:root{--primary:#2563eb;--primary-dark:#1d4ed8;--bg:#f6f8fb;--card:#fff;--text:#162033;--muted:#6b7280;--border:#e5e7eb;--danger:#ef4444;--ok:#16a34a;--warning:#f59e0b}
*{box-sizing:border-box}body{margin:0;background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--text);line-height:1.6}.mobile-shell{max-width:760px;margin:0 auto;min-height:100vh;background:var(--bg);padding-bottom:74px}.topbar{position:sticky;top:0;z-index:10;background:linear-gradient(135deg,var(--primary),#06b6d4);color:#fff;padding:18px 18px 20px;border-radius:0 0 24px 24px;box-shadow:0 10px 25px rgba(37,99,235,.18)}.topbar h1{font-size:22px;margin:0 0 4px}.topbar p{margin:0;opacity:.9;font-size:13px}.container{padding:16px}.card{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:16px;margin-bottom:14px;box-shadow:0 8px 20px rgba(15,23,42,.05)}.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.menu-card{display:block;text-decoration:none;color:var(--text);background:#fff;border:1px solid var(--border);border-radius:18px;padding:18px;box-shadow:0 8px 20px rgba(15,23,42,.05)}.menu-card.disabled{opacity:.55;filter:grayscale(.15)}.menu-card b{display:block;font-size:18px;margin-bottom:4px}.menu-card span{font-size:13px;color:var(--muted)}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.stat{text-align:center;background:#fff;border:1px solid var(--border);border-radius:16px;padding:12px}.stat strong{font-size:22px;color:var(--primary);display:block}.stat span{font-size:12px;color:var(--muted)}a{color:var(--primary)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:0;border-radius:12px;background:var(--primary);color:#fff;text-decoration:none;padding:11px 16px;font-size:15px;cursor:pointer;min-height:42px}.btn:hover{background:var(--primary-dark)}.btn-block{width:100%}.btn-light{background:#eef4ff;color:var(--primary)}.btn-light:hover{background:#dbeafe}.btn-danger{background:var(--danger)}.btn-ok{background:var(--ok)}.btn-outline{background:#fff;color:var(--primary);border:1px solid #bfdbfe}.form-group{margin-bottom:14px}label{display:block;font-size:14px;margin-bottom:7px;color:#374151}input[type=text],input[type=password],input[type=number],select,textarea{width:100%;border:1px solid var(--border);border-radius:12px;padding:11px 12px;background:#fff;font-size:15px;outline:none}textarea{min-height:100px;resize:vertical}.options{display:grid;gap:10px;margin:14px 0}.option{display:flex;gap:10px;align-items:flex-start;border:1px solid var(--border);border-radius:14px;padding:12px;background:#fff}.option input{margin-top:5px}.option-key{font-weight:700;color:var(--primary);min-width:22px}.question-title{font-size:18px;font-weight:700;line-height:1.55}.badge{display:inline-block;font-size:12px;padding:3px 8px;border-radius:999px;background:#eef2ff;color:#3730a3;margin-right:6px}.badge-ok{background:#dcfce7;color:#166534}.badge-danger{background:#fee2e2;color:#991b1b}.analysis{background:#f8fafc;border-left:4px solid var(--primary);padding:12px;border-radius:10px;color:#334155}.alert{padding:10px 12px;border-radius:12px;margin:10px 0}.alert-success{background:#dcfce7;color:#166534}.alert-error{background:#fee2e2;color:#991b1b}.alert-info{background:#dbeafe;color:#1e40af}.nav-bottom{position:fixed;left:50%;bottom:0;transform:translateX(-50%);max-width:760px;width:100%;background:#fff;border-top:1px solid var(--border);display:grid;grid-template-columns:repeat(5,1fr);padding:7px 0 10px;z-index:20}.nav-bottom a{text-align:center;text-decoration:none;color:#64748b;font-size:12px}.nav-bottom a b{display:block;font-size:18px;color:#334155}.list{display:grid;gap:10px}.list-item{background:#fff;border:1px solid var(--border);border-radius:14px;padding:13px}.muted{color:var(--muted);font-size:13px}.table-mobile{width:100%;border-collapse:collapse}.table-mobile th,.table-mobile td{border-bottom:1px solid var(--border);padding:10px;text-align:left;font-size:14px}.score-big{text-align:center}.score-big strong{display:block;font-size:50px;color:var(--primary);line-height:1}.timer{position:sticky;top:88px;z-index:5;background:#111827;color:#fff;border-radius:999px;padding:8px 12px;text-align:center;font-weight:700;margin-bottom:12px}.auth-panel{padding:24px 18px}.auth-logo{text-align:center;margin:34px 0 22px}.auth-logo h1{margin:0;color:var(--primary)}.auth-logo p{color:var(--muted);margin:6px 0 0}.answer-row{display:flex;justify-content:space-between;gap:10px;align-items:center;flex-wrap:wrap}.empty{text-align:center;color:var(--muted);padding:28px 10px}.pagination{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}.pagination a{padding:6px 10px;border:1px solid var(--border);border-radius:10px;text-decoration:none;background:#fff}.pagination a.active{background:var(--primary);color:#fff;border-color:var(--primary)}@media(max-width:480px){.container{padding:12px}.grid{gap:10px}.topbar{padding:16px}.card{padding:14px}.stats{grid-template-columns:repeat(3,1fr)}.question-title{font-size:17px}}


.dashboard-card{background:linear-gradient(180deg,#ffffff,#f8fbff);border:1px solid #dfe8f6;border-radius:22px;padding:16px 16px 14px;margin-bottom:14px;box-shadow:0 10px 26px rgba(37,99,235,.08)}
.dashboard-head{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;margin-bottom:12px}.dashboard-name{font-size:22px;font-weight:800;line-height:1.2}.dashboard-sub{font-size:13px;color:var(--muted);margin-top:4px}
.dashboard-meta{display:grid;grid-template-columns:1fr;gap:10px}.meta-pill{background:#fff;border:1px solid #e6edf7;border-radius:16px;padding:12px 14px;box-shadow:0 6px 16px rgba(15,23,42,.04)}.meta-pill-action{display:flex;justify-content:space-between;align-items:center;gap:10px}.meta-label{display:block;font-size:12px;color:var(--muted);margin-bottom:2px}.meta-pill strong{font-size:15px;color:#111827}.compact-alert{margin:12px 0 0}.quick-stats.compact-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:12px}.quick-stat{background:#fff;border:1px solid #e6edf7;border-radius:16px;padding:12px 8px;text-align:center}.quick-stat strong{display:block;font-size:21px;color:var(--primary);line-height:1.2}.quick-stat span{display:block;font-size:12px;color:var(--muted);margin-top:2px}
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.feature-card{display:flex;flex-direction:column;align-items:center;justify-content:center;text-decoration:none;color:var(--text);background:#fff;border:1px solid var(--border);border-radius:22px;padding:18px 12px 16px;min-height:152px;box-shadow:0 10px 22px rgba(15,23,42,.06)}.feature-card.disabled{opacity:.56;filter:grayscale(.15)}.feature-title{margin-top:12px;font-size:17px;font-weight:700;color:#111827;text-align:center;line-height:1.35}.icon-box{width:90px;height:90px;border-radius:18px;display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 10px 18px rgba(15,23,42,.12)}.icon-box svg{width:38px;height:38px}.icon-green{background:linear-gradient(135deg,#4ade80,#22c55e)}.icon-blue{background:linear-gradient(135deg,#5b8cff,#2563eb)}.icon-orange{background:linear-gradient(135deg,#ffbd4a,#f59e0b)}.icon-red{background:linear-gradient(135deg,#ff6b5e,#ef4444)}.icon-cyan{background:linear-gradient(135deg,#59d9f6,#06b6d4)}.icon-purple{background:linear-gradient(135deg,#9b5cff,#7c3aed)}
.action-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}.action-btn{font-size:15px}.btn-xs{padding:8px 12px;min-height:36px;border-radius:10px;font-size:14px}
@media(max-width:480px){.mobile-shell{padding-bottom:70px}.topbar{padding:14px 16px 16px;border-radius:0 0 20px 20px}.topbar h1{font-size:20px}.dashboard-card{padding:14px}.dashboard-name{font-size:20px}.feature-grid{gap:12px}.feature-card{min-height:146px;padding:16px 10px 14px}.icon-box{width:84px;height:84px;border-radius:16px}.icon-box svg{width:36px;height:36px}.feature-title{font-size:16px}.action-row{margin-top:12px}}

/* App-style mobile refinements */
body{background:#f3f6fb}.mobile-shell{padding-bottom:92px}.topbar{box-shadow:0 12px 28px rgba(37,99,235,.16)}.topbar h1{letter-spacing:.2px}.container{padding-bottom:18px}
.dashboard-card{position:relative;overflow:hidden}.dashboard-card:before{content:"";position:absolute;right:-34px;top:-48px;width:130px;height:130px;border-radius:50%;background:rgba(37,99,235,.08)}.dashboard-card:after{content:"";position:absolute;right:42px;bottom:-54px;width:120px;height:120px;border-radius:50%;background:rgba(6,182,212,.08)}.dashboard-card>*{position:relative;z-index:1}.meta-pill strong{display:block;max-width:100%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.feature-card{transition:.18s ease;position:relative;overflow:hidden}.feature-card:active{transform:scale(.98)}.feature-card:before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.18),rgba(255,255,255,0));pointer-events:none}.icon-box{position:relative}.icon-box:after{content:"";position:absolute;inset:10px;border-radius:14px;border:1px solid rgba(255,255,255,.22)}.icon-box svg,.nav-icon svg{fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.mode-header{display:flex;align-items:center;justify-content:space-between;gap:12px;border-radius:20px;padding:14px 16px;margin-bottom:14px;color:#fff;box-shadow:0 10px 24px rgba(15,23,42,.1)}.mode-header b{display:block;font-size:20px;line-height:1.2}.mode-header span{display:block;font-size:12px;opacity:.92;margin-top:4px}.mode-header a{white-space:nowrap;background:rgba(255,255,255,.18);color:#fff;text-decoration:none;border:1px solid rgba(255,255,255,.35);border-radius:999px;padding:8px 12px;font-size:13px}.mode-review{background:linear-gradient(135deg,#22c55e,#06b6d4)}.mode-practice{background:linear-gradient(135deg,#2563eb,#7c3aed)}.compact-card{padding:15px}.category-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:14px}.category-card{display:block;text-decoration:none;color:var(--text);background:#fff;border:1px solid var(--border);border-radius:16px;padding:14px;box-shadow:0 6px 16px rgba(15,23,42,.05)}.category-card b{display:block;font-size:15px;line-height:1.35}.category-card span{font-size:12px;color:var(--muted);margin-top:4px;display:block}.question-card{border-radius:20px}.review-options .option{position:relative;padding-right:58px}.option-right{border-color:#86efac;background:#f0fdf4}.option-right .option-key{color:#16a34a}.option em{position:absolute;right:12px;top:50%;transform:translateY(-50%);font-style:normal;font-size:12px;background:#dcfce7;color:#166534;border-radius:999px;padding:3px 8px}.answer-box{background:#eff6ff;border:1px solid #bfdbfe;border-radius:14px;padding:12px 14px;margin:12px 0}.answer-box span{display:block;font-size:12px;color:#1d4ed8}.answer-box strong{font-size:22px;color:#1e40af;letter-spacing:2px}
.nav-bottom{max-width:760px;width:calc(100% - 18px);bottom:9px;border:1px solid rgba(226,232,240,.92);border-radius:22px;padding:8px;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);box-shadow:0 14px 34px rgba(15,23,42,.15);grid-template-columns:repeat(5,1fr);gap:2px}.nav-bottom .nav-item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;text-decoration:none;color:#64748b;font-size:11px;border-radius:16px;min-height:50px}.nav-bottom .nav-icon{width:22px;height:22px;display:flex;align-items:center;justify-content:center}.nav-bottom .nav-icon svg{width:21px;height:21px}.nav-bottom .nav-item.active{background:#eff6ff;color:var(--primary);font-weight:700}.nav-bottom .nav-item.active .nav-icon{color:var(--primary)}
@media(max-width:480px){.mobile-shell{padding-bottom:90px}.dashboard-meta{gap:8px}.quick-stats.compact-stats{gap:8px}.feature-card{min-height:138px}.icon-box{width:76px;height:76px}.icon-box svg{width:34px;height:34px}.feature-title{margin-top:10px}.nav-bottom{width:calc(100% - 16px);bottom:8px;padding:7px;border-radius:20px}.nav-bottom .nav-item{min-height:48px}.mode-header{padding:13px 14px}.mode-header b{font-size:18px}.category-grid{gap:9px}}

/* Compact one-line topbar */
.compact-topbar{padding:10px 14px!important;border-radius:0 0 16px 16px!important;min-height:46px;display:flex;align-items:center;box-shadow:0 8px 18px rgba(37,99,235,.14)!important}
.compact-topbar .topbar-line{width:100%;display:flex;align-items:center;justify-content:space-between;gap:10px;min-width:0}
.compact-topbar h1{font-size:18px!important;line-height:1.2;margin:0!important;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:46%}
.compact-topbar p{font-size:12px!important;line-height:1.2;margin:0!important;opacity:.95;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-align:right;max-width:52%}
@media(max-width:480px){.compact-topbar{padding:9px 12px!important;min-height:42px;border-radius:0 0 14px 14px!important}.compact-topbar h1{font-size:17px!important}.compact-topbar p{font-size:12px!important}.container{padding-top:10px}}


/* unified meta card */
.meta-unified-card{display:flex;align-items:center;justify-content:space-between;gap:12px;background:linear-gradient(135deg,#ffffff,#f8fbff);border:1px solid #e3ebf7;border-radius:18px;padding:14px 14px 13px;box-shadow:0 8px 18px rgba(15,23,42,.05)}
.meta-unified-content{flex:1;min-width:0;display:grid;grid-template-columns:minmax(0,1fr) 1px minmax(0,0.9fr);align-items:center;gap:12px}
.meta-unified-item{min-width:0}.meta-unified-item strong{display:block;font-size:17px;line-height:1.25;color:#111827;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}.meta-unified-sep{width:1px;height:42px;background:linear-gradient(180deg,rgba(203,213,225,.15),rgba(203,213,225,.9),rgba(203,213,225,.15))}
.meta-switch-btn{flex:0 0 auto;background:#eaf1ff;color:var(--primary);box-shadow:none;padding:9px 14px;border-radius:12px;font-weight:700}.meta-switch-btn:hover{background:#dbeafe}
@media(max-width:480px){.meta-unified-card{padding:12px;gap:10px}.meta-unified-content{grid-template-columns:minmax(0,1fr);gap:8px}.meta-unified-sep{display:none}.meta-unified-item strong{font-size:16px}.meta-switch-btn{padding:8px 12px;min-height:34px;align-self:flex-end}}


/* industry only meta card */
.meta-industry-card{padding:13px 14px;background:linear-gradient(135deg,#ffffff,#f7fbff)}
.meta-industry-card .meta-unified-content{display:block;min-width:0}
.meta-industry-card .meta-unified-item strong{font-size:17px;font-weight:800;max-width:100%}
.meta-industry-card .meta-switch-btn{min-width:88px}
@media(max-width:480px){.meta-industry-card{padding:12px}.meta-industry-card .meta-unified-item strong{font-size:16px}.meta-industry-card .meta-switch-btn{min-width:80px}}