:root{--ink:#1d1d1f;--mut:#6e6e73;--bg:#fff;--bg2:#f5f5f7;--line:#d2d2d7;--brand:#0f766e;--brand2:#14b8a6}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.55 -apple-system,BlinkMacSystemFont,"SF Pro SC","PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
.wrap{max-width:1024px;margin:0 auto;padding:0 22px}
a{color:var(--brand);text-decoration:none}
img{max-width:100%}
/* 顶栏：苹果式细条 */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.84);backdrop-filter:saturate(180%) blur(20%);border-bottom:1px solid rgba(0,0,0,.08)}
.nav{display:flex;align-items:center;gap:24px;height:48px}
.logo img{height:20px;display:block}
.nav a.lk{font-size:12.5px;color:#424245;letter-spacing:.01em;padding:0}
.nav a.lk:hover{color:#000}
.nav a.lk.on{color:#000;font-weight:600}
.nav .sp{flex:1}
.btn{display:inline-block;border-radius:980px;padding:8px 16px;font-size:14px;font-weight:500;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:.15s}
.btn.pri{background:var(--brand);color:#fff}
.btn.pri:hover{background:#0b5f58}
.btn.ghost{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn.big{padding:13px 26px;font-size:17px}
.mnav{display:none;margin-left:auto;background:none;border:0;font-size:14px;color:#1d1d1f}
.mlink{display:none}
@media(max-width:900px){
  .nav a.lk,.nav .desk{display:none}
  .mnav{display:block}
  .mlink{display:block;position:fixed;left:0;right:0;top:48px;z-index:49;background:rgba(255,255,255,.98);backdrop-filter:blur(20px);border-bottom:1px solid rgba(0,0,0,.08);padding:8px 22px 16px;transform:translateY(-6px);opacity:0;pointer-events:none;transition:.18s}
  .mlink.on{transform:none;opacity:1;pointer-events:auto}
  .mlink a{display:block;padding:12px 0;color:#1d1d1f;font-size:17px;border-bottom:1px solid rgba(0,0,0,.06)}
  .mlink a:last-child{border-bottom:0}
  .mlink a.on{color:var(--brand);font-weight:600}
}
/* 首页 Hero：苹果式大标题 */
.heroX{padding:84px 0 26px;text-align:center;background:#fff}
.heroX .eyebrow{font-size:14px;letter-spacing:.02em;color:var(--brand);font-weight:600;margin-bottom:12px}
.heroX h1{font-size:clamp(38px,7.2vw,76px);line-height:1.06;letter-spacing:-.018em;font-weight:700;margin:0 0 16px}
.heroX h1 em{font-style:normal;color:var(--brand)}
.heroX p.sub{font-size:clamp(17px,2.1vw,21px);line-height:1.5;color:var(--mut);max-width:740px;margin:0 auto 20px}
.links{display:flex;gap:26px;justify-content:center;align-items:center;font-size:17px;flex-wrap:wrap}
.links a{font-weight:500}
.links a:hover{text-decoration:underline}
.showcase{display:flex;justify-content:center;gap:24px;padding:34px 0 6px;flex-wrap:wrap}
.phone{width:236px;border-radius:38px;border:9px solid #1d1d1f;background:#000;overflow:hidden;box-shadow:0 26px 60px rgba(0,0,0,.18)}
.phone img{display:block;width:100%}
.phone.tilt{transform:rotate(-4deg) translateY(10px)}
@media(max-width:640px){.phone{width:190px}.phone.tilt{display:none}}
/* 产品瓷砖 */
.tiles{padding:26px 0 60px}
.tileGrid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.tile{display:block;background:var(--bg2);border-radius:22px;padding:46px 30px 30px;text-align:center;color:inherit;transition:transform .25s ease}
.tile:hover{transform:scale(1.006)}
.tile .ico{font-size:42px;line-height:1}
.tile h3{font-size:clamp(24px,3vw,32px);font-weight:700;letter-spacing:-.01em;margin:14px 0 8px}
.tile p{font-size:16.5px;line-height:1.5;color:var(--mut);max-width:430px;margin:0 auto 14px}
.tile .more{font-size:16px;color:var(--brand);font-weight:500}
.tile.dark{background:#1d1d1f;color:#f5f5f7}
.tile.dark p{color:#a1a1a6}
.tile.dark .more{color:#7dd3c7}
/* 大数字 */
.stats{background:var(--bg2);padding:64px 0;text-align:center}
.stats .row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:26px}
.stats .n{font-size:clamp(38px,6vw,64px);font-weight:700;letter-spacing:-.02em;line-height:1}
.stats .l{font-size:15px;color:var(--mut);margin-top:8px}
/* 通用区块 */
section{padding:64px 0}
section.alt{background:var(--bg2)}
.kicker{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.02em;color:var(--brand);margin-bottom:10px}
h2.t{font-size:clamp(28px,4.4vw,44px);line-height:1.1;letter-spacing:-.015em;font-weight:700;margin:0 0 10px}
p.d{color:var(--mut);font-size:17px;margin:0 0 26px;max-width:820px}
.grid{display:grid;gap:14px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid rgba(0,0,0,.08);border-radius:18px;padding:26px;transition:.2s}
.card:hover{box-shadow:0 14px 34px rgba(0,0,0,.07);transform:translateY(-1px)}
.card .ic{font-size:24px}
.card b{display:block;font-size:17.5px;margin:8px 0 6px}
.card span{color:var(--mut);font-size:15px;display:block;line-height:1.55}
a.card{color:inherit}
.card .more{display:inline-block;margin-top:12px;font-size:14.5px;font-weight:500;color:var(--brand)}
/* 子页头 */
.pagehero{padding:72px 0 34px;background:#fff;text-align:center;border-bottom:1px solid rgba(0,0,0,.08)}
.pagehero h1{font-size:clamp(32px,5vw,52px);line-height:1.08;letter-spacing:-.015em;margin:0 0 12px}
.pagehero p{margin:0 auto;color:var(--mut);max-width:760px;font-size:17.5px}
.bc{font-size:13px;color:#86868b;margin-bottom:14px}
.bc a{color:#86868b}
/* 折叠 */
details.fold{background:#fff;border:1px solid rgba(0,0,0,.08);border-radius:16px;margin-top:14px;overflow:hidden}
details.fold>summary{cursor:pointer;list-style:none;padding:18px 20px;font-weight:600;font-size:16px;color:#1d1d1f;display:flex;align-items:center;gap:10px;user-select:none}
details.fold>summary::-webkit-details-marker{display:none}
details.fold>summary::after{content:"＋";margin-left:auto;color:var(--brand);font-weight:600}
details.fold[open]>summary::after{content:"－"}
details.fold>summary:hover{background:#fafafa}
details.fold .fbody{padding:6px 20px 20px;border-top:1px solid rgba(0,0,0,.06)}
details.fold .fbody p{font-size:15px;color:var(--mut)}
/* chips */
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.chip{font-size:13.5px;background:#fff;border:1px solid rgba(0,0,0,.12);border-radius:980px;padding:5px 13px;color:#424245}
.chip.own{border-color:#99f6e4;background:#f0fdfa;color:#0f766e;font-weight:600}
.chip.soon{border-style:dashed;color:#86868b}
.tag{display:inline-block;font-size:11.5px;font-weight:600;border-radius:980px;padding:2px 9px;margin-left:8px;vertical-align:2px}
.tag.own{background:#ecfdf5;color:#047857;border:1px solid #a7f3d0}
.tag.part{background:#eff6ff;color:#1d4ed8;border:1px solid #bfdbfe}
.tag.soon{background:#f5f5f7;color:#6e6e73;border:1px dashed #d2d2d7}
/* 流程 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.flow .st{background:#fff;border:1px solid rgba(0,0,0,.08);border-radius:16px;padding:20px}
.flow .st:before{counter-increment:s;content:counter(s);display:inline-flex;width:26px;height:26px;border-radius:50%;background:var(--brand);color:#fff;align-items:center;justify-content:center;font-weight:600;font-size:13px;margin-bottom:10px}
.flow .st b{display:block;font-size:15.5px}
.flow .st span{font-size:13.5px;color:var(--mut)}
/* 表格 */
.tw{overflow:auto;border:1px solid rgba(0,0,0,.08);border-radius:16px;background:#fff}
table{border-collapse:collapse;width:100%;min-width:640px;font-size:14.5px}
th,td{text-align:left;padding:12px 16px;border-bottom:1px solid rgba(0,0,0,.06);vertical-align:top}
th{background:#fafafa;font-size:13.5px;color:var(--mut);font-weight:600}
tr:last-child td{border-bottom:0}
/* 下载 */
.dl{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
a.dlc{display:flex;align-items:center;justify-content:space-between;gap:14px;background:#fff;border:1px solid rgba(0,0,0,.1);border-radius:18px;padding:18px 20px;color:inherit;transition:.2s}
a.dlc:hover{border-color:var(--brand);box-shadow:0 10px 26px rgba(15,118,110,.08)}
.dlc .n{font-weight:600;font-size:16.5px}
.dlc .n i{font-style:normal;color:var(--brand);margin-right:6px}
.dlc .d{color:var(--mut);font-size:13.5px;margin-top:3px}
.qrbox{display:flex;flex-direction:column;align-items:center;gap:4px;flex:none}
.qrbox img{width:92px;height:92px;border:1px solid rgba(0,0,0,.08);border-radius:12px;background:#fff;display:block}
.qrbox span{font-size:10.5px;color:#86868b;white-space:nowrap}
.plat{display:flex;align-items:center;gap:10px;margin:26px 0 12px;font-weight:600;font-size:17px}
.pchip{font-size:12px;font-weight:600;border-radius:980px;padding:3px 10px;background:#eef2ff;color:#3730a3}
.pchip.ios{background:#fdf2f8;color:#9d174d}
.note{background:#f5f5f7;border:1px solid rgba(0,0,0,.06);border-radius:14px;padding:13px 16px;font-size:14.5px;color:#424245;margin:14px 0 0}
.note.warm{background:#fffbeb;border-color:#fde68a;color:#92400e}
.note.ok{background:#f0fdf4;border-color:#bbf7d0;color:#166534}
/* 联系区块 */
.contact{margin-top:22px;background:#f5f5f7;border:1px solid rgba(0,0,0,.06);border-radius:16px;padding:20px 22px;font-size:14.5px;line-height:1.9;color:#424245}
.contact .ck{font-size:12.5px;font-weight:600;letter-spacing:.02em;color:var(--brand)}
.contact .cn{font-size:17px;font-weight:600;color:#1d1d1f;margin:4px 0 2px}
.contact .cl{color:var(--mut)}
.contact.onDark{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.12);color:#d2d2d7}
.contact.onDark .cn{color:#f5f5f7}
.contact.onDark .cl{color:#a1a1a6}
.contact.onDark a{color:#7dd3c7}
.step{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.box{background:#fff;border:1px solid rgba(0,0,0,.08);border-radius:18px;padding:22px}
.box h3{margin:0 0 10px;font-size:17.5px;font-weight:600}
.box ol{margin:0;padding-left:20px;color:#424245;font-size:15px}
.box ol li{margin:7px 0}
.box code{background:#f5f5f7;border-radius:6px;padding:1px 6px;font-size:14px}
video{aspect-ratio:16/9;object-fit:cover;width:100%;border-radius:14px;background:#000;display:block}
/* 登录页 */
.loginWrap{max-width:420px;margin:0 auto;padding:56px 0 80px}
.loginWrap .lglogo{text-align:center;margin-bottom:18px}
.loginWrap .lglogo img{height:40px}
.loginWrap h1{text-align:center;font-size:30px;letter-spacing:-.01em;margin:0 0 6px}
.loginWrap .lgsub{text-align:center;color:var(--mut);font-size:15px;margin:0 0 26px}
.loginForm input{width:100%;box-sizing:border-box;border:1px solid rgba(0,0,0,.16);border-radius:12px;padding:13px 14px;font-size:16px;margin-bottom:12px;outline:none;background:#fff;-webkit-appearance:none}
.loginForm input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,118,110,.12)}
.pw{position:relative}
.pw input{padding-right:64px}
.pw .eye{position:absolute;right:6px;top:5px;bottom:5px;background:none;border:0;color:var(--brand);font-size:13.5px;font-weight:600;padding:0 10px;cursor:pointer}
.lgbtn{width:100%;border:0;border-radius:12px;background:var(--brand);color:#fff;font-size:17px;font-weight:600;padding:13px;cursor:pointer;margin-top:4px}
.lgbtn:disabled{opacity:.6}
.lgerr{color:#b91c1c;font-size:13.5px;min-height:20px;margin:8px 2px 0}
.lghelp{display:flex;justify-content:space-between;font-size:13px;color:var(--mut);margin-top:16px;flex-wrap:wrap;gap:8px}
.lghelp a{color:var(--brand)}
.lgalt{font-size:13px;color:#86868b;margin-top:22px;text-align:center;line-height:1.9}
.lgalt a{color:#424245}
.lgnote{background:#f5f5f7;border-radius:12px;padding:12px 14px;font-size:13px;color:var(--mut);margin-top:20px}
/* CTA 深色 */
.ctaDark{background:#000;color:#f5f5f7;text-align:center;padding:84px 0}
.ctaDark h2{font-size:clamp(30px,5vw,52px);letter-spacing:-.015em;margin:0 0 12px}
.ctaDark p{color:#a1a1a6;font-size:17px;margin:0 0 26px}
.ctaDark .links a{color:#7dd3c7}
/* 页脚：苹果式浅灰 */
footer{background:#f5f5f7;color:#6e6e73;padding:34px 0 44px;font-size:12.5px;border-top:1px solid rgba(0,0,0,.08)}
footer .fl{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
footer a{color:#424245}
footer a:hover{text-decoration:underline}
.foot-brand{color:#1d1d1f;font-weight:600;font-size:13px}
.fnav{display:flex;gap:16px;flex-wrap:wrap;margin-top:12px}
.fnav a{color:#6e6e73}
/* 合规页 */
.legal{max-width:820px;padding:56px 0 84px}
.legal-meta{font-size:13px;color:#86868b;margin-bottom:10px}
.legal h1{font-size:clamp(30px,4.5vw,42px);line-height:1.15;letter-spacing:-.015em;margin:0 0 18px}
.legal h2{font-size:21px;line-height:1.3;margin:34px 0 10px;letter-spacing:-.01em}
.legal p,.legal li{font-size:15.5px;line-height:1.85;color:#424245}
.legal p{margin:0 0 12px}
.legal ul{padding-left:22px;margin:0 0 14px}
.legal li{margin:4px 0}
.legal-table{width:100%;border-collapse:collapse;margin:14px 0 20px;font-size:14px}
.legal-scroll{max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;margin:14px 0 20px}
.legal-scroll .legal-table{margin:0;min-width:560px}
.legal-table th,.legal-table td{border:1px solid rgba(0,0,0,.12);padding:9px 10px;text-align:left;vertical-align:top;line-height:1.6}
.legal-table th{background:#f5f5f7;font-weight:600;color:#1d1d1f}
.legal-table td{color:#424245}
@media(max-width:640px){.legal{padding:38px 0 60px}.legal-table{display:table;table-layout:fixed;width:calc(100vw - 44px)!important;max-width:calc(100vw - 44px);white-space:normal}.legal-table th,.legal-table td{white-space:normal;min-width:0;padding:6px 5px;font-size:11.5px;word-break:break-word}}
/* 手机底栏 */
.mbar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:60;background:rgba(255,255,255,.9);backdrop-filter:blur(20px);border-top:1px solid rgba(0,0,0,.08);padding:9px 14px calc(9px + env(safe-area-inset-bottom))}
.mbar a{display:block;text-align:center;background:var(--brand);color:#fff;font-weight:600;border-radius:980px;padding:12px;font-size:15.5px}
.mbar{transform:translateY(130%);transition:transform .22s ease}
.mbar.on{transform:none}
.nw{white-space:nowrap}
@media(max-width:900px){
  .g2,.g3,.dl,.step,.flow{grid-template-columns:1fr}
  .g4{grid-template-columns:repeat(2,1fr)}
  .g4 .card{padding:18px}
  .g4 .card b{font-size:15.5px}
  .g4 .card span{font-size:13.5px}
  section{padding:44px 0}
  .heroX{padding:52px 0 16px}
  .heroX h1{font-size:36px}
  .tileGrid{grid-template-columns:1fr}
  .tile{padding:34px 22px 26px}
  .stats .row{grid-template-columns:1fr;gap:26px}
  .ctaDark{padding:56px 0}
  .pagehero{padding:44px 0 26px}
  .mbar{display:block}
  body{padding-bottom:78px}
  body{padding-bottom:70px}
}