/* huilv · 青绿工具风 · 前缀 hl- · 独立 DOM */
:root{
  --hl-teal:#0d9488;--hl-teal-d:#0f766e;--hl-amber:#f59e0b;--hl-ink:#0f172a;
  --hl-muted:#64748b;--hl-line:#e2e8f0;--hl-bg:#f1f5f9;--hl-card:#fff;
  --hl-radius:14px;--hl-max:1080px;
}
*,*::before,*::after{box-sizing:border-box}
html{overflow-x:hidden}
body.hl-body{margin:0;font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--hl-ink);background:var(--hl-bg);line-height:1.55;overflow-x:hidden}
a{color:var(--hl-teal-d);text-decoration:none}
a:hover{color:var(--hl-teal);text-decoration:underline}
img{max-width:100%;height:auto;vertical-align:middle}
.hl-skip{position:absolute;left:-9999px}
.hl-skip:focus{left:8px;top:8px;z-index:99;background:#fff;padding:8px 12px}
.hl-shell{width:100%;max-width:var(--hl-max);margin:0 auto;padding:0 16px;min-width:0}
.hl-shell--lift{margin-top:-28px;position:relative;z-index:2;padding-bottom:40px}
.hl-muted{color:var(--hl-muted);font-size:.92rem}

/* mast + hamburger drawer */
.hl-mast{position:sticky;top:0;z-index:40;background:#fff;border-bottom:1px solid var(--hl-line)}
.hl-mast__row{display:flex;align-items:center;justify-content:space-between;min-height:56px;gap:12px}
.hl-mark{display:flex;align-items:center;gap:10px;color:var(--hl-ink);font-weight:700;text-decoration:none}
.hl-mark img{border-radius:10px}
.hl-burger{display:flex;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;border:0;background:transparent;cursor:pointer;padding:10px}
.hl-burger span{display:block;height:2px;background:var(--hl-ink);border-radius:2px}
.hl-drawer{display:none;position:absolute;left:0;right:0;top:56px;background:#fff;border-bottom:1px solid var(--hl-line);padding:12px 16px 16px;flex-direction:column;gap:4px;box-shadow:0 12px 24px rgba(15,23,42,.08)}
.hl-drawer.is-open{display:flex}
.hl-drawer a{display:block;padding:10px 12px;border-radius:8px;color:var(--hl-ink);font-weight:600;text-decoration:none}
.hl-drawer a:hover{background:#f0fdfa;color:var(--hl-teal-d)}
@media(min-width:900px){
  .hl-burger{display:none}
  .hl-drawer{position:static;display:flex!important;flex-direction:row;align-items:center;gap:4px;border:0;box-shadow:none;padding:0;background:transparent}
  .hl-drawer a{padding:8px 10px;font-size:.92rem;font-weight:600}
}

/* hero */
.hl-hero{background:linear-gradient(145deg,var(--hl-teal) 0%,var(--hl-teal-d) 55%,#115e59 100%);color:#fff;padding:36px 0 56px}
.hl-hero--sm{padding:28px 0 40px}
.hl-hero h1{margin:0 0 8px;font-size:clamp(1.45rem,4vw,2rem);font-weight:800;letter-spacing:.02em}
.hl-hero p{margin:0;opacity:.92;max-width:40em}
.hl-hero__time{margin-top:12px!important;font-size:.88rem;opacity:.85}
.hl-crumb{font-size:.88rem;margin-bottom:10px;opacity:.9}
.hl-crumb a{color:#fff;text-decoration:underline}

/* converter: result board LEFT / form RIGHT on desktop */
.hl-conv{display:grid;gap:16px;grid-template-columns:minmax(0,1fr);background:var(--hl-card);border-radius:var(--hl-radius);padding:18px;box-shadow:0 10px 30px rgba(15,23,42,.08);margin-bottom:20px;min-width:0}
@media(min-width:820px){
  .hl-conv{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);align-items:start}
  .hl-conv__board{order:0}
  .hl-conv__form{order:1}
}
.hl-conv__board{background:linear-gradient(180deg,#f0fdfa,#ecfeff);border:1px solid #99f6e4;border-radius:12px;padding:16px 18px}
.hl-conv__eyebrow{margin:0 0 6px;font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--hl-teal-d)}
.hl-conv__out{font-size:1.05rem;line-height:1.45;margin:0 0 8px}
.hl-conv__out strong,.hl-conv__out em{font-style:normal;font-size:1.35rem;color:var(--hl-teal-d);font-weight:800}
.hl-conv__eq{display:inline-block;margin:0 .35em;color:var(--hl-muted)}
.hl-conv__rate,.hl-conv__rev,.hl-conv__upd{margin:4px 0 0;font-size:.88rem;color:var(--hl-muted)}
.hl-conv__title{margin:0 0 12px;font-size:1.1rem}
.hl-field{display:block;margin-bottom:12px}
.hl-field>span{display:block;font-size:.82rem;font-weight:600;color:var(--hl-muted);margin-bottom:4px}
.hl-field input[type=number]{width:100%;padding:11px 12px;border:1px solid var(--hl-line);border-radius:10px;font-size:1rem;min-width:0}
.hl-conv__swap{display:flex;justify-content:center;margin:-4px 0 8px}
.hl-conv__swap button{width:40px;height:40px;border-radius:50%;border:1px solid var(--hl-line);background:#fff;cursor:pointer;font-size:1.1rem;color:var(--hl-teal-d)}
.hl-go{display:inline-flex;align-items:center;justify-content:center;width:100%;padding:12px 16px;border:0;border-radius:10px;background:var(--hl-amber);color:#111;font-weight:800;font-size:1rem;cursor:pointer;text-decoration:none}
.hl-go:hover{filter:brightness(1.05);text-decoration:none;color:#111}
.hl-amt{display:flex;flex-wrap:wrap;gap:8px;grid-column:1/-1;margin-top:4px}
.hl-amt a{padding:6px 12px;border-radius:999px;background:#f8fafc;border:1px solid var(--hl-line);font-size:.85rem;color:var(--hl-ink);text-decoration:none}
.hl-amt a.is-on,.hl-amt a:hover{background:#ccfbf1;border-color:#5eead4}

/* searchable select */
.hl-ss{position:relative}
.hl-ss__btn{display:flex;align-items:center;gap:8px;width:100%;padding:10px 12px;border:1px solid var(--hl-line);border-radius:10px;background:#fff;cursor:pointer;text-align:left;min-width:0}
.hl-ss__btn img{border-radius:50%;flex-shrink:0}
.hl-ss__native{position:absolute;opacity:0;pointer-events:none;width:1px;height:1px}
.hl-ss__panel{position:absolute;z-index:20;left:0;right:0;top:calc(100% + 4px);background:#fff;border:1px solid var(--hl-line);border-radius:10px;box-shadow:0 12px 28px rgba(15,23,42,.12);padding:8px;max-height:260px;display:flex;flex-direction:column}
.hl-ss__q{width:100%;padding:8px 10px;border:1px solid var(--hl-line);border-radius:8px;margin-bottom:6px}
.hl-ss__list{list-style:none;margin:0;padding:0;overflow:auto;max-height:200px}
.hl-ss__list li{padding:8px 10px;border-radius:6px;cursor:pointer;font-size:.92rem}
.hl-ss__list li:hover,.hl-ss__list li.is-active{background:#f0fdfa}
.hl-ss__empty{color:var(--hl-muted);cursor:default}

/* panels / tables / dl */
.hl-panel{background:var(--hl-card);border-radius:var(--hl-radius);padding:18px 16px;margin-bottom:16px;border:1px solid var(--hl-line);min-width:0}
.hl-panel h2,.hl-panel__head h2{margin:0 0 12px;font-size:1.15rem}
.hl-panel__head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:8px}
.hl-panel__head h2{margin:0}
.hl-more{font-size:.88rem;font-weight:600;white-space:nowrap}
.hl-table-wrap{overflow-x:auto;max-width:100%;-webkit-overflow-scrolling:touch}
.hl-table{width:100%;border-collapse:collapse;font-size:.92rem;min-width:0}
.hl-table th,.hl-table td{padding:10px 8px;border-bottom:1px solid var(--hl-line);text-align:left;word-break:break-word}
.hl-table th{font-size:.8rem;color:var(--hl-muted);font-weight:700}
.hl-rate-dl{margin:0;display:grid;gap:0;grid-template-columns:minmax(0,1fr)}
@media(min-width:700px){.hl-rate-dl{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 20px}}
.hl-rate-dl__row{display:grid;grid-template-columns:minmax(0,1fr);gap:2px;padding:12px 0;border-bottom:1px dashed var(--hl-line);min-width:0}
.hl-rate-dl__row dt{display:flex;align-items:center;gap:8px;font-weight:700;min-width:0}
.hl-rate-dl__row dt img{border-radius:50%;flex-shrink:0}
.hl-rate-dl__row dt small{color:var(--hl-muted);font-weight:500}
.hl-rate-dl__row dd{margin:0;color:var(--hl-muted);font-size:.9rem;overflow-wrap:anywhere}
.hl-howto{background:#fff;border:1px dashed #99f6e4;border-radius:var(--hl-radius);padding:16px;margin-bottom:16px}
.hl-howto h2{margin:0 0 10px;font-size:1.05rem}
.hl-howto__ol{margin:0 0 10px;padding-left:1.2em}
.hl-howto__ol li{margin-bottom:6px}
.hl-query-ol,.hl-link-ol,.hl-news-ol{margin:0;padding-left:1.25em}
.hl-query-ol li,.hl-link-ol li{margin:8px 0}
.hl-link-ol a{display:inline-flex;align-items:center;gap:8px}
.hl-tool-strip{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.hl-tool-strip a{display:inline-block;padding:8px 12px;border-radius:8px;background:#f0fdfa;border:1px solid #99f6e4;color:var(--hl-teal-d);font-weight:600;text-decoration:none}
.hl-tool-strip a.is-on,.hl-tool-strip a:hover{background:var(--hl-teal);color:#fff;border-color:var(--hl-teal)}
.hl-news-list{list-style:none;margin:0;padding:0}
.hl-news-list li{border-bottom:1px solid var(--hl-line);padding:12px 0}
.hl-news-list h3{margin:0 0 4px;font-size:1rem}
.hl-news-list time{font-size:.85rem;color:var(--hl-muted)}
.hl-news-ol li{margin-bottom:14px}
.hl-news-ol a{display:block}
.hl-news-ol span{display:block;font-size:.85rem;color:var(--hl-muted);margin-top:2px}
.hl-news-thumb{float:left;margin:0 12px 8px 0;border-radius:8px;object-fit:cover}
.hl-spotlight{background:linear-gradient(135deg,#0d9488,#134e4a);color:#fff;border-radius:var(--hl-radius);padding:22px 18px;margin-bottom:16px;text-align:center}
.hl-spotlight__lab{margin:0;opacity:.85;font-size:.9rem}
.hl-spotlight__val{margin:8px 0;font-size:clamp(1.8rem,5vw,2.6rem);font-weight:800}
.hl-spotlight__chg{margin:0;opacity:.9}
.hl-faq details{border-bottom:1px solid var(--hl-line);padding:10px 0}
.hl-faq summary{cursor:pointer;font-weight:700}
.hl-empty{text-align:center;padding:48px 16px}
.hl-article-img{border-radius:12px;max-width:100%}
.hl-article-body{overflow-wrap:anywhere}
.hl-pager{margin-top:16px}

/* footer */
.hl-foot{background:#0f172a;color:#cbd5e1;padding:36px 0 24px;margin-top:24px;font-size:.92rem}
.hl-foot a{color:#99f6e4}
.hl-foot__grid{display:grid;grid-template-columns:minmax(0,1fr);gap:22px;margin-bottom:24px}
@media(min-width:760px){.hl-foot__grid{grid-template-columns:minmax(0,1.4fr) repeat(2,minmax(0,1fr))}}
.hl-foot__h{margin:0 0 10px;font-size:1rem;color:#fff}
.hl-foot__ul{list-style:none;margin:0;padding:0}
.hl-foot__ul li{margin:6px 0}
.hl-foot__badge{display:inline-block;margin-top:8px;padding:4px 10px;border-radius:999px;background:rgba(13,148,136,.25);color:#5eead4;font-size:.8rem}
.hl-friends{border-top:1px solid #334155;padding-top:16px;margin-bottom:16px}
.hl-friends__list a{margin-right:12px}
.hl-foot__copy{border-top:1px solid #334155;padding-top:14px;margin:0;font-size:.82rem;color:#94a3b8}
.hl-foot__copy small{display:inline-block;margin-top:6px}