/* mingvia shared design system, used by /shenzhen and entry pages */
:root{
  --canvas:#FBFBFA; --surface:#ffffff; --ink:#15181f; --muted:#5b6270; --faint:#8b93a1;
  --line:#ececea; --line-2:#e4e4e1; --teal:#0e7c7b; --teal-bg:#ecfbfa; --teal-ln:#cdeeec;
  --panel:#14171d; --shadow:0 1px 2px rgba(20,23,29,.04), 0 8px 30px rgba(20,23,29,.05);
  --shadow-h:0 2px 6px rgba(20,23,29,.06), 0 14px 44px rgba(20,23,29,.08);
  --r:14px; --ease:cubic-bezier(.16,1,.3,1);
}
*{box-sizing:border-box} html{scroll-behavior:smooth}
body{margin:0;background:var(--canvas);color:var(--ink);line-height:1.62;
  font-family:"Plus Jakarta Sans",-apple-system,BlinkMacSystemFont,"SF Pro Display",sans-serif;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
.wrap{max-width:1040px;margin:0 auto;padding:0 24px}
.serif{font-family:"Newsreader",Georgia,serif;font-weight:400;letter-spacing:-.02em;line-height:1.1}
a{color:inherit}
.eyebrow{display:inline-block;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.18em;
  color:var(--teal);background:var(--teal-bg);border:1px solid var(--teal-ln);padding:6px 13px;border-radius:999px}
/* nav */
.nav{position:sticky;top:14px;z-index:30;margin:14px auto 0;width:max-content;max-width:calc(100% - 32px);
  display:flex;align-items:center;gap:22px;padding:9px 10px 9px 18px;background:rgba(255,255,255,.72);
  backdrop-filter:saturate(180%) blur(14px);border:1px solid var(--line-2);border-radius:999px;box-shadow:var(--shadow)}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;font-size:17px;letter-spacing:-.02em;text-decoration:none}
.brand .glyph{display:inline-grid;place-items:center;width:27px;height:27px;border-radius:8px;background:var(--ink);color:#fff;font-family:"Newsreader",serif;font-size:15px}
.nav .links{display:flex;gap:18px}
.nav .links a{color:var(--muted);text-decoration:none;font-size:14px;font-weight:500}
.nav .links a:hover{color:var(--ink)}
.nav .navcta{font-size:13.5px;font-weight:600;color:#fff;background:var(--ink);padding:8px 15px;border-radius:999px;text-decoration:none}
@media(max-width:680px){.nav .links{display:none}}
/* breadcrumb */
.crumb{font-size:13px;color:var(--faint);margin:30px 0 0;display:flex;gap:8px;flex-wrap:wrap}
.crumb a{color:var(--muted);text-decoration:none} .crumb a:hover{color:var(--ink)}
.crumb span{color:var(--line-2)}
/* hero */
.phead{padding:18px 0 8px;max-width:780px}
.phead h1{font-size:clamp(32px,5vw,52px);margin:16px 0 14px}
.phead .lede{font-size:19px;color:var(--muted);margin:0;max-width:680px}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{display:inline-block;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.1em;padding:5px 11px;border-radius:999px}
.tag.cn{color:#9a3412;background:#fdf0e7;border:1px solid #f6dcc8}
.tag.intl{color:#1f6c9f;background:#e8f4fd;border:1px solid #d3e9f8}
.tag.live{color:var(--teal);background:var(--teal-bg);border:1px solid var(--teal-ln)}
.tag.soon{color:var(--faint);background:#f4f4f2;border:1px solid var(--line-2)}
/* layout: content + sticky aside */
.cols{display:grid;grid-template-columns:1fr 320px;gap:32px;align-items:start;margin:44px 0}
.aside{position:sticky;top:84px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px;box-shadow:var(--shadow)}
.aside h3{margin:0 0 14px;font-size:15px;font-weight:600}
.aside dl{margin:0} .aside dt{font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:var(--faint);margin-top:14px}
.aside dt:first-child{margin-top:0} .aside dd{margin:3px 0 0;font-size:14.5px}
.aside dd a{color:var(--teal);text-decoration:none} .aside dd .zh{font-family:"Newsreader",serif;color:var(--faint);font-size:13.5px}
.aside .btn{display:flex;justify-content:center;margin-top:18px;width:100%}
/* verified premium */
.vbadge{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.1em;
  color:#0e7c7b;background:linear-gradient(180deg,#f3fcfb,#e6f7f6);border:1px solid var(--teal-ln);padding:6px 12px 6px 9px;border-radius:999px}
.vbadge svg{width:14px;height:14px}
.vbanner{display:flex;gap:14px;align-items:flex-start;background:linear-gradient(180deg,#fbfffe,#f0faf9);border:1px solid var(--teal-ln);
  border-radius:14px;padding:18px 20px;margin:24px 0;box-shadow:var(--shadow)}
.vbanner .vi{flex:none;display:grid;place-items:center;width:38px;height:38px;border-radius:10px;background:var(--teal);color:#fff}
.vbanner .vi svg{width:20px;height:20px}
.vbanner h3{margin:0 0 4px;font-size:15px;font-weight:700}
.vbanner p{margin:0;font-size:14px;color:var(--muted)}
.aside.premium{border-color:var(--teal-ln);box-shadow:0 2px 6px rgba(14,124,123,.08),0 14px 44px rgba(14,124,123,.1)}
.aside .vrow{display:flex;align-items:center;gap:7px;font-size:12px;color:var(--teal);font-weight:600;margin:0 0 14px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.aside .vrow svg{width:15px;height:15px}
/* images */
.hero-photo{margin:26px 0 4px;border-radius:18px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-h);aspect-ratio:16/8}
.hero-photo img{width:100%;height:100%;object-fit:cover;display:block}
.figure{margin:18px 0;border-radius:14px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);background:var(--surface)}
.figure img{width:100%;display:block;object-fit:cover}
.figure figcaption{font-size:12.5px;color:var(--faint);padding:10px 14px;border-top:1px solid var(--line)}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:18px 0}
.gallery .figure{margin:0}
.gallery .figure img{aspect-ratio:4/3;height:auto}
@media(max-width:680px){.gallery{grid-template-columns:1fr 1fr}}
/* prose */
.prose h2{font-size:clamp(22px,3vw,30px);margin:38px 0 12px} .prose h2:first-child{margin-top:0}
.prose h3{font-size:18px;margin:26px 0 8px;font-weight:600}
.prose p{color:var(--muted);margin:0 0 14px;font-size:15.5px}
.prose ul{margin:0 0 16px;padding-left:0;list-style:none}
.prose ul li{position:relative;padding:6px 0 6px 24px;font-size:15px;color:var(--muted);border-bottom:1px solid var(--line)}
.prose ul li:last-child{border-bottom:0}
.prose ul li::before{content:"";position:absolute;left:2px;top:13px;width:7px;height:7px;border-radius:2px;background:var(--teal-ln)}
.prose strong{color:var(--ink);font-weight:600}
/* cards / grid */
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:18px 0}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow)}
.card h3{margin:0 0 8px;font-size:16px;font-weight:600}
.card p{margin:0;font-size:14.5px;color:var(--muted)}
.card .ic{font-size:22px;display:block;margin-bottom:8px}
/* spec table */
.tbl{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;font-size:14.5px;margin:8px 0 18px}
.tbl th{text-align:left;background:#f7f7f5;color:var(--faint);font-size:11px;text-transform:uppercase;letter-spacing:.08em;padding:11px 14px;font-weight:600;border-bottom:1px solid var(--line)}
.tbl td{padding:11px 14px;border-bottom:1px solid var(--line);color:var(--muted);vertical-align:top}
.tbl tr:last-child td{border-bottom:0}
.tbl td strong{color:var(--ink)}
.tbl .num{font-variant-numeric:tabular-nums;white-space:nowrap}
.rank{display:inline-grid;place-items:center;width:24px;height:24px;border-radius:7px;background:var(--teal-bg);color:var(--teal);font-weight:700;font-size:13px;border:1px solid var(--teal-ln)}
.feat{background:var(--teal-bg)}
/* faq */
.faq{margin:8px 0 0}
.faq details{border:1px solid var(--line);border-radius:12px;background:var(--surface);padding:0 18px;margin-bottom:10px;box-shadow:var(--shadow)}
.faq summary{cursor:pointer;list-style:none;padding:16px 0;font-weight:600;font-size:15.5px;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--teal);font-size:20px;font-weight:400}
.faq details[open] summary::after{content:"\2212"}
.faq details[open] summary{border-bottom:1px solid var(--line)}
.faq .ans{padding:14px 0 18px;color:var(--muted);font-size:15px}
/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;padding:13px 20px;border-radius:12px;font-weight:600;font-size:15px;text-decoration:none;
  transition:transform .25s var(--ease),background .25s var(--ease),box-shadow .25s var(--ease)}
.btn:active{transform:scale(.98)}
.btn-p{background:var(--ink);color:#fff} .btn-p:hover{box-shadow:var(--shadow-h)}
.btn-s{background:var(--surface);color:var(--ink);border:1px solid var(--line-2)} .btn-s:hover{border-color:#cfd2cf;box-shadow:var(--shadow)}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
/* inquiry form */
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:30px;box-shadow:var(--shadow-h);margin:8px 0}
.form-card .eyebrow{margin-bottom:12px}
.form-card h2{font-size:clamp(22px,3vw,30px);margin:6px 0 6px}
.form-card .sub{color:var(--muted);font-size:15.5px;margin:0 0 20px;max-width:560px}
.frow{display:grid;gap:6px;margin-bottom:16px}
.frow.two{grid-template-columns:1fr 1fr;gap:16px}
.frow.two>div{display:grid;gap:6px}
.frm label{font-size:13px;font-weight:600;color:var(--ink)}
.frm label .opt{color:var(--faint);font-weight:400}
.frm input,.frm select,.frm textarea{width:100%;font:inherit;font-size:15px;color:var(--ink);background:var(--canvas);
  border:1px solid var(--line-2);border-radius:10px;padding:11px 13px;transition:border-color .2s,box-shadow .2s}
.frm input:focus,.frm select:focus,.frm textarea:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(14,124,123,.12)}
.frm textarea{resize:vertical;min-height:84px}
.frm .consent{display:flex;gap:9px;align-items:flex-start;font-size:12.5px;color:var(--muted);margin:4px 0 18px;line-height:1.5}
.frm .consent input{width:auto;margin-top:2px}
.frm .consent a{color:var(--teal)}
.frm button{width:100%;justify-content:center;cursor:pointer;border:none}
.frm .formnote{font-size:12px;color:var(--faint);margin:12px 0 0;text-align:center}
@media(max-width:560px){.frow.two{grid-template-columns:1fr}}
/* note / disclaimer */
.note{background:#f7f7f5;border:1px solid var(--line-2);border-radius:12px;padding:16px 18px;font-size:13px;color:var(--faint);line-height:1.55;margin:24px 0}
.note strong{color:var(--muted)}
/* offer panel */
.offer{background:var(--panel);color:#fff;border-radius:20px;padding:38px;box-shadow:var(--shadow-h);margin:48px 0 0}
.offer .eyebrow{color:#7fe4df;background:rgba(127,228,223,.1);border-color:rgba(127,228,223,.22)}
.offer h2{color:#fff;margin:14px 0 10px} .offer p{color:#aeb6c2;max-width:600px;margin:0}
.offer .btn-p{background:#fff;color:var(--ink)} .offer .btn-p:hover{background:#eef0ee}
/* footer */
footer{padding:40px 0 64px;border-top:1px solid var(--line);color:var(--muted);font-size:13.5px;margin-top:48px}
footer .glyph{font-family:"Newsreader",serif} footer .ent{color:var(--faint);margin-top:8px;font-size:12.5px}
footer a{color:var(--muted)}
section{padding:44px 0;border-top:1px solid var(--line)}
.sec-head{max-width:660px;margin-bottom:24px}
.sec-head h2{font-size:clamp(24px,3.2vw,32px);margin:12px 0 8px}
.sec-head p{color:var(--muted);margin:0;font-size:16px}
@media(max-width:820px){.cols{grid-template-columns:1fr}.aside{position:static}.grid2{grid-template-columns:1fr}}
@media(max-width:680px){.tbl{font-size:13px}.tbl th,.tbl td{padding:9px 10px}}
.reveal{transition:opacity .6s var(--ease),transform .6s var(--ease)} html.js .reveal{opacity:0;transform:translateY(14px)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}
/* polish: card svg icons + scrollable tables on mobile */
.card .ic{color:var(--teal);line-height:0}
.card .ic svg{width:24px;height:24px;display:block}
.tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--r);margin:8px 0 18px}
.tbl-wrap .tbl{margin:0}
@media(max-width:680px){.tbl-wrap .tbl{min-width:600px}}

/* language switcher */
.langswitch{display:inline-flex;align-items:center;gap:2px;background:var(--canvas);border:1px solid var(--line-2);border-radius:999px;padding:3px}
.langswitch a{display:inline-flex;align-items:center;gap:5px;font-size:13px;font-weight:600;text-decoration:none;color:var(--muted);padding:5px 10px;border-radius:999px;line-height:1}
.langswitch a.on{background:var(--ink);color:#fff}
.langswitch a:hover:not(.on){color:var(--ink)}