:root { --ink:#242e2c; --muted:#5a6662; --accent:#18594e; --accent-dark:#103f37; --line:#dce2df; --surface:#f5f7f6; --warn:#8a3b12; --warn-bg:#fdf3ec; font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang TC","Microsoft JhengHei",sans-serif; }
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;color:var(--ink);background:#fff;font-size:17px;line-height:1.8;overflow-wrap:anywhere}
h1,h2,h3{line-height:1.4;margin:0}
p,ul,ol,dl{margin:0}
a{color:var(--accent);text-underline-offset:3px}
a:hover{color:var(--accent-dark)}
img{max-width:100%;height:auto}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.container{width:min(1120px,calc(100% - 32px));margin-inline:auto}
.narrow{width:min(760px,calc(100% - 32px));margin-inline:auto}
.skip{position:absolute;left:16px;top:8px;padding:10px 16px;background:#fff;transform:translateY(-200%);z-index:5}.skip:focus{transform:none}
.site-header{border-bottom:1px solid var(--line)}
.header-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;min-height:68px}
.brand{display:inline-flex;align-items:center;min-height:44px}.brand img{display:block;height:34px;width:auto}
.menu-toggle{display:none;min-width:44px;min-height:44px;padding:8px 14px;border:1px solid var(--line);border-radius:4px;background:#fff;color:var(--ink);font-size:15px}
.js .menu-toggle{display:inline-block}
.main-nav{display:flex;flex-basis:100%;flex-direction:column;padding-bottom:8px}.js .main-nav{display:none}.js .main-nav.is-open{display:flex}
.main-nav a{display:flex;align-items:center;min-height:44px;font-size:15px;color:var(--ink);text-decoration:none}
.crumbs{padding-top:16px;font-size:14px;color:var(--muted)}.crumbs ol{display:flex;flex-wrap:wrap;gap:4px 8px;padding:0;list-style:none}.crumbs li+li::before{content:"›";margin-right:8px}
.hero{padding-block:36px 26px}.hero h1,.page-head h1{font-size:clamp(28px,4vw,40px);font-weight:680;letter-spacing:-.01em}
.lead{margin-top:10px;color:var(--muted);max-width:740px}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:9px 20px;border:1px solid var(--accent);border-radius:6px;background:var(--accent);color:#fff;font:inherit;font-size:16px;font-weight:600;text-decoration:none;cursor:pointer}
.btn:hover{color:#fff;background:var(--accent-dark)}.btn.ghost{background:#fff;color:var(--accent)}.btn.ghost:hover{color:#fff;background:var(--accent)}
.section{padding-top:44px}.section>h2,.section-head h2{font-size:24px;font-weight:660}.section-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:16px}
.section>h2{margin-bottom:16px}
.grid{display:grid;gap:12px;grid-template-columns:minmax(0,1fr)}
.card{display:flex;flex-direction:column;gap:6px;padding:18px;border:1px solid var(--line);border-radius:8px;color:inherit;text-decoration:none;background:#fff}
a.card:hover{border-color:var(--accent);color:inherit}.card h3{font-size:17px}.card p{color:var(--muted);font-size:15px;line-height:1.65}
.card img{width:52px;height:52px}.tag{color:var(--accent);font-size:13px;font-weight:600}
.about-box,.note{padding:20px;border-radius:8px;background:var(--surface)}.about-box h2{font-size:20px;margin-bottom:6px}.about-box p{font-size:16px}
.note{margin-top:20px;font-size:15px}
.warn{padding:14px 16px;border-left:3px solid var(--warn);background:var(--warn-bg);font-size:15px}
.page-head{padding-block:20px 8px}.meta{margin-top:8px;color:var(--muted);font-size:14px}
.answer{margin-top:16px;padding:18px 20px;border-left:3px solid var(--accent);background:var(--surface)}.answer strong{display:block;margin-bottom:4px;font-size:14px;color:var(--accent)}
.hero-icon{width:72px;height:72px;margin-bottom:10px}
.prose{padding-top:8px}.prose h2{margin-top:36px;margin-bottom:10px;font-size:23px;font-weight:660}.prose h3{margin-top:24px;margin-bottom:6px;font-size:19px}
.prose p{margin-block:10px}.prose ul,.prose ol{margin-block:10px;padding-left:1.4em}.prose li{margin-block:4px}
.table-wrap{overflow-x:auto;margin-block:14px;-webkit-overflow-scrolling:touch}table{width:100%;min-width:480px;border-collapse:collapse;font-size:15px;line-height:1.55}th,td{padding:9px 10px;border:1px solid var(--line);text-align:left;vertical-align:top}th{background:var(--surface)}
.faq-item{padding-block:14px;border-bottom:1px solid var(--line)}.faq-item h3{font-size:18px}.faq-item p{margin-top:4px;color:var(--muted);font-size:16px}
.sources{padding-left:1.2em;font-size:15px}
.tool{margin-top:16px;padding:20px;border:1px solid var(--line);border-radius:8px}.field{margin-bottom:14px}.field label{display:block;margin-bottom:4px;font-weight:600;font-size:15px}
input,select{width:100%;min-height:46px;padding:9px 12px;border:1px solid #a8b4ae;border-radius:5px;background:#fff;color:var(--ink);font:inherit;font-size:16px}
.result{margin-top:18px;padding:16px;background:var(--surface);border-radius:6px}.result dl{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:6px 12px}.result dd{margin:0;font-weight:700;text-align:right}
.checklist{list-style:none;padding:0}.checklist li{border-bottom:1px solid var(--line)}.checklist label{display:flex;gap:10px;padding:12px 0;align-items:flex-start;cursor:pointer}.checklist input{flex:0 0 22px;width:22px;min-height:22px;height:22px;margin-top:4px}
.site-footer{margin-top:56px;padding-block:32px 22px;border-top:1px solid var(--line);background:var(--surface);font-size:15px}.footer-grid{display:grid;gap:22px}.footer-grid h2{font-size:15px;margin-bottom:4px}.footer-grid a{display:flex;align-items:center;min-height:40px;color:var(--muted);text-decoration:none}.footer-grid a:hover{color:var(--accent)}
.legal{margin-top:20px;padding-top:14px;border-top:1px solid var(--line);color:var(--muted);font-size:13.5px}
@media(min-width:640px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(min-width:960px){.js .menu-toggle{display:none}.main-nav,.js .main-nav{display:flex;flex-basis:auto;flex-direction:row;gap:26px;padding:0}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.hero{padding-top:52px}}

.merchant-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.m-card{display:flex;flex-direction:column;gap:6px;padding:14px;border:1px solid var(--line);border-radius:8px;color:inherit;text-decoration:none;min-width:0}a.m-card:hover{border-color:var(--accent);color:inherit}.m-card h3{font-size:16px}.m-card p{font-size:14px;color:var(--muted);line-height:1.6}
.badge-ad,.badge-ok,.badge-self{display:inline-block;width:fit-content;padding:0 7px;border-radius:3px;font-size:12px;line-height:20px;border:1px solid #a8b4ae;color:var(--muted)}.badge-ok{border-color:var(--accent);color:var(--accent)}.badge-self{border-color:var(--warn);color:var(--warn)}
.filters{display:grid;gap:10px;grid-template-columns:repeat(2,minmax(0,1fr));margin-block:16px}.contact-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}textarea{width:100%;padding:9px 12px;border:1px solid #a8b4ae;border-radius:5px;font:inherit;font-size:16px}.check{display:flex;gap:10px;align-items:flex-start;font-size:15px}.check input{flex:0 0 22px;width:22px;height:22px;min-height:22px;margin-top:4px}.hp{position:absolute;left:-9999px}.ok-msg{padding:14px;background:#e9f4f1;border-radius:6px}.err-msg{padding:14px;background:var(--warn-bg);border-radius:6px}.kv{display:grid;grid-template-columns:6.5em minmax(0,1fr);gap:4px 10px}.kv dd{margin:0}
@media(min-width:640px){.merchant-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.filters{max-width:520px}}@media(min-width:960px){.merchant-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}