:root{
  --pri:#1557d6; --pri-d:#0e3f9e; --pri-l:#e8f0ff;
  --hot:#ff6a00; --hot-d:#e85d00; --hot-l:#fff2e8;
  --ink:#16202e; --ink2:#31445c; --muted:#69798c; --line:#e3eaf3;
  --bg:#fff; --soft:#f5f8fd; --radius:8px;
  --sh:0 6px 24px rgba(21,87,214,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-size:15.5px;line-height:1.75;
  font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  -webkit-font-smoothing:antialiased}
html[dir="rtl"] body{font-family:"Noto Naskh Arabic","Geeza Pro","Segoe UI",Tahoma,system-ui,sans-serif}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;letter-spacing:0}
p{margin:0}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.wrap-narrow{max-width:860px}
.center{text-align:center;margin-top:28px}
.dim,.muted{color:var(--muted)}
.mono{font-family:ui-monospace,Menlo,monospace;font-size:13.5px;color:var(--muted)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--pri);color:#fff;
  border:1px solid var(--pri);border-radius:6px;padding:11px 22px;font-size:15px;font-weight:600;cursor:pointer;transition:.15s}
.btn:hover{background:var(--pri-d);border-color:var(--pri-d)}
.btn-hot{background:linear-gradient(180deg,#ff7d1a,#ff6a00);border-color:#ff6a00}
.btn-hot:hover{background:linear-gradient(180deg,#ff6a00,#e85d00);border-color:#e85d00}
.btn-line{background:#fff;color:var(--pri);border:1px solid #b9cdf2}
.btn-line:hover{background:var(--pri-l);border-color:var(--pri);color:var(--pri-d)}
.btn-sm{padding:8px 16px;font-size:14px}
.btn-lg{padding:14px 30px;font-size:16px}
.btn-block{display:flex;width:100%}

/* 顶部条 */
.topbar{background:#0f2035;color:#a9bad0;font-size:12.5px;line-height:30px}
.tb-in{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
.tb-r{display:flex;gap:18px}
.tb-time{color:#7d90a8}

/* 头部 */
.hd{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:60;box-shadow:0 2px 10px rgba(16,32,53,.05)}
.hd-in{display:flex;align-items:center;gap:18px;height:76px}
.brand{display:flex;align-items:center;gap:10px;margin-inline-end:auto}
.brand-mark{width:42px;height:42px;border-radius:8px;background:linear-gradient(135deg,#1a63e8,#0e3f9e);color:#fff;
  display:grid;place-items:center;font-size:21px;font-weight:700}
.brand-txt b{display:block;font-size:18px;letter-spacing:.5px}
.brand-txt small{display:block;font-size:12px;color:var(--muted);letter-spacing:.5px}
.nav{display:flex;align-items:center;gap:4px}
.nav>a{padding:10px 14px;font-size:15.5px;color:var(--ink2);border-radius:6px;font-weight:500}
.nav>a:hover{color:var(--pri);background:var(--pri-l)}
.nav>a.on{color:var(--pri);font-weight:700}
.lang-sw{display:flex;gap:2px;margin-inline:6px;border:1px solid var(--line);border-radius:6px;padding:2px}
.lang-sw a{padding:3px 8px;font-size:12px;color:var(--muted);border-radius:4px;letter-spacing:.3px}
.lang-sw a.on{background:var(--pri);color:#fff}
.tb-lang{display:none;border-color:#2a405c}
.tb-lang a{color:#a9bad0;padding:2px 7px;font-size:11.5px}
.tb-lang a.on{background:#2f80ff;color:#fff}
.mnav-cb,.mnav-btn{display:none}

/* Hero */
.hero{background:linear-gradient(180deg,#eaf2ff 0%,#f6f9ff 55%,#fff 100%);padding:48px 0 34px;
  border-bottom:1px solid var(--line)}
.hero-in{display:grid;grid-template-columns:1.02fr .98fr;gap:44px;align-items:start}
.badge{display:inline-block;font-size:13px;color:var(--pri);background:#fff;border:1px solid #cfe0ff;
  border-radius:99px;padding:5px 14px;margin-bottom:16px;font-weight:600}
.hero h1{font-size:clamp(30px,3.9vw,46px);line-height:1.24;font-weight:800;color:#0d1b2e}
.hero h1 em{font-style:normal;color:var(--hot);position:relative}
.lead{font-size:16px;color:var(--ink2);margin-top:16px}
.ticks{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:9px}
.ticks li{position:relative;padding-inline-start:26px;font-size:15px;color:var(--ink2)}
.ticks li::before{content:"✓";position:absolute;inset-inline-start:0;top:0;width:18px;height:18px;border-radius:50%;
  background:var(--pri-l);color:var(--pri);font-size:12px;display:grid;place-items:center;font-weight:700}
.hero-cta{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}
.hero-mini{display:flex;gap:22px;margin-top:22px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.hero-mini span{position:relative;padding-inline-start:14px}
.hero-mini span::before{content:"";position:absolute;inset-inline-start:0;top:8px;width:6px;height:6px;border-radius:50%;background:var(--hot)}

/* 首屏表单 */
.hero-form{background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 14px 40px rgba(21,87,214,.12);overflow:hidden}
.hf-head{background:linear-gradient(135deg,#1a63e8,#0e3f9e);color:#fff;padding:16px 20px}
.hf-head b{display:block;font-size:17px}
.hf-head small{font-size:12.5px;opacity:.82}
.hero-form form{padding:18px 20px 20px;display:grid;gap:12px}
.hero-form label{display:grid;gap:6px;font-size:12.5px;color:var(--muted);font-weight:600}
.hero-form input,.hero-form select,.hero-form textarea{font:inherit;font-size:14.5px;color:var(--ink);
  border:1px solid var(--line);border-radius:6px;padding:10px 12px;width:100%;background:#fbfcfe;transition:.15s}
.hero-form input:focus,.hero-form select:focus,.hero-form textarea:focus{outline:none;border-color:var(--pri);
  background:#fff;box-shadow:0 0 0 3px rgba(21,87,214,.1)}
.hero-form textarea{resize:vertical;min-height:76px}
.hf-note{font-size:12px;color:var(--muted);text-align:center;margin-top:-2px}
.hp,.form .hp,.hero-form .hp{position:absolute;width:1px !important;height:1px !important;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;opacity:0;pointer-events:none}

/* 信任条 */
.trust{margin-top:-1px;background:#fff;border-bottom:1px solid var(--line)}
.trust-in{display:grid;grid-template-columns:repeat(4,1fr);gap:0;padding:26px 20px}
.tr-item{text-align:center;border-inline-end:1px solid var(--line);padding:0 10px}
.tr-item:last-child{border:0}
.tr-item b{display:block;font-size:28px;font-weight:800;color:var(--pri);letter-spacing:-.5px}
.tr-item span{font-size:13px;color:var(--muted)}

/* 区块 */
.sec{padding:64px 0}
.sec-soft{background:var(--soft)}
.sec-hd{text-align:center;margin-bottom:36px}
.sec-hd h2{font-size:clamp(24px,2.6vw,32px);font-weight:800;color:#0d1b2e;display:inline-block;position:relative;padding-bottom:12px}
.sec-hd h2::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:0;width:44px;height:3px;
  background:var(--hot);border-radius:2px}
.sec-hd p{color:var(--muted);margin-top:10px;font-size:15px}

.grid-services{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.srv{background:#fff;border:1px solid var(--line);border-radius:10px;padding:24px 22px;transition:.18s}
.srv:hover{border-color:#b9cdf2;box-shadow:var(--sh);transform:translateY(-2px)}
.srv-ico{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:8px;background:var(--pri-l);
  color:var(--pri);font-size:20px;margin-bottom:14px;font-weight:700}
.srv h3{font-size:17.5px;margin-bottom:8px;color:#0d1b2e}
.srv p{font-size:14.5px;color:var(--muted);line-height:1.8}

.grid-cases{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-cases--wide{grid-template-columns:repeat(2,1fr)}
.kase{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;transition:.18s}
.kase:hover{box-shadow:0 12px 32px rgba(16,32,53,.12);transform:translateY(-3px);border-color:#b9cdf2}
.kase-img{aspect-ratio:16/10;overflow:hidden;background:#eef3fa;border-bottom:1px solid var(--line)}
.kase-img img{width:100%;height:100%;object-fit:cover;object-position:top;transition:.35s}
.kase:hover .kase-img img{transform:scale(1.035)}
.kase-body{padding:18px 20px 20px}
.kase-tag{display:inline-block;font-size:12px;color:var(--hot);background:var(--hot-l);border-radius:4px;padding:3px 8px;margin-bottom:9px;font-weight:600}
.kase h3{font-size:17px;margin-bottom:7px;color:#0d1b2e}
.kase p{font-size:14px;color:var(--muted);line-height:1.75}
.kase-more{display:inline-block;margin-top:12px;font-size:13.5px;color:var(--pri);font-weight:600}

/* 流程 */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.steps::before{content:"";position:absolute;top:19px;inset-inline:12%;border-top:1px dashed #c3d5f1;z-index:0}
.steps li{position:relative;z-index:1;text-align:center;padding:0 6px}
.step-n{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:#fff;border:2px solid var(--pri);
  color:var(--pri);font-weight:800;font-size:16px;margin:0 auto 14px}
.steps h3{font-size:16.5px;margin-bottom:7px;color:#0d1b2e}
.steps p{font-size:13.5px;color:var(--muted);line-height:1.75}

/* 套餐 */
.pkgs{display:grid;grid-template-columns:repeat(auto-fit,minmax(248px,1fr));gap:20px;align-items:stretch}
.pkg{position:relative;background:#fff;border:1px solid var(--line);border-radius:10px;padding:26px 24px;display:flex;flex-direction:column;transition:.18s}
.pkg:hover{box-shadow:var(--sh)}
.pkg-hot{border:2px solid var(--hot);box-shadow:0 12px 34px rgba(255,106,0,.14)}
.pkg-tag{position:absolute;top:-13px;inset-inline-start:50%;transform:translateX(-50%);background:linear-gradient(180deg,#ff7d1a,#ff6a00);
  color:#fff;font-size:12.5px;font-weight:700;padding:4px 14px;border-radius:99px;white-space:nowrap}
.pkg h3{font-size:18px;color:#0d1b2e}
.pkg-price{font-size:30px;font-weight:800;color:var(--hot);margin:6px 0 10px;letter-spacing:-.5px}
.pkg-d{font-size:13.5px;color:var(--muted);min-height:44px}
.pkg-f{list-style:none;padding:16px 0 0;margin:16px 0 22px;border-top:1px dashed var(--line);display:grid;gap:9px;flex:1}
.pkg-f li{position:relative;padding-inline-start:22px;font-size:14px;color:var(--ink2)}
.pkg-f li::before{content:"✓";position:absolute;inset-inline-start:0;color:#16a34a;font-weight:700}

/* FAQ */
.faq{display:grid;gap:10px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:8px;padding:0 18px}
.faq details[open]{border-color:#b9cdf2;box-shadow:var(--sh)}
.faq summary{cursor:pointer;padding:15px 0;font-size:15.5px;font-weight:600;color:#0d1b2e;list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--pri);font-size:20px;font-weight:400}
.faq details[open] summary::after{content:"−"}
.faq-a{padding:0 0 16px;font-size:14.5px;color:var(--muted);line-height:1.85}

/* CTA 条 */
.cta-band{background:linear-gradient(120deg,#12459f,#1557d6 55%,#1a63e8);color:#fff;padding:38px 0}
.cta-band-in{display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap}
.cta-band h2{font-size:24px;font-weight:800}
.cta-band p{font-size:13.5px;opacity:.82;margin-top:6px}
.cta-band-act{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.cta-wx{font-size:14.5px;opacity:.92}

/* 内页 */
.page-hd{background:linear-gradient(180deg,#eaf2ff,#fff);border-bottom:1px solid var(--line);padding:44px 0 36px}
.page-hd h1{font-size:clamp(26px,3vw,38px);font-weight:800;color:#0d1b2e;margin-top:6px}
.page-hd .lead{max-width:70ch}
.err-page{text-align:center;padding:90px 0}
.err-page h1{font-size:72px;color:var(--pri);letter-spacing:-2px}
.err-page .btn{margin-top:20px}

.case-page{padding:26px 0 0}
.back{font-size:13.5px;color:var(--muted)}
.case-hd{max-width:820px;margin:18px 0 32px}
.case-hd h1{font-size:clamp(25px,3vw,36px);font-weight:800;color:#0d1b2e;margin:10px 0 12px}
.case-hd .btn{margin-top:16px}
.shots{display:grid;gap:22px;margin-bottom:44px}
.shot{margin:0;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.shot img{width:100%}
.shot figcaption{padding:11px 16px;font-size:12.5px;color:var(--muted);border-top:1px solid var(--line);background:#fbfcfe}
.shot--phone{max-width:340px}
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px 40px;padding-bottom:10px}
.case-grid h2{font-size:16.5px;color:var(--pri);margin-bottom:9px}
.case-grid p{font-size:15px;color:var(--ink2);line-height:1.9}

.about-in{display:grid;grid-template-columns:1.4fr .6fr;gap:44px}
.about-txt p+p{margin-top:18px}
.about-fact{background:var(--pri-l);border-inline-start:3px solid var(--pri);border-radius:0 6px 6px 0;padding:14px 18px;font-size:14.5px;color:var(--ink2)}
.stats{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:28px 0 0;padding:0}
.stats li b{display:block;font-size:22px;font-weight:800;color:var(--pri)}
.stats li span{font-size:12.5px;color:var(--muted)}
.card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:22px;box-shadow:var(--sh)}
.card h4{font-size:13px;letter-spacing:.5px;color:var(--muted);margin-bottom:12px}
.card p{font-size:14.5px;margin-bottom:8px}
.card p.dim{font-size:13px}

/* 询盘表单（内页） */
.sec-cta{background:var(--soft);border-top:1px solid var(--line)}
.cta-in{display:grid;grid-template-columns:.8fr 1.2fr;gap:44px;align-items:start}
.cta-in h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;color:#0d1b2e}
.cta-in .cta-txt>p{color:var(--muted);margin-top:12px;font-size:14.5px}
.cta-list{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:9px}
.cta-list li{display:flex;gap:10px;font-size:14.5px}
.cta-list span{color:var(--muted);font-size:12.5px;min-width:74px}
.cta-note{color:var(--muted);font-size:13px !important}
.form{background:#fff;border:1px solid var(--line);border-radius:10px;padding:26px;display:grid;gap:14px;box-shadow:var(--sh)}
.form label{display:grid;gap:6px;font-size:12.5px;color:var(--muted);font-weight:600}
.form input,.form select,.form textarea{font:inherit;font-size:15px;color:var(--ink);background:#fbfcfe;
  border:1px solid var(--line);border-radius:6px;padding:11px 12px;width:100%}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--pri);background:#fff;
  box-shadow:0 0 0 3px rgba(21,87,214,.1)}
.form textarea{resize:vertical;min-height:100px}
.form .btn{justify-self:start}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.flash{max-width:1200px;margin:20px auto 0;padding:12px 18px;border-radius:6px;font-size:14.5px}
.flash.ok{background:#e9f8ef;color:#12703e;border:1px solid #c5ebd5}
.flash.bad{background:#fdeceb;color:#a32b21;border:1px solid #f6cdc9}

/* 页脚 */
.ft{background:#0f2035;color:#9db0c7;padding:46px 0 18px;font-size:14px}
.ft-in{display:grid;grid-template-columns:1.5fr .7fr 1.1fr;gap:36px;padding-bottom:28px;border-bottom:1px solid #1d3450}
.ft b{color:#fff;font-size:16px;display:block;margin-bottom:10px}
.ft h4{color:#fff;font-size:13.5px;margin-bottom:10px}
.ft-col a,.ft-col span{display:block;font-size:14px;color:#9db0c7;padding:3px 0}
.ft-col a:hover{color:#fff}
.ft-about p{font-size:13.5px;line-height:1.85}
.ft-tags{color:#6f8299 !important;margin-top:8px}
.ft-btm{display:flex;gap:16px;align-items:center;padding-top:16px;font-size:12.5px;color:#6f8299;flex-wrap:wrap}
.ft-adm{margin-inline-start:auto;opacity:.5}
.ft-adm:hover{opacity:1}

/* 浮动咨询 */
.float{position:fixed;inset-inline-end:14px;bottom:70px;z-index:70;display:grid;gap:6px}
.fl-item{width:58px;padding:8px 0;background:#fff;border:1px solid var(--line);border-radius:8px;text-align:center;
  font-size:11px;color:var(--ink2);box-shadow:0 4px 14px rgba(16,32,53,.1)}
.fl-item:hover{border-color:var(--pri);color:var(--pri)}
.fl-ico{display:block;font-size:15px;font-weight:700;color:var(--pri);margin-bottom:2px}

/* 响应式 */
@media(max-width:1000px){
  .hero-in{grid-template-columns:1fr;gap:32px}
  .grid-services,.grid-cases,.pkgs{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);gap:26px}
  .steps::before{display:none}
  .cta-in,.about-in{grid-template-columns:1fr;gap:28px}
  .case-grid{grid-template-columns:1fr;gap:24px}
  .trust-in{grid-template-columns:repeat(2,1fr);gap:18px 0}
  .tr-item:nth-child(2){border-inline-end:0}
}
@media(max-width:760px){
  body{font-size:15px}
  .wrap{padding:0 16px}
  .tb-l,.tb-time,.tb-wx{display:none}
  .topbar .tb-in{justify-content:flex-end}
  .tb-lang{display:flex;margin:0;background:#16283d;padding:1px;border-radius:6px}
  .tb-lang a{padding:3px 11px;font-size:12px;letter-spacing:.3px}
  .nav .lang-sw{display:none}
  .topbar{font-size:11.5px;line-height:26px}
  .hd-in{height:62px}
  .brand-mark{width:36px;height:36px;font-size:18px}
  .brand-txt b{font-size:16px}
  .brand-txt small{display:none}
  .mnav-btn{display:flex;flex-direction:column;gap:4px;padding:8px;cursor:pointer;order:3}
  .mnav-btn span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px}
  .nav{position:absolute;top:62px;inset-inline:0;background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0;padding:6px 16px 16px;display:none;box-shadow:0 16px 30px rgba(16,32,53,.1)}
  .mnav-cb:checked ~ .nav{display:flex}
  .nav>a{padding:13px 6px;border-bottom:1px solid var(--line)}
  .lang-sw{margin:10px 0;justify-content:center}
  .nav .btn{margin-top:10px}
  .hero{padding:30px 0 24px}
  .hero h1{font-size:clamp(26px,7.2vw,32px)}
  .lead{font-size:15px}
  .hero-cta .btn{flex:1}
  .trust-in{padding:20px 16px}
  .tr-item b{font-size:23px}
  .sec{padding:44px 0}
  .grid-services,.grid-cases,.pkgs,.steps,.stats{grid-template-columns:1fr}
  .tr-item{border-inline-end:0}
  .frow{grid-template-columns:1fr}
  .form{padding:20px}
  .page-hd{padding:32px 0 26px}
  .shot--phone{max-width:100%}
  .float{display:none}
  .ft-in{grid-template-columns:1fr;gap:22px}
  .cta-band-in{flex-direction:column;align-items:flex-start}
}
@media(prefers-reduced-motion:reduce){*{transition:none !important;animation:none !important}}
html[dir="rtl"] .ticks li::before{font-size:11px}
html[dir="rtl"] .about-fact{border-radius:6px 0 0 6px}