:root{--accent:#0E7490;--accent-deep:#0A5A70;--text:#152528;--mut:#4E6670;--bg:#F4FAFB;--card:#FFFFFF;--border:#D8E8EC;--soft:#E2F0F4;--good:#1E7B4F;--bad:#B3423A;}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);
  font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  min-height:100vh;display:flex;flex-direction:column}
body>*{min-width:0;width:100%}
img{max-width:100%}
svg{max-width:100%;height:auto}
a{color:var(--accent-deep)}
h1,h2,h3,h4{line-height:1.25;color:var(--text)}
h2{font-size:26px;margin:34px 0 12px}
h3{font-size:19px;margin:22px 0 8px}
.wrap{flex:1;width:100%;max-width:1080px;margin:0 auto;padding:0 18px}
.topnav{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50}
.nav-in{max-width:1080px;margin:0 auto;padding:10px 18px;display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:9px;text-decoration:none;color:var(--text);
  font-weight:800;font-size:15.5px;white-space:nowrap;flex-shrink:0}
.nav-links{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.nav-links::-webkit-scrollbar{display:none}
.nav-links a{padding:7px 11px;border-radius:9px;text-decoration:none;color:var(--text);
  font-size:14px;font-weight:600;white-space:nowrap}
.nav-links a:hover{background:var(--soft)}
.nav-links a.on{background:var(--accent);color:#fff}
.hero{background:linear-gradient(180deg,#fff, var(--bg));border-bottom:1px solid var(--border)}
.hero.slim .hero-in{padding:30px 0 24px}
.hero-in{max-width:1080px;margin:0 auto;padding:40px 18px 30px;display:flex;gap:30px;align-items:center}
.hero-in>div{flex:1;min-width:0}
.kicker{display:inline-block;background:var(--soft);color:var(--accent-deep);font-weight:800;
  font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;padding:5px 11px;border-radius:999px}
.hero h1{font-size:34px;margin:14px 0 10px}
.hero .sub{font-size:17px;color:var(--mut);margin:0 0 8px;max-width:640px}
.hero-art{flex-shrink:0;width:400px;max-width:44%}
.hero-art svg{width:100%;height:auto;display:block}
.crumbs{font-size:13px;color:var(--mut);margin:16px 0 0}
.crumbs a{color:var(--mut)}
.updated{display:inline-block;font-size:13px;color:var(--mut);background:var(--soft);
  border-radius:999px;padding:4px 12px;margin:14px 0 4px}
/* App 卡 */
.pgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:20px 0}
.pcard{background:var(--card);border:1px solid var(--border);border-radius:14px;display:flex;
  flex-direction:column;overflow:hidden}
.pc-top{display:flex;gap:6px;align-items:center;min-height:34px;padding:8px 10px 0}
.badge{display:inline-block;background:var(--accent-deep);color:#fff;font-size:11.5px;font-weight:800;
  letter-spacing:.03em;padding:4px 10px;border-radius:999px;line-height:1.3}
.badge-win{background:var(--accent)}
.rank{font-size:12px;font-weight:800;color:var(--mut)}
.pc-img{display:flex;justify-content:center;padding:16px 12px 0}
.appglyph{width:84px;height:84px;border-radius:20px;background:var(--accent);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:38px;font-weight:800}
.pc-body{padding:12px 16px 16px;display:flex;flex-direction:column;gap:7px;flex:1}
.pc-body h3{margin:0;font-size:17px}
.pc-blurb{font-size:13px;color:var(--mut);margin:0;line-height:1.5}
.pc-chips{display:flex;flex-wrap:wrap;gap:6px}
.chip-cat{background:var(--soft);color:var(--accent-deep);font-size:11.5px;font-weight:700;padding:3px 9px;border-radius:999px}
.chip-sold{background:#FDF3E1;color:#8A5A12;font-size:11.5px;font-weight:800;padding:3px 9px;border-radius:999px}
.pc-pros{margin:2px 0 0;padding-left:18px;font-size:13px}
.pc-pros li{margin:3px 0}
.pc-buy{margin-top:auto;padding-top:8px}
.btn-cta{display:inline-block;text-align:center;background:var(--accent);color:#fff;font-weight:800;font-size:14px;
  padding:10px 14px;border-radius:11px;text-decoration:none;line-height:1.25;
  transition:filter .16s ease, transform .06s ease}
.btn-cta:hover{filter:brightness(1.08)}
.btn-cta:active{transform:scale(.985)}
.btn-cta:focus-visible{outline:3px solid var(--accent-deep);outline-offset:2px}
.btn-official{width:100%}
/* 计算器 */
.review-head{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.review-head>div:nth-child(2){flex:1;min-width:240px}
.review-head p{max-width:640px;margin:8px 0 0}
.review-buy{display:flex;flex-direction:column;gap:6px}
.review-buy small.fhint{max-width:200px;display:block}
.toolcard{background:#fff;border:1px solid var(--border);border-radius:16px;padding:22px;margin:22px 0;
  box-shadow:0 4px 18px rgba(14,90,110,.06)}
.toolgrid{display:grid;grid-template-columns:1.15fr 1fr;gap:22px}
.frow{display:flex;flex-direction:column;gap:4px;margin:0 0 12px}
.frow label{font-size:13px;font-weight:700;color:var(--mut)}
.fctl{display:flex;align-items:center;background:#FAFEFF;border:1.5px solid var(--border);border-radius:10px;
  padding:0 10px;transition:border-color .15s}
.fctl:focus-within{border-color:var(--accent)}
.f-suf{color:var(--mut);font-weight:600;font-size:13px;padding-left:6px;white-space:nowrap}
.fctl input{border:none;background:none;padding:10px 0;font-size:16.5px;font-weight:700;width:100%;
  color:var(--text);outline:none;font-variant-numeric:tabular-nums}
.fhint{font-size:11.5px;color:var(--mut)}
.cres{background:var(--soft);border-radius:14px;padding:18px 20px;display:flex;flex-direction:column;gap:12px}
.cres-big{display:flex;flex-direction:column;gap:2px}
.cres-lab{font-size:13px;font-weight:700;color:var(--mut);text-transform:uppercase;letter-spacing:.05em}
.cres-big strong{font-size:36px;color:var(--accent-deep);font-variant-numeric:tabular-nums;line-height:1.15}
.cres-rows{display:flex;flex-direction:column;gap:6px;font-size:14px}
.cres-rows>div{display:flex;justify-content:space-between;gap:10px}
.cres-rows span{color:var(--mut)}
.cres-rows b{font-variant-numeric:tabular-nums}
.cnote{font-size:12px;color:var(--mut);margin:10px 2px 0;max-width:800px}
/* 表 */
.tbl-wrap{overflow-x:auto;margin:18px 0 6px;border:1px solid var(--border);border-radius:12px;background:#fff}
table.data{border-collapse:collapse;width:100%;min-width:640px;font-size:14px}
table.data th,table.data td{padding:8px 12px;border-bottom:1px solid var(--border);text-align:left;vertical-align:middle}
table.data th{white-space:nowrap;background:var(--soft);font-size:12.5px;text-transform:uppercase;letter-spacing:.04em}
table.data tr:last-child td{border-bottom:none}
td.num,th.num{font-variant-numeric:tabular-nums}
.sortable-header{user-select:none;cursor:pointer;transition:background-color .2s}
.sortable-header:hover{background-color:rgba(0,0,0,.05)}
.sort-icon{font-size:.72em;opacity:.4}
.sortable-header.sort-asc .sort-icon::after{content:' \25B2';opacity:1}
.sortable-header.sort-desc .sort-icon::after{content:' \25BC';opacity:1}
.sortable-header.sort-asc,.sortable-header.sort-desc{background-color:rgba(0,0,0,.08)}
.prose{max-width:800px}
.prose p{margin:12px 0}
.prose ul,.prose ol{margin:10px 0;padding-left:22px}
.prose li{margin:6px 0}
.faq{margin:30px 0;max-width:800px}
.qa{background:#fff;border:1px solid var(--border);border-radius:12px;padding:0;margin:8px 0}
.qa summary{cursor:pointer;font-weight:700;padding:13px 16px;font-size:15px;list-style:none;display:flex;justify-content:space-between;gap:10px}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:'+';color:var(--accent);font-weight:800;font-size:18px;flex-shrink:0}
.qa[open] summary::after{content:'\2212'}
.qa p{margin:0;padding:0 16px 14px;font-size:14.5px}
.related{margin:34px 0 20px}
.rgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.rcard{background:#fff;border:1px solid var(--border);border-radius:12px;padding:14px 16px;
  text-decoration:none;color:var(--text);display:flex;flex-direction:column;gap:4px;
  transition:border-color .16s, box-shadow .16s}
.rcard:hover{border-color:var(--accent);box-shadow:0 2px 10px rgba(14,116,144,.10)}
.rcard span{font-weight:800;font-size:14.5px}
.rcard small{color:var(--mut);font-size:12.5px;line-height:1.45}
.site{background:#0E2429;color:#CFE2E6;margin-top:40px}
.foot-in{max-width:1080px;margin:0 auto;padding:34px 18px 20px;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.fcol h4{color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:.07em;margin:0 0 10px}
.fcol a{display:block;color:#A5C4CB;text-decoration:none;font-size:13.5px;padding:3px 0}
.fcol a:hover{color:#fff;text-decoration:underline}
.foot-base{border-top:1px solid #1C3840}
.fb-in{max-width:1080px;margin:0 auto;padding:14px 18px;display:flex;flex-wrap:wrap;gap:8px 22px;justify-content:space-between;font-size:12.5px;color:#84A6AD}
.sr-box{position:relative;flex-shrink:0}
.sr-box input{border:1px solid var(--border);border-radius:999px;padding:7px 30px 7px 14px;font-size:13.5px;width:140px;background:var(--bg)}
.sr-box .sr-x{position:absolute;right:8px;top:50%;transform:translateY(-50%);cursor:pointer;color:var(--mut);border:none;background:none;font-size:14px;display:none}
.sr-pop{position:absolute;right:0;top:110%;background:#fff;border:1px solid var(--border);border-radius:12px;
  box-shadow:0 8px 26px rgba(14,90,110,.14);width:300px;max-height:340px;overflow:auto;display:none;z-index:99}
.sr-pop a{display:block;padding:9px 13px;text-decoration:none;color:var(--text);font-size:13.5px;border-bottom:1px solid var(--border)}
.sr-pop a:last-child{border-bottom:none}
.sr-pop a:hover{background:var(--soft)}
.sr-pop b{display:block;font-size:13.5px}
.sr-pop small{color:var(--mut)}
.nf{padding:70px 0;text-align:center}
.nf h1{font-size:44px;margin:0 0 8px}
@media (max-width:860px){.toolgrid{grid-template-columns:1fr}}
@media (max-width:760px){
  .hero-in{flex-direction:column;align-items:flex-start;padding:28px 18px 22px;gap:16px}
  .hero h1{font-size:29px}
  .hero-art{width:100%;max-width:430px}
  .hero-art svg{height:250px;width:auto;max-width:100%;margin:0 auto;display:block}
  .nav-in{flex-wrap:wrap;gap:8px}
  .brand span{font-size:13.5px}
  .pgrid{grid-template-columns:1fr}
  .rgrid{grid-template-columns:1fr}
  .foot-in{grid-template-columns:1fr 1fr}
  .toolcard{padding:16px}
  .cres-big strong{font-size:31px}
}
@media (min-width:1600px){
  .wrap,.nav-in,.foot-in{max-width:1280px}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important;
    animation-iteration-count:1!important;scroll-behavior:auto!important}
}
.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}