:root{--bg: #fff8fc;--panel: #ffffff;--text: #4d3d71;--muted: #7d6a9e;--pink: #ff7fb3;--pink-dark: #ef5f98;--yellow: #ffd768;--purple: #b794ff;--blue: #8cd8ff;--green: #8be0b4;--danger: #ef667f;--ok: #34b56f;--shadow: 0 12px 30px rgba(176, 130, 196, .18);--radius: 18px}*{box-sizing:border-box}body{margin:0;font-family:PingFang SC,Microsoft YaHei,sans-serif;background:radial-gradient(circle at top left,#ffe4f2 0,transparent 28%),radial-gradient(circle at top right,#e9deff 0,transparent 30%),linear-gradient(180deg,#fff8fc,#fffaf0);color:var(--text)}#app,.app-viewport{min-height:100dvh}button,input,select{font:inherit}.app{max-width:1380px;margin:0 auto;padding:18px 20px 24px}.hero{text-align:center;margin-bottom:14px}.hero h1{margin:0;font-size:40px;line-height:1.1}.hero p{margin:10px 0 0;color:var(--muted);font-size:16px}.layout{display:grid;grid-template-columns:minmax(0,1.28fr) 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26px;position:relative;height:178px;overflow:hidden;background:linear-gradient(180deg,#fff9fd,#fff4fb);border-radius:18px;border:2px dashed #f3cfe1}.reward-hint{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;color:#cb9fbe;font-size:18px;font-weight:800;text-align:center;padding:20px}.drop-card{position:absolute;left:50%;top:-140px;transform:translate(-50%);width:246px;height:112px;border-radius:20px;color:#fff;text-align:left;padding:12px;font-weight:800;box-shadow:0 18px 28px #5031773d;animation:dropBounce 1.25s ease forwards;display:flex;align-items:center;justify-content:center}.drop-card.preview{animation:none;top:50%;transform:translate(-50%,-50%)}.drop-card.preview-enter{animation:previewDropBounce 1.05s ease 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#492e7338}.gallery-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:16px}.gallery-card{border-radius:18px;padding:12px;color:#fff;min-height:220px;box-shadow:0 12px 20px #63438c2e}.gallery-card-figure{width:100%;padding:8px;border-radius:16px;margin-bottom:10px}.gallery-card img{width:100%;height:140px;object-fit:contain;display:block;filter:drop-shadow(0 5px 10px rgba(62,39,95,.16))}.footer-note{margin-top:18px;text-align:center;color:#8c79ac;font-size:14px}@media (min-width: 981px){.rewards-panel{display:flex;flex-direction:column;min-height:0;max-height:calc(100dvh - 56px);overflow:hidden}.rewards-panel .collection{flex:1;min-height:0;overflow:auto;align-content:start;padding-right:4px}}@media (min-width: 700px) and (max-width: 1180px){.app-viewport{min-height:100dvh}.app{max-width:1180px;width:auto;padding:10px 12px 14px;transform:none}.layout{grid-template-columns:minmax(0,1fr) 372px;gap:12px;min-height:0;max-height:none}.panel{padding:14px;height:100%}.hero h1{font-size:30px}.hero p{margin-top:6px;font-size:13px}.stats{grid-template-columns:repeat(2,minmax(0,1fr))}.stat{min-height:68px;padding:10px 12px}.stat strong{font-size:20px}.practice-panel{display:flex;flex-direction:column}.rewards-panel{display:block;overflow:visible;width:372px;min-width:372px;max-width:372px}.question{font-size:34px;min-height:76px;padding:14px 8px 4px}.answer-btn{font-size:20px;min-height:58px;padding:13px}.answers.choice-layout{max-width:920px;gap:10px}.feedback{min-height:24px;font-size:18px}.button-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}.primary-btn,.secondary-btn{padding:12px 14px;font-size:16px}.tips{margin-top:12px;padding:10px 12px;font-size:12px;line-height:1.5}.reward-stage{--reward-card-rest-top: 30px;--reward-card-bounce-mid-top: 34px;--reward-card-bounce-high-top: 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h1{font-size:32px}.question{font-size:32px;min-height:96px}.answer-btn{font-size:22px}.answers.choice-layout{grid-template-columns:1fr;max-width:560px}.collection{grid-template-columns:repeat(2,minmax(0,1fr))}.mini-card{min-height:144px}.stats{grid-template-columns:1fr 1fr}.celebration-title{font-size:40px}.celebration-subtitle{font-size:20px}.gallery-grid{grid-template-columns:1fr 1fr}.collection-header{align-items:flex-start;flex-direction:column}.remove-list{grid-template-columns:1fr;max-height:min(58vh,460px)}}