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var(--safe-b));display:block;font-size:19px;z-index:999;text-decoration:none;transition:transform var(--dur-2) var(--ease-out),box-shadow var(--dur-2) var(--ease)}._seal_19ixd_3:hover{transform:translateY(-2px) scale(1.05)}._seal_19ixd_3:active{transform:scale(.94)}._lifted_19ixd_23{bottom:calc(var(--bar-h) + var(--sp-3) + var(--safe-b))}@media print{._seal_19ixd_3{display:none}}:root{--bg: #f3eee2;--bg-warm: #f7e8d3;--paper: #fffdf8;--paper-2: #f6f1e6;--paper-3: #eee6d4;--ink: #352c22;--ink-2: #6b6151;--ink-3: #a89c87;--line: #e4d9c6;--line-soft: #efe7d8;--brand: #d96a2c;--brand-deep: #bd551f;--brand-tint: #fae7d4;--brand-tint-2: #f5d3b4;--brand-glow: rgba(217, 106, 44, .26);--brand-grad: linear-gradient(135deg, #e0762f 0%, #cf5d22 100%);--jade: #2e857a;--jade-deep: #226d63;--jade-tint: #dcebe6;--jade-grad: linear-gradient(135deg, #36968a 0%, #277468 100%);--seal: #b23b2a;--seal-deep: #972f21;--seal-grad: linear-gradient(160deg, #c14834 0%, #9d3223 100%);--gilt: #c3a163;--gilt-line: linear-gradient(90deg, transparent, rgba(195, 161, 99, .55), transparent);--subj-chinese: #c1543e;--subj-math: #3f6fa3;--subj-english: #2e857a;--paper-grain: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)' opacity='0.045'/%3E%3C/svg%3E");--font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", "Segoe UI", sans-serif;--font-serif: "Songti SC", "STSong", "Source Han Serif SC", "Noto Serif CJK SC", "STZhongsong", "SimSun", serif;--font-num: "SF Pro Display", var(--font-sans);--fs-display: clamp(30px, 4.2vw, 40px);--fs-title: clamp(21px, 2.6vw, 26px);--fs-head: 18px;--sp-1: 4px;--sp-2: 8px;--sp-3: 12px;--sp-4: 16px;--sp-5: 20px;--sp-6: 24px;--sp-8: 32px;--sp-10: 40px;--sp-12: 48px;--r-1: 8px;--r-2: 12px;--r-3: 16px;--r-4: 20px;--r-pill: 999px;--sh-1: 0 1px 2px rgba(56, 47, 37, .06), 0 2px 6px rgba(56, 47, 37, .05);--sh-2: 0 1px 2px rgba(56, 47, 37, .05), 0 4px 10px rgba(56, 47, 37, .06), 0 12px 26px rgba(56, 47, 37, .07);--sh-3: 0 2px 4px rgba(56, 47, 37, .06), 0 10px 24px rgba(56, 47, 37, .1), 0 34px 70px rgba(56, 47, 37, .13);--sh-card: 0 1px 1px rgba(56, 47, 37, .04), 0 3px 8px rgba(56, 47, 37, .05), 0 10px 24px rgba(56, 47, 37, .07);--sh-brand: 0 6px 20px var(--brand-glow);--sh-seal: 0 4px 14px rgba(178, 59, 42, .32);--sh-inset-line: inset 0 0 0 1px rgba(255, 255, 255, .6);--sh-bookedge: 0 1px 1px rgba(56, 47, 37, .05), 0 4px 10px rgba(56, 47, 37, .06), 0 14px 30px rgba(56, 47, 37, .09), 2.5px 2.5px 0 -1px #fbf7ec, 3.5px 3.5px 0 -1px rgba(56, 47, 37, .16), 6px 6px 0 -2.5px #f8f3e5, 7px 7px 0 -2.5px rgba(56, 47, 37, .13);--ease: cubic-bezier(.22, .61, .36, 1);--ease-out: cubic-bezier(.16, 1, .3, 1);--ease-spring: cubic-bezier(.34, 1.4, .64, 1);--dur-1: .15s;--dur-2: .25s;--dur-3: .4s;--dur-4: .6s;--bar-h: 60px;--top-h: 50px;--safe-b: env(safe-area-inset-bottom, 0px);--safe-t: env(safe-area-inset-top, 0px);--content-max: 1180px;--touch-min: 44px;--on-brand: #fff;--panel: var(--paper);--panel-2: var(--paper-2);--ink-soft: var(--ink-2);--brand-soft: var(--brand-tint);--accent: var(--jade);--green: var(--jade);--radius: var(--r-2);--radius-lg: var(--r-4);--shadow: var(--sh-card);--shadow-lg: var(--sh-3);--hotspot-active: rgba(217, 106, 44, .28);--hotspot-stroke: var(--brand);--hotspot-hint: rgba(217, 106, 44, .1);--hotspot-hint-stroke: rgba(217, 106, 44, .5);--recite-stroke: var(--jade)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:var(--font-sans);background:var(--paper-grain) repeat,radial-gradient(135% 90% at 50% -8%,var(--bg-warm) 0%,rgba(247,232,211,0) 58%),var(--bg);background-attachment:fixed;color:var(--ink);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-tap-highlight-color:transparent;overscroll-behavior:none;text-rendering:optimizeLegibility}button{font:inherit;cursor:pointer;border:none;background:none;color:inherit;padding:0;-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}:where(a,button,[role=button],[role=tab],[tabindex]):focus-visible{outline:2px solid var(--brand);outline-offset:2px}img{-webkit-user-drag:none}.no-select{user-select:none;-webkit-user-select:none}.ddSeal{display:inline-grid;place-items:center;width:2.4em;height:2.4em;border-radius:.5em;background:var(--seal-grad);color:#fff7ee;font-family:var(--font-serif);font-weight:700;line-height:1;letter-spacing:0;box-shadow:var(--sh-seal),inset 0 1px #ffffff38;position:relative;flex:none;user-select:none;-webkit-user-select:none}.ddSeal:before{content:"";position:absolute;top:.22em;right:.22em;bottom:.22em;left:.22em;border:1px solid rgba(255,247,238,.55);border-radius:.3em;pointer-events:none}.ddRule{display:flex;align-items:center;justify-content:center;gap:var(--sp-3)}.ddRule:before,.ddRule:after{content:"";height:1px;flex:1;max-width:96px;background:linear-gradient(to right,transparent,var(--line))}.ddRule:after{background:linear-gradient(to left,transparent,var(--line))}.ddRuleDot{width:5px;height:5px;border-radius:50%;background:var(--brand);flex:none}*{scrollbar-width:thin;scrollbar-color:var(--line) transparent}*::-webkit-scrollbar{width:7px;height:7px}*::-webkit-scrollbar-thumb{background:var(--line);border-radius:var(--r-pill)}*::-webkit-scrollbar-thumb:hover{background:var(--ink-3)}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}.print-root{display:none}@media print{@page{size:A4;margin:0}html,body{height:auto!important;overflow:visible!important;background:#fff!important}body>*:not(.print-root){display:none!important}.print-root{display:block}.print-page{width:100vw;height:100vh;overflow:hidden;display:flex;align-items:center;justify-content:center;break-after:page;page-break-after:always}.print-page:last-child{break-after:auto;page-break-after:auto}.print-page img{max-width:100%;max-height:100%}}