:root{
  --navy:#0B2A5B; --navy-deep:#071C3F; --navy2:#16407F; --blue:#1D4E9E;
  --blue-soft:#EAF1FB; --orange:#F97316; --orange-d:#EA580C;
  --bg:#F5F7FA; --paper:#FFFFFF; --ink:#17263F; --body:#3C4E6B; --muted:#5B6B84;
  --line:#DFE7F2; --radius:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;font-size:16px}
a{color:var(--navy2);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(6px)}
.nav{display:flex;align-items:center;gap:18px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--navy)}
.brand:hover{text-decoration:none}
.brand small{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.08em}
.nav-links{margin-left:auto;display:flex;gap:22px;align-items:center}
.nav-links a{color:var(--ink);font-size:15px}
.nav-links a.on{color:var(--navy2);font-weight:700}
.lang-switch{border:1px solid var(--navy2);color:var(--navy2)!important;padding:4px 12px;border-radius:999px;font-size:13px!important}
.nav-toggle{display:none;margin-left:auto;background:none;border:0;font-size:24px;color:var(--navy);cursor:pointer}
@media(max-width:760px){
  .nav-toggle{display:block}
  .nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:var(--paper);flex-direction:column;align-items:flex-start;padding:14px 20px 18px;gap:12px;border-bottom:1px solid var(--line)}
  .nav-links.open{display:flex}
}
/* ---------- Hero (dark navy) ---------- */
.hero{padding:76px 0 64px;color:#EAF1FB;background:
  radial-gradient(640px 300px at 85% -60px,rgba(249,115,22,.28),transparent 60%),
  radial-gradient(760px 380px at -10% 120%,rgba(29,78,158,.55),transparent 60%),
  linear-gradient(155deg,#123A78 0%,var(--navy) 46%,var(--navy-deep) 100%)}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.22em;color:#FFB37A;margin:0 0 18px}
.eyebrow::before{content:"";display:inline-block;width:26px;height:2px;background:var(--orange);vertical-align:middle;margin-right:10px}
.hero h1{font-size:46px;line-height:1.28;margin:0 0 16px;color:#fff;max-width:820px}
.hero p.lead{font-size:18px;color:#C9D8F2;max-width:740px;margin:0 0 30px}
@media(max-width:760px){.hero h1{font-size:30px}.hero{padding:48px 0 40px}}
.btn{display:inline-block;background:var(--orange);color:#fff!important;padding:12px 26px;border-radius:999px;font-weight:600;font-size:15px}
.btn:hover{background:var(--orange-d);text-decoration:none}
.btn.ghost{background:transparent;color:var(--navy2)!important;border:1px solid var(--navy2);margin-left:10px}
.btn.ghost:hover{border-color:var(--navy);color:var(--navy)!important}
.hero .btn.ghost{color:#fff!important;border-color:rgba(255,255,255,.55)}
.hero .btn.ghost:hover{border-color:#fff}
.hero-note{margin-top:26px;color:#9FB8DE;font-size:14px}
.hero-note b{color:#fff}
.price-strip{margin-top:30px;background:var(--paper);border:1px solid var(--line);border-left:4px solid var(--orange);border-radius:10px;padding:14px 18px;font-size:15px}
.price-strip b{color:var(--navy)}
/* ---------- Sections & cards ---------- */
section{padding:52px 0}
section.band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
section h2{font-size:27px;color:var(--navy);margin:0 0 8px}
section .sub{color:var(--muted);margin:0 0 28px;max-width:760px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid.two{grid-template-columns:repeat(2,1fr)}
@media(max-width:860px){.grid,.grid.two{grid-template-columns:1fr}}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 1px 3px rgba(11,42,91,.05)}
.card h3{margin:0 0 8px;font-size:19px;color:var(--navy)}
.card p{margin:0 0 12px;color:var(--body);font-size:15px}
.card .price{font-weight:700;color:var(--orange-d)}
.card a.more{font-size:14px;font-weight:600}
.card .ic{display:inline-flex;width:52px;height:52px;align-items:center;justify-content:center;background:var(--blue-soft);border-radius:14px;font-size:26px;margin-bottom:14px}
.points{list-style:none;margin:14px 0 0;padding:0}
.points li{position:relative;padding-left:26px;margin-bottom:7px;font-size:14.5px;color:var(--body)}
.points li::before{content:"✓";position:absolute;left:0;top:0;color:var(--orange-d);font-weight:800}
.case-card .tag{display:inline-block;background:var(--blue-soft);color:var(--navy2);font-size:12px;font-weight:600;padding:2px 10px;border-radius:999px;margin-bottom:10px}
.case-card h3 a{color:var(--navy)}
/* ---------- Service showcase (alternating) ---------- */
.showcase{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;padding:38px 0;border-bottom:1px solid var(--line)}
.showcase:last-child{border-bottom:0}
.showcase.rev .visual{order:2}
@media(max-width:860px){.showcase{grid-template-columns:1fr}.showcase.rev .visual{order:0}}
.showcase h3{font-size:24px;color:var(--navy);margin:0 0 10px}
.showcase p{color:var(--body);margin:0;font-size:15.5px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 18px}
.chip{font-size:13px;font-weight:600;background:var(--blue-soft);color:var(--navy);border:1px solid #CFE0F5;padding:4px 12px;border-radius:999px}
.chip.hot{background:#FFF1E6;border-color:#FBD9B8;color:var(--orange-d)}
a.more{font-size:14.5px;font-weight:700;color:var(--navy2)}
.visual{border-radius:18px;min-height:252px;display:flex;align-items:center;justify-content:center;padding:30px;position:relative;overflow:hidden;background:linear-gradient(140deg,#1D4E9E 0%,var(--navy) 58%,var(--navy-deep) 100%)}
.visual .vnum{position:absolute;right:14px;top:2px;font-size:92px;font-weight:800;color:rgba(255,255,255,.08);line-height:1}
.mock-browser{width:88%;background:rgba(255,255,255,.07);border:1.5px solid rgba(255,255,255,.45);border-radius:12px;padding:16px}
.mock-browser .bar{display:flex;gap:6px;margin-bottom:14px}
.mock-browser .bar i{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.5)}
.mock-browser .bar i:first-child{background:var(--orange)}
.mock-browser .ln{height:11px;border-radius:6px;background:rgba(255,255,255,.38);margin-bottom:10px}
.mock-browser .ln.t{height:17px;width:62%;background:rgba(255,255,255,.75)}
.mock-browser .ln.hot{width:38%;background:var(--orange)}
.mock-browser .row{display:flex;gap:10px;margin-top:4px}
.mock-browser .row i{flex:1;height:44px;border-radius:8px;background:rgba(255,255,255,.16)}
.mock-phone{width:148px;height:258px;border:2px solid rgba(255,255,255,.55);border-radius:26px;padding:16px 12px;display:flex;flex-direction:column;gap:9px;background:rgba(255,255,255,.05)}
.mock-phone .ph-t{height:13px;width:55%;border-radius:6px;background:rgba(255,255,255,.75)}
.mock-phone .ph-hero{height:56px;border-radius:10px;background:var(--orange)}
.mock-phone .ph-row{display:flex;gap:8px}
.mock-phone .ph-row i{flex:1;height:40px;border-radius:8px;background:rgba(255,255,255,.2)}
.mock-phone .ph-ln{height:9px;border-radius:5px;background:rgba(255,255,255,.35)}
.mock-phone .ph-btn{margin-top:auto;height:30px;border-radius:999px;background:#fff}
.chatbox{width:86%;display:flex;flex-direction:column;gap:10px}
.bub{max-width:82%;padding:9px 13px;border-radius:14px;font-size:12.5px;line-height:1.5;color:#EAF1FB;background:rgba(255,255,255,.15)}
.bub.me{align-self:flex-end;background:var(--orange);color:#fff}
.bub.ai{align-self:flex-start;border-bottom-left-radius:4px}
.bub.me{border-bottom-right-radius:4px}
.bars{display:flex;align-items:flex-end;gap:14px;height:172px;padding:0 8px;border-bottom:2px solid rgba(255,255,255,.35)}
.bars i{width:40px;border-radius:8px 8px 0 0;background:linear-gradient(180deg,#7FB2F0,#1D4E9E)}
.bars i.hot{background:linear-gradient(180deg,#FFB37A,var(--orange))}
.globe{width:196px;height:196px;border:2px solid rgba(255,255,255,.55);border-radius:50%;position:relative;flex:none}
.globe .gv{position:absolute;top:0;bottom:0;left:50%;width:44%;transform:translateX(-50%);border:1.5px solid rgba(255,255,255,.32);border-radius:50%}
.globe .gv.g2{width:78%}
.globe .gh{position:absolute;left:5%;right:5%;top:31%;border-top:1.5px solid rgba(255,255,255,.32)}
.globe .gh.h2{top:63%}
.globe .gdot{position:absolute;right:20%;top:20%;width:14px;height:14px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 5px rgba(249,115,22,.28)}
.globe .gdot.d2{right:auto;left:16%;top:auto;bottom:18%;width:10px;height:10px;background:#7FB2F0;box-shadow:0 0 0 4px rgba(127,178,240,.25)}
.dash .d-row{display:flex;gap:10px;margin-bottom:14px}
.dash .d-stat{flex:1;border:1px solid rgba(255,255,255,.28);border-radius:10px;padding:10px}
.dash .d-stat .dot{display:block;width:9px;height:9px;border-radius:50%;background:#4ADE80;margin-bottom:9px}
.dash .d-stat .dot.hot{background:var(--orange)}
.dash .d-stat .ln{margin-bottom:0}
/* ---------- Feature trio ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:860px){.feat-grid{grid-template-columns:1fr}}
.feat{background:var(--paper);border:1px solid var(--line);border-top:3px solid var(--orange);border-radius:12px;padding:22px}
.feat h4{margin:0 0 8px;font-size:16.5px;color:var(--navy)}
.feat p{margin:0;font-size:14.5px;color:var(--body)}
/* ---------- Inner pages ---------- */
.page-head{padding:46px 0 6px}
.page-head h1{font-size:30px;color:var(--navy);margin:0 0 10px}
.page-head p{color:var(--muted);max-width:760px;margin:0}
.svc-block{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:28px;margin-bottom:22px;scroll-margin-top:84px}
.svc-block h2{font-size:22px;margin:0 0 6px}
.svc-block .price-line{color:var(--orange-d);font-weight:700;margin:0 0 14px}
.svc-block h4{margin:18px 0 6px;color:var(--navy);font-size:15px}
.svc-block ul{margin:0;padding-left:20px;color:var(--body);font-size:15px}
.svc-block li{margin-bottom:4px}
table.spec{width:100%;border-collapse:collapse;font-size:15px;margin-top:10px}
table.spec th,table.spec td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}
table.spec th{background:var(--blue-soft);color:var(--navy);width:110px}
form.consult{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px;max-width:680px}
form.consult label{display:block;font-size:14px;font-weight:600;margin:16px 0 6px}
form.consult label:first-child{margin-top:0}
form.consult input,form.consult select,form.consult textarea{width:100%;padding:11px 12px;border:1px solid #C6D2E4;border-radius:9px;font-size:15px;font-family:inherit;background:#fff}
form.consult textarea{min-height:110px;resize:vertical}
form.consult button{margin-top:20px;background:var(--orange);color:#fff;border:0;padding:12px 30px;border-radius:999px;font-size:15px;font-weight:600;cursor:pointer}
form.consult button:hover{background:var(--orange-d)}
form .hp-field{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-status{margin-top:16px;font-size:14px;display:none;padding:12px 14px;border-radius:9px}
.form-status.ok{display:block;background:var(--blue-soft);color:var(--navy)}
.form-status.warn{display:block;background:#fdf3e0;color:#7a5410;border:1px solid #ecd9ae}
.notice{background:#fdf3e0;border:1px solid #ecd9ae;border-radius:10px;padding:14px 18px;font-size:14px;color:#7a5410;margin-top:22px;max-width:680px}
footer.site{border-top:1px solid var(--line);background:var(--paper);padding:34px 0 40px;margin-top:20px}
footer .cols{display:flex;flex-wrap:wrap;gap:26px;justify-content:space-between}
footer nav{display:flex;gap:18px;flex-wrap:wrap}
footer nav a{color:var(--ink);font-size:14px}
footer .legal{color:var(--muted);font-size:13px;margin-top:20px;line-height:1.8}
.prose p{color:var(--body);max-width:800px}
.prose h2{font-size:21px}
.center{text-align:center}
.big404{font-size:74px;color:var(--navy);margin:0;font-weight:800}