/* EPR通: one stylesheet, system fonts only. Nothing here may load from outside the server (must work from the Mainland).
   Layout follows Chinese B2B service sites: utility bar, full-width banner, centred section titles, dense grids, floating WeChat. */
:root{--ink:#1a1a1a;--ink2:#444;--muted:#777;--line:#e6e9e6;--soft:#f5f7f6;--g:#0f8a4b;--gd:#0c7a42;--g1:#e6f4ec;--o:#ff6a00;--red:#e5383b}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ink);font:16px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--g)}
.w{max-width:1200px;margin:0 auto;padding:0 20px}
.top{background:var(--gd);color:#e6f6ec;font-size:13px}
.top .w{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-top:6px;padding-bottom:6px}
.top a{color:#e6f6ec;text-decoration:none}
header{background:#fff;position:sticky;top:0;z-index:20;box-shadow:0 1px 8px rgba(0,0,0,.06)}
header .w{display:flex;align-items:center;gap:18px;min-height:68px;flex-wrap:wrap}
header .logo img{display:block;height:42px;width:auto}
header nav{display:flex;gap:2px 28px;flex-wrap:wrap;margin-left:auto;font-size:16px;align-items:center}
header nav a{color:var(--ink);text-decoration:none;padding:22px 0;border-bottom:3px solid transparent;font-weight:500}
header nav a.on,header nav a:hover{color:var(--g);border-color:var(--g)}
header nav a.cta{background:var(--o);color:#fff;padding:9px 20px;border-radius:4px;border:0;font-weight:650}
@media (max-width:820px){header nav{gap:2px 16px;font-size:15px;margin-left:0}header nav a{padding:8px 0}header .w{padding-top:8px;padding-bottom:8px}}
h1{font-size:clamp(28px,4.4vw,44px);line-height:1.3;margin:0 0 14px;font-weight:800}
h3{font-size:18px;margin:0 0 8px;font-weight:700}
p{margin:0 0 12px}
ul{margin:0 0 12px;padding-left:20px}
li{margin:4px 0}
.banner{background:linear-gradient(120deg,#0f8a4b 0%,#17a05a 55%,#2cba75 100%);color:#fff;position:relative;overflow:hidden}
.banner:after{content:"";position:absolute;right:-120px;top:-120px;width:460px;height:460px;border-radius:50%;background:rgba(255,255,255,.06)}
.banner .w{display:grid;grid-template-columns:1.5fr 1fr;gap:40px;align-items:center;padding-top:56px;padding-bottom:56px;position:relative;z-index:1}
@media (max-width:820px){.banner .w{grid-template-columns:1fr;padding-top:36px;padding-bottom:36px}}
.banner h1 em{font-style:normal;color:#ffd54a}
.banner .lead{font-size:17px;color:#fff;max-width:640px}
.ticks{list-style:none;padding:0;margin:16px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:6px 18px;font-size:15.5px}
.ticks li:before{content:"✓";color:#ffd54a;font-weight:800;margin-right:8px}
@media (max-width:560px){.ticks{grid-template-columns:1fr}}
.btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.btn{display:inline-block;background:var(--o);color:#fff;text-decoration:none;padding:12px 30px;border-radius:4px;font-weight:700;font-size:16px}
.btn.o{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.7)}
.btn.g{background:var(--g)}
.qrcard{background:#fff;color:var(--ink);border-radius:10px;padding:20px;text-align:center;box-shadow:0 12px 40px rgba(0,0,0,.25)}
.qrcard img{width:190px;height:auto;border-radius:6px}
.qrcard b{display:block;font-size:18px;margin-bottom:8px}
.qrcard span{display:block;color:var(--muted);font-size:14px;margin-top:6px}
.strip{background:#fff;box-shadow:0 6px 24px rgba(0,0,0,.06);position:relative;z-index:2}
.strip .w{display:grid;grid-template-columns:repeat(4,1fr);padding-top:0;padding-bottom:0}
.strip div{padding:20px 14px;text-align:center;border-right:1px solid var(--line)}
.strip div:last-child{border-right:0}
.strip b{display:block;font-size:22px;color:var(--g);font-weight:800}
.strip span{font-size:14px;color:var(--muted)}
@media (max-width:820px){.strip .w{grid-template-columns:1fr 1fr}.strip div:nth-child(2){border-right:0}.strip div{border-bottom:1px solid var(--line)}}
.alert{background:#fff5f0;border-top:1px solid #ffd9c2;border-bottom:1px solid #ffd9c2;color:#b23b00;font-size:15px}
.alert .w{padding-top:10px;padding-bottom:10px}
.alert b{color:var(--red)}
section.sec{padding:56px 0}
section.sec.alt{background:var(--soft)}
.st{text-align:center;margin-bottom:34px}
.st h2{font-size:30px;margin:0;font-weight:800;line-height:1.35}
.st .en{display:block;color:#b5bdb8;font-size:13px;letter-spacing:.18em;text-transform:uppercase;margin-top:2px}
.st:after{content:"";display:block;width:48px;height:4px;background:var(--o);border-radius:2px;margin:12px auto 0}
.st p{color:var(--muted);margin:12px auto 0;max-width:680px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid.four{grid-template-columns:repeat(4,1fr)}
.grid.two{grid-template-columns:repeat(2,1fr)}
@media (max-width:980px){.grid.four{grid-template-columns:1fr 1fr}}
@media (max-width:820px){.grid,.grid.two{grid-template-columns:1fr}}
@media (max-width:520px){.grid.four{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:24px;transition:box-shadow .2s,transform .2s}
.card:hover{box-shadow:0 10px 30px rgba(0,0,0,.08);transform:translateY(-2px)}
.card p:last-child,.card ul:last-child{margin-bottom:0}
.svc{border-top:4px solid var(--g);text-align:center}
.svc .ic{width:64px;height:64px;border-radius:50%;background:var(--g1);color:var(--g);font-size:28px;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 12px}
.svc ul{text-align:left;font-size:15px;color:var(--ink2)}
.svc .more{display:inline-block;margin-top:10px;font-weight:650;text-decoration:none}
.why{text-align:center}
.why .n{width:52px;height:52px;border-radius:12px;background:var(--g);color:#fff;font-size:22px;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 12px}
.why p{font-size:15px;color:var(--ink2)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;counter-reset:s}
.steps div{position:relative;text-align:center;padding:0 16px}
.steps div:before{counter-increment:s;content:counter(s);display:flex;width:56px;height:56px;border-radius:50%;background:#fff;border:3px solid var(--g);color:var(--g);font-weight:800;font-size:22px;align-items:center;justify-content:center;margin:0 auto 12px;position:relative;z-index:1}
.steps div:after{content:"";position:absolute;top:28px;left:50%;width:100%;border-top:2px dashed #b9d6c5}
.steps div:last-child:after{display:none}
.steps p{font-size:15px;color:var(--ink2)}
@media (max-width:820px){.steps{grid-template-columns:1fr 1fr;gap:24px 0}.steps div:after{display:none}}
.faq .card{border-left:4px solid var(--g)}
.faq h3:before{content:"问";display:inline-block;background:var(--g);color:#fff;font-size:13px;width:22px;height:22px;line-height:22px;text-align:center;border-radius:4px;margin-right:8px;vertical-align:2px}
.cta{background:linear-gradient(120deg,#0f8a4b,#22b36b);color:#fff;text-align:center;padding:44px 0}
.cta h2{font-size:28px;margin:0 0 8px}
.cta p{color:#f0faf4}
.plan{text-align:center;position:relative;border-top:4px solid var(--g)}
.plan.hot{border-top-color:var(--o);box-shadow:0 10px 30px rgba(255,106,0,.12)}
.plan.hot:before{content:"推荐";position:absolute;top:-4px;right:16px;background:var(--o);color:#fff;font-size:13px;font-weight:700;padding:3px 10px;border-radius:0 0 6px 6px}
.plan .tag{display:inline-block;background:var(--g1);color:var(--g);font-size:13px;font-weight:650;padding:2px 12px;border-radius:999px;margin-bottom:8px}
.price{font-size:34px;font-weight:800;color:var(--red);margin:8px 0 10px;line-height:1.2}
.price small{font-size:14px;font-weight:500;color:var(--muted)}
.plan ul{text-align:left;font-size:15px;color:var(--ink2);list-style:none;padding:0}
.plan li:before{content:"✓";color:var(--g);font-weight:800;margin-right:8px}
.plan .btn{display:block;margin-top:14px;padding:10px}
.note{color:var(--muted);font-size:14px}
.pagehead{background:linear-gradient(120deg,#0f8a4b,#22b36b);color:#fff;padding:40px 0}
.pagehead h1{margin-bottom:8px}
.pagehead p{color:#f0faf4;max-width:760px;margin:0}
.tw{overflow-x:auto;border:1px solid var(--line);border-radius:8px;background:#fff}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:15.5px}
th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--g);color:#fff;font-weight:650}
tr:last-child td{border-bottom:0}
.qr{display:flex;gap:28px;align-items:center;flex-wrap:wrap}
.qr img{width:220px;height:auto;border:1px solid var(--line);border-radius:8px}
.float{position:fixed;right:16px;bottom:110px;z-index:30;background:#fff;border-radius:40px;padding:6px;box-shadow:0 8px 28px rgba(0,0,0,.16);cursor:pointer;outline:0}
.float .fbtn{width:60px;height:74px;border-radius:34px;background:var(--o);color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:13px;font-weight:700}
.float .pop{display:none;position:absolute;right:82px;bottom:0;background:#fff;border-radius:10px;padding:14px;box-shadow:0 12px 36px rgba(0,0,0,.2);text-align:center;width:206px;cursor:default}
.float .pop b{display:block;color:var(--g);font-size:15px;margin-bottom:8px}
.float .pop img{width:170px;height:auto;display:block;margin:0 auto 6px;border-radius:4px}
.float .pop span{display:block;font-size:13px;color:var(--ink2)}
.float .pop .m{color:var(--muted);font-size:12px;margin-top:2px;word-break:break-all}
.fw{position:fixed;opacity:0;pointer-events:none;right:0;bottom:0}.fshade{display:none;position:fixed;inset:0;z-index:29}
.fw:checked~.fshade{display:block}.fw:checked~.float .pop{display:block}.fw:focus-visible~.float{outline:2px solid var(--g)}
@media (hover:hover){.float:hover .pop{display:block}}
.float .fbtn{cursor:pointer}
@media (max-width:560px){.float{bottom:18px;right:10px}.float .fbtn{width:52px;height:60px}.float .pop{right:72px}}
footer{background:#1f2b25;color:#b8c9bf;font-size:14.5px}
footer .w{padding:36px 20px 20px;display:grid;grid-template-columns:2fr 1fr 1.3fr 150px;gap:28px}
@media (max-width:820px){footer .w{grid-template-columns:1fr 1fr}}
footer a{color:#b8c9bf;text-decoration:none;display:block;margin:3px 0}
footer a:hover{color:#fff}
footer b{display:block;margin-bottom:8px;color:#fff;font-size:15.5px}
footer img.q{width:120px;height:auto;border-radius:6px;display:block}
footer .copy{border-top:1px solid #33423a;text-align:center;padding:12px 20px;font-size:13px;color:#7f9388}

.banner .w>*,.grid>*,.steps>*,.strip .w>*{min-width:0}
@media (max-width:560px){header nav a.cta{display:none}.top .w{font-size:12px}}
.plat{background:var(--soft);border-bottom:1px solid var(--line);font-size:14.5px;color:var(--ink2)}
.plat .w{display:flex;gap:8px 10px;flex-wrap:wrap;align-items:center;padding-top:12px;padding-bottom:12px}
.plat i{font-style:normal;font-weight:700;background:#fff;border:1px solid var(--line);border-radius:4px;padding:3px 12px;color:var(--ink)}
section.data{background:linear-gradient(120deg,#0f8a4b,#22b36b);color:#fff}
section.data .st h2{color:#fff}
section.data .st .en{color:#d3f0df}
section.data .grid>div{text-align:center;padding:8px 12px}
section.data b{display:block;font-size:44px;font-weight:800;color:#ffd54a;line-height:1.2}
section.data span{display:block;font-size:16px;margin-top:6px}
section.data small{display:block;font-size:13px;color:#e0f5e9;margin-top:6px}
.chk{background:#fff;color:var(--ink);border-radius:14px;padding:8px 22px 10px;box-shadow:0 14px 44px rgba(0,0,0,.2)}
.chk .chd{display:flex;justify-content:space-between;align-items:center;padding:14px 0;font-size:14.5px;color:var(--muted)}
.chk .chd i{font-style:normal;background:var(--g1);color:var(--g);font-weight:700;font-size:13px;padding:3px 12px;border-radius:999px}
.chk .row{display:flex;align-items:center;gap:12px;padding:11px 0;border-top:1px solid var(--line)}
.chk .row em{font-style:normal;flex:none;width:30px;height:30px;border-radius:8px;background:var(--g1);color:var(--g);font-weight:800;display:flex;align-items:center;justify-content:center}
.chk .row div{flex:1;min-width:0}
.chk .row b{display:block;font-size:15.5px;line-height:1.4}
.chk .row span{display:block;font-size:13px;color:var(--muted);line-height:1.4}
.chk .row u{text-decoration:none;font-size:13px;color:var(--g);font-weight:650;white-space:nowrap}
.chk .row u.y{color:var(--o)}
.chk .row u.s{color:var(--muted)}
.promo{background:linear-gradient(110deg,#ff5a1f 0%,#ff7a1a 55%,#ffa23a 100%);color:#fff}
.promo .w{padding-top:16px;padding-bottom:14px}
.promo input{position:absolute;opacity:0;pointer-events:none}
.promo .tabs{display:flex;gap:10px;flex-wrap:wrap}
.promo label{cursor:pointer;padding:5px 18px;border-radius:999px;background:rgba(255,255,255,.2);font-size:15px;font-weight:600}
#pm0:checked~.tabs label[for=pm0],#pm1:checked~.tabs label[for=pm1],#pm2:checked~.tabs label[for=pm2]{background:#fff;color:#d94a00}
.promo input:focus-visible~.tabs label{outline:2px solid #fff;outline-offset:2px}
.promo .pane{display:none;grid-template-columns:auto auto 1fr;align-items:center;gap:6px 22px;padding-top:6px}
#pm0:checked~.p0,#pm1:checked~.p1,#pm2:checked~.p2{display:grid}
.promo .pre{font-size:22px}
.promo .pane b{font-size:clamp(52px,8vw,96px);font-weight:900;line-height:1.05;color:#fff3b0;letter-spacing:-.02em;text-shadow:0 2px 0 rgba(0,0,0,.08)}
.promo strong{display:block;font-size:clamp(20px,2.6vw,30px);line-height:1.3;margin-bottom:10px}
.promo .pbtn{display:inline-block;background:#fff3b0;color:#b23b00;font-weight:800;text-decoration:none;padding:9px 20px;border-radius:6px}
.promo small{grid-column:1/-1;font-size:13px;color:#fff1e6}
@media (max-width:820px){.promo .pane{grid-template-columns:1fr;gap:2px}}
.plan{display:flex;flex-direction:column}.plan ul{margin-bottom:12px}.plan .btn{margin-top:auto}.plan .note{margin-bottom:14px}
.plan .tag{align-self:center}
.float .pop .wxgo{display:block;background:#07c160;color:#fff;text-decoration:none;font-weight:700;font-size:14px;padding:8px;border-radius:6px;margin:8px 0 4px}
.fshade{cursor:pointer;-webkit-tap-highlight-color:transparent}
.quick{background:var(--g1);border-left:5px solid var(--g);border-radius:8px;padding:18px 22px;margin-bottom:22px}
.quick b{display:block;color:var(--g);margin-bottom:6px}
.quick p{margin:0;font-size:17px}
.toc{display:flex;gap:10px;flex-wrap:wrap}
.toc a{background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 16px;text-decoration:none;font-size:15px;color:var(--ink)}
.toc a:hover{border-color:var(--g);color:var(--g)}
.card.qa{display:block;text-decoration:none;color:var(--ink)}
.card.qa h3{color:var(--g)}
.card.qa p{color:var(--ink2);font-size:15px}
.art{max-width:860px}
.art h2{font-size:23px;margin:34px 0 10px;padding-left:12px;border-left:4px solid var(--o);line-height:1.4}
.art p,.art li{font-size:17px}
.art .tw{margin:14px 0}
.crumb{font-size:14px;color:var(--muted)}
.crumb a{color:var(--muted)}
.pagehead p:empty{display:none}
@media (max-width:980px){header nav{gap:2px 16px;font-size:15px}}