:root{
  --ink:#16242c;--ink2:#41545f;--muted:#7f8f99;--gold:#b78d4c;--gold2:#d4b277;
  --teal:#1f5f63;--teal-d:#16424a;--cream:#f6f1e8;--line:#e7e0d2;--bg:#fbfaf7;--card:#fff;
  --good:#2e7d5b;--warn:#b0492f;--shadow:0 10px 34px rgba(20,36,44,.10);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:1140px;margin:0 auto;padding:0 24px}

/* ---------- Header ---------- */
header.nav{position:sticky;top:0;z-index:100;background:rgba(251,250,247,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav .row{display:flex;align-items:center;justify-content:space-between;height:70px;gap:16px}
.brand{display:flex;align-items:center;gap:10px}
.brand img{height:44px;width:auto;display:block}
.brand .bt{line-height:1.15}
.brand .bt b{font-size:15.5px;letter-spacing:.5px;display:block;color:var(--ink)}
.brand .bt small{font-size:9.5px;color:var(--muted);letter-spacing:2px;font-weight:600}
.menu{display:flex;gap:22px;font-size:14.5px;color:var(--ink2)}
.menu a{position:relative;padding:4px 0;font-weight:500}
.menu a:hover,.menu a.active{color:var(--gold)}
.menu a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--gold);border-radius:2px}
.nav-right{display:flex;align-items:center;gap:14px}
.lang{font-size:13px;color:var(--ink2);cursor:pointer;border:1px solid var(--line);border-radius:20px;padding:6px 13px;font-weight:700;background:#fff;white-space:nowrap}
.lang:hover{border-color:var(--gold);color:var(--gold)}
body.lang-zh [data-lang="en"]{display:none}
body.lang-en [data-lang="zh"]{display:none}
.mobile-menu .lang{display:inline-block;margin:10px 24px;text-align:center}
.nav-cta{background:var(--gold);color:#1c2a31;padding:9px 18px;border-radius:30px;font-weight:700;font-size:14px;cursor:pointer;white-space:nowrap}
.nav-cta:hover{background:var(--gold2)}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;background:none;border:none}
.burger span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{display:none;flex-direction:column;background:#fff;border-bottom:1px solid var(--line);padding:8px 0}
.mobile-menu.open{display:flex}
.mobile-menu a{padding:13px 24px;font-size:15.5px;color:var(--ink2);border-bottom:1px solid var(--line)}
.mobile-menu a:last-child{border-bottom:none}
.mobile-menu a.active{color:var(--gold);font-weight:700}
@media(max-width:980px){
  .menu{display:none}
  .nav-cta{display:none}
  .burger{display:flex}
}

/* ---------- Buttons ---------- */
.btn{padding:13px 24px;border-radius:30px;font-weight:700;font-size:15px;cursor:pointer;border:none;transition:.15s;display:inline-block}
.btn-gold{background:var(--gold);color:#1c2a31}.btn-gold:hover{background:var(--gold2)}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.45)}.btn-ghost:hover{border-color:#fff}
.btn-teal{background:var(--teal);color:#fff}.btn-teal:hover{background:var(--teal-d)}
.btn-outline{background:#fff;color:var(--teal);border:1.5px solid var(--teal)}.btn-outline:hover{background:var(--teal);color:#fff}

/* ---------- Page hero (inner pages) ---------- */
.phero{background:linear-gradient(125deg,#15242c,#1f4a50 60%,#2a5d61);color:#fff;padding:54px 0 48px;position:relative;overflow:hidden}
.phero::after{content:"";position:absolute;right:-90px;top:-70px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(212,178,119,.26),transparent 65%)}
.phero .wrap{position:relative;z-index:2}
.phero .k{color:var(--gold2);font-weight:800;letter-spacing:3px;font-size:12.5px;text-transform:uppercase}
.phero h1{font-size:33px;font-weight:800;margin:10px 0 8px;line-height:1.25}
.phero p{color:#d6e4e4;max-width:680px;font-size:16px}

/* ---------- Hero (home) ---------- */
.hero{background:linear-gradient(125deg,#15242c,#1f4a50 60%,#2a5d61);color:#fff;padding:66px 0 60px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-100px;top:-80px;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(212,178,119,.3),transparent 65%)}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center}
.hero h1{font-size:38px;line-height:1.25;font-weight:800;letter-spacing:.5px}
.hero h1 .g{color:var(--gold2)}
.hero .en{font-size:15px;color:#bcd4d4;letter-spacing:1px;margin:14px 0 6px;font-weight:600}
.hero p.sub{color:#d6e4e4;font-size:16px;margin-top:8px}
.hero .btns{margin-top:24px;display:flex;gap:12px;flex-wrap:wrap}
@media(max-width:860px){.hero .wrap{grid-template-columns:1fr}.hero h1{font-size:29px}}

/* ---------- AI rent tool ---------- */
.tool{background:#fff;color:var(--ink);border-radius:18px;padding:24px;box-shadow:0 20px 50px rgba(0,0,0,.25)}
.tool .badge{display:inline-block;background:#eef4f4;color:var(--teal);font-size:11px;font-weight:800;letter-spacing:1px;padding:4px 10px;border-radius:20px}
.tool h3{font-size:19px;margin:10px 0 4px}
.tool p.t{font-size:13px;color:var(--muted);margin-bottom:14px}
.tool label{font-size:12px;color:var(--ink2);font-weight:700}
.tool input,.tool select{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:14px;margin:5px 0 12px;font-family:inherit}
.tool input:focus,.tool select:focus{outline:none;border-color:var(--teal)}
.tool .go{width:100%;background:var(--teal);color:#fff;border:none;padding:13px;border-radius:10px;font-weight:700;font-size:15px;cursor:pointer}
.tool .go:hover{background:var(--teal-d)}
.result{margin-top:16px;border-top:1px dashed var(--line);padding-top:16px;display:none}
.result.show{display:block;animation:fade .4s ease}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.res-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;text-align:center;margin-bottom:14px}
.res-grid .c{background:var(--cream);border-radius:10px;padding:12px 6px}
.res-grid .n{font-size:18px;font-weight:800;color:var(--teal);line-height:1.2}
.res-grid .l{font-size:11px;color:var(--muted);margin-top:3px}
.leadbox{background:#f6f1e8;border:1px solid var(--line);border-radius:12px;padding:14px}
.leadbox b{font-size:13.5px}
.leadbox .frm{display:flex;gap:8px;margin-top:8px}
.leadbox input{margin:0;flex:1}
.leadbox button{background:var(--gold);color:#1c2a31;border:none;border-radius:10px;padding:0 18px;font-weight:700;cursor:pointer;white-space:nowrap}
.ok-msg{display:none;color:var(--good);font-weight:700;font-size:14px;margin-top:8px}

/* ---------- Trust bar ---------- */
.trust{background:var(--cream);border-bottom:1px solid var(--line)}
.trust .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding:26px 24px}
.trust .m{text-align:center}
.trust .n{font-size:28px;font-weight:800;color:var(--teal)}
.trust .l{font-size:12.5px;color:var(--muted);margin-top:2px}
@media(max-width:680px){.trust .wrap{grid-template-columns:1fr 1fr}}

/* ---------- Sections ---------- */
section.blk{padding:62px 0}
.head{text-align:center;max-width:700px;margin:0 auto 36px}
.head .k{color:var(--gold);font-weight:800;font-size:12.5px;letter-spacing:3px;text-transform:uppercase}
.head h2{font-size:30px;font-weight:800;margin:8px 0 6px}
.head p{color:var(--ink2)}

/* feature cards */
.feat{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:860px){.feat{grid-template-columns:1fr}}
.fcard{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow)}
.fcard .ic{width:42px;height:42px;border-radius:11px;background:#eef4f4;color:var(--teal);display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:12px}
.fcard h4{font-size:16px;margin-bottom:5px}
.fcard p{font-size:13.5px;color:var(--ink2)}

/* image service cards */
.icards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:860px){.icards{grid-template-columns:1fr}}
.icard{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow)}
.icard .im{height:180px;background-size:cover;background-position:center}
.icard .bd{padding:18px}
.icard h4{font-size:17px;margin-bottom:5px}
.icard p{font-size:13.5px;color:var(--ink2)}

/* tabs */
.tabs{display:flex;justify-content:center;gap:10px;margin-bottom:26px;flex-wrap:wrap}
.tab{padding:11px 24px;border-radius:30px;border:1.5px solid var(--line);background:#fff;font-weight:700;cursor:pointer;color:var(--ink2)}
.tab.active{background:var(--teal);color:#fff;border-color:var(--teal)}
.pane{display:none}.pane.active{display:block;animation:fade .35s ease}

/* rentals */
.rentbar{display:flex;gap:10px;justify-content:center;margin-bottom:22px;flex-wrap:wrap}
.chip{padding:8px 16px;border-radius:24px;border:1px solid var(--line);background:#fff;font-size:13.5px;cursor:pointer;color:var(--ink2);font-weight:600}
.chip.active{background:var(--gold);color:#1c2a31;border-color:var(--gold)}
.rgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:860px){.rgrid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.rgrid{grid-template-columns:1fr}}
.rcard{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow);transition:.18s}
.rcard:hover{transform:translateY(-4px)}
.rimg{height:160px;position:relative;display:flex;align-items:flex-end;padding:10px;color:#fff;font-weight:700;background-size:cover;background-position:center}
.rimg::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(0,0,0,.55))}
.rimg .price,.rimg .vr{position:relative;z-index:2}
.rimg .price{background:rgba(0,0,0,.5);padding:4px 10px;border-radius:8px;font-size:14px}
.rimg .vr{position:absolute;top:10px;right:10px;background:rgba(255,255,255,.92);color:var(--teal);font-size:11px;font-weight:800;padding:3px 8px;border-radius:6px}
.rbody{padding:14px}
.rbody h4{font-size:15px}
.rbody .meta{font-size:12.5px;color:var(--muted);margin:3px 0 10px}
.rbody .apply{display:block;text-align:center;background:#eef4f4;color:var(--teal);font-weight:700;padding:9px;border-radius:9px;cursor:pointer;font-size:13.5px}
.rbody .apply:hover{background:var(--teal);color:#fff}

/* cases */
.cgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:860px){.cgrid{grid-template-columns:1fr}}
.ccard{background:linear-gradient(180deg,#fff,#fbf7ef);border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow)}
.ccard .loc{font-weight:800;color:var(--ink)}
.ccard .type{font-size:12.5px;color:var(--muted);margin-bottom:14px}
.cmp{margin:6px 0}
.cmp .bad{color:#a05}
.cmp .gd{color:var(--good);font-weight:800;font-size:18px}
.cmp .mk{font-size:13px;color:var(--ink2)}
.ribbon{display:inline-block;background:var(--good);color:#fff;font-size:12px;font-weight:700;padding:4px 12px;border-radius:20px;margin-top:8px}
.soon{display:inline-block;background:#fbf1e6;color:#a4671f;font-size:12px;font-weight:700;padding:4px 12px;border-radius:20px;margin-top:8px}

/* team + reviews */
.tgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:860px){.tgrid{grid-template-columns:1fr}}
.reviews{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
@media(max-width:760px){.reviews{grid-template-columns:1fr}}
.rv{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--shadow)}
.rv .stars{color:var(--gold);font-size:16px;letter-spacing:2px}
.rv p{font-size:14px;color:var(--ink2);margin:10px 0}
.rv .who{font-size:13px;color:var(--ink);font-weight:700}
.rv .who span{color:var(--muted);font-weight:500}

/* CTA */
.cta{background:linear-gradient(125deg,#15242c,#235157);color:#fff;border-radius:22px;padding:46px;text-align:center;margin:60px auto;max-width:900px}
.cta h2{font-size:28px;font-weight:800}
.cta p{color:#cfe0e0;margin:8px 0 20px}

/* generic content */
.prose{max-width:820px;margin:0 auto}
.prose h3{font-size:20px;color:var(--teal);margin:26px 0 8px}
.prose p{margin:10px 0;color:var(--ink2)}
.prose ul{margin:10px 0 10px 22px}.prose li{margin:7px 0;color:var(--ink2)}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:var(--shadow);margin:16px 0}
.split{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:center}
@media(max-width:820px){.split{grid-template-columns:1fr}}

/* forms */
.field{margin:12px 0}
.field label{display:block;font-size:13px;font-weight:700;color:var(--ink2);margin-bottom:5px}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:14.5px;font-family:inherit;background:#fff}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--teal)}
.consent{display:flex;gap:9px;align-items:flex-start;font-size:12.5px;color:var(--muted);margin:10px 0}
.consent input{margin-top:3px}

/* faq */
.faq{background:#fff;border:1px solid var(--line);border-radius:12px;margin:10px 0;overflow:hidden}
.faq summary{padding:16px 18px;font-weight:700;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--gold);font-size:20px}
.faq[open] summary::after{content:"−"}
.faq .a{padding:0 18px 16px;color:var(--ink2);font-size:14px}

/* ---------- Footer ---------- */
footer.ft{background:#13202a;color:#aebfc4;padding:46px 0 26px;font-size:13.5px}
footer.ft .grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px;padding-bottom:26px;border-bottom:1px solid rgba(255,255,255,.1)}
@media(max-width:820px){footer.ft .grid{grid-template-columns:1fr}}
footer.ft img{height:54px;margin-bottom:12px}
footer.ft h5{color:#fff;font-size:13px;letter-spacing:1px;margin-bottom:12px;text-transform:uppercase}
footer.ft a{display:block;color:#aebfc4;padding:4px 0}
footer.ft a:hover{color:var(--gold2)}
footer.ft .ci{margin:5px 0;line-height:1.7}
footer.ft .ci b{color:#e7eef0}
footer.ft .bottom{padding-top:18px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;color:#7f939a;font-size:12.5px}
footer.ft .bottom a{display:inline;color:#7f939a}

/* AI assistant widget */
.fab{position:fixed;right:22px;bottom:22px;z-index:200;background:var(--teal);color:#fff;border:none;border-radius:30px;padding:14px 20px;font-weight:700;cursor:pointer;box-shadow:0 12px 30px rgba(31,95,99,.4);display:flex;gap:8px;align-items:center}
.fab:hover{background:var(--teal-d)}
.chat{position:fixed;right:22px;bottom:80px;z-index:200;width:340px;max-width:calc(100vw - 44px);background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 24px 60px rgba(0,0,0,.28);display:none;overflow:hidden}
.chat.open{display:block;animation:fade .3s ease}
.chat .ch-top{background:var(--teal);color:#fff;padding:14px 16px;font-weight:700;display:flex;justify-content:space-between;align-items:center}
.chat .ch-top span{font-size:12px;font-weight:500;color:#bfe0e2}
.ch-body{height:300px;overflow-y:auto;padding:14px;background:#f8faf9}
.bub{max-width:85%;padding:9px 13px;border-radius:14px;margin-bottom:10px;font-size:13.5px;line-height:1.55}
.bub.ai{background:#fff;border:1px solid var(--line);border-bottom-left-radius:4px}
.bub.me{background:var(--teal);color:#fff;margin-left:auto;border-bottom-right-radius:4px}
.ch-qs{padding:10px 12px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:6px;background:#fff}
.ch-qs button{font-size:12px;background:#eef4f4;color:var(--teal);border:none;border-radius:16px;padding:6px 11px;cursor:pointer}
.ch-qs button:hover{background:var(--teal);color:#fff}

/* modal */
.modal{position:fixed;inset:0;z-index:300;background:rgba(16,30,36,.6);display:none;align-items:center;justify-content:center;padding:20px}
.modal.open{display:flex;animation:fade .25s ease}
.modal .box{background:#fff;border-radius:18px;max-width:430px;width:100%;padding:28px;text-align:center}
.modal .box .ic{font-size:40px}
.modal .box h3{margin:10px 0 6px}
.modal .box p{color:var(--ink2);font-size:14px}
.modal .box button{margin-top:18px;background:var(--teal);color:#fff;border:none;padding:11px 26px;border-radius:10px;font-weight:700;cursor:pointer}

.demo-flag{background:#16242c;color:#d4b277;text-align:center;font-size:12.5px;padding:7px 12px;letter-spacing:.5px}