:root{
  --bg:#f6f9fc; --card:#ffffff; --ink:#1f2937; --sub:#6b7280; --line:#eef2f7;
  --teal:#14b8a6; --teal-d:#0d9488; --blue:#0ea5e9; --purple:#8b5cf6;
  --amber-bg:#fffbeb; --amber-bd:#fde68a; --amber-tx:#92400e;
  --shadow:0 10px 40px -12px rgba(30,58,138,.12);
}
*{margin:0;padding:0;box-sizing:border-box;
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif}
body{background:var(--bg);color:var(--ink);min-height:100vh}
button{font-family:inherit;cursor:pointer;border:none}

/* header */
header{background:#fff;border-bottom:1px solid var(--line)}
.nav{max-width:1240px;margin:0 auto;display:flex;align-items:center;gap:14px;padding:16px 24px}

/* logo：中英文都不换行，宽度自然跟随文字 */
.logo{display:flex;align-items:center;gap:12px}
.logo .ic{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;color:#fff;font-size:22px;
  background:linear-gradient(135deg,#2dd4bf,#0d9488);box-shadow:0 4px 14px rgba(13,148,136,.35)}
.logo > div{display:flex;flex-direction:column;justify-content:center;white-space:nowrap}
.logo b{font-size:20px;letter-spacing:.2px;display:block;line-height:1.2;white-space:nowrap}
.logo small{font-size:12px;color:var(--sub);letter-spacing:2px;display:block;line-height:1.2;white-space:nowrap}

.nav-right{margin-left:auto;display:flex;align-items:center;gap:22px;font-size:14.5px;color:#374151}
.nav-right a:hover{color:var(--teal-d)}
.lang{display:inline-flex;border:1px solid #e5e7eb;border-radius:8px;overflow:hidden;font-size:13px;cursor:pointer;flex-shrink:0}
.lang span{padding:6px 12px;color:var(--sub);white-space:nowrap;min-width:32px;text-align:center;line-height:1.2}
.lang span.on{background:#f3f4f6;color:var(--ink);font-weight:600}
.btn-reg{background:linear-gradient(135deg,#2dd4bf,#0d9488);color:#fff;font-weight:600;
  padding:9px 22px;border-radius:10px;font-size:14.5px;box-shadow:0 4px 12px rgba(13,148,136,.3);transition:.15s;
  white-space:nowrap}
.btn-reg:hover{filter:brightness(1.07)}

/* hero */
.main{max-width:1240px;margin:0 auto;padding:64px 24px 90px;display:grid;
  grid-template-columns:1.05fr .95fr;gap:64px;align-items:start;justify-content:center}
.slogan{width:100%;max-width:520px}
.slogan h1{font-size:52px;font-weight:800;letter-spacing:1px;line-height:1.25;
  background:linear-gradient(100deg,#0d9488 15%,#2563eb 55%,#8b5cf6 90%);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.slogan h2{color:#0d9488;font-size:28px;font-weight:700;margin-top:18px}
.slogan .feat{color:#2dd4bf;font-size:20px;font-weight:600;margin-top:14px;letter-spacing:3px}
.slogan .tip{color:var(--sub);font-size:14px;margin-top:22px}

/* notice */
.notice{margin-top:20px;background:var(--amber-bg);border:1px solid var(--amber-bd);
  border-radius:12px;padding:16px 18px}
.notice b{color:var(--amber-tx);font-size:14.5px;display:block;margin-bottom:6px}
.notice p{color:#b45309;font-size:13px;line-height:1.75}

/* contact card */
.contact{margin-top:28px;background:var(--card);border-radius:14px;box-shadow:var(--shadow);padding:28px 30px;text-align:center}
.contact h3{font-size:17px;font-weight:700;margin-bottom:20px;text-align:center;color:var(--ink)}
.contact-list{display:inline-block;text-align:left;margin:0 auto}
.contact .row{display:flex;align-items:center;gap:16px;padding:12px 0;font-size:16.5px;color:#374151}
.contact .row .ci{width:34px;height:34px;display:grid;place-items:center;flex-shrink:0}

/* rent card */
.rent{background:var(--card);border-radius:20px;box-shadow:0 24px 60px -20px rgba(30,58,138,.18);
  padding:28px 28px 24px;width:100%;max-width:520px}
.rent-head{display:flex;justify-content:space-between;align-items:flex-start}
.rent-head h2{font-size:21px;font-weight:800}
.rent-head small{display:block;color:var(--sub);font-size:13px;margin-top:6px;font-weight:400}
.dur-badge{background:#ccfbf1;color:#0f766e;font-size:13px;font-weight:600;
  padding:6px 14px;border-radius:999px;white-space:nowrap}
.rent hr{border:none;border-top:1px solid var(--line);margin:20px -28px}
.lb{font-size:14px;font-weight:700;margin-bottom:12px}
.lb span{font-weight:400;color:var(--sub);font-size:12.5px;margin-left:8px}
.amts{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:22px}
.amt{background:#f3f4f6;border-radius:12px;padding:16px 8px;text-align:center;transition:.15s}
.amt b{font-size:17px;display:block}
.amt small{color:var(--sub);font-size:12px}
.amt.sel{background:linear-gradient(135deg,#2dd4bf,#0d9488);color:#fff;
  box-shadow:0 6px 16px rgba(13,148,136,.35)}
.amt.sel small{color:#d1fae5}
.amt.off{opacity:.55;cursor:not-allowed}
.amt:not(.off):not(.sel):hover{background:#e5e7eb}
.addr{width:100%;border:1px solid #e5e7eb;border-radius:10px;padding:13px 14px;font-size:14px;
  outline:none;transition:.15s;background:#fbfcfe;color:var(--ink)}
.addr:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(20,184,166,.15)}
.addr::placeholder{color:#9ca3af}
.addr-hint{font-size:12.5px;color:var(--sub);margin-top:10px}
.addr-hint.warn{color:#b45309}
.quote{margin-top:20px;background:#f8fafc;border-radius:12px;padding:18px 20px;
  display:flex;justify-content:space-between;align-items:center}
.quote small{color:var(--sub);font-size:13px;display:block;line-height:1.7}
.quote .price{text-align:right}
.quote .price b{font-size:30px;color:var(--teal-d);font-weight:800}
.quote .price small{font-size:12px}
.mid-tip{text-align:center;color:var(--sub);font-size:13px;margin:20px 0 14px}
.btn-tg{width:100%;padding:15px;border-radius:12px;color:#fff;font-size:15.5px;font-weight:700;
  background:linear-gradient(135deg,#38bdf8,#0284c7);box-shadow:0 8px 20px rgba(2,132,199,.35);transition:.15s}
.btn-tg:hover{filter:brightness(1.06)}
.btn-login{width:100%;margin-top:12px;padding:15px;border-radius:12px;color:#fff;font-size:15.5px;font-weight:700;
  background:linear-gradient(135deg,#2dd4bf,#0d9488);box-shadow:0 8px 20px rgba(13,148,136,.3);transition:.15s}
.btn-login:hover{filter:brightness(1.06)}
.reg-tip{margin-top:16px;background:#f0fdfa;color:#0f766e;font-size:13.5px;text-align:center;
  padding:12px;border-radius:10px;cursor:pointer}

/* footer */
footer{text-align:center;color:#9ca3af;font-size:13px;padding:26px 0 40px}

/* mobile */
@media(max-width:960px){
  .main{grid-template-columns:1fr;gap:40px;padding-top:40px;justify-items:center}
  .slogan{max-width:100%;text-align:center}
  .slogan h1{font-size:38px}
  .nav-right a.doc{display:none}
  .rent{max-width:100%}

  .logo b{font-size:18px}
  .logo small{font-size:11px;letter-spacing:1px}

  .nav-right{gap:10px !important;font-size:13px}
  #navLogin{white-space:nowrap}
  .btn-reg{white-space:nowrap;padding:7px 14px !important;font-size:13px !important}
  .nav{flex-wrap:wrap;row-gap:8px}
}