/* YuBao Speak — base identity (navy/blue, Tajawal). Brand assets are YuBao's. */
:root{--navy:#12264F;--blue:#1769EF;--ink:#172D55;--muted:#65748B;--line:#E3E8F2;--bg:#F7F9FC;--soft:#EDF4FF;--ok:#0E8F6E;--okbg:#E6F6F0;--bad:#C0304F;--badbg:#FFF0F3;--warn:#B7791F;--radius:22px;font-family:"Tajawal","IBM Plex Sans Arabic",Tahoma,Arial,sans-serif}
*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--ink)}
body{line-height:1.8;background:radial-gradient(ellipse at 0 5%,#E6EEFF 0,transparent 42%),var(--bg);min-height:100vh}
button,input{font:inherit}button{cursor:pointer;border:0;-webkit-tap-highlight-color:transparent}button:disabled{opacity:.45;cursor:not-allowed}
button:focus-visible,input:focus-visible,a:focus-visible{outline:3px solid #2C9ED5;outline-offset:2px}
h1,h2,h3,p{margin:0}[hidden]{display:none!important}
.shell{max-width:1200px;margin:0 auto;padding:18px 24px 10px}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);padding-bottom:14px}
.brand{background:#00072F;border-radius:12px;padding:4px 12px;line-height:0}.brand img{width:150px;height:auto}
.identity{display:flex;align-items:center;gap:14px}.kaikou-brand{display:flex;align-items:center;text-decoration:none;line-height:1}.kaikou-brand img{display:block;width:174px;height:auto}.brand{background:var(--navy);border-radius:10px;padding:6px 10px;line-height:0}.brand img{display:block;width:142px;height:auto}
.top-actions{display:flex;gap:14px;align-items:center}.private-pill{font-size:12px;color:#607387;display:flex;align-items:center;gap:8px}.private-pill i{width:7px;height:7px;border-radius:50%;background:#148474;box-shadow:0 0 0 4px #E0F2ED}
.quiet{background:none;color:var(--navy);font-weight:700;font-size:13px;min-height:40px}
.hero{position:relative;isolation:isolate;overflow:hidden;display:flex;align-items:center;min-height:390px;margin:22px 0 28px;padding:44px 42px;border:1px solid #203c75;border-radius:30px;background:radial-gradient(ellipse at 18% 12%,#1a4a9e 0,transparent 45%),linear-gradient(115deg,#0a1740 0%,#122a60 58%,#173e82 100%);box-shadow:0 24px 56px #11285124;color:#fff}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background-image:radial-gradient(#a9dcff90 1px,transparent 1.5px);background-size:34px 34px;opacity:.17;mask-image:linear-gradient(90deg,#000,transparent 58%)}
.hero-copy{position:relative;z-index:2;width:55%;margin-inline-start:auto}.hero .eyebrow{color:#83eaff}.hero h1{font-size:clamp(32px,4vw,50px);line-height:1.28;font-weight:800;margin:8px 0 12px;max-width:560px}.hero h1 span{color:#69ddff}.hero .lead{color:#e2ecff;font-size:17px;max-width:520px}.product-credit{font-size:13px;color:#c0d2f2;margin-top:14px;max-width:520px}.future-note{font-size:12px;color:#a9bcdf;margin-top:10px}.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}.hero-tags span{border:1px solid #ffffff36;background:#ffffff12;color:#f5fbff;border-radius:999px;padding:5px 12px;font-size:12px;font-weight:700;backdrop-filter:blur(8px)}
.hero-art{position:absolute;z-index:1;inset-block:0;left:0;width:57%;height:100%;overflow:hidden}.hero-art img{display:block;width:100%;height:100%;object-fit:contain;object-position:center 50%;filter:drop-shadow(0 16px 28px #06163755)}.hero-art span{position:absolute;left:22px;bottom:20px;background:#fff;color:var(--blue);border:1px solid #D9E6FB;border-radius:999px;padding:7px 15px;font-size:12px;font-weight:800;box-shadow:0 7px 22px #06163750}
.hero-orbit{position:absolute;z-index:0;border:1px solid #61cfff42;border-radius:50%;pointer-events:none}.orbit-one{width:310px;height:310px;left:14%;top:12%;box-shadow:0 0 36px #13a8ff12}.orbit-two{width:185px;height:185px;left:25%;top:28%;border-color:#bf8cff32}
.story-section{margin:0 0 26px}.story-heading{display:flex;align-items:end;justify-content:space-between;gap:16px;margin:0 2px 12px}.story-heading h2{font-size:22px;line-height:1.4}.story-heading>span{color:#71819c;font-size:12px}.story-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.story-card{overflow:hidden;border:0;border-radius:20px;background:transparent;box-shadow:none;transition:transform .2s}.story-card:hover{transform:translateY(-3px)}.story-card img{display:block;width:100%;aspect-ratio:1.55;object-fit:contain;background:transparent}.story-copy{padding:10px 17px 17px}.story-copy>span{color:var(--blue);font-size:11px;font-weight:800}.story-copy h3{font-size:17px;margin:4px 0}.story-copy p{color:var(--muted);font-size:13px;line-height:1.65}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 12px 40px #162B4C08;min-width:0}
.loader{margin-bottom:18px}.loader-row{display:flex;align-items:center;justify-content:space-between;gap:16px}.loader h2{font-size:18px}.loader p{font-size:13px;color:var(--muted)}
.bar{height:6px;border-radius:9px;background:#E9F0FC;margin-top:14px;overflow:hidden;direction:ltr}.bar span{display:block;height:100%;width:0;background:linear-gradient(90deg,#1769EF,#08A5B2);transition:width .2s}
.primary,.secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:10px 18px;border-radius:12px;font-weight:700;font-size:14px}
.primary{background:var(--blue);color:#fff}.secondary{background:var(--soft);color:var(--blue)}.full{width:100%;margin-top:12px}
.workspace{display:grid;grid-template-columns:320px minmax(0,1fr);gap:18px;align-items:start}
.practice-modes{display:flex;gap:7px;background:#F1F5FC;border-radius:13px;padding:5px;margin-bottom:12px}.practice-modes button{flex:1;min-height:42px;background:transparent;color:#526786;font-weight:700;border-radius:10px}.practice-modes button[aria-selected=true]{background:#fff;color:var(--blue);box-shadow:0 2px 9px #142A5420}
.practice>.practice-modes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.catalog-kind{margin-top:8px}.catalog-kind button{min-height:36px}.topic-select{width:100%;margin-bottom:10px;background:#F8FAFF;border:1px solid var(--line);border-radius:10px;color:var(--ink);padding:10px}.catalog-filter-label{display:block;color:var(--muted);font-size:13px;margin:8px 2px 4px}.pro-result{margin-top:14px;padding:18px;border:1px solid #D7E3F5;border-radius:16px;background:#F7FAFF}.pro-result h3{margin:0 0 10px}.pro-metric{display:inline-flex;gap:8px;margin:4px;padding:9px 12px;border-radius:10px;background:#fff;color:var(--ink)}.pro-score{font-size:32px;font-weight:800;color:var(--blue)}
.pro-note{margin:-5px 2px 12px;color:#71819C;font-size:12px;line-height:1.6}
.topic-panel{grid-column:1/-1;padding:18px 20px}.topic-panel-heading{display:flex;align-items:end;justify-content:space-between;gap:12px;margin-bottom:11px}.topic-panel-heading .eyebrow{margin:0}.topic-panel-heading h2{font-size:19px;line-height:1.35}.topic-panel-heading>span{color:#7b8ba3;font-size:12px}.topic-chips{display:flex;flex-wrap:wrap;gap:7px}.topic-chip{min-height:38px;padding:6px 13px;border:1px solid #e1e8f3;border-radius:999px;background:#f8faff;color:#526987;font-size:13px;font-weight:700;transition:background .15s,border-color .15s,color .15s,transform .15s}.topic-chip:hover{transform:translateY(-1px);border-color:#9abafa}.topic-chip[aria-pressed=true]{background:var(--blue);border-color:var(--blue);color:#fff;box-shadow:0 4px 12px #1769ef2b}
.mode-groups{display:grid;gap:12px;margin:0 0 16px}.mode-group{padding:14px;border:1px solid #e1e8f3;border-radius:17px;background:#fbfcff}.local-group{border-color:#cbdcff;background:linear-gradient(135deg,#f1f6ff,#fbfdff)}.mode-group-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 2px 10px}.mode-group-heading h2{font-size:16px;line-height:1.35}.mode-group-heading p{color:#7687a1;font-size:12px}.mode-recommend,.advanced-label{flex-shrink:0;border-radius:999px;padding:4px 10px;font-size:11px;font-weight:800}.mode-recommend{background:#e1f4ee;color:#147459}.advanced-label{background:#edf1f8;color:#657793;letter-spacing:.04em}.mode-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.mode-card{width:100%;min-width:0;min-height:74px;display:flex;align-items:center;gap:10px;padding:11px;border:1px solid #e2eaf5;border-radius:13px;background:#fff;color:var(--ink);text-align:right;transition:border-color .16s,background .16s,box-shadow .16s}.mode-card:hover{border-color:#9abafa;box-shadow:0 5px 16px #17335c12}.mode-card[aria-pressed=true]{border-color:var(--blue);background:#fff;box-shadow:0 0 0 2px #1769ef15,0 5px 14px #17335c0d}.mode-icon{flex:0 0 38px;width:38px;height:38px;padding:8px;border-radius:11px;background:#edf4ff;fill:none;stroke:var(--blue);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.mode-copy{display:grid;gap:1px;min-width:0}.mode-copy strong{font-size:14px}.mode-copy small{color:#7b8ba3;font-size:11px;line-height:1.35}.mode-chip{margin-inline-start:auto;flex-shrink:0;padding:3px 8px;border-radius:999px;background:#eef4fc;color:#647995;font-size:10px;font-weight:800}.advanced-card .mode-icon{background:#f0f3fa;stroke:#7588a5}.advanced-card[aria-pressed=true]{border-color:#687fa8;box-shadow:0 0 0 2px #687fa814}.advanced-card[aria-pressed=true] .mode-icon{background:#e8edf6;stroke:#405a83}
.mode-group{transition:border-color .18s,background .18s,box-shadow .18s}.local-group.is-active{border-color:#75a7ff;background:linear-gradient(135deg,#e8f1ff,#f7faff);box-shadow:0 0 0 2px #1769ef13}.advanced-group.is-active{border-color:#9a8de0;background:linear-gradient(135deg,#f1efff,#fbfaff);box-shadow:0 0 0 2px #7664d817}.advanced-group.is-active .advanced-card[aria-pressed=true]{border-color:#7967d5;background:#f8f7ff;box-shadow:0 0 0 2px #7967d520,0 5px 14px #3326740d}.advanced-group.is-active .advanced-card[aria-pressed=true] .mode-icon{background:#ece9ff;stroke:#6956c5}
.section-head{display:flex;align-items:center;gap:10px;margin-bottom:12px}.section-head h2{font-size:17px}.tiny{margin-inline-start:auto;font-size:11px;color:#8A97AA}
#search{width:100%;min-height:46px;padding:9px 12px;border:1px solid #D8E3F3;border-radius:11px;background:#FAFBFF;color:var(--ink);font-size:15px}
.levels{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0}.levels button{background:#F1F4F9;color:#5E7091;border-radius:9px;padding:6px 11px;font-size:12px;font-weight:700;min-height:36px}.levels button[aria-selected=true]{background:var(--blue);color:#fff}
.word-list{max-height:430px;overflow:auto;display:grid;gap:6px;padding-inline-end:2px}
.word-item{display:flex;align-items:center;gap:10px;text-align:right;background:#F8FAFF;border:1px solid #E6EDF8;border-radius:12px;padding:8px 12px;color:var(--ink)}
.word-item strong{font:500 22px "PingFang SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;min-width:52px}.word-item span{font:14px Arial,sans-serif;color:var(--blue);direction:ltr}.word-item small{margin-inline-start:auto;color:#7C8FAA;font-size:12px;max-width:45%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.word-item.sel{border-color:#7CA7F6;background:var(--soft)}.word-item .best{font:700 12px Arial,sans-serif;color:var(--ok)}
.word-stage{display:flex;align-items:center;justify-content:center;gap:36px;min-height:170px;padding:6px 8px 12px}
.word-display{text-align:center}.word-pinyin{font:500 26px Arial,sans-serif;color:var(--blue);direction:ltr}.word-hanzi{font:500 72px/1.3 "PingFang SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;letter-spacing:4px;color:#162D5C}.word-arabic{color:var(--muted);font-size:15px}
.pinyin-note{display:block;color:#8492A7;font-size:11px;line-height:1.4;margin-top:2px}
.word-actions{display:flex;flex-direction:column;align-items:center;gap:6px}.listen{background:var(--soft);color:var(--blue);border:1px solid #DAE7FE;border-radius:12px;padding:10px 16px;font-weight:700;min-height:46px}#levelTag{font-size:12px;color:#8393A9}
.audio-credit{color:#72849E;font-size:11px;line-height:1.2}
.record-button{width:100%;min-height:62px;border-radius:15px;background:var(--blue);color:#fff;font-size:18px;font-weight:800;display:flex;align-items:center;justify-content:center;gap:12px;box-shadow:0 8px 20px #1769EF26}
.record-button .dot{width:14px;height:14px;border-radius:50%;background:#fff}.recording .record-button{background:#B73455}.recording .record-button .dot{border-radius:3px;animation:pulse 1s infinite}.busy .record-button{background:#5B6F95}
@keyframes pulse{50%{opacity:.35}}
.level-meter{height:4px;border-radius:9px;background:#E9F0FC;margin:9px 4px;overflow:hidden;direction:ltr}.level-meter span{display:block;height:100%;width:0;background:#08A5B2;transition:width .1s linear}
.status{font-size:13px;text-align:center;color:#6D819D;min-height:28px}.status.error{background:var(--badbg);color:var(--bad);border-radius:10px;padding:6px}
.result{margin-top:14px;border-top:1px solid #EDF1F7;padding-top:16px}
.result-top{display:flex;gap:18px;align-items:center}
.score-ring{--s:0;--c:#0E8F6E;width:96px;height:96px;border-radius:50%;background:conic-gradient(var(--c) calc(var(--s)*1%),#E3ECF4 0);display:grid;place-items:center;flex-shrink:0;direction:ltr}
.score-ring>div{width:80px;height:80px;background:#fff;border-radius:50%;display:flex;align-items:baseline;justify-content:center;padding-top:22px}.score-ring strong{font:800 30px Arial,sans-serif}.score-ring small{font:11px Arial,sans-serif;color:#8AA}
.result-copy{flex:1;min-width:0}.result-copy h3{font-size:19px;margin-bottom:6px}
.meters>div{display:grid;grid-template-columns:52px 1fr 44px;align-items:center;gap:8px;font-size:13px;color:var(--muted)}.mbar{height:8px;border-radius:9px;background:#EDF1F7;overflow:hidden;direction:ltr}.mbar i{display:block;height:100%;width:0;background:var(--blue);transition:width .4s}.meters b{font:700 13px Arial,sans-serif;color:var(--ink);direction:ltr;text-align:left}
.syllables{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0 8px;justify-content:center}
.syl{min-width:128px;border:1px solid var(--line);border-radius:16px;padding:10px 12px;text-align:center;background:#FBFCFF}
.syl .t{font:700 22px Arial,sans-serif;direction:ltr;color:var(--ink)}.syl .h{font-size:13px;color:var(--muted)}
.syl .row{display:flex;justify-content:center;gap:6px;margin-top:6px;flex-wrap:wrap}.pill{font-size:12px;font-weight:700;border-radius:20px;padding:2px 10px}
.pill.ok{background:var(--okbg);color:var(--ok)}.pill.bad{background:var(--badbg);color:var(--bad)}.pill.na{background:#F1F4F9;color:#7A8AA4}
.tips{margin:6px 0 0;padding:0 18px;color:#40577E;font-size:14px}.tips li{margin:4px 0}
.result-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}.result-actions>*{flex:1}
.heard{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap;background:#F6F9FF;border:1px solid #E4ECF8;border-radius:12px;padding:9px 12px;margin-top:12px;color:#73849D;font-size:12px}.heard b{font:600 25px "PingFang SC","Noto Sans CJK SC",sans-serif;color:var(--ink)}.heard small{font-size:12px;color:var(--blue)}
.course-library{margin-top:18px}.course-library summary{cursor:pointer;font-weight:800;font-size:18px;color:var(--navy)}.course-library summary span{font-weight:500;font-size:12px;color:var(--muted);margin-inline-start:9px}.course-controls{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:18px}.course-controls label{font-size:12px;color:var(--muted);font-weight:700}.course-controls select{display:block;width:100%;height:44px;margin-top:4px;background:#F8FAFF;border:1px solid var(--line);border-radius:10px;color:var(--ink);padding:6px}.course-library audio{display:block;width:100%;margin:18px 0 8px}.course-options{display:flex;gap:18px;color:var(--muted);font-size:13px}.dialogue-lines{display:grid;gap:8px;margin-top:12px}.dialogue-line{background:#F8FAFF;border:1px solid var(--line);border-radius:11px;padding:8px 12px}.dialogue-line small{color:var(--blue);font-weight:700}.dialogue-line strong{display:block;font:500 21px/1.6 "PingFang SC","Noto Sans CJK SC",sans-serif}.dialogue-line .py{color:var(--blue);direction:ltr;text-align:right;font:13px Arial,sans-serif}.dialogue-line .ar{color:var(--muted);font-size:13px}
.catalog-controls{display:grid;grid-template-columns:180px 1fr;gap:10px;margin:18px 0 10px}.catalog-controls select,.catalog-controls input{min-width:0;height:44px;padding:6px 12px;background:#F8FAFF;border:1px solid var(--line);border-radius:10px;color:var(--ink)}.catalog-results{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;max-height:250px;overflow:auto}.catalog-results button{padding:6px 12px;min-height:42px;background:var(--soft);color:var(--blue);border-radius:10px}.catalog-results button[aria-pressed=true]{background:var(--blue);color:#fff}.catalog-results button[data-kind=hskWords]{font:500 19px "PingFang SC","Noto Sans CJK SC",sans-serif}
.write-result{margin-top:14px;padding:22px;border-radius:16px;background:#F5F8FF;text-align:center}.write-result>p:first-child{color:var(--muted);font-size:14px}.write-result strong{display:block;min-height:1.8em;font:600 42px/1.8 "PingFang SC","Noto Sans CJK SC",sans-serif;color:var(--navy)}#writeFeedback{color:var(--blue);font-weight:700}
.scope-note{font-size:12px;color:#7B88A0;margin:18px auto;max-width:900px;text-align:center}
footer{display:flex;align-items:center;justify-content:space-between;gap:10px;border-top:1px solid #E4EAF3;padding:12px 2px;font-size:12px;color:#7A8DAA}footer a{color:var(--blue)}footer button{background:none;color:#7A8DAA;font-size:12px;min-height:36px}
dialog{border:1px solid var(--line);border-radius:22px;padding:26px;width:min(560px,calc(100vw - 24px));max-height:85vh;overflow:auto;direction:rtl;color:var(--ink);font-family:inherit}dialog::backdrop{background:#0A204977;backdrop-filter:blur(4px)}
dialog h2{font-size:22px;margin-bottom:10px}dialog p{font-size:14px;color:#5F7390;margin:8px 0}.close{position:absolute;left:12px;top:12px;width:36px;height:36px;border-radius:50%;background:#F1F5FA;color:#7D8FAC;font-size:24px}
.dialog-actions{margin-top:14px}.hrow{display:flex;align-items:center;gap:12px;border-bottom:1px solid #EDF0F6;padding:9px 0}.hrow strong{font:500 21px "Noto Sans CJK SC",sans-serif;min-width:48px}.hrow div{flex:1;font-size:12px;color:#8193AD}.hrow b{font:700 18px Arial,sans-serif;color:var(--ok)}
@media(max-width:860px){.workspace{grid-template-columns:1fr}.word-list{max-height:220px}.hero{min-height:350px;padding:34px 28px}.hero-copy{width:65%}.hero-art{width:66%;opacity:.86}.story-grid{gap:10px}.story-copy{padding:12px}.practice{order:-1}}
@media(max-width:620px){.shell{padding:12px 12px 6px}.topbar{align-items:center}.brand img{width:72px}.identity{gap:6px}.kaikou-brand img{width:106px}.brand{padding:5px 6px}.private-pill{display:none}.hero{display:flex;flex-direction:column;align-items:stretch;min-height:0;margin:14px 0 22px;padding:24px 20px 0;border-radius:24px}.hero-copy{width:100%;margin:0}.hero h1{font-size:34px}.hero .lead{font-size:15px}.hero-tags{gap:6px;margin-top:14px}.hero-tags span{font-size:11px;padding:4px 9px}.hero-art{position:relative;inset:auto;width:calc(100% + 40px);height:auto;aspect-ratio:1.55;margin:12px -20px 0;opacity:1}.hero-art img{mask-image:linear-gradient(180deg,#000 74%,transparent 100%);object-position:center 42%}.hero-art span{left:12px;bottom:12px;font-size:10px}.hero-orbit{display:none}.story-heading{align-items:start;flex-direction:column;gap:4px}.story-heading h2{font-size:20px}.story-grid{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;padding:2px 1px 12px}.story-card{flex:0 0 min(82vw,330px);scroll-snap-align:start}.topic-panel{padding:15px}.topic-panel-heading{align-items:start;flex-direction:column;gap:2px}.topic-panel-heading h2{font-size:18px}.topic-chip{min-height:36px;padding:5px 11px;font-size:12px}.mode-group{padding:11px}.mode-grid{grid-template-columns:1fr;gap:7px}.mode-card{min-height:66px}.mode-group-heading h2{font-size:15px}.word-hanzi{font-size:58px}.word-stage{flex-direction:column;gap:10px;min-height:0}.syl{min-width:0;flex:1}.loader-row{flex-direction:column;align-items:stretch}.result-top{gap:12px}.score-ring{width:80px;height:80px}.score-ring>div{width:66px;height:66px;padding-top:16px}.score-ring strong{font-size:24px}footer{flex-wrap:wrap;justify-content:center;text-align:center}}
@media(max-width:620px){.course-controls{grid-template-columns:1fr}.course-library summary span{display:block;margin:0}}
@media(max-width:620px){.catalog-controls{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
@media(min-width:861px){.hero-copy{width:49%;margin-inline-start:0}.hero-art{width:49%}}
@media(max-width:860px) and (min-width:621px){.hero{min-height:330px;padding:30px 26px}.hero-copy{width:56%;margin-inline-start:0}.hero-art{width:44%;opacity:.78}.hero h1{font-size:clamp(28px,4vw,40px)}.hero .lead{font-size:15px}.hero-tags span{font-size:11px}}