:root{--pc-brand:#2f6fe0;--pc-brand-deep:#3a579c;--pc-brand-teal:#1fae91;--pc-ink:#1c2b4a;--aurvis-glass-bg:#ffffffeb;--aurvis-glass-bg-strong:#fff;--aurvis-glass-border:#3a579c1a;--aurvis-glass-shadow:0 1px 2px #2f4f8c0a, 0 10px 28px #2f4f8c12;--aurvis-glass-blur:saturate(140%) blur(12px);--aurvis-hero-grad:radial-gradient(520px 220px at 12% 0%, #ffffff8c, transparent 55%), radial-gradient(420px 200px at 92% 108%, #1fae912e, transparent 52%), linear-gradient(125deg, #d7e6ff 0%, #c8daf8 38%, #d4efe9 100%);--pc-content-w:1120px;--pc-type-scale:1;--pc-space:1;--pc-font-base:clamp(14px, 1.15vw, 16px);--pc-font-title:clamp(18px, 2.2vw, 24px);--pc-space-md:clamp(12px, 2vw, 20px);--keyboard-height:0px;--pc-page-bg:#eef3fb;--pc-card-radius:12px;--pc-card-shadow:0 1px 2px #2f4f8c0a, 0 10px 28px #2f4f8c12;--pc-card-shadow-hover:0 12px 28px #2f6fe024}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-moz-text-size-adjust:100%;text-size-adjust:100%}body{color:var(--semi-color-text-0);background:var(--pc-page-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;max-width:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,Helvetica,Arial,sans-serif;overflow-x:hidden}a{color:inherit;text-decoration:none}.katex-display{overflow:auto hidden}.container{width:100%;max-width:var(--pc-content-w);margin:0 auto;padding:0 24px}@media (max-width:640px){.container{padding:0 16px}}.app-shell{background:var(--pc-page-bg);min-height:100vh;min-height:100dvh}.app-header{z-index:50;background:var(--aurvis-glass-bg);-webkit-backdrop-filter:var(--aurvis-glass-blur);border-bottom:1px solid var(--aurvis-glass-border);position:sticky;top:0}.app-header-inner{max-width:var(--pc-content-w,1120px);align-items:center;gap:24px;height:60px;margin:0 auto;padding:0 20px;display:flex}.app-logo{color:var(--semi-color-text-0);align-items:center;gap:8px;font-size:16px;font-weight:700;text-decoration:none;display:flex}.app-logo .mark{background:linear-gradient(135deg, var(--semi-color-primary), var(--semi-color-secondary));color:#fff;border-radius:6px;place-items:center;width:30px;height:30px;font-size:15px;display:grid}.app-nav{flex:1;gap:2px;display:flex}.app-nav a{color:var(--semi-color-text-1);border-radius:6px;padding:8px 14px;font-size:14px;font-weight:500;text-decoration:none;transition:all .15s}.app-nav a:hover{color:var(--semi-color-primary)}.app-nav a.active{background:var(--semi-color-primary-light-default);color:var(--semi-color-primary);font-weight:600}.app-header .right{align-items:center;gap:14px;display:flex}.app-bell{cursor:pointer;width:32px;height:32px;color:var(--semi-color-text-2);border-radius:6px;place-items:center;display:grid;position:relative}.app-bell:hover{background:var(--semi-color-bg-1)}.app-bell .dot{background:var(--semi-color-danger);border-radius:50%;width:7px;height:7px;position:absolute;top:5px;right:6px}.app-avatar{color:#fff;cursor:pointer;border-radius:50%;place-items:center;width:34px;height:34px;font-size:14px;font-weight:600;display:grid}.app-main{max-width:var(--pc-content-w);padding:calc(24px * var(--pc-space)) 20px calc(48px * var(--pc-space));margin:0 auto}.app-hero{border-radius:var(--pc-card-radius);color:var(--semi-color-text-1);background:var(--aurvis-hero-grad);border:1px solid var(--aurvis-glass-border);box-shadow:var(--pc-card-shadow);padding:26px 28px;position:relative;overflow:hidden}.app-hero h2{font-size:calc(20px * var(--pc-type-scale));margin-bottom:6px}.app-hero>p{opacity:.9;font-size:13px}.app-hero .pick{cursor:pointer;color:#fff;background:#ffffff24;border:1px solid #ffffff47;border-radius:9px;align-items:center;gap:12px;margin-top:16px;padding:12px 16px;text-decoration:none;transition:background .15s;display:flex}.app-hero .pick:hover{background:#ffffff38}.app-hero .pick .ic{background:#ffffff38;border-radius:6px;flex-shrink:0;place-items:center;width:38px;height:38px;font-size:18px;display:grid}.app-hero .pick .info{flex:1}.app-hero .pick .t{font-size:14px;font-weight:600}.app-hero .pick .d{opacity:.88;margin-top:2px;font-size:12px}.app-hero .pick .go{white-space:nowrap;font-size:13px;font-weight:600}.app-hero .hero-pick{background:#ffffff24;border:1px solid #ffffff47;border-radius:9px;align-items:center;gap:12px;margin-top:16px;padding:12px 16px;display:flex}.app-hero .hero-pick .ic{background:#ffffff38;border-radius:6px;flex-shrink:0;place-items:center;width:38px;height:38px;font-size:18px;display:grid}.app-hero .hero-pick .info{flex:1}.app-hero .hero-pick .t{font-size:14px;font-weight:600;display:block}.app-hero .hero-pick .d{opacity:.88;margin-top:2px;font-size:12px;display:block}.app-hero .stat{gap:30px;margin-top:18px;display:flex}.app-hero .stat b{font-size:22px;display:block}.app-hero .stat span{opacity:.85;font-size:12px}.app-card{background:var(--aurvis-glass-bg-strong);border:1px solid var(--aurvis-glass-border);border-radius:var(--pc-card-radius);box-shadow:var(--pc-card-shadow);padding:18px}.app-section-title{color:var(--semi-color-text-0);align-items:center;gap:10px;margin-bottom:12px;font-size:15px;font-weight:700;display:inline-flex}.app-section-title:before{content:"";background:var(--semi-color-primary);border-radius:2px;flex-shrink:0;width:3px;height:1em}.app-grid-4{grid-template-columns:repeat(4,1fr);gap:16px;display:grid}.func-card{border:1px solid var(--aurvis-glass-border);border-radius:var(--pc-card-radius);background:var(--aurvis-glass-bg-strong);box-shadow:var(--pc-card-shadow);cursor:pointer;color:inherit;padding:18px;text-decoration:none;transition:transform .18s,box-shadow .18s,border-color .18s;display:block}.func-card:hover{border-color:var(--semi-color-primary);box-shadow:var(--pc-card-shadow-hover);transform:translateY(-2px)}.func-card .ic{border-radius:6px;place-items:center;width:42px;height:42px;margin-bottom:12px;font-size:20px;display:grid}.func-card h4{color:var(--semi-color-text-0);margin-bottom:4px;font-size:15px}.func-card p{color:var(--semi-color-text-2);font-size:12px}.app-item{border:1px solid var(--aurvis-glass-border);border-radius:var(--pc-card-radius);box-shadow:var(--pc-card-shadow);background:#fff;align-items:center;gap:14px;margin-bottom:12px;padding:16px 18px;transition:transform .15s,box-shadow .15s;display:flex}.app-item:hover{box-shadow:var(--pc-card-shadow-hover);transform:translateY(-1px)}.app-item .p-ic{background:var(--semi-color-primary-light-default);width:46px;height:46px;color:var(--semi-color-primary);border-radius:6px;flex-shrink:0;place-items:center;font-size:20px;display:grid}.app-item .info{flex:1;min-width:0}.app-item .info h4{color:var(--semi-color-text-0);font-size:15px}.app-item .info .meta{color:var(--semi-color-text-2);flex-wrap:wrap;gap:14px;margin-top:4px;font-size:12px;display:flex}.rank-row{border-bottom:1px solid var(--semi-color-bg-1);align-items:center;gap:12px;padding:10px 4px;display:flex}.rank-row:last-child{border-bottom:none}.rank-num{text-align:center;width:26px;color:var(--semi-color-text-2);font-variant-numeric:tabular-nums;font-weight:700}.rank-num.top{color:var(--semi-color-warning)}.rank-avatar{color:#fff;border-radius:50%;flex-shrink:0;place-items:center;width:32px;height:32px;font-size:13px;font-weight:600;display:grid}.c-blue{color:var(--semi-color-primary)}.c-green{color:var(--semi-color-success)}.c-orange{color:var(--semi-color-warning)}.c-red{color:var(--semi-color-danger)}.c-purple{color:var(--semi-color-tertiary)}.lib-row{scrollbar-width:none;flex-wrap:wrap;align-items:center;gap:10px;min-width:0;max-width:100%;margin-bottom:4px;display:flex}.lib-row::-webkit-scrollbar{display:none}.lib-label{color:var(--semi-color-text-2);flex-shrink:0;font-size:13px}.lib-chip{border:1px solid var(--aurvis-glass-border);color:var(--semi-color-text-1);cursor:pointer;background:#fff;border-radius:999px;padding:6px 14px;font-family:inherit;font-size:13px;transition:background .15s,border-color .15s,color .15s,box-shadow .15s}.lib-chip:hover{color:var(--semi-color-primary);background:#fff;border-color:#2f6fe047;box-shadow:0 4px 12px #2f6fe01a}.lib-chip.active{color:var(--semi-color-primary);background:var(--semi-color-primary-light-default);box-shadow:none;border-color:#0000;font-weight:600}.random-setup-card{margin-top:12px;padding:16px 18px}.random-setup-title{align-items:baseline;gap:10px;margin:0;font-size:15px;font-weight:650;display:flex}.random-setup-title-hint{color:var(--semi-color-text-3);font-size:12px;font-weight:500}.random-setup-foot{color:var(--semi-color-text-3);margin:6px 0 0;font-size:12px;line-height:1.5}.random-setup-chips{flex-wrap:wrap;gap:8px;margin-top:12px;display:flex}.random-setup-type-n{color:var(--semi-color-text-3);font-variant-numeric:tabular-nums;margin-left:4px;font-size:12px}.lib-chip.active .random-setup-type-n{color:var(--semi-color-primary)}.random-setup-scopes{gap:8px;margin-top:10px;display:grid}.random-setup-scope{text-align:left;border:1px solid var(--aurvis-glass-border);cursor:pointer;font:inherit;background:#fff;border-radius:12px;gap:2px;padding:10px 12px;display:grid}.random-setup-scope.is-on{background:var(--semi-color-primary-light-default);border-color:#0000}.random-setup-scope-title{color:var(--semi-color-text-0);font-size:14px;font-weight:600}.random-setup-scope.is-on .random-setup-scope-title{color:var(--semi-color-primary)}.random-setup-scope-desc{color:var(--semi-color-text-3);font-size:12px}.mixed-ratio{margin-top:14px}.mixed-ratio-legend{color:var(--semi-color-text-2);flex-wrap:wrap;gap:12px 16px;font-size:12px;display:flex}.mixed-ratio-legend i{vertical-align:0;border-radius:50%;width:8px;height:8px;margin-right:6px;display:inline-block}.mixed-ratio-legend i.is-undone,.mixed-ratio-seg.is-undone{background:#2f6fe0}.mixed-ratio-legend i.is-wrong,.mixed-ratio-seg.is-wrong{background:#e5484d}.mixed-ratio-legend i.is-done,.mixed-ratio-seg.is-done{background:#2f9e6a}.mixed-ratio-track{cursor:pointer;height:28px;margin:12px 8px 4px;position:relative}.mixed-ratio-fill{border-radius:999px;height:16px;display:flex;position:absolute;top:6px;left:0;right:0;overflow:hidden}.mixed-ratio-seg{min-width:2px;height:100%;display:block}.mixed-ratio-thumb{cursor:grab;background:#fff;border:0;border-radius:50%;width:28px;height:28px;margin:0;padding:0;position:absolute;top:50%;transform:translate(-50%,-50%);box-shadow:0 1px 4px #0f172a2e}.mixed-ratio-thumb:after{content:"";border-radius:50%;position:absolute;inset:6px}.mixed-ratio-thumb.is-undone:after{background:#2f6fe0}.mixed-ratio-thumb.is-done:after{background:#2f9e6a}.random-setup-footer{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.random-setup-summary{color:var(--semi-color-text-2);font-size:13px;line-height:1.55}.random-setup-actions{gap:8px;display:flex}.lib-tabs{border-bottom:2px solid var(--semi-color-border);margin:20px 0 16px;display:flex}.lib-tabs .tab{cursor:pointer;color:var(--semi-color-text-2);border-bottom:2px solid #0000;margin-bottom:-2px;padding:10px 22px;font-size:14px;font-weight:500}.lib-tabs .tab.active{color:var(--semi-color-primary);border-bottom-color:var(--semi-color-primary);font-weight:600}.lib-grid{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.lib-card{border:1px solid var(--aurvis-glass-border);border-radius:var(--pc-card-radius);background:var(--aurvis-glass-bg-strong);color:inherit;box-shadow:var(--pc-card-shadow);padding:18px;text-decoration:none;transition:transform .18s,box-shadow .18s,border-color .18s;display:block}.lib-card:hover{box-shadow:var(--pc-card-shadow-hover);border-color:#0000;transform:translateY(-2px)}.lib-card .t{color:var(--semi-color-text-0);font-size:15px;font-weight:700}.lib-card .d{color:var(--semi-color-text-2);margin-top:4px;font-size:12px}.lib-card .chips{flex-wrap:wrap;gap:6px;margin-top:12px;display:flex}.lib-card .chip{background:var(--semi-color-primary-light-default);color:var(--semi-color-primary);border-radius:4px;padding:3px 8px;font-size:11px}.lib-card .b{color:var(--semi-color-text-2);border-top:1px solid var(--semi-color-border);justify-content:space-between;margin-top:14px;padding-top:12px;font-size:12px;display:flex}.lib-card .b .go{color:var(--semi-color-primary);font-weight:600}.tab-label{flex-direction:column;justify-content:center;align-items:center;gap:4px;line-height:1.2;display:inline-flex}.tab-label .semi-icon{font-size:18px}.tab-label-text{white-space:nowrap;display:inline-block}.picker-overlay{z-index:1100;-webkit-backdrop-filter:saturate(160%)blur(6px);background:#10183073;justify-content:center;align-items:center;padding:24px;animation:.18s ease-out pickerFadeIn;display:flex;position:fixed;inset:0}@keyframes pickerFadeIn{0%{opacity:0}to{opacity:1}}.picker-panel{background:var(--semi-color-bg-1);border:1px solid var(--semi-color-border);isolation:isolate;z-index:1;width:100%;max-width:880px;max-height:calc(100vh - 48px);border-radius:12px;flex-direction:column;max-height:calc(100dvh - 48px);animation:.22s cubic-bezier(.2,.9,.3,1) pickerSlideUp;display:flex;position:relative;overflow:hidden;box-shadow:0 20px 60px #00000040}@keyframes pickerSlideUp{0%{opacity:0;transform:translateY(12px)scale(.98)}to{opacity:1;transform:translateY(0)scale(1)}}.picker-header{border-bottom:1px solid var(--semi-color-border);justify-content:space-between;align-items:center;gap:8px;padding:18px 24px;display:flex}.picker-back{cursor:pointer;color:var(--semi-color-text-1);background:0 0;border:none;flex-shrink:0;padding:4px 6px;font-size:18px;line-height:1}.picker-back:hover{color:var(--semi-color-primary)}.picker-title{color:var(--semi-color-text-0);flex:1;min-width:0;font-size:18px;font-weight:700}.picker-close{color:var(--semi-color-text-2);cursor:pointer;background:0 0;border:none;border-radius:6px;justify-content:center;align-items:center;width:32px;height:32px;font-size:24px;line-height:1;transition:background .15s;display:inline-flex}.picker-close:hover{background:var(--semi-color-fill-0);color:var(--semi-color-text-1)}.picker-body{flex:1;grid-template-columns:1fr 1fr;gap:14px;padding:20px 24px 24px;display:grid;overflow-y:auto}.picker-panel--shelf{max-width:720px}.picker-body.picker-bookshelf{background:#fff;flex-direction:column;gap:16px;padding:20px 24px;display:flex}.picker-empty{text-align:center;color:var(--semi-color-text-2);padding:36px 12px;font-size:14px}.picker-shelf-row{grid-template-columns:repeat(auto-fill,minmax(112px,1fr));align-items:stretch;gap:12px;display:grid}.picker-shelf-flat{flex-direction:column;gap:18px;display:flex}.picker-cert-group{flex-direction:column;gap:10px;display:flex}.picker-cert-head{align-items:center;gap:10px;padding:0 2px;display:flex}.picker-cert-head-mark{color:#fff;border-radius:8px;flex-shrink:0;place-items:center;width:32px;height:32px;font-size:15px;font-weight:800;display:grid;box-shadow:0 2px 8px #2f4f8c1f}.picker-cert-head-text{flex-direction:column;gap:2px;min-width:0;display:flex}.picker-cert-head-name{color:var(--semi-color-text-0);text-overflow:ellipsis;white-space:nowrap;font-size:14px;font-weight:700;overflow:hidden}.picker-cert-head-meta{color:var(--semi-color-text-2);font-size:12px}.picker-book{border:1px solid var(--semi-color-border);background:var(--semi-color-bg-1);cursor:pointer;width:100%;min-height:100%;font:inherit;color:inherit;box-sizing:border-box;border-radius:12px;flex-direction:column;align-items:center;gap:10px;padding:14px 10px;transition:border-color .15s,box-shadow .15s,transform .15s;display:flex}.picker-book:hover{box-shadow:var(--pc-card-shadow-hover);border-color:#0000;transform:translateY(-2px)}.picker-book.on{border-color:var(--semi-color-primary);box-shadow:0 0 0 2px #2f6fe029}.picker-book-cover{color:#fff;border:1px solid #ffffff59;border-radius:8px;flex-shrink:0;place-items:center;width:72px;height:96px;display:grid;position:relative;overflow:hidden;box-shadow:inset 2px 0 #ffffff29,0 6px 14px #2f4f8c24}.picker-book-spine{pointer-events:none;background:linear-gradient(90deg,#0000002e,#ffffff1a 60%,#0000000f);width:7px;position:absolute;top:0;bottom:0;left:0}.picker-book-mark{letter-spacing:-.04em;text-shadow:0 2px 8px #00000038;font-size:28px;font-weight:800}.picker-book-text{flex-direction:column;flex:1;align-items:center;gap:6px;width:100%;min-width:0;display:flex}.picker-book-name{width:100%;color:var(--semi-color-text-0);text-align:center;-webkit-line-clamp:2;word-break:break-word;-webkit-box-orient:vertical;font-size:13px;font-weight:650;line-height:1.35;display:-webkit-box;overflow:hidden}.picker-book-meta{max-width:100%;color:var(--semi-color-text-2);background:var(--semi-color-fill-0);white-space:nowrap;text-overflow:ellipsis;border:0;border-radius:999px;padding:2px 8px;font-size:11px;font-weight:500;line-height:1.4;overflow:hidden}.picker-book-meta.is-platform{color:var(--semi-color-primary);background:var(--semi-color-primary-light-default)}.picker-book.on .picker-book-name{color:var(--semi-color-primary)}.picker-footer{border-top:1px solid var(--semi-color-border);justify-content:flex-start;align-items:center;padding-top:12px;display:flex}.picker-footer a{color:var(--semi-color-primary);font-size:13px;font-weight:500;text-decoration:none}.picker-footer a:hover{text-decoration:underline}.picker-body.picker-list{grid-template-columns:1fr;gap:8px}.picker-subject{text-align:left;border:1px solid var(--aurvis-glass-border);cursor:pointer;width:100%;font:inherit;color:inherit;background:#fff;border-radius:10px;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;transition:border-color .15s,background .15s,box-shadow .15s;display:flex}.picker-subject:hover{border-color:var(--semi-color-primary);box-shadow:var(--pc-card-shadow)}.picker-subject.on{border-color:var(--semi-color-primary);background:var(--semi-color-primary-light-default)}.picker-subject-name{color:var(--semi-color-text-0);font-size:15px;font-weight:600}.picker-subject-meta{color:var(--semi-color-primary);background:var(--semi-color-primary-light-default);border-radius:999px;flex-shrink:0;padding:2px 8px;font-size:12px}.custom-tabs-nav{border-bottom:1px solid var(--semi-color-border);align-items:center;gap:8px;display:flex;position:relative}.custom-tabs-arrow{cursor:pointer;width:28px;height:28px;color:var(--semi-color-text-2);background:0 0;border:none;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;transition:background .15s;display:inline-flex}.custom-tabs-arrow:hover{background:var(--semi-color-fill-0);color:var(--semi-color-text-1)}.custom-tabs-list{scrollbar-width:none;-ms-overflow-style:none;flex:1;gap:4px;display:flex;overflow-x:auto}.custom-tabs-list::-webkit-scrollbar{display:none}.custom-tabs-item{cursor:pointer;color:var(--semi-color-text-2);border-bottom:2px solid #0000;flex-shrink:0;margin-bottom:-1px;padding:12px 16px;transition:color .15s,border-color .15s}.custom-tabs-item:hover{color:var(--semi-color-text-1)}.custom-tabs-item.active{color:var(--semi-color-primary);border-bottom-color:var(--semi-color-primary);font-weight:500}.custom-tabs-item.active .tab-label{color:var(--semi-color-primary)}.market-card{padding:22px}.market-head{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.market-meta{flex-shrink:0;gap:24px;display:flex}.market-meta>div{text-align:center}.market-meta b{color:var(--semi-color-text-0);font-size:18px;display:block}.market-meta span{color:var(--semi-color-text-2);font-size:12px}.market-plans{grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px;display:grid}.plan-row{border:1px solid var(--aurvis-glass-border);box-shadow:var(--pc-card-shadow);background:#fff;border-radius:12px;align-items:center;gap:12px;padding:14px 16px;transition:transform .18s,box-shadow .18s,border-color .18s;display:flex}.plan-row:hover{border-color:var(--semi-color-primary);box-shadow:var(--pc-card-shadow-hover);transform:translateY(-1px)}.plan-dur{flex-direction:column;flex:1;display:flex}.dur-label{color:var(--semi-color-text-0);font-size:14px;font-weight:600}.dur-day{color:var(--semi-color-text-3);margin-top:2px;font-size:11px}.plan-price{color:var(--semi-color-primary);align-items:baseline;margin-right:4px;display:flex}.plan-price .currency{margin-right:2px;font-size:14px}.plan-price .num{font-size:22px;font-weight:700;line-height:1}.report-toolbar{justify-content:flex-start;margin-bottom:12px;display:flex}.report-range{border:1px solid var(--aurvis-glass-border);width:100%;max-width:360px;box-shadow:var(--pc-card-shadow);box-sizing:border-box;background:#fff;border-radius:12px;gap:4px;padding:4px;display:flex}.report-range button{min-width:0;color:var(--semi-color-text-2);cursor:pointer;touch-action:manipulation;white-space:nowrap;background:0 0;border:0;border-radius:8px;flex:1 1 0;padding:8px 10px;font-size:13px;font-weight:500;line-height:1.2}.report-range button.on{background:var(--semi-color-primary);color:#fff;font-weight:600}.report-top{grid-template-columns:1fr 1fr;gap:16px;display:grid}.report-diag{flex-direction:column;min-height:160px;padding:22px 28px 24px;display:flex}.report-diag-body{flex-direction:column;align-items:flex-start;width:100%;max-width:36rem;margin:0 auto;display:flex}.report-diag-body 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