:root{--mk-purple: #1d4332;--mk-purple-light: color-mix(in srgb, var(--mk-purple) 75%, white);--mk-purple-deep: color-mix(in srgb, var(--mk-purple) 82%, black);--mk-purple-bg: color-mix(in srgb, var(--mk-purple) 9%, white);--mk-text: #000000;--mk-text-secondary: #6b6b6b;--mk-muted: #999999;--mk-red: #ff0000;--mk-red-soft: #ff6b56;--mk-red-pale: #ff6c63;--mk-red-bg: #ffedec;--mk-red-grad: linear-gradient(90deg, #ff7465, #ff4b40);--mk-red-grad-soft: linear-gradient(90deg, #ff8d80, #ff574d);--mk-green: #8fdb38;--mk-green-deep: #5ea82c;--mk-video-blue: #4c98c8;--mk-input-blue: #418ec8;--mk-highlight: #28acff;--mk-bg: #ffffff;--mk-panel-1: #f1f1f1;--mk-panel-2: #f3f3f3;--mk-bar-gray: #dbdee2;--mk-bar-gray-2: #e8ecf0;--mk-bar-gray-3: #efefef;--mk-border: #e6e6e6;--mk-input-border: #bfbfbf;--exam-text: #383838;--exam-text-secondary: #565656;--exam-gray: #efefef;--exam-border: #ddd;--exam-btn-bg: #faf6f6;--exam-highlight: #28acff;--exam-red: #ff4b40;--exam-timer-red: #ff0000;--exam-black: #383838;--mk-card: #ffffff;--mk-amber: #e6a23c;--hp-banner-bg: #1d4332;--hp-banner-text: #ffffff;--hp-banner-sub: #a8a8bc;--hp-banner-num: #ff7800}*{margin:0;padding:0;box-sizing:border-box}html,body,#root{height:100%}body{font-family:Helvetica Neue,Helvetica,Roboto,Arial,微软雅黑,Microsoft YaHei,PingFang SC,sans-serif;color:var(--mk-text);background:#fff;-webkit-font-smoothing:antialiased}button{font-family:inherit}.mk-nav{background:var(--mk-purple);color:#fff;height:60px;display:flex;align-items:center;padding:0 24px;gap:28px;-webkit-user-select:none;user-select:none}.mk-nav .logo{font-size:17px;font-weight:600;letter-spacing:1px;cursor:pointer;white-space:nowrap;display:flex;align-items:center;gap:8px}.mk-nav .logo img{max-height:28px;max-width:180px;display:block}.mk-nav .nav-menu{display:flex;gap:22px;font-size:14px;flex:1}.mk-nav .nav-menu span{cursor:pointer;padding:4px 2px;opacity:.92;white-space:nowrap}.mk-nav .nav-menu span.active{opacity:1;font-weight:600;border-bottom:2px solid #fff}.mk-nav .nav-right{display:flex;align-items:center;gap:16px;font-size:13px;white-space:nowrap}.mk-nav .nav-right span{cursor:pointer;opacity:.92}.mk-page{max-width:1080px;margin:0 auto;padding:20px 24px 40px}.mk-breadcrumb{font-size:13px;color:var(--mk-muted);margin-bottom:16px}.mk-breadcrumb b{color:var(--mk-text);font-weight:500}.mk-legend{display:flex;gap:20px;font-size:12px;color:var(--mk-muted);margin-bottom:18px;align-items:center}.mk-legend-item{display:flex;align-items:center;gap:5px}.mk-legend-dot{width:14px;height:14px;border-radius:3px;display:inline-block}.mk-book-card{background:var(--mk-card);border-radius:10px;margin-bottom:16px;overflow:hidden;border:1px solid var(--mk-border)}.mk-book-head{padding:14px 20px;background:var(--mk-bg);border-bottom:1px solid var(--mk-border);display:flex;align-items:center;gap:10px}.mk-book-head .book-name{font-size:16px;font-weight:600}.mk-book-head .book-suite{font-size:12px;color:var(--mk-purple);background:var(--mk-purple-bg);padding:2px 8px;border-radius:4px}.mk-test-row{display:flex;align-items:center;padding:0 20px;min-height:52px;border-bottom:1px solid #f2f2f2}.mk-test-row:last-child{border-bottom:none}.mk-test-name{font-weight:600;font-size:14px;min-width:80px}.mk-subjects{display:flex;gap:10px;flex:1}.mk-subject-item{display:flex;align-items:center;gap:7px;padding:6px 14px;border-radius:20px;font-size:13px;cursor:pointer;border:1px solid var(--mk-border);transition:all .15s;background:#fff}.mk-subject-item:hover{border-color:var(--mk-purple-light);color:var(--mk-purple)}.mk-subject-item .status-icon{width:8px;height:8px;border-radius:50%;background:#d0d0d0}.mk-subject-item.doing .status-icon{background:var(--mk-amber)}.mk-subject-item.done .status-icon{background:var(--mk-green)}.mk-subject-item.disabled{color:var(--mk-muted);cursor:default;opacity:.7}.mk-modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;display:flex;align-items:center;justify-content:center;z-index:1000}.mk-mode-modal{width:833px;max-width:94vw;min-height:482px;background:var(--mk-bg);border:1px solid rgba(0,0,0,.2);border-radius:4.2px;padding:15px 15px 25px;position:relative}.mk-mode-modal .modal-close{position:absolute;top:14px;right:16px;width:28px;height:28px;border:none;background:transparent;font-size:22px;color:var(--mk-muted);cursor:pointer;line-height:1}.mk-mode-modal .modal-close:hover{color:var(--mk-text)}.mk-mode-title{font-size:20px;font-weight:700;text-align:center;color:var(--mk-text);margin-bottom:24px}.mk-mode-cards{display:flex;justify-content:center;gap:12px}.mk-mode-card{width:333px;max-width:calc((100% - 24px) / 3);height:344px;background:#fff;border-radius:15px;padding:0 0 22px;display:flex;flex-direction:column;align-items:center;border:none;transition:box-shadow .15s;overflow:hidden}.mk-mode-card:hover{box-shadow:0 4px 16px #0000001a}.mk-mode-card .mode-pic{width:100%;height:218px;object-fit:cover;display:block}.mk-mode-card .mode-name{font-size:15px;font-weight:700;color:var(--mk-text);margin:14px 0 6px}.mk-mode-card .mode-desc{font-size:12px;font-weight:400;color:#adacaa;line-height:1.6;text-align:center;padding:0 14px;flex:1}.mk-mode-card .mode-btn{width:80px;height:30px;border:none;border-radius:6px;background:var(--mk-red-grad-soft);color:#fff;font-size:12px;cursor:pointer;transition:opacity .15s}.mk-mode-card .mode-btn:hover{opacity:.9}.mk-choose-modal{width:460px;max-width:92vw;background:#fff;border-radius:15px;padding:34px 30px 30px;text-align:center}.mk-choose-modal .choose-title{font-size:17px;font-weight:600;color:var(--mk-text);margin-bottom:10px}.mk-choose-modal .choose-desc{font-size:13.5px;color:var(--mk-text-secondary);line-height:1.7;margin-bottom:26px}.mk-choose-btns{display:flex;justify-content:center;align-items:center;gap:24px}.mk-choose-cancel{width:140px;height:45px;border:none;border-radius:8px;background:var(--mk-red-bg);color:var(--mk-red-soft);font-size:15px;font-weight:700;cursor:pointer;transition:opacity .15s}.mk-choose-confirm{width:158px;height:45px;border:none;border-radius:8px;background:var(--mk-red-grad);color:#fff;font-size:15px;font-weight:700;cursor:pointer;transition:opacity .15s}.mk-choose-cancel:hover,.mk-choose-confirm:hover{opacity:.88}.mk-phone-modal{width:508px;max-width:92vw;background:#fff;border-radius:28px;padding:36px 34px 32px;text-align:center}.mk-phone-modal .phone-icon{width:64px;height:64px;margin:0 auto 16px;border-radius:50%;background:var(--mk-red-bg);display:flex;align-items:center;justify-content:center;font-size:30px}.mk-phone-modal .phone-title{font-size:22.4px;font-weight:700;color:var(--mk-text);margin-bottom:12px}.mk-phone-modal .phone-title .hl{color:var(--mk-red)}.mk-phone-modal .phone-desc{font-size:14.56px;color:var(--mk-text);line-height:1.8;margin-bottom:26px;white-space:pre-line}.mk-phone-skip{display:block;margin-top:18px;background:none;border:none;padding:0;font-size:14px;color:var(--mk-red);cursor:pointer;text-decoration:none}.mk-phone-confirm{width:271px;height:50px;border:none;border-radius:20px;background:var(--mk-red);color:#fff;font-size:16px;font-weight:600;cursor:pointer;transition:opacity .15s}.mk-phone-confirm:hover{opacity:.9}.mk-confirm-page{min-height:100vh;background:#fff;display:flex;flex-direction:column;align-items:center}.mk-confirm-topbar{width:100%;height:44px;background:var(--mk-purple);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 24px;-webkit-user-select:none;user-select:none}.mk-confirm-topbar .tb-left{font-size:14px;opacity:.95}.mk-confirm-topbar .tb-close{font-size:20px;cursor:pointer;line-height:1;background:none;border:none;color:#fff}.mk-confirm-body{flex:1;width:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 20px}.mk-confirm-step-label{font-size:15px;color:var(--mk-text);margin-bottom:12px;text-align:center}.mk-confirm-input{width:242px;height:38px;border:1px solid var(--mk-input-border);border-radius:3px;padding:1px 2px 1px 8px;font-size:14px;outline:none;font-family:inherit;color:var(--mk-text);transition:border-color .15s}.mk-confirm-input:focus{border-color:var(--mk-purple)}.mk-login-btn{width:64px;height:38px;border:none;border-radius:4px;background:#dfdfdf;color:#fff;font-size:13px;cursor:default;margin-top:16px;transition:background .15s}.mk-login-btn.active{background:var(--mk-purple);cursor:pointer}.mk-login-btn.active:hover{background:var(--mk-purple-deep)}.mk-confirm-next{width:102px;height:50px;border:none;border-radius:4px;background:var(--mk-purple);color:#fff;font-size:15px;cursor:pointer;margin-top:24px;transition:background .15s}.mk-confirm-next:hover{background:var(--mk-purple-deep)}.mk-confirm-error{color:var(--mk-red);font-size:12.5px;margin-top:10px;min-height:18px}.mk-confirm-info{width:340px;border:1px solid var(--mk-input-border);border-radius:6px;padding:16px 20px;margin-bottom:28px;background:#fafaff;text-align:left}.mk-confirm-info .info-title{font-size:15px;font-weight:600;color:var(--mk-text);margin-bottom:10px}.mk-confirm-info .info-row{display:flex;justify-content:space-between;font-size:13.5px;color:#666;padding:3px 0}.mk-confirm-info .info-row b{color:var(--mk-text);font-weight:500;font-family:SF Mono,Consolas,monospace}.mk-confirm-field-label{font-size:16px;color:#212529;margin-bottom:8px}.mk-confirm-hint{font-size:13px;color:#999;margin-top:8px;min-height:18px}.mk-confirm-warning{color:#ff6c63;font-size:15px;margin-top:6px}.mk-instructions{min-height:100vh;background:#fff;display:flex;flex-direction:column;align-items:center}.mk-ns-steps{width:100%;max-width:1107px;display:flex;flex-direction:column;margin-bottom:28px}.mk-ns-step{background:var(--mk-panel-2);border-radius:4px;margin-bottom:12px;overflow:hidden}.mk-ns-step .ns-head{padding:22px 63px;display:flex;align-items:center;gap:14px;cursor:pointer;-webkit-user-select:none;user-select:none}.mk-ns-step .ns-title{font-size:28px;font-weight:700;color:var(--mk-text);flex:1}.mk-ns-step .ns-status{font-size:14px;font-weight:500;white-space:nowrap}.mk-ns-step .ns-status.done{color:var(--mk-green)}.mk-ns-step .ns-status.todo{color:var(--mk-red)}.mk-ns-step .ns-timing{font-size:14px;color:var(--mk-text-secondary);margin-top:6px;padding-left:77px}.mk-ns-step .ns-arrow{font-size:20px;color:var(--mk-muted);transition:transform .2s}.mk-ns-step.open .ns-arrow{transform:rotate(90deg)}.mk-ns-step .ns-body{padding:0 63px 28px}.mk-instructions-topbar{width:100%;height:44px;background:var(--mk-purple);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 24px;-webkit-user-select:none;user-select:none}.mk-instructions-main{width:100%;max-width:1107px;padding:28px 24px 40px;display:flex;flex-direction:column;align-items:center}.mk-rules-video-wrap{width:702px;max-width:96vw;height:402px;background:var(--mk-panel-1);border-radius:4px;display:flex;align-items:center;justify-content:center;position:relative;margin-bottom:28px;overflow:hidden}.mk-rules-video-wrap video{width:100%;height:100%;object-fit:contain;background:#000}.mk-video-play-btn{width:50px;height:50px;border:none;border-radius:50%;background:var(--mk-video-blue);color:#fff;font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);box-shadow:0 2px 10px #00000040}.mk-video-modal{width:460px;max-width:92vw;background:#fff;border-radius:10px;padding:32px 30px 28px;text-align:center}.mk-video-modal .vm-title{font-size:16px;font-weight:600;color:var(--mk-text);margin-bottom:18px}.mk-video-modal .vm-yes{display:flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;font-size:14px;color:var(--mk-text);margin-bottom:24px;-webkit-user-select:none;user-select:none}.mk-video-modal .vm-yes input[type=radio]{width:19px;height:19px;accent-color:var(--mk-video-blue);cursor:pointer}.mk-video-next{width:120px;height:40px;border:none;border-radius:4px;background:var(--exam-black);color:#fff;font-size:14px;cursor:pointer;transition:opacity .15s}.mk-video-next:hover{opacity:.88}.mk-subject-expanded{width:100%;max-width:1107px;min-height:621px;background:var(--mk-panel-2);border-radius:4px;padding:28px 32px;display:flex;flex-direction:column}.mk-subject-expanded .se-title{font-size:18px;font-weight:600;color:var(--mk-text);margin-bottom:18px}.mk-test-info-bar{background:#fff;border-radius:4px;min-height:61px;display:flex;align-items:center;gap:12px;padding:12px 20px;margin-bottom:20px;-webkit-user-select:none;user-select:none}.mk-test-info-bar .ti-icon{width:30px;height:30px;border-radius:50%;background:var(--mk-purple-bg);color:var(--mk-purple);display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;flex-shrink:0}.mk-test-info-bar .ti-text{font-size:16px;color:var(--mk-text);font-weight:500;flex:1}.mk-test-info-bar .ti-status{font-size:14px;font-weight:500}.mk-test-info-bar .ti-status.ok{color:var(--mk-green)}.mk-test-info-bar .ti-status.no{color:var(--mk-red)}.mk-ready-title{font-size:28px;font-weight:700;color:var(--mk-text);text-align:center;margin:6px 0 4px}.mk-confirm-check-btn{width:120px;height:40px;border:none;border-radius:4px;background:var(--exam-black);color:#fff;font-size:14px;cursor:pointer;transition:opacity .15s}.mk-confirm-check-btn:disabled{background:var(--mk-bar-gray);cursor:default}.mk-confirm-check-btn:not(:disabled):hover{opacity:.88}.mk-subject-expanded .se-info{background:#fff;border-radius:6px;padding:20px 24px;margin-bottom:20px;font-size:13.5px;line-height:1.9;color:var(--mk-text-secondary)}.mk-subject-expanded .se-info b{color:var(--mk-text)}.mk-subject-video{width:702px;max-width:100%;height:300px;background:var(--mk-panel-1);border-radius:4px;margin:0 auto 22px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}.mk-subject-video video{width:100%;height:100%;object-fit:contain;background:#000}.mk-ready-row{display:flex;align-items:center;justify-content:center;gap:10px;font-size:14.5px;color:var(--mk-text);margin-bottom:18px;-webkit-user-select:none;user-select:none}.mk-ready-row input[type=checkbox]{width:17px;height:17px;cursor:pointer}.mk-start-btn{width:300px;height:50px;border:none;border-radius:6px;background:var(--exam-black);color:#fff;font-size:16px;cursor:pointer;align-self:center;margin-top:auto;transition:opacity .15s}.mk-start-btn:disabled{background:var(--mk-bar-gray);color:#fff;cursor:default}.mk-start-btn:not(:disabled):hover{opacity:.88}.mk-exam{display:flex;flex-direction:column;height:100vh;background:#fff}.mk-exam-topbar{height:57px;background:#fff;border-bottom:1px solid var(--exam-gray);display:flex;align-items:center;padding:0 16px;gap:12px;-webkit-user-select:none;user-select:none;flex-shrink:0}.mk-exam-topbar .exam-btn{background:transparent;color:#000;border:1px solid #000;border-radius:4px;padding:6px 16px;font-size:13px;cursor:pointer;transition:all .15s}.mk-exam-topbar .exam-btn:hover{background:#f0ecec}.mk-exam-topbar .saved-hint{font-size:12px;color:var(--mk-muted);margin-right:4px}.mk-exam-topbar .part-indicator{font-size:14px;font-weight:600;color:var(--exam-text);margin-left:12px}.mk-exam-topbar .spacer{flex:1}.mk-timer{font-size:14px;color:var(--exam-timer-red);font-variant-numeric:tabular-nums;font-weight:500}.mk-timer.warning{animation:mk-blink 1s infinite;font-weight:600}@keyframes mk-blink{50%{opacity:.5}}.mk-audio-bar{background:#fff;border-bottom:1px solid var(--exam-gray);padding:10px 20px;display:flex;align-items:center;gap:14px}.mk-audio-bar .play-btn{width:36px;height:36px;border-radius:50%;background:#000;color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0}.mk-audio-bar .audio-progress{flex:1}.mk-exam-body{display:flex;flex-direction:column;flex:1;overflow:hidden;position:relative}.mk-exam-content{flex:1;display:flex;min-height:0;overflow:hidden}.mk-writing-right{width:45%;flex:none;display:flex;flex-direction:column;overflow:hidden;background:#fff}.mk-split-divider{width:6px;cursor:col-resize;background:transparent;flex-shrink:0;transition:background .15s}.mk-split-divider:hover{background:var(--exam-highlight)}.mk-pane.left{overflow-y:auto;padding:16px 48px 16px 20px;line-height:1.7;font-size:14px;background:#fff}.mk-pane.right{overflow-y:auto;padding:16px 24px 16px 20px;line-height:1.7;font-size:14px;background:#fff}.mk-passage-title{font-size:16px;font-weight:600;margin-bottom:12px;color:var(--exam-text)}.mk-passage-para{margin-bottom:12px;font-size:14px;color:var(--exam-text)}.mk-passage-para .para-label{font-weight:600;margin-right:6px}.mk-highlight{background:#ffe9a8;padding:0 2px}.mk-note{background:#d6f0e6;padding:0 2px}.mk-q-group-title{font-size:14px;font-weight:600;margin:16px 0 4px;color:var(--exam-text)}.mk-q-group-desc{font-size:13px;color:var(--exam-text-secondary);margin-bottom:12px;white-space:pre-line}.mk-q-item{margin-bottom:16px}.mk-q-stem{font-size:14px;margin-bottom:6px;line-height:1.7;color:var(--exam-text)}.mk-q-blank{display:inline-block;min-width:100px;border-bottom:1px solid var(--exam-text);margin:0 2px}.mk-q-input{width:195px;height:38px;border:2px solid var(--mk-input-blue);border-radius:2px;padding:0 8px;font-size:16px;font-weight:700;outline:none;font-family:inherit;color:var(--exam-text);background:#fff;transition:border-color .15s}.mk-q-input:focus{border-color:var(--mk-highlight)}.mk-subject-bar{display:flex;align-items:center;justify-content:center;background:#f5f7fa;border-radius:10px;padding:4px 0;margin:8px 16px;-webkit-user-select:none;user-select:none;flex-shrink:0}.mk-subject-block{width:126px;height:71px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;cursor:pointer;border:none;background:transparent;padding:0}.mk-subject-block .sb-hint{font-size:12px;font-weight:600;color:#383838;white-space:nowrap}.mk-subject-block .sb-time{font-size:14px;font-weight:600;color:#383838;font-variant-numeric:tabular-nums}.mk-subject-block .sb-name{font-size:14px;font-weight:600;letter-spacing:.5px;white-space:nowrap}.mk-subject-block.inactive .sb-hint,.mk-subject-block.inactive .sb-time,.mk-subject-block.inactive .sb-name{color:#c9d4e4}.mk-subject-block.inactive .sb-hint{visibility:hidden}.mk-subject-connector{width:159px;height:5px;background:#dfe3e9;flex-shrink:0}.mk-nav-parts{display:flex;gap:10px;align-items:flex-start;flex:1;min-width:0;overflow-x:auto;scrollbar-width:thin;padding:6px 0}.mk-nav-part{display:flex;flex-direction:column;align-items:center;flex-shrink:0;-webkit-user-select:none;user-select:none}.mk-nav-part .mk-nav-part-label{width:89px;height:35px;display:flex;align-items:center;justify-content:center;gap:2px;font-size:12.8px;font-weight:500;color:var(--exam-text);cursor:pointer;border:none;background:transparent;padding:0}.mk-nav-part .mk-nav-part-label .part-progress-count{font-size:12.8px;font-weight:500;color:var(--exam-text-secondary)}.mk-nav-part-buttons{display:flex;flex-wrap:wrap;gap:4px 6px;max-width:375px;margin-top:4px;padding-top:4px}.mk-tf-group{display:flex;gap:18px;flex-wrap:wrap;margin:6px 0}.mk-tf-label{display:flex;align-items:center;gap:6px;font-size:13px;cursor:pointer;color:var(--exam-text)}.mk-tf-label input[type=radio]{accent-color:var(--exam-highlight);cursor:pointer}.mk-q-option{display:flex;align-items:flex-start;gap:10px;padding:6px 10px;border-radius:4px;cursor:pointer;font-size:14px;transition:background .15s;color:var(--exam-text)}.mk-q-option:hover{background:var(--exam-gray)}.mk-q-option.selected{background:#e8f4fd}.mk-opt-badge{width:20px;height:20px;border:1px solid #999;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:12px;flex-shrink:0;color:var(--exam-text)}.mk-q-option.selected .mk-opt-badge{background:var(--exam-highlight);color:#fff;border-color:var(--exam-highlight)}.mk-bottom-nav{background:#fff;border-top:1px solid var(--exam-gray);height:68px;padding:0 16px;-webkit-user-select:none;user-select:none;display:flex;align-items:center;gap:16px;flex-shrink:0}.mk-part-tabs{display:flex;gap:4px;align-items:center;flex-shrink:0}.mk-part-tab{padding:6px 14px;font-size:13px;cursor:pointer;border:1px solid transparent;border-radius:3px;color:var(--exam-text);background:transparent}.mk-part-tab.active{border-color:var(--exam-highlight);color:var(--exam-highlight);font-weight:600}.mk-part-tab .part-count{font-size:11px;color:var(--mk-muted);margin-left:4px}.mk-q-dots{display:flex;gap:6px;flex-wrap:nowrap;align-items:center;flex:1;overflow-x:auto;scrollbar-width:thin}.mk-q-dot{min-width:24px;height:35px;padding:0 4px;border:none;background:transparent;display:inline-flex;align-items:center;justify-content:center;cursor:pointer}.mk-q-dot .dot-inner{width:15px;height:25px;border:none;border-radius:4px;display:flex;align-items:center;justify-content:center;font-size:12.8px;color:#000;background:transparent;transition:all .15s}.mk-q-dot:hover 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var(--oc-border);padding-bottom:8px;margin-bottom:22px}.oc-card{border:1px solid var(--oc-border);border-radius:4px;padding:22px 28px;margin-bottom:22px;background:var(--oc-bg)}.oc-card-head{display:flex;justify-content:space-between;align-items:center}.oc-card-title{font-size:21px;font-weight:700;color:var(--oc-fg)}.oc-status{color:var(--oc-red);font-size:15px;font-weight:600;margin:10px 0 4px}.oc-status.done{color:var(--oc-done)}.oc-timing{font-size:15px;color:var(--oc-body);margin-bottom:12px}.oc-info-row{margin:6px 0 12px;border:1px solid var(--oc-border);border-radius:3px;padding:10px 14px}.oc-info-toggle{background:none;border:none;padding:0;font-size:13.5px;color:var(--oc-body);cursor:pointer;display:flex;align-items:center;gap:6px}.oc-info-toggle .caret{display:inline-block;transition:transform .15s;font-size:12px}.oc-info-toggle 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var(--mk-purple);position:relative}.hp-play:after{content:"";position:absolute;left:6.5px;top:4px;border-left:6px solid var(--mk-purple);border-top:4px solid transparent;border-bottom:4px solid transparent}.hp-subj{font-size:13px;font-weight:700;color:var(--mk-text);letter-spacing:.5px}.hp-state{font-size:12px;color:var(--mk-muted);margin-left:auto}.oc-nav-dot .flag-mark{position:absolute;left:50%;bottom:-4px;transform:translate(-50%);width:7px;height:7px;border-radius:50%;background:var(--oc-red);box-shadow:0 0 0 1px #ffffffb3}.oc-arrows{position:fixed;right:22px;bottom:68px;display:flex;gap:6px;z-index:30}.mk-copy-btn{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;margin-left:8px;border-radius:4px;color:var(--mk-purple);cursor:pointer;vertical-align:middle;transition:background .15s;-webkit-user-select:none;user-select:none}.mk-copy-btn:hover{background:color-mix(in srgb,var(--mk-purple) 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var(--mk-border);border-radius:14px;overflow:hidden;transition:box-shadow .2s,transform .2s}.tp-card:hover{box-shadow:0 8px 22px color-mix(in srgb,var(--mk-purple) 16%,transparent);transform:translateY(-2px)}.tp-card-head{background:linear-gradient(135deg,var(--mk-purple),var(--mk-purple-deep));color:#fff;padding:12px 16px;display:flex;align-items:center;justify-content:space-between}.tp-card-brand{font-size:15px;font-weight:800;letter-spacing:1px;display:flex;flex-direction:column;line-height:1.25}.tp-card-brand i{font-style:normal;font-size:9px;letter-spacing:2.5px;opacity:.8;font-weight:600}.tp-card-num{font-size:30px;font-weight:800;line-height:1}.tp-card-tests{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:12px}.tp-test{border:1px solid var(--mk-border);border-radius:10px;padding:10px 12px;cursor:pointer;background:#fff;display:flex;flex-direction:column;gap:3px;transition:all 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.12s}.tutor-swatch:hover{transform:scale(1.2)}.tutor-swatch.none{background:#fff;position:relative;overflow:hidden}.tutor-swatch.none:after{content:"";position:absolute;left:-3px;top:7px;width:22px;height:2px;background:var(--mk-red);transform:rotate(-45deg)}.tutor-tool-btn{border:1px solid #d8d8e4;background:#fff;border-radius:4px;font-size:12px;line-height:1.4;padding:1px 7px;cursor:pointer;color:var(--mk-text);font-family:inherit}.tutor-tool-btn:hover{border-color:var(--mk-purple);color:var(--mk-purple)}.tutor-tool-btn.on{background:var(--mk-purple);border-color:var(--mk-purple);color:#fff}.tutor-tool-clear{border:none;background:none;color:var(--mk-muted);font-size:13px;cursor:pointer;padding:0 4px}.tutor-tool-clear:hover{color:var(--mk-red)}.tutor-richtext{min-height:110px;border:1px solid #d8d8e4;border-radius:8px;background:#fff;font-size:13.5px;line-height:1.7;padding:10px 12px;white-space:pre-wrap;word-break:break-word;outline:none;overflow:visible;font-family:inherit;color:var(--mk-text)}.tutor-richtext:focus{border-color:var(--mk-purple);box-shadow:0 0 0 2px color-mix(in srgb,var(--mk-purple) 14%,transparent)}.tutor-richtext:empty:before{content:attr(data-placeholder);color:#b8b8c8;pointer-events:none}.tutor-box{border:1px solid color-mix(in srgb,var(--mk-purple) 12%,#e4e4ee);border-radius:12px;padding:12px 14px;background:color-mix(in srgb,var(--mk-purple) 4%,#ffffff)}.tutor-box-title{font-size:14px;font-weight:700;color:var(--mk-purple);margin-bottom:10px;padding-left:8px;border-left:3px solid var(--mk-purple);line-height:1.2}.tutor-student-select{width:100%;padding:8px 10px;border:1px solid #d8d8e4;border-radius:8px;font-size:14px;background:#fff}.tutor-stu-info{margin-top:10px;font-size:13.5px;color:var(--mk-text);display:flex;flex-direction:column;gap:6px}.tutor-info-row{line-height:1.45}.tutor-sess-item{font-size:12.5px;color:var(--mk-muted);background:#fff;border:1px solid #eeeef5;border-radius:6px;padding:6px 8px;line-height:1.45}.tutor-save-btn{width:100%;padding:11px 20px;font-size:15px;border-radius:10px}.tutor-save-msg{font-size:13px;color:var(--mk-green);text-align:center}.oc-audio-seek{width:110px;accent-color:var(--mk-purple);cursor:pointer}.oc-audio-time{font-size:11px;color:var(--oc-muted, #888);white-space:nowrap;margin-right:4px}