:root{color-scheme:light;--paper:#f7f5ef;--ink:#222426;--muted:#7b7f7c;--blue:#547384;--sky:#e4edef;--green:#e9eee3;--line:#e0e3dd;--sand:#f0e9de;--ease:cubic-bezier(.2,.75,.2,1);font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;font-size:16px;line-height:1.65;-webkit-tap-highlight-color:transparent}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);overflow-x:hidden}button,a,input,textarea{touch-action:manipulation}button,input,textarea{font:inherit}button{cursor:pointer;border:0;color:inherit;background:none;min-height:44px;border-radius:16px;padding:10px 16px;transition:transform .22s var(--ease),background-color .22s var(--ease),box-shadow .22s var(--ease),opacity .18s; -webkit-user-select:none;user-select:none}button:disabled{opacity:.43;cursor:default}button:active:not(:disabled){transform:scale(.975)}a{color:var(--blue);text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #799ca8;outline-offset:3px}h1,h2,h3,p{margin:0}h1{font-size:36px;letter-spacing:-1.2px;line-height:1.25;font-weight:700}h2{font-size:23px;line-height:1.4;letter-spacing:-.4px}h3{font-size:17px;font-weight:600}p+p{margin-top:12px}small,.muted{color:var(--muted)}
.preview-bar{min-height:32px;display:flex;align-items:center;justify-content:center;gap:20px;background:#ebeae2;color:#797d76;font-size:11px;position:relative;z-index:2}.preview-bar button{font-size:11px;min-height:32px;padding:0 5px;color:var(--blue)}
.layout{max-width:1160px;margin:auto;display:grid;grid-template-columns:280px minmax(0,640px);gap:84px;padding:0 38px}.brand{padding:57px 0 50px;position:sticky;top:0;height:calc(100dvh - 32px);display:flex;flex-direction:column;align-items:flex-start}.wordmark{font-size:30px;font-weight:650;color:var(--ink);display:flex;align-items:center;gap:16px;padding:0}.wordmark span{font-size:10px;letter-spacing:3px;color:var(--muted);font-weight:500}.brand>p{font-size:28px;line-height:1.75;letter-spacing:.5px;margin-top:100px;font-weight:500}.side-note{margin-top:auto;color:var(--muted);font-size:13px;line-height:1.9}.text-link{padding-left:0;color:var(--blue);font-size:14px;display:inline-flex;align-items:center;gap:8px}.app{min-width:0;min-height:calc(100dvh - 32px);position:relative;padding-bottom:115px}header{display:flex;justify-content:space-between;align-items:center;min-height:142px;gap:16px}header p{font-size:14px;margin-top:5px;color:var(--muted)}
.mentor{position:relative;display:flex;align-items:center;gap:5px;padding:4px 13px 4px 5px;min-height:46px;color:var(--blue);font-size:15px;font-weight:600;white-space:nowrap;border:1px solid #ffffffed;border-radius:100px;background:linear-gradient(150deg,#fff9 3%,#ffffff33 48%,#ffffff88);box-shadow:0 0 0 .65px #97a49c45,inset 0 1px 1px #fff, inset 0 -1px 2px #7c918b12,0 3px 8px #40544b07;backdrop-filter:blur(18px) saturate(1.15);-webkit-backdrop-filter:blur(18px) saturate(1.15)}.mentor img{width:36px;height:36px;object-fit:contain}.mentor:active{background:#fff9;box-shadow:0 0 0 .65px #97a49c45,inset 0 2px 4px #54738412;transform:scale(.955)!important}
.hero{background:var(--sky);border-radius:30px;padding:27px 26px 24px;min-height:258px;position:relative;overflow:hidden;border:1px solid #dbe5e4;isolation:isolate}.hero::after{content:'';position:absolute;width:230px;height:230px;border-radius:50%;background:#ffffff36;right:-45px;bottom:-35px;z-index:-1}.hero .copy{position:relative;z-index:1;width:66%}.hero h2{font-size:30px;line-height:1.42;margin:15px 0 12px;font-weight:650;letter-spacing:-.7px}.eyebrow{font-size:12px;letter-spacing:.5px;color:var(--blue);font-weight:600}.hero p{color:#708087;font-size:15px;max-width:250px;line-height:1.75}.hero img{position:absolute;width:40%;right:-6px;bottom:-1px;max-height:240px;object-fit:contain;object-position:bottom;pointer-events:none;z-index:0}.hero .actions{margin-top:19px}.hero .actions>*{flex:initial}.hero .primary{padding:9px 18px;min-height:42px;font-size:14px;border-radius:22px}.hero-progress{margin-top:18px;max-width:240px;color:var(--blue);font-size:11px;display:flex;align-items:center;gap:10px}.hero-progress progress{width:125px;height:4px;border:0;border-radius:3px;overflow:hidden;background:#54738420;appearance:none}.hero-progress progress::-webkit-progress-bar{background:#54738420}.hero-progress progress::-webkit-progress-value{background:var(--blue);border-radius:4px}.hero-progress progress::-moz-progress-bar{background:var(--blue)}
.section-heading{display:flex;justify-content:space-between;align-items:center;margin:27px 0 14px;gap:12px}.section-heading h2{font-size:20px}.section-heading small{font-size:12px}.card{background:#fffdfbd9;border:1px solid #ebece5;border-radius:27px;padding:24px;margin-bottom:16px;box-shadow:0 2px 5px #36423802}.card p{color:var(--muted)}.row-card{display:flex;align-items:center;gap:15px;text-align:left;width:100%;padding:20px;background:var(--sky);border:1px solid #dce5e3;border-radius:25px;margin-bottom:13px}.row-card.green{background:var(--green);border-color:#e0e6da}.row-card.sand{background:var(--sand);border-color:#e9e2d6}.row-card>div{flex:1;min-width:0}.row-card strong,.row-card small{display:block}.row-card strong{font-weight:600;font-size:17px}.row-card small{font-size:13px;line-height:1.65;margin-top:4px}.row-card .chevron{color:#809399;display:grid;place-items:center}.icon{width:23px;height:23px;display:inline-block;vertical-align:middle;flex-shrink:0}.icon-tile{width:47px;height:47px;display:grid;place-items:center;background:#ffffff96;border-radius:15px;color:var(--blue);flex:0 0 47px}.primary{background:var(--blue);color:#fff;font-weight:600;display:inline-flex;justify-content:center;align-items:center;gap:8px;border:1px solid #54738408;min-height:48px;box-shadow:inset 0 1px 0 #ffffff12}.secondary{background:#e9eeeb;color:var(--blue);min-height:46px}.wide{width:100%}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.actions>*{flex:1}.subtle{font-size:12px;color:var(--muted);margin-top:13px;line-height:1.75}.strip{display:flex;align-items:flex-start;gap:10px;background:#e9eee582;padding:16px 18px;border-radius:19px;font-size:13px;color:#788277}.strip .icon{width:19px;height:19px;margin-top:2px}.support-links{display:flex;flex-wrap:wrap;gap:0;margin-top:21px;justify-content:center}.support-links button{font-size:12px;padding:8px 9px;min-height:44px;color:#838983}.support-links button+button::before{content:''}footer{margin:0 0 24px;text-align:center;color:#9a9e97;font-size:11px}
nav{position:fixed;bottom:24px;width:min(640px,calc(100vw - 76px));display:flex;background:#ffffffb8;backdrop-filter:blur(24px) saturate(1.2);-webkit-backdrop-filter:blur(24px) saturate(1.2);border:1px solid #fffffff2;outline:.7px solid #b9c2b180;box-shadow:inset 0 -1px 3px #56654e08,0 5px 22px #36412f08;border-radius:40px;padding:6px;z-index:3;isolation:isolate}nav::before{content:'';position:absolute;z-index:-1;left:6px;top:6px;bottom:6px;width:calc((100% - 12px)/4);border-radius:30px;background:#e3e6df;transition:transform .32s var(--ease)}nav[data-active='1']::before{transform:translateX(100%)}nav[data-active='2']::before{transform:translateX(200%)}nav[data-active='3']::before{transform:translateX(300%)}nav button{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;font-size:11px;border-radius:32px;color:#7d827c;min-height:56px;padding:6px}nav button.active{color:var(--blue);font-weight:600}nav .icon{width:24px;height:24px}nav button.active .icon{stroke-width:2.1}
/* A single sheet contains each focused action. It never moves the page underneath. */
dialog{border:1px solid #ffffffe6;background:#f8f7f2;color:var(--ink);border-radius:28px;width:min(480px,calc(100vw - 32px));max-height:85dvh;padding:24px;box-shadow:0 30px 90px #243c3c28;overflow:auto;overscroll-behavior:contain;scrollbar-width:thin}dialog[open]{animation:sheet-in .28s var(--ease)}dialog.closing{animation:sheet-out .18s ease-in forwards}dialog::backdrop{background:#263d3e38;backdrop-filter:blur(5px);-webkit-backdrop-filter:blur(5px)}dialog[open]::backdrop{animation:veil-in .24s ease}dialog.closing::backdrop{animation:veil-out .18s ease-in forwards}.dialog-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:21px;position:relative}.dialog-top h2{font-size:22px}.circle{border-radius:50%;width:44px;min-width:44px;height:44px;padding:0;display:inline-grid;place-items:center;background:#ffffffb3;border:1px solid #dedfd6;box-shadow:inset 0 1px white;color:var(--blue)}.circle .icon{width:21px;height:21px}.dialog-top .circle{flex-shrink:0}dialog p{color:var(--muted);font-size:14px;line-height:1.8}dialog .card{padding:18px}dialog ol{padding-left:22px}dialog li{margin:12px 0;font-size:14px;color:#6d7774}dialog .primary{margin-top:16px}.dialog-hint{border-top:1px solid var(--line);margin-top:20px;padding-top:15px}.sheet-subhead{margin-top:20px;margin-bottom:8px}.sheet-selection{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:16px;border-radius:19px;background:var(--sky);margin:12px 0 20px}.sheet-selection strong{font-size:18px}.sheet-selection p{font-size:12px}.sheet-selection .price{font-size:28px}.confirmation{background:#fff9;padding:16px;border:1px solid #e6e8e0;border-radius:18px}.confirmation h3{margin-bottom:8px}.confirmation p{font-size:13px;color:#6f7670}.confirmation-check{margin-top:17px}.confirmation-check span{font-size:13px;color:#586c72}
#notice{position:fixed;left:50%;bottom:120px;transform:translate(-50%,8px);max-width:min(90vw,480px);background:#293e3df0;backdrop-filter:blur(12px);color:white;border-radius:18px;padding:11px 18px;font-size:13px;z-index:8;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s var(--ease)}#notice.visible{opacity:1;transform:translate(-50%,0)}input:not([type=checkbox]):not([type=range]),textarea{width:100%;background:#fffdfb;border:1px solid var(--line);border-radius:15px;min-height:48px;padding:13px;color:var(--ink);margin:10px 0;font-size:16px;transition:border-color .2s,box-shadow .2s}input:focus,textarea:focus{border-color:#88a0aa;box-shadow:0 0 0 3px #5473840a}textarea{resize:vertical;min-height:130px}.price{font-size:34px;font-weight:650;color:var(--blue);line-height:1.3;letter-spacing:-1px;font-variant-numeric:tabular-nums}.price small{font-size:14px;font-weight:400;margin-right:3px}.product{display:grid;grid-template-columns:1fr auto;gap:12px}.product .actions,.product .subtle{grid-column:1/-1}.product .actions{margin-top:8px}.product h2{font-size:21px}.product p{font-size:14px}.badge{font-size:11px;display:inline-flex;align-items:center;gap:6px;background:#e8eee5;color:#748372;border-radius:30px;padding:4px 10px}.badge::before{content:'';width:5px;height:5px;border-radius:50%;background:#8b9f85}.account-label{font-size:25px;margin:10px 0 4px}.account-card{background:linear-gradient(135deg,#fffdfa,#f1f1e9)}.account-card .actions{margin-top:20px}.account-subtitle{font-size:13px}.entitlement-card{background:#e8efee88}.entitlement-card h2{margin-top:10px;margin-bottom:8px}.order{padding:20px 0;border-bottom:1px solid var(--line)}.order:last-child{border:0;padding-bottom:0}.order-top{display:flex;justify-content:space-between;gap:10px}.order p{font-size:12px}.order strong{font-size:15px}.order-status{font-size:11px;color:var(--blue);white-space:nowrap}.order code{display:block;word-break:break-all;background:#edf1ee;padding:12px 15px;border-radius:12px;font-family:monospace;font-size:14px;margin:12px 0}.order .secondary{font-size:13px}.order .small-button{margin-top:8px}.empty{padding:26px 0;text-align:center;color:#9aa198}.empty .icon{margin-bottom:10px;color:#a2ada7}.empty p{font-size:13px}
.step-line{display:flex;justify-content:space-between;gap:6px;font-size:11px;margin-bottom:20px;color:#a0a69f}.step-line .current{color:var(--blue);font-weight:600}.step-line span{display:flex;align-items:center;gap:5px}.question{font-size:18px;line-height:1.85;color:#454d4a!important;margin-top:10px}.requirements{font-size:14px;border-top:1px solid var(--line);padding-top:17px;margin-top:18px;color:#92958e;line-height:1.8}.timer{font-variant-numeric:tabular-nums;font-size:38px;letter-spacing:1px;color:var(--blue);font-weight:500;line-height:1.4;margin-top:7px}.recorder{text-align:center;padding-top:28px}.record-symbol{width:52px;height:52px;border-radius:50%;background:var(--sky);color:var(--blue);display:grid;place-items:center;margin:0 auto 15px}.recorder h3{font-size:16px}.recorder button{margin-top:12px}.recorder .subtle{font-size:12px;max-width:320px;margin:11px auto 0}.recording-live .record-symbol{box-shadow:0 0 0 7px #54738408}.recording-live .record-symbol::after{content:'';position:absolute;width:52px;height:52px;border-radius:50%;border:1px solid #54738430;animation:record-pulse 2s ease-in-out infinite}.recorder .text-link{display:inline-flex;justify-content:center;width:100%}.focus-layout #header{min-height:95px;position:relative}.focus-layout h1{font-size:22px;letter-spacing:-.4px}.focus-layout header p{font-size:12px}.focus-layout .app{padding-bottom:40px}.review-header{scroll-margin-top:20px}.player{position:sticky;top:12px;z-index:2;background:#fafbf7ed;border:1px solid #fff;outline:.6px solid #cbd6ce99;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-radius:22px;padding:13px 16px;margin:0 0 22px;box-shadow:0 5px 15px #374b3807}.player-body{display:flex;align-items:center;gap:13px}.play-toggle{width:44px;height:44px;min-width:44px;border-radius:50%;background:var(--blue);color:white;padding:0;display:grid;place-items:center}.play-toggle .icon{width:18px;height:18px}.scrub{flex:1;min-width:0}.scrub-top{display:flex;justify-content:space-between;gap:10px;font-size:11px;color:#809087;line-height:1.5}.scrub-top strong{font-weight:500;color:var(--blue)}.scrub-time{font-variant-numeric:tabular-nums}.scrub input{width:100%;height:28px;padding:0;margin:0;accent-color:var(--blue);cursor:pointer;display:block}.record-notice{font-size:12px;color:#859082;margin:0 0 20px;display:flex;gap:8px;align-items:center}.record-notice .icon{width:16px;height:16px}.check{display:flex;align-items:flex-start;gap:12px;padding:12px 0;font-size:15px;line-height:1.85;cursor:pointer;min-height:48px}.check input{appearance:none;-webkit-appearance:none;width:21px;height:21px;min-height:21px;flex:0 0 21px;margin:4px 0;border:1.3px solid #bdc9c6;border-radius:7px;background:white;display:grid;place-items:center;transition:background .16s,border-color .16s}.check input:checked{background:var(--blue);border-color:var(--blue)}.check input:checked::after{content:'';width:9px;height:5px;border-left:1.7px solid white;border-bottom:1.7px solid white;transform:translateY(-1px) rotate(-45deg)}.reference h3{margin-top:22px;margin-bottom:5px;color:var(--blue);font-size:15px}.reference h2{font-size:21px}.reference .check+.check{border-top:1px solid #eef0e9}.reference .check:has(input:checked) span{color:#768078}.self-review h2{font-size:21px}.ratings{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:20px 0}.ratings button{padding:14px 4px;font-size:13px;border:1px solid var(--line);background:#fffaf4;border-radius:18px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:8px;min-height:80px}.ratings button.selected{color:var(--blue);background:var(--sky);border-color:#96aeb5}.ratings button .rating-dot{width:19px;height:19px;border-radius:50%;border:1.3px solid #b5c3bd;display:grid;place-items:center}.ratings button.selected .rating-dot{border-color:var(--blue);background:var(--blue)}.ratings button.selected .rating-dot::after{content:'✓';color:white;font-size:12px}.self-review .text-link{display:flex;justify-content:center;margin:8px auto 0}.completion{padding:35px 25px}.done-mark{width:64px;height:64px;display:grid;place-items:center;border:1px solid #d5e3d4;border-radius:50%;background:#e9f0e5;color:#75917a;margin:0 auto 22px}.done-mark .icon{width:28px;height:28px}.completion h2{font-size:26px;margin-bottom:10px}.summary-stats{display:grid;grid-template-columns:1fr 1fr;margin:27px 0;padding:18px;background:#f1f3ec;border-radius:20px;gap:12px}.summary-stats>div+div{border-left:1px solid #dce3d8}.summary-stats small,.summary-stats strong{display:block}.summary-stats strong{font-size:17px;color:var(--blue);margin-top:4px;font-variant-numeric:tabular-nums}.center{text-align:center}.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.guide-grid .card{margin:0;padding:20px}.guide-grid .eyebrow{margin-bottom:10px}.guide-grid p{font-size:14px}.hidden{display:none!important}.error{color:#ad493d!important;font-size:13px}.small-button{font-size:13px;color:var(--blue);padding:6px 10px;min-height:44px}.back{font-size:14px;color:var(--blue);padding-left:0}.sheet-success{width:44px;height:44px;background:var(--green);border-radius:50%;color:#66816d;display:grid;place-items:center;margin:5px 0 15px}
@keyframes sheet-in{from{opacity:0;transform:translateY(16px) scale(.99)}to{opacity:1;transform:none}}@keyframes sheet-out{to{opacity:0;transform:translateY(12px) scale(.99)}}@keyframes veil-in{from{opacity:0}to{opacity:1}}@keyframes veil-out{to{opacity:0}}@keyframes record-pulse{50%{transform:scale(1.12);opacity:.25}}@keyframes enter-page{from{opacity:.5;transform:translateY(7px)}to{opacity:1;transform:none}}
@media(hover:hover){button:hover:not(:disabled){filter:brightness(.985)}.mentor:hover{box-shadow:0 0 0 .65px #97a49c45,inset 0 1px 2px white,0 4px 12px #40544b0c}.row-card:hover{box-shadow:0 5px 14px #54738406}}
@media(max-width:850px){.layout{display:block;max-width:640px;padding:0 18px}.brand{display:none}.app{padding-bottom:112px}header{min-height:122px}nav{width:min(604px,calc(100vw - 36px));bottom:max(14px,env(safe-area-inset-bottom))}.hero{padding:24px 20px;min-height:258px}.hero h2{font-size:27px}.hero .copy{width:68%}.hero img{width:43%;max-height:223px;right:-13px}.hero-progress{max-width:190px}.hero-progress progress{width:97px}.preview-bar{font-size:10px;gap:12px}h1{font-size:36px}.card{padding:22px}.hero p{font-size:14px;max-width:190px}.row-card{padding:19px 17px}.row-card strong{font-size:16px}.hero .primary{font-size:13px;padding:8px 15px}.focus-layout #header{min-height:95px}.dialog-top h2{font-size:21px}dialog{position:fixed;inset:auto 0 0;margin:0;width:100%;max-width:none;max-height:calc(100dvh - 48px);border-radius:30px 30px 0 0;padding:26px 22px max(24px,env(safe-area-inset-bottom));box-shadow:0 -8px 60px #263c3b18}dialog::before{content:'';display:block;width:32px;height:4px;border-radius:4px;background:#cfd4cc;position:absolute;top:10px;left:calc(50% - 16px)}dialog[open]{animation:sheet-in .32s var(--ease)}.dialog-top{margin-top:4px}.dialog-top .circle{width:38px;min-width:44px;min-height:44px;border:0;background:#eeeee7}.dialog-hint{font-size:12px}.player{top:8px}.question{font-size:17px}.requirements{font-size:14px}.reference .check{font-size:15px}.preview-bar button{font-size:10px}.focus-layout .preview-bar{display:none}}
@media(max-width:370px){.layout{padding:0 14px}nav{width:calc(100vw - 28px)}.mentor{font-size:13px;padding-right:10px}.mentor img{width:32px;height:34px}.hero h2{font-size:25px}.hero .copy{width:72%}.hero p{font-size:13px;max-width:175px}.hero img{width:42%;right:-17px}.guide-grid{grid-template-columns:1fr}.step-line{font-size:10px}.row-card{gap:12px}.icon-tile{flex-basis:42px;width:42px;height:44px}.card{padding:19px}.actions{gap:8px}.actions>button{font-size:14px}.ratings{gap:5px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation:none!important;transition:none!important}button:active{transform:none!important}}

/* main is a programmatic reading target, not a control. Keep rings on actual controls. */
main:focus,main:focus-visible{outline:none}

html[data-touch-input] :is(button,a,input,textarea):focus-visible{outline:none}
html[data-touch-input] .training-search input:focus{box-shadow:none}
html[data-touch-input] .training-search:focus-within{border-color:#88a0aa}
html[data-touch-input] .exam-options input:focus-visible+span{outline:none}