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a.is-answered{border-color:#52c41a;color:#237804;background:#f6ffed}.exam-question-panel{display:grid;gap:16px;min-width:0;width:100%}.exam-taking-question{scroll-margin-top:116px;padding:22px 24px 24px;border:1px solid #dfe6f1;border-radius:8px;background:#fff;box-shadow:0 8px 22px #1d365b0d}.exam-question-title{display:grid;grid-template-columns:38px minmax(0,1fr);gap:16px;align-items:flex-start}.exam-question-title>span{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;color:#fff;background:#1769e0;font-weight:800}.exam-question-title h4.ant-typography{margin:10px 0 0;color:#101828;font-size:19px;line-height:1.65;white-space:pre-wrap}.exam-answer-control{margin-top:16px;padding-left:54px}.exam-option-list{display:grid;gap:12px;width:100%}.exam-option-list .ant-radio-wrapper,.exam-option-list .ant-checkbox-wrapper{display:flex;align-items:center;margin-inline-start:0;min-height:52px;padding:12px 14px;border:1px solid #dfe6f1;border-radius:8px;background:#fbfdff;line-height:1.7}.exam-option-list .ant-radio-wrapper:hover,.exam-option-list .ant-checkbox-wrapper:hover{border-color:#91caff;background:#f5faff}.exam-answer-control .ant-input{border-color:#dfe6f1;border-radius:8px;background:#fbfdff}.exam-code-editor{overflow:hidden;border:1px solid #263244;border-radius:8px;background:#0f172a}.exam-code-toolbar{display:flex;align-items:center;justify-content:space-between;height:40px;padding:0 14px;border-bottom:1px solid #263244;color:#cbd5e1;background:#111827;font-size:13px;font-weight:700}.exam-code-body{display:grid;grid-template-columns:52px minmax(0,1fr)}.exam-code-lines{display:grid;align-content:start;gap:0;padding:13px 0;border-right:1px solid #263244;color:#64748b;background:#111827;font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;font-size:14px;line-height:24px;text-align:center;-webkit-user-select:none;user-select:none}.exam-code-input.ant-input{min-height:300px;padding:13px 16px;border:0;border-radius:0;color:#e5e7eb;background:#0f172a;box-shadow:none;font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;font-size:14px;line-height:24px;resize:vertical}.exam-code-input.ant-input::placeholder{color:#64748b}.exam-code-input.ant-input:focus{border:0;box-shadow:none}.student-ai-chat-page{min-height:100vh;padding:28px;background:radial-gradient(circle at 12% 0,rgba(34,197,94,.12),transparent 26%),linear-gradient(180deg,#edf6ff 0,#f7f9fc 360px),#f7f9fc}.mock-interview-page{min-height:100vh;padding:24px;background:radial-gradient(circle at 8% 0,rgba(22,119,255,.12),transparent 30%),linear-gradient(180deg,#f5f8ff 0,#f6f8fb 420px),#f6f8fb}.mock-interview-topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;width:min(1240px,100%);margin:0 auto 14px}.mock-interview-topbar .brand-mark{color:#fff;background:#1677ff}.mock-interview-hero{width:min(1240px,100%);margin:0 auto 16px;padding:18px 0 2px}.mock-interview-hero h1.ant-typography{margin:6px 0 10px;color:#111827;font-size:34px;line-height:1.18;letter-spacing:0}.mock-interview-hero .ant-typography{max-width:680px;color:#667085}.mock-interview-workspace{width:min(1240px,100%);margin:0 auto;padding:18px;border:1px solid rgba(208,215,225,.9);border-radius:8px;background:#ffffffdb;box-shadow:0 18px 42px #0f172a0f}.mock-progress-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;padding:6px;border:1px solid #edf1f7;border-radius:8px;background:#f8fafc}.mock-progress-item{display:flex;align-items:center;min-width:0;gap:8px;padding:10px 12px;border-radius:8px;color:#667085}.mock-progress-item span{display:grid;flex:0 0 auto;width:26px;height:26px;place-items:center;border-radius:999px;background:#eef2f7;color:#667085}.mock-progress-item strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px;font-weight:600}.mock-progress-item.is-current{color:#155eef;background:#eef5ff}.mock-progress-item.is-current span,.mock-progress-item.is-done span{color:#fff;background:#1677ff}.mock-loading{display:grid;place-items:center;min-height:360px}.mock-grid{display:grid;grid-template-columns:minmax(310px,390px) minmax(0,1fr);gap:16px;margin-top:16px}.mock-panel{min-width:0;padding:24px;border:1px solid #e7edf5;border-radius:8px;background:#fff}.mock-panel h3.ant-typography,.mock-panel h4.ant-typography{margin:2px 0 8px;color:#111827}.mock-panel>.ant-typography{color:#667085}.mock-panel-eyebrow{display:block;color:#1677ff;font-size:12px;font-weight:700;letter-spacing:0;text-transform:uppercase}.mock-resume-box{display:grid;grid-template-columns:52px minmax(0,1fr);gap:14px;margin:18px 0;padding:16px;border:1px solid #e4eaf3;border-radius:8px;background:#f8fbff}.mock-resume-box strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mock-resume-box p{margin:4px 0;color:#667085}.mock-resume-box small{color:#98a2b3}.resume-icon{display:grid;width:52px;height:52px;place-items:center;border-radius:8px;color:#1677ff;background:#eaf3ff;font-size:26px}.mock-panel .ant-alert{margin:14px 0}.mock-profile-panel{display:flex;flex-direction:column;min-height:560px}.mock-action-row{margin-top:4px}.mock-action-row .ant-btn-primary{min-width:188px}.profile-summary-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:18px 0}.profile-summary-grid>div{min-width:0;padding:14px 16px;border:1px solid #e4eaf3;border-radius:8px;background:#fbfcff}.profile-summary-grid span,.mock-tag-section>.ant-typography,.mock-project-list>.ant-typography{display:block;margin-bottom:8px}.profile-summary-grid strong{display:block;overflow-wrap:anywhere;color:#111827;font-size:17px;line-height:1.45}.mock-tag-section,.mock-project-list{margin-top:18px}.tag-row{display:flex;flex-wrap:wrap;gap:7px}.mock-skill-tag.ant-tag,.mock-topic-tag.ant-tag,.mock-focus-tag.ant-tag{margin-inline-end:0;border-radius:6px;font-weight:500;line-height:24px}.mock-skill-tag.ant-tag{color:#155eef;border-color:#b8d7ff;background:#f1f7ff}.mock-topic-tag.ant-tag{color:#344054;border-color:#d0d5dd;background:#fff}.mock-focus-tag.ant-tag{color:#6941c6;border-color:#d6bbfb;background:#f9f5ff}.mock-project-item{margin-top:10px;padding:14px 16px;border:1px solid #edf1f7;border-radius:8px;background:#fff}.mock-project-item p{margin:6px 0 10px;color:#667085}.mock-empty-profile{display:grid;place-items:center;align-content:center;min-height:420px;gap:12px;color:#98a2b3;text-align:center}.mock-empty-profile h4.ant-typography{margin:0}.mock-empty-profile .anticon{display:grid;width:64px;height:64px;place-items:center;border-radius:8px;color:#1677ff;background:#eef5ff;font-size:34px}.mock-start-row{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end;margin-top:22px}.mock-voice-page{min-height:100vh;padding:24px;overflow:hidden;background:radial-gradient(circle at 50% 14%,rgba(124,92,255,.1),transparent 28%),radial-gradient(circle at 12% 72%,rgba(22,119,255,.08),transparent 28%),linear-gradient(180deg,#fbfcff 0,#f7f9fc)}.mock-voice-v2-page{min-height:100vh;padding:24px;background:radial-gradient(circle at 50% 10%,rgba(20,184,166,.1),transparent 26%),radial-gradient(circle at 14% 72%,rgba(22,119,255,.08),transparent 26%),linear-gradient(180deg,#fbfcff 0,#f6f8fb)}.mock-voice-v2-stage{display:flex;flex-direction:column;align-items:center;width:min(980px,100%);min-height:calc(100vh - 88px);margin:0 auto;padding:56px 0 72px;text-align:center}.voice-v2-radar{display:grid;width:142px;height:142px;place-items:center;margin:26px 0 30px;border:1px solid rgba(20,184,166,.28);border-radius:999px;color:#0f766e;background:#fff;box-shadow:0 18px 42px #0f766e1f;font-size:58px}.voice-v2-radar.is-listening{animation:voiceV2Pulse 1.6s ease-in-out infinite}.mock-voice-v2-stage h1.ant-typography{margin:0;color:#101828;font-size:clamp(34px,5vw,62px);font-weight:900;letter-spacing:0}.mock-voice-v2-stage>.ant-typography{width:min(760px,100%);margin:16px auto 18px;color:#667085;font-size:17px;line-height:1.8}.voice-v2-transcript{width:min(820px,100%);margin:22px auto 28px;text-align:left}.voice-v2-transcript-title{margin-bottom:10px;color:#344054;font-size:14px;font-weight:800}.voice-v2-transcript-body{min-height:220px;padding:18px;border:1px solid #dbe7f3;border-radius:8px;background:#ffffffe0;box-shadow:0 14px 36px #0f172a0f}.voice-v2-transcript-body p{margin:0}.voice-v2-final{padding:10px 0;color:#101828;font-size:16px;line-height:1.75;border-bottom:1px solid #edf2f7}.voice-v2-final:last-child{border-bottom:0}.voice-v2-partial-line{padding:10px 0;color:#0f766e;font-size:16px;line-height:1.75;border-bottom:1px solid #edf2f7}.voice-v2-partial{display:flex;gap:10px;align-items:flex-start;margin-top:10px!important;color:#0f766e;font-size:16px;line-height:1.75}.voice-v2-partial span{flex:0 0 auto;margin-top:3px;padding:1px 7px;border-radius:999px;color:#0f766e;background:#ccfbf1;font-size:12px;font-weight:700}.voice-v2-placeholder{color:#98a2b3;line-height:1.8}.voice-v2-error{margin-top:10px;padding:10px 12px;border:1px solid #fecaca;border-radius:8px;color:#b42318;background:#fff1f2}.voice-v2-audio-stat{margin-top:10px;color:#64748b;font-size:14px}.voice-v2-chat{width:min(900px,100%);margin:22px auto 30px;padding:18px;border:1px solid #dbe7f3;border-radius:8px;background:#ffffffe6;box-shadow:0 16px 42px #0f172a14;text-align:left}.voice-v2-chat-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;color:#101828;font-size:18px;font-weight:900}.voice-v2-chat-title small{color:#667085;font-size:13px;font-weight:700}.voice-v2-chat-list{display:flex;flex-direction:column;gap:16px;min-height:280px;max-height:460px;padding:4px 2px 8px;overflow-y:auto}.voice-v2-chat-empty{display:grid;min-height:240px;place-items:center;padding:28px;border:1px dashed #cbd5e1;border-radius:8px;color:#98a2b3;background:#f8fafc;font-size:16px;line-height:1.7;text-align:center}.voice-v2-chat-row{display:flex;align-items:flex-start;gap:10px}.voice-v2-chat-row.is-student{flex-direction:row-reverse}.voice-v2-chat-avatar{display:grid;flex:0 0 38px;width:38px;height:38px;place-items:center;border-radius:50%;color:#fff;background:#111827;font-size:13px;font-weight:900}.voice-v2-chat-row.is-student .voice-v2-chat-avatar{background:#2563eb}.voice-v2-chat-bubble{max-width:min(680px,calc(100% - 56px));padding:12px 14px;border:1px solid #e2e8f0;border-radius:8px;color:#101828;background:#fff;box-shadow:0 10px 24px #0f172a0d}.voice-v2-chat-row.is-student .voice-v2-chat-bubble{border-color:#2563eb;color:#fff;background:linear-gradient(135deg,#2563eb,#14b8a6)}.voice-v2-chat-name{display:flex;align-items:center;gap:8px;margin-bottom:6px;color:#667085;font-size:12px;font-weight:800}.voice-v2-chat-row.is-student .voice-v2-chat-name{justify-content:flex-end;color:#ffffffd1}.voice-v2-chat-name em{flex:0 0 auto;padding:1px 7px;border-radius:999px;color:#0f766e;background:#ccfbf1;font-style:normal;font-size:12px}.voice-v2-chat-row.is-student .voice-v2-chat-name em{color:#1e3a8a;background:#dbeafe}.voice-v2-chat-bubble p{margin:0;white-space:pre-wrap;word-break:break-word;font-size:16px;line-height:1.75}.voice-v2-chat-footer{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;color:#64748b;font-size:13px}.voice-v2-chat-footer span{padding:4px 9px;border:1px solid #e2e8f0;border-radius:999px;background:#f8fafc}@keyframes voiceV2Pulse{0%,to{box-shadow:0 18px 42px #0f766e1f,0 0 #14b8a62e}50%{box-shadow:0 18px 42px #0f766e1f,0 0 0 18px #14b8a600}}.mock-voice-topbar{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;width:min(1180px,100%);margin:0 auto}.mock-voice-stage{display:flex;flex-direction:column;align-items:center;justify-content:center;width:min(980px,100%);min-height:calc(100vh - 88px);margin:0 auto;padding:44px 0 72px;text-align:center}.voice-avatar-wrap{position:relative;display:grid;width:220px;height:220px;place-items:center;margin-bottom:88px}.voice-wave-ring{position:absolute;top:2px;right:2px;bottom:2px;left:2px;border-radius:999px;background:repeating-conic-gradient(from 0deg,rgba(145,150,161,.56) 0deg 1.4deg,transparent 1.4deg 4.2deg);mask:radial-gradient(circle,transparent 0 71%,#000 72% 100%);opacity:.72}.voice-avatar-wrap.is-speaking .voice-wave-ring{animation:voiceRing 1.4s linear infinite;background:repeating-conic-gradient(from 0deg,rgba(22,119,255,.72) 0deg 1.8deg,transparent 1.8deg 4.6deg)}.voice-avatar{position:relative;display:grid;width:164px;height:164px;place-items:center;border-radius:999px;background:radial-gradient(circle at 52% 34%,#ffffff 0 18%,transparent 19%),linear-gradient(145deg,#e8dcff,#f3d6f0 45%,#d9edff);box-shadow:0 20px 44px #4e45842e}.voice-avatar:before,.voice-avatar:after{position:absolute;top:68px;width:17px;height:17px;border-radius:999px;background:#1f2937;box-shadow:0 0 0 5px #ffffffc7;content:""}.voice-avatar:before{left:54px}.voice-avatar:after{right:54px}.voice-avatar-face{position:absolute;bottom:34px;color:#475467;font-size:22px;font-weight:800;letter-spacing:0}.mock-voice-stage h1.ant-typography{max-width:980px;margin:0;color:#050505;font-size:48px;font-weight:800;line-height:1.18;letter-spacing:0}.mock-voice-stage h1.ant-typography span,.mock-voice-stage h1.ant-typography mark{padding:0 3px;background:#1118271f}.mock-voice-stage h1.ant-typography mark{color:#8c93ea}.mock-voice-stage .ant-typography{max-width:700px}.mock-voice-stage p.ant-typography{margin:20px auto 0;color:#667085;font-size:17px;line-height:1.8}.mock-voice-context{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;max-width:740px;margin:24px auto 0}.mock-voice-context span{padding:6px 12px;border:1px solid #e4e7ec;border-radius:999px;color:#344054;background:#ffffffb8;font-size:13px;font-weight:600}.mock-voice-dialog{width:min(760px,100%);max-height:300px;margin:24px auto 0;padding:16px;overflow-y:auto;border:1px solid rgba(148,163,184,.34);border-radius:8px;background:#ffffffd6;box-shadow:0 18px 46px #0f172a14;text-align:left}.mock-voice-dialog-title{margin-bottom:12px;color:#667085;font-size:13px;font-weight:800}.mock-voice-dialog-list{display:flex;flex-direction:column;gap:12px}.mock-voice-message{max-width:82%}.mock-voice-message span{display:block;margin-bottom:5px;color:#667085;font-size:12px;font-weight:800}.mock-voice-message p{margin:0;padding:12px 14px;border-radius:8px;color:#111827;font-size:15px;line-height:1.75;word-break:break-word}.mock-voice-message.is-assistant{align-self:flex-start}.mock-voice-message.is-assistant p{border:1px solid #e4e7ec;background:#fff}.mock-voice-message.is-student{align-self:flex-end;text-align:right}.mock-voice-message.is-student p{color:#fff;background:linear-gradient(135deg,#2563eb,#14b8a6);text-align:left}.voice-start-button.ant-btn{display:inline-flex;align-items:center;height:76px;margin-top:82px;padding:0 42px 0 18px;border:0;border-radius:999px;background:linear-gradient(90deg,#1f6fff,#7828ff);box-shadow:0 18px 36px #4257ff3d;font-size:21px;font-weight:700}.voice-start-button.ant-btn .anticon{display:grid;width:58px;height:58px;place-items:center;margin-right:18px;border-radius:999px;background:#ffffff3d;font-size:26px}.voice-call-controls{display:flex;align-items:center;justify-content:center;gap:16px;margin-top:64px}.voice-call-controls .ant-btn{width:62px;height:62px;border:0;background:#fff;box-shadow:0 14px 28px #0f172a1a;font-size:22px}.voice-call-controls .voice-commit-button.ant-btn{width:auto;min-width:116px;padding:0 24px;border-radius:999px;color:#fff;background:linear-gradient(135deg,#2563eb,#14b8a6);font-size:18px;font-weight:700}.voice-call-controls .voice-commit-button.ant-btn:disabled{color:#fff;background:#94a3b8;box-shadow:none;opacity:.86}.voice-call-controls .ant-btn-dangerous{color:#fff;background:#ef4444}.voice-call-controls .is-muted{color:#ef4444}@keyframes voiceRing{0%{transform:rotate(0) scale(1)}50%{transform:rotate(180deg) scale(1.04)}to{transform:rotate(360deg) scale(1)}}.ai-chat-topbar{display:flex;align-items:center;justify-content:space-between;gap:24px;width:min(1220px,100%);margin:0 auto 22px}.ai-chat-topbar h2.ant-typography{margin:8px 0;color:#101828;font-size:34px;line-height:1.22}.ai-chat-topbar .ant-typography{margin-bottom:0}.ai-chat-shell{display:grid;grid-template-columns:300px minmax(0,1fr);gap:16px;width:min(1220px,100%);min-height:calc(100vh - 145px);margin:0 auto}.ai-chat-sidebar,.ai-chat-main{min-height:0;border:1px solid #e1e8f2;border-radius:8px;background:#fffffff5;box-shadow:0 16px 38px #274c7714}.ai-chat-sidebar{display:flex;flex-direction:column;padding:16px}.ai-chat-sidebar-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.ai-chat-sidebar-head strong{color:#101828;font-size:17px}.ai-session-list{display:grid;gap:8px;max-height:calc(100vh - 222px);overflow:auto;padding-right:2px}.ai-session-item{display:grid;gap:6px;width:100%;min-height:70px;padding:12px;border:1px solid #e7edf6;border-radius:8px;color:#263448;background:#f8fbff;text-align:left;cursor:pointer}.ai-session-item:hover{border-color:#91caff;background:#f2f8ff}.ai-session-item.is-active{border-color:#1677ff;background:#eef6ff;box-shadow:inset 3px 0 #1677ff}.ai-session-item span{overflow:hidden;font-size:15px;font-weight:800;line-height:1.35;text-overflow:ellipsis;white-space:nowrap}.ai-session-item small{color:#7a8699;font-size:12px}.ai-chat-main{display:grid;grid-template-rows:auto minmax(0,1fr) 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