.phonics-tool-page{--phonics-paper: #f7f2e8;--phonics-card: rgba(255, 253, 247, .84);--phonics-ink: #15343a;--phonics-muted: #55706d;--phonics-line: rgba(76, 91, 84, .23);--phonics-green: #3a8b79;--phonics-green-deep: #205347;--phonics-orange: #c95d31;min-height:100vh;overflow:hidden;background:var(--phonics-paper);color:var(--phonics-ink);font-family:Songti SC,STSong,"Noto Serif SC",Georgia,serif}.phonics-tool-page button{font:inherit}.phonics-tool-frame{width:min(1180px,calc(100% - 48px));margin-inline:auto}.phonics-tool-hero{position:relative;min-height:324px;overflow:hidden;border-bottom:1px solid var(--phonics-line);background:#f7f2e8}.phonics-hero-art{position:absolute;top:0;right:0;width:min(63vw,860px);height:100%;object-fit:cover;object-position:right center;mix-blend-mode:multiply;opacity:.96}.phonics-tool-hero .phonics-tool-frame{position:relative;z-index:1;padding:28px 0 30px}.phonics-back-link{display:inline-flex;align-items:center;gap:.55rem;padding:.56rem .95rem;border:1px solid rgba(163,112,64,.27);color:var(--phonics-ink);background:#fff5dec2;font-family:PingFang SC,Microsoft YaHei,sans-serif;font-size:.92rem;font-weight:600;transition:color .2s ease,transform .2s ease}.phonics-back-link:hover{color:var(--phonics-orange);transform:translate(-2px)}.phonics-back-link img{width:1rem;height:1rem}.phonics-hero-copy{max-width:670px;padding-top:30px}.phonics-tool-kicker{margin:0 0 .7rem;color:#273e43;font-family:Times New Roman,serif;font-size:.75rem;letter-spacing:.14em}.phonics-hero-copy h1{margin:0;color:#0d3036;font-size:clamp(2.5rem,4.1vw,3.72rem);font-weight:700;line-height:1.15;letter-spacing:.02em}.phonics-tool-subtitle{margin:.5rem 0 .8rem;color:#29424b;font-size:clamp(1rem,1.45vw,1.28rem);font-weight:700;line-height:1.6}.phonics-tool-intro{margin:0;max-width:585px;color:#2c4750;font-family:PingFang SC,Microsoft YaHei,sans-serif;font-size:1rem;line-height:1.75}.phonics-practice{margin-top:26px;padding:24px;border:1px solid var(--phonics-line);border-radius:16px;background:var(--phonics-card);box-shadow:0 12px 32px #3f3b2e0f}.phonics-practice-topbar{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;margin-bottom:18px}.phonics-filter-tabs,.phonics-accent-control{display:flex;gap:.55rem;flex-wrap:wrap}.phonics-filter-tabs button,.phonics-accent-control button{min-width:88px;padding:.57rem .86rem;border:1px solid #d5ddd9;border-radius:13px;color:#33505a;background:#f8faf8;cursor:pointer;font-family:PingFang SC,Microsoft YaHei,sans-serif;font-size:.88rem;transition:background .2s ease,color .2s ease,border-color .2s ease}.phonics-filter-tabs button:hover,.phonics-accent-control button:hover{border-color:#78a99e}.phonics-filter-tabs button.is-active{border-color:var(--phonics-green);color:#fff;background:var(--phonics-green)}.phonics-accent-control{gap:0;overflow:hidden;border:1px solid #d5ddd9;border-radius:9px}.phonics-accent-control button{min-width:38px;padding:.32rem .5rem;border:0;border-radius:0;font-family:Times New Roman,serif;font-size:.75rem}.phonics-accent-control button.is-active{color:#fff;background:var(--phonics-green-deep)}.phonics-progress-area{display:grid;grid-template-columns:auto auto;align-items:center;justify-content:end;gap:.32rem .85rem;min-width:205px}.phonics-progress-copy{display:flex;justify-content:space-between;grid-column:1 / -1;font-family:Times New Roman,serif;font-size:.84rem}.phonics-progress-copy strong{font-weight:400}.phonics-progress-track{grid-column:1 / -1;height:8px;overflow:hidden;border-radius:99px;background:#e2e5df}.phonics-progress-track span{display:block;width:0;height:100%;border-radius:inherit;background:#59aa96;transition:width .28s ease}.phonics-training-stage{display:grid;grid-template-columns:minmax(255px,.8fr) minmax(0,1.2fr);gap:16px}.phonics-symbol-card,.phonics-word-card{min-height:330px;border:1px solid var(--phonics-line);border-radius:12px;background:#fffdf8bd}.phonics-symbol-card{position:relative;display:grid;grid-template-rows:auto 1fr 1fr;gap:12px;padding:22px;overflow:hidden}.phonics-symbol-card:after{content:"";position:absolute;left:16px;bottom:14px;width:80px;height:55px;background:url(/images/tools/phonics-tool-hero-v1.png) left bottom / 360px auto no-repeat;opacity:.24;pointer-events:none}.phonics-card-label{display:flex;align-items:center;justify-content:space-between;gap:.75rem}.phonics-card-label span{padding:.36rem .76rem;color:#4d442d;background:#f6e5b7;font-size:.92rem;font-weight:700;transform:rotate(-3deg)}.phonics-card-label strong{padding:.28rem .65rem;border:1px solid #d4ded9;border-radius:10px;color:#36535c;background:#edf1ef;font-family:PingFang SC,Microsoft YaHei,sans-serif;font-size:.8rem;font-weight:600}.phonics-symbol-panel{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;justify-content:center;border:1px solid rgba(154,117,79,.24);background:#fff9e9a8}.phonics-symbol-panel p{margin:0;color:#36565e;font-family:Times New Roman,serif;font-size:.86rem;letter-spacing:.08em}.phonics-symbol-panel strong{margin-top:.2rem;font-family:Georgia,serif;font-size:clamp(2.55rem,4.2vw,4.15rem);font-weight:700;line-height:1}.phonics-word-card{padding:27px 40px}.phonics-word-heading{display:flex;align-items:center;gap:.75rem}.phonics-word-heading h2{margin:0;font-family:Georgia,Times New Roman,serif;font-size:clamp(2.35rem,4vw,3.55rem);line-height:1;letter-spacing:-.02em}.phonics-icon-button,.phonics-audio-button{display:inline-grid;place-items:center;flex:0 0 auto;border:1px solid #b8c8c7;border-radius:50%;color:var(--phonics-ink);background:#fffdfa;cursor:pointer;transition:border-color .2s ease,background .2s ease,transform .2s ease}.phonics-icon-button:hover,.phonics-audio-button:hover{border-color:var(--phonics-green);background:#eaf5f1;transform:translateY(-1px)}.phonics-icon-button{width:36px;height:36px}.phonics-audio-button{width:39px;height:39px}.phonics-icon-button img,.phonics-audio-button img{width:19px;height:19px}.phonics-star-button.is-starred{border-color:#d88041;background:#fff2d4}.phonics-star-button.is-starred img{filter:invert(48%) sepia(92%) saturate(850%) hue-rotate(345deg) brightness(91%)}.phonics-pronunciation-row{display:flex;align-items:center;gap:.85rem;margin-top:.72rem}.phonics-pronunciation-row>span{width:32px;color:#6e7d80;font-family:Times New Roman,serif;font-size:1rem}.phonics-pronunciation-row strong{min-width:102px;font-family:Georgia,serif;font-size:1.48rem;font-weight:400}.phonics-meaning{display:flex;align-items:center;gap:.85rem;margin:.8rem 0 1rem}.phonics-meaning em{padding:.25rem .58rem;border-radius:7px;color:#7b4b35;background:#fde2d2;font-family:Georgia,serif;font-size:.94rem}.phonics-meaning span{font-family:PingFang SC,Microsoft YaHei,sans-serif;font-size:1rem}.phonics-sentence-row{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-top:15px;border-top:1px dashed #c9cfca}.phonics-sentence,.phonics-sentence-zh{margin:0}.phonics-sentence{font-family:Georgia,Times New Roman,serif;font-size:clamp(1.25rem,2.1vw,1.67rem);line-height:1.4}.phonics-sentence-zh{margin-top:.3rem;color:#52676b;font-family:PingFang SC,Microsoft YaHei,sans-serif;font-size:.92rem}.phonics-meaning.is-hidden,.phonics-sentence-zh.is-hidden{visibility:hidden}.phonics-action-row{display:grid;grid-template-columns:1.08fr 1.6fr 1.08fr 1fr 1.16fr .82fr;gap:12px;margin-top:16px}.phonics-action-row button{display:inline-flex;align-items:center;justify-content:center;gap:.55rem;min-height:53px;border:1px solid #a8bab6;border-radius:10px;color:#183b43;cursor:pointer;font-family:PingFang SC,Microsoft YaHei,sans-serif;font-size:.92rem;font-weight:600;transition:transform .2s ease,filter .2s ease,background .2s ease}.phonics-action-row button:hover{transform:translateY(-1px);filter:brightness(.97)}.phonics-action-row img{width:18px;height:18px}.phonics-outline-action{background:#fffdf8}.phonics-random-action{border-color:#bf542d!important;color:#fffaf2!important;background:var(--phonics-orange)}.phonics-random-action img{filter:brightness(0) invert(1)}.phonics-repeat-action{border-color:#96c7ed!important;color:#216bb5!important;background:#eaf5ff}.phonics-repeat-action img{filter:invert(40%) sepia(60%) saturate(800%) hue-rotate(177deg)}.phonics-muted-action{color:#35505a!important;background:#f3f5f2}.phonics-inventory{margin-top:26px;padding:23px 26px 27px;border:1px solid var(--phonics-line);border-radius:14px;background:#fffdf8b3}.phonics-inventory-heading{display:flex;align-items:end;justify-content:space-between;gap:2rem}.phonics-inventory h2,.phonics-how h2{margin:0;font-size:clamp(1.75rem,3vw,2.25rem);line-height:1.2}.phonics-inventory-heading p{margin:.25rem 0 0;color:#50676d;font-family:PingFang SC,Microsoft YaHei,sans-serif;font-size:.92rem}.phonics-legend{display:flex;gap:1.25rem;color:#50676d;font-family:PingFang SC,Microsoft YaHei,sans-serif;font-size:.78rem;white-space:nowrap}.phonics-legend span{display:inline-flex;align-items:center;gap:.38rem}.phonics-legend i,.phonics-key i{display:inline-block;width:10px;height:10px;border-radius:50%;background:#daddd9}.phonics-legend i.is-current{background:#5ab29c;box-shadow:0 0 0 3px #d4eee6}.phonics-legend i.is-seen{background:#58a48f}.phonics-inventory-groups{display:grid;gap:13px;margin-top:19px}.phonics-inventory-group{display:grid;grid-template-columns:112px minmax(0,1fr);gap:16px;align-items:center}.phonics-inventory-group h3{margin:0;padding:.75rem .55rem;color:#263f44;background:#f3e4bf;font-family:Songti SC,STSong,serif;font-size:.92rem;font-weight:700;line-height:1.15;text-align:center;transform:rotate(-2deg)}.phonics-inventory-group h3 small{display:block;margin-top:.18rem;font-family:Times New Roman,serif;font-size:.6rem;font-weight:400}.phonics-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:8px}.phonics-key{position:relative;min-height:49px;border:1px solid #cdd6d2;border-radius:8px;color:#1d3941;background:#fcfaf5;cursor:pointer;font-family:Georgia,Times New Roman,serif;font-size:1rem;transition:border-color .2s ease,background .2s ease,transform .2s ease}.phonics-key:hover{border-color:#75aa9b;transform:translateY(-1px)}.phonics-key i{position:absolute;top:7px;right:7px;width:6px;height:6px}.phonics-key.is-seen i{background:#58a48f}.phonics-key.is-current{border-color:#65ae9b;background:#dff0e9;box-shadow:inset 0 0 0 1px #48968438}.phonics-key.is-current i{background:#5ab29c}.phonics-how{display:grid;grid-template-columns:1.25fr 2.2fr;gap:31px;align-items:stretch;margin-top:26px;padding:30px 26px;border-top:1px solid var(--phonics-line);border-bottom:1px solid var(--phonics-line)}.phonics-how-intro>p:not(.phonics-tool-kicker,.phonics-handwritten){margin:.5rem 0 0;color:#51696e;font-family:PingFang SC,Microsoft YaHei,sans-serif;font-size:.93rem;line-height:1.7}.phonics-handwritten{margin:1.35rem 0 0;color:#264b54;font-family:Kaiti SC,KaiTi,cursive;font-size:1.36rem;transform:rotate(-3deg)}.phonics-how-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:11px;margin:0;padding:0;list-style:none}.phonics-how-steps li{min-height:181px;padding:17px 14px;border:1px solid var(--phonics-line);border-radius:11px;background:#fffdf7bf}.phonics-how-steps img{width:27px;height:27px;filter:invert(43%) sepia(69%) saturate(800%) hue-rotate(340deg)}.phonics-how-steps h3{margin:.48rem 0 .35rem;color:#223e45;font-size:1rem}.phonics-how-steps p{margin:0;color:#51696e;font-family:PingFang SC,Microsoft YaHei,sans-serif;font-size:.78rem;line-height:1.62}.phonics-tool-footer{display:flex;align-items:center;justify-content:space-between;padding:25px 0 34px;color:#5e716f;font-family:Times New Roman,serif;font-size:.75rem;letter-spacing:.07em}.phonics-tool-footer p{margin:0}.phonics-tool-footer a{color:#254b52;font-size:.9rem;text-decoration:underline;text-underline-offset:.25em}@media(max-width:860px){.phonics-tool-hero{min-height:370px}.phonics-hero-art{top:auto;bottom:0;width:76vw;height:58%;opacity:.62}.phonics-hero-copy{max-width:100%}.phonics-practice-topbar,.phonics-inventory-heading{align-items:flex-start;flex-direction:column}.phonics-progress-area{width:100%;justify-content:start;grid-template-columns:auto minmax(150px,230px)}.phonics-training-stage{grid-template-columns:1fr}.phonics-symbol-card{min-height:250px}.phonics-action-row{grid-template-columns:repeat(3,minmax(0,1fr))}.phonics-inventory-group{grid-template-columns:94px minmax(0,1fr)}.phonics-grid{grid-template-columns:repeat(8,minmax(0,1fr))}.phonics-how{grid-template-columns:1fr}}@media(max-width:570px){.phonics-tool-frame{width:min(100% - 28px,1180px)}.phonics-tool-hero{min-height:420px}.phonics-tool-hero .phonics-tool-frame{padding-top:17px}.phonics-hero-copy{padding-top:22px}.phonics-hero-copy h1{font-size:2.2rem}.phonics-tool-subtitle{font-size:.96rem}.phonics-tool-intro{font-size:.88rem}.phonics-practice{padding:14px}.phonics-filter-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));width:100%;gap:7px}.phonics-filter-tabs button{min-width:0;padding-inline:.3rem;font-size:.78rem}.phonics-progress-area{grid-template-columns:auto 1fr}.phonics-word-card{padding:22px}.phonics-action-row{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.phonics-action-row button{min-height:48px;font-size:.84rem}.phonics-random-action{grid-column:span 2}.phonics-inventory{padding:18px 14px}.phonics-legend{gap:.6rem;font-size:.69rem;white-space:normal}.phonics-inventory-group{grid-template-columns:1fr;gap:7px}.phonics-inventory-group h3{justify-self:start;min-width:95px}.phonics-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.phonics-how{padding:23px 14px}.phonics-how-steps{grid-template-columns:repeat(2,minmax(0,1fr))}.phonics-tool-footer{gap:12px;align-items:start;flex-direction:column}}@media print{.phonics-tool-hero,.phonics-action-row,.phonics-tool-footer{display:none}.phonics-tool-page{background:#fff}.phonics-practice,.phonics-inventory,.phonics-how{box-shadow:none;break-inside:avoid}.phonics-practice{margin-top:0}}.checker{max-width:620px;margin:0 0 2rem;padding:1.8rem;border:1px solid rgba(23,36,32,.18);border-radius:var(--radius);background:#e8eee8}.checker h2{margin:0;font-family:Songti SC,STSong,serif;font-size:1.7rem}.checker-sound{margin:.8rem 0 .25rem!important;color:var(--forest);font-family:Times New Roman,serif;font-size:clamp(3.8rem,8vw,6rem);font-weight:700;line-height:1}.checker-hint{margin:0 0 1.4rem!important;color:#40524a;font-family:PingFang SC,Microsoft YaHei,sans-serif!important;font-size:.97rem!important;font-weight:400!important}.checker-button{border:0;cursor:pointer;font-family:inherit}