink:0;position:sticky;top:12px;background:#fff;border:1px solid #EEE;border-radius:6px;padding:16px;max-height:calc(100vh - 24px);overflow-y:auto}
.article-toc h4{font-size:13px;font-weight:600;color:#333;margin-bottom:10px;padding-bottom:8px;border-bottom:1px solid #EEE}
.article-toc ul{list-style:none;padding:0;margin:0}
.article-toc li{font-size:12px;color:#666;padding:5px 0;cursor:pointer;line-height:1.5;transition:color .15s;border-left:2px solid transparent;padding-left:10px}
.article-toc li:hover{color:#2E7BFF}
.article-toc .toc-h2{font-weight:600;margin-top:2px}
.article-toc .toc-h3{padding-left:18px;font-size:11px}
/* ===== Article Detail ===== */
.article-detail{background:#fff;border:1px solid #EEE;border-radius:6px;padding:24px;margin-bottom:16px}
.article-detail h1{font-size:22px;font-weight:700;color:#333;margin-bottom:8px;line-height:1.4}
.article-detail .ad-meta{font-size:12px;color:#999;margin-bottom:20px;padding-bottom:14px;border-bottom:1px solid #EEE;display:flex;gap:14px;flex-wrap:wrap}
.article-detail .ad-body{font-size:14px;line-height:1.9;color:#444}
.article-detail .ad-body p{margin-bottom:14px}
.article-detail .ad-body h2{font-size:18px;font-weight:600;color:#333;margin:24px 0 10px;padding-bottom:6px;border-bottom:1px solid #F0F0F0}
.article-detail .ad-body h3{font-size:16px;font-weight:600;color:#333;margin:20px 0 8px}
.article-detail .ad-body h4{font-size:14px;font-weight:600;color:#555;margin:16px 0 6px}
.article-detail .ad-body img{max-width:100%;height:auto;border-radius:4px;margin:12px 0;display:block}
.article-detail .ad-body table{width:100%;border-collapse:collapse;margin:12px 0;font-size:13px}
.article-detail .ad-body table th,.article-detail .ad-body table td{border:1px solid #E8E8E8;padding:8px 12px;text-align:left}
.article-detail .ad-body table th{background:#F5F7FA;font-weight:600;color:#333}
.article-detail .ad-body table tr:nth-child(even){background:#FAFCFE}
.article-detail .ad-body blockquote{margin:12px 0;padding:10px 16px;border-left:3px solid #2E7BFF;background:#F0F6FF;color:#555;font-size:13px}
.article-detail .ad-body blockquote p{margin:0}
.article-detail .ad-body ul,.article-detail .ad-body ol{padding-left:24px;margin:12px 0}
.article-detail .ad-body ul li,.article-detail .ad-body ol li{margin-bottom:6px}
.article-detail .ad-body code{font-family:monospace;font-size:12px;background:#F5F7FA;padding:2px 6px;border-radius:3px;color:#E0684B}
.article-detail .ad-body pre{background:#F5F7FA;border:1px solid #E8E8E8;border-radius:4px;padding:14px 16px;overflow-x:auto;margin:12px 0;font-size:13px;line-height:1.6}
.article-detail .ad-body pre code{background:none;padding:0;color:#444}
.article-detail .ad-body a{color:#2E7BFF;text-decoration:underline;text-underline-offset:2px}
.article-detail .ad-body a:hover{color:#175CE6}
.article-detail .ad-body strong{color:#333;font-weight:600}
.article-detail .ad-body em{font-style:italic;color:#666}
.article-nav{display:flex;justify-content:space-between;margin-top:20px;padding-top:14px;border-top:1px solid #EEE;gap:16px}
.article-nav a{font-size:12px;color:#999;cursor:pointer;transition:color .15s;max-width:45%}
.article-nav a:hover{color:#2E7BFF}
/* ===== Cert Apply ===== */
.cert-apply{background:#fff;border:1px solid #EEE;border-radius:6px;padding:24px;margin-bottom:16px}
.cert-apply h2{font-size:18px;font-weight:600;color:#333;margin-bottom:4px}
.cert-apply .ca-sub{font-size:12px;color:#999;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid #EEE}
.form-group{margin-bottom:14px}
.form-group label{display:block;font-size:13px;color:#333;margin-bottom:4px;font-weight:500}
.form-group .required{color:#F53F3F;margin-left:2px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:8px 12px;border:1px solid #EEE;border-radius:4px;font-size:13px;color:#333;background:#fff;transition:border-color .2s,background .2s;font-family:inherit}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:#2E7BFF;background:#FAFCFE}
.form-group textarea{min-height:80px;resize:vertical}
.form-group .upload-area{display:flex;align-items:center;gap:10px;padding:12px;border:1px dashed #DDD;border-radius:4px;cursor:pointer;transition:all .15s;font-size:12px;color:#999}
.form-group .upload-area:hover{border-color:#B4D0FF;color:#2E7BFF}
.form-group .upload-area:active{background:#F5F7FA}
.form-group .upload-area svg{width:18px;height:18px;fill:none;stroke:#999;stroke-width:2}
.form-actions{display:flex;gap:10px;margin-top:20px;padding-top:16px;border-top:1px solid #EEE}
/* ===== Doc Preview ===== */
.doc-preview-header{background:#fff;border:1px solid #EEE;border-radius:6px;padding:20px;margin-bottom:16px;display:flex;gap:16px;align-items:flex-start}
.doc-preview-header .dph-icon{width:48px;height:48px;border-radius:6px;background:var(--thumb-blue);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.doc-preview-header .dph-icon svg{width:24px;height:24px;fill:none;stroke:#999;stroke-width:2}
.doc-preview-header .dph-info{flex:1;min-width:0}
.doc-preview-header .dph-info h2{font-size:18px;font-weight:600;color:#333;margin-bottom:4px}
.doc-preview-header .dph-info .dph-meta{font-size:12px;color:#999;display:flex;gap:12px;flex-wrap:wrap;margin-bottom:4px}
.doc-preview-header .dph-info .dph-tags{display:flex;gap:4px;flex-wrap:wrap}
.doc-preview-area{background:#fff;border:1px solid #EEE;border-radius:6px;padding:32px;margin-bottom:16px;min-height:400px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#999;font-size:14px;text-align:center}
.doc-preview-area svg{width:48px;height:48px;fill:none;stroke:#CCC;stroke-width:1.5;margin-bottom:12px}
/* ===== ZT Detail ===== */
.zt-detail-header{background:#fff;border:1px solid #EEE;border-radius:6px;padding:24px;margin-bottom:16px}
.zt-detail-header h2{font-size:20px;font-weight:700;color:#333;margin-bottom:6px}
.zt-detail-header .zd-desc{font-size:13px;color:#666;line-height:1.7;margin-bottom:10px}
.zt-detail-header .zd-meta{font-size:12px;color:#999;display:flex;gap:14px}
.zt-related .zr-item{display:flex;align-items:center;padding:10px 0;border-bottom:1px solid #F5F7FA;gap:10px;cursor:pointer;transition:background .15s}
.zt-related .zr-item:last-child{border-bottom:none}
.zt-related .zr-item:hover{background:#FAFCFE}
.zt-related .zr-item .zr-type{font-size:10px;padding:1px 8px;border-radius:2px;flex-shrink:0}
.zr-type.type-course{background:#E8F8EE;color:#00B42A}
.zr-type.type-exam{background:#FFF4E5;color:#FF7D00}
.zr-type.type-doc{background:#E8EEFF;color:#2E7BFF}
.zr-type.type-news{background:#FFF0F0;color:#F53F3F}
.zt-related .zr-item .zr-title{font-size:13px;color:#333;flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.zt-related .zr-item .zr-date{font-size:11px;color:#bbb;flex-shrink:0}
/* ===== Modal ===== */
.modal-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);z-index:500;align-items:center;justify-content:center}
.modal-overlay.show{display:flex}
.modal-box{background:#fff;border-radius:8px;padding:24px;max-width:420px;width:90%;text-align:center}
.modal-box h3{font-size:16px;font-weight:600;color:#333;margin-bottom:8px}
.modal-box p{font-size:13px;color:#666;margin-bottom:16px;line-height:1.5}
.modal-box .modal-actions{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.modal-box .modal-btn{padding:8px 24px;border-radius:4px;font-size:13px;cursor:pointer;transition:all .15s;user-select:none;border:none}
.modal-box .modal-btn.primary{background:#2E7BFF;color:#fff}
.modal-box .modal-btn.primary:hover{background:var(--primary-hover)}
.modal-box .modal-btn.primary:active{background:var(--primary-active)}
.modal-box .modal-btn.secondary{background:#fff;border:1px solid #EEE;color:#333}
.modal-box .modal-btn.secondary:hover{border-color:#2E7BFF;color:#2E7BFF}
.modal-box .modal-btn.secondary:active{background:rgba(46,123,255,.1)}
.modal-box .modal-btn.outline{background:#fff;border:1px solid #2E7BFF;color:#2E7BFF}
.modal-box .modal-btn.outline:hover{background:#E8EFFE}
/* ===== Learning Page ===== */
.learning-page{display:flex;background:#fff;border:1px solid #EEE;border-radius:8px;overflow:hidden;margin-bottom:12px;min-height:460px}
.learning-main{width:55%;min-width:0;flex-shrink:0;display:flex;flex-direction:column}
.lp-player{position:relative;background:#1a1a2e;aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;cursor:pointer;overflow:hidden;flex-shrink:0}
.lpp-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.35);font-size:52px;color:#fff;opacity:0;transition:opacity .25s;z-index:2}
.lp-player:hover .lpp-overlay{opacity:1}
.lpp-placeholder{color:rgba(255,255,255,.08);font-size:14px;text-align:center}
.lpp-placeholder .lpp-bg{width:120px;height:90px;margin:0 auto 12px;border-radius:4px;background:linear-gradient(135deg,rgba(255,255,255,.05),rgba(255,255,255,.12))}
.lpp-placeholder .lpp-label{font-size:13px;color:rgba(255,255,255,.25)}
.lpp-controls{position:absolute;bottom:0;left:0;right:0;display:flex;align-items:center;gap:8px;padding:8px 12px;background:linear-gradient(transparent,rgba(0,0,0,.65));z-index:3}
.lppc-btn{color:#fff;font-size:12px;cursor:pointer;opacity:.8;white-space:nowrap}
.lppc-btn:hover{opacity:1}
.lppc-bar{flex:1;height:4px;background:rgba(255,255,255,.2);border-radius:2px;cursor:pointer;margin:0 6px}
.lppc-progress{height:100%;background:#2E7BFF;border-radius:2px;position:relative}
.lppc-time{color:rgba(255,255,255,.65);font-size:11px;white-space:nowrap;font-variant-numeric:tabular-nums}
.player-complete-btn{position:absolute;top:10px;right:10px;padding:5px 12px;border-radius:4px;border:none;background:rgba(0,0,0,.45);color:#fff;font-size:11px;cursor:pointer;z-index:4;transition:background .15s;font-weight:500}
.player-complete-btn:hover{background:rgba(0,0,0,.65)}
.player-complete-btn.done{background:rgba(0,180,42,.55);pointer-events:none}
/* ===== Right Panel ===== */
.learning-right{flex:1;display:flex;flex-direction:column;border-left:1px solid #EEE;min-width:0}
.lr-content{flex:1;overflow-y:auto;min-height:0}
.lr-panel{display:none;padding:16px}
.lr-panel.active{display:block}
.lr-tabs{display:flex;border-bottom:1px solid #EEE;background:#fff;flex-shrink:0}
.lr-tabs .lrt{padding:10px 16px;font-size:12px;cursor:pointer;color:#666;border-bottom:2px solid transparent;transition:all .15s;user-select:none}
.lr-tabs .lrt:hover{color:#333}
.lr-tabs .lrt.active{color:#2E7BFF;border-bottom-color:#2E7BFF;font-weight:500}
.lr-tabs .lrt::before{content:'';display:inline-block;width:3px;height:13px;border-radius:1.5px;background:#ddd;vertical-align:-2px;margin-right:6px;flex-shrink:0;transition:background .15s}
.lr-tabs .lrt:hover::before{background:#B4D0FF}
.lr-tabs .lrt.active::before{background:#2E7BFF}
.lr-intro-text{font-size:13px;color:#555;line-height:1.8}
.lr-intro-text h4{font-size:14px;font-weight:600;color:#333;margin:16px 0 6px;padding-bottom:4px;border-bottom:1px solid #F5F7FA}
.lr-intro-text h4:first-child{margin-top:0}
.lr-intro-text ul{list-style:none;padding:0;margin:0}
.lr-intro-text ul li{padding:2px 0;display:flex;align-items:flex-start;gap:6px}
.lr-intro-text ul li::before{content:'·';color:#2E7BFF;font-weight:700;flex-shrink:0}
.lm-file{display:flex;align-items:center;gap:8px;padding:10px 12px;border-bottom:1px solid #F5F7FA;cursor:pointer;transition:background .15s}
.lm-file:hover{background:#FAFCFE}
.lm-file .lmf-name{flex:1;font-size:13px;color:#333}
.lm-file .lmf-size{font-size:11px;color:#999}
.ext-label{padding:1px 6px;border-radius:3px;font-size:10px;color:#fff;font-weight:600;flex-shrink:0;line-height:1.6}
.ext-pdf{background:#F53F3F}
.ext-img{background:#2E7BFF}
.ext-zip{background:#FF7D00}
.ext-ppt{background:#7C3AED}
.ext-mp4{background:#00B42A}
.ext-xls{background:#14C9C9}
@media(max-width:900px){.learning-page{flex-direction:column}.learning-main{width:100%}.learning-right{border-left:none;border-top:1px solid #EEE}}
/* ===== Achievement Center ===== */
.ach-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:16px}
.ach-stat{background:#fff;border:1px solid #EEE;border-radius:6px;padding:14px;text-align:center}
.ach-stat .as-value{font-size:18px;font-weight:700;color:#2E7BFF;margin-bottom:2px}
.ach-stat .as-bar{height:6px;background:#F0F4FF;border-radius:3px;overflow:hidden;margin:4px 12px}
.ach-stat .as-bar .bar{height:100%;background:#2E7BFF;border-radius:3px}
.ach-stat .as-label{font-size:11px;color:#999}
.badge-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px;margin-bottom:16px}
.badge-card{background:#fff;border:1px solid #EEE;border-radius:6px;padding:16px 12px;text-align:center;cursor:pointer;transition:all .15s;position:relative}
.badge-card:hover{border-color:#B4D0FF;transform:translateY(-2px)}
.badge-card .bc-icon{width:40px;height:40px;margin-bottom:8px;position:relative;display:inline-flex;align-items:center;justify-content:center;border-radius:10px}
.badge-card .bc-icon svg{width:24px;height:24px;display:block;color:#555}
.badge-card .bc-icon.bc-streak{background:hsl(215,22%,96%)}
.badge-card .bc-icon.bc-questions{background:hsl(175,22%,93%)}
.badge-card .bc-icon.bc-accuracy{background:hsl(35,22%,96%)}
.badge-card .bc-icon.bc-courses{background:hsl(260,22%,95%)}
.badge-card .bc-icon.bc-speed{background:hsl(0,22%,96%)}
.badge-card .bc-icon.bc-hidden{background:hsl(200,22%,95%)}
.badge-card .bc-icon .bc-tier{position:absolute;bottom:-4px;right:-8px;font-size:10px;padding:1px 4px;border-radius:2px;color:#fff;line-height:1.4}
.badge-card .bc-icon .bc-tier.bronze{background:#CD7F32}
.badge-card .bc-icon .bc-tier.silver{background:#A8A8A8}
.badge-card .bc-icon .bc-tier.gold{background:#D4A017}
.badge-card .bc-icon .bc-tier.diamond{background:#4AA3B8}
.badge-card .bc-icon .bc-tier.special{background:#9B59B6}
.badge-card h4{font-size:13px;font-weight:600;color:#333;margin-bottom:2px}
.badge-card p{font-size:11px;color:#999;margin-bottom:8px;line-height:1.3}
.badge-card .bc-bar{height:4px;background:#F0F4FF;border-radius:2px;overflow:hidden;margin-bottom:4px}
.badge-card .bc-bar .bar{height:100%;background:#2E7BFF;border-radius:2px}
.badge-card .bc-status{font-size:10px;color:#999}
.badge-card .bc-status.earned{color:#00B42A;font-weight:600}
.bc-condition{font-size:10px;color:#999;margin:4px 0 2px;line-height:1.4}
.badge-card.locked{opacity:.65;filter:grayscale(.4)}
.lv-bubble{position:absolute;z-index:200;background:#fff;border-radius:6px;box-shadow:0 4px 20px rgba(0,0,0,.12);padding:14px 16px;font-size:12px;color:#555;line-height:1.7;width:280px;top:100%;left:0;margin-top:6px;text-align:left}
.lv-bubble::before{content:'';position:absolute;top:-6px;left:24px;width:0;height:0;border-left:6px solid transparent;border-right:6px solid transparent;border-bottom:6px solid #fff}
.lv-bubble h5{font-size:13px;font-weight:600;color:#333;margin-bottom:6px}
.lv-bubble .lv-row{display:flex;justify-content:space-between;padding:2px 0}
.lv-bubble .lv-row .lv-lbl{color:#999}
.lv-bubble .lv-row .lv-val{color:#333;font-weight:500}
.lv-bubble .lv-divider{border:none;border-top:1px solid #EEE;margin:6px 0}
.badge-card.locked .bc-icon{filter:grayscale(1)}
.badge-card:not(.locked){background:hsl(120,20%,97%);border-color:#00B42A}
.badge-card:not(.locked) .bc-icon svg{color:#fff}
.badge-card:not(.locked) .bc-icon.bc-streak{background:#4A90D9}
.badge-card:not(.locked) .bc-icon.bc-questions{background:#00B42A}
.badge-card:not(.locked) .bc-icon.bc-accuracy{background:#FF7D00}
.badge-card:not(.locked) .bc-icon.bc-courses{background:#7B61FF}
.badge-card:not(.locked) .bc-icon.bc-speed{background:#E84949}
.badge-card:not(.locked) .bc-icon.bc-hidden{background:#1BA7C0}
.badge-card:not(.locked) .bc-status.earned{background:#E8F8EE;padding:2px 8px;border-radius:2px;display:inline-block}
.badge-card:not(.locked) .bc-bar .bar{background:#00B42A}
.badge-card:not(.locked) .bc-condition{color:#555}
.badge-card:not(.locked) .bc-bar{background:#D4EDDA}
.ach-tabs{display:flex;gap:6px;margin-bottom:14px;flex-wrap:wrap}
.ach-tabs .tab{padding:6px 14px;font-size:12px;cursor:pointer;color:#666;transition:all .15s;user-select:none;border:none;background:none;border-radius:0;border-bottom:2px solid transparent}
.ach-tabs .tab:hover{color:#333}
.ach-tabs .tab.active{color:#2E7BFF;border-bottom-color:#2E7BFF;font-weight:500}
.ach-empty{padding:32px;text-align:center;color:#999;font-size:13px}
@media(max-width:640px){.ach-stats{grid-template-columns:repeat(2,1fr)}.badge-grid{grid-template-columns:repeat(3,1fr)}}
/* ===== Auth Modal ===== */
.auth-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);z-index:600;align-items:center;justify-content:center}
.auth-overlay.show{display:flex}
.auth-modal{background:#fff;border-radius:12px;width:420px;max-width:92vw;max-height:90vh;overflow-y:auto;box-shadow:0 8px 40px rgba(0,0,0,.15);animation:authIn .2s ease}
@keyframes authIn{from{opacity:0;transform:translateY(20px)scale(.97)}to{opacity:1;transform:translateY(0)scale(1)}}
.auth-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px 0}
.auth-header .auth-title{font-size:17px;font-weight:700;color:#333}
.auth-close{width:28px;height:28px;border-radius:50%;border:none;background:#F5F7FA;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:14px;color:#999;transition:all .15s}
.auth-close:hover{background:#EEE;color:#333}
.auth-body{padding:20px 24px 24px}
.auth-tabs{display:flex;margin-bottom:20px;border-bottom:1px solid #EEE;gap:0}
.auth-tab{flex:1;text-align:center;padding:10px 0;font-size:14px;color:#999;cursor:pointer;border-bottom:2px solid transparent;transition:all .15s;user-select:none}
.auth-tab:hover{color:#333}
.auth-tab.active{color:#2E7BFF;border-bottom-color:#2E7BFF;font-weight:600}
.auth-tab-content{display:none}
.auth-tab-content.active{display:block}
.auth-input-group{position:relative;margin-bottom:14px}
.auth-input-group input{width:100%;height:44px;padding:0 14px;border:1px solid #DDD;border-radius:8px;font-size:14px;color:#333;outline:none;transition:border-color .2s;background:#fff}
.auth-input-group input:focus{border-color:#2E7BFF;box-shadow:0 0 0 3px rgba(46,123,255,.12)}
.auth-input-group input::placeholder{color:#bbb}
.auth-code-group{display:flex;gap:10px}
.auth-code-group input{flex:1}
.auth-code-btn{height:44px;padding:0 16px;border-radius:8px;font-size:13px;border:1px solid #2E7BFF;color:#2E7BFF;background:#fff;cursor:pointer;white-space:nowrap;transition:all .15s;flex-shrink:0}
.auth-code-btn:hover{background:#F0F6FF}
.auth-code-btn:active{background:#E0ECFF}
.auth-code-btn:disabled{opacity:.5;cursor:not-allowed;background:#F5F7FA;border-color:#DDD;color:#999}
.auth-pwd-toggle{position:absolute;right:12px;top:50%;transform:translateY(-50%);background:none;border:none;cursor:pointer;color:#999;font-size:13px;padding:4px}
.auth-pwd-toggle:hover{color:#333}
.auth-options{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;font-size:12px;color:#999}
.auth-options label{display:flex;align-items:center;gap:4px;cursor:pointer}
.auth-options label input[type=checkbox]{accent-color:#2E7BFF}
.auth-options a{color:#2E7BFF;cursor:pointer}
.auth-options a:hover{text-decoration:underline}
.auth-btn{width:100%;height:44px;border-radius:8px;border:none;font-size:15px;font-weight:600;color:#fff;background:#2E7BFF;cursor:pointer;transition:background .15s;margin-bottom:16px}
.auth-btn:hover{background:var(--primary-hover)}
.auth-btn:active{background:var(--primary-active)}
.auth-btn:disabled{opacity:.5;cursor:not-allowed;background:#ccc}
.auth-divider{display:flex;align-items:center;gap:12px;margin:16px 0;color:#ccc;font-size:12px}
.auth-divider::before,.auth-divider::after{content:'';flex:1;height:1px;background:#EEE}
.auth-social{display:flex;gap:10px;margin-bottom:16px}
.auth-social-btn{flex:1;height:42px;border-radius:8px;border:1px solid #EEE;background:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:6px;font-size:12px;color:#333;transition:all .15s}
.auth-social-btn:hover{border-color:#B4D0FF;background:#FAFCFE}
.auth-social-btn:active{background:#F0F4FF}
.auth-social-btn svg{width:20px;height:20px;flex-shrink:0}
.auth-footer{text-align:center;font-size:12px;color:#999;padding-top:4px}
.auth-footer a{color:#2E7BFF;cursor:pointer;font-weight:500}
.auth-footer a:hover{text-decoration:underline}
.auth-agree{font-size:11px;color:#999;display:flex;align-items:center;gap:4px;margin-bottom:14px;justify-content:center}
.auth-agree input[type=checkbox]{accent-color:#2E7BFF}
.auth-agree a{color:#2E7BFF;cursor:pointer}
.auth-success{text-align:center;padding:20px 0}
.auth-success .as-icon{font-size:48px;margin-bottom:12px}
.auth-success h3{font-size:18px;font-weight:700;color:#333;margin-bottom:6px}
.auth-success p{font-size:13px;color:#999;margin-bottom:4px}
.auth-back-link{display:inline-flex;align-items:center;gap:4px;color:#2E7BFF;font-size:13px;cursor:pointer;margin-bottom:16px}
.auth-back-link:hover{text-decoration:underline}
/* ===== Profile Subpages ===== */
.avatar-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:14px}
.avatar-opt{width:100%;aspect-ratio:1;border-radius:50%;border:2px solid transparent;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:20px;color:#fff;font-weight:600;transition:all .15s}
.avatar-opt:hover{border-color:#B4D0FF;transform:scale(1.08)}
.avatar-opt.active{border-color:#2E7BFF;box-shadow:0 0 0 3px rgba(46,123,255,.2)}
.order-list{background:#fff;border:1px solid #EEE;border-radius:6px;overflow:hidden}
.order-item{display:flex;align-items:center;padding:14px 16px;border-bottom:1px solid #F5F7FA;gap:12px}
.order-item:last-child{border-bottom:none}
.order-item .oi-icon{width:40px;height:40px;border-radius:6px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:18px}
.order-item .oi-body{flex:1;min-width:0}
.order-item .oi-body h4{font-size:14px;font-weight:600;color:#333;margin-bottom:2px}
.order-item .oi-body .oi-meta{font-size:11px;color:#999}
.order-item .oi-price{font-size:15px;font-weight:700;color:#F53F3F;white-space:nowrap}
.order-item .oi-status{font-size:11px;padding:2px 8px;border-radius:2px;white-space:nowrap}
.order-item .oi-status.done{background:#E8F8EE;color:#00B42A}
.order-item .oi-status.cancel{background:#F5F7FA;color:#999}
.binding-list{background:#fff;border:1px solid #EEE;border-radius:6px;overflow:hidden}
.binding-item{display:flex;align-items:center;padding:14px 16px;border-bottom:1px solid #F5F7FA;gap:12px}
.binding-item:last-child{border-bottom:none}
.binding-item .bi-icon{width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.binding-item .bi-body{flex:1;min-width:0}
.binding-item .bi-body h4{font-size:14px;font-weight:600;color:#333;margin-bottom:2px}
.binding-item .bi-body .bi-sub{font-size:11px;color:#999}
.binding-item .bi-btn{padding:6px 16px;border-radius:4px;font-size:12px;cursor:pointer;border:none;transition:all .15s}
.binding-item .bi-btn.bind{background:#2E7BFF;color:#fff}
.binding-item .bi-btn.bind:hover{background:var(--primary-hover)}
.binding-item .bi-btn.unbind{background:#fff;border:1px solid #EEE;color:#999}
.binding-item .bi-btn.unbind:hover{border-color:#F53F3F;color:#F53F3F}
.report-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:16px}
.report-card{background:#fff;border:1px solid #EEE;border-radius:6px;padding:16px;text-align:center}
.report-card .rc-num{font-size:28px;font-weight:700;color:#2E7BFF;margin-bottom:4px}
.report-card .rc-label{font-size:12px;color:#999}
.report-chart{background:#fff;border:1px solid #EEE;border-radius:6px;padding:16px;margin-bottom:16px}
.report-chart h4{font-size:14px;font-weight:600;color:#333;margin-bottom:12px;padding-bottom:8px;border-bottom:1px solid #EEE}
/* ===== Profile Edit ===== */
.profile-form{background:#fff;border:1px solid #EEE;border-radius:6px;padding:24px;margin-bottom:16px;max-width:600px}
.profile-form .pf-avatar{display:flex;align-items:center;gap:12px;margin-bottom:16px;padding-bottom:16px;border-bottom:1px solid #EEE}
.profile-form .pf-avatar .pfa-img{width:64px;height:64px;border-radius:50%;background:#2E7BFF;display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;flex-shrink:0}
.profile-form .pf-avatar .pfa-btn{font-size:12px;color:#2E7BFF;cursor:pointer;padding:4px 12px;border:1px solid #B4D0FF;border-radius:3px;transition:all .15s;background:#fff}
.profile-form .pf-avatar .pfa-btn:hover{background:#2E7BFF;color:#fff;border-color:#2E7BFF}
/* ===== Empty fix ===== */
.breadcrumb{display:flex;align-items:center;gap:4px;font-size:12px;color:#999;margin-bottom:14px}
.breadcrumb a{color:#999;cursor:pointer;transition:color .15s}
.breadcrumb a:hover{color:#2E7BFF}
.breadcrumb .sep{color:#ddd;margin:0 2px}
/* ===== Profile Sub Pages ===== */
.sub-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.sub-header h2{font-size:18px;font-weight:600;color:#333}
.sub-header .sub-back{font-size:12px;color:#999;cursor:pointer;display:flex;align-items:center;gap:4px;transition:color .15s}
.sub-header .sub-back:hover{color:#2E7BFF}
/* Scroll smooth */
html{scroll-behavior:smooth}
/* ===== AI Chat ===== */
.ai-fab{position:fixed;bottom:80px;right:20px;z-index:400;width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#2E7BFF,#1a5fcc);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;cursor:pointer;box-shadow:0 4px 16px rgba(46,123,255,.35);transition:all .2s;user-select:none}
.ai-fab:hover{transform:scale(1.1);box-shadow:0 6px 20px rgba(46,123,255,.45)}
.ai-fab:active{transform:scale(.95)}
.ai-chat-panel{position:fixed;bottom:140px;right:20px;z-index:450;width:340px;max-height:480px;background:#fff;border-radius:12px;box-shadow:0 8px 32px rgba(0,0,0,.15);display:none;flex-direction:column;overflow:hidden;animation:chatIn .25s ease}
.ai-chat-panel.show{display:flex}
@keyframes chatIn{from{opacity:0;transform:translateY(16px)scale(.96)}to{opacity:1;transform:translateY(0)scale(1)}}
.aic-header{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;background:#2E7BFF;color:#fff;font-size:14px;font-weight:600}
.aic-close{width:24px;height:24px;border-radius:50%;background:rgba(255,255,255,.2);border:none;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:12px;transition:background .15s}
.aic-close:hover{background:rgba(255,255,255,.35)}
.aic-messages{flex:1;overflow-y:auto;padding:12px 14px;display:flex;flex-direction:column;gap:8px}
.aic-msg{max-width:88%;padding:10px 12px;border-radius:8px;font-size:13px;line-height:1.6;word-break:break-word}
.aic-bot{background:#F5F7FA;color:#333;align-self:flex-start;border-bottom-left-radius:2px}
.aic-user{background:#2E7BFF;color:#fff;align-self:flex-end;border-bottom-right-radius:2px}
.aic-faq{background:#FFFDE7;color:#333;align-self:flex-start;font-size:12px;padding:10px 12px;width:100%;border-radius:8px}
.aic-faq span{font-weight:600;display:block;margin-bottom:4px;color:#666;font-size:11px}
.aic-faq-item{display:inline-block;padding:4px 10px;border-radius:12px;background:#FFF8E1;color:#F57F17;font-size:11px;margin:3px 4px 3px 0;cursor:pointer;transition:all .15s;border:1px solid #FFE082}
.aic-faq-item:hover{background:#F57F17;color:#fff;border-color:#F57F17}
.aic-input{display:flex;padding:8px;border-top:1px solid #EEE;gap:6px;background:#fff}
.aic-input input{flex:1;height:36px;border:1px solid #EEE;border-radius:18px;padding:0 14px;font-size:12px;outline:none;transition:border-color .2s}
.aic-input input:focus{border-color:#2E7BFF}
.aic-input button{height:36px;padding:0 16px;border-radius:18px;background:#2E7BFF;color:#fff;border:none;font-size:12px;cursor:pointer;transition:background .15s;white-space:nowrap}
.aic-input button:hover{background:var(--primary-hover)}
.aic-input button:active{background:var(--primary-active)}
.aic-footer{padding:6px 14px;font-size:10px;color:#bbb;text-align:center;border-top:1px solid #F5F7FA;background:#FAFAFA}
/* ===== QR Modal ===== */
@keyframes qrScan{0%{top:8px}50%{top:168px}100%{top:8px}}
/* ===== CAPTCHA ===== */
.captcha-box{padding:12px 0;border-top:1px solid #F0F2F5;border-bottom:1px solid #F0F2F5;margin-bottom:12px}
.captcha-box .fg{margin-bottom:8px}
.captcha-box .fg label{font-size:13px;font-weight:600;color:#1E293B;margin-bottom:4px}
.captcha-box .fg input{height:36px;padding:0 10px;font-size:14px;letter-spacing:1px}
/* ===== Select Plan ===== */
.select-plan-active{border-color:#2E7BFF!important;background:#F0F6FF!important}
/* ===== Wrong Book Tabs ===== */
.wrong-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:16px}
/* ===== Admin Shell ===== */
body:has(.admin-shell) #nav{display:none!important}
.admin-shell{display:flex;min-height:100vh;background:#F5F7FA}
.admin-sidebar{width:220px;background:#1E293B;color:#fff;flex-shrink:0;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow-y:auto}
.admin-sidebar a{text-decoration:none;color:inherit}
.admin-main{flex:1;min-height:100vh;padding:24px 28px;overflow-y:auto}
.admin-page{max-width:1200px}
.admin-page h1{font-size:22px;font-weight:700;color:#1E293B;margin-bottom:20px}
.admin-page h2{font-size:16px;font-weight:600;color:#1E293B;margin-bottom:12px}
/* ---- Sidebar Logo ---- */
.as-logo{display:flex;align-items:center;gap:10px;padding:18px 20px;cursor:pointer;border-bottom:1px solid rgba(255,255,255,.08)}
.as-logo-icon{width:36px;height:36px;border-radius:8px;background:linear-gradient(135deg,#2E7BFF,#5B9BFF);display:flex;align-items:center;justify-content:center}
.as-logo span{font-size:15px;font-weight:700;letter-spacing:.5px}
/* ---- Sidebar Navigation ---- */
.as-nav{flex:1;padding:8px 0;overflow-y:auto}
.as-item{display:flex;align-items:center;gap:10px;padding:10px 20px;color:rgba(255,255,255,.55);font-size:13px;cursor:pointer;transition:all .15s;position:relative;white-space:nowrap;overflow:hidden}
.as-item:hover{background:rgba(255,255,255,.06);color:rgba(255,255,255,.9)}
.as-item.active{background:rgba(46,123,255,.2);color:#fff;border-radius:0 6px 6px 0;margin-right:12px}
.as-item.active::before{content:'';position:absolute;left:0;top:10%;height:80%;width:3px;background:#2E7BFF;border-radius:0 2px 2px 0}
.as-item svg{flex-shrink:0}
.as-item span{overflow:hidden;text-overflow:ellipsis}
.as-more{cursor:pointer}
.as-arrow{font-size:10px;margin-left:auto;transition:transform .2s}
.as-more.open .as-arrow{transform:rotate(90deg)}
.as-submenu{padding:4px 0 4px 32px;display:none}
.as-subitem{display:block;padding:7px 16px;color:rgba(255,255,255,.5);font-size:12px;cursor:pointer;transition:color .15s;border-radius:4px}
.as-subitem:hover{color:#fff;background:rgba(255,255,255,.06)}
.as-subitem.active{color:#fff;background:rgba(46,123,255,.15)}
.as-footer{padding:14px 20px;border-top:1px solid rgba(255,255,255,.08);font-size:11px;color:rgba(255,255,255,.35);display:flex;align-items:center;justify-content:space-between}
.as-footer a{cursor:pointer;color:rgba(255,255,255,.5);transition:color .15s}
.as-footer a:hover{color:#F53F3F}
/* ---- Admin Cards ---- */
.admin-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px;margin-bottom:24px}
.admin-card{background:#fff;border-radius:8px;padding:18px 20px;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.ac-label{font-size:11px;color:#999;margin-bottom:6px}
.ac-value{font-size:26px;font-weight:700;color:#1E293B}
.ac-trend{font-size:11px;margin-top:4px;color:#999}
.ac-trend.up{color:#00B42A}
.ac-trend.down{color:#F53F3F}
.ac-progress{height:4px;background:#EEE;border-radius:2px;margin-top:8px;overflow:hidden}
.ac-bar-fill{height:100%;background:#2E7BFF;border-radius:2px;transition:width .6s}
/* ---- Admin Section ---- */
.admin-section{background:#fff;border-radius:8px;padding:20px;margin-bottom:20px;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.admin-section h2{font-size:15px;font-weight:600;color:#1E293B;margin-bottom:14px}
.chart-area{padding:8px 0}
/* ---- Funnel Chart ---- */
.funnel-bar{display:flex;gap:3px;height:32px;border-radius:4px;overflow:hidden}
.funnel-seg{display:flex;align-items:center;justify-content:center;color:#fff;font-size:11px;font-weight:600;min-width:40px}
.funnel-labels{display:flex;margin-top:8px}
.funnel-labels span{flex:1;text-align:center;font-size:10px;color:#999}
/* ---- Admin RS-Bar (label + track + value) ---- */
.admin-main .rs-bar{height:auto;display:flex;align-items:center;gap:12px;margin-bottom:10px;background:transparent;border-radius:0}
.rs-label{min-width:70px;font-size:12px;color:#666;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rs-track{flex:1;height:8px;background:#EEE;border-radius:4px;overflow:hidden}
.rs-fill{height:100%;border-radius:4px;transition:width .6s ease}
.rs-val{width:48px;font-size:12px;color:#333;text-align:right;font-weight:600;flex-shrink:0}
/* ---- Calendar ---- */
.cal-month{padding:4px 0}
/* ---- Admin Table ---- */
.admin-table-wrap{overflow-x:auto;margin-bottom:16px}
.admin-table{width:100%;border-collapse:collapse;font-size:13px}
.admin-table th{background:#F5F7FA;padding:10px 12px;text-align:left;font-weight:600;color:#666;border-bottom:2px solid #E5E8EB;white-space:nowrap;font-size:12px}
.admin-table td{padding:10px 12px;border-bottom:1px solid #F0F2F5;color:#333}
.admin-table tbody tr:hover td{background:#FAFBFC}
/* ---- Admin Buttons ---- */
.admin-btn{display:inline-flex;align-items:center;gap:5px;padding:7px 15px;border-radius:6px;font-size:13px;font-weight:500;border:none;cursor:pointer;background:#2E7BFF;color:#fff;transition:background .15s}
.admin-btn:hover{background:var(--primary-hover)}
.admin-btn:active{background:var(--primary-active)}
.admin-btn-sm{padding:3px 9px;font-size:11px}
/* ---- Filter Bar ---- */
.filter-bar{display:flex;gap:10px;margin-bottom:16px;align-items:center;flex-wrap:wrap}
.filter-bar input{flex:1;min-width:160px;height:36px;border:1px solid #E5E8EB;border-radius:6px;padding:0 10px;font-size:13px;outline:none;transition:border-color .15s}
.filter-bar input:focus{border-color:#2E7BFF}
.filter-bar select{height:36px;border:1px solid #E5E8EB;border-radius:6px;padding:0 8px;font-size:13px;outline:none;background:#fff;cursor:pointer;transition:border-color .15s}
.filter-bar select:focus{border-color:#2E7BFF}
/* ---- User Detail ---- */
.admin-user-detail{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.admin-user-detail .aud-card{background:#fff;border-radius:8px;padding:18px;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.admin-user-detail .aud-card h3{font-size:13px;color:#999;margin-bottom:10px;font-weight:500}
/* ---- Admin Form ---- */
.admin-form{background:#fff;border-radius:8px;padding:24px;box-shadow:0 1px 2px rgba(0,0,0,.04);margin-bottom:20px}
.admin-form h3{font-size:15px;font-weight:600;color:#1E293B;margin-bottom:16px}
.admin-form .fg{margin-bottom:14px}
.admin-form .fg label{display:block;font-size:12px;color:#666;margin-bottom:4px;font-weight:500}
.admin-form .fg input,.admin-form .fg textarea,.admin-form .fg select{width:100%;padding:8px 10px;border:1px solid #E5E8EB;border-radius:6px;font-size:13px;outline:none;transition:border-color .15s;box-sizing:border-box}
.admin-form .fg input:focus,.admin-form .fg textarea:focus,.admin-form .fg select:focus{border-color:#2E7BFF}
.admin-form .fg textarea{min-height:80px;resize:vertical}
/* ---- Admin Tabs ---- */
.admin-main .tabs{display:flex;gap:0;margin-bottom:16px;border-bottom:2px solid #EEE}
.admin-main .tab{padding:10px 18px;font-size:13px;color:#666;cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;transition:all .15s}
.admin-main .tab.active{color:#2E7BFF;border-bottom-color:#2E7BFF;font-weight:500}
.admin-main .tab:hover{color:#2E7BFF}
/* ---- Admin AI Content ---- */
.ai-gen-card{background:#fff;border-radius:8px;padding:20px;box-shadow:0 1px 2px rgba(0,0,0,.04);margin-bottom:16px;display:flex;align-items:center;gap:16px}
.ai-gen-card .agc-icon{width:44px;height:44px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;flex-shrink:0}
.ai-gen-card .agc-body{flex:1}
.ai-gen-card .agc-body h3{font-size:14px;font-weight:600;color:#1E293B;margin-bottom:4px}
.ai-gen-card .agc-body p{font-size:12px;color:#999;margin:0}
/* ---- Admin Community ---- */
.comm-card{background:#fff;border-radius:8px;padding:18px;box-shadow:0 1px 2px rgba(0,0,0,.04);cursor:pointer;transition:box-shadow .15s}
.comm-card:hover{box-shadow:0 2px 8px rgba(0,0,0,.08)}
.comm-card h3{font-size:15px;font-weight:600;color:#1E293B;margin-bottom:6px}
.comm-card .comm-meta{font-size:12px;color:#999}
/* ---- Admin Settings ---- */
.settings-group{background:#fff;border-radius:8px;padding:20px;box-shadow:0 1px 2px rgba(0,0,0,.04);margin-bottom:16px}
.settings-group h3{font-size:14px;font-weight:600;color:#1E293B;margin-bottom:12px;padding-bottom:8px;border-bottom:1px solid #F0F2F5}
.settings-row{display:flex;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid #F8F9FA}
.settings-row:last-child{border-bottom:none}
.settings-row label{font-size:13px;color:#333}
.settings-row input,.settings-row select,.settings-row textarea{width:260px;padding:6px 10px;border:1px solid #E5E8EB;border-radius:6px;font-size:13px;outline:none}
.settings-row input:focus,.settings-row select:focus,.settings-row textarea:focus{border-color:#2E7BFF}
/* ---- Admin Distribution ---- */
.dist-card{background:#fff;border-radius:8px;padding:18px;box-shadow:0 1px 2px rgba(0,0,0,.04);text-align:center}
.dist-card .dc-icon{width:48px;height:48px;border-radius:12px;margin:0 auto 10px;display:flex;align-items:center;justify-content:center;font-size:22px}
.dist-card .dc-name{font-size:14px;font-weight:600;color:#1E293B;margin-bottom:4px}
.dist-card .dc-stat{font-size:11px;color:#999}
/* ---- Admin Supervision ---- */
.supervision-alert{display:flex;align-items:center;gap:12px;padding:14px 18px;border-radius:8px;margin-bottom:12px;font-size:13px}
.supervision-alert.high{background:#FFF0F0;border:1px solid #FFD0D0;color:#F53F3F}
.supervision-alert.medium{background:#FFF7E6;border:1px solid #FFE0A0;color:#FF7D00}
.supervision-alert.low{background:#F0F6FF;border:1px solid #D0E0FF;color:#2E7BFF}
/* ---- Responsive Admin ---- */
@media(max-width:900px){
.admin-sidebar{width:56px}
.as-item span,.as-logo span,.as-submenu,.as-footer span{display:none!important}
.as-logo{justify-content:center;padding:14px 0}
.as-item{justify-content:center;padding:10px 0;margin-right:0}
.as-item.active{border-radius:0;margin-right:0}
.admin-main{padding:16px}
.admin-cards{grid-template-columns:repeat(2,1fr)}
.admin-table-wrap{overflow-x:auto}
.admin-user-detail{grid-template-columns:1fr}
}
/* ---- Admin Tab Panel ---- */
.admin-tabs{display:flex;gap:0;border-bottom:2px solid #EEE;margin-bottom:16px}
.atab{padding:9px 18px;font-size:13px;color:#666;cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;transition:all .15s;user-select:none}
.atab:hover{color:#2E7BFF}
.atab.active{color:#2E7BFF;border-bottom-color:#2E7BFF;font-weight:500}
.admin-tab-content{padding:16px 0}
/* ---- Upload Zone ---- */
.upload-zone:hover{border-color:#2E7BFF!important;color:#2E7BFF!important;background:#F0F6FF}
/* ---- Admin Form Group ---- */
.af-group{margin-bottom:14px}
.af-group label{display:block;font-size:12px;font-weight:500;color:#666;margin-bottom:5px}
.af-group input,.af-group textarea,.af-group select{width:100%;padding:7px 10px;border:1px solid #E5E8EB;border-radius:6px;font-size:13px;outline:none;box-sizing:border-box;transition:border-color .15s}
.af-group input:focus,.af-group textarea:focus,.af-group select:focus{border-color:#2E7BFF}
.af-group textarea{min-height:60px;resize:vertical}
/* ---- Admin Button Variants ---- */
.admin-btn-green{background:#00B42A}
.admin-btn-green:hover{background:#009a29}
.admin-btn-red{background:#F53F3F}
.admin-btn-red:hover{background:#d63535}
/* ---- Health Card ---- */
.health-card{padding:14px 18px;border-radius:8px;background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.04)}
/* ---- Review Card ---- */
.review-card{background:#fff;border:1px solid #EEE;border-radius:8px;padding:16px;margin-bottom:12px}
.review-card h4{font-size:14px;color:#333;margin-bottom:8px;line-height:1.5}
.review-card .rc-meta{font-size:11px;color:#999;margin-bottom:8px}
/* ---- Calendar Grid ---- */
.cal-grid{padding:8px 0;border-bottom:1px solid #EEE}
.cal-grid:last-child{border-bottom:none}
/* ===== Shared Components ===== */
.user{font-size:13px;color:#333;font-weight:500}
.spacer{flex:1}
/* ---- Stat Widget ---- */
.stats{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px;margin-bottom:20px}
.stat{background:#fff;border:1px solid #EEE;border-radius:8px;padding:16px;text-align:center}
.stat .value{font-size:22px;font-weight:700;color:#1E293B}
.stat .label{font-size:11px;color:#999;margin-top:4px}
/* ---- Trend Indicator ---- */
.change{display:inline-flex;align-items:center;gap:2px;font-size:12px;font-weight:500}
.change.up{color:#00B42A}
.change.down{color:#F53F3F}
/* ---- Badge ---- */
.badge{display:inline-block;padding:2px 8px;border-radius:3px;font-size:11px;font-weight:500;white-space:nowrap}
.badge-b{background:#E8F0FF;color:#2E7BFF}
.badge-o{background:#FFF4E5;color:#FF7D00}
.badge-g{background:#E8F8EE;color:#00B42A}
.badge-r{background:#FFF0F0;color:#F53F3F}
/* ---- Pagination ---- */
.pgn{display:flex;align-items:center;justify-content:center;gap:6px;margin-top:16px;flex-wrap:wrap}
.pgn button{min-width:32px;height:32px;padding:0 10px;border:1px solid #E5E8EB;border-radius:6px;background:#fff;color:#666;font-size:12px;cursor:pointer;transition:all .15s}
.pgn button:hover{border-color:#2E7BFF;color:#2E7BFF}
.pgn button.active{background:#2E7BFF;border-color:#2E7BFF;color:#fff}
.pgn button.active:hover{background:var(--primary-hover)}
.pgn button:disabled{opacity:.4;cursor:not-allowed}
/* ===== Points Page ===== */
/* ===== Membersihp ===== */
/* ===== AI Chat Mobile ===== */
/* ---- Courses Page (Prototype Aligned) ---- */
.courses-layout{display:flex;gap:24px;align-items:flex-start;margin-top:16px}
.courses-sidebar{width:120px;flex-shrink:0;display:flex;flex-direction:column;gap:2px;background:var(--bg);border-radius:8px;padding:8px;border:1px solid var(--border)}
.cs-tab{padding:10px 14px;border-radius:6px;cursor:pointer;transition:all .15s;text-align:center}
.cs-tab:hover{background:#F5F7FA}
.cs-tab.active{background:#2E7BFF;color:#fff}
.cst-label{font-size:14px;font-weight:600}
.cst-sub{font-size:10px;opacity:.7;margin-top:2px}
.courses-main{flex:1;min-width:0}
.courses-toggle{display:flex;gap:8px;margin-bottom:16px;background:var(--bg);padding:4px;border:1px solid var(--border);border-radius:6px;width:fit-content}
.ct-btn{padding:6px 16px;border-radius:4px;font-size:12px;cursor:pointer;color:var(--sub);transition:all .15s}
.ct-btn.active{background:#2E7BFF;color:#fff}
.cc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.cc-card{background:#fff;border:1px solid var(--border);border-radius:8px;overflow:hidden;cursor:pointer;transition:all .15s;position:relative}
.cc-card:hover{box-shadow:0 4px 12px rgba(0,0,0,.08)}
.cc-thumb{position:relative;height:120px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2)}
.cc-thumb svg{width:40px;height:40px;opacity:.7}
.cc-subject{position:absolute;top:8px;left:8px;padding:2px 8px;border-radius:4px;font-size:11px;color:#fff;background:rgba(0,0,0,.35)}
.cc-body{padding:12px}
.cc-title{font-size:14px;font-weight:600;margin-bottom:8px;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cc-stats{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:6px;font-size:11px;color:var(--sub)}
.cc-stats span{background:#F5F7FA;padding:2px 6px;border-radius:3px;white-space:nowrap}
.cc-progress-bar{height:4px;background:#EEE;border-radius:2px;overflow:hidden}
.cc-progress-bar .bar{height:100%;background:#2E7BFF;border-radius:2px;transition:width .3s}
.cc-dot-menu{position:absolute;top:8px;right:8px;width:24px;height:24px;display:flex;align-items:center;justify-content:center;border-radius:4px;font-size:16px;color:#fff;background:rgba(0,0,0,.25);cursor:pointer;user-select:none;line-height:1}
.cc-dot-menu:hover,.cc-dot-menu.open{background:rgba(0,0,0,.5)}
/* ---- Topics Page (Prototype Aligned) ---- */
.zt-tabs{margin-bottom:16px}
.zt-article-list{display:flex;flex-direction:column;gap:12px}
.za-card{display:flex;flex-direction:column;padding:16px 20px;background:#fff;border:1px solid var(--border);border-radius:8px;cursor:pointer;transition:all .15s}
.za-card:hover{box-shadow:0 2px 8px rgba(0,0,0,.06)}
.za-section{display:inline-block;padding:2px 10px;background:#E8F0FF;color:#2E7BFF;font-size:11px;border-radius:4px;width:fit-content;margin-bottom:8px}
.za-title{font-size:16px;font-weight:600;margin-bottom:6px;line-height:1.3}
.za-summary{font-size:13px;color:#666;line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.za-footer{display:flex;gap:16px;font-size:11px;color:#bbb}
/* ---- Achievement Page (Prototype Aligned) ---- */
.ach-group{margin-bottom:20px}
.ag-header{display:flex;align-items:center;gap:8px;margin-bottom:10px;padding:8px 0;border-bottom:1px solid var(--border)}
.ag-header h3{font-size:15px;font-weight:600}
.ag-header svg{width:20px;height:20px}
.ag-badges{display:flex;flex-wrap:wrap;gap:12px}
/* ---- Doc Page (Prototype Aligned) ---- */
.doc-bar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.doc-list .di-info span{background:#F5F7FA;padding:1px 6px;border-radius:3px;font-size:11px}
/* ---- Responsive ---- */
@media(max-width:768px){.cc-grid{grid-template-columns:repeat(2,1fr)}}
/* ---- Exam Hub Badges ---- */
.ec-tag{display:inline-block;padding:2px 8px;border-radius:3px;font-size:10px;background:#E8F0FF;color:#2E7BFF;margin-left:8px}
.ec-hot{display:inline-block;padding:2px 8px;border-radius:3px;font-size:10px;background:#FFF0F0;color:#F53F3F;margin-left:4px}
.ec-free{display:inline-block;padding:2px 8px;border-radius:3px;font-size:10px;background:#E8F8EE;color:#00B42A;margin-left:4px}
/* ---- Exam Category Bar ---- */
.exam-cat-bar{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}
/* ---- Exam Result Per-Question List ---- */
.er-qlist{display:flex;flex-direction:column;gap:6px}
.er-qi{display:flex;align-items:center;gap:10px;padding:8px 12px;background:#fff;border:1px solid var(--border);border-radius:6px;cursor:pointer;transition:all .15s}
.er-qi:hover{box-shadow:0 2px 6px rgba(0,0,0,.06)}
.er-qi-idx{width:24px;height:24px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:#F5F7FA;font-size:12px;font-weight:600;flex-shrink:0}
.er-qi-q{flex:1;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#333}
.er-qi-a{font-size:12px;font-weight:600;flex-shrink:0;padding:2px 8px;border-radius:3px;background:#F5F7FA}
.er-qi-a.right{color:#00B42A}
.er-qi-a.wrong{color:#F53F3F}
/* ---- Course Detail Training Button ---- */
.sc-train{background:#FFF0F0;color:#F53F3F}
.sc-train:hover{background:#FFE4E4}
/* ---- Modal Overlay ---- */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:9999;display:flex;align-items:center;justify-content:center}
/* ---- Soul Questions Modal (P0: 错因归零) ---- */
.soul-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:9999;display:flex;align-items:center;justify-content:center;animation:fadeIn .2s}
.soul-card{background:#fff;border-radius:12px;width:90%;max-width:460px;max-height:85vh;overflow-y:auto;padding:24px;margin:16px;box-shadow:0 8px 32px rgba(0,0,0,.15)}
.soul-head{font-size:17px;font-weight:700;color:#333;text-align:center;margin-bottom:20px;padding-bottom:12px;border-bottom:2px solid #2E7BFF}
.soul-q{margin-bottom:18px;padding:12px;background:#F7F8FA;border-radius:8px;border-left:3px solid #2E7BFF}
.soul-num{display:inline-block;width:24px;height:24px;line-height:24px;text-align:center;background:#2E7BFF;color:#fff;border-radius:50%;font-size:13px;font-weight:700;margin-right:8px;vertical-align:middle}
.soul-q p{display:inline;font-size:14px;color:#333;line-height:1.6}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
/* ---- Tier Gate Banner (P3: 错因归零) ---- */
.tier-gate{background:linear-gradient(135deg,#F9F0FF,#F5E6FF);border:1px solid #D4B5FF;border-radius:10px;padding:16px 20px;margin-top:16px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.tier-gate .tg-info{flex:1}
.tier-gate .tg-info h4{font-size:14px;font-weight:600;color:#7C3AED;margin-bottom:4px}
.tier-gate .tg-info p{font-size:12px;color:#999;line-height:1.6}
.tg-upgrade-btn{padding:8px 20px;background:#7C3AED;color:#fff;border:none;border-radius:6px;font-size:13px;font-weight:600;cursor:pointer;flex-shrink:0;transition:background .15s}
.tg-upgrade-btn:hover{background:#6D28D9}
.tg-upgrade-btn:active{background:#5B21B6}

/* ---- Core Mother Tags (P3: 刷题标签) ---- */
.bi-tag-core{background:linear-gradient(135deg,#FF7D00,#FF9500);color:#fff;font-size:10px;padding:1px 8px;border-radius:2px;font-weight:600;flex-shrink:0}
.bi-tag-must{background:#F53F3F;color:#fff;font-size:10px;padding:1px 8px;border-radius:2px;font-weight:600;flex-shrink:0}
.bi-tag-high{background:#FF7D00;color:#fff;font-size:10px;padding:1px 8px;border-radius:2px;font-weight:600;flex-shrink:0}

/* ---- Question Detail Error Entry (P3) ---- */
.qd-tier-section{margin-top:20px;padding:16px;border-radius:10px}
.qd-tier-section.tier2{background:#F9F0FF;border:1px solid #D4B5FF}
.qd-tier-section.tier3{background:#F0FDF6;border:1px solid #A7F3D0}
.qd-action-btn{padding:8px 20px;border-radius:6px;font-size:13px;font-weight:600;cursor:pointer;border:none;transition:background .15s}
.qd-action-btn.purple{background:#7C3AED;color:#fff}
.qd-action-btn.purple:hover{background:#6D28D9}
.qd-action-btn.green{background:#059669;color:#fff}
.qd-action-btn.green:hover{background:#047857}

/* ---- Exam Score Error Entry (P3) ---- */
.score-tier-block{margin-top:20px;padding:16px;border-radius:10px;text-align:center}
.score-tier-block .stb-count{font-size:32px;font-weight:700;margin-bottom:4px}
.score-tier-block .stb-label{font-size:13px;color:#666;margin-bottom:12px}
/* ---- Soul Questions Card ---- */
.soul-card{padding:14px 16px;border-radius:8px;border:1px solid #D4B5FF;background:linear-gradient(135deg,#FAF5FF,#F3E8FF);margin-top:10px;animation:fadeIn .3s}
.soul-card .soul-header{font-weight:600;font-size:13px;color:#7C3AED;margin-bottom:12px;display:flex;align-items:center;gap:6px}
.soul-card .soul-item{line-height:1.7;font-size:13px;color:#333;margin-bottom:10px;padding-left:4px}
.soul-card .soul-item:last-child{margin-bottom:0}
.soul-card .soul-item strong{color:#5B21B6;font-size:13px}
.soul-card .soul-meta{font-size:11px;color:#999;margin-top:8px;padding-top:8px;border-top:1px solid #E5D0FF;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.soul-card .soul-meta span{display:inline-flex;align-items:center;gap:3px}
/* Variant Training Card */
.variant-card{margin-top:12px;padding:14px;border-radius:8px;border:1px solid #D1FAE5;background:#F0FDF6}
.variant-card .vc-header{font-weight:600;font-size:13px;color:#059669;margin-bottom:10px;display:flex;align-items:center;gap:6px}
.variant-card .vc-body{line-height:1.7;font-size:13px;color:#444;margin-bottom:10px}
.variant-card .vc-options{display:flex;flex-direction:column;gap:6px}
.variant-card .vc-opt{display:flex;align-items:flex-start;gap:8px;padding:8px 10px;border:1px solid #D1FAE5;border-radius:4px;cursor:pointer;font-size:13px;line-height:1.5;transition:all .15s;background:#fff}
.variant-card .vc-opt:hover{border-color:#059669;background:#ECFDF5}
.variant-card .vc-opt .eo-label{width:22px;height:22px;border-radius:50%;border:1px solid #A7F3D0;display:flex;align-items:center;justify-content:center;font-size:12px;color:#059669;flex-shrink:0}
.variant-card .vc-result{padding:10px;border-radius:6px;font-size:13px;margin-top:10px}
.variant-card .vc-result.correct{background:#D1FAE5;color:#059669}
.variant-card .vc-result.wrong{background:#FEE2E2;color:#F53F3F}
.variant-card .vc-actions{margin-top:10px;display:flex;gap:8px}
/* Explanation block for wrong answer feedback */
.eq-explanation{margin-top:8px;padding:10px 12px;background:#FFF7E6;border-radius:6px;border-left:3px solid #FF7D00;font-size:12px;color:#5C3D00;line-height:1.7}
.soul-trigger-btn{background:linear-gradient(135deg,#7C3AED,#a855f7);color:#fff;border:none;font-size:13px;padding:8px 18px;border-radius:6px;cursor:pointer;font-weight:500;transition:opacity .15s}
.soul-trigger-btn:hover{opacity:.9}
.soul-trigger-btn:active{opacity:.8}
/* ---- Confetti ---- */
.confetti-piece{position:fixed;width:10px;height:10px;border-radius:2px;pointer-events:none;z-index:9999;animation:confetti-fall 2s ease-out forwards}
@keyframes confetti-fall{0%{opacity:1;transform:translateY(0) rotate(0deg)}100%{opacity:0;transform:translateY(100vh) rotate(720deg)}}
/* ---- Tooltip ---- */
.tooltip-tag{cursor:help;border-bottom:1px dotted #999;position:relative}
.tooltip-tag:hover::after{content:attr(data-tip);position:absolute;bottom:120%;left:50%;transform:translateX(-50%);background:#333;color:#fff;font-size:11px;padding:4px 10px;border-radius:4px;white-space:nowrap;z-index:100;pointer-events:none}
/* ---- Responsive ---- */
@media(max-width:768px){.cc-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.cc-grid{grid-template-columns:1fr}.courses-layout{flex-direction:column}.courses-sidebar{width:100%;flex-direction:row;padding:6px;gap:0}.cs-tab{flex:1;padding:8px 6px}.cst-sub{display:none}}