:root{
  --sy-bg:#F0FDFA;
  --sy-ink:#0F2B3C;
  --sy-pri:#0891B2;
  --sy-sec:#06B6D4;
  --sy-cta:#0E7490;
  --sy-lite:#ECFEFF;
  --sy-grad:linear-gradient(135deg,#0891B2 0%,#2DD4BF 100%);
  --sy-grad-r:linear-gradient(135deg,#2DD4BF 0%,#0891B2 100%);
  --nav-h:56px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--nav-h)}
body{margin:0;font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;background:var(--sy-bg);color:var(--sy-ink);line-height:1.7}
img{display:block;max-width:100%}
img.sy-media{width:100%;aspect-ratio:4/3;object-fit:cover;object-position:center;border-radius:10px}
.container{max-width:1100px;margin:0 auto;padding:0 16px}
a{color:var(--sy-pri);text-decoration:none}

.navbar{position:sticky;top:0;z-index:1000;background:rgba(15,43,60,.92);backdrop-filter:blur(12px);height:var(--nav-h);display:flex;align-items:center}
.nav-inner{display:flex;align-items:center;width:100%;max-width:1100px;margin:0 auto;padding:0 16px}
.nav-logo{display:flex;align-items:center;gap:8px;color:#fff;font-weight:700;font-size:1.05rem}
.nav-ic{width:30px;height:30px;border-radius:50%;background:var(--sy-grad);display:flex;align-items:center;justify-content:center;color:#fff;font-size:.85rem}
.nav-txt{white-space:nowrap}
.nav-links{display:none;position:absolute;top:var(--nav-h);left:0;width:100%;background:rgba(15,43,60,.97);flex-direction:column;padding:10px 0}
.nav-links[aria-hidden="false"]{display:flex}
.nav-links a{color:#cff;padding:10px 20px;font-size:.92rem}
.nav-links a:hover{background:rgba(255,255,255,.06)}
.btn-nav{display:none;margin-left:auto;background:var(--sy-grad);color:#fff;border:none;padding:7px 16px;border-radius:6px;font-size:.85rem;font-weight:600;cursor:pointer}
.nav-toggle{display:flex;flex-direction:column;gap:5px;background:none;border:none;padding:6px;cursor:pointer;margin-left:auto}
.nav-toggle span{display:block;width:22px;height:2px;background:#fff;border-radius:2px;transition:transform .25s}
@media(min-width:768px){
  .nav-links{display:flex!important;position:static;flex-direction:row;width:auto;background:none;padding:0;margin-left:auto;gap:4px}
  .nav-links a{padding:6px 10px;border-radius:4px}
  .btn-nav{display:inline-block;margin-left:12px}
  .nav-toggle{display:none}
}

/* hero – A11 carousel-style overlay */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;overflow:hidden}
.hero-content{position:relative;flex:1;display:flex;flex-direction:column}
.hero-bg-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;max-width:none}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,43,60,.72) 0%,rgba(8,145,178,.45) 100%);z-index:1}
.compliance-bar{position:absolute;top:0;left:0;right:0;z-index:12;display:flex;align-items:center;gap:8px;padding:6px 16px;background:rgba(8,145,178,.3);backdrop-filter:blur(6px);color:rgba(236,254,255,.92);font-size:.76rem;line-height:1.5}
.compliance-bar span{flex:1}
.compliance-x{background:none;border:none;color:inherit;font-size:1.2rem;cursor:pointer;padding:0 4px;flex-shrink:0}
.hero-body{position:relative;z-index:2;flex:1;display:flex;flex-direction:column;justify-content:center;padding-top:clamp(56px,11vh,96px);padding-bottom:40px;color:#fff}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.ht{display:inline-flex;align-items:center;gap:5px;font-size:.78rem;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);padding:4px 12px;border-radius:20px;backdrop-filter:blur(4px)}
.hero-h1{font-size:clamp(1.55rem,4.2vw,2.8rem);font-weight:800;line-height:1.3;margin:0 0 16px}
.hero-h1 em{font-style:normal;background:var(--sy-grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-sub{max-width:640px;font-size:clamp(.92rem,1.6vw,1.1rem);opacity:.88;margin-bottom:28px;line-height:1.75}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.btn-hero{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:8px;font-weight:700;font-size:1rem;background:var(--sy-grad);color:#fff;transition:transform .2s}
.btn-hero:hover{transform:translateY(-2px)}
.btn-hero.ghost{background:transparent;border:2px solid rgba(255,255,255,.5);color:#fff}
.hero-data{display:flex;flex-wrap:wrap;gap:28px;padding-top:18px;border-top:1px solid rgba(255,255,255,.18)}
.hero-data div{text-align:center}
.hero-data span{display:block;font-size:1.65rem;font-weight:800}
.hero-data small{font-size:.78rem;opacity:.72}

/* section common */
.section{padding:clamp(48px,8vh,80px) 0}
.sec-t{text-align:center;margin-bottom:36px}
.sec-t.left{text-align:left}
.sec-t.light{color:#fff}
.sec-t.light .sec-d{color:rgba(255,255,255,.78)}
.sec-t h2{font-size:clamp(1.4rem,3vw,1.85rem);font-weight:800;margin:0 0 8px}
.sec-t h2 em{font-style:normal;color:var(--sy-pri)}
.sec-d{font-size:.92rem;color:#546e7a;margin:0;max-width:640px;margin-inline:auto}
.sec-t.left .sec-d{margin-inline:0}

/* M4 reviews */
.rev-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}
.rev-card{background:#fff;border-radius:12px;padding:22px;border:1px solid rgba(8,145,178,.12);box-shadow:0 2px 10px rgba(0,0,0,.04)}
.rv-top{font-size:.85rem;color:var(--sy-pri);font-weight:600;margin-bottom:10px}
.rv-top em{display:block;font-style:normal;font-size:.8rem;color:var(--sy-cta);margin-top:3px}
.rev-card p{font-size:.9rem;line-height:1.75;color:#37474f;margin:0}

/* M9 about */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
@media(max-width:767px){.about-grid{grid-template-columns:1fr}.about-ph{order:-1}}
.ab-p{font-size:.93rem;line-height:1.8;color:#455a64;margin:0 0 14px}
.btn-main{display:inline-flex;align-items:center;gap:6px;background:var(--sy-grad);color:#fff;padding:12px 28px;border-radius:8px;font-weight:700;margin-top:8px;transition:transform .2s}
.btn-main:hover{transform:translateY(-2px);color:#fff}

/* M5 – C22 service checklist */
.svc-list{display:grid;gap:20px}
.sl-card{display:grid;grid-template-columns:200px 1fr;background:#fff;border-radius:14px;overflow:hidden;border:1px solid rgba(8,145,178,.1);box-shadow:0 2px 12px rgba(0,0,0,.04);transition:transform .25s}
.sl-card:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(0,0,0,.08)}
@media(max-width:600px){.sl-card{grid-template-columns:1fr}}
.sl-img img{width:100%;aspect-ratio:4/3;object-fit:cover;object-position:center;display:block}
.sl-body{padding:20px 22px;display:flex;flex-direction:column;gap:10px}
.sl-body h3{font-size:1.08rem;margin:0;color:var(--sy-ink)}
.sl-hot{display:inline-block;background:var(--sy-grad);color:#fff;font-size:.68rem;padding:2px 10px;border-radius:10px;vertical-align:middle;margin-right:6px;font-weight:700}
.sl-body ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px}
.sl-body li{font-size:.88rem;display:flex;align-items:flex-start;gap:6px;color:#455a64}
.sl-body li i{color:var(--sy-sec);margin-top:3px;flex-shrink:0}
.sl-go{display:inline-block;margin-top:auto;background:var(--sy-grad);color:#fff;padding:8px 20px;border-radius:6px;font-weight:600;font-size:.88rem;text-align:center;align-self:flex-start;transition:transform .2s}
.sl-go:hover{transform:translateY(-1px);color:#fff}
.svc-note{text-align:center;margin-top:20px;font-size:.82rem;color:#78909c}

/* M6 flow */
.sec-flow{background:var(--sy-ink)}
.sec-flow .sec-t h2{color:#fff}
.sec-flow .sec-d{color:rgba(207,255,255,.7)}
.flow-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.fc{text-align:center;padding:24px 18px;background:rgba(255,255,255,.06);border-radius:12px;border:1px solid rgba(255,255,255,.08)}
.fi{display:inline-flex;width:42px;height:42px;border-radius:50%;background:var(--sy-grad);color:#fff;font-weight:800;font-size:1.15rem;align-items:center;justify-content:center;margin-bottom:12px}
.fc h3{color:#ecfeff;font-size:1.05rem;margin:0 0 8px}
.fc p{color:rgba(207,255,255,.72);font-size:.87rem;margin:0;line-height:1.7}

/* M2 ticker */
.sec-tick{background:var(--sy-lite);padding:40px 0}
.ticker{overflow:hidden;position:relative;margin-top:10px}
.ticker-track{display:flex;gap:40px;animation:ticker 50s linear infinite;width:max-content}
@keyframes ticker{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}
.tk-x{white-space:nowrap;font-size:.88rem;color:var(--sy-cta);display:inline-flex;align-items:center;gap:6px}
.tk-x i{color:var(--sy-sec)}

/* M3 trust */
.sec-trust{position:relative;padding:clamp(48px,8vh,80px) 0;overflow:hidden}
.trust-bg{position:absolute;inset:0;background:var(--bg) center/cover no-repeat;z-index:0}
.trust-bg::after{content:'';position:absolute;inset:0;background:rgba(15,43,60,.82)}
.trust-inner{position:relative;z-index:1}
.trust-nums{display:flex;flex-wrap:wrap;gap:28px;justify-content:center;margin-top:12px}
.trust-nums div{text-align:center;min-width:160px}
.trust-nums span{display:block;font-size:2rem;font-weight:800;color:#2dd4bf}
.trust-nums small{font-size:.82rem;color:rgba(255,255,255,.7)}

/* M8 FAQ */
.faq-box{max-width:740px;margin:0 auto;display:flex;flex-direction:column;gap:10px}
.fq-item{background:#fff;border-radius:10px;overflow:hidden;border:1px solid rgba(8,145,178,.1)}
.fq-q{display:flex;justify-content:space-between;align-items:center;width:100%;padding:16px 18px;background:none;border:none;font-size:.95rem;font-weight:600;cursor:pointer;text-align:left;color:var(--sy-ink)}
.fq-q i{transition:transform .3s;flex-shrink:0;margin-left:12px;color:var(--sy-sec)}
.fq-q[aria-expanded="true"] i{transform:rotate(180deg)}
.fq-a{display:none;padding:0 18px 16px;font-size:.89rem;color:#546e7a;line-height:1.75}
.fq-q[aria-expanded="true"]+.fq-a{display:block}

/* M7 privacy */
.priv-2col{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
@media(max-width:767px){.priv-2col{grid-template-columns:1fr}}
.pv-ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:14px}
.pv-ul li{display:flex;align-items:flex-start;gap:10px;font-size:.91rem;color:#455a64}
.pv-ul li i{color:var(--sy-pri);margin-top:3px;flex-shrink:0}

/* M12 dashboard */
.sec-dash{background:var(--sy-lite)}
.dash-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:20px;text-align:center}
.dg{background:#fff;border-radius:12px;padding:24px 16px;border:1px solid rgba(8,145,178,.08)}
.dg span{display:block;font-size:1.9rem;font-weight:800;color:var(--sy-pri)}
.dg small{font-size:.8rem;color:#78909c;margin-top:4px;display:block}

/* M13 conditions */
.cond-2col{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}
@media(max-width:767px){.cond-2col{grid-template-columns:1fr}}
.cu-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:14px}
.cu-list li{display:flex;align-items:flex-start;gap:10px;font-size:.91rem;color:#455a64}
.cu-list li i{color:var(--sy-pri);margin-top:3px;flex-shrink:0}

/* M10 contact */
.co-card{max-width:540px;margin:0 auto;background:#fff;border-radius:14px;padding:28px 24px;border:1px solid rgba(8,145,178,.12);box-shadow:0 4px 18px rgba(0,0,0,.06)}
.co-who{font-weight:700;font-size:1.05rem;margin:0 0 8px;color:var(--sy-ink)}
.co-who i{color:var(--sy-pri);margin-right:4px}
.co-intro{font-size:.88rem;color:#546e7a;margin:0 0 18px;line-height:1.7}
.co-row{display:flex;align-items:center;gap:10px;padding:10px 0;border-top:1px solid rgba(8,145,178,.08)}
.co-row label{width:48px;font-size:.82rem;color:#78909c;flex-shrink:0;font-weight:600}
.co-row div{display:flex;align-items:center;gap:10px;flex:1;flex-wrap:wrap}
.co-row strong{font-size:1rem}
.co-btn{display:inline-block;background:var(--sy-grad);color:#fff;border:none;padding:6px 16px;border-radius:6px;font-size:.82rem;font-weight:600;cursor:pointer;transition:transform .15s}
.co-btn:hover{transform:scale(1.04)}
.co-btn.link{text-decoration:none}
.co-tel{font-size:1rem;font-weight:600;color:var(--sy-pri)}
.co-tip{margin:16px 0 0;font-size:.8rem;color:#90a4ae;text-align:center}

/* M11 footer */
.footer{background:var(--sy-ink);color:rgba(207,255,255,.6);padding:32px 0;font-size:.82rem;text-align:center;line-height:1.7}
.footer p{margin:0 0 6px}
.ft-links a{color:rgba(207,255,255,.7)}
.ft-links a:hover{color:#2dd4bf}
.footer-tech{font-size:.74rem;margin-top:8px;opacity:.5}

/* F3-A float bar */
.float-bar{display:none;position:fixed;bottom:0;left:0;right:0;z-index:10040;background:rgba(15,43,60,.95);backdrop-filter:blur(10px);padding:8px 16px env(safe-area-inset-bottom,0);gap:10px}
@media(max-width:767px){.float-bar{display:flex}}
.fb-a{flex:1;text-align:center;padding:10px;border-radius:8px;font-weight:700;font-size:.92rem;color:#fff;display:flex;align-items:center;justify-content:center;gap:6px}
.fb-call{background:var(--sy-cta)}
.fb-wx{background:#07C160}

/* F4 scroll-to-top */
.fab-top{position:fixed;right:16px;bottom:calc(62px + env(safe-area-inset-bottom,0px));z-index:10050;width:44px;height:44px;border-radius:50%;border:none;background:var(--sy-grad);color:#fff;font-size:1.1rem;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 3px 14px rgba(0,0,0,.18);opacity:0;pointer-events:none;transition:opacity .3s,transform .3s}
.fab-top.show{opacity:1;pointer-events:auto}
.fab-top:hover{transform:scale(1.08)}
@media(min-width:768px){.fab-top{bottom:max(22px,env(safe-area-inset-bottom,0px))}}