:root{--ink:#202420;--muted:#68716d;--line:#e5e8e6;--jp:#214f77;--jp-soft:#edf3f7;--jp-mid:#d9e5ed;--learn:#2f776c;--travel:#b27b00;--tool:#343b3a;--footer:#292a25;--serif:"Noto Serif TC","Songti TC","PMingLiU",serif;--sans:"Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;--max:1120px}
*{box-sizing:border-box}html{font-family:var(--sans);color:var(--ink);background:#fff;overflow-x:hidden}body{margin:0;line-height:1.7;background:#fff;overflow-x:clip}a{color:inherit}button,input,select{font:inherit}.shell{width:min(var(--max),calc(100% - 72px));margin-inline:auto}.skip{position:fixed;left:12px;top:10px;z-index:1000;transform:translateY(-150%);background:#fff;border:1px solid var(--ink);padding:8px 12px;text-decoration:none;font-size:12px}.skip:focus{transform:none}
.site-head{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.head-in{min-height:72px;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}.mark-wrap{position:relative;width:42px;height:42px;display:grid;place-items:start;flex:0 0 42px}.mark-shadow{position:absolute;z-index:0;left:0;top:0;width:36px;height:36px;display:grid;grid-template-rows:repeat(4,1fr);overflow:hidden;opacity:0;transition:transform .18s ease,opacity .18s ease}.mark-shadow i:nth-child(1){background:rgba(33,79,119,.16)}.mark-shadow i:nth-child(2){background:rgba(47,119,108,.16)}.mark-shadow i:nth-child(3){background:rgba(178,123,0,.16)}.mark-shadow i:nth-child(4){background:rgba(52,59,58,.14)}.mark{position:relative;z-index:1;width:36px;height:36px;display:grid;place-items:center;border:1px solid var(--ink);font-family:var(--serif);font-size:19px;background:#fff;transition:transform .18s ease}.brand:hover .mark{transform:translate(-2px,-2px)}.brand:hover .mark-shadow{opacity:1;transform:translate(5px,5px)}.brand-copy strong{display:block;font-family:var(--serif);font-size:16px;line-height:1.25}.brand-copy small{display:block;margin-top:3px;color:var(--muted);font-size:10px;white-space:nowrap}.nav{margin-left:auto;display:flex;gap:26px;align-items:center}.nav a{--c:#555f5c;position:relative;color:var(--c);font-size:12px;font-weight:800;text-decoration:none;padding:8px 0}.nav .jp{--c:var(--jp)}.nav .learn{--c:var(--learn)}.nav .travel{--c:var(--travel)}.nav .tool{--c:var(--tool)}.nav a::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:1px;background:currentColor;transform:scaleX(0);transition:transform .18s ease}.nav a:hover::after,.nav a[aria-current="page"]::after{transform:scaleX(1)}
.grammar-hero{border-bottom:1px solid var(--line);background:linear-gradient(90deg,#fff 0%,#fff 70%,var(--jp-soft) 100%)}.hero-in{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:70px;padding:58px 0 50px}.crumb{margin:0 0 14px;color:var(--jp);font-size:10px;font-weight:850;letter-spacing:.12em}.hero-copy h1{margin:0;font-family:var(--serif);font-size:58px;line-height:1.08;font-weight:620;letter-spacing:-.02em}.hero-copy p{max-width:38em;margin:15px 0 0;color:#4d5853;font-size:14px}.search-block{margin-top:26px;max-width:640px}.search-label{display:flex;justify-content:space-between;gap:16px;margin-bottom:7px;color:var(--jp);font-size:9px;font-weight:850;letter-spacing:.12em}.search-box{display:grid;grid-template-columns:minmax(0,1fr) auto;border-top:1px solid var(--jp);border-bottom:1px solid var(--jp);background:#fff}.search-box input{border:0;outline:0;padding:13px 0;background:transparent;font-size:14px;min-width:0}.search-box button{border:0;border-left:1px solid var(--jp-mid);background:transparent;color:var(--jp);padding:0 15px;font-size:11px;font-weight:850;cursor:pointer}.search-hints{display:flex;flex-wrap:wrap;gap:0 16px;margin-top:10px}.search-hints button{border:0;background:none;padding:4px 0;color:#66726c;font-size:10.5px;cursor:pointer}.search-hints button:hover{color:var(--jp);text-decoration:underline}.hero-side{align-self:end;border-top:1px solid var(--jp)}.hero-stat{padding:15px 0;border-bottom:1px solid var(--jp-mid)}.hero-stat strong{display:block;font-family:Georgia,serif;font-size:34px;color:var(--jp);line-height:1}.hero-stat small{display:block;margin-top:5px;color:var(--muted);font-size:10px}.hero-links a{display:flex;justify-content:space-between;gap:18px;padding:11px 0;border-bottom:1px solid var(--jp-mid);font-family:var(--serif);font-size:13px;text-decoration:none}.hero-links a:hover{color:var(--jp)}
.section{padding:44px 0}.section-title{display:flex;align-items:end;justify-content:space-between;gap:20px;padding-bottom:11px;border-bottom:1px solid var(--ink)}.section-title h2{margin:0;font-family:var(--serif);font-size:24px;font-weight:650}.section-title p{margin:0;color:var(--muted);font-size:11px}.compare-grid{display:grid;grid-template-columns:repeat(5,1fr);border-bottom:1px solid var(--line)}.compare-link{min-height:125px;padding:20px 17px 18px;border-right:1px solid var(--line);text-decoration:none;display:flex;flex-direction:column}.compare-link:first-child{padding-left:0}.compare-link:last-child{border-right:0}.compare-link small{color:var(--jp);font-size:9px;font-weight:850}.compare-link strong{margin-top:13px;font-family:var(--serif);font-size:18px;line-height:1.35;font-weight:650}.compare-link span{margin-top:auto;color:#78837e;font-size:10px}.compare-link:hover strong{color:var(--jp)}
.index-tools{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:20px;align-items:end;margin-top:22px;padding-bottom:10px;border-bottom:1px solid var(--line)}.result-count{color:var(--muted);font-size:11px}.sort-wrap{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:10px}.sort-wrap select{border:0;border-bottom:1px solid var(--line);background:#fff;color:var(--ink);padding:4px 20px 4px 2px;outline:none}.grammar-list{border-bottom:1px solid var(--line)}.grammar-row{display:grid;grid-template-columns:52px minmax(0,1fr) 92px 22px;gap:16px;align-items:center;padding:17px 0;border-top:1px solid var(--line);text-decoration:none}.grammar-row[hidden]{display:none!important}.grammar-no{color:#99a39e;font-family:Georgia,serif;font-size:10px}.grammar-main strong{display:block;font-family:var(--serif);font-size:17px;line-height:1.35;font-weight:650}.grammar-main small{display:block;margin-top:3px;color:var(--muted);font-size:11px;line-height:1.5}.grammar-row time{color:#8b9691;font-size:9px}.grammar-arrow{color:var(--jp);text-align:right;transition:transform .16s ease}.grammar-row:hover .grammar-main strong{color:var(--jp)}.grammar-row:hover .grammar-arrow{transform:translateX(3px)}.load-wrap{display:flex;justify-content:center;padding-top:22px}.load-more{border:1px solid var(--jp);background:#fff;color:var(--jp);padding:10px 18px;font-size:11px;font-weight:850;cursor:pointer}.load-more:hover{background:var(--jp-soft)}.empty{display:none;padding:35px 0;color:var(--muted);font-size:12px;text-align:center}
.footer{margin-top:24px;background:var(--footer);color:#f2f2ed;padding:34px 0 40px}.footer-in{display:flex;justify-content:space-between;gap:30px}.footer-links{display:flex;flex-wrap:wrap;gap:10px 18px}.footer a{color:inherit;font-size:10.5px;text-decoration:none}.footer a:hover{text-decoration:underline}.footer p{margin:0;color:#b9bbb4;font-size:10.5px}
.grammar-page-nav{display:flex;align-items:center;justify-content:center;gap:7px;flex-wrap:wrap;margin-top:20px;padding-top:18px;border-top:1px solid var(--line);font-size:10px;color:var(--muted)}.grammar-page-nav>span{margin-right:4px;font-weight:800;letter-spacing:.06em}.grammar-page-nav a{display:inline-flex;min-width:32px;height:32px;align-items:center;justify-content:center;border:1px solid var(--line);background:#fff;color:var(--ink);text-decoration:none}.grammar-page-nav a:hover,.grammar-page-nav a:focus-visible{border-color:var(--jp);color:var(--jp);outline:none}.grammar-page-nav a[aria-current="page"]{border-color:var(--jp);background:var(--jp);color:#fff}
@media(max-width:1000px){.shell{width:calc(100% - 48px)}.hero-in{grid-template-columns:minmax(0,1fr) 260px;gap:38px;padding:48px 0 43px}.hero-copy h1{font-size:48px}.compare-grid{grid-template-columns:repeat(3,1fr)}.compare-link:nth-child(3){border-right:0}.compare-link:nth-child(n+4){border-top:1px solid var(--line)}.grammar-row{grid-template-columns:46px minmax(0,1fr) 80px 20px}}
@media(max-width:720px){.shell{width:calc(100% - 28px)}.site-head{position:relative}.head-in{min-height:auto;display:grid;grid-template-columns:1fr;padding:11px 0 0;gap:8px}.brand-copy strong{font-size:14.5px}.brand-copy small{font-size:8.5px}.nav{width:calc(100% + 28px);margin-left:-14px;display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.nav a{min-height:48px;display:flex;align-items:center;justify-content:center;border-right:1px solid var(--line);font-size:10.5px;padding:0 4px}.nav a:last-child{border-right:0}.nav a[aria-current="page"]{background:rgba(33,79,119,.055)}.nav a::after{left:10px;right:10px;bottom:0;height:2px}.grammar-hero{background:linear-gradient(180deg,#fff 0%,#fff 78%,var(--jp-soft) 100%)}.hero-in{display:block;padding:31px 0 30px}.hero-copy h1{font-size:38px}.hero-copy p{font-size:12.5px;line-height:1.75}.search-block{margin-top:20px}.search-box input{font-size:12.5px}.hero-side{margin-top:26px}.hero-stat{display:flex;align-items:baseline;gap:8px}.hero-stat strong{font-size:28px}.hero-stat small{margin-top:0}.section{padding:32px 0}.section-title{display:block}.section-title h2{font-size:21px}.section-title p{margin-top:4px}.compare-grid{grid-template-columns:1fr}.compare-link{min-height:0;padding:15px 0;border-right:0;border-top:1px solid var(--line)}.compare-link:first-child{border-top:0}.compare-link strong{margin-top:5px;font-size:16px}.compare-link span{margin-top:6px}.index-tools{display:flex;justify-content:space-between;gap:12px;margin-top:17px}.grammar-row{grid-template-columns:36px minmax(0,1fr) 18px;gap:7px 10px;padding:15px 0}.grammar-no{grid-column:1;grid-row:1}.grammar-main{grid-column:2;grid-row:1/3}.grammar-main strong{font-size:15px}.grammar-main small{font-size:10.5px}.grammar-row time{grid-column:1;grid-row:2;font-size:8px}.grammar-arrow{grid-column:3;grid-row:1/3;align-self:center}.footer{padding:28px 0 32px}.footer-in{display:block}.footer p{margin-top:10px}}
@media(max-width:390px){.shell{width:calc(100% - 24px)}.nav{width:calc(100% + 24px);margin-left:-12px}.hero-copy h1{font-size:35px}.search-hints{gap:0 12px}.grammar-main strong{font-size:14.5px}}

/* Final responsive QA polish */
.section-title h2,
.grammar-main strong,
.vocab-main strong,
.practice-main strong,
.reading-body h2,
.track-name strong,
.method h3 { text-wrap: balance; }
.hero-copy p,
.section-title p,
.grammar-main small,
.vocab-main small,
.practice-main small,
.reading-body p,
.track-desc,
.method p { text-wrap: pretty; }
@media (max-width:720px){
  .hero-copy h1{ text-wrap:balance; }
  .grammar-main,.vocab-main,.practice-main,.reading-body{min-width:0}
}

/* Beginner-first grammar finder */
.beginner-start{display:grid;grid-template-columns:220px minmax(0,1fr);gap:28px;padding:22px 0;border-bottom:1px solid var(--line)}
.beginner-intro{padding-right:20px;border-right:1px solid var(--line)}
.beginner-intro small{display:block;color:var(--jp);font-size:9px;font-weight:850;letter-spacing:.1em}
.beginner-intro strong{display:block;margin-top:7px;font-family:var(--serif);font-size:20px;font-weight:650}
.beginner-intro span{display:block;margin-top:7px;color:var(--muted);font-size:10.5px;line-height:1.65}
.beginner-actions{display:grid;grid-template-columns:repeat(4,1fr);gap:0 18px}
.beginner-actions button,.meaning-card,.family-grid button{appearance:none;border:0;background:#fff;color:var(--ink);text-align:left;cursor:pointer}
.beginner-actions button{padding:8px 0 12px;border-bottom:1px solid var(--line)}
.beginner-actions button strong{display:block;font-family:var(--serif);font-size:15px;font-weight:650}
.beginner-actions button span{display:block;margin-top:4px;color:var(--muted);font-size:9.5px}
.beginner-actions button:hover strong,.beginner-actions button.is-active strong{color:var(--jp)}
.meaning-grid{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--line)}
.meaning-card{position:relative;min-height:112px;padding:18px 18px 16px;border-right:1px solid var(--line);border-top:1px solid var(--line)}
.meaning-card:nth-child(4n){border-right:0}.meaning-card strong{display:block;font-family:var(--serif);font-size:16px;font-weight:650}.meaning-card span{display:block;margin-top:6px;color:var(--muted);font-size:10px}.meaning-card small{position:absolute;left:18px;bottom:13px;color:#8c9792;font-size:8.5px}.meaning-card:hover,.meaning-card.is-active{background:var(--jp-soft)}.meaning-card:hover strong,.meaning-card.is-active strong{color:var(--jp)}
.family-grid{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--line)}
.family-grid button{min-height:94px;padding:17px 18px;border-right:1px solid var(--line);border-top:1px solid var(--line)}
.family-grid button:nth-child(4n){border-right:0}.family-grid button strong{display:block;color:var(--jp);font-family:var(--serif);font-size:16px;font-weight:650}.family-grid button span{display:block;margin-top:6px;color:var(--muted);font-size:9.5px;line-height:1.55}.family-grid button:hover{background:var(--jp-soft)}
.reset-filters{border:0;border-bottom:1px solid var(--jp);background:#fff;color:var(--jp);padding:4px 0;font-size:10px;font-weight:850;cursor:pointer}.reset-filters:hover{border-bottom-width:2px}
.grammar-row{grid-template-columns:112px minmax(0,1fr) 22px;gap:18px}
.grammar-kind{color:var(--jp);font-size:9px;font-weight:850;letter-spacing:.02em}
.grammar-row:hover .grammar-kind{color:var(--ink)}
.grammar-no,.grammar-row time{display:none!important}
@media(max-width:1000px){.beginner-start{grid-template-columns:190px minmax(0,1fr)}.beginner-actions{grid-template-columns:repeat(2,1fr);gap:10px 18px}.meaning-grid,.family-grid{grid-template-columns:repeat(3,1fr)}.meaning-card:nth-child(4n),.family-grid button:nth-child(4n){border-right:1px solid var(--line)}.meaning-card:nth-child(3n),.family-grid button:nth-child(3n){border-right:0}.grammar-row{grid-template-columns:100px minmax(0,1fr) 20px}}
@media(max-width:720px){.beginner-start{grid-template-columns:1fr;gap:14px}.beginner-intro{padding-right:0;padding-bottom:14px;border-right:0;border-bottom:1px solid var(--line)}.beginner-actions{grid-template-columns:repeat(2,1fr)}.meaning-grid,.family-grid{grid-template-columns:repeat(2,1fr)}.meaning-card:nth-child(3n),.family-grid button:nth-child(3n){border-right:1px solid var(--line)}.meaning-card:nth-child(2n),.family-grid button:nth-child(2n){border-right:0}.meaning-card{min-height:105px;padding:15px 14px}.meaning-card small{left:14px}.family-grid button{min-height:86px;padding:14px}.index-tools{align-items:center}.grammar-row{grid-template-columns:82px minmax(0,1fr) 18px;gap:8px 10px}.grammar-kind{grid-column:1;grid-row:1;font-size:8.5px}.grammar-main{grid-column:2;grid-row:1}.grammar-arrow{grid-column:3;grid-row:1}.grammar-main strong{font-size:14.5px}.grammar-main small{font-size:10px}}
@media(max-width:390px){.beginner-actions{grid-template-columns:1fr}.meaning-grid,.family-grid{grid-template-columns:1fr}.meaning-card,.family-grid button{border-right:0!important}.meaning-card{min-height:92px}.grammar-row{grid-template-columns:74px minmax(0,1fr) 16px}.grammar-kind{font-size:8px}}
.family-grid button.is-active{background:var(--jp-soft)}
.family-grid button.is-active strong{color:var(--ink)}