/* 有伴学习空间·小远远版：蓝紫青视觉（融合方向 B） */
:root{
  --bg:#F3F8FF; --bg2:#EAF1FD; --surface:#FFFFFF; --surface-2:#F2F6FF; --ink:#101E47; --ink-2:#4A5680; --ink-3:#7C87AB;
  --line:#DCE5F5; --blue:#3867F6; --blue-ink:#2A52D6; --violet:#8069ED; --cyan:#6BDBE0; --cyan-ink:#0B7F87;
  --ok:#1C8F63; --ok-bg:#E3F5EC; --warn:#A8650B; --warn-bg:#FDF1DD; --bad:#C23A52; --bad-bg:#FCE6EA;
  --grad:linear-gradient(120deg,#3867F6 0%,#8069ED 58%,#6BDBE0 120%);
  --grad-soft:linear-gradient(135deg,#EEF3FF 0%,#F3EEFF 55%,#E9FBFC 100%);
  --shadow:0 1px 2px rgba(16,30,71,.05),0 10px 28px rgba(16,30,71,.07);
  --shadow-lg:0 18px 50px rgba(40,60,160,.18);
  --r:18px; --r-s:12px;
  --f:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --fd:"Manrope","Noto Sans SC","PingFang SC",system-ui,sans-serif;
  --fm:"JetBrains Mono",ui-monospace,"SF Mono",Menlo,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0A1130; --bg2:#0F1840; --surface:#131C44; --surface-2:#18234F; --ink:#E9EEFF; --ink-2:#AEB8DC; --ink-3:#7A86AF;
  --line:#27336A; --blue:#7C9BFF; --blue-ink:#A3B7FF; --violet:#A895FF; --cyan-ink:#7FE3E8;
  --ok:#5BD3A0; --ok-bg:#12352A; --warn:#F2B75E; --warn-bg:#3A2A10; --bad:#FF8DA0; --bad-bg:#3D1822;
  --grad-soft:linear-gradient(135deg,#17224F 0%,#1F1C4F 55%,#123341 100%);
  --shadow:0 1px 2px rgba(0,0,0,.3),0 10px 28px rgba(0,0,0,.28); color-scheme:dark;}}
:root[data-theme="dark"]{--bg:#0A1130;--bg2:#0F1840;--surface:#131C44;--surface-2:#18234F;--ink:#E9EEFF;--ink-2:#AEB8DC;--ink-3:#7A86AF;--line:#27336A;--blue:#7C9BFF;--blue-ink:#A3B7FF;--violet:#A895FF;--cyan-ink:#7FE3E8;--ok:#5BD3A0;--ok-bg:#12352A;--warn:#F2B75E;--warn-bg:#3A2A10;--bad:#FF8DA0;--bad-bg:#3D1822;--grad-soft:linear-gradient(135deg,#17224F 0%,#1F1C4F 55%,#123341 100%);--shadow:0 1px 2px rgba(0,0,0,.3),0 10px 28px rgba(0,0,0,.28);color-scheme:dark}

*{box-sizing:border-box} html,body{margin:0;min-height:100%}
body{background:var(--bg);color:var(--ink);font:15px/1.7 var(--f);-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:-20% -10% auto auto;width:60vw;height:60vw;background:radial-gradient(closest-side,rgba(128,105,237,.12),transparent);pointer-events:none;z-index:0}
h1,h2,h3,h4{font-family:var(--fd);line-height:1.3;margin:0;text-wrap:balance} h1{font-size:28px;font-weight:800;letter-spacing:-.01em} h2{font-size:20px;font-weight:800} h3{font-size:16px;font-weight:700}
p{margin:0} a{color:var(--blue-ink)} button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:8px}
.muted{color:var(--ink-2)} .faint{color:var(--ink-3);font-size:13px} .mono{font-family:var(--fm);font-variant-numeric:tabular-nums}
.label{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--ink-3)}
[hidden]{display:none!important}

/* 布局 */
.app{position:relative;z-index:1;display:grid;grid-template-columns:auto minmax(0,1fr);min-height:100vh}
.side{position:sticky;top:0;height:100vh;width:248px;display:flex;flex-direction:column;gap:20px;padding:22px 14px 16px;border-right:1px solid var(--line);background:linear-gradient(180deg,color-mix(in srgb,var(--blue) 6%,var(--surface)) 0%,color-mix(in srgb,var(--cyan) 5%,var(--surface)) 100%);transition:width .2s}
.side.mini{width:78px}
.side.mini .brand-text,.side.mini .nav span,.side.mini .side-card,.side.mini .nav .n,.side.mini .nav-sec{display:none}
.brand{display:flex;align-items:center;gap:11px;padding:0 6px;text-decoration:none;color:inherit}
.brand img{width:40px;height:40px}
.brand-text b{display:block;font-family:var(--fd);font-weight:800;font-size:17px;line-height:1.2}
.brand-text small{color:var(--ink-3);font-size:12px}
.collapse{margin-left:auto;border:none;background:none;color:var(--ink-3);cursor:pointer;padding:6px;border-radius:8px;display:grid}
.collapse:hover{background:var(--surface-2);color:var(--ink)}
.side.mini .collapse{margin:0 auto}
.nav{display:flex;flex-direction:column;gap:3px}
.nav-sec{font-size:11px;font-weight:700;letter-spacing:.1em;color:var(--ink-3);padding:12px 12px 4px}
.nav a{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:13px;color:var(--ink-2);text-decoration:none;font-weight:600;position:relative}
.nav a svg{width:20px;height:20px;flex:none}
.nav a:hover{background:color-mix(in srgb,var(--blue) 8%,transparent);color:var(--ink)}
.nav a[aria-current="page"]{background:var(--grad);color:#fff;box-shadow:0 8px 20px color-mix(in srgb,var(--blue) 30%,transparent)}
.nav .n{margin-left:auto;font-family:var(--fm);font-size:11px;line-height:18px;min-width:20px;text-align:center;border-radius:99px;background:var(--bad-bg);color:var(--bad);padding:0 6px}
.nav a[aria-current="page"] .n{background:rgba(255,255,255,.25);color:#fff}
.side-card{margin-top:auto;display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:16px;background:var(--surface);border:1px solid var(--line);text-decoration:none;color:inherit}
.avatar{width:36px;height:36px;border-radius:12px;display:grid;place-items:center;background:var(--grad);color:#fff;font-weight:800;font-family:var(--fd);flex:none}
.main{min-width:0;padding:26px clamp(16px,3.6vw,44px) 70px;max-width:1240px;width:100%}
.topline{display:flex;align-items:center;gap:12px;justify-content:space-between;margin-bottom:22px;flex-wrap:wrap}
.crumbs{display:flex;gap:6px;align-items:center;font-size:13px;color:var(--ink-3);flex-wrap:wrap}
.crumbs a{color:var(--ink-2);text-decoration:none} .crumbs a:hover{color:var(--blue-ink)}
.pill{display:inline-flex;align-items:center;gap:7px;padding:6px 12px;border-radius:99px;background:var(--surface);border:1px solid var(--line);font-size:13px;color:var(--ink-2);font-weight:600}
.pill i{width:8px;height:8px;border-radius:50%;background:var(--ok)} .pill.off i{background:var(--warn)}
.mobilebar,.bottomnav{display:none}

/* 组件 */
.card h3 > svg,.card h2 > svg{color:var(--blue)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:var(--shadow)}
.stack{display:flex;flex-direction:column;gap:12px} .row{display:flex;gap:10px;align-items:center;flex-wrap:wrap} .between{justify-content:space-between}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:10px 18px;border-radius:12px;font-weight:700;cursor:pointer;text-decoration:none;white-space:nowrap;transition:transform .08s,box-shadow .15s}
.btn:hover{border-color:var(--blue);color:var(--blue-ink)} .btn:active{transform:translateY(1px)}
.btn svg{width:18px;height:18px}
.btn.primary{background:var(--grad);border-color:transparent;color:#fff;box-shadow:0 8px 20px color-mix(in srgb,var(--blue) 28%,transparent)}
.btn.primary:hover{color:#fff;box-shadow:0 10px 26px color-mix(in srgb,var(--blue) 38%,transparent)}
.btn.ghost{border-color:transparent;background:transparent;color:var(--ink-2)} .btn.ghost:hover{background:var(--surface-2);color:var(--ink)}
.btn.small{padding:6px 12px;font-size:13px;border-radius:10px} .btn.block{width:100%}
.btn.danger{color:var(--bad)} .btn[disabled]{opacity:.5;pointer-events:none}
.chip{display:inline-flex;align-items:center;gap:5px;padding:2px 10px;border-radius:99px;font-size:12px;font-weight:700;background:var(--surface-2);color:var(--ink-2);white-space:nowrap}
.chip.ok{background:var(--ok-bg);color:var(--ok)} .chip.warn{background:var(--warn-bg);color:var(--warn)} .chip.bad{background:var(--bad-bg);color:var(--bad)} .chip.info{background:color-mix(in srgb,var(--blue) 12%,var(--surface));color:var(--blue-ink)} .chip.vi{background:color-mix(in srgb,var(--violet) 14%,var(--surface));color:var(--violet)}
.input,select.input,textarea.input{width:100%;border:1.5px solid var(--line);background:var(--surface);border-radius:12px;padding:10px 13px}
textarea.input{min-height:96px;resize:vertical;line-height:1.65}
.input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px color-mix(in srgb,var(--blue) 15%,transparent)}
.field{display:flex;flex-direction:column;gap:6px} .field>span{font-size:13px;font-weight:700;color:var(--ink-2)}
.notice{padding:11px 15px;border-radius:12px;background:var(--surface-2);color:var(--ink-2);font-size:14px}
.notice.warn{background:var(--warn-bg);color:var(--warn)} .notice.bad{background:var(--bad-bg);color:var(--bad)} .notice.ok{background:var(--ok-bg);color:var(--ok)}
.empty{display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px;padding:34px 20px;border:1.5px dashed var(--line);border-radius:var(--r)}
.empty img{width:96px;opacity:.95}
.toast{position:fixed;left:50%;bottom:calc(26px + env(safe-area-inset-bottom));transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:11px 20px;border-radius:14px;font-size:14px;z-index:90;box-shadow:var(--shadow-lg);max-width:calc(100% - 32px)}
.spinner{width:18px;height:18px;border-radius:50%;border:2.5px solid color-mix(in srgb,var(--blue) 25%,transparent);border-top-color:var(--blue);animation:spin .8s linear infinite;flex:none}
@keyframes spin{to{transform:rotate(360deg)}}
.dots{display:inline-flex;gap:4px} .dots i{width:6px;height:6px;border-radius:50%;background:var(--violet);animation:blink 1.2s infinite} .dots i:nth-child(2){animation-delay:.2s} .dots i:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,80%,100%{opacity:.25}40%{opacity:1}}
.tabs{display:flex;gap:4px;padding:5px;border-radius:15px;background:var(--surface-2);overflow-x:auto;max-width:100%;align-self:flex-start;position:sticky;top:10px;z-index:5;box-shadow:var(--shadow)}
.tabs a{padding:9px 18px;border-radius:11px;color:var(--ink-2);font-weight:700;text-decoration:none;white-space:nowrap;display:inline-flex;gap:6px;align-items:center}
.tabs a[aria-current="page"]{background:var(--surface);color:var(--blue-ink);box-shadow:0 2px 8px rgba(16,30,71,.08)}
.tabs a .n{font-family:var(--fm);font-size:11px;color:var(--ink-3)}
table.t{width:100%;border-collapse:collapse;font-size:14px}
table.t th{text-align:left;font-size:12px;letter-spacing:.06em;color:var(--ink-3);padding:8px 10px;border-bottom:1px solid var(--line);white-space:nowrap}
table.t td{padding:11px 10px;border-bottom:1px solid var(--line);vertical-align:top}
table.t tr:hover td{background:color-mix(in srgb,var(--blue) 3%,transparent)}
.tablewrap{overflow-x:auto}

/* 首页（教练式） */
.home{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:22px;align-items:start}
.hero{position:relative;overflow:hidden;border-radius:26px;padding:28px 30px;color:#fff;background:var(--grad);box-shadow:var(--shadow-lg);display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:10px;align-items:center;min-height:250px}
.hero::after{content:"";position:absolute;inset:auto -80px -120px auto;width:340px;height:340px;border-radius:50%;background:radial-gradient(closest-side,rgba(255,255,255,.22),transparent)}
.hero .tag{display:inline-flex;align-self:flex-start;padding:5px 14px;border-radius:99px;background:rgba(255,255,255,.2);font-size:13px;font-weight:700;backdrop-filter:blur(6px)}
.hero h2{font-size:clamp(22px,3vw,32px);color:#fff;margin:12px 0 8px}
.hero p{color:rgba(255,255,255,.92);max-width:52ch}
.hero .row{margin-top:18px}
.hero .btn.primary{background:#fff;color:#2A3FB0;box-shadow:0 10px 24px rgba(10,20,80,.25)} .hero .btn.primary:hover{color:#1E2F90}
.hero .btn.ghostw{background:rgba(255,255,255,.12);border:1.5px solid rgba(255,255,255,.55);color:#fff}
.hero img{width:100%;max-width:300px;justify-self:end;position:relative;z-index:1;animation:float 6s ease-in-out infinite}
@keyframes float{50%{transform:translateY(-8px)}}
.steps4{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;padding:14px;margin-top:18px}
.step{display:flex;gap:10px;align-items:flex-start;padding:10px 12px;border-radius:14px;position:relative}
.step .no{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:13px;background:var(--surface-2);color:var(--ink-3);flex:none}
.step b{display:block;font-size:14px} .step span{font-size:12px;color:var(--ink-3)}
.step.done .no{background:var(--ok-bg);color:var(--ok)}
.step.now{background:color-mix(in srgb,var(--blue) 7%,var(--surface));outline:1.5px solid color-mix(in srgb,var(--blue) 35%,transparent)}
.step.now .no{background:var(--grad);color:#fff} .step.now b{color:var(--blue-ink)}
.coursecard{display:flex;gap:14px;align-items:center;padding:12px;border-radius:16px;border:1px solid var(--line);text-decoration:none;color:inherit;background:var(--surface)}
.coursecard:hover{border-color:var(--blue);box-shadow:var(--shadow)}
.cbadge{width:62px;height:62px;border-radius:16px;display:grid;place-items:center;text-align:center;color:#fff;font-family:var(--fd);font-weight:800;font-size:13px;line-height:1.15;flex:none;background:var(--grad);padding:4px;overflow:hidden;word-break:break-all}
.cbadge.c1{background:linear-gradient(135deg,#8069ED,#B07CF2)} .cbadge.c2{background:linear-gradient(135deg,#3867F6,#5BA8F7)} .cbadge.c3{background:linear-gradient(135deg,#0FA3B1,#6BDBE0)} .cbadge.c4{background:linear-gradient(135deg,#E8618C,#F2A3B6)}
.sugg{display:flex;gap:12px;align-items:center;padding:12px;border-radius:14px;text-decoration:none;color:inherit;border:1px solid transparent;cursor:pointer;background:none;text-align:left;width:100%}
.sugg:hover{background:var(--surface-2);border-color:var(--line)}
.sugg .ic{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;flex:none;color:#fff}
.sugg .ic svg{width:20px;height:20px}
.sugg b{display:block;font-size:14px} .sugg span{font-size:12.5px;color:var(--ink-3)}
.butler{position:sticky;top:20px;border-radius:24px;overflow:hidden;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow)}
.butler-top{background:var(--grad-soft);padding:18px 18px 0;display:flex;flex-direction:column;align-items:center;text-align:center}
.butler-top img{width:150px;margin-bottom:-6px;animation:float 5s ease-in-out infinite}
.butler-body{padding:18px;display:flex;flex-direction:column;gap:12px}
.stat3{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.stat{border:1px solid var(--line);border-radius:14px;padding:10px 12px;min-width:0}
.stat span{display:block;font-size:12px;color:var(--ink-3)} .stat b{font-family:var(--fd);font-size:24px;font-variant-numeric:tabular-nums;line-height:1.2}
.stat b small{font-size:12px;color:var(--ink-3);margin-left:2px;font-weight:600}
.stat.hot{background:var(--grad);border-color:transparent;color:#fff} .stat.hot span,.stat.hot b small{color:rgba(255,255,255,.85)}
.revlist a{display:flex;align-items:center;gap:10px;padding:10px 0 10px 12px;border-bottom:1px solid var(--line);text-decoration:none;color:inherit;position:relative}
.revlist a::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:3px;background:var(--grad)}
.revlist a:last-child{border-bottom:none} .revlist .m{flex:1;min-width:0} .revlist b{display:block;font-size:14px;overflow-wrap:anywhere} .revlist span{font-size:12px;color:var(--ink-3)}

/* 欢迎页与引导 */
.welcome{min-height:100vh;display:grid;grid-template-columns:1.1fr 1fr;position:relative;z-index:1}
.wl{padding:48px clamp(20px,6vw,80px);display:flex;flex-direction:column;justify-content:center;gap:22px}
.wr{background:var(--grad);position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;padding:40px}
.wr::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 20%,rgba(255,255,255,.25),transparent 40%),radial-gradient(circle at 80% 90%,rgba(107,219,224,.5),transparent 45%)}
.wr .scene{position:relative;display:flex;flex-direction:column;align-items:center;gap:16px;color:#fff;text-align:center;max-width:420px}
.wr .scene img.m{width:220px;animation:float 5s ease-in-out infinite}
.bubble-w{background:rgba(255,255,255,.18);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.35);border-radius:18px;padding:14px 18px;font-size:15px;text-align:left}
.wl h1{font-size:clamp(30px,4.4vw,46px);line-height:1.2}
.wl h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.flow3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.flow3 div{padding:14px;border-radius:16px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow)}
.flow3 b{display:block;font-family:var(--fd)} .flow3 span{font-size:13px;color:var(--ink-3)}
.flow3 i{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:9px;background:var(--grad);color:#fff;font-style:normal;font-weight:800;font-size:13px;margin-bottom:6px}
.auth{max-width:440px;width:100%}
.opts{display:flex;gap:8px;flex-wrap:wrap}
.opt{border:1.5px solid var(--line);background:var(--surface);border-radius:12px;padding:9px 15px;cursor:pointer;font-weight:600}
.opt[aria-pressed="true"]{border-color:var(--blue);background:color-mix(in srgb,var(--blue) 9%,var(--surface));color:var(--blue-ink)}
.stepper{display:flex;gap:6px} .stepper i{height:6px;flex:1;border-radius:99px;background:var(--line)} .stepper i.on{background:var(--grad)}
.seg{display:flex;padding:4px;border-radius:12px;background:var(--surface-2)} .seg button{flex:1;border:none;background:none;padding:8px;border-radius:9px;font-weight:700;color:var(--ink-2);cursor:pointer} .seg button[aria-pressed="true"]{background:var(--surface);color:var(--blue-ink);box-shadow:0 2px 6px rgba(0,0,0,.06)}

/* 资料 */
.drop{border:2px dashed color-mix(in srgb,var(--blue) 40%,var(--line));border-radius:var(--r);padding:22px;display:flex;gap:16px;align-items:center;flex-wrap:wrap;background:color-mix(in srgb,var(--blue) 4%,var(--surface))}
.drop.over{background:color-mix(in srgb,var(--blue) 12%,var(--surface))}
.drop .ic{width:52px;height:52px;border-radius:16px;background:var(--grad);display:grid;place-items:center;color:#fff;flex:none} .drop .ic svg{width:26px;height:26px}
.mat{display:flex;flex-direction:column;gap:12px}
.mat-head{display:flex;gap:12px;align-items:flex-start;flex-wrap:wrap}
.ficon{width:42px;height:50px;border-radius:9px;flex:none;display:grid;place-items:end center;padding-bottom:6px;font-family:var(--fm);font-size:10px;font-weight:800;color:var(--blue-ink);background:var(--surface-2);border:1px solid var(--line);position:relative}
.ficon::before{content:"";position:absolute;right:-1px;top:-1px;width:12px;height:12px;background:var(--bg);border-left:1px solid var(--line);border-bottom:1px solid var(--line);border-radius:0 9px 0 6px}
.pages{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px}
.page{border:1px solid var(--line);border-radius:12px;padding:10px 12px;background:var(--surface);cursor:pointer;text-align:left;display:flex;flex-direction:column;gap:5px}
.page:hover{border-color:var(--blue)} .page.off{opacity:.45}
.page .pv{font-size:12.5px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden;overflow-wrap:anywhere;line-height:1.5}

/* 精讲 */
.lec-hero{background:var(--grad-soft);border:1px solid var(--line);border-radius:22px;padding:22px;display:flex;gap:18px;align-items:flex-start;flex-wrap:wrap}
.lec-hero .overview{font-size:16px;line-height:1.85;max-width:72ch}
.point{display:flex;flex-direction:column;gap:12px}
.point-top{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.point .num{font-family:var(--fm);font-size:12px;color:var(--ink-3)}
.body{white-space:pre-wrap;overflow-wrap:anywhere;max-width:74ch;line-height:1.85}
.box{border-radius:12px;padding:11px 15px;font-size:14.5px;white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.75}
.box b{display:block;font-size:12px;letter-spacing:.06em;color:var(--ink-3);margin-bottom:2px}
.box.why{background:var(--surface-2)} .box.ex{background:color-mix(in srgb,var(--cyan) 13%,var(--surface))} .box.pit{background:var(--warn-bg)} .box.pit b{color:var(--warn)}
.refs{display:flex;gap:6px;flex-wrap:wrap}
.ref{display:inline-flex;align-items:center;gap:6px;font-family:var(--fm);font-size:11.5px;padding:3px 10px;border-radius:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink-2);cursor:pointer}
.ref:hover{border-color:var(--blue);color:var(--blue-ink)}
.ref::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--warn)} .ref.ok::before{background:var(--ok)}
.meter{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.bar{height:8px;border-radius:99px;background:var(--surface-2);overflow:hidden;flex:1;min-width:120px} .bar i{display:block;height:100%;background:var(--grad);border-radius:99px}
details.sc{border:1px solid var(--line);border-radius:12px;padding:10px 14px;background:var(--surface)} details.sc summary{cursor:pointer;font-weight:700}

/* 问小伴 */
.chat{display:flex;flex-direction:column;gap:16px}
.msg{display:grid;grid-template-columns:38px minmax(0,1fr);gap:10px;max-width:820px}
.msg img{width:38px;height:38px}
.msg .bub{background:var(--surface);border:1px solid var(--line);border-radius:4px 16px 16px 16px;padding:12px 16px;white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.8;box-shadow:var(--shadow)}
.msg.me{grid-template-columns:minmax(0,1fr);justify-self:end} .msg.me .bub{background:var(--grad);color:#fff;border:none;border-radius:16px 4px 16px 16px}
.cite{display:inline-flex;font-family:var(--fm);font-size:11px;padding:0 7px;margin:0 2px;border-radius:6px;background:var(--surface-2);color:var(--blue-ink);cursor:pointer;border:none;vertical-align:1px}
.composer{position:sticky;bottom:12px;display:flex;flex-direction:column;gap:10px;padding:14px;background:var(--surface);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-lg)}
.composer textarea{flex:1;min-width:0;width:100%;border:none;min-height:46px;max-height:200px;resize:none;background:transparent;padding:4px;outline:none}
.qchips{display:flex;gap:8px;flex-wrap:wrap} .qchips button{border:1px solid color-mix(in srgb,var(--blue) 25%,var(--line));background:color-mix(in srgb,var(--blue) 5%,var(--surface));border-radius:99px;padding:6px 13px;font-size:13px;cursor:pointer;color:var(--ink-2)}
.qchips button:hover{border-color:var(--blue);color:var(--blue-ink)}

/* 试卷 */
.sheet{background:var(--surface);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);overflow:hidden}
.sheet-head{padding:24px 28px;border-bottom:2px solid var(--ink);display:grid;grid-template-columns:minmax(0,1fr) auto;gap:16px;align-items:end;background:repeating-linear-gradient(0deg,transparent 0 31px,color-mix(in srgb,var(--blue) 5%,transparent) 31px 32px)}
.sheet-head h1{font-size:24px}
.sheet-meta{display:flex;gap:18px;flex-wrap:wrap;font-size:13px;color:var(--ink-2)} .sheet-meta b{color:var(--ink);font-family:var(--fd)}
.scorebox{border:2px solid var(--ink);border-radius:12px;padding:8px 16px;text-align:center;min-width:110px}
.scorebox b{display:block;font-family:var(--fd);font-size:28px;line-height:1.1} .scorebox span{font-size:12px;color:var(--ink-3)}
.instr{padding:14px 28px;background:var(--surface-2);font-size:14px;color:var(--ink-2)}
.section{padding:22px 28px;border-top:1px solid var(--line)}
.section > h3{display:flex;gap:10px;align-items:baseline;margin-bottom:4px} .section > h3 small{font-weight:600;color:var(--ink-3);font-size:13px}
.q{padding:16px 0;border-bottom:1px dashed var(--line);display:flex;flex-direction:column;gap:10px}
.q:last-child{border-bottom:none}
.qh{display:flex;gap:10px;align-items:baseline}
.qno{font-family:var(--fd);font-weight:800;min-width:34px} .qmarks{margin-left:auto;font-size:12px;color:var(--ink-3);white-space:nowrap;font-family:var(--fm)}
.stem{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.8;flex:1}
.material{background:var(--surface-2);border-left:4px solid var(--violet);border-radius:0 12px 12px 0;padding:12px 16px;white-space:pre-wrap;font-size:15px;overflow-x:auto;line-height:1.8}
.material.code{font-family:var(--fm);font-size:14px;line-height:1.6}
.choices{display:flex;flex-direction:column;gap:8px;padding-left:44px}
.choice{display:flex;gap:10px;align-items:flex-start;text-align:left;border:1.5px solid var(--line);background:var(--surface);border-radius:12px;padding:9px 14px;cursor:pointer;overflow-wrap:anywhere;line-height:1.6}
.choice:hover:not([disabled]){border-color:var(--blue)}
.choice[aria-checked="true"]{border-color:var(--blue);background:color-mix(in srgb,var(--blue) 8%,var(--surface))}
.choice .k{font-family:var(--fm);font-weight:800;color:var(--ink-3);width:18px;flex:none}
.choice.right{border-color:var(--ok);background:var(--ok-bg)} .choice.wrong{border-color:var(--bad);background:var(--bad-bg)} .choice[disabled]{cursor:default}
.ans{padding-left:44px} .ans .input{font-family:var(--f)}
.blank{display:inline-block;width:160px;margin:2px 4px}
.verdict{border-radius:12px;padding:10px 14px;font-size:14px;white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.7;margin-left:44px}
.verdict b{display:block;font-size:12px;letter-spacing:.06em;color:var(--ink-3);margin-bottom:2px}
.verdict.ok{background:var(--ok-bg)} .verdict.bad{background:var(--bad-bg)} .verdict.part{background:var(--warn-bg)} .verdict.n{background:var(--surface-2)}
.submitbar{position:sticky;bottom:12px;z-index:6;display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap;padding:12px 16px;border-radius:18px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-lg)}
.ring{--p:0;width:120px;height:120px;border-radius:50%;flex:none;display:grid;place-items:center;background:conic-gradient(from -90deg,#3867F6 0,#8069ED calc(var(--p)*.6%),#6BDBE0 calc(var(--p)*1%),var(--surface-2) 0)}
.ring>div{width:94px;height:94px;border-radius:50%;background:var(--surface);display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1.1}
.ring b{font-family:var(--fd);font-size:30px} .ring span{font-size:12px;color:var(--ink-3)}
.kpbar{display:flex;height:14px;border-radius:99px;overflow:hidden;background:var(--surface-2)}
.photos{display:flex;gap:8px;flex-wrap:wrap}

/* 抽屉 */
.scrim{position:fixed;inset:0;background:rgba(10,17,48,.38);z-index:40}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(600px,100%);background:var(--surface);z-index:41;display:flex;flex-direction:column;box-shadow:-12px 0 40px rgba(10,17,48,.2)}
.drawer-h{display:flex;gap:10px;align-items:center;justify-content:space-between;padding:calc(14px + env(safe-area-inset-top)) 18px 14px;border-bottom:1px solid var(--line)}
.drawer-b{flex:1;overflow:auto;padding:18px} .drawer-f{display:flex;gap:8px;justify-content:space-between;padding:12px 18px calc(12px + env(safe-area-inset-bottom));border-top:1px solid var(--line)}
.pagetext{white-space:pre-wrap;overflow-wrap:anywhere;font-size:14.5px;line-height:1.8} .pagetext mark{background:#FFE9A8;color:#101E47;border-radius:3px;padding:0 2px}

/* 老师端 */
.flags{display:flex;gap:5px;flex-wrap:wrap}
.codebox{font-family:var(--fm);font-size:22px;font-weight:800;letter-spacing:.12em;padding:8px 14px;border-radius:12px;background:var(--surface-2);border:1.5px dashed var(--blue)}

/* 打印：只打印卷面 */
@media print{
  body{background:#fff} body::before{display:none} .side,.mobilebar,.bottomnav,.topline,.submitbar,.noprint,.tabs{display:none!important}
  .app{display:block} .main{padding:0;max-width:none} .sheet{border:none;box-shadow:none}
  .ans .input{border:none;border-bottom:1px solid #999;border-radius:0;min-height:120px} .choice{border:none;padding:2px 0}
}

/* 手机 */
@media (max-width:1100px){.home{grid-template-columns:1fr}.butler{position:static}}
@media (max-width:900px){
  .app{grid-template-columns:minmax(0,1fr)} .side{display:none}
  .mobilebar{display:flex;position:sticky;top:0;z-index:20;align-items:center;justify-content:space-between;gap:10px;padding:calc(10px + env(safe-area-inset-top)) 16px 10px;background:color-mix(in srgb,var(--surface) 92%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
  .mobilebar .brand img{width:32px;height:32px}
  .bottomnav{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:20;background:var(--surface);border-top:1px solid var(--line);padding:6px 4px calc(6px + env(safe-area-inset-bottom))}
  .bottomnav a{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;font-size:11px;color:var(--ink-3);text-decoration:none;padding:4px 0;position:relative}
  .bottomnav a svg{width:22px;height:22px} .bottomnav a[aria-current="page"]{color:var(--blue-ink);font-weight:700}
  .bottomnav .n{position:absolute;top:0;left:calc(50% + 6px);font-size:10px;line-height:15px;min-width:15px;padding:0 4px;border-radius:99px;background:var(--bad);color:#fff;text-align:center}
  .main{padding:16px 16px 100px}
  .hero{grid-template-columns:1fr;padding:22px;min-height:0} .hero img{max-width:180px;justify-self:center;order:-1;margin-bottom:-6px}
  .steps4{grid-template-columns:1fr 1fr}
  .welcome{grid-template-columns:1fr} .wr{min-height:0;order:-1;padding:18px 16px} .wr .scene{flex-direction:row;gap:12px;text-align:left} .wr .scene img.m{width:84px} .wr .scene img:not(.m){display:none} .wr .bubble-w{font-size:13px;padding:10px 12px} .wl{padding:22px 16px 40px;gap:16px} .wl h1{font-size:28px}
  .flow3{grid-template-columns:1fr}
  .sheet-head{grid-template-columns:1fr;padding:18px} .section,.instr{padding-left:16px;padding-right:16px}
  .choices,.ans{padding-left:0} .verdict{margin-left:0}
  .composer{bottom:76px} .submitbar{bottom:72px}
  h1{font-size:24px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* 手机上收起次要说明，让表单尽快出现 */
@media (max-width:640px){.hide-sm{display:none}.gen-intro{padding:14px 16px}}

/* 自动滚到最新消息时，别让浮在底部的输入框盖住最后几行 */
.chat .msg{scroll-margin-bottom:170px}
@media (max-width:640px){.chat .msg{scroll-margin-bottom:250px}}
.assess{display:flex;flex-direction:column}.arow{display:flex;gap:14px;align-items:center;padding:12px 2px;border-bottom:1px solid var(--line)}.arow:last-child{border-bottom:none}.arow.past{opacity:.55}.adate{width:76px;flex-shrink:0;font-weight:800;color:var(--brand,#3867F6);display:flex;flex-direction:column}.adate small{font-weight:500;color:var(--ink-3);font-size:12px;line-height:1.3}
.toast.link{cursor:pointer;border:none;font:inherit}

/* 问学习教练：能力卡、追问按钮、打字光标 */
.caps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.cap{display:flex;flex-direction:column;gap:4px;text-align:left;padding:16px;border-radius:18px;border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow);cursor:pointer;font:inherit;color:inherit;transition:transform .15s,border-color .15s}
.cap:hover{transform:translateY(-2px);border-color:color-mix(in srgb,var(--blue) 40%,var(--line))}
.cap .ic{width:36px;height:36px;border-radius:12px;display:grid;place-items:center;background:var(--grad);color:#fff;margin-bottom:6px}
.cap span{color:var(--ink-3);font-size:13px} .cap em{font-style:normal;font-size:12.5px;color:var(--blue-ink);margin-top:4px;line-height:1.5}
.qchips.follow{margin-top:12px;align-items:center;white-space:normal}
.caret{display:inline-block;width:8px;height:1.1em;margin-left:2px;vertical-align:-2px;background:var(--blue);border-radius:2px;animation:blink 1s steps(2) infinite}
@keyframes blink{50%{opacity:0}}
@media (max-width:900px){.caps{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* 新手任务 */
.quest{display:flex;flex-direction:column;gap:14px;margin-top:18px;background:linear-gradient(135deg,color-mix(in srgb,var(--blue) 6%,var(--surface)),var(--surface))}
.quest h3{margin:2px 0 0}
.qbar{width:140px;height:8px;border-radius:99px;background:var(--surface-2);overflow:hidden} .qbar i{display:block;height:100%;background:var(--grad);border-radius:99px;transition:width .4s}
.qlist{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}
.qitem{display:flex;flex-direction:column;gap:6px;align-items:flex-start;text-align:left;padding:14px;border-radius:16px;border:1px solid var(--line);background:var(--surface);cursor:pointer;font:inherit;color:inherit;transition:transform .15s,border-color .15s}
.qitem:hover{transform:translateY(-2px);border-color:var(--blue)}
.qitem b{font-size:14px} .qitem span:not(.qic):not(.chip){font-size:12px;color:var(--ink-3);line-height:1.5}
.qitem .qic{width:32px;height:32px;border-radius:10px;display:grid;place-items:center;background:var(--surface-2);color:var(--ink-3);font-weight:800}
.qitem.ok{opacity:.72} .qitem.ok .qic{background:color-mix(in srgb,#22B573 18%,var(--surface));color:#159a5d}
.qitem.now{border-color:var(--blue);box-shadow:0 0 0 3px color-mix(in srgb,var(--blue) 14%,transparent)} .qitem.now .qic{background:var(--grad);color:#fff}
.quest.done-all{background:linear-gradient(135deg,color-mix(in srgb,#22B573 10%,var(--surface)),var(--surface))}
/* 学习足迹 */
.trail{display:flex;flex-direction:column;gap:8px;padding:12px 14px;border:1px solid var(--line);border-radius:16px;background:var(--surface-2)}
.tdots{display:grid;grid-template-columns:repeat(14,1fr);gap:4px} .tdots i{aspect-ratio:1;border-radius:5px;background:color-mix(in srgb,var(--ink-3) 14%,transparent)}
.tdots i.l1{background:color-mix(in srgb,var(--blue) 35%,transparent)} .tdots i.l2{background:color-mix(in srgb,var(--blue) 65%,transparent)} .tdots i.l3{background:var(--blue)}
@media (max-width:900px){.qlist{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.qlist{grid-template-columns:1fr}.qitem{flex-direction:row;align-items:center}.qitem div{flex:1}.qbar{width:90px}}
.qitem>div{display:flex;flex-direction:column;gap:3px}
/* 首次导览 */
.tour-mask{position:fixed;inset:0;z-index:90;pointer-events:auto}
.tour-hole{position:fixed;z-index:91;border-radius:14px;box-shadow:0 0 0 9999px rgba(12,20,52,.55),0 0 0 3px var(--cyan);transition:all .25s;pointer-events:none}
.tour-card{position:fixed;z-index:92;width:min(320px,calc(100vw - 32px));background:var(--surface);border-radius:18px;padding:16px 18px;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;gap:10px;transition:top .25s,left .25s}
.tour-card .tdot{display:flex;gap:5px} .tour-card .tdot i{width:7px;height:7px;border-radius:9px;background:var(--line)} .tour-card .tdot i.on{background:var(--blue);width:18px}
.tour-card img{width:44px;height:44px}

/* 欢迎页下半部分 */
.landing{position:relative;z-index:1;padding:20px clamp(16px,6vw,80px) 60px;display:flex;flex-direction:column;gap:56px;max-width:1200px;margin:0 auto}
.lsec{display:flex;flex-direction:column;gap:10px} .lsec h2{font-size:clamp(22px,3vw,30px);margin:0}
.feats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:10px}
.feat{display:flex;flex-direction:column;gap:6px;padding:20px;border-radius:20px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow)}
.feat .ic{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--grad);color:#fff;margin-bottom:4px} .feat span:not(.ic){color:var(--ink-3);font-size:14px;line-height:1.7}
.samples{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:10px}
.sample{background:#fffdf7;color:#1c2333;border-radius:14px;padding:20px 22px;box-shadow:var(--shadow-lg);border:1px solid #ece6d6;font-family:'Noto Serif SC',serif;transform:rotate(-.4deg)}
.sample:nth-child(2){transform:rotate(.5deg)} .sample .sh{display:flex;flex-direction:column;gap:2px;border-bottom:2px solid #1c2333;padding-bottom:8px;margin-bottom:8px;text-align:center}
.sample .sh span{font-size:12px;color:#6b7280} .sample p{margin:6px 0;font-size:14px;line-height:1.75} .sample p.sec{font-weight:800;margin-top:12px}
.qchips.big button{padding:10px 18px;font-size:15px;display:inline-flex;gap:6px;align-items:center}
.faq{display:flex;flex-direction:column;gap:10px;margin-top:6px} .faq details{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:14px 18px}
.faq summary{cursor:pointer;font-weight:700;list-style:none} .faq summary::after{content:"＋";float:right;color:var(--blue)} .faq details[open] summary::after{content:"－"} .faq p{margin:10px 0 0;color:var(--ink-2);line-height:1.8}
.lsec.cta{flex-direction:row;align-items:center;gap:20px;padding:28px;border-radius:24px;background:var(--grad);color:#fff;flex-wrap:wrap} .lsec.cta img{width:90px} .lsec.cta div:nth-child(2){flex:1;min-width:220px} .lsec.cta p{opacity:.9;margin:6px 0 0}
@media (max-width:900px){.feats{grid-template-columns:1fr 1fr}.samples{grid-template-columns:1fr}}
@media (max-width:640px){.feats{grid-template-columns:1fr}.landing{gap:40px}}
.lsec.cta .btn.ghostw{background:rgba(255,255,255,.12);border:1.5px solid rgba(255,255,255,.55);color:#fff}
.btn.pulse{animation:pulse 1.4s ease-in-out 4}@keyframes pulse{0%,100%{box-shadow:0 0 0 0 color-mix(in srgb,var(--blue) 45%,transparent)}50%{box-shadow:0 0 0 10px transparent}}
@media (max-width:640px){.cap{padding:12px;gap:2px}.cap>span:not(.ic){display:none}.cap .ic{width:30px;height:30px;margin-bottom:2px}}
.linkbtn{align-self:flex-start;border:none;background:none;color:var(--blue-ink);font:inherit;font-weight:700;cursor:pointer;padding:0}

/* 空页面的示例与引导 */
.ex-intro{display:flex;gap:16px;align-items:center;padding:18px 20px;border-radius:20px;background:var(--grad-soft);border:1px solid var(--line)}
.ex-intro img{width:72px;flex-shrink:0} .ex-intro h3{margin:0 0 4px} .ex-intro p{margin:0;line-height:1.75}
.demo{position:relative;display:flex;flex-direction:column;gap:10px;padding:20px;border-radius:20px;border:1.5px dashed color-mix(in srgb,var(--blue) 35%,var(--line));background:color-mix(in srgb,var(--surface) 70%,transparent)}
.demo-tag{position:absolute;top:-11px;left:18px;background:var(--grad);color:#fff;font-size:12px;font-weight:800;padding:2px 10px;border-radius:99px}
.demo-title{font-weight:800;color:var(--ink-2)}
.demo-course{display:flex;gap:14px;align-items:center}
.demo-row{display:flex;justify-content:space-between;gap:10px;align-items:center;padding:10px 12px;border-radius:12px;background:var(--surface);border:1px solid var(--line);flex-wrap:wrap}
.demo-quote{padding:12px 14px;border-left:3px solid var(--blue);background:var(--surface);border-radius:8px;color:var(--ink-2);line-height:1.75;font-size:14px}
.demo-score{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap} .demo-score b{font-size:40px;font-family:var(--fd);background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent} .demo-score span{color:var(--ink-3)}
.demo-q{font-weight:600;line-height:1.7} .demo-ans{display:flex;gap:12px} .demo-ans div{flex:1;padding:10px 12px;border-radius:12px;background:var(--surface);border:1px solid var(--line);display:flex;flex-direction:column;gap:2px} .demo-ans span{font-size:12px;color:var(--ink-3)}
.demo-ans b.bad{color:#d64545} .demo-ans b.ok{color:#159a5d}
.demo-trend{display:flex;gap:18px;align-items:flex-end;height:170px;padding:10px 4px} .demo-trend div{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:4px;height:100%} .demo-trend i{width:100%;max-width:70px;border-radius:10px 10px 4px 4px;background:var(--grad)} .demo-trend span{font-size:12px;color:var(--ink-3)}
.demo-kp{display:grid;grid-template-columns:160px 1fr auto;gap:12px;align-items:center} .demo-kp .bar{height:8px;border-radius:9px;background:var(--surface-2);overflow:hidden} .demo-kp .bar i{display:block;height:100%;border-radius:9px}
.demo-kp .bar i.ok{background:#22B573} .demo-kp .bar i.info{background:var(--blue)} .demo-kp .bar i.warn{background:#F2A33A} .demo-kp .bar i.bad{background:#E5484D}
.ways{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.way{display:flex;flex-direction:column;gap:6px;align-items:flex-start;padding:16px;border-radius:18px;background:var(--surface);border:1px solid var(--line)} .way .ic{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;background:var(--grad);color:#fff} .way span:not(.ic){font-size:13px;color:var(--ink-3);line-height:1.6}
@media (max-width:640px){.ex-intro{flex-direction:column;text-align:center}.ex-intro img{width:60px}.demo-kp{grid-template-columns:1fr auto}.demo-kp .bar{grid-column:1/-1;order:3}}
.tr{display:block;color:var(--ink-3);font-size:.92em;margin-top:2px;font-weight:400}.tr::before{content:'译 ';font-size:11px;font-weight:800;color:var(--cyan-ink);background:color-mix(in srgb,var(--cyan) 18%,transparent);border-radius:4px;padding:0 4px;margin-right:4px}
.grid5{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px} .grid5 .stat{display:flex;flex-direction:column;gap:4px}
.badges{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
.badge{display:flex;flex-direction:column;align-items:center;gap:2px;text-align:center;padding:12px 6px;border-radius:14px;border:1px solid var(--line);background:var(--surface-2);filter:grayscale(1);opacity:.55}
.badge.on{filter:none;opacity:1;background:linear-gradient(135deg,color-mix(in srgb,var(--blue) 8%,var(--surface)),var(--surface));border-color:color-mix(in srgb,var(--blue) 30%,var(--line))}
.badge .e{font-size:24px} .badge b{font-size:13px} .badge span:not(.e){font-size:11px;color:var(--ink-3)}
details.prefs summary{cursor:pointer;list-style:none} details.prefs summary::after{content:"展开 ▾";float:right;color:var(--blue-ink);font-size:13px} details.prefs[open] summary::after{content:"收起 ▴"}
@media (max-width:900px){.grid5{grid-template-columns:repeat(3,1fr)}} @media (max-width:640px){.grid5{grid-template-columns:repeat(2,1fr)}.badges{grid-template-columns:repeat(4,1fr)}}
.wgroup{display:flex;flex-direction:column;gap:10px;padding-top:10px;border-top:1px solid var(--line)} .wkp{border:1px solid var(--line);border-radius:14px;padding:10px 14px;background:var(--surface-2)} .wkp summary{cursor:pointer;list-style:none} .wcard{text-decoration:none;color:inherit;padding:14px 16px;gap:6px;box-shadow:none}
tr.rowlink{cursor:pointer} tr.rowlink:hover td{background:var(--surface-2)} .ctable{gap:14px}

/* 范例试卷 */
.samplegrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px}
.scard{display:flex;flex-direction:column;gap:6px;padding:16px;border-radius:18px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);text-decoration:none;color:inherit;transition:transform .15s,border-color .15s}
.scard:hover{transform:translateY(-3px);border-color:var(--blue)}
.spaper{height:96px;border-radius:10px;background:#fffdf7;border:1px solid #ece6d6;padding:12px 14px;display:flex;flex-direction:column;gap:8px;margin-bottom:6px;box-shadow:inset 0 -12px 20px -16px rgba(0,0,0,.15)}
.spaper i{display:block;height:6px;border-radius:4px;background:#d9d2c0} .spaper i:first-child{width:60%;margin:0 auto;background:#9a917c} .spaper i.short{width:55%}
.psheet{background:#fffdf7;color:#1c2333;border:1px solid #ece6d6;border-radius:6px;box-shadow:var(--shadow-lg);padding:clamp(18px,5vw,56px);font-family:'Noto Serif SC',serif;max-width:900px;width:100%;margin:0 auto}
.phead{text-align:center;border-bottom:2px solid #1c2333;padding-bottom:12px;margin-bottom:14px} .phead h2{margin:6px 0;font-size:24px} .pmeta{font-size:13px;color:#555;margin-top:6px}
.pnotes{font-size:13.5px;border:1px solid #cfc7b2;padding:10px 14px;margin-bottom:14px} .pnotes ol{margin:6px 0 0;padding-left:20px}
.psec h3{margin:18px 0 8px;font-size:16px} .pq{margin:10px 0 14px;line-height:1.85} .pstem{white-space:pre-wrap} .pmark{color:#777;font-size:13px;margin-left:4px}
.popts{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:4px 18px;padding-left:22px} .popts span.right{color:#159a5d;font-weight:700}
.pspace{height:72px;border-bottom:1px dashed #cfc7b2;margin-left:22px} .pspace.small{height:10px}
.pans{margin:6px 0 0 22px;padding:8px 12px;background:#f1f8f3;border-left:3px solid #22B573;border-radius:6px;font-size:14px;white-space:pre-wrap}
.psheet .tr{color:#6b7280}
.seg button{white-space:nowrap}
.installcard{background:linear-gradient(135deg,color-mix(in srgb,var(--cyan) 12%,var(--surface)),var(--surface))}
.sgrid td,.sgrid th{text-align:center} .sgrid td:first-child,.sgrid th:first-child{text-align:left} .scell{display:inline-block;padding:4px 12px;border-radius:99px;background:color-mix(in srgb,var(--blue) 10%,var(--surface));color:var(--blue-ink);font-weight:700;text-decoration:none;font-size:13px} .scell:hover{background:var(--blue);color:#fff}
.langbtn{border:1px solid var(--line);background:var(--surface);color:var(--ink-2);font:inherit;font-weight:800;font-size:13px;border-radius:99px;padding:6px 14px;cursor:pointer;margin:0 0 10px 6px;align-self:flex-start} .langbtn:hover{border-color:var(--blue);color:var(--blue-ink)} .langbtn.sm{margin:0;padding:4px 10px;font-size:12px}

/* 拍题讲解 */
.snaphero{display:flex;align-items:center;gap:20px;padding:26px;border-radius:24px;background:var(--grad);color:#fff;position:relative;overflow:hidden;flex-wrap:wrap}
.snaphero h2{margin:0;color:#fff} .snaphero p{margin:0;opacity:.92;line-height:1.75} .snapmascot{width:120px;animation:float 5s ease-in-out infinite}
.btn.big{padding:14px 28px;font-size:17px} .snaphero .btn.primary{background:#fff;color:var(--blue-ink)} .snaphero .btn.ghostw{background:rgba(255,255,255,.12);border:1.5px solid rgba(255,255,255,.55);color:#fff}
.snapgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:12px}
.snapcard{border:1px solid var(--line);border-radius:16px;overflow:hidden;text-decoration:none;color:inherit;background:var(--surface);transition:transform .15s} .snapcard:hover{transform:translateY(-3px)}
.snapcard img{width:100%;height:120px;object-fit:cover;display:block;background:var(--surface-2)}
.snapwrap{display:flex;gap:18px;flex-wrap:wrap;align-items:flex-start} .snapimg{width:min(320px,100%);border-radius:14px;border:1px solid var(--line)}
.snapq{white-space:pre-wrap;line-height:1.8;font-size:15px;padding:12px 14px;background:var(--surface-2);border-radius:12px}
.hint{display:flex;gap:12px;align-items:flex-start;padding:12px 14px;border-radius:14px;background:color-mix(in srgb,var(--blue) 7%,var(--surface));border:1px solid color-mix(in srgb,var(--blue) 25%,var(--line));line-height:1.75;animation:fadein .3s}
.hint .hn{width:26px;height:26px;border-radius:50%;background:var(--grad);color:#fff;display:grid;place-items:center;font-weight:800;flex-shrink:0}
.solution{white-space:pre-wrap;line-height:1.85;padding:14px 16px;border-radius:14px;background:#f1f8f3;border-left:4px solid #22B573;animation:fadein .3s} .solution b{display:block;margin-bottom:4px}
.answerbox{font-size:16px;padding:10px 14px;border-radius:12px;background:var(--surface-2)}
.mistake{padding:10px 14px;border-radius:12px;background:color-mix(in srgb,#F2A33A 10%,var(--surface));line-height:1.7}
.snapcta{background:linear-gradient(135deg,color-mix(in srgb,var(--blue) 8%,var(--surface)),var(--surface))}
@keyframes fadein{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.fab{position:fixed;right:18px;bottom:90px;z-index:40;width:58px;height:58px;border-radius:50%;background:var(--grad);color:#fff;border:none;box-shadow:var(--shadow-lg);display:none;place-items:center;cursor:pointer}
@media (max-width:640px){.fab{display:grid}}

/* ---------- 学习包（10-06） ---------- */
.pk-hero{position:relative;overflow:hidden;display:flex;flex-wrap:wrap;gap:18px;align-items:center;padding:22px 24px;border-radius:var(--r);background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow)}
.pk-hero h2{margin:0;font-size:22px}
.pk-glow{position:absolute;inset:-40% -10% auto auto;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(128,105,237,.22),rgba(107,219,224,.12) 45%,transparent 70%);pointer-events:none;filter:blur(8px)}
.pk-hero.intro{background:var(--grad-soft)}
.pk-mascot{width:120px;position:relative;animation:pkfloat 4s ease-in-out infinite}
@keyframes pkfloat{50%{transform:translateY(-8px) rotate(-2deg)}}
.pk-parts{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px}
.pk-part{display:flex;gap:10px;align-items:flex-start;padding:12px;border-radius:var(--r-s);background:color-mix(in srgb,var(--surface) 80%,transparent);border:1px solid var(--line);backdrop-filter:blur(6px)}
.pk-part .ic{flex:none;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;color:#fff;background:var(--grad)}
.pk-part b{display:block} .pk-part span{font-size:13px;color:var(--ink-2)}
.pk-stats{display:flex;gap:8px;position:relative;flex-wrap:wrap}
.pk-stat{display:flex;flex-direction:column;align-items:center;min-width:64px;padding:10px 12px;border-radius:14px;border:1px solid var(--line);background:var(--surface);cursor:pointer;color:var(--ink);font:inherit;transition:transform .15s,box-shadow .15s}
.pk-stat b{font-family:var(--fd);font-size:22px;line-height:1.1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.pk-stat span{font-size:12px;color:var(--ink-3)}
.pk-stat:hover,.pk-stat.on{transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--violet)}
.pk-player{position:sticky;top:8px;z-index:5;display:flex;gap:12px;align-items:center;padding:10px 14px;border-radius:var(--r-s);background:color-mix(in srgb,var(--surface) 88%,transparent);backdrop-filter:blur(10px);border:1px solid var(--line);box-shadow:var(--shadow)}
.pk-player .ic{flex:none;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;color:#fff;background:var(--grad)}
.pk-player audio{width:100%;height:36px}
.pk-timeline{position:relative;display:flex;flex-direction:column;gap:12px}
.pk-timeline::before{content:"";position:absolute;left:21px;top:10px;bottom:10px;width:2px;background:linear-gradient(var(--blue),var(--violet),var(--cyan));opacity:.35}
.pk-note{position:relative;display:flex;gap:14px;padding:16px 18px 16px 12px;border-radius:var(--r);background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow)}
.pk-dot{flex:none;width:20px;height:20px;margin-top:4px;border-radius:50%;background:var(--grad);color:transparent;font-size:0;box-shadow:0 0 0 4px var(--surface),0 0 0 6px color-mix(in srgb,var(--violet) 30%,transparent)}
.pk-time{display:inline-flex;align-items:center;gap:6px;padding:5px 10px 5px 8px;border-radius:999px;border:none;cursor:pointer;font:600 13px var(--fm);color:#fff;background:var(--grad);box-shadow:0 4px 12px rgba(56,103,246,.25)}
.pk-time svg{width:14px;height:14px}
.pk-time:hover{filter:brightness(1.08)}
.pk-bul{margin:0;padding-left:18px;display:flex;flex-direction:column;gap:4px;line-height:1.65}
.pk-star{padding:8px 12px;border-radius:10px;background:var(--warn-bg);color:var(--warn);font-weight:600;font-size:14px}
.mm-wrap{overflow-x:auto;padding:8px 2px 14px;-webkit-overflow-scrolling:touch}
.mm{display:inline-block;min-width:100%}
.mm-n{display:flex;align-items:center}
.mm-t{flex:none;max-width:220px;padding:7px 12px;border-radius:10px;border:1.5px solid var(--c);background:color-mix(in srgb,var(--c) 9%,var(--surface));color:var(--ink);font-size:14px;line-height:1.35}
.mm-n.d0>.mm-t{font-weight:800;font-size:16px;color:#fff;background:var(--grad);border:none;padding:12px 16px;box-shadow:var(--shadow-lg)}
.mm-n.d1>.mm-t{font-weight:700;background:var(--c);color:#fff;border-color:var(--c)}
.mm-c{display:flex;flex-direction:column;gap:8px;padding-left:28px;position:relative}
.mm-c>.mm-n{position:relative}
.mm-c>.mm-n::before{content:"";position:absolute;left:-14px;top:50%;width:14px;height:1.5px;background:var(--c)}
.mm-c>.mm-n::after{content:"";position:absolute;left:-14px;top:-4px;bottom:-4px;width:1.5px;background:var(--c)}
.mm-c>.mm-n:first-child::after{top:50%}
.mm-c>.mm-n:last-child::after{bottom:50%}
.mm-c>.mm-n:only-child::after{display:none}
.mm-n>.mm-c::before{content:"";position:absolute;left:0;top:50%;width:14px;height:1.5px;background:var(--c)}
.mm-n.d0>.mm-c::before{background:var(--violet)}
.pk-meter{height:8px;border-radius:99px;background:var(--surface-2);overflow:hidden}
.pk-meter i{display:block;height:100%;background:var(--grad);border-radius:99px;transition:width .4s}
.pk-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}
.flip{perspective:1000px;height:200px;cursor:pointer;outline:none}
.flip-in{position:relative;width:100%;height:100%;transition:transform .55s cubic-bezier(.2,.8,.2,1);transform-style:preserve-3d}
.flip.on .flip-in{transform:rotateY(180deg)}
.flip:focus-visible .face{box-shadow:0 0 0 3px var(--blue)}
.face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;border-radius:var(--r);padding:16px;display:flex;flex-direction:column;gap:10px;border:1px solid var(--line);box-shadow:var(--shadow);overflow:auto}
.face.front{background:var(--surface)}
.face.front::after{content:"";position:absolute;right:-30px;bottom:-30px;width:110px;height:110px;border-radius:50%;background:var(--grad);opacity:.12}
.face.back{transform:rotateY(180deg);background:var(--grad-soft)}
.face .kp{font-size:12px;font-weight:700;color:var(--violet);letter-spacing:.02em}
.face .q{font-size:17px;font-weight:700;line-height:1.45;flex:1}
.face .a{font-size:15px;line-height:1.6;flex:1}
.face .fhint{font-size:12px;color:var(--ink-3)}
.pk-qi{flex:none;width:48px;height:48px;border-radius:14px;display:grid;place-items:center;color:#fff;background:var(--grad)}
.pk-qrow{width:100%;border:1px solid var(--line);cursor:pointer;font:inherit;color:inherit;text-align:left}
.pk-qrow:hover{border-color:var(--violet)}
.pk-cta{background:linear-gradient(120deg,rgba(56,103,246,.10),rgba(128,105,237,.10),rgba(107,219,224,.12));border:1px solid color-mix(in srgb,var(--violet) 35%,var(--line))}
@media (max-width:640px){.pk-hero{padding:18px 16px}.pk-mascot{display:none}.pk-stats{width:100%}.pk-stat{flex:1;min-width:0}.flip{height:220px}.pk-note{padding:14px 14px 14px 10px}}
@media (prefers-reduced-motion:reduce){.pk-mascot{animation:none}.flip-in{transition:none}}
.pk-mini{margin-right:8px;padding:1px 7px;border-radius:6px;border:1px solid color-mix(in srgb,var(--blue) 40%,var(--line));background:color-mix(in srgb,var(--blue) 8%,var(--surface));color:var(--blue-ink);font:600 12px var(--fm);cursor:pointer;vertical-align:1px}
.pk-mini:hover{background:var(--blue);color:#fff}

/* ---------- 首页「哇」改版（10-06）：深空极光＋知识星点＋悬浮小伴 ---------- */
.hx-page{position:relative;z-index:1;background:var(--bg)}
.hx{position:relative;min-height:min(100svh,920px);overflow:hidden;isolation:isolate;color:#EEF2FF;background:radial-gradient(120% 90% at 70% 10%,#1B2370 0%,#0E1446 45%,#070B2A 100%);display:flex;flex-direction:column;padding:22px clamp(16px,5vw,72px) 150px}
.hx-aurora{position:absolute;inset:0;z-index:-2;filter:blur(60px) saturate(130%);opacity:.9}
.hx-aurora i{position:absolute;border-radius:50%;mix-blend-mode:screen}
.hx-aurora .a1{width:46vw;height:46vw;left:-8vw;top:-14vw;background:radial-gradient(circle,#3867F6 0%,transparent 65%);animation:hxA 18s ease-in-out infinite}
.hx-aurora .a2{width:40vw;height:40vw;right:-6vw;top:8vh;background:radial-gradient(circle,#8069ED 0%,transparent 65%);animation:hxA 22s ease-in-out -6s infinite reverse}
.hx-aurora .a3{width:38vw;height:38vw;left:30vw;bottom:-18vw;background:radial-gradient(circle,#2BC4CF 0%,transparent 62%);opacity:.75;animation:hxA 26s ease-in-out -12s infinite}
@keyframes hxA{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(6vw,4vh) scale(1.12)}66%{transform:translate(-4vw,6vh) scale(.92)}}
.hx-stars{position:absolute;inset:0;width:100%;height:100%;z-index:-1}
.hx-grid{position:absolute;left:-20%;right:-20%;bottom:-2px;height:42%;z-index:-1;background-image:linear-gradient(rgba(124,155,255,.22) 1px,transparent 1px),linear-gradient(90deg,rgba(124,155,255,.22) 1px,transparent 1px);background-size:56px 56px;transform:perspective(520px) rotateX(62deg);transform-origin:bottom;-webkit-mask-image:linear-gradient(to top,#000 0%,transparent 85%);mask-image:linear-gradient(to top,#000 0%,transparent 85%);animation:hxGrid 6s linear infinite}
@keyframes hxGrid{to{background-position:0 56px}}
.hx-fade{position:absolute;left:0;right:0;bottom:-1px;height:150px;background:linear-gradient(to bottom,transparent,var(--bg));z-index:0;pointer-events:none}
.hx-top{display:flex;align-items:center;justify-content:space-between;gap:12px;position:relative;z-index:2}
.hx-brand{padding:6px 10px 6px 6px;border-radius:16px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);backdrop-filter:blur(12px)}
.hx-brand .brand-text b{color:#fff} .hx-brand .brand-text small{color:rgba(225,232,255,.7)}
.hx-top .langbtn{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.2);color:#E6ECFF;backdrop-filter:blur(10px)}
.hx-main{flex:1;display:grid;grid-template-columns:1.05fr 1fr;align-items:center;gap:clamp(20px,4vw,60px);position:relative;z-index:2;max-width:1280px;width:100%;margin:0 auto;padding-top:clamp(20px,4vh,48px)}
.hx-copy{display:flex;flex-direction:column;gap:20px;animation:hxIn .9s cubic-bezier(.2,.8,.2,1) both}
@keyframes hxIn{from{opacity:0;transform:translateY(22px)}}
.hx-pill{align-self:flex-start;display:inline-flex;align-items:center;gap:9px;padding:7px 14px 7px 10px;border-radius:99px;font-size:13px;font-weight:600;color:#DDE5FF;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(10px)}
.hx-pill i{width:8px;height:8px;border-radius:50%;background:#6BDBE0;box-shadow:0 0 0 0 rgba(107,219,224,.7);animation:hxPing 2.2s infinite}
@keyframes hxPing{70%{box-shadow:0 0 0 10px rgba(107,219,224,0)}100%{box-shadow:0 0 0 0 rgba(107,219,224,0)}}
.hx h1{margin:0;font-family:var(--fd),var(--f);font-weight:900;font-size:clamp(38px,5.6vw,72px);line-height:1.08;letter-spacing:-.01em;color:#fff;text-shadow:0 10px 40px rgba(56,103,246,.35)}
.hx-grad{background:linear-gradient(100deg,#9DB5FF 0%,#C3A8FF 30%,#7DEAF0 60%,#9DB5FF 90%);background-size:220% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:hxShine 7s linear infinite}
@keyframes hxShine{to{background-position:-220% 0}}
.hx-sub{margin:0;max-width:34em;font-size:clamp(15px,1.4vw,18px);line-height:1.75;color:rgba(226,232,255,.82)}
.hx-cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.hx-btn{display:inline-flex;align-items:center;gap:10px;padding:14px 22px;border-radius:16px;font-weight:800;font-size:16px;text-decoration:none;transition:transform .2s,box-shadow .2s,background .2s}
.hx-btn.main{position:relative;color:#fff;background:linear-gradient(120deg,#3867F6,#8069ED 60%,#2BC4CF);box-shadow:0 10px 30px rgba(88,104,246,.55),inset 0 1px 0 rgba(255,255,255,.35);overflow:hidden}
.hx-btn.main::after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,transparent 30%,rgba(255,255,255,.45) 50%,transparent 70%);transform:translateX(-120%);animation:hxSweep 3.6s ease-in-out infinite}
@keyframes hxSweep{60%,100%{transform:translateX(120%)}}
.hx-btn.main:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(88,104,246,.7)}
.hx-btn.glass{color:#fff;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.22);backdrop-filter:blur(12px)}
.hx-btn.glass:hover{background:rgba(255,255,255,.15)}
.hx-btn.text{color:rgba(226,232,255,.85);padding:14px 8px} .hx-btn.text:hover{color:#fff}
.hx-down{align-self:flex-start;border:none;background:none;color:#8FE9EE;font:inherit;font-weight:700;cursor:pointer;padding:0}
.hx-stats{display:grid;grid-template-columns:repeat(4,auto);gap:10px 26px;justify-content:start;margin-top:6px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1)}
.hx-stats b{display:block;font-family:var(--fd);font-size:24px;color:#fff}
.hx-stats span{font-size:12px;color:rgba(214,222,255,.65)}
.hx-stage{position:relative;aspect-ratio:1;width:min(100%,540px);justify-self:center;display:grid;place-items:center;container-type:inline-size}
.hx-ring{position:absolute;border-radius:50%;border:1px solid rgba(150,170,255,.22)}
.hx-ring.r1{inset:6%;border-style:dashed;animation:hxSpin 60s linear infinite}
.hx-ring.r2{inset:20%;border-color:rgba(107,219,224,.28);box-shadow:0 0 60px rgba(107,219,224,.15) inset}
.hx-ring.r3{inset:33%;background:radial-gradient(circle,rgba(128,105,237,.35),transparent 70%);border:none}
@keyframes hxSpin{to{transform:rotate(360deg)}}
.hx-orbit{position:absolute;inset:6%}
.hx-sat{position:absolute;left:50%;top:50%;width:0;height:0}
.hx-chip{position:absolute;transform:translate(-50%,-50%);display:flex;align-items:center;gap:8px;white-space:nowrap;padding:9px 14px 9px 9px;border-radius:14px;font-size:14px;font-weight:700;color:#fff;background:rgba(20,28,80,.55);border:1px solid rgba(255,255,255,.18);backdrop-filter:blur(12px);box-shadow:0 10px 30px rgba(0,0,0,.25);animation:hxFloat 6s ease-in-out infinite}
@keyframes hxFloat{0%,100%{transform:translate(-50%,-50%)}50%{transform:translate(-50%,calc(-50% - 10px))}}
.hx-sat.s1 .hx-chip{animation-delay:-1.5s}.hx-sat.s2 .hx-chip{animation-delay:-3s}.hx-sat.s3 .hx-chip{animation-delay:-4.5s}
.hx-chip .ic{width:28px;height:28px;border-radius:9px;display:grid;place-items:center;background:linear-gradient(135deg,#3867F6,#8069ED)}
.hx-chip .ic svg{width:16px;height:16px}
.hx-sat.s1 .hx-chip .ic{background:linear-gradient(135deg,#8069ED,#C07CF2)} .hx-sat.s2 .hx-chip .ic{background:linear-gradient(135deg,#0FA3B1,#6BDBE0)} .hx-sat.s3 .hx-chip .ic{background:linear-gradient(135deg,#1C8F63,#5BD3A0)}
.hx-bot{position:relative;width:44%;display:grid;place-items:center;animation:hxBob 5s ease-in-out infinite}
.hx-bot img{width:100%;position:relative;z-index:1;filter:drop-shadow(0 20px 40px rgba(56,103,246,.5))}
.hx-halo{position:absolute;inset:-18%;border-radius:50%;background:radial-gradient(circle,rgba(124,155,255,.45),rgba(107,219,224,.15) 45%,transparent 70%);animation:hxPulse 4s ease-in-out infinite}
.hx-shadow{position:absolute;bottom:-14%;width:60%;height:10%;border-radius:50%;background:radial-gradient(rgba(0,0,0,.45),transparent 70%);animation:hxShadow 5s ease-in-out infinite}
@keyframes hxBob{50%{transform:translateY(-14px) rotate(-1.5deg)}}
@keyframes hxPulse{50%{transform:scale(1.08);opacity:.75}}
@keyframes hxShadow{50%{transform:scale(.8);opacity:.6}}
.hx-bubble{position:absolute;left:50%;top:6%;transform:translateX(-10%);max-width:min(78%,330px);padding:12px 16px;border-radius:18px 18px 18px 6px;background:rgba(255,255,255,.92);color:#101E47;font-size:14px;font-weight:600;line-height:1.5;box-shadow:0 16px 40px rgba(0,0,0,.3);z-index:3;min-height:1.5em}
.hx-bubble .caret{display:inline-block;width:2px;height:1em;margin-left:2px;vertical-align:-2px;background:#8069ED;animation:hxBlink 1s steps(1) infinite}
@keyframes hxBlink{50%{opacity:0}}
/* 环绕徽章：用四个固定角度摆放 */
.hx-sat{--R:37cqw}
.hx-sat.s0{transform:rotate(-40deg) translateY(calc(var(--R) * -1)) rotate(40deg)}
.hx-sat.s1{transform:rotate(50deg) translateY(calc(var(--R) * -1)) rotate(-50deg)}
.hx-sat.s2{transform:rotate(140deg) translateY(calc(var(--R) * -1)) rotate(-140deg)}
.hx-sat.s3{transform:rotate(230deg) translateY(calc(var(--R) * -1)) rotate(-230deg)}
/* 会动的功能演示 */
.sc{position:relative;z-index:1;max-width:1200px;margin:12px auto 0;padding:0 clamp(16px,6vw,80px);display:flex;flex-direction:column;gap:18px}
.sc-head h2{margin:4px 0 0;font-size:clamp(22px,3vw,30px)}
.sc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.sc-card{position:relative;display:flex;flex-direction:column;gap:8px;padding:16px 18px 20px;border-radius:22px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s}
.sc-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.sc-card h3{margin:2px 0 0;font-size:18px} .sc-card p{margin:0;color:var(--ink-2);font-size:14px;line-height:1.65}
.sc-tag{align-self:flex-start;font-size:12px;font-weight:800;padding:3px 10px;border-radius:99px;color:#fff;background:var(--grad)}
.sc-card.c2 .sc-tag{background:linear-gradient(120deg,#8069ED,#C07CF2)} .sc-card.c3 .sc-tag{background:linear-gradient(120deg,#0FA3B1,#6BDBE0)}
.sc-demo{position:relative;height:190px;border-radius:16px;overflow:hidden;background:radial-gradient(120% 120% at 80% 0%,#1B2370,#0B1035);margin-bottom:6px;color:#EEF2FF}
.demo-paper{position:absolute;inset:16px 22px;overflow:hidden;border-radius:10px;background:#fff;color:#101E47;padding:12px 14px;box-shadow:0 14px 30px rgba(0,0,0,.35);font-size:11.5px;transform:rotate(-2deg)}
.dp-h{display:flex;flex-direction:column;gap:1px;border-bottom:1px solid #DCE5F5;padding-bottom:6px;margin-bottom:6px} .dp-h span{color:#7C87AB;font-size:10px}
.dp-l{opacity:0;padding:2px 0;animation:dpL 6s ease-out var(--d) infinite} .dp-l.sec{font-weight:700;color:#3867F6}
@keyframes dpL{0%{opacity:0;transform:translateX(-6px)}8%,85%{opacity:1;transform:none}100%{opacity:0}}
.dp-stamp{position:absolute;right:14px;bottom:10px;width:46px;height:46px;border-radius:50%;border:2.5px solid #C23A52;color:#C23A52;font:900 18px var(--fd);display:grid;place-items:center;transform:rotate(-14deg) scale(0);animation:dpS 6s ease-out infinite}
@keyframes dpS{0%,55%{transform:rotate(-14deg) scale(0);opacity:0}62%{transform:rotate(-14deg) scale(1.25);opacity:1}68%,90%{transform:rotate(-14deg) scale(1);opacity:1}100%{opacity:0}}
.demo-snap{position:absolute;inset:14px;display:flex;flex-direction:column;gap:7px}
.ds-photo{position:relative;height:62px;border-radius:10px;background:repeating-linear-gradient(0deg,#FFFDF5 0 15px,#E6ECF8 15px 16px);color:#1d2a6b;display:grid;place-items:center;font:600 20px 'Kaiti SC','STKaiti',serif;overflow:hidden}
.ds-photo .scan{position:absolute;left:0;right:0;height:3px;background:linear-gradient(90deg,transparent,#6BDBE0,transparent);box-shadow:0 0 14px #6BDBE0;animation:dsScan 6s ease-in-out infinite}
@keyframes dsScan{0%{top:0;opacity:1}25%{top:100%;opacity:1}30%,100%{top:100%;opacity:0}}
.ds-hint,.ds-ans{padding:6px 10px;border-radius:9px;font-size:12px;opacity:0;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16)}
.ds-hint.h1{animation:dsH 6s ease-out 1.6s infinite} .ds-hint.h2{animation:dsH 6s ease-out 2.6s infinite}
.ds-ans{font-weight:800;color:#7DEAF0;animation:dsH 6s ease-out 3.6s infinite}
@keyframes dsH{0%{opacity:0;transform:translateY(6px)}6%,60%{opacity:1;transform:none}75%,100%{opacity:0}}
.demo-flip{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;perspective:800px}
.df-in{position:relative;width:70%;height:96px;transform-style:preserve-3d;animation:dfF 6s ease-in-out infinite}
@keyframes dfF{0%,35%{transform:rotateY(0)}50%,85%{transform:rotateY(180deg)}100%{transform:rotateY(360deg)}}
.df{position:absolute;inset:0;border-radius:12px;padding:10px 14px;display:flex;flex-direction:column;justify-content:center;gap:4px;backface-visibility:hidden;-webkit-backface-visibility:hidden;color:#101E47;background:#fff;box-shadow:0 12px 30px rgba(0,0,0,.35)}
.df small{font-size:10px;font-weight:800;color:#8069ED} .df b{font-size:14px}
.df.b{transform:rotateY(180deg);background:linear-gradient(135deg,#EEF3FF,#E9FBFC)}
.df-wave{display:flex;gap:3px;align-items:center;height:26px}
.df-wave i{width:3px;border-radius:2px;background:linear-gradient(#6BDBE0,#8069ED);height:calc(6px + (var(--i) * 7 % 20) * 1px);animation:dfW 1.2s ease-in-out calc(var(--i) * -.09s) infinite alternate}
@keyframes dfW{to{transform:scaleY(.35)}}
.rv{opacity:0;transform:translateY(26px);transition:opacity .8s cubic-bezier(.2,.8,.2,1),transform .8s cubic-bezier(.2,.8,.2,1)}
.rv.in{opacity:1;transform:none}
.sc-grid .rv:nth-child(2){transition-delay:.1s} .sc-grid .rv:nth-child(3){transition-delay:.2s}
.hx-page .landing{padding-top:56px}
@media (max-width:980px){.hx-main{grid-template-columns:1fr}.hx-stage{order:-1;width:min(100%,420px)}.sc-grid{grid-template-columns:1fr 1fr}}
@media (max-width:640px){
  .hx{padding:14px 16px 120px;min-height:auto}
  .hx-stage{width:min(78%,290px);margin:-4px auto -14px}
  .hx-sat{--R:40cqw}
  .hx-chip{font-size:12px;padding:6px 10px 6px 6px;gap:6px}.hx-chip .ic{width:22px;height:22px}.hx-chip .ic svg{width:13px;height:13px}
  .hx-bubble{font-size:12.5px;top:2%;padding:9px 12px;transform:translateX(-14%)}
  .hx h1{font-size:36px}
  .hx-copy{gap:16px}
  .hx-stats{grid-template-columns:1fr 1fr;gap:12px 18px}
  .hx-btn{padding:13px 18px;font-size:15px}.hx-btn.main{flex:1 1 100%;justify-content:center}
  .sc-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  .hx-aurora i,.hx-grid,.hx-grad,.hx-btn.main::after,.hx-ring,.hx-orbit,.hx-chip,.hx-bot,.hx-halo,.hx-shadow,.hx-pill i,.hx-copy,.dp-l,.dp-stamp,.ds-photo .scan,.ds-hint,.ds-ans,.df-in,.df-wave i,.hx-bubble .caret{animation:none!important}
  .dp-l,.ds-hint,.ds-ans{opacity:1}.dp-stamp{transform:rotate(-14deg);opacity:1}
  .rv{opacity:1;transform:none;transition:none}
}
/* 学生首页大卡片：深空版 */
.hero.hero2{isolation:isolate;background:radial-gradient(120% 140% at 80% 0%,#1E2A86 0%,#121A5A 45%,#0A0F38 100%);border:1px solid rgba(150,170,255,.18)}
.hero.hero2::after{display:none}
.hero.hero2 .hx-aurora{filter:blur(40px) saturate(130%);opacity:.85}
.hero.hero2 .hx-aurora .a1{width:360px;height:360px;left:-120px;top:-160px}
.hero.hero2 .hx-aurora .a2{width:320px;height:320px;right:-60px;top:-40px}
.hero.hero2 .hx-aurora .a3{width:300px;height:300px;left:40%;bottom:-200px}
.hero.hero2 .hx-stars{z-index:0}
.hero.hero2 .tag{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2)}
.hero.hero2 h2{text-shadow:0 8px 30px rgba(56,103,246,.45)}
.hero.hero2 .btn.primary{background:linear-gradient(120deg,#fff,#E9EEFF);color:#2A3FB0}
.hero.hero2 .btn.ghostw{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.28);backdrop-filter:blur(8px)}
.hero.hero2 .btn.ghostw:hover{background:rgba(255,255,255,.16)}
.hero-bot{position:relative;z-index:1;justify-self:center;width:210px;aspect-ratio:1;display:grid;place-items:center}
.hero-bot img{width:58%;filter:drop-shadow(0 18px 34px rgba(56,103,246,.55));animation:hxBob 5s ease-in-out infinite}
.hb-ring{position:absolute;inset:4%;border-radius:50%;border:1px dashed rgba(150,170,255,.35);animation:hxSpin 50s linear infinite}
.hb-ring.r2{inset:20%;border:1px solid rgba(107,219,224,.35);background:radial-gradient(circle,rgba(128,105,237,.35),transparent 70%);animation:hxPulse 4s ease-in-out infinite}
@media (max-width:760px){.hero-bot{display:none}}
@media (prefers-reduced-motion:reduce){.hero-bot img,.hb-ring{animation:none!important}}
.boot{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;background:var(--bg);color:var(--ink-2);font-weight:600}
.boot p{margin:0;letter-spacing:.05em}
.boot-orb{position:relative;width:132px;height:132px;display:grid;place-items:center}
.boot-orb i{position:absolute;inset:0;border-radius:50%;border:2px solid transparent;border-top-color:#6BDBE0;border-right-color:#8069ED;animation:hxSpin 1.1s linear infinite;box-shadow:0 0 40px rgba(128,105,237,.35) inset}
.boot-orb img{width:72px;animation:hxBob 2.4s ease-in-out infinite;filter:drop-shadow(0 10px 24px rgba(56,103,246,.6))}
.hero-bot img{width:70%}
@media (prefers-reduced-motion:reduce){.boot-orb i,.boot-orb img{animation:none}}
/* ---------- 知识星图（10-06） ---------- */
.st-hero{position:relative;overflow:hidden;isolation:isolate;display:flex;flex-wrap:wrap;gap:24px;align-items:center;padding:26px 28px;border-radius:24px;color:#EEF2FF;background:radial-gradient(120% 140% at 80% 0%,#1E2A86 0%,#121A5A 45%,#0A0F38 100%);box-shadow:var(--shadow-lg)}
.st-hero .hx-stars{position:absolute;inset:0;width:100%;height:100%;z-index:-1}
.st-hero h2{margin:0;color:#fff;font-size:clamp(20px,2.6vw,28px)}
.st-hero p{margin:0;color:rgba(226,232,255,.8);max-width:46em;line-height:1.7}
.st-ring{--p:0;position:relative;flex:none;width:118px;height:118px;border-radius:50%;display:grid;place-content:center;text-align:center;background:conic-gradient(#5BD3A0 calc(var(--p) * 1%),rgba(255,255,255,.1) 0);box-shadow:0 0 40px rgba(91,211,160,.25)}
.st-ring::before{content:"";position:absolute;inset:9px;border-radius:50%;background:#0F1650}
.st-ring b,.st-ring span{position:relative}
.st-ring b{font:800 28px var(--fd);color:#fff} .st-ring span{font-size:12px;color:rgba(226,232,255,.7)}
.st-legend{display:flex;flex-wrap:wrap;gap:16px;font-size:14px;font-weight:600;color:#E6ECFF}
.st-legend i{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:7px;vertical-align:0}
.st-galaxy{position:relative;padding:18px 20px 8px;border-radius:24px;color:#EEF2FF;background:radial-gradient(100% 120% at 50% 0%,#18205E,#0A0F38 75%);border:1px solid rgba(150,170,255,.18);box-shadow:var(--shadow)}
.st-galaxy h3{margin:0;color:#fff} .st-galaxy .faint{color:rgba(214,222,255,.6)}
.st-galaxy.demo{opacity:.92}
.st-galaxy .demo-tag{position:absolute;right:16px;top:-10px}
.st-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.st-svg{display:block;width:100%;min-width:340px;height:auto;margin:0 auto}
.st-link{stroke:rgba(160,180,255,.32);stroke-width:1.2}
.st-link.far{stroke:rgba(160,180,255,.12);stroke-dasharray:4 6}
.st-core{fill:rgba(200,210,255,.5)}
.st-label{fill:rgba(220,228,255,.75);font-size:calc(14px * var(--k,1));font-weight:700}
.st-name{fill:rgba(220,228,255,.6);font-size:calc(11px * var(--k,1));pointer-events:none}
.st-name.red{fill:#FF9FB0;font-weight:700}
.st-star{cursor:pointer;outline:none}
.st-star .st-glow{opacity:.18;transition:opacity .2s}
.st-star .st-dot{transform-box:fill-box;transform-origin:center;animation:stTw 3.2s ease-in-out var(--d) infinite}
.st-star.s-weak .st-glow{animation:stPulse 1.8s ease-in-out infinite;transform-box:fill-box;transform-origin:center}
.st-star:hover .st-glow,.st-star:focus-visible .st-glow,.st-star.on .st-glow{opacity:.5}
.st-star.on .st-dot{stroke:#fff;stroke-width:2.5}
@keyframes stTw{50%{opacity:.65;transform:scale(.85)}}
@keyframes stPulse{0%,100%{opacity:.12;transform:scale(.7)}50%{opacity:.32;transform:scale(.95)}}
.st-galaxy .st-detail{margin:6px 0 12px;color:var(--ink)}
.st-detail{display:flex;flex-direction:column;gap:12px;padding:18px 20px;border-radius:20px;background:var(--surface);border:1px solid var(--line);border-left:5px solid var(--c);box-shadow:var(--shadow)}
.st-badge{width:16px;height:16px;border-radius:50%;background:var(--c);box-shadow:0 0 14px var(--c)}
.st-tries{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
@media (max-width:640px){.st-hero{padding:20px 16px}.st-ring{width:96px;height:96px}.st-ring b{font-size:22px}.st-galaxy{padding:14px 12px 6px}}
@media (prefers-reduced-motion:reduce){.st-star .st-dot,.st-star.s-weak .st-glow{animation:none}}
.st-galaxy .st-detail h3{color:var(--ink)} .st-galaxy .st-detail .faint{color:var(--ink-3)}
.st-teaser{position:relative;overflow:hidden;display:flex;align-items:center;gap:14px;padding:16px 20px;border-radius:20px;text-decoration:none;color:#EEF2FF;background:radial-gradient(120% 160% at 90% 0%,#1E2A86,#0A0F38 75%);box-shadow:var(--shadow);transition:transform .2s}
.st-teaser:hover{transform:translateY(-2px)}
.st-teaser b{display:block;font-size:16px;color:#fff} .st-teaser span{font-size:13px;color:rgba(226,232,255,.75)}
.st-tdots{position:absolute;right:90px;top:0;bottom:0;width:180px}
.st-tdots i{position:absolute;width:6px;height:6px;border-radius:50%;box-shadow:0 0 8px currentColor;animation:stTw 3s ease-in-out infinite}
.st-tdots i:nth-child(3n){animation-delay:-1s}.st-tdots i:nth-child(3n+1){animation-delay:-2s}
.st-tgo{position:relative;font-weight:800;color:#8FE9EE!important;white-space:nowrap}
@media (max-width:640px){.st-name{font-size:calc(16px * var(--k,1))}.st-label{font-size:calc(18px * var(--k,1))}.st-tdots{right:70px;width:120px}}
/* ---------- 专属复习书（10-06） ---------- */
.bk-intro{display:flex;flex-wrap:wrap;gap:28px;align-items:center;padding:24px 26px;border-radius:24px;background:var(--grad-soft);border:1px solid var(--line)}
.bk-mock{position:relative;width:150px;height:190px;flex:none;margin:0 10px}
.bk-mock>div{position:absolute;inset:0;border-radius:6px 14px 14px 6px}
.bk-mock .p3{transform:translate(14px,10px) rotate(6deg);background:#C9D3F5}
.bk-mock .p2{transform:translate(7px,5px) rotate(3deg);background:#E3E8FB}
.bk-mock .p1{display:flex;flex-direction:column;justify-content:flex-end;gap:2px;padding:14px;color:#fff;overflow:hidden;background:radial-gradient(120% 120% at 80% 0%,#3B4FD8,#121A5A 70%);box-shadow:var(--shadow-lg);animation:bkTilt 6s ease-in-out infinite}
.bk-mock .p1 i{position:absolute;left:0;top:0;bottom:0;width:10px;background:linear-gradient(#6BDBE0,#8069ED)}
.bk-mock .p1 b{font-size:16px} .bk-mock .p1 span{font-size:11px;opacity:.75}
.bk-mock .p1 img{position:absolute;top:18px;right:12px;width:64px}
@keyframes bkTilt{50%{transform:rotate(-2deg) translateY(-4px)}}
.bk-courses{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:12px}
.bk-course{display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:16px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow)}
.bk-course b,.bk-item b{display:block}
.bk-list{display:flex;flex-direction:column;gap:8px}
.bk-item{display:flex;align-items:center;gap:14px;padding:12px 16px;border-radius:14px;background:var(--surface);border:1px solid var(--line);text-decoration:none;color:inherit}
.bk-item:hover{border-color:var(--violet)}
.bk-spine{width:8px;height:40px;border-radius:3px;background:var(--grad)}
.book{display:flex;flex-direction:column;gap:22px;color:#14204A}
.bk-page{background:#fff;color:#14204A;border-radius:10px;box-shadow:var(--shadow);padding:44px 52px;max-width:860px;width:100%;margin:0 auto;line-height:1.75}
.bk-cover{position:relative;overflow:hidden;min-height:1000px;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;gap:14px;color:#fff;background:radial-gradient(120% 90% at 70% 10%,#2A3AC0 0%,#121A5A 50%,#070B2A 100%);-webkit-print-color-adjust:exact;print-color-adjust:exact}
.bk-cv-glow{position:absolute;width:640px;height:640px;border-radius:50%;background:radial-gradient(circle,rgba(128,105,237,.5),rgba(107,219,224,.12) 50%,transparent 70%);top:-160px;right:-200px}
.bk-cv-tag{position:relative;padding:6px 16px;border-radius:99px;border:1px solid rgba(255,255,255,.3);font-size:14px;letter-spacing:.1em}
.bk-cover h1{position:relative;margin:10px 0 0;font-size:44px;line-height:1.2;color:#fff}
.bk-cv-for{position:relative;margin:0;font-size:20px;color:#9FEAF0}
.bk-cv-bot{position:relative;width:200px;margin:30px 0;filter:drop-shadow(0 20px 40px rgba(56,103,246,.6))}
.bk-cv-stats{position:relative;display:flex;gap:34px}
.bk-cv-stats b{display:block;font:800 32px var(--fd)} .bk-cv-stats span{font-size:13px;opacity:.75}
.bk-cv-date{position:relative;margin-top:30px;opacity:.7}
.bk-h{margin:0 0 18px;padding-bottom:10px;font-size:26px;border-bottom:3px solid;border-image:linear-gradient(90deg,#3867F6,#8069ED,#6BDBE0) 1}
.bk-page h3{margin:22px 0 8px;font-size:19px}
.bk-intro-text{font-size:17px;padding:16px 20px;border-radius:12px;background:#F3F6FF;border-left:4px solid #8069ED}
.bk-toc{font-size:17px;font-weight:600;list-style:none;padding-left:4px}
.bk-table{width:100%;border-collapse:collapse;font-size:14px} .bk-table th,.bk-table td{border-bottom:1px solid #E1E7F5;padding:7px 8px;text-align:left}
.bk-kp{break-inside:avoid-page;margin-bottom:26px}
.bk-body{white-space:pre-wrap}
.bk-box{margin:10px 0;padding:12px 16px;border-radius:10px;background:#F4F7FF;white-space:pre-wrap;break-inside:avoid}
.bk-box b{display:block;margin-bottom:4px;color:#3867F6}
.bk-box.ex{background:#EFFAF6} .bk-box.ex b{color:#1C8F63}
.bk-box.pit{background:#FFF5EA} .bk-box.pit b{color:#A8650B}
.bk-vars{margin-top:12px;padding:14px 16px;border:1.5px dashed #B9C6EE;border-radius:12px}
.bk-vars>b{color:#8069ED}
.bk-q,.bk-a{display:flex;gap:10px;margin-top:10px;break-inside:avoid}
.bk-qn{flex:none;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font:800 13px var(--fd);color:#fff;background:linear-gradient(135deg,#3867F6,#8069ED);-webkit-print-color-adjust:exact;print-color-adjust:exact}
.bk-q>div{flex:1;white-space:pre-wrap}
.bk-line{height:26px;border-bottom:1px solid #C9D3EE}
.bk-lesson{margin-bottom:28px}
.bk-map{margin:12px 0;break-inside:avoid}
.bk-map .mm-wrap{overflow:visible}
.bk-notes{display:flex;flex-direction:column;gap:10px}
.bk-note{padding:10px 14px;border-left:3px solid #8069ED;background:#FAFBFF;break-inside:avoid}
.bk-note ul{margin:6px 0 0;padding-left:20px}
.bk-star{margin-top:6px;color:#A8650B;font-weight:600}
.bk-wrong{padding:14px 0;border-bottom:1px dashed #D3DBF0;break-inside:avoid}
.bk-mat{font-size:14px;color:#4A5680;background:#F6F8FD;padding:8px 12px;border-radius:8px;margin:6px 0;white-space:pre-wrap}
.bk-ans{display:flex;flex-wrap:wrap;gap:20px;margin:8px 0;font-size:15px}
.bk-ans s{color:#C23A52}
.bk-foot{text-align:center;font-size:12px;color:var(--ink-3);padding:6px}
@media (max-width:640px){.bk-page{padding:26px 18px}.bk-cover{min-height:640px}.bk-cover h1{font-size:30px}.bk-cv-bot{width:140px}.bk-cv-stats{gap:18px}.bk-cv-stats b{font-size:24px}.bk-mock{display:none}}
@media print{
  @page{size:A4;margin:14mm}
  .fab,.bk-foot{display:none!important}
  .book,.stack:has(>.book){display:block!important}
  .book>.bk-page{display:block;box-shadow:none;border-radius:0;padding:0;max-width:none;margin:0;break-after:page}
  .book>.bk-cover{display:flex;box-sizing:border-box;height:266mm;min-height:0;border-radius:0;padding:18mm;overflow:hidden}
  .main,.app{display:block!important;padding:0!important;margin:0!important}
  .mm-t{box-shadow:none!important;-webkit-print-color-adjust:exact;print-color-adjust:exact}
  .bk-cover,.bk-cover *{-webkit-print-color-adjust:exact;print-color-adjust:exact}
}
/* ---------- 学习成长册（10-06） ---------- */
.gb-book{position:relative;display:flex;align-items:center;gap:12px;outline:none;perspective:1600px}
.gb-stage{flex:1;min-width:0;display:flex;justify-content:center}
.gb-book.fwd .gb-pg{animation:gbFwd .6s cubic-bezier(.2,.8,.2,1)} .gb-book.back .gb-pg{animation:gbBack .6s cubic-bezier(.2,.8,.2,1)}
@keyframes gbFwd{from{transform:rotateY(-70deg) translateX(60px);opacity:0;transform-origin:left}to{transform:none;opacity:1}}
@keyframes gbBack{from{transform:rotateY(70deg) translateX(-60px);opacity:0;transform-origin:right}to{transform:none;opacity:1}}
.gb-pg{position:relative;overflow:hidden;width:100%;max-width:560px;min-height:620px;padding:34px 34px 30px;border-radius:8px 22px 22px 8px;background:var(--surface);border:1px solid var(--line);box-shadow:-6px 0 0 #E3E8FB,-12px 0 0 #CFD8F6,var(--shadow-lg);display:flex;flex-direction:column;gap:14px}
.gb-pg h3{margin:0;font-size:26px}
.gb-k{align-self:flex-start;font-size:12px;font-weight:800;letter-spacing:.08em;padding:4px 12px;border-radius:99px;color:#fff;background:var(--grad)}
.gb-note{margin:0;color:var(--ink-2);line-height:1.7}
.gb-cover,.gb-dark,.gb-end{color:#EEF2FF;background:radial-gradient(120% 90% at 70% 10%,#2A3AC0 0%,#121A5A 50%,#070B2A 100%);border:none}
.gb-cover{align-items:center;justify-content:center;text-align:center}
.gb-glow{position:absolute;width:480px;height:480px;border-radius:50%;top:-140px;right:-160px;background:radial-gradient(circle,rgba(128,105,237,.55),transparent 70%)}
.gb-tag{position:relative;padding:6px 14px;border-radius:99px;border:1px solid rgba(255,255,255,.3);font-size:13px;letter-spacing:.08em}
.gb-cover h2{position:relative;margin:8px 0 0;font:900 46px var(--fd),var(--f);color:#fff}
.gb-cover p{position:relative;margin:0;font-size:19px;color:#9FEAF0}
.gb-cover img{position:relative;width:190px;margin:22px 0;filter:drop-shadow(0 18px 36px rgba(56,103,246,.6));animation:hxBob 5s ease-in-out infinite}
.gb-hint{position:relative;font-size:13px;opacity:.6}
.gb-cal{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;margin:6px 0}
.gb-cal span{aspect-ratio:1;display:grid;place-items:center;font-size:13px;border-radius:10px;color:var(--ink-3)}
.gb-cal .w{aspect-ratio:auto;font-weight:700;color:var(--ink-2)}
.gb-cal .d{background:var(--surface-2)}
.gb-cal .d.on{color:#fff;font-weight:800;background:rgba(56,103,246,var(--a));box-shadow:0 4px 12px rgba(56,103,246,.25)}
.gb-nums{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:8px}
.gb-nums div{padding:16px;border-radius:16px;background:var(--grad-soft);border:1px solid var(--line)}
.gb-nums b{display:block;font:800 38px var(--fd);background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.gb-nums span{font-size:13px;color:var(--ink-2)}
.gb-best{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 12px;padding:14px 16px;border-radius:16px;background:var(--warn-bg)}
.gb-best b{font:800 30px var(--fd);color:var(--warn)} .gb-best small{width:100%;color:var(--ink-2)}
.gb-dark h3{color:#fff}
.gb-sky{display:grid;grid-template-columns:1fr 1fr;gap:14px;flex:1}
.gb-col{display:flex;flex-direction:column;gap:6px;padding:14px;border-radius:16px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14)}
.gb-col b{font:800 30px var(--fd);color:#fff} .gb-col span{font-size:12px;color:rgba(214,222,255,.7)}
.gb-dots{display:flex;flex-wrap:wrap;gap:7px;align-content:flex-start;min-height:150px}
.gb-dots i{width:10px;height:10px;border-radius:50%}
.gb-link{color:#8FE9EE;font-weight:700;text-decoration:none}
.gb-badges{display:flex;flex-wrap:wrap;gap:10px}
.gb-badge{padding:10px 14px;border-radius:14px;font-weight:700;color:#155E47;background:linear-gradient(135deg,#E3F5EC,#D3F2F4);border:1px solid #BFE6D4}
.gb-q{padding:14px 16px;border-radius:14px;background:var(--surface-2);white-space:pre-wrap;line-height:1.7;max-height:250px;overflow:auto}
.gb-qa{display:flex;flex-wrap:wrap;gap:18px} .gb-qa s{color:var(--bad)}
.gb-chat{display:flex;flex-direction:column;gap:8px;padding-bottom:10px;border-bottom:1px dashed var(--line)}
.gb-chat .me{align-self:flex-end;max-width:85%;padding:9px 13px;border-radius:14px 14px 4px 14px;color:#fff;background:var(--grad);font-size:14px}
.gb-chat .bot{display:flex;gap:8px;align-items:flex-start;font-size:13px;color:var(--ink-2)} .gb-chat .bot img{width:28px;flex:none}
.gb-end{align-items:flex-start;justify-content:center}
.gb-end h3{color:#fff;font-size:30px} .gb-end .gb-note{color:rgba(226,232,255,.8)}
.gb-endbot{position:absolute;right:20px;bottom:20px;width:150px;opacity:.9;animation:hxBob 5s ease-in-out infinite}
.gb-nav{flex:none;width:46px;height:46px;border-radius:50%;border:1px solid var(--line);background:var(--surface);font-size:26px;line-height:1;color:var(--ink);cursor:pointer;box-shadow:var(--shadow)}
.gb-nav:disabled{opacity:.3;cursor:default}
.gb-dotsnav{display:flex;justify-content:center;gap:8px}
.gb-dotsnav button{width:9px;height:9px;padding:0;border:none;border-radius:99px;background:var(--line);cursor:pointer;transition:width .2s}
.gb-dotsnav button.on{width:26px;background:var(--grad)}
@media (max-width:640px){.gb-stage{padding-left:12px}.gb-nav{display:none}.gb-pg{min-height:560px;padding:26px 20px}.gb-cover h2{font-size:36px}.gb-nums b{font-size:30px}}
@media (prefers-reduced-motion:reduce){.gb-book .gb-pg{animation:none!important}.gb-cover img,.gb-endbot{animation:none}}
.my-shelf{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.my-tile{position:relative;overflow:hidden;display:flex;flex-direction:column;gap:2px;padding:16px 18px;border-radius:18px;text-decoration:none;color:#EEF2FF;background:radial-gradient(120% 160% at 90% 0%,#1E2A86,#0A0F38 75%);box-shadow:var(--shadow);transition:transform .2s}
.my-tile:hover{transform:translateY(-2px)}
.my-tile .e{font-size:26px} .my-tile b{color:#fff;font-size:16px} .my-tile span:last-child{font-size:12px;color:rgba(226,232,255,.7)}
@media (max-width:640px){.my-shelf{grid-template-columns:1fr}.my-tile{flex-direction:row;align-items:center;gap:12px}.my-tile span:last-child{margin-left:auto}}
.ctable .tablewrap{overflow-x:auto} .ctable table.t{min-width:560px} .ctable table.t td:first-child{min-width:140px}
.hero.hero2{grid-template-columns:minmax(0,1fr) auto;container-type:inline-size}
.hero-bot{width:190px}
@container (max-width:640px){.hero-bot{display:none}}

/* 10-06 Mac 不在线时的访客展示 */
.awaybar{position:sticky;top:0;z-index:60;display:flex;align-items:center;gap:12px;padding:10px 16px;background:var(--warn-bg);color:var(--warn);border-bottom:1px solid color-mix(in srgb,var(--warn) 25%,transparent);font-size:14px}
.awaybar img{width:34px;height:34px;flex:none}
.awaybar div{display:flex;flex-direction:column;gap:2px;flex:1;min-width:0}
.awaybar span{color:var(--ink-2)}
.awaybar .btn{flex:none}
.guesttop{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 24px;border-bottom:1px solid var(--line);background:var(--surface)}
.guestmain{max-width:1100px;margin:0 auto;padding:24px 16px 60px}
@media (max-width:640px){.awaybar{flex-wrap:wrap}.awaybar .btn{margin-left:46px}.guesttop{padding:12px 16px}.guesttop .brand-text small{display:none}}

/* 10-06 闯关：首页闯关地图 */
.qmap{position:relative;overflow:hidden;isolation:isolate;border-radius:24px;padding:22px 24px 20px;color:#E9EEFF;background:linear-gradient(135deg,#0E1640 0%,#1B1650 55%,#0C2A44 100%);box-shadow:0 18px 40px rgba(16,30,71,.22);display:flex;flex-direction:column;gap:18px}
.qm-bg{position:absolute;inset:0;z-index:-1;background:radial-gradient(circle at 12% 0%,rgba(56,103,246,.45),transparent 45%),radial-gradient(circle at 92% 30%,rgba(128,105,237,.4),transparent 45%),radial-gradient(circle at 50% 120%,rgba(43,196,207,.35),transparent 50%)}
.qm-bg::after{content:"";position:absolute;inset:0;background-image:radial-gradient(1px 1px at 20% 30%,#fff8,transparent),radial-gradient(1px 1px at 70% 20%,#fff9,transparent),radial-gradient(1.5px 1.5px at 85% 70%,#fff7,transparent),radial-gradient(1px 1px at 35% 80%,#fff6,transparent),radial-gradient(1px 1px at 55% 50%,#fff5,transparent)}
.qm-head{display:flex;gap:18px;justify-content:space-between;align-items:flex-start;flex-wrap:wrap}
.qm-head h3{margin:4px 0 4px;font-size:21px;color:#fff}
.qm-head p{margin:0;color:#AEB8DC;font-size:14px;max-width:34em}
.qm-lab{font-size:12px;font-weight:800;letter-spacing:.06em;color:#6BDBE0;text-transform:uppercase}
.qm-me{display:flex;align-items:center;gap:12px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:10px 14px}
.qm-lv{display:flex;flex-direction:column;align-items:center;justify-content:center;width:52px;height:52px;border-radius:50%;background:conic-gradient(from 200deg,#6BDBE0,#8069ED,#7C9BFF,#6BDBE0);box-shadow:0 0 18px rgba(128,105,237,.6);color:#fff;line-height:1.05;flex:none}
.qm-lv b{font-size:15px} .qm-lv span{font-size:10px;opacity:.9}
.qm-xp{display:flex;flex-direction:column;gap:6px;min-width:150px}
.qm-bar{height:8px;border-radius:99px;background:rgba(255,255,255,.12);overflow:hidden}
.qm-bar i{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,#6BDBE0,#8069ED);box-shadow:0 0 10px #6BDBE0;transition:width .8s}
.qm-xp small{color:#AEB8DC;font-size:12px}
.qm-tier{font-size:12px;font-weight:800;padding:5px 10px;border-radius:99px;background:linear-gradient(135deg,#F2C35E,#F29E5E);color:#3A2205;white-space:nowrap}
.qm-path{position:relative;display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:6px;padding:6px 0 2px;overflow-x:auto;scrollbar-width:none}
.qm-line{position:absolute;left:calc(100%/14);right:calc(100%/14);top:31px;height:3px;border-radius:3px;background:repeating-linear-gradient(90deg,rgba(255,255,255,.22) 0 8px,transparent 8px 14px)}
.qm-line i{display:block;height:100%;border-radius:3px;background:linear-gradient(90deg,#6BDBE0,#8069ED);box-shadow:0 0 8px #6BDBE0}
.qm-node{position:relative;display:flex;flex-direction:column;align-items:center;gap:6px;background:none;border:0;color:inherit;font:inherit;cursor:pointer;padding:0 2px;text-align:center}
.qm-orb{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;font-size:20px;font-weight:800;background:#1E2757;border:2px solid rgba(255,255,255,.18);color:#7A86AF;transition:transform .2s}
.qm-orb svg{width:22px;height:22px}
.qm-node b{font-size:12.5px;line-height:1.3;color:#E9EEFF;word-break:break-all}
.qm-node small{font-size:11px;color:#7A86AF}
.qm-node:hover .qm-orb{transform:translateY(-3px) scale(1.05)}
.qm-node.won .qm-orb{background:linear-gradient(135deg,#6BDBE0,#8069ED);border-color:transparent;color:#fff;box-shadow:0 0 16px rgba(107,219,224,.5)}
.qm-node.won small{color:#6BDBE0}
.qm-node.now .qm-orb{background:#2A3577;border-color:#7C9BFF;color:#fff;box-shadow:0 0 0 6px rgba(124,155,255,.18),0 0 22px rgba(124,155,255,.6);animation:qmPulse 1.8s ease-in-out infinite}
.qm-node.now small{color:#F2C35E;font-weight:700}
.qm-node.gift .qm-orb{background:linear-gradient(135deg,#F2C35E,#F29E5E);border-color:transparent;box-shadow:0 0 22px rgba(242,195,94,.7);animation:qmBounce 1.1s ease-in-out infinite}
.qm-node.gift small{color:#F2C35E;font-weight:800}
.qm-node.lock{opacity:.6}
.qm-key{position:absolute;top:-4px;right:calc(50% - 34px);font-size:14px;filter:drop-shadow(0 0 4px #F2C35E)}
@keyframes qmPulse{50%{box-shadow:0 0 0 10px rgba(124,155,255,.08),0 0 28px rgba(124,155,255,.8)}}
@keyframes qmBounce{50%{transform:translateY(-5px) rotate(-6deg)}}
.qm-foot{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.qm-hint{font-size:13px;color:#F2C35E}
.qmap.allwon .qm-head{align-items:center}
@media (max-width:720px){.qmap{padding:18px 16px}.qm-path{grid-template-columns:repeat(7,84px);margin:0 -16px;padding:6px 16px 4px}.qm-line{left:58px;right:auto;width:calc(84px*6 + 36px)}.qm-me{width:100%}.qm-xp{flex:1;min-width:0}}

/* 各页顶部当前任务 */
.qribbon{display:flex;align-items:center;gap:12px;padding:10px 14px;margin-bottom:16px;border-radius:14px;background:linear-gradient(90deg,color-mix(in srgb,var(--blue) 12%,var(--surface)),color-mix(in srgb,var(--violet) 10%,var(--surface)));border:1px solid color-mix(in srgb,var(--blue) 25%,transparent);font-size:14px}
.qribbon>span{font-size:20px}
.qribbon div{display:flex;flex-direction:column;gap:2px;flex:1;min-width:0}
.qribbon div span{color:var(--ink-2);font-size:13px}
.qribbon.gift{background:linear-gradient(90deg,color-mix(in srgb,#F2C35E 22%,var(--surface)),color-mix(in srgb,#F29E5E 14%,var(--surface)));border-color:color-mix(in srgb,#F2A05E 40%,transparent)}

/* 刚完成一关的小弹窗 */
.qpop{position:fixed;right:20px;bottom:24px;z-index:90;display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:18px;background:#131C44;color:#E9EEFF;box-shadow:0 18px 40px rgba(0,0,0,.35);border:1px solid #F2C35E66;animation:qpopIn .45s cubic-bezier(.2,1.4,.4,1);max-width:min(420px,calc(100vw - 32px))}
.qpop img{width:40px;height:40px}
.qpop div{display:flex;flex-direction:column;gap:2px;min-width:0}
.qpop div span{color:#F2C35E;font-size:13px}
.qpop-x{background:none;border:0;color:#7A86AF;font-size:20px;cursor:pointer;padding:0 2px}
@keyframes qpopIn{from{transform:translateY(30px) scale(.9);opacity:0}}
@media (max-width:640px){.qpop{left:16px;right:16px;bottom:84px}}

/* 领奖 */
.cb-ov{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:16px;background:rgba(8,12,36,.62);backdrop-filter:blur(6px);animation:cbFade .25s}
.cb-confetti{position:fixed;inset:0;width:100%;height:100%;pointer-events:none}
.cb-card{position:relative;width:min(420px,100%);max-height:calc(100vh - 32px);overflow:auto;display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center;padding:28px 24px 22px;border-radius:28px;color:#E9EEFF;background:radial-gradient(circle at 50% 0%,rgba(128,105,237,.55),transparent 60%),linear-gradient(160deg,#16205A,#0E1640);border:1px solid rgba(255,255,255,.14);box-shadow:0 30px 80px rgba(0,0,0,.5);animation:cbPop .5s cubic-bezier(.2,1.5,.4,1)}
.cb-bot{position:relative;width:96px;height:96px;display:grid;place-items:center}
.cb-bot i{position:absolute;inset:0;border-radius:50%;background:conic-gradient(#6BDBE0,#8069ED,#F2C35E,#6BDBE0);filter:blur(12px);opacity:.75;animation:cbSpin 4s linear infinite}
.cb-bot img{position:relative;width:84px;animation:qmBounce 1.4s ease-in-out infinite}
.cb-lab{font-size:12px;font-weight:800;letter-spacing:.08em;color:#6BDBE0}
.cb-card h2{margin:0;color:#fff;font-size:24px}
.cb-star{display:flex;align-items:baseline;gap:6px;font-size:26px}
.cb-num{font-size:44px;background:linear-gradient(90deg,#F2C35E,#FFE7A3);-webkit-background-clip:text;background-clip:text;color:transparent}
.cb-star span{font-size:15px;color:#F2C35E;font-weight:700}
.cb-gets{display:flex;flex-direction:column;gap:8px;width:100%}
.cb-get{display:flex;align-items:center;gap:12px;text-align:left;padding:10px 12px;border-radius:14px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);animation:cbPop .5s .25s both}
.cb-get>span{font-size:22px}
.cb-get div{display:flex;flex-direction:column}
.cb-get small{color:#AEB8DC}
.cb-get.tier{border-color:#F2C35E88;background:rgba(242,195,94,.12)}
.cb-next{display:flex;flex-direction:column;gap:2px;width:100%;padding:12px;border-radius:14px;border:1px dashed rgba(255,255,255,.25);margin:4px 0 6px}
.cb-next small{color:#6BDBE0;font-weight:700}
.cb-next span{color:#AEB8DC;font-size:13px}
.cb-card .btn.ghost{color:#AEB8DC}
@keyframes cbFade{from{opacity:0}} @keyframes cbPop{from{transform:scale(.7);opacity:0}} @keyframes cbSpin{to{transform:rotate(360deg)}}

/* 「我的」页版本卡 */
.tiercard{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;padding:20px 22px;border-radius:22px;color:#E9EEFF;background:linear-gradient(135deg,#0E1640,#1B1650 60%,#0C2A44)}
.tiercard h3{margin:4px 0;font-size:24px;color:#fff}
.tiercard p{margin:0 0 6px;color:#AEB8DC}
.tc-up{color:#F2C35E;font-weight:700;font-size:14px;text-decoration:none}
.tc-r{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.tc-r small{color:#AEB8DC}
@media (prefers-reduced-motion:reduce){.qm-node.now .qm-orb,.qm-node.gift .qm-orb,.cb-bot img,.cb-bot i,.qpop,.cb-card,.cb-get{animation:none!important}}

/* 10-06 开通引导改版：和首页同一片深空 */
.hx.ob{min-height:100svh;padding-bottom:40px}
.ob-main{flex:1;display:grid;grid-template-columns:minmax(220px,.8fr) minmax(0,1.2fr);gap:clamp(20px,4vw,56px);align-items:center;max-width:1100px;width:100%;margin:0 auto;padding-top:clamp(16px,4vh,40px);position:relative;z-index:2}
.ob-side{display:flex;flex-direction:column;align-items:center;gap:18px}
.ob-bot{position:relative;width:min(240px,60%);display:grid;place-items:center;animation:hxBob 5s ease-in-out infinite}
.ob-bot img{width:100%;position:relative;z-index:1;filter:drop-shadow(0 20px 40px rgba(56,103,246,.5))}
.ob-bubble{position:relative;max-width:340px;padding:14px 18px;border-radius:20px;background:rgba(255,255,255,.94);color:#101E47;font-weight:700;font-size:15px;line-height:1.55;box-shadow:0 16px 40px rgba(0,0,0,.3);animation:cbPop .4s cubic-bezier(.2,1.4,.4,1)}
.ob-bubble::before{content:"";position:absolute;left:50%;top:-8px;width:16px;height:16px;background:inherit;transform:translateX(-50%) rotate(45deg);border-radius:3px}
.ob-card{display:flex;flex-direction:column;gap:18px;padding:26px clamp(18px,3vw,30px);border-radius:26px;background:rgba(19,28,68,.62);border:1px solid rgba(255,255,255,.14);backdrop-filter:blur(18px);box-shadow:0 30px 70px rgba(0,0,0,.35)}
.ob-card h2{margin:0;color:#fff;font-size:26px}
.ob-card p{color:#AEB8DC}
.ob-lab{font-size:12px;font-weight:800;letter-spacing:.08em;color:#6BDBE0}
.ob-stars{display:flex;gap:6px;font-size:18px}
.ob-stars i{font-style:normal;color:rgba(255,255,255,.2);transition:color .3s,text-shadow .3s}
.ob-stars i.on{color:#F2C35E;text-shadow:0 0 10px #F2C35E}
.ob-stars i.now{color:#7C9BFF;text-shadow:0 0 12px #7C9BFF;animation:qmBounce 1.4s ease-in-out infinite;display:inline-block}
.ob-card .field>span{color:#D7DEFA;font-weight:700}
.ob-card .opt{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);color:#E9EEFF;transition:transform .15s,background .2s,box-shadow .2s}
.ob-card .opt:hover{background:rgba(255,255,255,.14);transform:translateY(-1px)}
.ob-card .opt[aria-pressed=true]{background:linear-gradient(120deg,#3867F6,#8069ED);border-color:transparent;color:#fff;box-shadow:0 6px 20px rgba(88,104,246,.5)}
.ob-card .input{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);color:#fff}
.ob-card .input::placeholder{color:rgba(225,232,255,.45)}
.ob-card .input:focus{border-color:#7C9BFF;box-shadow:0 0 0 3px rgba(124,155,255,.3)}
.ob-card .faint{color:#8D98C2}
.ob-nav{margin-top:4px}
.ob-nav .hx-btn{font-size:15px;padding:12px 20px;border:0;cursor:pointer;font-family:inherit}
.ob-skip{align-self:center;background:none;border:0;color:#AEB8DC;font:inherit;font-size:14px;cursor:pointer;text-decoration:underline;text-underline-offset:3px}
.ob-skip:hover{color:#fff}
.ob-foot{margin:0;text-align:center;color:#AEB8DC;font-size:14px} .ob-foot a{color:#6BDBE0}
.ob-quest{display:flex;flex-direction:column;gap:10px;padding:14px;border-radius:18px;border:1px dashed rgba(242,195,94,.55);background:rgba(242,195,94,.08)}
.ob-quest b{color:#FFE7A3}
.ob-quest small{color:#AEB8DC;line-height:1.5}
.ob-qrow{display:flex;flex-wrap:wrap;gap:8px}
.ob-qrow span{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:#C9D2F5;padding:4px 10px 4px 4px;border-radius:99px;background:rgba(255,255,255,.06)}
.ob-qrow i{font-style:normal;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;font-size:11px;font-weight:800;background:#2A3577;color:#AEB8DC}
.ob-qrow span.on i{background:linear-gradient(135deg,#6BDBE0,#8069ED);color:#fff}
@media (max-width:820px){.ob-main{grid-template-columns:1fr;gap:14px}.ob-side{flex-direction:row;gap:12px;align-items:flex-start}.ob-bot{width:76px;flex:none}.ob-bubble{font-size:14px;padding:10px 14px}.ob-bubble::before{left:-6px;top:22px}.ob-card{padding:20px 16px}.ob-card h2{font-size:21px}}
.ob-nav{flex-wrap:nowrap;align-items:center}
.ob-nav .hx-btn{flex:none;width:auto}
.ob-nav .hx-btn.text{background:none;box-shadow:none;padding:12px 6px}
.bk-empty{display:flex;align-items:flex-start;gap:16px;flex-wrap:wrap;padding:18px 20px;border-radius:20px;background:var(--grad-soft);border:1px solid var(--line)}
.bk-empty>img{width:64px;flex:none}