:root{--bg:#f4f1e9;--surface:#fffdf7;--text:#171713;--muted:#716d63;--line:#d9d3c5;--ink:#22695d;--good:#23734d;--bad:#a63d32;--shadow:0 12px 35px #2d291f12;font-family:Inter,ui-sans-serif,system-ui,-apple-system,sans-serif;color:var(--text);background:var(--bg)}@media(prefers-color-scheme:dark){:root{--bg:#171713;--surface:#22221d;--text:#f4f1e9;--muted:#aaa598;--line:#414038;--ink:#6bc0ad;--good:#76cf9d;--bad:#ee8b7e;--shadow:none}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}[hidden]{display:none!important}button,input,select,textarea{font:inherit}button{border:0;border-radius:10px;padding:11px 15px;background:var(--ink);color:var(--bg);font-weight:750;cursor:pointer}.quiet{background:transparent;color:var(--text);border:1px solid var(--line)}header{display:flex;align-items:center;justify-content:space-between;padding:12px max(18px,calc((100% - 1100px)/2));border-bottom:1px solid var(--line);background:var(--surface)}.brand{display:flex;align-items:center;gap:9px;color:inherit;text-decoration:none}.brand span,.mark{display:grid;place-items:center;background:var(--text);color:var(--bg);border-radius:10px}.brand span{width:34px;height:34px}.mark{width:52px;height:52px;font-size:1.5rem}nav{position:sticky;top:0;z-index:4;display:flex;gap:6px;padding:9px max(18px,calc((100% - 1100px)/2));background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}nav button{background:transparent;color:var(--muted)}nav button.active{background:var(--ink);color:var(--bg)}main{width:min(1100px,100%);margin:auto;padding:28px 18px 70px}.login-shell{min-height:100vh;display:grid;place-items:center;padding:20px}.login-card{width:min(420px,100%);padding:30px;border:1px solid var(--line);border-radius:20px;background:var(--surface);box-shadow:var(--shadow)}.login-card h1{font-size:2rem;margin:18px 0 5px}.login-card p{color:var(--muted)}form{display:grid;gap:14px}label{display:grid;gap:6px;font-weight:650}input,select,textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:9px;background:var(--surface);color:var(--text)}textarea{min-height:86px;resize:vertical}.language{margin-top:18px}.header-actions,.actions,.filters,.summary{display:flex;gap:10px;align-items:center}.page-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:22px}.page-head h1{font-size:clamp(2rem,6vw,3.4rem);line-height:1;margin:0}.page-head p{color:var(--muted);margin:7px 0 0}.summary{display:grid;grid-template-columns:repeat(4,1fr);margin-bottom:24px}.card{padding:18px;border:1px solid var(--line);border-radius:16px;background:var(--surface);box-shadow:var(--shadow)}.stat strong{display:block;font-size:1.9rem}.stat span,.muted{color:var(--muted)}.chart-card{overflow-x:auto}.chart{min-width:620px;width:100%;height:auto}.chart text{fill:var(--muted);font-size:11px}.chart .grid{stroke:var(--line);stroke-width:1}.chart .studied{fill:var(--ink)}.chart .new{fill:#d39b3b}.legend{display:flex;gap:18px;margin-top:10px;color:var(--muted)}.dot{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:5px;background:var(--ink)}.dot.new{background:#d39b3b}.filters{display:grid;grid-template-columns:minmax(190px,2fr) repeat(3,minmax(130px,1fr));margin-bottom:14px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:16px;background:var(--surface)}table{width:100%;border-collapse:collapse;white-space:nowrap}th,td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}th{position:sticky;top:0;background:var(--surface);font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}tbody tr:last-child td{border-bottom:0}.word{font-size:1.25rem;font-weight:800}.pinyin{color:var(--ink)}.right{color:var(--good);font-weight:750}.wrong{color:var(--bad);font-weight:750}.empty{text-align:center;color:var(--muted);padding:38px}.suggestion{display:grid;grid-template-columns:1fr auto;gap:10px}.suggestion h3{margin:0}.suggestion p{margin:5px 0;color:var(--muted)}.suggestion-list{display:grid;gap:10px;margin-top:18px}.error{color:var(--bad)}.success{color:var(--good)}@media(max-width:720px){header{padding:10px 14px}.header-actions button{padding:8px}.summary{grid-template-columns:repeat(2,1fr)}.filters{grid-template-columns:1fr 1fr}.filters label:first-child{grid-column:1/-1}.page-head{display:block}.table-wrap{border:0;background:transparent;overflow:visible}table,thead,tbody,tr,td{display:block}thead{display:none}tbody{display:grid;gap:10px}tr{padding:14px;border:1px solid var(--line);border-radius:14px;background:var(--surface)}td{display:flex;justify-content:space-between;gap:16px;padding:5px 0;border:0;white-space:normal}td::before{content:attr(data-label);color:var(--muted);font-size:.78rem;text-transform:uppercase}td:first-child{display:block}.suggestion{grid-template-columns:1fr}}
@media(max-width:720px){.chart{min-width:100%}.chart-card{overflow:hidden}}
.login-story{max-width:34rem;line-height:1.65;color:var(--muted);margin:1rem 0 1.5rem}main.journey-page{width:100%;max-width:none;margin:0;padding:0}.journey-page{--journey-red:#b33b2f;--journey-paper:#ede7db;--journey-night:#16231f}.journey-hero{position:relative;isolation:isolate;min-height:calc(100svh - 112px);display:flex;align-items:center;overflow:hidden;background:var(--journey-paper);color:#171713;border-bottom:1px solid #cfc5b4}.journey-hero:after{content:'中';position:absolute;z-index:-1;right:-.08em;bottom:-.28em;font-family:serif;font-size:min(68vw,720px);line-height:1;color:var(--journey-red);opacity:.1}.journey-inner,.journey-section{width:min(1120px,100%);margin:auto;padding:clamp(64px,10vw,140px) clamp(22px,6vw,72px)}.journey-kicker{margin:0 0 28px;font-size:.75rem;font-weight:850;letter-spacing:.2em;text-transform:uppercase}.journey-hero h1{max-width:960px;margin:0;font-family:Georgia,'Noto Serif SC',serif;font-size:clamp(3.2rem,9vw,7.5rem);font-weight:500;line-height:.92;letter-spacing:-.055em}.journey-hero h1 strong{color:var(--journey-red);font-weight:500}.hero-explain{max-width:620px;margin:34px 0 52px;font-family:Georgia,'Noto Serif SC',serif;font-size:clamp(1.15rem,2.2vw,1.55rem);line-height:1.55}.countdown{display:flex;align-items:baseline;gap:14px;margin-bottom:50px}.countdown strong{font-family:Georgia,serif;font-size:clamp(3rem,8vw,6rem);font-weight:400;line-height:.8}.countdown span{font-size:1rem}.route{position:relative;display:grid;grid-template-columns:1fr 1fr;max-width:760px;padding-top:22px;font-weight:800}.route:before{content:'';position:absolute;left:0;right:0;top:0;height:2px;background:#171713}.route:after,.route i{content:'';position:absolute;top:-6px;width:14px;height:14px;border-radius:50%;background:var(--journey-red)}.route:after{right:0}.route i{left:0}.route span:last-child{text-align:right}.story-so-far h2,.activity-stage h2,.word-stage h2,.destination-stage h2{max-width:880px;margin:0 0 26px;font-family:Georgia,'Noto Serif SC',serif;font-size:clamp(2.8rem,7vw,6rem);font-weight:500;line-height:1;letter-spacing:-.045em}.section-intro{max-width:680px;margin:0;font-size:clamp(1.05rem,2vw,1.35rem);line-height:1.65}.story-numbers{display:grid;grid-template-columns:repeat(3,1fr);margin-top:90px;border-top:1px solid var(--text);border-bottom:1px solid var(--text)}.story-numbers>div{display:flex;min-height:260px;flex-direction:column;justify-content:space-between;padding:28px 26px 30px 0;border-right:1px solid var(--text)}.story-numbers>div+div{padding-left:26px}.story-numbers>div:last-child{border-right:0}.story-numbers strong{font-family:Georgia,serif;font-size:clamp(3.4rem,8vw,7rem);font-weight:400;line-height:1}.story-numbers span{max-width:190px;line-height:1.4;color:var(--muted)}.activity-stage{background:var(--journey-night);color:#f5efe4}.activity-stage .journey-kicker,.activity-stage .section-intro,.activity-stage .legend{color:#c8c1b5}.activity-stage .chart{width:100%;min-width:0;margin-top:70px}.activity-stage .chart text{fill:#a8a398}.activity-stage .chart .grid{stroke:#59615d}.activity-stage .chart .studied{fill:#e7dfcf}.activity-stage .chart .new{fill:#d8614f}.activity-stage .dot{background:#e7dfcf}.activity-stage .dot.new{background:#d8614f}.word-stage{min-height:90svh}.word-river{display:flex;flex-wrap:wrap;align-items:baseline;gap:.06em .28em;margin:80px 0;font-family:Georgia,'Noto Serif SC',serif;line-height:1.05}.word-river span{font-size:clamp(2.3rem,6.5vw,6.2rem);cursor:help}.word-river span:nth-child(4n+1){color:var(--journey-red)}.word-river span:nth-child(5n){font-size:clamp(1.5rem,4vw,3.5rem);color:var(--muted)}#explore-words{border-radius:0;padding:14px 0;background:transparent;color:var(--text);border-bottom:2px solid var(--text)}.destination-stage{background:var(--journey-red);color:#fff8ed}.destination-stage .journey-section{display:grid;grid-template-columns:minmax(180px,.5fr) 1.5fr;align-items:center;gap:clamp(30px,8vw,100px)}.destination-stage h2{font-size:clamp(4rem,10vw,8.5rem)}.destination-stage p:not(.date-mark){max-width:650px;font-size:clamp(1.15rem,2.2vw,1.5rem);line-height:1.6}.date-mark{margin:0;font-family:Georgia,serif;font-size:clamp(8rem,22vw,17rem);line-height:.55}.date-mark small{font-size:.23em;letter-spacing:.15em}@media(prefers-color-scheme:dark){.journey-hero{background:#d8cfbe}.journey-page{--journey-red:#c64c3f}}@media(max-width:720px){.journey-hero{min-height:calc(100svh - 104px)}.journey-inner,.journey-section{padding:68px 22px}.journey-hero h1{font-size:clamp(3.1rem,16vw,5.2rem)}.hero-explain{margin:28px 0 42px}.story-numbers{grid-template-columns:1fr;margin-top:55px}.story-numbers>div{min-height:170px;padding:24px 0;border-right:0;border-bottom:1px solid var(--text)}.story-numbers>div+div{padding-left:0}.story-numbers>div:last-child{border-bottom:0}.activity-stage .chart{margin-top:40px}.word-river{margin:50px 0}.destination-stage .journey-section{grid-template-columns:1fr}.date-mark{font-size:9rem}.destination-stage h2{font-size:4.2rem}}
nav{overflow-x:auto}nav button{flex:0 0 auto}