:root {
  --green:#52c91a; --lime:#8fe05a; --orange:#ffa83a; --pink:#f56fb3;
  --yellow:#ffc43d; --blue:#58b4ed; --purple:#aa69df; --ink:#304239;
  --cream:#fffdf2; --line:#e7efd7; --shadow:0 12px 28px rgba(84,91,48,.13);
  font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC",sans-serif;
  color:var(--ink); font-synthesis:none;
}
*{box-sizing:border-box} html,body{margin:0;min-height:100%;background:#faf9ee} button,input{font:inherit}
button{cursor:pointer}.app{min-height:100vh;background:radial-gradient(circle at 20% 0,#fff 0 18%,transparent 43%),#fffdf3}
.hidden{display:none!important}
.login-view{min-height:100vh;display:grid;place-items:center;padding:32px 20px;background:#baf5fb}
.login-card{width:min(420px,100%);min-height:633px;padding:40px;border-radius:20px;background:#fff;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.login-brand{text-align:center}.login-mark{height:95px;display:grid;place-items:end center;padding-bottom:12px;font-size:52px;line-height:1;transform:rotate(-10deg)}
.login-brand h1{margin:0;color:#52c41a;font-size:23px;line-height:1.35;font-weight:900;text-shadow:0 1px 0 rgba(44,138,9,.15)}
.login-brand p{margin:7px 0 33px;color:#999;font-size:12px}.login-field{display:block;margin-bottom:20px;color:#171717;font-size:16px;font-weight:700;line-height:24px}
.login-field input{display:block;width:100%;height:52px;margin-top:9px;padding:12px 15px;border:1.6px solid #e0e0e0;border-radius:10px;outline:0;background:transparent;font-weight:400;transition:.18s}
.login-field input:focus{border-color:#73d13d;box-shadow:0 0 0 3px rgba(115,209,61,.15)}.login-field input.invalid{border-color:#ff7875}.login-field small{display:block;min-height:16px;color:#e94b48;font-size:12px;font-weight:400}
.login-submit{width:100%;height:55px;border:0;border-radius:10px;color:#fff;background:linear-gradient(90deg,#72d82c,#4dce0d);box-shadow:0 5px 12px rgba(82,196,26,.18);font-size:18px;font-weight:900;letter-spacing:.38em;text-indent:.38em}
.login-links{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:20px;color:#aaa;font-size:14px}.login-links button{padding:0;border:0;background:none;color:#52c41a}
.app-header{position:sticky;top:0;z-index:20;padding:18px 24px 20px;background:rgba(255,255,255,.96);box-shadow:0 5px 14px rgba(109,156,73,.09);backdrop-filter:blur(12px)}
.topline{display:flex;align-items:center;gap:12px;min-width:0}.brand{flex:0 0 auto;color:#4bc627;font-size:25px;font-weight:900;letter-spacing:-1px;text-shadow:0 2px 0 #e6f8d8}.brand span{display:inline-block;margin-right:6px;transform:rotate(-12deg)}
.class-pill,.tool,.logout{border:1px solid #e9e9e9;border-radius:999px;background:#fafafa;color:#65706a;font-weight:700;white-space:nowrap}.class-pill{padding:10px 17px;border:2px solid #b8ec91;background:#fbfff7;color:#55bc28}.search{display:flex;align-items:center;flex:1;max-width:285px;min-width:160px;height:47px;padding:0 17px;border:2px solid #f0f0f0;border-radius:999px;background:#fbfbfb}.search input{width:100%;margin-left:8px;border:0;outline:0;background:transparent;color:#555}.search input::placeholder{color:#aaa}.tool{padding:11px 17px;font-size:15px}.tool.primary{border-color:#56b5ef;background:#44a9ed;color:#fff;box-shadow:0 5px 11px rgba(68,169,237,.22)}.tool b{font-weight:800}.tool.batch{border:0;background:#f666b0;color:#fff;box-shadow:0 6px 14px rgba(246,102,176,.26)}.tool.active{outline:3px solid rgba(82,201,26,.2);background:#eaffe1;color:#45b71b}
.main-nav{display:grid;grid-template-columns:repeat(6,minmax(120px,1fr)) auto;gap:13px;margin-top:16px}.nav-btn{height:47px;border:0;border-radius:999px;color:#fff;font-weight:900;font-size:16px;box-shadow:0 7px 13px rgba(82,83,35,.15);transition:.2s}.nav-btn:hover{transform:translateY(-2px);filter:saturate(1.12)}.orange{background:var(--orange)}.pink{background:var(--pink)}.yellow{background:var(--yellow)}.green{background:var(--lime)}.blue{background:var(--blue)}.purple{background:var(--purple)}.logout{padding:0 20px}
.garden{display:grid;grid-template-columns:repeat(auto-fit,minmax(205px,1fr));gap:34px 30px;padding:35px 43px 70px;align-items:start}.student-card{position:relative;width:100%;max-width:260px;justify-self:center;min-height:326px;padding:20px 20px 16px;border:2px solid #eff6df;border-radius:24px;background:rgba(255,254,242,.9);box-shadow:var(--shadow);text-align:center;transition:.2s;overflow:hidden}.student-card:hover{transform:translateY(-4px);border-color:#c8efa9;box-shadow:0 15px 30px rgba(82,132,43,.18)}.student-card.selected{border-color:#76dc42;box-shadow:0 0 0 4px rgba(118,220,66,.18),var(--shadow)}.plant-title{font-size:18px;color:#274038}.pot-wrap{position:relative;height:132px;display:grid;place-items:end center;padding-bottom:3px}.pot-shadow{position:absolute;left:50%;bottom:0;width:104px;height:18px;border-radius:50%;background:radial-gradient(ellipse,rgba(123,62,34,.24) 0,rgba(123,62,34,.1) 48%,transparent 72%);transform:translateX(-50%);filter:blur(1px)}.pot{position:relative;width:96px;height:90px;z-index:2;filter:drop-shadow(0 6px 4px rgba(122,57,30,.19));transition:transform .25s ease}.student-card:hover .pot{transform:translateY(-2px)}.pot-body{position:absolute;z-index:1;left:11px;top:25px;width:74px;height:62px;border-radius:0 0 17px 17px;background:linear-gradient(105deg,#b95635 0%,#dd7a50 22%,#f2ad7a 49%,#dc7b52 73%,#b65536 100%);clip-path:polygon(0 0,100% 0,85% 100%,15% 100%);box-shadow:inset 7px 0 10px rgba(107,43,23,.12),inset -6px 0 10px rgba(105,42,22,.14),inset 0 -7px 8px rgba(126,51,28,.11)}.pot-body:before{content:"";position:absolute;left:20px;top:6px;width:11px;height:43px;border-radius:50%;background:linear-gradient(180deg,rgba(255,242,221,.7),rgba(255,255,255,0));transform:rotate(5deg);filter:blur(.4px)}.pot-body:after{content:"✿";position:absolute;left:0;right:0;top:23px;color:rgba(255,240,217,.53);font-size:19px;line-height:1;text-align:center;text-shadow:0 1px rgba(143,64,36,.12)}.pot-rim{position:absolute;z-index:3;left:0;top:13px;width:96px;height:24px;border-radius:12px 12px 14px 14px;background:linear-gradient(180deg,#ffc08d 0%,#ed9260 36%,#ca6742 78%,#aa4d31 100%);box-shadow:inset 0 3px 2px rgba(255,244,225,.7),inset 0 -4px 4px rgba(104,39,19,.16),0 3px 4px rgba(99,42,22,.14)}.pot-rim:after{content:"";position:absolute;left:9px;right:9px;bottom:4px;height:2px;border-radius:50%;background:rgba(126,54,28,.2)}.pot-soil{position:absolute;z-index:4;left:8px;top:10px;width:80px;height:17px;border-radius:50%;background:radial-gradient(ellipse at 48% 38%,#73513b 0,#4b3023 52%,#302017 80%);box-shadow:inset 0 3px 4px rgba(0,0,0,.28),0 2px 0 rgba(255,210,170,.4)}.student-card.growing .pot-soil{box-shadow:inset 0 3px 4px rgba(0,0,0,.28),0 2px 0 rgba(255,210,170,.4),0 -3px 11px rgba(93,197,42,.13)}.water-can{position:absolute;top:8px;left:50%;font-size:39px;transform:translateX(-5px) rotate(18deg);animation:pour .8s ease-in-out infinite alternate}.water-drop{position:absolute;left:61%;top:65px;font-size:24px;animation:drop .8s ease-in infinite}.sprout{position:absolute;z-index:5;bottom:78px;left:50%;font-size:39px;line-height:1;transform:translateX(-50%);filter:drop-shadow(0 4px 3px rgba(58,132,18,.22));animation:sproutSway 2.8s ease-in-out infinite}.name-pill{display:inline-flex;align-items:center;gap:6px;min-width:132px;justify-content:center;padding:7px 16px;border:3px solid #a8eb82;border-radius:999px;background:#fff;color:#263c34;font-size:17px;font-weight:900;box-shadow:0 3px 5px rgba(70,130,40,.1)}.name-pill:before,.name-pill:after{content:"✨";font-size:10px}.growth-copy{margin:8px 0 7px;color:#738074;font-size:13px}.progress{height:10px;border:2px solid #ddf2c7;border-radius:99px;background:#effbdf;overflow:hidden}.progress i{display:block;height:100%;background:linear-gradient(90deg,#59c82b,#a5e475);border-radius:99px}.badge-box{height:39px;margin-top:8px;display:flex;align-items:center;justify-content:center;border:2px dashed #cdebae;border-radius:999px;color:#a2a99f;font-size:13px}.badge-box.has{font-size:20px;color:#555}.action-overlay{position:absolute;inset:0;display:grid;place-items:center;background:rgba(255,255,245,.76);opacity:0;pointer-events:none;transition:.18s}.mode-on .student-card:hover .action-overlay{opacity:1;pointer-events:auto}.action-overlay button{width:110px;height:44px;border:0;border-radius:999px;color:#fff;background:#4dca1d;font-weight:900;box-shadow:0 8px 16px rgba(77,202,29,.25)}
.garden.empty-garden{display:grid;place-items:center;min-height:calc(100vh - 170px)}.data-empty{width:min(520px,calc(100vw - 40px));padding:52px 35px;border:2px dashed #cfe9b6;border-radius:28px;background:rgba(255,255,255,.7);text-align:center;box-shadow:var(--shadow)}.data-empty-icon{font-size:68px}.data-empty h2{margin:13px 0 8px;color:#425743}.data-empty p{margin:0 0 23px;color:#889188;line-height:1.8}.data-empty .btn{padding:14px 28px;font-size:16px}
.empty-actions,.modal-toolbar{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap}.modal-toolbar{justify-content:flex-end;margin-bottom:16px}.modal-toolbar .btn{padding:9px 14px}
.float-tools{position:fixed;z-index:18;right:0;top:46%;display:flex;flex-direction:column;gap:6px}.float-tools button{width:45px;height:45px;border:0;border-radius:22px 0 0 22px;background:white;color:#f27ba6;font-size:20px;box-shadow:0 3px 12px rgba(0,0,0,.09)}.float-tools button:last-child{background:#ee7ba0;color:white}.assistant{position:fixed;z-index:18;right:12px;bottom:24px;width:45px;height:45px;border:4px solid #fff;border-radius:50%;background:#111;font-size:25px;box-shadow:0 3px 9px rgba(0,0,0,.25)}
.modal-layer{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:18px;opacity:0;visibility:hidden;transition:.18s}.modal-layer.open{opacity:1;visibility:visible}.modal-backdrop{position:absolute;inset:0;background:rgba(34,39,31,.52);backdrop-filter:blur(2px)}.modal{position:relative;width:min(620px,95vw);max-height:82vh;overflow:hidden;border-radius:21px;background:#fff;box-shadow:0 24px 65px rgba(0,0,0,.35);transform:translateY(12px) scale(.98);transition:.2s}.modal-layer.open .modal{transform:none}.modal.wide{width:min(790px,95vw)}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:19px 25px;border-bottom:1px solid #eee}.modal-header h2{margin:0;font-size:22px;color:#33423a}.modal-header h2 strong{color:#4bc91c}.close{width:38px;height:38px;border:0;border-radius:50%;background:#f4f4f4;color:#aaa;font-size:25px}.modal-body{max-height:calc(82vh - 77px);overflow:auto;padding:22px 25px 25px}.note{margin:0 0 17px;color:#7c827d}.info-strip{padding:14px 17px;border:1px dashed #f2d991;border-radius:12px;background:#fffef5;color:#9b813a;font-size:14px}.section-title{margin:16px 0 10px;padding-left:10px;border-left:4px solid #59d11e;font-weight:900}.row{display:flex;align-items:center;gap:12px}.grow{flex:1}.input{height:53px;width:100%;padding:0 16px;border:2px solid #e4e4e4;border-radius:12px;outline:0}.input:focus{border-color:#7edb46}.btn{padding:12px 19px;border:0;border-radius:999px;color:#fff;background:#50ca1e;font-weight:900;white-space:nowrap}.btn.orange{background:linear-gradient(90deg,#ffad38,#ff8417)}.btn.purple{background:linear-gradient(90deg,#aa68e8,#7a28dc)}.btn.blue{background:linear-gradient(90deg,#61baf0,#1594ef)}.btn.danger{background:linear-gradient(90deg,#ffa03c,#ff7443)}.btn.muted{background:#ccc}.btn.full{width:100%;margin-top:20px}.divider{height:1px;margin:17px 0;border-top:1px dashed #e4e4e4}
.class-item,.theme-item,.log-item,.student-row,.rank-row{display:flex;align-items:center;gap:12px;padding:13px 14px;margin-bottom:10px;border-radius:13px;background:#fafafa}.class-item{border:2px solid #61d02c;background:#f8fff3}.class-name,.student-name{font-weight:900}.sub{display:block;margin-top:4px;color:#999;font-size:13px}.mini-btn{width:39px;height:39px;border:1px solid #e4e4e4;border-radius:9px;background:white}.theme-num,.student-num{display:grid;place-items:center;width:31px;height:31px;border-radius:10px;background:#56cc24;color:#fff;font-weight:900}.student-row input{width:21px;height:21px}.student-meta{margin-left:auto;color:#707a72}.student-list,.rank-list{max-height:430px;overflow:auto;padding-right:4px}.rank-tabs,.theme-tabs{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:17px}.tab{height:52px;border:2px solid #e9e9e9;border-radius:18px;background:#fff;font-weight:900;color:#656565}.tab.active{border:0;background:#50c912;color:#fff}.rank-pos{width:38px;text-align:center;font-size:19px}.rank-row{padding:17px}.rank-row .student-name{flex:1}.view{padding:7px 14px;border:2px solid #91dfff;border-radius:999px;background:#eefdff;color:#28a9e8}
.class-item.current{box-shadow:0 0 0 3px rgba(82,201,26,.12)}.group-color{width:20px;height:20px;border-radius:7px;flex:0 0 auto}.color-input{width:54px;height:48px;padding:4px;border:1px solid #ddd;border-radius:10px;background:#fff}.textarea{display:block;width:100%;padding:15px;border:2px solid #e5e5e5;border-radius:14px;outline:0;resize:vertical;line-height:1.8}.textarea:focus{border-color:#7edb46}.icon-delete{border:0;background:transparent;color:#bbb;font-size:18px}
.goods-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.good{padding:22px 10px 18px;border-radius:14px;background:#fafafa;text-align:center}.good-icon{font-size:44px}.good h3{margin:12px 0 5px}.price{color:#ffad1f;font-weight:900}.stock{margin:6px 0;color:#aaa;font-size:13px}.good .btn{padding:8px 14px}.modal-footer{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:21px -25px -25px;padding:20px 25px;border-top:1px solid #eee}.settings label{display:block;margin:10px 0 7px;font-weight:800}.speed{width:86px}.two-buttons{display:grid;grid-template-columns:1fr 1fr;gap:12px}.empty{text-align:center;padding:34px;color:#aaa}.toast{position:fixed;z-index:200;left:50%;bottom:28px;padding:12px 22px;border-radius:999px;background:#243d2d;color:#fff;box-shadow:0 8px 22px rgba(0,0,0,.24);opacity:0;transform:translate(-50%,15px);transition:.2s;pointer-events:none}.toast.show{opacity:1;transform:translate(-50%,0)}
.good .btn:disabled{background:#ccc;cursor:not-allowed}.product-row{display:flex;align-items:center;gap:12px;padding:12px 14px;margin-bottom:9px;border-radius:13px;background:#fafafa}.product-icon{font-size:30px}.product-form .row{margin-top:10px}.input[type="number"]{min-width:0}.batch-head{display:flex;justify-content:space-between;margin-bottom:14px;color:#777}.batch-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;max-height:380px;overflow:auto;margin-bottom:18px}.select-row{display:flex;align-items:center;gap:10px;padding:11px 13px;border-radius:11px;background:#fafafa}.select-row input{width:19px;height:19px}.select-row small{margin-left:auto;color:#aaa}.profile-card{text-align:center;padding:20px}.profile-pot{font-size:76px}.profile-card h3{margin:8px 0}.profile-card p{color:#888}.profile-stat{display:flex;justify-content:center;gap:24px;margin-top:20px;padding:16px;border-radius:14px;background:#f7fbf2}.profile-stat b{color:#50c91e}
.danger-panel{text-align:center;padding:18px 10px}.danger-icon{font-size:58px}.danger-panel h3{font-size:21px}.danger-panel p{max-width:440px;margin:0 auto 24px;color:#888;line-height:1.8}
.activation-input{text-transform:uppercase;letter-spacing:.08em;font-family:Consolas,"Microsoft YaHei",monospace}.activation-tip{margin:8px 0 0;padding:11px 13px;border-radius:10px;background:#f7fbf2;color:#72806f;font-size:13px;line-height:1.6}
.adopt-button{width:100%;height:49px;margin-top:9px;border:2px solid #8ddf61;border-radius:999px;background:linear-gradient(180deg,#f7fff1,#eaffdc);color:#42ad1c;font-weight:900;box-shadow:0 5px 12px rgba(81,190,36,.12);transition:.18s}.adopt-button:hover{transform:translateY(-2px);background:#55ca24;color:#fff}.plant-choice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.plant-choice{display:grid;place-items:center;gap:5px;padding:20px 10px;border:2px solid #e8f2dc;border-radius:18px;background:#fffef7;color:#405044;transition:.18s}.plant-choice:hover{transform:translateY(-3px);border-color:#83dc54;box-shadow:0 9px 18px rgba(82,170,40,.14)}.plant-choice span{font-size:42px}.plant-choice b{font-size:16px}.plant-choice small{color:#99a196}.adoption-note{text-align:center}.student-card:not(.growing) .pot-soil{opacity:.85}
.student-card.mature{border-color:#f6d86e;background:linear-gradient(180deg,#fffdf1,#fffbe5);box-shadow:0 15px 34px rgba(214,169,40,.18)}.readopt-button{height:42px;margin-top:9px;border-color:#f2c84b;background:linear-gradient(180deg,#fff9d9,#fff0a8);color:#9a6b05;box-shadow:0 5px 14px rgba(214,169,40,.16)}.readopt-button:hover{background:#f4bf31;color:#fff}
@keyframes pour{to{transform:translateX(-5px) rotate(28deg)}}@keyframes drop{to{transform:translateY(25px);opacity:.1}}@keyframes sproutSway{0%,100%{transform:translateX(-50%) rotate(-2deg)}50%{transform:translateX(-50%) rotate(3deg)}}
@media(max-width:1150px){.topline{flex-wrap:wrap}.main-nav{grid-template-columns:repeat(3,1fr)}.logout{height:47px}.garden{grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}.brand{font-size:21px}}
@media(max-width:680px){.app-header{padding:14px}.search{order:3;max-width:none;flex-basis:100%}.tool{padding:9px 12px}.main-nav{grid-template-columns:1fr 1fr}.garden{padding:24px 16px;gap:18px;grid-template-columns:repeat(2,minmax(145px,1fr))}.student-card{min-height:305px;padding:16px 9px}.goods-grid{grid-template-columns:1fr 1fr}.modal-body{padding:18px}.modal-footer{margin-left:-18px;margin-right:-18px;padding:16px}.brand{font-size:19px}.class-pill{padding:8px 12px}.batch-grid{grid-template-columns:1fr}.student-meta{display:none}.two-buttons{grid-template-columns:1fr}}
@media(max-width:520px){.login-card{min-height:auto;padding:32px 26px 35px}.login-mark{height:86px}}
@media(max-width:520px){.plant-choice-grid{grid-template-columns:repeat(2,1fr)}}

/* Stable clay-pot rendering: avoids GPU artifacts from filter + clipping combinations. */
.pot{filter:none}
.pot-shadow{filter:none}
.pot-body{left:13px;width:70px;clip-path:none;border-radius:5px 5px 20px 20px;transform:none;box-shadow:inset 7px 0 10px rgba(107,43,23,.12),inset -6px 0 10px rgba(105,42,22,.14),inset 0 -7px 8px rgba(126,51,28,.11),0 7px 6px rgba(122,57,30,.17)}
.pot-body:before{filter:none}

/* Growth interaction layers */
.action-overlay{z-index:12;background:rgba(255,255,248,.88);backdrop-filter:none}
.action-overlay button{position:relative;z-index:13;width:126px;height:48px;font-size:17px;letter-spacing:.08em;border:3px solid rgba(255,255,255,.75);box-shadow:0 9px 20px rgba(62,172,22,.3)}
.growth-fx{position:absolute;inset:0;z-index:30;pointer-events:none;overflow:hidden;border-radius:22px;background:rgba(250,255,245,.42)}
.growth-fx .fx-label{position:absolute;left:50%;bottom:72px;min-width:112px;padding:9px 16px;border-radius:999px;background:#48c71d;color:#fff;font-weight:900;letter-spacing:.08em;transform:translateX(-50%);box-shadow:0 7px 18px rgba(63,167,24,.27);animation:fxLabel .9s ease both}
.fx-can{position:absolute;left:58%;top:45px;font-size:52px;transform-origin:25% 75%;animation:canPour .9s ease-in-out both}
.fx-drop{position:absolute;top:99px;font-size:21px;opacity:0;animation:waterFall .58s ease-in infinite}.drop-one{left:48%;animation-delay:.16s}.drop-two{left:54%;animation-delay:.28s}.drop-three{left:59%;animation-delay:.4s}
.is-watering .pot{animation:potDrink .9s ease-in-out both}.is-watering .plant-stage{animation:sproutDrink .9s ease-in-out both}.is-watering .action-overlay,.is-withering .action-overlay{opacity:0!important;pointer-events:none!important}
.withering-fx{background:rgba(255,250,239,.5)}.fx-leaf{position:absolute;top:48px;font-size:31px;animation:leafFall .9s ease-in both}.leaf-one{left:37%}.leaf-two{left:59%;animation-delay:.12s}.withering-fx .fx-label{background:#e29a3a}
@keyframes canPour{0%{transform:translate(18px,-12px) rotate(-18deg);opacity:0}20%{opacity:1}45%,78%{transform:translate(0,0) rotate(18deg)}100%{transform:translate(-8px,2px) rotate(8deg);opacity:0}}
@keyframes waterFall{0%{transform:translateY(-5px) scale(.7);opacity:0}25%{opacity:1}100%{transform:translateY(62px) scale(1);opacity:0}}
@keyframes potDrink{0%,100%{transform:scale(1)}45%{transform:scale(.96)}70%{transform:scale(1.035)}}
@keyframes sproutDrink{0%{transform:translateX(-50%) scale(.9)}55%{transform:translateX(-50%) scale(1.22) rotate(4deg)}100%{transform:translateX(-50%) scale(1)}}
@keyframes fxLabel{0%{transform:translate(-50%,12px) scale(.85);opacity:0}30%,75%{transform:translate(-50%,0) scale(1);opacity:1}100%{transform:translate(-50%,-5px) scale(.95);opacity:0}}
@keyframes leafFall{0%{transform:translateY(-10px) rotate(0);opacity:0}20%{opacity:1}100%{transform:translateY(145px) rotate(160deg);opacity:0}}
@media(prefers-reduced-motion:reduce){.fx-can,.fx-drop,.growth-fx .fx-label,.is-watering .pot,.is-watering .plant-stage,.fx-leaf{animation-duration:.01ms!important}}

/* Persistent plant growth stages */
.plant-stage{position:absolute;z-index:6;left:50%;bottom:77px;display:grid;place-items:center;transform:translateX(-50%);transform-origin:50% 100%;line-height:1;text-shadow:0 4px 7px rgba(53,121,24,.16)}
.leaf-stage{color:#58c92c;transition:font-size .35s ease,bottom .35s ease}
.bloom-stage{width:82px;height:82px;bottom:66px}.bloom-icon{position:relative;z-index:3;font-size:62px;animation:bloomBreathe 2.8s ease-in-out infinite}.bloom-ring{position:absolute;inset:8px;border-radius:50%;background:radial-gradient(circle,rgba(255,219,70,.3),rgba(255,244,174,.08) 55%,transparent 72%)}.bloom-spark{position:absolute;z-index:4;font-size:15px;animation:sparkFloat 1.8s ease-in-out infinite}.spark-a{left:-3px;top:17px}.spark-b{right:-4px;top:2px;animation-delay:.45s}
.just-grew .plant-stage{animation:stageGrow .75s cubic-bezier(.2,1.5,.45,1) both}.just-grew .pot-soil{animation:soilPulse .75s ease both}.just-bloomed .bloom-stage{animation:bloomBurst 1s cubic-bezier(.16,1.45,.35,1) both}.just-bloomed .bloom-ring{animation:ringBurst 1.1s ease-out both}.student-card.just-bloomed{border-color:#ffd85e;box-shadow:0 16px 36px rgba(255,202,45,.3)}
@keyframes stageGrow{0%{transform:translateX(-50%) scale(.58) translateY(18px);opacity:.35}55%{transform:translateX(-50%) scale(1.2) translateY(-5px);opacity:1}78%{transform:translateX(-50%) scale(.94)}100%{transform:translateX(-50%) scale(1)}}
@keyframes soilPulse{0%,100%{transform:scale(1)}50%{transform:scale(1.1);box-shadow:0 0 18px rgba(91,207,39,.38)}}
@keyframes bloomBurst{0%{transform:translateX(-50%) scale(.25) rotate(-20deg);opacity:0}58%{transform:translateX(-50%) scale(1.28) rotate(7deg);opacity:1}78%{transform:translateX(-50%) scale(.9) rotate(-3deg)}100%{transform:translateX(-50%) scale(1) rotate(0)}}
@keyframes ringBurst{0%{transform:scale(.2);opacity:0}35%{opacity:1}100%{transform:scale(1.65);opacity:0}}
@keyframes bloomBreathe{0%,100%{transform:rotate(-2deg) scale(1)}50%{transform:rotate(2deg) scale(1.055)}}
@keyframes sparkFloat{0%,100%{transform:translateY(3px) scale(.8);opacity:.45}50%{transform:translateY(-7px) scale(1.12);opacity:1}}

/* Playful garden experience */
.main-nav{grid-template-columns:repeat(7,minmax(105px,1fr)) auto}.collection-nav{background:linear-gradient(90deg,#ff9fbc,#ffcf5e)}.encourage-tool.active{color:#8a5c00;background:#fff0a8;box-shadow:0 0 0 3px rgba(255,200,51,.25)}
.garden-summary{margin:20px 42px 0;padding:15px 22px;display:flex;align-items:center;justify-content:space-between;gap:18px;border:2px solid #e4f2c8;border-radius:22px;background:linear-gradient(110deg,#fffced,#f5ffe9 55%,#eafff5);box-shadow:0 10px 26px rgba(91,132,54,.1)}.garden-summary>div:first-child{display:grid;grid-template-columns:auto 1fr;column-gap:10px}.garden-summary b{color:#35602c;font-size:17px}.garden-summary small{grid-column:2;color:#7c9277}.summary-sun{grid-row:1/3;font-size:34px;animation:summarySun 4s ease-in-out infinite}.summary-stats{display:flex;gap:10px;flex-wrap:wrap}.summary-stats span{padding:8px 12px;border-radius:999px;background:#fff;color:#667568;box-shadow:0 3px 9px rgba(86,112,67,.08);white-space:nowrap}.summary-stats b{color:#45b523}
.student-card{min-height:355px}.student-card.needs-encouragement{border-color:#ffd56a;background:linear-gradient(180deg,#fffdf2,#fff9dd)}.student-card.needs-encouragement:before{content:"💛 已收到鼓励";position:absolute;z-index:8;top:54px;right:10px;padding:4px 8px;border-radius:99px;background:#fff0a7;color:#9a6d00;font-size:11px;font-weight:900}.student-avatar{display:grid;place-items:center;width:28px;height:28px;margin-left:-10px;border-radius:50%;background:#efffe6;font-size:19px}.kid-title{display:inline-block;margin-right:5px;padding:2px 7px;border-radius:99px;background:#fff3b5;color:#8e6a08;font-size:10px;font-weight:900}.badge-box{gap:7px}.badge-box small{padding:2px 7px;border-radius:99px;background:#fff6c9;color:#8b6f16;font-size:10px}.badge-box.has{font-size:15px}.avatar-button{width:36px;height:36px;border:0;border-radius:50%;background:#f1ffe8;font-size:21px;cursor:pointer;transition:.18s}.avatar-button:hover{transform:rotate(-8deg) scale(1.12);background:#dffff0}
.action-overlay{z-index:12;inset:58px 12px auto auto;display:block;background:transparent;opacity:0;pointer-events:none}.mode-on .student-card:not(.mature) .action-overlay{opacity:1;pointer-events:auto}.mode-on .student-card:not(.mature){cursor:pointer;box-shadow:0 0 0 4px rgba(83,203,37,.12),var(--shadow)}.action-overlay button{width:auto;min-width:92px;height:39px;padding:0 13px;border:3px solid #fff;font-size:14px}.mode-on #garden:before{content:"点击学生花盆完成本次操作";position:fixed;z-index:20;left:50%;bottom:18px;transform:translateX(-50%);padding:10px 18px;border-radius:99px;background:#2e6334;color:#fff;font-weight:900;box-shadow:0 8px 22px rgba(37,83,42,.25)}
.plant-choice{min-height:156px;border-color:color-mix(in srgb,var(--choice-accent),white 68%)}.plant-choice:hover{border-color:var(--choice-accent);box-shadow:0 10px 20px color-mix(in srgb,var(--choice-accent),transparent 75%)}.plant-choice small{max-width:140px;line-height:1.4;text-align:center}.leaf-stage{filter:drop-shadow(0 4px 4px color-mix(in srgb,var(--plant-accent),transparent 70%))}.bloom-ring{background:radial-gradient(circle,color-mix(in srgb,var(--plant-accent),transparent 60%),rgba(255,244,174,.08) 55%,transparent 72%)}
.collection-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.collection-card{display:grid;place-items:center;gap:5px;min-height:155px;padding:15px;border:2px dashed #dde2d8;border-radius:20px;background:#f7f7f3;color:#a0a79d}.collection-card.unlocked{border-style:solid;border-color:#d6efbb;background:linear-gradient(150deg,#fffef1,#f3ffe7);color:#405541;box-shadow:0 8px 18px rgba(80,132,42,.1)}.collection-icon{font-size:52px;filter:grayscale(1);opacity:.45}.unlocked .collection-icon{filter:none;opacity:1;animation:collectionFloat 2.8s ease-in-out infinite}.collection-card span{font-size:13px}.collection-card small{color:#b08326}.harvest-timeline{display:flex;gap:9px;flex-wrap:wrap}.harvest-chip{padding:8px 11px;border-radius:12px;background:#fff7d4;color:#6e5c27;font-size:13px}
.rank-tabs{grid-template-columns:repeat(3,1fr)}.rank-avatar{display:grid;place-items:center;width:42px;height:42px;border-radius:50%;background:#efffe7;font-size:25px}.progress-rank{border-left:4px solid #ffd250}.rank-pos{min-width:38px}.profile-avatar{display:grid;place-items:center;width:76px;height:76px;margin:0 auto -18px;border:5px solid #fff;border-radius:50%;background:#eaffdf;font-size:43px;box-shadow:0 7px 16px rgba(69,132,37,.15)}.profile-title{display:inline-block;padding:4px 12px;border-radius:99px;background:#fff0a9;color:#8c6712;font-weight:900}.profile-stat{flex-wrap:wrap}.profile-section{margin-top:14px;padding:12px;border-radius:15px;background:#fff}.profile-section>b{display:block;margin-bottom:8px;color:#52704f}.mini-harvest{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;margin:3px;border-radius:12px;background:#f1ffe6;font-size:23px}.sticker-chip{display:inline-block;margin:3px;padding:5px 8px;border-radius:99px;background:#fff4c3;color:#745c16;font-size:12px}
.select-row.disabled{opacity:.48;background:#f2f2f2}.btn.encourage{background:linear-gradient(90deg,#ffcf4a,#ff9f3d)}.sound-setting{display:flex!important;align-items:center;gap:9px;margin:16px 0!important;padding:12px 14px;border-radius:14px;background:#fff9dc}.sound-setting input{width:20px;height:20px}.gift-reveal{text-align:center;padding:18px}.gift-burst{font-size:68px;animation:giftPop .8s cubic-bezier(.2,1.5,.4,1)}.gift-reveal h3{font-size:23px;color:#45683d}.gift-reveal p{color:#7d8979}
.celebration{position:fixed;z-index:300;inset:0;display:grid;place-items:center;padding:18px;background:rgba(34,54,29,.58);backdrop-filter:blur(5px);opacity:0;visibility:hidden;transition:.25s}.celebration.show{opacity:1;visibility:visible}.celebration-card{position:relative;width:min(480px,92vw);padding:34px 28px 28px;overflow:hidden;border:4px solid #fff1a8;border-radius:32px;background:radial-gradient(circle at 50% 20%,#fffef1,#f4ffe7 60%,#e5ffd8);box-shadow:0 30px 80px rgba(0,0,0,.35);text-align:center;animation:celebrationEnter .75s cubic-bezier(.16,1.4,.38,1)}.celebration-flower{font-size:100px;filter:drop-shadow(0 12px 10px rgba(91,105,35,.18));animation:flowerVictory 1.1s ease-in-out infinite alternate}.celebration-card h2{margin:8px 0;color:#36712b;font-size:27px}.celebration-card p{color:#71816b}.celebration-card button{padding:12px 24px;border:0;border-radius:99px;background:linear-gradient(90deg,#68d631,#35b919);color:#fff;font-weight:900;font-size:16px;box-shadow:0 8px 18px rgba(59,177,27,.27)}.petal-cloud{position:absolute;left:0;right:0;top:15px;font-size:28px;letter-spacing:12px;animation:petalDance 1.5s ease-in-out infinite}.rare-find{margin:12px 0;padding:9px;border:2px dashed #e9b92d;border-radius:13px;background:#fff7ca;color:#866300;font-weight:900}
@keyframes summarySun{50%{transform:rotate(12deg) scale(1.08)}}@keyframes collectionFloat{50%{transform:translateY(-5px) rotate(3deg)}}@keyframes giftPop{0%{transform:scale(.2) rotate(-18deg);opacity:0}65%{transform:scale(1.2) rotate(4deg)}100%{transform:scale(1);opacity:1}}@keyframes celebrationEnter{0%{transform:scale(.35) translateY(60px);opacity:0}70%{transform:scale(1.05)}100%{transform:none;opacity:1}}@keyframes flowerVictory{to{transform:translateY(-7px) rotate(4deg) scale(1.06)}}@keyframes petalDance{50%{transform:translateY(15px);letter-spacing:20px}}
@media(max-width:1100px){.main-nav{grid-template-columns:repeat(4,1fr)}.garden-summary{align-items:flex-start;flex-direction:column}.summary-stats{width:100%}}
@media(max-width:680px){.garden-summary{margin:14px 14px 0;padding:13px}.summary-stats span{font-size:12px}.collection-grid{grid-template-columns:repeat(2,1fr)}.rank-tabs{grid-template-columns:1fr}.student-card{min-height:345px}.action-overlay{opacity:0}.mode-on .student-card:not(.mature) .action-overlay{opacity:1}.main-nav{grid-template-columns:1fr 1fr}.kid-title{display:none}}
@media(prefers-reduced-motion:reduce){.summary-sun,.collection-icon,.gift-burst,.celebration-card,.celebration-flower,.petal-cloud{animation:none!important}}

/* Mobile-first control grouping */
.quick-tools{display:flex;align-items:center;gap:12px;min-width:0}

@media (hover:none){
  .student-card:hover,.student-card:hover .pot,.nav-btn:hover,.adopt-button:hover,.plant-choice:hover{transform:none}
}

@media(max-width:760px){
  html{scroll-padding-top:180px}
  body{overflow-x:hidden;-webkit-text-size-adjust:100%}
  button,.btn,.mini-btn,.close,.tab,.view{min-height:44px;touch-action:manipulation}

  .login-view{min-height:100dvh;padding:max(18px,env(safe-area-inset-top)) 14px max(18px,env(safe-area-inset-bottom));background:radial-gradient(circle at 15% 10%,#efffff 0 17%,transparent 42%),linear-gradient(160deg,#baf5fb,#9ee8ef)}
  .login-card{width:100%;max-width:430px;min-height:0;padding:28px 22px 30px;border-radius:26px;box-shadow:0 18px 45px rgba(36,112,119,.22)}
  .login-mark{height:74px;padding-bottom:8px;font-size:44px}
  .login-brand h1{font-size:22px}.login-brand p{margin-bottom:25px}
  .login-field{margin-bottom:15px;font-size:15px}.login-field input{height:52px;margin-top:7px;font-size:16px}
  .login-submit{height:54px;font-size:17px}.login-links{gap:7px;margin-top:18px;font-size:13px;flex-wrap:wrap}

  .app-header{padding:10px 12px 9px;border-bottom:1px solid rgba(112,173,72,.12);backdrop-filter:blur(18px)}
  .topline{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:9px 8px}
  .brand{min-width:0;overflow:hidden;text-overflow:ellipsis;font-size:20px;line-height:42px;white-space:nowrap;letter-spacing:-.5px}
  .brand span{margin-right:2px}.class-pill{max-width:42vw;height:42px;padding:7px 11px;overflow:hidden;text-overflow:ellipsis;font-size:13px}
  .search{grid-column:1/-1;grid-row:2;width:100%;max-width:none;min-width:0;height:44px;padding:0 14px;order:initial}
  .search input{min-width:0;font-size:16px}
  .quick-tools{grid-column:1/-1;grid-row:3;width:100%;max-width:100%;gap:8px;padding:1px 2px 6px;overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:none;scroll-snap-type:x proximity}
  .quick-tools::-webkit-scrollbar,.main-nav::-webkit-scrollbar{display:none}
  .quick-tools .tool{flex:0 0 auto;min-height:42px;padding:9px 13px;font-size:13px;scroll-snap-align:start}
  .quick-tools .tool.primary{max-width:none}

  .main-nav{display:flex;width:100%;max-width:100%;gap:8px;margin-top:3px;padding:3px 2px 7px;overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:none;scroll-snap-type:x mandatory}
  .nav-btn,.logout{flex:0 0 auto;width:auto;min-width:118px;height:44px;padding:0 15px;font-size:13px;scroll-snap-align:start;box-shadow:0 5px 10px rgba(82,83,35,.12)}
  .logout{min-width:104px}

  .garden-summary{margin:12px 12px 0;padding:12px 13px;gap:10px;border-radius:18px}
  .garden-summary>div:first-child{column-gap:7px}.garden-summary b{font-size:15px}.garden-summary small{font-size:12px;line-height:1.45}.summary-sun{font-size:28px}
  .summary-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
  .summary-stats span{min-width:0;padding:7px 5px;overflow:hidden;text-overflow:ellipsis;text-align:center;font-size:11px}

  .garden{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 10px;padding:15px 12px calc(72px + env(safe-area-inset-bottom))}
  .student-card{max-width:none;min-height:322px;padding:14px 8px 12px;border-radius:20px;box-shadow:0 8px 20px rgba(84,91,48,.11)}
  .student-card:hover{box-shadow:0 8px 20px rgba(84,91,48,.11)}
  .plant-title{font-size:15px}.pot-wrap{height:119px;transform:scale(.93);transform-origin:50% 100%}
  .name-pill{width:100%;min-width:0;max-width:148px;min-height:41px;padding:6px 7px;gap:3px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px;border-width:2px}
  .student-avatar{flex:0 0 auto;width:25px;height:25px;margin-left:-3px;font-size:17px}
  .growth-copy{margin:7px 0 6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:11px}
  .progress{height:9px}.badge-box{height:37px;margin-top:7px;font-size:11px}.badge-box.has{font-size:13px}.badge-box small{padding:2px 4px;font-size:9px}
  .adopt-button,.readopt-button{height:46px;margin-top:8px;font-size:13px}
  .student-card.needs-encouragement:before{top:47px;right:6px;font-size:9px}
  .action-overlay{inset:48px 7px auto auto}.action-overlay button{min-width:88px;height:44px;padding:0 10px;font-size:13px}
  .mode-on #garden:before{bottom:calc(12px + env(safe-area-inset-bottom));width:max-content;max-width:calc(100vw - 24px);padding:10px 14px;font-size:13px;text-align:center}
  .growth-fx{border-radius:18px}.fx-can{top:37px;font-size:45px}.fx-drop{top:87px}.growth-fx .fx-label{bottom:64px;min-width:96px;padding:8px 11px;font-size:12px}

  .garden.empty-garden{grid-template-columns:1fr;min-height:calc(100dvh - 232px);padding:18px 12px 50px}
  .data-empty{width:100%;padding:35px 18px;border-radius:22px}.data-empty-icon{font-size:54px}.data-empty h2{font-size:21px}.data-empty p{font-size:14px;line-height:1.65}.empty-actions{display:grid;grid-template-columns:1fr;width:100%}.data-empty .btn{width:100%;padding:12px 16px}

  .modal-layer{align-items:end;padding:0}
  .modal,.modal.wide{width:100%;max-width:none;max-height:92dvh;border-radius:26px 26px 0 0;transform:translateY(28px)}
  .modal-header{min-height:64px;padding:14px 16px}.modal-header h2{max-width:calc(100% - 52px);font-size:18px;line-height:1.3}.close{flex:0 0 auto;width:44px;height:44px;font-size:24px}
  .modal-body{max-height:calc(92dvh - 64px);padding:16px 15px calc(18px + env(safe-area-inset-bottom))}
  .modal-toolbar{justify-content:stretch;display:grid;grid-template-columns:1fr 1fr;gap:8px}.modal-toolbar .btn{width:100%;padding:9px 8px;font-size:12px}
  .input,.textarea{font-size:16px}.row{flex-wrap:wrap}.row>.grow{flex:1 1 100%}.row>.btn{flex:1 1 auto}
  .modal-footer{grid-template-columns:1fr;gap:9px;margin:18px -15px calc(-18px - env(safe-area-inset-bottom));padding:15px 15px calc(15px + env(safe-area-inset-bottom))}
  .goods-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.good{padding:17px 7px 14px}.good-icon{font-size:38px}.good h3{font-size:14px}.good .btn{width:100%;padding:8px 7px;font-size:12px}
  .plant-choice-grid,.collection-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.plant-choice{min-height:138px;padding:14px 7px}.plant-choice span{font-size:38px}.plant-choice b{font-size:14px}.plant-choice small{font-size:11px}
  .collection-card{min-height:137px;padding:11px 7px}.collection-icon{font-size:44px}
  .rank-tabs{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.tab{height:46px;padding:0 6px;font-size:12px}.rank-row{gap:8px;padding:12px 9px}.rank-avatar{width:35px;height:35px;font-size:21px}.rank-pos{min-width:25px;width:25px;font-size:15px}.view{padding:6px 9px;font-size:12px}
  .class-item,.theme-item,.log-item,.student-row,.product-row{gap:8px;padding:11px 9px}.student-list,.rank-list{max-height:none}.mini-btn{flex:0 0 44px;width:44px;height:44px}.student-name,.class-name{min-width:0;overflow:hidden;text-overflow:ellipsis}.sub{font-size:11px}
  .two-buttons{grid-template-columns:1fr}.batch-grid{grid-template-columns:1fr}.select-row{min-height:48px}
  .profile-card{padding:12px 4px}.profile-stat{gap:10px;padding:12px}.celebration-card{padding:28px 18px 22px;border-radius:27px}.celebration-flower{font-size:78px}.celebration-card h2{font-size:23px}
  .toast{bottom:calc(14px + env(safe-area-inset-bottom));width:max-content;max-width:calc(100vw - 28px);padding:11px 16px;text-align:center;font-size:13px}
}

@media(max-width:360px){
  .brand{font-size:18px}.class-pill{max-width:40vw;padding-inline:9px}
  .garden{grid-template-columns:1fr;padding-inline:20px}.student-card{max-width:280px;min-height:335px;padding-inline:17px}
  .name-pill{max-width:180px}.pot-wrap{transform:none}
  .summary-stats{grid-template-columns:1fr}.summary-stats span{font-size:12px}
}