@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;600;700;800;900&family=Zen+Maru+Gothic:wght@400;500;700;900&display=swap');
:root{font-family:'Noto Sans JP',sans-serif;color:#2e3e35;background:#f8f9f5;font-synthesis:none;--green:#315b45;--muted:#7f8b81;--line:#e7ebe3;--gold:#f2c95d;--round:'Zen Maru Gothic',sans-serif}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button{color:inherit}button:disabled{cursor:not-allowed;opacity:.48}a{color:var(--green)}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #d89e22;outline-offset:4px}button{border:0}aside{position:fixed;inset:0 auto 0 0;width:224px;background:#fffefa;border-right:1px solid var(--line);padding:33px 19px 22px;display:flex;flex-direction:column;z-index:10}.brand{display:flex;gap:9px;align-items:center;padding:0 8px 39px}.brand .sun{font-size:35px}.brand strong{font-family:var(--round);font-size:19px;font-weight:900;letter-spacing:-.7px}.brand small{display:block;color:#8c947e;font-size:9px;letter-spacing:2px;margin-top:3px}.nav-label{font-size:10px;color:#9aa497;letter-spacing:1.6px;margin:0 16px 13px}nav{display:grid;gap:7px}nav button{text-align:left;padding:14px 16px;background:none;border-radius:11px;color:#7a867a;font-size:13px;font-weight:600;display:flex;gap:13px;align-items:center}nav button span{font-size:19px;width:23px;text-align:center}nav button.active{background:#eaf1e7;color:var(--green)}nav button:hover{background:#f1f4eb}.sidebar-note{margin:40px 8px 20px;border:1px solid #eee9d7;padding:16px 13px;border-radius:14px;background:#fffdf3;font-size:11px;line-height:1.9;color:#8b8366}.sidebar-note strong{display:block;color:#6d6b4b;margin-bottom:6px}.side-bottom{margin-top:auto}.profile-button{display:flex;align-items:center;gap:10px;background:#f5f7f0;width:100%;border-radius:12px;padding:12px 9px;text-align:left}.profile-button strong{display:block;font-size:12px}.profile-button small{font-size:10px;color:var(--muted)}.avatar{width:40px;height:40px;flex-shrink:0;border-radius:50%;display:inline-block;background:#f3ecd1 url('assets/characters.png') no-repeat;background-size:240px 160px;border:2px solid #fff;vertical-align:middle}.avatar[data-i='0']{background-position:-4px -2px}.avatar[data-i='1']{background-position:-52px -2px}.avatar[data-i='2']{background-position:-100px -2px}.avatar[data-i='3']{background-position:-148px -2px}.avatar[data-i='4']{background-position:-195px -2px}.avatar[data-i='5']{background-position:-4px -75px}.avatar[data-i='6']{background-position:-52px -75px}.avatar[data-i='7']{background-position:-100px -75px}.avatar[data-i='8']{background-position:-148px -75px}.avatar[data-i='9']{background-position:-194px -75px}.avatar[data-i='10']{background-position:-83px -123px}.avatar[data-i='11']{background-position:-126px -123px}.local-label{font-size:9px;color:#a0a89b;text-align:center;margin-top:16px}main{margin-left:224px;padding:0 40px 38px;max-width:1700px}.topbar{height:91px;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:#899285}.topbar b{color:#556a57;font-weight:500}.top-right{display:flex;align-items:center;gap:18px}.point-pill{background:#fff5d9;border:1px solid #f1e5ba;border-radius:24px;padding:9px 15px;color:#6e612e;font-weight:700}.point-pill span{margin-right:8px}.top-help{background:white;border:1px solid var(--line);border-radius:50%;width:29px;height:29px;color:#8c9689}.hero{position:relative;min-height:330px;border-radius:22px;overflow:hidden;background:#edf3e6;border:1px solid #e3ebd9;display:flex}.hero-copy{position:relative;z-index:2;padding:35px 30px 30px;width:49%}.eyebrow{display:inline-flex;gap:6px;align-items:center;color:#6b7e48;font-weight:600;font-size:10px;letter-spacing:1.5px;background:#ffffffa8;border:1px solid #dce6cf;border-radius:20px;padding:7px 12px}.hero h1{font-family:var(--round);font-weight:900;font-size:37px;line-height:1.55;letter-spacing:1px;margin:18px 0 12px}.hero h1 em{font-style:normal;position:relative;white-space:nowrap}.hero h1 em:after{content:'';position:absolute;height:8px;background:#f0d570b0;bottom:1px;left:0;right:0;z-index:-1;border-radius:4px}.hero p{font-size:12px;line-height:1.95;color:#7c8b70;margin:0 0 22px}.primary{background:var(--green);color:white;border:1px solid var(--green);padding:13px 21px;border-radius:9px;font-size:12px;font-weight:700;display:inline-flex;gap:19px;align-items:center;justify-content:center}.primary:hover{background:#214831}.hero-art{position:absolute;right:0;bottom:0;top:0;width:53%;background-image:url('assets/characters.png');background-size:contain;background-position:center;background-repeat:no-repeat;mix-blend-mode:multiply}.hero-art:after{content:'ひまわり学園のみんなと、いっしょに。';position:absolute;bottom:9px;left:0;right:0;text-align:center;font-size:10px;letter-spacing:1px;color:#66724a}.hero .sparkle{position:absolute;color:#c9b967;font-size:25px;right:25px;top:16px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin:23px 0 33px}.stat{border:1px solid var(--line);border-radius:13px;background:#fff;padding:18px 22px;display:flex;align-items:center;gap:16px}.stat-icon{width:44px;height:44px;border-radius:12px;background:#f5f2df;display:grid;place-items:center;font-size:22px}.stat:nth-child(2) .stat-icon{background:#edf4ed}.stat:nth-child(3) .stat-icon{background:#f6eee9}.stat small{color:#8c9588;font-size:10px}.stat strong{display:block;font-size:24px;line-height:1.3;letter-spacing:.5px}.stat strong span{font-size:11px;font-weight:500;margin-left:5px;color:#7f8b77}.section-top{display:flex;align-items:end;justify-content:space-between;margin-bottom:20px;gap:15px}.section-top h2,.page-title{font-family:var(--round);font-size:22px;font-weight:900;margin:0 0 6px}.section-top p,.page-intro{font-size:11px;color:#92998c;margin:0;line-height:1.8}.search{position:relative}.search input{width:228px;border:1px solid var(--line);border-radius:9px;background:white;padding:11px 12px 11px 35px;font-size:11px}.search:before{content:'⌕';position:absolute;left:12px;top:5px;font-size:23px;color:#87927f}.filters{display:flex;gap:8px;margin:0 0 22px;flex-wrap:wrap}.filters button{padding:8px 17px;font-size:11px;border:1px solid var(--line);border-radius:22px;background:transparent;color:#819079}.filters button.active{background:var(--green);border-color:var(--green);color:white}.grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}.category{position:relative;border:1px solid var(--line);border-radius:14px;background:white;padding:0;overflow:hidden;text-align:left;transition:transform .2s,box-shadow .2s}.category:hover{transform:translateY(-4px);box-shadow:0 7px 20px #365d4512}.category .card-art{height:106px;display:grid;place-items:center;background:var(--tint);position:relative;overflow:hidden}.card-art:before{content:'';position:absolute;width:81px;height:81px;background:#ffffff63;border-radius:50%;top:12px}.card-art .emoji{font-size:55px;position:relative;filter:drop-shadow(0 4px 1px #4550290b)}.card-number{position:absolute;right:10px;top:8px;color:#778572;font-size:9px;letter-spacing:1px}.card-body{padding:14px 13px 12px}.card-body h3{font-family:var(--round);font-size:15px;font-weight:900;margin:0 0 5px}.card-body p{font-size:9px;color:#969e91;margin:0 0 12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.card-footer{display:flex;justify-content:space-between;color:#8e9788;font-size:9px;border-top:1px solid #f0f2ed;padding-top:10px}.card-footer .go{color:#53714f;font-size:14px;line-height:1}.card-clear{position:absolute;left:9px;top:8px;background:#fff9dc;border-radius:12px;padding:3px 7px;font-size:9px;color:#83712d}.footer{margin-top:34px;padding-top:18px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:10px;font-size:9px;color:#a0a598}.footer button{background:none;color:#8b9584;font-size:9px;text-decoration:underline}.resume{margin-top:17px;border:1px solid #d7dfc9;background:#f5f8ee;border-radius:12px;padding:15px 20px;display:flex;justify-content:space-between;align-items:center;font-size:12px;gap:12px}.secondary{background:white;border:1px solid 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.crown{font-size:60px}.result h1{font-family:var(--round);font-size:30px}.score-big{font-size:68px;font-weight:800;color:#45663c;margin:10px}.score-big small{font-size:19px;color:#a5ae99}.result p{font-size:13px;line-height:1.9;color:#89977e}.result .actions{display:flex;gap:12px;justify-content:center}.reward{background:#fff6d4;border:1px solid #eee1a9;border-radius:14px;padding:16px;margin:25px 0;color:#8e782e;font-size:14px}.panel{border:1px solid var(--line);border-radius:17px;padding:24px;background:white;margin-top:23px}.reward-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:25px 0}.reward-card{padding:21px;background:#fbf7e9;border:1px solid #ebe2c2;border-radius:13px;text-align:center}.reward-card b{font-size:26px;display:block;margin:10px}.reward-card small{font-size:11px;color:#97865d}.leader-table{width:100%;border-collapse:collapse;text-align:left;font-size:12px}.leader-table th{color:#96a087;font-weight:500;font-size:10px;padding:14px;border-bottom:1px solid var(--line)}.leader-table td{padding:16px 14px;border-bottom:1px solid #f0f2ea}.leader-table .avatar{margin-right:10px}.empty{text-align:center;padding:48px 20px;color:#97a187;font-size:12px;line-height:2}.empty .large{font-size:42px;margin-bottom:14px}.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:25px}.frame{background:#fbf6e6;border:10px ridge #d7b775;box-shadow:0 6px 15px #42301412;border-radius:3px;text-align:center;padding:25px 18px;position:relative}.frame .crown{font-size:38px}.frame .avatar{display:block;margin:12px auto;transform:scale(1.5)}.frame h3{font-family:var(--round);margin-top:25px}.frame p{font-size:10px;color:#9f8f62}.frame.empty-frame{opacity:.65;min-height:250px;display:grid;place-content:center}.family-image{width:100%;max-width:950px;margin:20px auto;display:block;mix-blend-mode:multiply}.rules{font-size:13px;line-height:2;color:#6d8061}.rules h3{color:#38533c;font-family:var(--round);margin-top:27px}.rules p{margin-top:6px}.rules li{margin-bottom:10px}.badge{display:inline-block;padding:5px 10px;border-radius:20px;background:#eef2e6;color:#789261;font-size:10px}.notice{border:1px solid #ecdfb5;background:#fff9e6;border-radius:10px;padding:12px 16px;font-size:11px;color:#9b8650;line-height:1.8;margin:20px 0}#toast{position:fixed;bottom:27px;left:50%;transform:translateX(-50%) translateY(15px);padding:13px 23px;background:#2d513e;color:white;font-size:12px;border-radius:12px;z-index:100;opacity:0;pointer-events:none;transition:.2s}#toast.show{opacity:1;transform:translateX(-50%) translateY(0)}.mobile-brand{display:none}.wide{width:100%}.muted{color:var(--muted)}
@media(min-width:1500px){main{padding-left:55px;padding-right:55px}.hero{min-height:370px}.hero h1{font-size:44px}.hero-copy{padding:40px}.card-art{height:130px!important}}
@media(max-width:1180px){aside{width:193px;padding-left:13px;padding-right:13px}main{margin-left:193px;padding:0 25px 30px}.brand{padding-left:0}.brand strong{font-size:17px}.grid{grid-template-columns:repeat(4,1fr)}.hero h1{font-size:30px}.hero-copy{padding:28px 23px}.hero-art{width:50%}.hero{min-height:305px}.stat{padding:16px 14px}.stat-icon{width:38px;height:38px}.stat{gap:10px}}
@media(max-width:850px){aside{width:78px;padding:24px 10px}.brand{padding:0 0 28px;justify-content:center}.brand div,.nav-label,nav button .nav-text,.sidebar-note,.profile-button div,.local-label{display:none}nav button{padding:14px;justify-content:center}nav button span{font-size:21px}.profile-button{padding:8px;justify-content:center}main{margin-left:78px;padding:0 23px 30px}.hero h1{font-size:27px}.hero-copy{width:53%;padding:28px 20px}.hero p{font-size:11px}.grid{grid-template-columns:repeat(3,1fr)}.topbar{height:75px}.stat strong{font-size:21px}.stat-icon{display:none}}
@media(max-width:580px){aside{inset:auto 0 0;width:100%;height:65px;padding:3px 8px;background:#fffef9f5;border-top:1px solid var(--line);border-right:0;backdrop-filter:blur(12px)}aside .brand,.side-bottom{display:none}aside nav{display:flex;justify-content:space-around;gap:0}nav button{padding:7px 8px;flex-direction:column;gap:2px;border-radius:9px;font-size:9px}nav button .nav-text{display:block;font-size:8px}nav button span{font-size:18px}.mobile-brand{display:inline;font-family:var(--round);font-weight:900;color:var(--green);font-size:15px}.breadcrumb{display:none}main{margin-left:0;padding:0 17px 93px}.topbar{height:71px}.top-right{gap:8px}.point-pill{font-size:10px;padding:8px 10px}.hero{display:block;min-height:470px;border-radius:18px}.hero-copy{width:100%;padding:24px 22px}.hero h1{font-size:30px;line-height:1.4;margin:12px 0 8px}.hero p{font-size:10px;margin-bottom:13px;max-width:230px}.hero-art{top:auto;bottom:7px;width:100%;height:215px;opacity:.98}.hero-art:after{bottom:0;font-size:8px}.hero .sparkle{right:26px;top:85px}.eyebrow{font-size:8px;padding:5px 9px}.primary{font-size:11px;padding:11px 17px}.stats{gap:7px;margin:14px 0 29px}.stat{padding:13px 10px;border-radius:10px}.stat small{font-size:8px}.stat strong{font-size:20px}.stat strong span{font-size:9px;margin-left:2px}.section-top{flex-wrap:wrap;margin-bottom:14px}.section-top h2{font-size:21px}.section-top p{font-size:10px}.search,.search input{width:100%}.filters{gap:6px;margin-bottom:17px}.filters button{font-size:10px;padding:7px 12px}.grid{grid-template-columns:repeat(2,1fr);gap:12px}.category .card-art{height:104px}.card-body{padding:13px 12px}.footer{flex-direction:column;font-size:8px}.quiz-wrap{margin:0}.quiz-top h2{font-size:17px}.quiz-top .secondary{padding:8px 10px;font-size:10px}.question-card{padding:17px 13px}.question-card h1{font-size:19px}.question-image{height:235px}.question-image .flag{font-size:132px}.question-image .glyph{font-size:62px;letter-spacing:3px}.options{gap:8px}.option{font-size:11px;padding:10px 8px;gap:7px;min-height:66px}.option span:first-child{width:22px;height:22px;font-size:10px}.quiz-guide{font-size:10px}.reward-cards{gap:7px}.reward-card{padding:13px 6px;font-size:11px}.reward-card b{font-size:21px}.reward-card small{font-size:9px}.panel{padding:16px;overflow:auto}.leader-table td,.leader-table th{padding:10px 7px;white-space:nowrap}.leader-table .avatar{display:none}.gallery-grid{grid-template-columns:1fr}.result{padding:25px 18px;margin-top:10px}.result h1{font-size:25px}dialog{padding:23px 18px}.avatar-options{gap:4px}.avatar-choice .avatar{width:36px;height:36px}.resume{font-size:10px;padding:11px}.page-title{font-size:24px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
/* Keep navigation labels horizontal; the icon width must not constrain text. */
nav button .nav-text{width:auto;font-size:12px;white-space:nowrap;text-align:left;flex:1}.brand{gap:6px;padding-left:3px;padding-right:0}.brand .sun{font-size:30px}.brand strong{font-size:17px;letter-spacing:-1px;white-space:nowrap}.brand small{font-size:8px}.hero-art:after{background:#edf3e6e6;bottom:0;padding:5px}.image-credit{font-size:9px;color:#86907c;line-height:1.7;text-align:left;margin:0 0 15px;overflow-wrap:anywhere}.image-credit summary{cursor:pointer;text-align:center}.image-credit a{color:#697c59}.image-credit p{margin:5px 0}.blocked-chip{position:absolute;top:8px;left:8px;background:#fff9e9;border-radius:20px;padding:3px 7px;color:#8d7747;font-size:9px}
@media(max-width:850px){nav button .nav-text{display:none}}
@media(max-width:580px){nav button .nav-text{display:block;font-size:8px;text-align:center}.brand strong{font-size:17px}}

/* Quiz subjects must be visible in full at every difficulty and viewport. */
.question-image img{width:100%;height:100%;object-fit:contain;padding:12px;transform:none!important}
.question-image.hard img,.question-image.hard .flag{transform:none}.question-image.hard .glyph{filter:none}

.home-actions{display:flex;gap:10px;flex-wrap:wrap;position:relative;z-index:2}.home-actions button{min-height:44px}.save-note{display:block;max-width:340px;font-size:11px;line-height:1.7;margin-top:10px;color:#6d8061}.hero{min-height:390px}.metric-note{font-size:12px;line-height:1.8;color:#6d8061}.achievement-track{height:15px;border-radius:20px;background:#e5ecdd;overflow:hidden}.achievement-track span{display:block;height:100%;background:#63874c}.progress-courses{display:grid;grid-template-columns:repeat(auto-fit,minmax(235px,1fr));gap:16px;margin-top:24px}.course-progress{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px}.course-progress h2{font-size:19px;margin:0 0 14px}.course-progress p{font-size:13px}.level-status{display:flex;gap:7px;margin:15px 0}.level-status span{border-radius:8px;background:#f0f1ea;padding:8px;font-size:12px;color:#7f8975}.level-status .achieved{background:#e6f2d9;color:#335c29;font-weight:bold}.resume{gap:12px}.resume>span{line-height:1.8}@media(max-width:580px){.hero{min-height:570px}.home-actions{max-width:100%}.home-actions button{font-size:12px}.hero-art{height:200px}aside nav button{padding:7px 4px}nav button .nav-text{font-size:8px}.progress-courses{grid-template-columns:1fr}.stats .metric-note{font-size:10px}.resume{align-items:center}}

.sound-controls{display:flex;gap:5px}.sound-controls button{background:#eef2e6;color:#3c5937;border:1px solid #d5dfc9;border-radius:9px;padding:8px;font-size:11px;white-space:nowrap;min-height:36px}.sound-controls button[aria-pressed="true"]{background:#365d4a;color:white}@media(max-width:580px){.topbar{flex-wrap:wrap;height:auto;min-height:92px;gap:8px;padding:12px 0}.top-right{flex-wrap:wrap}.sound-controls button{font-size:10px;padding:7px}.top-right>.avatar{display:none}}

.gallery-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.gallery-heading .page-title{margin-bottom:0}.gallery-return{text-align:center;margin:30px 0 15px}.gallery-return button,.gallery-heading button{min-height:46px}.gallery-return p{font-size:12px;color:#6d8061}

/* Keep the existing quiz order, with a compact viewport-aware rhythm. */
main:has(.quiz-wrap) .topbar{height:62px;min-height:62px;padding-top:6px;padding-bottom:6px}
.quiz-wrap{max-width:820px;margin:4px auto}
.quiz-top{margin-bottom:10px}
.quiz-top small{font-size:10px}
.quiz-top .secondary{min-height:40px;padding:9px 12px}
.progress-info{margin-bottom:5px}
.question-card{margin-top:10px;padding:14px 20px;border-radius:16px}
.question-card h1{font-size:20px;margin:0 0 5px}
.question-note{margin:0 0 7px;line-height:1.5}
.question-image{height:clamp(150px,29dvh,235px);margin-bottom:7px}
.question-image img{padding:5px}
.question-image .flag{font-size:clamp(100px,20dvh,145px)}
.question-image .swatch{width:clamp(110px,20dvh,150px);height:clamp(110px,20dvh,150px)}
.question-image .glyph{font-size:clamp(52px,10dvh,72px)}
.image-credit{margin-bottom:7px;line-height:1.5}
.options{gap:8px}
.option{min-height:46px;padding:8px 12px;font-size:13px;gap:10px}
.feedback{margin-top:9px;padding:10px 12px}
.feedback strong{font-size:19px}
.feedback p{margin:4px 0 7px;line-height:1.5}
.feedback .primary,.feedback .secondary{min-height:42px;padding:9px 15px}
.quiz-guide{margin-top:9px}
@media(max-width:580px){
 main:has(.quiz-wrap){padding-left:12px;padding-right:12px}
 main:has(.quiz-wrap) .topbar{height:auto;min-height:78px;gap:4px;padding-top:6px;padding-bottom:6px}
 .quiz-top{margin-bottom:7px;gap:8px}
 .quiz-top h2{font-size:16px}.quiz-top .badge{font-size:9px;padding:4px 7px}
 .quiz-top .secondary{min-height:40px;padding:8px;font-size:10px}
 .question-card{padding:10px 11px;margin-top:8px}
 .question-card h1{font-size:18px}.question-note{font-size:10px;margin-bottom:5px}
 .question-image{height:clamp(125px,25dvh,195px);margin-bottom:5px}
 .question-image .flag{font-size:110px}.question-image .glyph{font-size:52px;letter-spacing:2px}
 .options{gap:6px}.option{min-height:46px;padding:7px 6px;font-size:11px;gap:5px;overflow-wrap:anywhere}
 .feedback{padding:8px;margin-top:7px}.feedback strong{font-size:18px}.feedback p{font-size:11px}
 .feedback .primary,.feedback .secondary{min-height:42px;padding:9px 12px}
 .quiz-guide{margin-top:7px}
}
@media(max-width:580px) and (max-height:720px){
 .quiz-top small{display:none}.quiz-top{min-height:40px}.quiz-top h2{font-size:14px}
 .question-card h1{line-height:1.35}
 .question-image{height:125px}
 .feedback strong{line-height:1.3;display:block}
 .feedback p{margin:3px 0 5px}
}

.brand .producer-credit{display:block;margin-top:3px}.hero .title-credit{font-size:11px;line-height:1.6;margin:4px 0 12px;color:#506b43;letter-spacing:.15px}@media(max-width:580px){.hero{min-height:620px}.hero .title-credit{font-size:10px}}

dialog:has(#opening-video){width:min(960px,94vw);max-width:94vw;padding:22px}#opening-video{display:block;aspect-ratio:16/9;object-fit:contain}dialog:has(#opening-video) .fine{margin:8px 0}@media(max-width:580px){dialog:has(#opening-video){padding:14px;width:96vw;max-width:96vw}}

/* Completed difficulty: a crown stamp between the description and arrow. */
.level>div{flex:1;min-width:0}.level-arrow{margin-left:auto;flex-shrink:0}.level-clear-stamp{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:0 0 64px;width:64px;height:64px;border:2px solid #b6892d;outline:1px solid #d9bd79;outline-offset:-5px;border-radius:50%;color:#916419;background:#fff7db;transform:rotate(-10deg);box-shadow:1px 2px 0 #eadba9;gap:1px}.level-clear-stamp>span{font-size:24px;line-height:1}.level-clear-stamp>b{font-size:12px;letter-spacing:1px;line-height:1.4}@media(max-width:580px){.level{gap:8px;padding:12px 10px}.level-clear-stamp{flex-basis:52px;width:52px;height:52px}.level-clear-stamp>span{font-size:20px}.level-clear-stamp>b{font-size:11px}}