:root{--green:#4C9338;--green-glow:#6FBF54;--ink:#141412;--ink-soft:#6B6E66;--ink-faint:#9A9D94;--paper:#FCFCFB;--line:#EAEAE4;--maxw:clamp(1080px, 82vw, 1560px);--pad:clamp(22px, 5vw, 72px);font-family:Inter,Noto Sans SC,-apple-system,BlinkMacSystemFont,PingFang SC,sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--paper);color:var(--ink);-webkit-font-smoothing:antialiased;overflow-x:hidden;position:relative;height:auto}::selection{background:#4c933822}.ambient{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}.ambient .grid{position:absolute;inset:-2px;background-image:linear-gradient(rgba(20,20,18,.022) 1px,transparent 1px),linear-gradient(90deg,rgba(20,20,18,.022) 1px,transparent 1px);background-size:64px 64px;mask-image:radial-gradient(ellipse 90% 80% at 50% 30%,#000 40%,transparent 100%);-webkit-mask-image:radial-gradient(ellipse 90% 80% at 50% 30%,#000 40%,transparent 100%)}.glow{position:absolute;border-radius:50%;filter:blur(90px);opacity:.5}.glow.g1{width:620px;height:620px;background:radial-gradient(circle,#8FD37333,transparent 70%);top:-120px;right:-80px}.glow.g2{width:520px;height:520px;background:radial-gradient(circle,#B7E3A522,transparent 70%);top:60vh;left:-140px}.ambient .noise{position:absolute;inset:0;opacity:.028;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}.page-surface{position:relative;z-index:2;transition:none}.nav,section,.foot{position:relative}.nav{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;justify-content:space-between;padding:20px var(--pad);background:#fcfcfb99;backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);transition:padding .3s ease,background .3s ease}.nav.shrink{padding:12px var(--pad);background:#fcfcfbd9}.brand{display:flex;align-items:center;gap:9px;font-weight:700;font-size:15px;letter-spacing:-.01em;text-decoration:none;color:var(--ink)}.brand svg{width:22px;height:22px}.brand .g{color:var(--green)}.nav-right{font-size:13.5px;color:var(--ink-soft);display:flex;gap:26px;align-items:center}.nav-right a{color:inherit;text-decoration:none}.nav-right .live{display:inline-flex;align-items:center;gap:6px}.nav-right .live:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 0 3px #4c933822}.wrap{max-width:var(--maxw);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}.hero{min-height:100vh;display:flex;flex-direction:column;justify-content:center}.kicker{font-size:clamp(13px,1vw,15px);font-weight:600;letter-spacing:.02em;color:var(--ink-faint);margin-bottom:clamp(24px,3vw,40px);display:flex;align-items:center;gap:10px}.kicker:before{content:"";width:28px;height:1.5px;background:var(--ink-faint)}h1{font-size:clamp(40px,6.4vw,104px);line-height:1.04;letter-spacing:-.045em;font-weight:800}h1 .line{display:block;overflow:hidden}h1 .line>span{display:block}h1 .light{font-weight:300;color:var(--ink-soft)}h1 .g{color:var(--green)}.sub{margin-top:clamp(28px,3vw,40px);font-size:clamp(16px,1.5vw,22px);line-height:1.6;color:var(--ink-soft);max-width:36em}.cta-row{margin-top:clamp(38px,4vw,56px);display:flex;align-items:center;gap:24px;flex-wrap:wrap}.cta{font-size:clamp(15px,1.1vw,17px);font-weight:600;color:var(--paper);background:var(--ink);padding:16px 28px;border-radius:12px;border:none;cursor:pointer;transition:transform .2s cubic-bezier(.4,0,.2,1),background .2s;box-shadow:0 10px 30px -12px #14141280}.cta:hover{transform:translateY(-2px);background:#000}.cta .arr{color:var(--green);display:inline-block}.cta-note{font-size:14px;color:var(--ink-faint)}.shint{position:absolute;bottom:34px;left:50%;transform:translate(-50%);display:flex;flex-direction:column;align-items:center;gap:10px;opacity:1}.shint .track{position:relative;width:1px;height:44px;background:linear-gradient(180deg,transparent,var(--line) 30%,var(--line))}.shint .track:after{content:"";position:absolute;top:0;left:50%;transform:translate(-50%);width:5px;height:5px;border-radius:50%;background:var(--green);box-shadow:0 0 8px 1px #4c933855;animation:sink 2.4s cubic-bezier(.4,0,.6,1) infinite}.shint .lbl{font-size:11px;letter-spacing:.16em;color:var(--ink-faint);text-transform:uppercase;font-weight:500}@keyframes sink{0%{top:0;opacity:0}15%{opacity:1}80%{opacity:1}to{top:44px;opacity:0}}.pain{min-height:100vh;display:flex;flex-direction:column;justify-content:center}.lead{font-size:clamp(19px,2.4vw,32px);color:var(--ink-soft);line-height:1.5;max-width:22em}.big{font-size:clamp(96px,22vw,300px);font-weight:900;letter-spacing:-.05em;line-height:.9;margin:.15em 0 .05em}.big .u{font-size:.4em;color:var(--ink-faint);font-weight:700;vertical-align:super}.cap{font-size:clamp(17px,2vw,28px);color:var(--ink);font-weight:500;max-width:24em;line-height:1.5}.cap .g{color:var(--green)}.reveal{opacity:0;transform:translateY(24px)}.threshold{min-height:92vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:20px;background:linear-gradient(180deg,transparent,#F1F2ED)}.t1{font-size:clamp(23px,3vw,44px);font-weight:700;letter-spacing:-.02em}.t2{font-size:clamp(14px,1.2vw,17px);color:var(--ink-soft)}.preview{margin-top:clamp(28px,4vw,48px);width:min(720px,88vw);height:clamp(96px,12vw,128px);border:1px solid var(--line);border-radius:16px 16px 0 0;background:#fff;box-shadow:0 -2px 60px -12px #4c93382e;display:flex;align-items:center;padding:0 24px;gap:12px;transform:translateY(40px);opacity:0}.preview .cursor{width:2px;height:22px;background:var(--green);animation:blink 1.1s step-end infinite}.preview .ph{color:var(--ink-faint);font-size:clamp(14px,1.2vw,16px)}.foot{padding:60px var(--pad);color:var(--ink-faint);font-size:13px;text-align:center;border-top:1px solid var(--line)}.foot b{color:var(--ink)}@media (max-width:1024px){:root{--maxw:100%}}@media (max-width:640px){.nav-right a:not(.live){display:none}.sub{max-width:100%}.cta-row{gap:16px}}.product-surface{position:fixed;inset:0;z-index:100;opacity:0;pointer-events:none;overflow:hidden;background:#f5f6f2}.product-surface .ps-inner{position:absolute;inset:0;transform:translateY(100%)}:root{--green:#4C9338;--green-soft:#EAF3E6;--green-hover:#3F7C2F;--warn:#D98A0B;--warn-soft:#FBF0DD;--violet:#8B5FBF;--violet-soft:#F3EAFB;--violet-hover:#7A4FB0;--blue:#3A6FAE;--blue-soft:#E7EFFB;--ink:#141412;--ink-soft:#5B5E56;--ink-faint:#9A9D94;--paper:#FCFCFB;--surface:#FFFFFF;--surface-2:#F5F6F2;--line:#E9E9E3;--r:14px;--shadow:0 1px 3px rgba(20,20,18,.05),0 12px 32px -12px rgba(20,20,18,.1);--shadow-lg:0 4px 12px rgba(20,20,18,.06),0 24px 48px -16px rgba(20,20,18,.16);--ease:cubic-bezier(.4,0,.2,1)}.topbar{height:56px;background:var(--surface);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 20px;z-index:10}.tb-logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:15px}.tb-logo svg{width:20px;height:20px}.tb-logo .g{color:var(--green)}.langs{display:flex;gap:4px;background:var(--surface-2);border-radius:10px;padding:3px}.lang{padding:5px 11px;border-radius:8px;font-size:13px;cursor:pointer;border:none;background:transparent;transition:all .15s}.lang.on{background:var(--surface);box-shadow:0 1px 3px #00000014;font-weight:600}.tb-back{font-size:13px;color:var(--ink-soft);text-decoration:none;cursor:pointer}.layout{display:flex;height:calc(100vh - 56px)}.side{width:230px;background:var(--surface);border-right:1px solid var(--line);padding:16px;display:flex;flex-direction:column;gap:6px;flex-shrink:0}.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;font-size:14px;font-weight:500;cursor:pointer;color:var(--ink-soft);transition:all .15s}.nav-item.on{background:var(--green-soft);color:var(--green);font-weight:600}.nav-item:not(.on):hover{background:var(--surface-2)}.side hr{border:none;border-top:1px solid var(--line);margin:12px 0}.overview{font-size:12.5px;color:var(--ink-soft)}.overview .ov{display:flex;justify-content:space-between;padding:6px 0}.overview .ov b{color:var(--ink)}.side .promo{margin-top:auto;font-size:12px;color:var(--green);background:var(--green-soft);border-radius:10px;padding:10px;cursor:pointer;text-align:center;transition:all .15s}.side .promo:hover{background:#dfeed9}.work{flex:1;overflow:auto;position:relative}.view{display:none;padding:26px 30px;min-height:100%}.view.on{display:block}.view.tree-view{padding:0}.center-wrap{max-width:720px;margin:0 auto}.mode-tabs{display:flex;gap:4px;background:var(--surface-2);border-radius:10px;padding:3px;width:fit-content;margin-bottom:14px}.mode-tab{padding:7px 16px;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;color:var(--ink-soft);transition:all .15s}.mode-tab.on{background:var(--surface);box-shadow:0 1px 3px #00000014;color:var(--ink)}.editor{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:20px}.field{display:flex;align-items:flex-start;gap:8px;min-height:34px;font-size:16px}.field textarea{border:none;outline:none;font:inherit;color:var(--ink);flex:1;background:transparent;resize:none;line-height:1.6;overflow:hidden}.field textarea::placeholder{color:var(--ink-faint)}.field input{border:none;outline:none;font:inherit;color:var(--ink);flex:1;background:transparent}.field input::placeholder{color:var(--ink-faint)}.tools{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap}.tool{font-size:13px;color:var(--ink-soft);background:var(--surface-2);border:1px solid var(--line);border-radius:9px;padding:8px 12px;cursor:pointer;transition:all .15s;display:inline-flex;gap:6px;align-items:center}.tool:hover{border-color:#d5d5cd}.tool.ocr{color:var(--green);background:var(--green-soft);border-color:transparent}.tool.submit{margin-left:auto;color:#fff;background:var(--ink);border-color:var(--ink)}.tool.submit:hover{background:#000}.examples{margin-top:14px;display:flex;gap:8px;flex-wrap:wrap}.ex{font-size:12px;color:var(--ink-soft);background:transparent;border:1px dashed var(--line);border-radius:999px;padding:6px 12px;cursor:pointer;transition:all .15s}.ex:hover{border-color:var(--green);color:var(--green)}.ex.sent{border-style:solid;background:var(--surface-2)}.hint-txt{font-size:12px;color:var(--ink-faint);margin-top:10px}.selband{margin-top:12px;background:var(--green-soft);border:1px solid transparent;border-radius:12px;padding:12px 14px;font-size:13px;color:var(--green-hover);display:none;align-items:center;gap:10px;animation:pop .3s var(--ease)}.selband.show{display:flex}.selband b{background:var(--green);color:#fff;padding:2px 8px;border-radius:6px;font-weight:600}@keyframes pop{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}.search-res{margin-top:14px}.sr-item{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin-bottom:10px;display:flex;align-items:center;justify-content:space-between;box-shadow:var(--shadow);transition:all .15s}.sr-item:hover{border-color:#d5d5cd}.sr-item .l{font-size:15px;font-weight:600;display:flex;align-items:center;gap:8px;flex-wrap:wrap}.sr-item .m{font-size:12px;color:var(--ink-soft);margin-top:3px}.sys-chip{font-size:10.5px;font-weight:700;padding:2px 7px;border-radius:5px}.sys-chip.grammar{background:var(--blue-soft);color:var(--blue)}.sys-chip.vocab{background:var(--violet-soft);color:var(--violet-hover)}.st{font-size:11px;padding:3px 8px;border-radius:6px}.st.unlocked{background:var(--green-soft);color:var(--green)}.st.locked{background:var(--surface-2);color:var(--ink-faint)}.st.near{background:var(--warn-soft);color:var(--warn)}.result-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:20px;margin-top:16px;animation:pop .3s var(--ease)}.rc-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}.rc-word{font-size:20px;font-weight:700}.rc-gloss{color:var(--ink-soft);font-size:14px}.tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.tag{font-size:12px;color:var(--ink-soft);background:var(--surface-2);border:1px solid var(--line);padding:5px 11px;border-radius:8px}.tag.green{color:var(--green);background:var(--green-soft);border-color:transparent;font-weight:600}.tag.blue{color:var(--blue);background:var(--blue-soft);border-color:transparent;font-weight:600}.tag.violet{color:var(--violet-hover);background:var(--violet-soft);border-color:transparent;font-weight:600}.rc-actions{margin-top:16px;display:flex;gap:10px;flex-wrap:wrap}.btn{font-size:13px;font-weight:600;padding:10px 16px;border-radius:10px;cursor:pointer;border:1px solid var(--line);background:var(--surface);transition:all .15s}.btn.primary{background:var(--green);color:#fff;border-color:var(--green)}.btn.primary:hover{background:var(--green-hover)}.btn:not(.primary):hover{border-color:#d5d5cd}.ai-note{margin-top:14px;font-size:12.5px;color:var(--ink-soft);background:var(--surface-2);border-radius:10px;padding:10px 12px;display:flex;gap:8px}.ai-note .dot{color:var(--green);font-weight:700;white-space:nowrap}.hit-node{border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin-top:12px}.hit-node+.hit-node{margin-top:10px}.hit-node .rc-head{align-items:baseline}.hit-node .rc-word{font-size:17px}.hit-why{margin-top:10px;font-size:13px;color:var(--green)}.hit-node .rc-actions{margin-top:12px}.longbox{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:20px;margin-top:16px;animation:pop .3s var(--ease)}.longbox .q{font-size:13px;color:var(--ink-soft);margin-bottom:12px}.long-sent{font-size:18px;line-height:1.75;margin-bottom:16px}.long-sent .cand{border-bottom:2px dashed var(--line);cursor:pointer;padding:1px 2px;transition:all .15s}.long-sent .cand:hover{background:var(--green-soft)}.long-sent .cand.sel{background:var(--green);color:#fff;border-radius:4px;border-bottom:none}.cand-list{display:flex;flex-direction:column;gap:8px}.cand-opt{display:flex;align-items:center;justify-content:space-between;border:1px solid var(--line);border-radius:10px;padding:11px 14px;cursor:pointer;transition:all .15s;gap:10px}.cand-opt:hover{border-color:var(--green)}.cand-opt.sel{border-color:var(--green);background:var(--green-soft)}.cand-opt .cl{font-size:14px;font-weight:600}.cand-opt .ct{font-size:11px;color:var(--ink-soft);margin-top:1px}.confirm-row{margin-top:16px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}.confirm-row .note{font-size:12px;color:var(--ink-faint);flex:1;min-width:180px}.tree-head{position:absolute;top:0;left:0;right:0;display:flex;justify-content:space-between;align-items:flex-start;padding:16px 24px;z-index:5;pointer-events:none}.tree-head .hl{display:flex;flex-direction:column;gap:8px;align-items:flex-start}.sys-switch{display:flex;gap:3px;background:#ffffffe6;backdrop-filter:blur(8px);border-radius:10px;padding:3px;pointer-events:auto;box-shadow:0 2px 8px #0000000f}.sys-btn{padding:6px 14px;border-radius:8px;font-size:12.5px;font-weight:600;cursor:pointer;color:var(--ink-soft);border:none;background:transparent;transition:all .15s}.sys-btn.on.grammar{background:var(--blue-soft);color:var(--blue)}.sys-btn.on.vocab{background:var(--violet-soft);color:var(--violet-hover)}.tree-head .ttl{font-size:12.5px;background:#ffffffd9;backdrop-filter:blur(8px);padding:6px 12px;border-radius:8px;pointer-events:auto;color:var(--ink-soft)}.tree-head .ttl b{color:var(--ink)}.tree-head .prog{font-size:13px;background:#ffffffd9;backdrop-filter:blur(8px);padding:6px 12px;border-radius:8px;pointer-events:auto;font-weight:600}.canvas{position:absolute;inset:0;overflow:hidden;cursor:grab;background:radial-gradient(circle at 50% 45%,#fff,var(--surface-2))}.canvas:active{cursor:grabbing}.tree{position:absolute;top:50%;left:50%;transition:transform .8s var(--ease)}.tnode{position:absolute;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;gap:4px;cursor:pointer}.tdot{width:var(--sz,56px);height:var(--sz,56px);border-radius:50%;display:grid;place-items:center;font-size:11px;text-align:center;padding:5px;line-height:1.15;transition:all .3s var(--ease);position:relative}.tlabel{font-size:11px;color:var(--ink-soft);white-space:nowrap}.tnode.locked{opacity:.32;filter:blur(1.3px)}.tnode.locked .tdot{background:var(--surface-2);border:1px dashed var(--line);color:var(--ink-faint)}.tnode.near .tdot{background:var(--surface);border:1px solid var(--line);color:var(--ink);box-shadow:0 4px 14px -6px #1414122e}.tnode.unlocked .tdot{background:var(--green-soft);border:1.5px solid var(--green);color:var(--green-hover);font-weight:600}.tnode.current .tdot{background:var(--green);color:#fff;font-weight:700;--sz:76px;box-shadow:0 8px 26px -8px #4c93388c}.tree.vocab .tnode.unlocked .tdot{background:var(--violet-soft);border-color:var(--violet);color:var(--violet-hover)}.tree.vocab .tnode.current .tdot{background:var(--violet);box-shadow:0 8px 26px -8px #8b5fbf8c}.tree.vocab .tedge.active{background:linear-gradient(90deg,var(--violet),var(--line))}.tnode.ghost .tdot{background:#fff;border:1.5px dashed var(--ink-faint);color:var(--ink-soft);font-weight:500}.tnode.ghost .tlabel{color:var(--ink-faint)}.errbadge{position:absolute;top:-4px;right:-4px;min-width:20px;height:20px;border-radius:10px;background:var(--warn);color:#fff;font-size:11px;font-weight:700;display:grid;place-items:center;padding:0 5px;border:2px solid #fff}.newbadge{position:absolute;top:-6px;left:-6px;min-width:18px;height:18px;border-radius:9px;background:var(--green);color:#fff;font-size:10px;font-weight:700;display:grid;place-items:center;padding:0 4px;border:2px solid #fff}.tnode.isnew .tdot{animation:newpulse 1.6s var(--ease) 2}@keyframes newpulse{0%,to{box-shadow:0 0 #4c933800}50%{box-shadow:0 0 0 8px #4c93382e}}.tedge{position:absolute;top:50%;left:50%;height:1.5px;transform-origin:left center;background:var(--line)}.tedge.active{background:linear-gradient(90deg,var(--green),var(--line))}.tedge.locked{opacity:.2}.tedge.link{background:none;border-top:1.5px dotted var(--ink-faint);opacity:.5;height:0}.drawer{position:absolute;top:0;right:0;bottom:0;width:410px;background:var(--surface);border-left:1px solid var(--line);box-shadow:-8px 0 32px -12px #00000026;transform:translate(100%);transition:transform .4s var(--ease);z-index:8;display:flex;flex-direction:column}.drawer.show{transform:none}.dr-head{padding:20px;border-bottom:1px solid var(--line)}.dr-close{float:right;cursor:pointer;color:var(--ink-faint);font-size:18px}.dr-syschip{font-size:10.5px;font-weight:700;padding:2px 8px;border-radius:5px;display:inline-block;margin-bottom:8px}.dr-syschip.grammar{background:var(--blue-soft);color:var(--blue)}.dr-syschip.vocab{background:var(--violet-soft);color:var(--violet-hover)}.dr-title{font-size:20px;font-weight:700}.dr-meta{font-size:13px;color:var(--ink-soft);margin-top:4px}.dr-review{display:inline-flex;align-items:center;gap:6px;margin-top:12px;font-size:12px;font-weight:600;padding:6px 12px;border-radius:8px}.dr-review.强化{background:var(--warn-soft);color:var(--warn)}.dr-review.普通{background:var(--green-soft);color:var(--green)}.dr-body{padding:20px;overflow:auto;flex:1}.dr-body h5{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-faint);margin:0 0 12px}.dr-body h5:not(:first-child){margin-top:20px}.record{border:1px solid var(--line);border-radius:12px;padding:14px;margin-bottom:10px}.rec-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.rec-form{font-size:11px;font-weight:700;padding:3px 8px;border-radius:6px;background:var(--surface-2)}.rec-form.语法{background:var(--blue-soft);color:var(--blue)}.rec-form.单词{background:var(--green-soft);color:var(--green)}.rec-form.短语{background:var(--violet-soft);color:var(--violet-hover)}.rec-form.句子,.rec-form.病句{background:var(--warn-soft);color:var(--warn)}.rec-date{font-size:11px;color:var(--ink-faint)}.rec-mat{font-size:15px;margin-bottom:4px}.rec-mat mark{background:#4c93381f;color:var(--green-hover);padding:0 3px;border-radius:3px;font-weight:600}.rec-note{font-size:12px;color:var(--ink-soft)}.linkcard{display:flex;align-items:center;justify-content:space-between;border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin-bottom:10px;cursor:pointer;transition:all .15s}.linkcard:hover{border-color:var(--green);background:var(--green-soft)}.linkcard .ll{font-size:14px;font-weight:600;display:flex;align-items:center;gap:8px}.linkcard .lg{font-size:11.5px;color:var(--ink-soft);margin-top:2px}.linkcard .jump{font-size:12px;color:var(--green);font-weight:600;white-space:nowrap}.dr-empty{color:var(--ink-faint);font-size:13px;text-align:center;padding:18px;border:1px dashed var(--line);border-radius:12px}.dr-foot{padding:16px 20px;border-top:1px solid var(--line);display:flex;gap:8px}.rev-wrap{max-width:560px;margin:0 auto;text-align:center}.rev-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.rev-head .t{font-size:18px;font-weight:700}.rev-head .bell{font-size:13px;color:var(--green);background:var(--green-soft);border:none;border-radius:10px;padding:9px 14px;cursor:pointer}.rev-lvl{font-size:12px;margin-bottom:20px;text-align:left}.rev-lvl b{color:var(--warn)}.rcard{perspective:1200px;height:220px;margin-bottom:16px}.rcard .inner{position:relative;width:100%;height:100%;transition:transform .5s var(--ease);transform-style:preserve-3d;cursor:pointer}.rcard.flip .inner{transform:rotateY(180deg)}.rcard .face{position:absolute;inset:0;backface-visibility:hidden;border:1px solid var(--line);border-radius:16px;padding:26px;display:flex;align-items:center;justify-content:center;background:var(--surface);box-shadow:var(--shadow);font-size:17px;text-align:center}.rcard .back{transform:rotateY(180deg);background:var(--green-soft)}.rcard .badge{position:absolute;top:12px;left:12px;font-size:10px;font-weight:700;background:var(--warn-soft);color:var(--warn);padding:3px 8px;border-radius:6px}.rev-acts{display:flex;gap:12px;justify-content:center}.rev-acts .btn{min-width:120px}.progdots{display:flex;gap:8px;justify-content:center;margin:16px 0}.progdots i{width:8px;height:8px;border-radius:50%;background:var(--line)}.progdots i.on{background:var(--green)}.rev-src{margin-top:20px;font-size:13px;color:var(--ink-soft)}.rev-src a{color:var(--green);cursor:pointer}.modal{position:fixed;inset:0;background:#14141259;display:none;place-items:center;z-index:50}.modal.show{display:grid}.modal .box{background:var(--surface);border-radius:18px;padding:26px;width:340px}.modal h4{font-size:17px;margin-bottom:6px}.modal p{font-size:13px;color:var(--ink-soft);margin-bottom:18px}.modal .times{display:flex;gap:8px;margin-bottom:18px}.modal .times span{flex:1;text-align:center;padding:10px;border:1px solid var(--line);border-radius:10px;font-size:13px;cursor:pointer}.modal .times span.on{border-color:var(--green);background:var(--green-soft);color:var(--green);font-weight:600}.modal .close{width:100%;padding:12px;background:var(--green);color:#fff;border:none;border-radius:10px;font-weight:600;cursor:pointer}.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%) translateY(20px);background:var(--ink);color:#fff;font-size:13px;padding:12px 18px;border-radius:12px;box-shadow:var(--shadow-lg);opacity:0;pointer-events:none;transition:all .3s var(--ease);z-index:60;max-width:420px}.toast.show{opacity:1;transform:translate(-50%) translateY(0)}.toast b{color:#9fe084}.trailer-modal{position:fixed;inset:0;z-index:90;background:#141412b8;display:none;place-items:center;padding:34px}.trailer-modal.show{display:grid}.trailer-player{width:min(1120px,92vw);background:#111;border-radius:18px;box-shadow:0 30px 90px -28px #000000b8;overflow:hidden;position:relative}.trailer-player video{display:block;width:100%;aspect-ratio:16/9;background:#000}.trailer-close{position:absolute;right:14px;top:14px;width:34px;height:34px;border:none;border-radius:50%;background:#ffffffeb;color:var(--ink);font-size:18px;cursor:pointer;z-index:2}.trailer-progress{height:4px;background:#ffffff2e}.trailer-progress i{display:block;height:100%;width:0;background:var(--green)}.ocr-examples{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}.ocr-ex{border:1px solid var(--line);border-radius:12px;padding:12px;cursor:pointer;transition:all .15s;text-align:center}.ocr-ex:hover{border-color:var(--green);background:var(--green-soft)}.ocr-ex .thumb{width:100%;height:70px;background:linear-gradient(135deg,var(--surface-2),#e8e9e3);border-radius:8px;margin-bottom:8px;display:grid;place-items:center;font-size:28px}.ocr-ex .lbl{font-size:13px;font-weight:600;color:var(--ink)}.ocr-ex .sub{font-size:11px;color:var(--ink-faint);margin-top:2px}.found-word{background:var(--green-soft);color:var(--green-hover);padding:0 3px;border-radius:3px;font-weight:600;border-bottom:2px solid var(--green)}.loop-graph{display:none;flex-direction:column;align-items:center;justify-content:center;padding:40px 20px;text-align:center}.loop-graph.show{display:flex}.loop-ring{position:relative;width:320px;height:320px;margin-bottom:24px}.loop-ring .center{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:70px;height:70px;border-radius:50%;background:var(--green-soft);display:grid;place-items:center}.loop-ring .center svg{width:36px;height:36px}.loop-ring .center-lbl{position:absolute;top:50%;left:50%;transform:translate(-50%,calc(-50% + 48px));font-size:12px;color:var(--ink-faint);white-space:nowrap}.loop-nodes{position:absolute;inset:0;transform:rotate(-90deg)}.loop-node{--r:120px;position:absolute;top:50%;left:50%;transform:rotate(calc(var(--i)*72deg)) translate(var(--r)) rotate(calc(var(--i)*-72deg));opacity:0;transform-origin:center center}.loop-node .dot{width:48px;height:48px;border-radius:50%;background:var(--surface);border:2px solid var(--green);display:grid;place-items:center;font-size:20px;box-shadow:0 4px 14px -4px #4c933840}.loop-node .lbl{margin-top:8px;font-size:12.5px;font-weight:600;color:var(--ink);white-space:nowrap;text-align:center}.loop-node.on .dot{background:var(--green);color:#fff}.loop-lines{position:absolute;inset:0}.loop-line{--r:120px;position:absolute;top:50%;left:50%;width:var(--r);height:2px;background:var(--line);transform-origin:left center;transform:rotate(calc(var(--i)*72deg));opacity:0}.loop-line.on{background:var(--green);opacity:1}.loop-title{font-size:20px;font-weight:700;color:var(--ink);margin-bottom:8px}.loop-desc{font-size:14px;color:var(--ink-soft);max-width:320px}.preview-wrap{height:100%;display:flex;flex-direction:column;padding:20px}.preview-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.preview-header h3{font-size:18px;font-weight:700}.close-preview{font-size:20px;color:var(--ink-faint);cursor:pointer;border:none;background:none;padding:4px 8px;border-radius:8px;transition:all .15s}.close-preview:hover{background:var(--surface-2);color:var(--ink)}.preview-tabs{display:flex;gap:4px;background:var(--surface-2);border-radius:10px;padding:3px;width:fit-content;margin-bottom:16px;flex-wrap:wrap}.preview-tab{padding:8px 16px;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;border:none;background:transparent;transition:all .15s;color:var(--ink-soft)}.preview-tab.on{background:var(--surface);box-shadow:0 1px 3px #00000014;color:var(--ink)}.preview-content{flex:1;overflow:auto}.preview-panel{display:none;animation:pop .3s var(--ease)}.preview-panel.on{display:block}.coming-soon{font-size:11px;font-weight:700;color:var(--green);background:var(--green-soft);padding:3px 8px;border-radius:6px;margin-right:8px}.notes-header h4{font-size:16px;font-weight:700;margin-bottom:16px}.notes-mock{display:grid;grid-template-columns:1fr 1fr;gap:12px}.note-block{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px;animation:pop .3s var(--ease);opacity:0;animation-delay:var(--delay);animation-fill-mode:forwards;transition:transform .15s}.note-block:hover{transform:translateY(-2px)}.note-tags{display:flex;gap:6px;margin-bottom:10px;flex-wrap:wrap}.note-title{font-size:15px;font-weight:700;margin-bottom:6px}.note-body{font-size:13px;color:var(--ink-soft);line-height:1.6}.whiteboard{grid-column:1/-1;background:var(--surface-2);border-radius:16px;padding:24px;position:relative;min-height:200px}.wb-card{position:absolute;transform:translate(-50%,-50%);background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:10px 14px;display:flex;align-items:center;gap:8px;cursor:pointer;transition:all .15s;opacity:0;animation:pop .3s var(--ease);animation-delay:var(--delay);animation-fill-mode:forwards;box-shadow:0 4px 14px -6px #00000014}.wb-card:hover{transform:translate(-50%,-50%) scale(1.05);border-color:var(--green);background:var(--green-soft)}.wb-icon{font-size:16px}.wb-text{font-size:13px;font-weight:600}.ai-header{margin-bottom:16px}.ai-header h4{font-size:16px;font-weight:700;margin-bottom:4px}.ai-header p{font-size:13px;color:var(--ink-soft)}.ai-langs{display:flex;gap:4px;background:var(--surface-2);border-radius:10px;padding:3px;width:fit-content;margin-bottom:16px}.ai-lang{padding:7px 14px;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;border:none;background:transparent;transition:all .15s;color:var(--ink-soft)}.ai-lang.on{background:var(--surface);box-shadow:0 1px 3px #00000014;color:var(--ink)}.ai-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px;animation:pop .3s var(--ease)}.ai-card .ai-title{font-size:18px;font-weight:700;margin-bottom:8px}.ai-card .ai-gloss{font-size:14px;color:var(--ink-soft);margin-bottom:16px}.ai-card .ai-section{margin-bottom:14px}.ai-card .ai-section h5{font-size:12px;font-weight:700;color:var(--ink-faint);text-transform:uppercase;letter-spacing:.04em;margin-bottom:8px}.ai-card .ai-section p{font-size:14px;line-height:1.6;color:var(--ink)}.ai-card .ai-examples{display:flex;flex-direction:column;gap:8px}.ai-card .ai-example{font-size:14px;padding:10px 14px;background:var(--surface-2);border-radius:10px}.ai-card .ai-example .eg-original{font-weight:600;margin-bottom:3px}.ai-card .ai-example .eg-translation{font-size:13px;color:var(--ink-soft)}.trees-header{margin-bottom:16px}.trees-header h4{font-size:16px;font-weight:700;margin-bottom:4px}.trees-header p{font-size:13px;color:var(--ink-soft)}.lang-overview{display:flex;justify-content:center;margin-bottom:24px}.lang-ring{position:relative;width:280px;height:280px}.lang-center{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:70px;height:70px;border-radius:50%;background:var(--green-soft);display:flex;flex-direction:column;align-items:center;justify-content:center}.lang-center .lc-num{font-size:28px;font-weight:800;color:var(--green)}.lang-center .lc-label{font-size:11px;color:var(--green-hover);font-weight:600}.lang-nodes{position:absolute;inset:0;transform:rotate(-90deg)}.lang-node{--r:100px;position:absolute;top:50%;left:50%;transform:rotate(calc(var(--i)*90deg)) translate(var(--r)) rotate(calc(var(--i)*-90deg));display:flex;flex-direction:column;align-items:center;gap:4px;cursor:pointer;opacity:0;animation:pop .3s var(--ease);animation-fill-mode:forwards}.lang-node:nth-child(1){animation-delay:.1s}.lang-node:nth-child(2){animation-delay:.2s}.lang-node:nth-child(3){animation-delay:.3s}.lang-node:nth-child(4){animation-delay:.4s}.lang-node:hover{transform:rotate(calc(var(--i)*90deg)) translate(calc(var(--r) - 8px)) rotate(calc(var(--i)*-90deg))}.lang-node .ln-dot{width:44px;height:44px;border-radius:50%;background:var(--surface);border:2px solid var(--green);display:grid;place-items:center;font-size:18px;box-shadow:0 4px 14px -4px #4c933840}.lang-node .ln-lbl{font-size:12px;font-weight:600;color:var(--ink)}.lang-node .ln-prog{font-size:11px;color:var(--ink-faint)}.tree-preview{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px;min-height:200px;text-align:center}.tree-preview .tp-title{font-size:15px;font-weight:700;margin-bottom:12px}.tree-preview .tp-desc{font-size:13px;color:var(--ink-soft)}.value-content{text-align:center;padding:40px 20px}.value-icon{font-size:48px;margin-bottom:16px}.value-content h4{font-size:20px;font-weight:700;margin-bottom:12px}.value-content p{font-size:14px;color:var(--ink-soft);line-height:1.7;max-width:400px;margin:0 auto 20px}.value-quote{font-size:15px;font-style:italic;color:var(--ink-soft);margin-bottom:24px;padding:16px;background:var(--surface-2);border-radius:12px;max-width:400px;margin-left:auto;margin-right:auto}.value-quote span{color:var(--ink)}.loop-view{position:relative;height:calc(100vh - 56px);min-height:640px;overflow:hidden;background:radial-gradient(circle at 50% 42%,#fff,var(--surface-2))}.loop-head{position:absolute;top:26px;left:0;right:0;text-align:center;z-index:3}.loop-head h2{font-size:22px;font-weight:700;letter-spacing:-.01em}.loop-head .badge{display:inline-block;margin-bottom:8px;font-size:11.5px;font-weight:700;color:var(--green);background:var(--green-soft);padding:4px 12px;border-radius:999px}.loop-head p{font-size:13.5px;color:var(--ink-soft);margin-top:8px;max-width:520px;margin-left:auto;margin-right:auto}.penta-stage{position:absolute;top:calc(50% + 24px);left:50%;transform:translate(-50%,-50%);width:430px;height:430px}.penta-edges{position:absolute;inset:0;overflow:visible}.penta-edges path{stroke:var(--green);stroke-width:1.6;fill:#4c93380a;stroke-dasharray:1400;stroke-dashoffset:1400;animation:draw 1.6s var(--ease) .3s forwards}@keyframes draw{to{stroke-dashoffset:0}}.penta-center{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:96px;height:96px;border-radius:50%;background:var(--green);display:grid;place-items:center;box-shadow:0 12px 30px -8px #4c933880;z-index:2;animation:pop .6s var(--ease) .2s both}.penta-center svg{width:38px;height:38px}.penta-center .cap{position:absolute;bottom:-26px;font-size:12px;color:var(--ink-soft);white-space:nowrap;font-weight:600}.penta-ring{position:absolute;inset:0}.penta-node{position:absolute;top:50%;left:50%;transform:rotate(calc(var(--i)*72deg - 90deg)) translate(var(--r,175px)) rotate(calc(var(--i)*-72deg + 90deg))}.penta-node .box{transform:translate(-50%,-50%);background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:12px 18px;box-shadow:var(--shadow);text-align:center;min-width:96px;animation:pop .55s var(--ease) both;animation-delay:var(--d,0s)}.penta-node .n{font-size:15px;font-weight:700}.penta-node .s{font-size:11px;color:var(--ink-faint);margin-top:2px}.penta-node.accent .box{border-color:var(--green);background:var(--green-soft)}.penta-node.accent .n{color:var(--green-hover)}@keyframes pop{0%{opacity:0;transform:translate(-50%,-50%) scale(.6)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}.loop-curve{position:absolute;left:40px;bottom:40px;width:230px;z-index:2;opacity:.9}.loop-curve .lbl{font-size:11px;color:var(--ink-faint);margin-bottom:4px}.loop-curve svg{width:100%;height:70px}.loop-curve path{fill:none;stroke:var(--green);stroke-width:2;stroke-dasharray:400;stroke-dashoffset:400;animation:draw 1.4s var(--ease) .6s forwards}.loop-foot{position:absolute;right:40px;bottom:44px;font-size:12.5px;color:var(--ink-soft);max-width:280px;text-align:right;z-index:2}.loop-foot b{color:var(--green)}.tour{min-height:calc(100vh - 56px);display:flex;flex-direction:column;background:radial-gradient(circle at 50% 30%,#fff,var(--surface-2))}.tour-top{padding:20px 30px 0;flex-shrink:0}.tour-title{font-size:17px;font-weight:700;display:flex;align-items:center;gap:8px}.tour-title .spark{color:var(--green)}.tour-chapters{display:flex;gap:6px;margin-top:14px;flex-wrap:wrap}.tchap{padding:8px 15px;border-radius:10px;font-size:13.5px;font-weight:600;cursor:pointer;color:var(--ink-soft);background:var(--surface);border:1px solid var(--line);transition:all .15s}.tchap.on{background:var(--green-soft);color:var(--green);border-color:transparent}.tchap:not(.on):hover{border-color:#d5d5cd}.tour-flow{display:flex;align-items:center;gap:8px;margin-top:16px;flex-wrap:wrap;min-height:26px}.tflow-step{font-size:12.5px;color:var(--ink-faint);display:flex;align-items:center;gap:8px;transition:all .2s}.tflow-step .dotn{width:20px;height:20px;border-radius:50%;background:var(--surface-2);color:var(--ink-faint);font-size:11px;font-weight:700;display:grid;place-items:center;border:1px solid var(--line)}.tflow-step.on{color:var(--ink);font-weight:600}.tflow-step.on .dotn{background:var(--green);color:#fff;border-color:var(--green)}.tflow-step.done .dotn{background:var(--green-soft);color:var(--green);border-color:transparent}.tflow-arrow{color:var(--ink-faint);font-size:12px}.tour-stage{flex:1;position:relative;padding:20px 30px 10px;min-height:460px;display:flex;align-items:center;justify-content:center}.scene{display:none;width:100%;max-width:860px}.scene.on{display:block}.scene-cap{text-align:center;font-size:14.5px;color:var(--ink-soft);margin-top:22px;max-width:640px;margin-left:auto;margin-right:auto;line-height:1.6}.scene-cap b{color:var(--ink)}.tour-ctrl{flex-shrink:0;padding:14px 30px 22px;display:flex;align-items:center;justify-content:center;gap:16px}.tour-dots{display:flex;gap:7px}.tour-dots i{width:8px;height:8px;border-radius:50%;background:var(--line);cursor:pointer;transition:all .2s}.tour-dots i.on{background:var(--green);width:22px;border-radius:4px}.tctrl-btn{font-size:12.5px;font-weight:600;color:var(--ink-soft);background:var(--surface);border:1px solid var(--line);border-radius:9px;padding:7px 13px;cursor:pointer;transition:all .15s}.tctrl-btn:hover{border-color:#d5d5cd;color:var(--ink)}.scene.on .anim{animation:fadeUp .55s var(--ease) both}@keyframes fadeUp{0%{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}.scene.on .d1{animation-delay:.05s}.scene.on .d2{animation-delay:.18s}.scene.on .d3{animation-delay:.31s}.scene.on .d4{animation-delay:.44s}.scene.on .d5{animation-delay:.57s}.scene.on .d6{animation-delay:.7s}.kb-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.kb-card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:15px 17px;box-shadow:var(--shadow);transition:all .18s}.kb-card:hover{border-color:var(--green);transform:translateY(-2px);box-shadow:0 10px 24px -12px #4c933859}.kb-card .w{font-size:16px;font-weight:700}.kb-card .g{font-size:12.5px;color:var(--ink-soft);margin-top:3px}.kb-meta{display:flex;gap:6px;flex-wrap:wrap;margin-top:11px}.mtag{font-size:10.5px;font-weight:600;padding:2px 8px;border-radius:6px}.mtag.lang{background:var(--blue-soft);color:var(--blue)}.mtag.pos{background:var(--violet-soft);color:var(--violet-hover)}.mtag.lvl{background:var(--green-soft);color:var(--green)}.mtag.src{background:var(--surface-2);color:var(--ink-soft)}.kb-title{text-align:center;font-size:15px;font-weight:700;margin-bottom:16px}.note-doc{max-width:600px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:22px 24px;position:relative}.note-doc .dt{font-size:16px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px}.note-line{font-size:14.5px;color:var(--ink);margin-bottom:8px}.note-line .cur{display:inline-block;width:2px;height:16px;background:var(--green);vertical-align:-3px;animation:blink 1s step-end infinite}@keyframes blink{50%{opacity:0}}.at-menu{position:absolute;left:24px;top:96px;background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-lg);padding:6px;width:260px;z-index:5;animation:pop2 .3s var(--ease) both;animation-delay:.5s}@keyframes pop2{0%{opacity:0;transform:translateY(-6px) scale(.97)}to{opacity:1;transform:none}}.at-menu .amh{font-size:11px;color:var(--ink-faint);padding:5px 8px}.at-item{display:flex;align-items:center;gap:8px;padding:8px;border-radius:8px;font-size:13px}.at-item.sel{background:var(--green-soft);color:var(--green-hover);font-weight:600}.inserted-block{margin-top:12px;border:1px solid var(--green);background:var(--green-soft);border-radius:12px;padding:13px 15px;animation:flyIn .6s var(--ease) both;animation-delay:.95s}@keyframes flyIn{0%{opacity:0;transform:translateY(-16px) scale(.94)}to{opacity:1;transform:none}}.inserted-block .ib-w{font-size:15px;font-weight:700;color:var(--green-hover)}.inserted-block .ib-g{font-size:12.5px;color:var(--ink-soft);margin-top:2px}.inserted-block .ib-link{font-size:12px;color:var(--green);font-weight:600;margin-top:9px;display:inline-block;cursor:pointer}.wb{max-width:720px;margin:0 auto;height:360px;background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);position:relative;overflow:hidden;background-image:radial-gradient(var(--line) 1px,transparent 1px);background-size:20px 20px}.wb-lbl{position:absolute;top:14px;left:16px;font-size:12px;color:var(--ink-faint)}.wb-card{position:absolute;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:11px 14px;box-shadow:var(--shadow);font-size:12.5px;max-width:180px}.wb-card .wk{font-weight:700;font-size:13px;display:flex;align-items:center;gap:6px}.wb-card .wg{color:var(--ink-soft);font-size:11.5px;margin-top:3px}.wb-dot{width:7px;height:7px;border-radius:50%}.wb-svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}.wb-svg path{fill:none;stroke:var(--green);stroke-width:1.6;stroke-dasharray:4 4;stroke-dashoffset:300;opacity:.6}.scene.on .wb-svg path{animation:draw 1.1s var(--ease) 1s forwards}.ai-langs{display:flex;gap:6px;justify-content:center;margin-bottom:16px;flex-wrap:wrap}.ai-lang{padding:6px 13px;border-radius:9px;font-size:12.5px;font-weight:600;cursor:pointer;color:var(--ink-soft);background:var(--surface);border:1px solid var(--line);transition:all .15s}.ai-lang.on{background:var(--green-soft);color:var(--green);border-color:transparent}.weak-node{max-width:420px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:22px;text-align:center;position:relative}.weak-node .wn-badge{position:absolute;top:-10px;right:24px;background:var(--warn);color:#fff;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;border:2px solid #fff}.weak-node .wn-w{font-size:24px;font-weight:800}.weak-node .wn-g{font-size:13px;color:var(--ink-soft);margin-top:4px}.weak-node .wn-tag{display:inline-block;margin-top:10px;font-size:11.5px;font-weight:600;color:var(--warn);background:var(--warn-soft);padding:4px 11px;border-radius:999px}.ai-btn{margin-top:16px;font-size:13.5px;font-weight:700;color:#fff;background:var(--green);border:none;border-radius:11px;padding:11px 20px;cursor:pointer;box-shadow:0 8px 20px -10px #4c933880}.deep{max-width:640px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:22px 24px}.deep .thinking{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-soft);animation:fadeUp .4s both}.deep .thinking .dots{display:inline-flex;gap:3px}.deep .thinking .dots i{width:6px;height:6px;border-radius:50%;background:var(--green);animation:bounce 1s infinite}.deep .thinking .dots i:nth-child(2){animation-delay:.15s}.deep .thinking .dots i:nth-child(3){animation-delay:.3s}@keyframes bounce{0%,to{opacity:.3;transform:translateY(0)}50%{opacity:1;transform:translateY(-4px)}}.deep .badge-ai{font-size:10.5px;font-weight:700;color:var(--green);background:var(--green-soft);padding:2px 8px;border-radius:6px;margin-left:auto}.dc-word{font-size:20px;font-weight:800}.dc-gloss{font-size:12.5px;color:var(--ink-soft);margin-top:3px}.dsec{margin-top:15px}.dsec h6{font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-faint);margin-bottom:5px}.dsec p{font-size:14px;line-height:1.6}.dex{background:var(--surface-2);border-radius:10px;padding:9px 12px;margin-bottom:7px}.dex .o{font-size:13.5px;font-weight:600}.dex .t{font-size:12px;color:var(--ink-soft);margin-top:2px}.deep.stream .stg{animation:fadeUp .5s var(--ease) both}.deep.stream .sg1{animation-delay:.15s}.deep.stream .sg2{animation-delay:.55s}.deep.stream .sg3{animation-delay:.95s}.deep.stream .sg4{animation-delay:1.5s}.pano-overview{position:relative;height:400px}.ov-ring{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:340px;height:340px}.ov-center{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:104px;height:104px;border-radius:50%;background:var(--green-soft);border:2px solid var(--green);display:grid;place-items:center;text-align:center;z-index:2}.ov-center b{font-size:30px;color:var(--green-hover);line-height:1}.ov-center span{font-size:11px;color:var(--green);display:block;margin-top:2px}.ov-node{position:absolute;top:50%;left:50%;transform:rotate(calc(var(--i)*90deg - 90deg)) translate(140px) rotate(calc(var(--i)*-90deg + 90deg));cursor:pointer}.ov-node .oc{transform:translate(-50%,-50%);width:84px;height:84px;border-radius:50%;background:var(--surface);border:1px solid var(--line);display:grid;place-items:center;transition:all .2s;position:relative;box-shadow:var(--shadow)}.ov-node:hover .oc{border-color:var(--green);transform:translate(-50%,-50%) scale(1.05)}.ov-node .flag{font-size:26px}.ov-node .nm{position:absolute;top:-20px;font-size:12px;color:var(--ink-soft);white-space:nowrap;font-weight:600}.ov-ringsvg{position:absolute;inset:-6px}.ov-ringsvg circle{fill:none;stroke-width:4;stroke-linecap:round}.ov-ringsvg .bg{stroke:var(--surface-2)}.ov-ringsvg .fg{stroke:var(--green);transform:rotate(-90deg);transform-origin:center;transition:stroke-dashoffset 1.2s var(--ease)}.ov-prog{position:absolute;bottom:-19px;font-size:12px;font-weight:700;color:var(--green);white-space:nowrap}.ov-hint{position:absolute;bottom:8px;left:0;right:0;text-align:center;font-size:12px;color:var(--ink-faint)}.pano-tree{position:relative;height:400px}.pt-back{position:absolute;top:6px;left:6px;font-size:12.5px;color:var(--green);font-weight:600;cursor:pointer;z-index:5;background:var(--surface);border:1px solid var(--line);border-radius:9px;padding:6px 12px}.pt-head{position:absolute;top:10px;left:0;right:0;text-align:center;font-size:12.5px;color:var(--ink-soft);z-index:3}.pt-head b{color:var(--ink)}.pt-stage{position:absolute;top:calc(50% + 12px);left:50%;transform:translate(-50%,-50%);width:340px;height:340px}.pt-center{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:88px;height:88px;border-radius:50%;background:var(--green);color:#fff;display:grid;place-items:center;text-align:center;font-size:12.5px;font-weight:700;line-height:1.2;z-index:2;box-shadow:0 8px 22px -8px #4c933880;padding:6px}.pt-node{position:absolute;top:50%;left:50%;transform:rotate(calc(var(--i)*var(--step) - 90deg)) translate(var(--r,138px)) rotate(calc(var(--i)*var(--step)*-1 + 90deg))}.pt-node .pc{transform:translate(-50%,-50%);border-radius:999px;padding:8px 13px;font-size:12px;text-align:center;white-space:nowrap;border:1px solid var(--line);background:var(--surface);color:var(--ink);box-shadow:0 3px 10px -6px #14141233;transition:all .2s;cursor:default}.pt-node.unlocked .pc{background:var(--green-soft);border-color:var(--green);color:var(--green-hover);font-weight:600}.pt-node.locked .pc{opacity:.42;border-style:dashed;color:var(--ink-faint)}.pt-node .tip{position:absolute;left:50%;top:-30px;transform:translate(-50%);background:var(--ink);color:#fff;font-size:11px;padding:4px 9px;border-radius:7px;white-space:nowrap;opacity:0;pointer-events:none;transition:.15s}.pt-node:hover .tip{opacity:1;top:-34px}.pt-edge{position:absolute;top:50%;left:50%;height:1.5px;transform-origin:left center;background:var(--line);z-index:1}.pt-edge.on{background:linear-gradient(90deg,var(--green),var(--line))}.scene.on .pt-node{animation:pop3 .5s var(--ease) both}@keyframes pop3{0%{opacity:0}to{opacity:1}}.value{max-width:640px;margin:0 auto;text-align:center}.value .chart{background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:20px 24px}.value .chart svg{width:100%;height:200px;overflow:visible}.value .chart .grid{stroke:var(--line);stroke-width:1}.value .chart .cram{fill:none;stroke:var(--ink-faint);stroke-width:2.5;stroke-dasharray:600;stroke-dashoffset:600}.value .chart .loop{fill:none;stroke:var(--green);stroke-width:3;stroke-dasharray:600;stroke-dashoffset:600}.scene.on .value .chart .cram{animation:draw 1.6s var(--ease) .3s forwards}.scene.on .value .chart .loop{animation:draw 1.6s var(--ease) .5s forwards}.value .legend{display:flex;gap:20px;justify-content:center;margin-top:12px;font-size:12.5px}.value .legend span{display:flex;align-items:center;gap:6px;color:var(--ink-soft)}.value .legend .ln{width:16px;height:3px;border-radius:2px}.value .quote{font-size:16px;font-style:italic;margin-top:20px}.value .axis-lbl{font-size:11px;fill:var(--ink-faint)}@media (max-width:820px){.kb-grid{grid-template-columns:1fr}}@media (min-width:1280px){.work{padding-right:0}.center-wrap{max-width:780px}}@media (min-width:1440px){.side{width:250px}.center-wrap{max-width:820px}.view{padding:30px 40px}.topbar{padding:0 28px}}@media (min-width:1680px){.side{width:270px}.center-wrap{max-width:880px}.view{padding:32px 50px}.topbar{padding:0 36px}.nav-item{padding:11px 14px;font-size:14.5px}}@media (min-width:1920px){.side{width:290px}.center-wrap{max-width:960px}.view{padding:36px 60px}.topbar{padding:0 44px}.nav-item{padding:12px 16px;font-size:15px}.loop-view .penta-stage{width:480px;height:480px}.penta-node{--r:200px}}
