:root{
  --navy:#0E4876; --navy-deep:#07263F; --navy-900:#051826;
  --ink:#0c2233; --amber:#F6A94B; --amber-2:#FFC777; --aqua:#2BB8CB; --sky:#5BA4CE;
  --ice:#EAF4FB; --paper:#F6FAFD; --line:#E3EDF4;
  --text:#132836; --muted:#5f7688;
  --maxw:1180px; --r:16px;
  --disp:'Bricolage Grotesque','Noto Sans SC',sans-serif;
  --body:'Noto Sans SC','Bricolage Grotesque',-apple-system,'PingFang SC',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--body);color:var(--text);line-height:1.7;background:#fff;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.container{max-width:var(--maxw);margin:0 auto;padding:0 26px}
.section{padding:110px 0;position:relative}
.eyebrow{display:inline-flex;align-items:center;gap:10px;color:var(--amber);font-weight:700;font-size:16px;letter-spacing:2.5px;text-transform:uppercase;font-family:var(--disp)}
.eyebrow::before{content:"";width:30px;height:2px;background:var(--amber);display:inline-block}
.center{text-align:center;margin-bottom:60px}
.center .eyebrow::before{display:none}
.center .eyebrow{letter-spacing:3px}
.stitle{font-family:var(--disp);font-size:42px;font-weight:800;color:var(--navy);margin-top:16px;line-height:1.2;letter-spacing:-.5px}
.stitle.white{color:#fff}
.slead{color:var(--muted);max-width:600px;margin:14px auto 0;font-size:16px}

/* 按钮 */
.btn{position:relative;display:inline-flex;align-items:center;gap:9px;justify-content:center;font-weight:700;font-size:15px;padding:15px 30px;border-radius:12px;cursor:pointer;border:none;transition:.25s cubic-bezier(.2,.7,.2,1);font-family:var(--disp)}
.btn svg{width:18px;height:18px}
.btn-amber{background:linear-gradient(135deg,var(--amber),#ef9631);color:#fff;box-shadow:0 10px 26px rgba(246,169,75,.35)}
.btn-amber:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(246,169,75,.5)}
.btn-ghost{background:rgba(255,255,255,.06);border:1.5px solid rgba(255,255,255,.35);color:#fff;backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.16);border-color:#fff;transform:translateY(-2px)}

/* 揭示动画 */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ===== 导航 ===== */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;transition:.35s}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:78px;gap:20px}
.nav::before{content:"";position:absolute;inset:0;background:rgba(5,24,38,0);backdrop-filter:blur(0);transition:.35s;z-index:-1}
.nav.scrolled::before{background:rgba(5,24,38,.9);backdrop-filter:blur(12px);box-shadow:0 1px 0 rgba(255,255,255,.06)}
.nav-logo img{height:34px}
.nav-links{display:flex;gap:34px}
.nav-links a{color:#cfe0ec;font-weight:600;font-size:15px;position:relative;padding:4px 0;transition:.2s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--amber);transition:.25s}
.nav-links a:hover{color:#fff}.nav-links a:hover::after{width:100%}
.nav-right{display:flex;align-items:center;gap:14px}
.lang-switch{display:flex;background:rgba(255,255,255,.1);border-radius:9px;padding:2px;gap:2px}
.lang-btn{background:none;border:none;color:#bcd3e2;padding:6px 11px;font-weight:700;cursor:pointer;font-size:13px;border-radius:7px;transition:.2s;font-family:var(--disp)}
.lang-btn.active{background:var(--amber);color:#fff}
.nav-cta{padding:10px 20px;font-size:14px}
.nav-toggle{display:none;background:none;border:none;color:#fff;font-size:26px;cursor:pointer}

/* ===== HERO (克制编辑风) ===== */
.hero{position:relative;min-height:76vh;display:flex;align-items:center;background:var(--navy-900);overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-glow{position:absolute;width:900px;height:620px;top:-140px;right:-120px;background:radial-gradient(ellipse at center,rgba(28,110,168,.5),transparent 65%);filter:blur(10px);opacity:.7}
.hero-lines{position:absolute;inset:0;background-image:linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:120px 100%;mask-image:linear-gradient(90deg,transparent,#000 40%,#000 70%,transparent)}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:64px;padding-top:78px;width:100%}
.hero-eyebrow{display:inline-block;color:#8fd0dd;font-family:var(--disp);font-weight:600;font-size:12.5px;letter-spacing:3px;text-transform:uppercase;padding-bottom:18px;border-bottom:1px solid rgba(255,255,255,.12);margin-bottom:26px}
.hero-title{font-family:var(--disp);color:#fff;font-size:52px;font-weight:800;line-height:1.14;letter-spacing:-.5px}
.hero-sub{color:#a7c6d9;font-size:18px;margin:22px 0 34px;max-width:480px;line-height:1.7}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
/* 右侧信任面板 */
.hero-panel{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);border-radius:20px;padding:34px 34px 26px;backdrop-filter:blur(6px)}
.hp-row{display:flex;align-items:center;gap:16px;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.07)}
.hp-row:first-child{padding-top:0}
.hp-tick{flex-shrink:0;width:36px;height:36px;border-radius:10px;background:rgba(246,169,75,.16);color:var(--amber);display:flex;align-items:center;justify-content:center}
.hp-tick svg{width:18px;height:18px}
.hp-row b{display:block;color:#fff;font-size:16.5px;font-family:var(--disp);font-weight:700}
.hp-row small{color:#8fb0c6;font-size:13.5px}
.hp-foot{padding-top:22px;text-align:center}
.hp-foot img{height:26px;margin:0 auto;opacity:.85}
/* ===== 信任带 ===== */
.trust{background:var(--navy-deep);border-top:1px solid rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.06)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;padding:0}
.trust-item{padding:34px 26px;display:flex;align-items:center;gap:16px;border-right:1px solid rgba(255,255,255,.07)}
.trust-item:last-child{border-right:none}
.trust-ic{flex-shrink:0;width:44px;height:44px;border-radius:11px;background:rgba(246,169,75,.14);display:flex;align-items:center;justify-content:center;color:var(--amber)}
.trust-ic svg{width:22px;height:22px}
.trust-item b{display:block;color:#fff;font-size:16px;font-family:var(--disp)}
.trust-item small{color:#8fb0c6;font-size:13px}

/* ===== 通用卡片图标 ===== */
.icn{width:56px;height:56px;border-radius:15px;display:flex;align-items:center;justify-content:center;margin-bottom:22px}
.icn svg{width:28px;height:28px}
.icn-amber{background:linear-gradient(135deg,rgba(246,169,75,.18),rgba(246,169,75,.06));color:var(--amber)}
.icn-navy{background:linear-gradient(135deg,rgba(14,72,118,.12),rgba(14,72,118,.04));color:var(--navy)}
.icn-aqua{background:linear-gradient(135deg,rgba(43,184,203,.16),rgba(43,184,203,.05));color:var(--aqua)}

/* 3卡 */
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.card{position:relative;background:#fff;border:1px solid var(--line);border-radius:20px;padding:40px 32px;transition:.3s cubic-bezier(.2,.7,.2,1);overflow:hidden}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--amber),var(--amber-2));transform:scaleX(0);transform-origin:left;transition:.35s}
.card:hover{transform:translateY(-8px);box-shadow:0 24px 50px rgba(14,72,118,.14);border-color:transparent}
.card:hover::before{transform:scaleX(1)}
.card h3{color:var(--navy);font-size:21px;font-weight:700;margin-bottom:11px;font-family:var(--disp)}
.card p{color:var(--muted);font-size:15px}
.card .num{position:absolute;top:26px;right:30px;font-family:var(--disp);font-size:40px;font-weight:800;color:var(--ice);line-height:1}
.guarantee{background:linear-gradient(180deg,var(--paper),#fff)}

/* 行业 */
.ind-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.ind-item{display:flex;align-items:center;gap:16px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px 26px;font-weight:700;color:var(--navy);font-size:18px;transition:.28s;font-family:var(--disp)}
.ind-item .ii{width:44px;height:44px;border-radius:11px;background:var(--ice);display:flex;align-items:center;justify-content:center;color:var(--navy);flex-shrink:0;transition:.28s}
.ind-item .ii svg{width:22px;height:22px}
.ind-item:hover{background:var(--navy);color:#fff;border-color:var(--navy);transform:translateY(-4px);box-shadow:0 18px 36px rgba(7,38,63,.22)}
.ind-item:hover .ii{background:rgba(255,255,255,.15);color:#fff}

/* 流程 */
.process{background:var(--navy-deep);overflow:hidden}
.process::after{content:"";position:absolute;width:500px;height:500px;background:radial-gradient(circle,rgba(43,184,203,.12),transparent 70%);top:-100px;right:-100px;filter:blur(40px)}
.process .stitle{color:#fff}
.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;position:relative;z-index:1}
.tstep{position:relative;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:30px 20px;text-align:center;transition:.3s;backdrop-filter:blur(4px)}
.tstep:hover{background:rgba(255,255,255,.1);transform:translateY(-6px);border-color:rgba(246,169,75,.4)}
.tnum{width:50px;height:50px;border-radius:14px;background:linear-gradient(135deg,var(--amber),#ef9631);color:#fff;font-weight:800;font-size:21px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-family:var(--disp);box-shadow:0 8px 20px rgba(246,169,75,.35)}
.tstep p{color:#d5e6f1;font-size:15px;font-weight:600}

/* 为什么选我们 */
/* 价值观(深色) */
.values{background:#fff;overflow:hidden}

.val-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;position:relative;z-index:1}
.vcard{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:28px 22px;transition:.28s}
.vcard:hover{background:#fff;transform:translateY(-6px);box-shadow:0 18px 40px rgba(14,72,118,.12);border-color:transparent}
.vnum{display:block;font-family:var(--disp);font-size:15px;font-weight:800;color:var(--amber);margin-bottom:14px}
.vcard b{display:block;color:var(--navy);font-family:var(--disp);font-size:18px;font-weight:700;margin-bottom:8px}
.vcard small{color:var(--muted);font-size:13.5px;line-height:1.6}
/* 团队(浅色,照片待填充) */
.team{background:var(--ice)}
.team-placeholder{max-width:720px;margin:0 auto;border:2px dashed var(--line);border-radius:20px;padding:56px;text-align:center;color:var(--muted);background:#fff}
.team-placeholder svg{width:56px;height:56px;margin:0 auto 16px;color:var(--sky);opacity:.6}
.team-placeholder span{display:block;font-size:15px}

/* 表单 */
.contact{background:linear-gradient(150deg,#0E4876,#051826);overflow:hidden;position:relative}
.contact::before{content:"";position:absolute;width:480px;height:480px;background:radial-gradient(circle,rgba(246,169,75,.14),transparent 70%);bottom:-160px;left:-120px;filter:blur(30px)}
.contact-sub{color:#a7c6d9;margin-top:12px}
.cform{max-width:680px;margin:44px auto 0;display:grid;grid-template-columns:1fr 1fr;gap:18px;position:relative;z-index:1}
.cform textarea,.cform .cform-submit{grid-column:1/-1}
.cform input,.cform textarea{width:100%;padding:16px 18px;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);border-radius:12px;color:#fff;font-family:var(--body);font-size:15px;transition:.2s}
.cform input::placeholder,.cform textarea::placeholder{color:#93b2c6}
.cform input:focus,.cform textarea:focus{outline:none;border-color:var(--amber);background:rgba(255,255,255,.1);box-shadow:0 0 0 4px rgba(246,169,75,.12)}
.cform-submit{justify-self:center;padding:16px 50px;margin-top:6px}

/* FAQ */
#faq{background:#fff}
.faq-list{max-width:840px;margin:0 auto}
.faq-list details{border:1px solid var(--line);border-radius:14px;padding:20px 26px;margin-bottom:14px;transition:.25s;background:#fff}
.faq-list details[open]{border-color:var(--amber);box-shadow:0 12px 30px rgba(14,72,118,.08)}
.faq-list summary{font-weight:700;color:var(--navy);cursor:pointer;font-size:17px;list-style:none;display:flex;justify-content:space-between;align-items:center;font-family:var(--disp)}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"+";font-size:24px;color:var(--amber);transition:.25s;font-weight:400}
.faq-list details[open] summary::after{transform:rotate(45deg)}
.faq-list details p{margin-top:14px;color:var(--muted);line-height:1.8}

/* 页脚 */
.footer{background:var(--navy-900);color:#cfe0ec;padding:64px 0 0;position:relative}
/* 页脚四列 */
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:40px;align-items:start}
.fcol{display:flex;flex-direction:column;gap:12px}
.fhead{color:var(--amber);font-family:var(--disp);font-weight:700;font-size:15px;margin-bottom:4px}
.fcol a{color:#a9c6d9;font-size:14px;transition:.2s}
.fcol a:hover{color:#fff}
.fcol .fc{color:#a9c6d9;font-size:13.5px;line-height:1.7;margin:0}
.foot-qr{margin-top:18px;display:flex;flex-direction:column;align-items:flex-start;gap:8px}
.foot-qr img{width:128px;border-radius:10px;background:#fff;padding:6px;margin-left:0}
.foot-qr span{color:#8fb0c6;font-size:12.5px}
.foot-logo{height:54px;width:auto;display:block;margin:0 0 20px 0}
.foot-slogan{color:#8fb0c6;max-width:280px}
.foot-meta p{margin:5px 0;font-size:14px;color:#9fb9cc}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);text-align:center;padding:22px;font-size:13px;color:#7f9db2}

/* 浮窗 + 弹层 */
.float-wecom{position:fixed;right:24px;bottom:24px;z-index:60;background:linear-gradient(135deg,var(--amber),#ef9631);color:#fff;border:none;border-radius:30px;padding:14px 22px;font-weight:700;font-size:15px;display:flex;align-items:center;gap:9px;cursor:pointer;box-shadow:0 10px 30px rgba(246,169,75,.5);font-family:var(--disp);transition:.25s}
.float-wecom svg{width:20px;height:20px}
.float-wecom:hover{transform:translateY(-3px) scale(1.03)}
.wecom-modal{position:fixed;inset:0;z-index:100;background:rgba(3,20,34,.78);display:none;align-items:center;justify-content:center;padding:20px;backdrop-filter:blur(4px)}
.wecom-modal.open{display:flex;animation:fade .25s}
@keyframes fade{from{opacity:0}to{opacity:1}}
.wecom-box{background:#fff;border-radius:22px;padding:42px;text-align:center;max-width:390px;position:relative;animation:pop .3s cubic-bezier(.2,.9,.3,1.2)}
@keyframes pop{from{transform:scale(.9);opacity:0}to{transform:scale(1);opacity:1}}
.wecom-box h3{color:var(--navy);font-size:23px;margin-bottom:10px;font-family:var(--disp)}
.wecom-box p{color:var(--muted);font-size:14px;margin-bottom:22px}
.wecom-box img{width:220px;margin:0 auto;border-radius:12px;border:1px solid var(--line)}
.wecom-close{position:absolute;top:14px;right:18px;background:none;border:none;font-size:22px;cursor:pointer;color:#aaa;transition:.2s}
.wecom-close:hover{color:var(--navy)}

/* ===== 响应式 ===== */
@media(max-width:980px){
  .hero-inner{grid-template-columns:1fr;text-align:center}
  .hero-eyebrow{margin-left:auto;margin-right:auto}
  .hero-sub{margin-left:auto;margin-right:auto}
  .hero-actions{justify-content:center}
  .hero-visual{display:none}
  .why-inner{grid-template-columns:1fr;gap:36px}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .trust-item:nth-child(2){border-right:none}
}
@media(max-width:900px){
  .nav-links{position:absolute;top:78px;left:0;right:0;flex-direction:column;background:rgba(5,24,38,.98);backdrop-filter:blur(12px);padding:12px 26px;gap:0;display:none}
  .nav-links.open{display:flex}
  .nav-links a{padding:15px 0;border-bottom:1px solid rgba(255,255,255,.08)}
  .nav-links a::after{display:none}
  .nav-cta{display:none}.nav-toggle{display:block}
}
@media(max-width:768px){
  .section{padding:70px 0}
  .stitle{font-size:30px}.hero-title{font-size:42px}
  .cards-3,.ind-grid{grid-template-columns:1fr}
  .timeline{grid-template-columns:repeat(2,1fr)}
  .val-grid{grid-template-columns:repeat(2,1fr)}
  .team-placeholder{padding:40px 24px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .fbrand{align-items:flex-start;padding-left:0;grid-column:1/-1}
  .trust-grid{grid-template-columns:1fr}
  .trust-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.07)}
  .cform{grid-template-columns:1fr}
  .float-wecom span:last-child{display:none}.float-wecom{padding:15px;border-radius:50%}
  .scroll-hint{display:none}
}

/* 知识指南卡片 */
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.guide-card{display:block;background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 24px;text-decoration:none;color:var(--navy);transition:.25s;box-shadow:0 2px 10px rgba(14,72,118,.04)}
.guide-card:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(14,72,118,.12);border-color:var(--aqua)}
.guide-card .gc-ico{font-size:30px;display:block;margin-bottom:12px}
.guide-card b{display:block;font-size:17px;line-height:1.4}
.guide-card em{display:block;color:var(--muted);font-style:normal;font-size:13px;margin-top:8px}
@media(max-width:760px){.guide-grid{grid-template-columns:1fr}}