/* 五組可切換色系 */
:root,[data-theme="morandi"]{--forest:#687970;--deep:#4c5852;--cream:#ebe6df;--paper:#f8f6f2;--coral:#a97970;--ink:#343b38;--muted:#737b77;--line:#d3cdc4;--card1:#faf8f4;--card2:#e8e2da}
[data-theme="forest"]{--forest:#315f52;--deep:#173c33;--cream:#edf1e9;--paper:#fffdf8;--coral:#c7795e;--ink:#24332e;--muted:#69766f;--line:#cbd5cc;--card1:#fffdf8;--card2:#e3ece5}
[data-theme="black"]{--forest:#171717;--deep:#050505;--cream:#252525;--paper:#111;--coral:#d7b46a;--ink:#f3f0e8;--muted:#bbb7ae;--line:#555;--card1:#272727;--card2:#151515}
[data-theme="gentle"]{--forest:#9b746d;--deep:#74534e;--cream:#f6e9e4;--paper:#fffaf7;--coral:#c47f73;--ink:#4d3c39;--muted:#8a7470;--line:#e1cbc5;--card1:#fffaf7;--card2:#f3dfd9}
[data-theme="sunrise"]{--forest:#ad806b;--deep:#8f6554;--cream:#f7eee5;--paper:#fffaf5;--coral:#d39a7f;--ink:#56443a;--muted:#8c776c;--line:#e6d3c6;--card1:#fffaf5;--card2:#f4e4d7}
[data-theme="dream"]{--forest:#82739c;--deep:#625476;--cream:#f0ebf6;--paper:#fcf9ff;--coral:#b495bd;--ink:#463d52;--muted:#7c7088;--line:#d9cee4;--card1:#fdfaff;--card2:#e9e0f2}
.word-card{background:linear-gradient(145deg,var(--card1),var(--card2))}
.hero-mark.heart{width:min(31vw,390px);height:auto;right:6%;bottom:5%;color:rgba(255,255,255,.16);transform:rotate(-5deg)}
.hero-mark.heart svg{display:block;width:100%;overflow:visible}.hero-mark.heart path{fill:none;stroke:currentColor;stroke-width:5;stroke-linecap:round;stroke-linejoin:round}.hero-mark.heart .heart-tail{stroke-width:3}
.hero-mark.heart .heart-small{stroke-width:4;opacity:.78}.hero-mark.heart .heart-large{opacity:.92}
.message{color:var(--muted)}
.nav-actions{display:flex;align-items:center;gap:14px}.nav-actions label{font-size:12px;letter-spacing:.12em}.nav-actions select{border:1px solid rgba(255,255,255,.65);border-radius:999px;background:rgba(255,255,255,.1);color:#fff;padding:8px 30px 8px 13px}.nav-actions select option{color:#222;background:#fff}
.kind{display:grid;place-items:center;width:82px;height:82px;border-radius:50%;background:var(--deep);color:#fff;font-size:40px;line-height:1;margin:0 0 24px;box-shadow:0 8px 20px rgba(0,0,0,.15)}
.word-card h3{margin-top:0}.english{display:none}footer{display:flex;justify-content:center;align-items:center;gap:18px;flex-wrap:wrap}footer strong{color:#fff;font-size:15px}footer span{opacity:.8}
[data-theme="black"] .day{background:rgba(255,255,255,.04)}[data-theme="black"] .day:hover{background:#333}[data-theme="black"] .start-control input{background:#292929;color:#fff;border-color:#666}[data-theme="black"] .word-card:before{border-color:#666}
@media(max-width:620px){.nav-actions label{display:none}.nav-actions{gap:8px}.nav-actions>a{display:none}.nav-actions select{max-width:110px}.kind{width:72px;height:72px;font-size:34px}}