:root{--accent:#0E7C66;--accent-deep:#0A5C4C;--text:#1B2B27;--mut:#52695F;--bg:#F5FAF8;
--card:#FFFFFF;--border:#D9EAE4;--soft:#E2F3ED}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 "Segoe UI",system-ui,-apple-system,sans-serif;
min-height:100vh;display:flex;flex-direction:column}
body>*{min-width:0;width:100%}
img{max-width:100%}
a{color:var(--accent-deep)}
h1,h2,h3{line-height:1.25;color:var(--text);overflow-wrap:anywhere}
h2{margin-top:2em}
.topnav{position:sticky;top:0;z-index:40;background:rgba(245,250,248,.94);backdrop-filter:blur(8px);
border-bottom:1px solid var(--border)}
.navin{max-width:1120px;margin:0 auto;padding:10px 20px;display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:1.06rem;color:var(--text);
text-decoration:none;white-space:nowrap;flex-shrink:0}
.nav-links{display:flex;gap:4px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;margin-left:auto}
.nav-links::-webkit-scrollbar{display:none}
.nav-links a{color:var(--text);text-decoration:none;font-size:.92rem;padding:7px 11px;border-radius:9px;
white-space:nowrap;transition:background .15s}
.nav-links a:hover{background:var(--soft)}
.nav-links a:active{transform:scale(.97)}
.nav-links a:focus-visible,.brand:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.hero{max-width:1120px;margin:0 auto;padding:46px 20px 10px;position:relative}
.hero-in{display:grid;grid-template-columns:1.08fr .92fr;gap:30px;align-items:center}
.hero.slim{padding:40px 20px 4px}
.hero.slim .hero-in{grid-template-columns:1.15fr .85fr;gap:26px;align-items:center}
.hero.slim .hero-art svg{width:min(100%,300px)}
.kicker{display:inline-block;background:var(--soft);color:var(--accent-deep);font-size:.8rem;font-weight:700;
padding:4px 12px;border-radius:999px;letter-spacing:.04em;text-transform:uppercase}
.hero h1{font-size:clamp(1.9rem,4.2vw,2.9rem);margin:.5em 0 .35em}
.hero .sub{font-size:1.06rem;color:var(--mut);margin:0 0 1.2em;max-width:34em}
.hero-art{display:flex;justify-content:center}
.hero-art svg{width:min(100%,470px);height:auto}
.hero-wm{position:absolute;right:6px;top:0;width:min(46%,300px);opacity:.42;pointer-events:none}
.hero-wm svg{width:100%;height:auto}
@media(max-width:840px){.hero-in{grid-template-columns:1fr}
.hero{padding-top:18px}
.hero.slim{padding-top:18px}
.hero h1{margin:.4em 0 .3em}
.hero .sub{font-size:.99rem;margin:0 0 .9em}
.hero-art{position:absolute;right:0;top:0;width:min(62%,260px);opacity:.22;pointer-events:none}
.hero-wm{display:none}}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.tool{background:var(--card);border:1px solid var(--border);border-radius:20px;box-shadow:0 10px 30px rgba(14,124,102,.08);
max-width:760px;margin:18px auto 8px;padding:26px 26px 18px}
.tlabel2{display:block;font-size:.86rem;font-weight:700;color:var(--mut);margin-bottom:6px}
.tlabel2 .hint{font-weight:400;font-size:.8rem}
.tool textarea{width:100%;padding:13px 15px;font-size:1rem;border:2px solid var(--border);border-radius:12px;
background:#FBFEFD;color:var(--text);font-family:inherit;line-height:1.5;resize:vertical;transition:border-color .15s}
.tool textarea:hover{border-color:#A9D3C8}
.tool textarea:focus{outline:none;border-color:var(--accent)}
.tool input[type=number]{width:100px;padding:10px 12px;font-size:1.05rem;border:2px solid var(--border);
border-radius:12px;background:#FBFEFD;color:var(--text)}
.tool input[type=number]:focus{outline:none;border-color:var(--accent)}
.orow{display:flex;gap:18px;align-items:flex-end;flex-wrap:wrap;margin-top:14px}
.octl{flex:0 1 auto}
.opt{display:flex;align-items:center;gap:7px;font-size:.92rem;font-weight:600;color:var(--text);
cursor:pointer;padding-bottom:10px}
.opt input{width:18px;height:18px;accent-color:var(--accent)}
.seg{display:inline-flex;border:2px solid var(--border);border-radius:12px;overflow:hidden}
.segbtn{background:#fff;border:none;padding:9px 14px;font-size:.92rem;font-weight:600;color:var(--mut);
cursor:pointer;transition:background .15s}
.segbtn:hover{background:var(--soft)}
.segbtn.active{background:var(--accent);color:#fff}
.segbtn:focus-visible{outline:2px solid var(--accent-deep);outline-offset:-3px}
.tactions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.tnote{font-size:.83rem;color:var(--mut);margin:12px 0 0}
.presets{margin:0 0 6px}
#startBtn{min-width:130px}
.chipbtn{background:#fff;border:2px solid var(--border);color:var(--accent-deep);border-radius:999px;
padding:8px 16px;font-weight:700;font-size:.9rem;cursor:pointer;transition:border-color .15s}
.chipbtn:hover{border-color:var(--accent)}
.chipbtn.active{background:var(--accent);border-color:var(--accent);color:#fff}
.chipbtn:focus-visible{outline:2px solid var(--accent-deep);outline-offset:2px}
.btn{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,#118A72,#0E7C66);
color:#fff;border:none;border-radius:12px;padding:12px 20px;font-size:.98rem;font-weight:700;cursor:pointer;
text-decoration:none;transition:box-shadow .15s,filter .15s}
.btn:hover{box-shadow:0 6px 16px rgba(14,124,102,.3);filter:brightness(1.05)}
.btn:active{transform:scale(.98)}
.btn:focus-visible{outline:2px solid var(--accent-deep);outline-offset:2px}
.btn.ghost{background:#fff;color:var(--accent-deep);border:2px solid var(--border)}
.btn.ghost:hover{border-color:var(--accent);box-shadow:none;filter:none}
.copy-btn{position:relative}
.copy-btn .c-done{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
opacity:0;transform:translateY(4px);transition:opacity .18s,transform .18s;background:inherit;border-radius:inherit;color:inherit}
.copy-btn .c-idle{transition:opacity .18s}
.copy-btn.done .c-idle{opacity:0}
.copy-btn.done .c-done{opacity:1;transform:translateY(0)}
.result{background:var(--card);border:1px solid var(--border);border-radius:20px;max-width:760px;
margin:14px auto 8px;padding:24px 26px;box-shadow:0 10px 30px rgba(14,124,102,.08)}
.rhead{display:flex;gap:20px;align-items:center;flex-wrap:wrap}
.rmeta{flex:1;min-width:200px}
.rpairs{font-size:.92rem;color:var(--mut);font-weight:600}
.rtier{margin:.25em 0;font-size:1.5rem;color:var(--accent-deep)}
.rblurb{margin:.2em 0 0;color:var(--mut)}
.ractions{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.pickball{width:96px;height:96px;flex:0 0 auto;border-radius:50%;background:var(--accent);color:#fff;
display:flex;align-items:center;justify-content:center;font-size:2rem;font-weight:800}
.goutput{max-width:900px;margin:14px auto;padding:0 20px;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}
.gcard{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:16px 18px;
box-shadow:0 6px 18px rgba(14,124,102,.07)}
.gcard h3{margin:0 0 8px;font-size:1.05rem;color:var(--accent-deep)}
.gcard ul{margin:0;padding:0 0 0 1.2em}
.gcard li{margin:3px 0;font-size:.98rem}
.saverow{display:flex;align-items:center;gap:12px;margin-top:14px;flex-wrap:wrap}
.saverow .hint{font-size:.8rem;color:var(--mut)}
.btn.sm{padding:8px 14px;font-size:.88rem}
.listsbar{background:var(--card);border:1px solid var(--border);border-radius:16px;max-width:760px;
margin:12px auto 6px;padding:14px 20px}
.lists-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.lists-head b{font-size:.92rem}
.linkbtn{background:none;border:none;color:var(--accent-deep);font-size:.85rem;cursor:pointer;
padding:8px 10px;border-radius:8px;text-decoration:underline}
.linkbtn:hover{background:var(--soft)}
.linkbtn:focus-visible{outline:2px solid var(--accent);outline-offset:1px}
.lists-chips{display:flex;gap:8px;flex-wrap:wrap}
.listchip{display:inline-flex;align-items:center;gap:6px;background:var(--soft);border:2px solid transparent;
border-radius:999px;padding:6px 8px 6px 14px;font-size:.88rem;font-weight:600;color:var(--accent-deep);cursor:pointer}
.listchip:hover{border-color:var(--accent)}
.listchip:focus-visible{outline:2px solid var(--accent-deep);outline-offset:2px}
.listchip .chipx{background:none;border:none;color:var(--mut);font-size:1rem;cursor:pointer;padding:0 4px;line-height:1}
.listchip .chipx:hover{color:var(--accent-deep)}
.clockwrap{position:relative;width:240px;margin:18px auto}
.clock{width:100%;height:auto;display:block}
.clocknum{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
font-size:2.6rem;font-weight:800;color:var(--accent-deep);font-variant-numeric:tabular-nums}
.wheelwrap{position:relative;width:min(420px,100%);margin:18px auto 8px}
#wheelCanvas{width:100%;height:auto;display:block}
.wheelptr{position:absolute;top:-6px;left:50%;transform:translateX(-50%);width:0;height:0;
border-left:14px solid transparent;border-right:14px solid transparent;border-top:22px solid var(--accent-deep)}
/* Present 模式：藏导航/页脚/内容区与工具卡内的"输入件"（textarea/标签/选项行/说明），
   保留交互主体——wheel 的转盘、timer 的时钟、picker 的按钮都在 .tool 内，藏 .tool=全屏白屏（2026-10-13 用户实测） */
.presenting .topnav,.presenting footer.site,.presenting .listsbar,.presenting .prose,
.presenting .faq,.presenting .related,.presenting .hero,.presenting .crumbs,
.presenting .tool textarea,.presenting .tool .tlabel2,.presenting .tool .orow,
.presenting .tool .saverow,.presenting .tool .tnote,.presenting .picked-hint{display:none!important}
body.presenting{background:#fff}
.presenting .tool{border:none;box-shadow:none;max-width:1100px;margin:24px auto}
.presenting #output{max-width:1100px;margin:40px auto;grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.presenting .gcard h3{font-size:2rem}
.presenting .gcard li{font-size:1.6rem;margin:8px 0}
.presenting .result{max-width:1100px;margin:40px auto;border:none;box-shadow:none}
.presenting #pickedName{font-size:4rem}
.presenting .pickball{width:180px;height:180px;font-size:4rem}
.presenting .wheelwrap{width:min(72vh,680px);margin:10px auto}
.presenting .clockwrap{width:min(52vh,420px)}
@media print{.topnav,.tool,.listsbar,.hero,.prose,.faq,.related,.crumbs,footer.site,.result,.nf-wrap{display:none!important}
.goutput{display:block;max-width:100%;margin:20px}
.gcard{box-shadow:none;border:1.5px solid #333;page-break-inside:avoid;margin-bottom:12px}
.gcard h3{font-size:1.4rem}
body{background:#fff}
.prose-pf{display:block!important}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto}}
.prose{max-width:840px;margin:34px auto;padding:16px 20px 0}
.prose h1{font-size:clamp(1.8rem,3.5vw,2.3rem)}
.prose p{color:#2E4A42}
.prose figure{margin:26px 0}
.prose figcaption{font-size:.86rem;color:var(--mut);text-align:center;margin-top:8px}
.related{max-width:840px;margin:10px auto 40px;padding:0 20px}
.related h2{font-size:1.2rem}
.rgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.rcard{display:flex;flex-direction:column;gap:6px;background:var(--card);border:1px solid var(--border);
border-radius:14px;padding:16px;text-decoration:none;color:var(--text);transition:border-color .15s,box-shadow .15s}
.rcard b{font-size:.97rem}
.rcard span{font-size:.85rem;color:var(--accent-deep);font-weight:600}
.rcard:hover{border-color:var(--accent);box-shadow:0 6px 14px rgba(14,124,102,.14)}
.rcard:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media(max-width:700px){.rgrid{grid-template-columns:1fr}}
.faq{max-width:840px;margin:10px auto 46px;padding:0 20px}
.faq h2{font-size:1.2rem}
.qa{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:14px 18px;margin-bottom:10px}
.qa h3{margin:0 0 6px;font-size:1rem}
.qa p{margin:0;color:#2E4A42;font-size:.95rem}
.crumbs{max-width:840px;margin:22px auto 0;padding:0 20px;font-size:.86rem;color:var(--mut)}
.c-sep{margin:0 7px}
.nf-wrap{max-width:640px;margin:70px auto;padding:0 20px;text-align:center}
.nf-cta{margin:26px 0}
.chips{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.chip{background:#fff;border:2px solid var(--border);color:var(--accent-deep);border-radius:999px;
padding:8px 16px;text-decoration:none;font-weight:600;font-size:.9rem}
.chip:hover{border-color:var(--accent)}
.chip:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
footer.site{margin-top:auto;background:#122B24;color:#D7EFE8;padding:38px 20px 26px}
.foot-grid{max-width:1120px;margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px}
.foot-brand{display:flex;align-items:center;gap:8px;margin-bottom:10px}
.foot-grid p{font-size:.9rem;color:#A9CFC5;margin:4px 0}
.foot-grid b{display:block;margin-bottom:8px;color:#fff;font-size:.95rem}
.foot-grid a{display:block;color:#D7EFE8;text-decoration:none;font-size:.9rem;padding:3px 0}
.foot-grid a:hover{color:#fff;text-decoration:underline}
.foot-grid a:focus-visible{outline:2px solid #8FD4C6;outline-offset:1px}
.foot-note{max-width:1120px;margin:26px auto 0;padding-top:16px;border-top:1px solid #2C4A40}
.foot-note p{font-size:.82rem;color:#93BFB3;margin:0;max-width:800px}
@media(max-width:760px){.foot-grid{grid-template-columns:1fr 1fr}.foot-grid>div:first-child{grid-column:1/-1}}
@media(max-width:460px){.foot-grid{grid-template-columns:1fr}}
.tbl-wrap{overflow-x:auto;margin:0 auto;max-width:100%}
.tbl-wrap table{min-width:560px;width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden}
.tbl-wrap th{white-space:nowrap}
.tbl-wrap th,.tbl-wrap td{padding:10px 14px;border:1px solid var(--border);text-align:left;font-size:.93rem}
.tbl-wrap th{background:var(--soft);color:var(--accent-deep)}
.ig{margin:26px 0;background:#fff;border:1px solid #E5E7EB;border-radius:16px;padding:14px;max-width:100%}.ig{overflow-x:auto}.ig img{min-width:560px}.ig img{width:100%;height:auto;display:block}.ig figcaption{text-align:center;font-size:13px;color:#6B7280;margin-top:8px}