:root{--bg:#f7f8fa;--ink:#202b3c;--muted:#7f8b9d;--line:#e8ebf0;--blue:#3278d4;--blue-dark:#1859af;--green:#35a579;--amber:#e6a13a;--red:#d76767;--navy:#23395d;--shadow:0 12px 30px rgba(37,55,83,.07)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.5 Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft Yahei",sans-serif}button,input,select{font:inherit}button{cursor:pointer;border:0;background:none;color:inherit}.app-shell{display:flex;min-height:100vh}.sidebar{width:244px;background:#fff;border-right:1px solid var(--line);padding:28px 18px 20px;display:flex;flex-direction:column;flex-shrink:0}.brand{display:flex;align-items:center;gap:12px;padding:0 10px 34px}.brand-mark{width:35px;height:35px;background:var(--navy);color:#fff;display:grid;place-items:center;border-radius:9px;font-weight:800;font-size:19px}.brand-name{font-weight:800;font-size:17px;letter-spacing:.5px}.brand-sub{color:#9aa5b5;font-size:10px;margin-top:1px}.nav-list{display:grid;gap:6px}.nav-item{display:flex;align-items:center;gap:13px;padding:11px 12px;border-radius:8px;color:#778396;text-align:left;transition:.2s}.nav-item:hover{background:#f4f7fb;color:var(--blue)}.nav-item.active{background:#eaf2fc;color:var(--blue);font-weight:700}.nav-icon{font-size:18px;width:18px;text-align:center}.sidebar-bottom{margin-top:auto}.streak-card{background:#f7f8fb;border:1px solid #edf0f4;border-radius:10px;padding:15px;margin:0 2px 18px}.streak-top{display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}.streak-top strong{color:var(--blue)}.streak-dots{display:flex;gap:5px;margin:13px 0 8px}.streak-dots i{width:17px;height:5px;background:#d8e5f7;border-radius:10px}.streak-dots i.today{background:var(--blue)}.streak-card small{color:#9ca7b6;font-size:10px}.profile{display:flex;align-items:center;gap:10px;border-top:1px solid var(--line);margin-top:18px;padding:18px 8px 0}.avatar{width:32px;height:32px;border-radius:50%;background:#d9e7f8;color:var(--blue);display:grid;place-items:center;font-weight:700}.profile strong,.profile small{display:block}.profile strong{font-size:12px}.profile small{font-size:10px;color:var(--muted)}.more{margin-left:auto;color:#aab3c0;font-weight:700}.main-content{flex:1;min-width:0}.topbar{height:72px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 46px;background:rgba(255,255,255,.58)}.crumb{color:#a0a9b7;font-size:12px}.crumb span{margin:0 8px;color:#c2c8d0}.crumb strong{color:#5d687a}.top-actions{display:flex;align-items:center;gap:21px}.icon-button{font-size:21px;color:#8190a5}.help-button{color:#758198;font-size:12px}.menu-button{display:none}.view{display:none;max-width:1190px;margin:0 auto;padding:46px 48px 70px}.active-view{display:block}.welcome-row,.study-header,.view-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:20px}.eyebrow{font-size:10px;letter-spacing:1.6px;color:#9ba7b7;font-weight:800;margin:0 0 8px}.view h1{font-size:29px;letter-spacing:-.6px;margin:0 0 6px}.muted{color:var(--muted);margin:0}.level-badge{min-width:174px;border-left:1px solid var(--line);padding-left:20px;display:grid;grid-template-columns:1fr auto;gap:2px 10px}.level-label{font-size:11px;color:var(--muted);grid-column:1/-1}.level-badge strong{color:var(--blue);font-size:16px}.level-badge small{font-size:10px;color:#9da8b7;text-align:right}.xp-bar{height:4px;background:#e4ebf4;border-radius:4px;align-self:center}.xp-bar i{display:block;height:100%;background:var(--blue);border-radius:4px}.hero-panel{margin-top:30px;background:#e9f2fc;min-height:210px;border-radius:12px;padding:32px 40px;display:flex;justify-content:space-between;overflow:hidden;position:relative}.hero-kicker{color:#6392c5;font-size:10px;letter-spacing:1.6px;font-weight:800}.hero-panel h2{font-size:26px;margin:7px 0 7px}.hero-panel p{color:#66809c;margin:0 0 22px}.primary-button{background:var(--blue);color:#fff;border-radius:7px;padding:11px 16px;font-weight:700;box-shadow:0 7px 14px rgba(50,120,212,.18);transition:.2s}.primary-button:hover{background:var(--blue-dark);transform:translateY(-1px)}.primary-button span{margin-left:14px;font-size:17px}.hero-illustration{width:285px;height:190px;position:relative;margin-top:-20px;margin-right:15px}.orbit{border:1px solid rgba(74,133,196,.24);border-radius:50%;position:absolute}.orbit-one{width:285px;height:115px;top:45px;left:0;transform:rotate(-18deg)}.orbit-two{width:220px;height:95px;top:56px;left:32px;transform:rotate(38deg)}.compass{position:absolute;left:118px;top:69px;width:46px;height:46px;border-radius:50%;background:#fff;display:grid;place-items:center;color:var(--blue);font-size:18px;font-weight:800;box-shadow:0 9px 18px rgba(50,120,212,.18)}.route-dot{position:absolute;width:9px;height:9px;border-radius:50%;background:#fff;border:3px solid var(--blue)}.dot-one{left:24px;top:113px}.dot-two{right:27px;top:72px}.dot-three{left:98px;bottom:5px}.section-heading{display:flex;justify-content:space-between;align-items:center;margin:35px 0 16px}.section-heading h2,.panel h2{font-size:17px;margin:0 0 3px}.text-button{color:var(--blue);font-size:12px;font-weight:700}.text-button span{font-size:16px;margin-left:8px}.progress-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.progress-card{background:#fff;border:1px solid var(--line);border-radius:9px;padding:19px;display:flex;align-items:center;gap:13px;box-shadow:0 4px 12px rgba(37,55,83,.025)}.card-icon{width:35px;height:35px;border-radius:9px;display:grid;place-items:center;font-weight:800}.card-icon.blue{background:#e9f2fe;color:var(--blue)}.card-icon.green{background:#e6f6ef;color:var(--green)}.card-icon.amber{background:#fff4df;color:var(--amber)}.card-copy{flex:1}.card-copy span{display:block;font-size:11px;color:var(--muted)}.card-copy strong{display:block;font-size:17px;margin-top:4px}.card-copy b{color:var(--ink)}.ring{width:43px;height:43px;border-radius:50%;display:grid;place-items:center;font-size:10px;font-weight:800;background:conic-gradient(currentColor 0 60%,#edf0f4 60%);position:relative;color:var(--blue)}.ring:after{content:"";position:absolute;inset:5px;background:white;border-radius:50%}.ring span{position:relative;z-index:1}.green-ring{color:var(--green)}.amber-ring{color:var(--amber);background:conic-gradient(currentColor 0 0%,#edf0f4 0)}.lower-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:35px}.panel{background:#fff;border:1px solid var(--line);border-radius:9px;padding:22px;box-shadow:0 4px 12px rgba(37,55,83,.025)}.panel-header{display:flex;justify-content:space-between;align-items:flex-start}.status-chip{background:#e7f7ef;color:var(--green);font-size:11px;padding:4px 9px;border-radius:20px}.timeline{margin-top:19px}.timeline-item{display:flex;align-items:center;gap:12px;min-height:57px;border-top:1px solid #f0f2f5}.timeline-item:first-child{border-top:0}.timeline-dot{width:23px;height:23px;border:1px solid #dae0e9;color:#a4afbe;border-radius:50%;display:grid;place-items:center;font-size:11px;flex-shrink:0}.timeline-item.done .timeline-dot{background:#e7f7ef;border-color:#c1ead7;color:var(--green)}.timeline-item.active .timeline-dot{background:#eaf2fc;border-color:#bfd7f4;color:var(--blue);font-weight:700}.timeline-item div{flex:1}.timeline-item strong,.timeline-item small{display:block}.timeline-item strong{font-size:12px}.timeline-item small{font-size:11px;color:var(--muted)}.timeline-item em{font-size:10px;color:#a1aab8;font-style:normal}.mini-button{color:var(--blue);font-size:11px;font-weight:700}.trend{font-size:11px;color:var(--green);background:#e8f7f0;border-radius:20px;padding:4px 9px}.chart{height:140px;position:relative;margin-top:16px}.chart-grid{position:absolute;inset:13px 0 14px;display:flex;flex-direction:column;justify-content:space-between}.chart-grid i{border-top:1px dashed #e9edf2}.chart svg{position:absolute;inset:0;width:100%;height:100%}.chart-labels,.bar-labels{display:flex;justify-content:space-between;color:#a9b2bf;font-size:10px}.stats-line{border-top:1px solid #edf0f4;margin-top:16px;padding-top:14px;display:flex;justify-content:space-between;color:var(--muted);font-size:11px}.stats-line b{color:var(--ink);font-size:15px;margin-right:3px}.session-count{text-align:right;min-width:150px}.session-count strong{font-size:28px;color:var(--blue)}.session-count span{color:#a0a9b6}.thin-progress{height:4px;background:#e5ebf3;border-radius:5px;margin-top:7px}.thin-progress i{display:block;height:100%;background:var(--blue);border-radius:5px}.study-layout{display:grid;grid-template-columns:minmax(0,760px) 250px;gap:25px;margin-top:30px}.word-card{background:#fff;border:1px solid var(--line);border-radius:11px;padding:30px 35px;box-shadow:var(--shadow)}.word-meta{display:flex;justify-content:space-between}.tag{display:inline-block;font-size:10px;font-weight:700;padding:4px 8px;border-radius:4px}.blue-tag{background:#eaf2fc;color:var(--blue)}.orange-tag{background:#fff2dd;color:#b47c27}.source{font-size:11px;color:#a1adba}.word-main{text-align:center;padding:35px 0 25px;border-bottom:1px solid #eef0f3}.word-main h2{display:inline-block;font:700 43px/1.1 Georgia,serif;margin:0;color:#263a59}.sound-button{margin-left:11px;width:30px;height:30px;border-radius:50%;background:#eaf2fc;color:var(--blue);vertical-align:8px}.phonetic{color:#9da8b7;margin:10px 0 2px;font-family:Georgia,serif}.meaning{font-size:16px;font-weight:700;margin:0}.forms{display:flex;justify-content:center;gap:12px;margin-top:14px;font-size:11px;color:#9ca6b4}.forms span{color:#c0c7d0}.context-box{background:#f8fafc;border-left:3px solid #a8c9ee;padding:15px 17px;margin-top:23px}.context-label{font-size:10px;color:var(--blue);font-weight:800;letter-spacing:.5px}.context-box p{font:16px/1.6 Georgia,serif;margin:9px 0 4px;color:#33445e}.context-box p strong{color:var(--blue)}.context-box small{color:#8e9aaa;font-size:11px}.answer-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:23px}.answer-button{border:1px solid var(--line);border-radius:7px;padding:11px 7px;display:grid;grid-template-columns:26px 1fr;align-items:center;text-align:left;transition:.2s}.answer-button:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.answer-button span{grid-row:span 2;width:23px;height:23px;border-radius:50%;display:grid;place-items:center;font-weight:700}.answer-button b,.answer-button small{font-size:11px}.answer-button small{color:#9ca6b4}.unknown span{color:var(--red);background:#fdecec}.hard span{color:var(--amber);background:#fff3dd}.easy span{color:var(--green);background:#e8f7f0}.aside-tip{background:#fff7e8;border:1px solid #f7e6bd;border-radius:9px;padding:16px;display:flex;gap:10px}.tip-icon{width:20px;height:20px;border-radius:50%;background:#f4c35f;color:#fff;display:grid;place-items:center;font-weight:800;flex-shrink:0}.aside-tip strong{font-size:12px}.aside-tip p{font-size:11px;color:#9b845a;margin:5px 0 0}.mini-stats{background:#fff;border:1px solid var(--line);border-radius:9px;padding:5px 17px;margin-top:15px}.mini-stats div{padding:15px 0;border-bottom:1px solid #f0f2f4;display:flex;justify-content:space-between;align-items:center}.mini-stats div:last-child{border:0}.mini-stats span{font-size:11px;color:var(--muted)}.mini-stats b{font-size:17px}.mini-stats small{font-size:10px;color:#9ba6b5;font-weight:400}.map-summary{border-left:1px solid var(--line);padding-left:20px}.map-summary b{font-size:27px;color:var(--blue)}.map-summary span{font-size:11px;color:var(--muted);margin-left:4px}.map-hero{background:#fff;border:1px solid var(--line);border-radius:10px;margin-top:30px;padding:28px 35px;display:grid;grid-template-columns:1.1fr 1fr;align-items:center;gap:30px;min-height:270px}.map-path{height:190px;position:relative;background:#f7faff;border-radius:8px;overflow:hidden}.map-line{position:absolute;width:76%;height:2px;background:#b8d2ee;top:100px;left:12%;transform:rotate(-14deg)}.map-node{position:absolute;width:42px;height:42px;border-radius:50%;font-weight:800;z-index:1}.done-node{background:#dff3e9;border:4px solid #b9e5d0;color:var(--green)}.current-node{background:var(--blue);border:5px solid #c9def6;color:#fff;box-shadow:0 0 0 7px #e6f0fb}.locked-node{background:#fff;border:2px solid #dce3eb;color:#aeb8c5}.node-2{left:29%;top:76px}.node-3{left:52%;top:66px}.node-4{left:70%;top:29px}.node-5{left:83%;top:10px}.done-node:not(.node-2){left:13%;top:119px}.map-copy h2{font-size:25px;margin:8px 0 3px}.map-copy p{color:var(--muted);font-size:12px}.chapter-progress,.small-bar{height:5px;background:#e9eef4;border-radius:5px;margin:16px 0 7px}.chapter-progress i,.small-bar i{display:block;height:100%;background:var(--blue);border-radius:5px}.map-copy small{color:#a0aab8;font-size:10px}.map-copy .primary-button{display:block;margin-top:18px}.chapter-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px}.chapter-card{background:#fff;border:1px solid var(--line);border-radius:9px;padding:18px;position:relative;min-height:140px}.chapter-card h3{font-size:14px;margin:20px 0 2px}.chapter-card p{font-size:11px;color:var(--muted);margin:0}.chapter-number{font-size:10px;color:#9faab8;font-weight:800}.chapter-card.complete .chapter-number,.chapter-card.current .chapter-number{color:var(--blue)}.chapter-card.complete .small-bar i{background:var(--green)}.chapter-state{display:inline-block;font-size:10px;color:var(--green);margin-top:8px}.chapter-card.current{border-color:#bcd5f2;box-shadow:0 5px 16px rgba(50,120,212,.09)}.chapter-card.current .chapter-state{color:var(--blue)}.chapter-card.locked{background:#fafbfc;color:#b2bcc8}.lock{position:absolute;right:18px;top:18px;color:#b4becb}.mistake-banner{margin-top:28px;background:#fff3e1;border:1px solid #f5e0b9;padding:17px 20px;border-radius:9px;display:flex;align-items:center;gap:13px}.banner-icon{width:28px;height:28px;border-radius:50%;background:#f0b452;color:#fff;display:grid;place-items:center;font-weight:800}.mistake-banner strong{font-size:13px}.mistake-banner p{font-size:11px;color:#a78b5d;margin:2px 0 0}.banner-score{margin-left:auto;color:#bd8532;font-size:12px;font-weight:800}.word-list{margin-top:17px;padding:0;overflow:hidden}.list-header,.list-row{display:grid;grid-template-columns:2.1fr 1fr .8fr 35px;align-items:center;gap:15px;padding:15px 20px}.list-header{background:#fafbfd;color:#a1abb8;font-size:10px}.list-row{border-top:1px solid #f0f2f4}.list-row strong,.list-row small{display:block}.list-row strong{font-family:Georgia,serif;font-size:16px}.list-row small{color:#9ba6b4;font-size:10px;margin-top:2px}.error-tag{color:#ba7f2a;background:#fff5e4;border-radius:4px;padding:4px 7px;justify-self:start;font-size:10px}.due{font-size:11px;color:#8d98a8}.today-due{color:var(--red);font-weight:700}.round-arrow{width:27px;height:27px;border:1px solid #e4e9ee;border-radius:50%;color:var(--blue)}.period-select{border:1px solid var(--line);background:#fff;padding:8px 11px;border-radius:6px;color:#6e7b8d;font-size:11px}.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:30px}.metric-grid article{background:#fff;border:1px solid var(--line);border-radius:9px;padding:20px}.metric-grid span{display:block;color:var(--muted);font-size:11px}.metric-grid strong{font-size:28px;display:block;margin:8px 0}.metric-grid small{font-size:13px}.metric-grid em{font-style:normal;color:var(--green);font-size:10px}.stats-detail{margin-top:18px}.bar-chart{height:240px;display:flex;gap:24px;align-items:flex-end;border-bottom:1px solid #e8edf2;margin-top:28px;padding:0 24px}.bar-chart div{flex:1;background:#d5e5f7;max-width:65px;border-radius:5px 5px 0 0;position:relative;min-height:8px}.bar-chart div span{position:absolute;top:-20px;left:50%;transform:translateX(-50%);font-size:10px;color:#9aa6b4}.bar-chart .today-bar{background:var(--blue)}.bar-labels{padding:10px 22px 0}.settings-layout{display:grid;grid-template-columns:1fr 300px;gap:18px;margin-top:30px}.settings-main{padding:0}.setting-section{padding:25px;display:flex;justify-content:space-between;align-items:center;gap:20px}.setting-section h2{margin:0 0 4px;font-size:15px}.setting-section .muted{font-size:11px}.setting-divider{height:1px;background:#edf0f3}.number-settings{display:flex;gap:20px}.number-settings label{display:grid;grid-template-columns:auto auto;gap:3px 9px;align-items:center}.number-settings label>span{font-size:11px;color:var(--muted);grid-column:1/-1}.number-settings small{font-size:10px;color:#a5afbc}.stepper{display:flex;border:1px solid var(--line);border-radius:6px;overflow:hidden}.stepper button{width:28px;color:var(--blue);font-size:18px;background:#fafbfd}.stepper input{width:39px;text-align:center;border:0;border-left:1px solid var(--line);border-right:1px solid var(--line);outline:0;color:var(--ink);font-weight:700}.toggle-label{font-size:11px;color:#687588;display:flex;align-items:center;gap:8px}.toggle-label input{display:none}.toggle{width:35px;height:20px;border-radius:20px;background:var(--blue);position:relative}.toggle:after{content:"";width:16px;height:16px;background:#fff;border-radius:50%;position:absolute;right:2px;top:2px}.segmented{border:1px solid var(--line);border-radius:6px;padding:3px;display:flex}.segmented button{font-size:11px;color:#8f9bab;padding:5px 12px;border-radius:4px}.segmented .selected{background:#eaf2fc;color:var(--blue);font-weight:700}.settings-side{display:grid;gap:14px;align-content:start}.preview-card{background:var(--navy);color:#fff;border-radius:9px;padding:22px}.preview-label{display:block;color:#b5c5dc;font-size:10px;letter-spacing:1px}.preview-card>strong{display:block;font-size:23px;margin:14px 0 3px}.preview-card>strong b{color:#fff}.preview-card p{margin:0;color:#b6c4d8;font-size:11px}.preview-card p b{color:#fff}.preview-breakdown{display:flex;gap:20px;border-top:1px solid rgba(255,255,255,.16);margin-top:19px;padding-top:13px;color:#b7c4d7;font-size:10px}.preview-breakdown b{color:#fff;font-size:13px;margin-left:3px}.tip-card{background:#fff8eb;border:1px solid #f3e3c0;border-radius:9px;padding:18px}.tip-card span{color:#b48338;font-size:11px;font-weight:800}.tip-card p{color:#9c885f;font-size:11px;margin:7px 0 0}.saved-note{color:var(--green);font-size:11px}.toast{position:fixed;right:26px;bottom:24px;background:var(--navy);color:#fff;padding:11px 16px;border-radius:7px;font-size:11px;opacity:0;transform:translateY(10px);transition:.25s;pointer-events:none}.toast.show{opacity:1;transform:translateY(0)}
@media(max-width:980px){.sidebar{width:205px}.view{padding:38px 28px}.topbar{padding:0 28px}.study-layout{grid-template-columns:1fr}.study-aside{display:grid;grid-template-columns:1fr 1fr;gap:15px}.mini-stats{margin-top:0}.chapter-grid{grid-template-columns:repeat(2,1fr)}.settings-layout{grid-template-columns:1fr}.settings-side{grid-template-columns:1fr 1fr}.map-hero{grid-template-columns:1fr}.hero-illustration{display:none}}
@media(max-width:700px){.sidebar{position:fixed;z-index:5;left:-250px;top:0;bottom:0;transition:.25s;box-shadow:15px 0 30px rgba(20,40,70,.1)}.sidebar.open{left:0}.topbar{height:62px;padding:0 18px}.menu-button{display:block;font-size:20px;color:#65748a}.crumb{font-size:11px}.help-button{display:none}.view{padding:30px 18px 55px}.welcome-row,.study-header,.view-heading{align-items:flex-start;flex-direction:column}.welcome-row h1,.view h1{font-size:25px}.level-badge{border-left:0;border-top:1px solid var(--line);padding:12px 0 0;width:100%}.hero-panel{padding:25px 23px;min-height:225px}.hero-panel h2{font-size:23px}.progress-grid{grid-template-columns:1fr}.lower-grid{grid-template-columns:1fr}.section-heading{margin-top:30px}.study-header .session-count{align-self:stretch;text-align:left}.word-card{padding:23px 17px}.word-main h2{font-size:35px}.answer-row{grid-template-columns:1fr}.study-aside{display:block}.mini-stats{margin-top:15px}.chapter-grid{grid-template-columns:1fr 1fr;gap:9px}.chapter-card{padding:14px;min-height:130px}.map-hero{padding:18px}.map-path{height:165px}.map-summary{border-left:0;padding-left:0}.metric-grid{grid-template-columns:1fr 1fr}.bar-chart{gap:9px;padding:0 8px}.settings-side{grid-template-columns:1fr}.setting-section{display:block}.number-settings{margin-top:20px;justify-content:space-between}.list-header{display:none}.list-row{grid-template-columns:1fr auto;gap:9px;padding:16px}.list-row>span{grid-row:2}.list-row button{grid-column:2;grid-row:1/3}.mistake-banner{align-items:flex-start}.banner-score{display:none}}
/* Blue learning-product theme */
:root{--bg:#f7faff;--ink:#172b4d;--muted:#71819a;--line:#e4ebf5;--blue:#2563eb;--blue-dark:#1d4ed8;--green:#159570;--amber:#d99018;--red:#dc5c68;--navy:#173b78;--shadow:0 14px 36px rgba(37,99,235,.08)}
body{background:var(--bg);color:var(--ink)}.sidebar{background:rgba(255,255,255,.92);border-right-color:#e7eef8;backdrop-filter:blur(14px)}.brand-mark{background:var(--blue);box-shadow:0 8px 16px rgba(37,99,235,.22)}.brand-name{color:#163b77}.nav-item{border-radius:10px}.nav-item:hover{background:#f0f6ff;color:var(--blue)}.nav-item.active{background:#eaf2ff;color:var(--blue);box-shadow:inset 3px 0 0 var(--blue)}.streak-card{background:#f2f7ff;border-color:#e2edff}.streak-dots i{background:#cfe0ff}.streak-dots i.today{background:var(--blue)}.avatar{background:#dceaff;color:var(--blue)}
.topbar{background:rgba(255,255,255,.8);border-bottom-color:#e7eef8}.view h1{color:#173b78}.hero-panel{background:linear-gradient(105deg,#eaf3ff,#f4f8ff);border:1px solid #dbe9ff;border-radius:16px;box-shadow:0 12px 30px rgba(37,99,235,.06)}.hero-kicker,.context-label{color:var(--blue)}.hero-panel h2{color:#173b78}.hero-panel p{color:#657e9f}.primary-button{background:var(--blue);border-radius:9px;box-shadow:0 9px 18px rgba(37,99,235,.2)}.primary-button:hover{background:var(--blue-dark)}
.progress-card,.panel,.word-card,.chapter-card,.word-list,.mini-stats{border-color:#e4ebf5;border-radius:12px;box-shadow:0 5px 18px rgba(31,74,135,.035)}.progress-card:hover,.chapter-card.current{border-color:#c5dcff;box-shadow:0 10px 24px rgba(37,99,235,.09)}.card-icon.blue,.blue-tag,.timeline-item.active .timeline-dot{background:#eaf2ff;color:var(--blue)}.section-heading h2,.panel h2{color:#203d6b}.text-button,.mini-button{color:var(--blue)}.status-chip,.trend{background:#e8f8f2;color:var(--green)}
.map-hero{border-color:#e4ebf5;border-radius:14px}.map-path{background:#f1f6ff}.map-line{background:#a9caff}.current-node{background:var(--blue);border-color:#cfe0ff;box-shadow:0 0 0 7px #eaf2ff}.map-copy h2,.word-main h2{color:#173b78}.sound-button{background:#eaf2ff;color:var(--blue)}.context-box{background:#f5f9ff;border-left-color:#7eaff5}.context-box p{color:#304c75}.answer-button:hover{border-color:#b9d3fa;box-shadow:0 10px 22px rgba(37,99,235,.1)}.preview-card{background:linear-gradient(145deg,#173b78,#205bb6);box-shadow:0 12px 25px rgba(23,59,120,.18)}.tip-card{background:#eef6ff;border-color:#d8e9ff}.tip-card span,.tip-card p{color:#52739f}.toast{background:#173b78;box-shadow:0 10px 24px rgba(23,59,120,.2)}
@media(max-width:700px){.sidebar{width:264px;left:-274px}.hero-panel{padding:28px 24px;border-radius:14px}.hero-panel h2{font-size:24px}}
.site-footer{max-width:1190px;margin:0 auto;padding:0 48px 34px;display:flex;align-items:center;justify-content:space-between;gap:24px}.footer-brand{min-width:0}.footer-brand-title{display:flex;align-items:center;gap:9px;color:#173b78;font-size:14px}.footer-brand-title strong{font-size:15px}.version-badge{padding:3px 7px;border:1px solid #cfe0ff;border-radius:999px;background:rgba(234,242,255,.72);color:var(--blue);font-size:10px;font-weight:800}.footer-brand p{margin:4px 0 2px;color:#8392a7;font-size:10px;letter-spacing:.1px}.footer-author{color:#a1adbc;font-size:10px}.footer-links{display:flex;align-items:stretch;justify-content:flex-end;flex-wrap:wrap;gap:9px}.glass-link{display:inline-flex;align-items:center;gap:9px;padding:9px 12px;border:1px solid rgba(177,204,240,.72);border-radius:10px;background:rgba(255,255,255,.55);box-shadow:0 7px 18px rgba(31,74,135,.06);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);color:#41658f;font-size:11px;font-weight:700;text-decoration:none;transition:transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease}.glass-link:hover,.glass-link:focus-visible{background:rgba(255,255,255,.85);border-color:#8eb9ef;box-shadow:0 10px 22px rgba(37,99,235,.12);color:var(--blue);transform:translateY(-2px);outline:none}.glass-link>span:last-child{color:var(--blue);font-size:14px}.glass-link-featured{padding:8px 11px;gap:14px}.glass-link-featured>span:first-child{display:flex;flex-direction:column;gap:1px}.glass-link-featured strong{color:#173b78;font-size:11px}.glass-link-featured small{color:#8090a6;font-size:9px;font-weight:400;white-space:nowrap}
@media(max-width:700px){.site-footer{padding:0 18px 26px;display:block}.footer-links{justify-content:flex-start;margin-top:18px}.glass-link{flex:1 1 auto;justify-content:center}.glass-link-featured{flex-basis:100%;justify-content:space-between}.glass-link-featured small{white-space:normal}}