/* ============ 基础 & 变量 ============ */
:root{
  --navy:#0d1b2a;
  --navy-2:#12304a;
  --steel:#415a77;
  --steel-light:#8fb3d4;
  --accent:#ff6b1a;
  --accent-dark:#e2560a;
  --text:#22303f;
  --muted:#5d7189;
  --line:#dfe7ef;
  --bg:#ffffff;
  --bg-alt:#f4f7fa;
  --radius:12px;
  --shadow:0 6px 24px rgba(13,27,42,.08);
  --shadow-lg:0 18px 48px rgba(13,27,42,.14);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--navy-2);text-decoration:none}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .5em;color:var(--navy);letter-spacing:-.02em}
h1{font-size:clamp(2rem,4.6vw,3.4rem);font-weight:800}
h2{font-size:clamp(1.5rem,3vw,2.3rem);font-weight:800}
h3{font-size:1.15rem;font-weight:700}
p{margin:0 0 1em}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.narrow{max-width:820px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:8px;border:2px solid transparent;
  font-weight:700;font-size:.95rem;cursor:pointer;transition:.22s ease;
  white-space:nowrap;text-align:center;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(255,107,26,.28)}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:0 10px 26px rgba(255,107,26,.36)}
.btn-ghost{background:transparent;border-color:#fff;color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.14)}
.btn-lg{padding:15px 30px;font-size:1.02rem}
.btn-sm{padding:9px 16px;font-size:.88rem}
.btn-block{width:100%;padding:15px;font-size:1.02rem}
.btn-whatsapp{background:#25D366;color:#fff}
.btn-whatsapp:hover{background:#1eb359}
.arrow{transition:transform .2s}
.btn:hover .arrow{transform:translateX(4px)}

/* ============ 头部 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px}
.logo-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:8px;background:var(--navy);
  color:var(--accent);display:grid;place-items:center;font-weight:900;letter-spacing:.5px;
}
.logo-text{font-weight:800;font-size:.82rem;line-height:1.15;color:var(--navy);letter-spacing:.06em}
.logo-text em{font-style:normal;color:var(--accent)}
.nav{display:flex;gap:26px}
.nav a{font-weight:600;font-size:.95rem;color:var(--navy);position:relative;padding:4px 0}
.nav a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--accent);transition:.2s}
.nav a:hover::after{width:100%}
.header-cta{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--navy);transition:.2s}

/* ============ 首屏 ============ */
.hero{position:relative;padding:70px 0 0;background:var(--bg-alt);overflow:hidden}
.hero-bg{
  position:absolute;inset:0;
  background:
    radial-gradient(900px 500px at 88% 8%, rgba(255,107,26,.10), transparent 60%),
    linear-gradient(180deg,#f4f7fa 0%,#eaf1f8 100%);
}
.hero-inner{
  position:relative;display:grid;grid-template-columns:1.05fr .95fr;
  gap:48px;align-items:center;padding-bottom:70px;
}
.eyebrow{
  display:inline-block;font-size:.75rem;font-weight:800;letter-spacing:.16em;
  color:var(--accent);text-transform:uppercase;margin-bottom:14px;
}
.hero h1 .hl{color:var(--accent)}
.lead{font-size:1.1rem;color:var(--muted);max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:24px}
.hero-points{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:8px 24px;font-size:.92rem;color:var(--steel);font-weight:600}
.hero-media{position:relative}
.hero-badge{
  position:absolute;right:-6px;bottom:-28px;background:var(--navy);color:#fff;
  padding:16px 20px;border-radius:12px;box-shadow:var(--shadow-lg);text-align:center;line-height:1.2;
}
.hero-badge strong{display:block;font-size:1.7rem;color:var(--accent)}
.hero-badge span{font-size:.72rem;opacity:.85;letter-spacing:.06em}

/* 图片占位块（替换真实照片后删掉 .img-ph 上的 data-ph 即可） */
.img-ph{
  position:relative;border-radius:var(--radius);overflow:hidden;background:#e8eef5;
  box-shadow:var(--shadow);aspect-ratio:9/7;
}
.img-ph.sm{aspect-ratio:3/2}
.img-ph.wide{aspect-ratio:4/3}
.img-ph::after{
  content:attr(data-ph);position:absolute;inset:0;display:grid;place-items:center;
  text-align:center;font-size:.78rem;color:#7d94ad;font-weight:700;
  background:rgba(255,255,255,.74);padding:12px;line-height:1.4;
}
.ph-illust{width:100%;height:100%;display:block}
/* 真实照片填充（2026-11-05）：img 填满占位容器并按比例裁切 */
.ph-img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s ease}
.prod-card:hover .ph-img{transform:scale(1.04)}

/* 信任条 */
.trustbar{position:relative;background:var(--navy);color:#fff;padding:22px 0}
.trustbar-inner{display:flex;flex-wrap:wrap;justify-content:space-between;gap:18px 30px}
.trust-item{text-align:center;flex:1;min-width:120px}
.trust-item strong{display:block;font-size:1.4rem;color:var(--accent);font-weight:800}
.trust-item span{font-size:.78rem;opacity:.82;letter-spacing:.04em}

/* ============ 通用区块 ============ */
.section{padding:80px 0}
.section-alt{background:var(--bg-alt)}
.section-dark{background:var(--navy);color:#fff}
.section-dark h2,.section-dark .eyebrow{color:#fff}
.section-dark .eyebrow{color:var(--accent)}
.section-head{max-width:760px;margin:0 auto 44px;text-align:center}
.section-head.light .section-sub{color:rgba(255,255,255,.75)}
.section-sub{color:var(--muted);font-size:1.05rem;margin-bottom:0}

/* ============ 产品卡 ============ */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.prod-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:0 0 22px;overflow:hidden;transition:.25s}
.prod-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.prod-card .img-ph{border-radius:0;box-shadow:none}
.prod-card h3{padding:20px 22px 6px;margin:0}
.prod-card p{padding:0 22px;color:var(--muted);font-size:.94rem;margin-bottom:12px}
.mini{list-style:none;padding:0 22px;margin:0;font-size:.86rem;color:var(--steel)}
.mini li{padding:6px 0;border-top:1px dashed var(--line)}
.mini li::before{content:"▸ ";color:var(--accent)}

/* ============ 规格表 ============ */
.spec-wrap{margin-top:52px;background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius);padding:32px;text-align:center}
.spec-title{margin-bottom:18px}
.table-scroll{overflow-x:auto;margin-bottom:24px}
.spec-table{width:100%;border-collapse:collapse;min-width:640px;text-align:left;background:#fff;border-radius:8px;overflow:hidden}
.spec-table th,.spec-table td{padding:13px 16px;border-bottom:1px solid var(--line);font-size:.92rem;vertical-align:top}
.spec-table th{background:var(--navy);color:#fff;width:150px;font-size:.85rem;letter-spacing:.04em}
.spec-table tr:last-child td{border-bottom:0}
.spec-table td{color:var(--muted)}

/* ============ 优势 ============ */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.why-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;transition:.25s}
.why-card:hover{box-shadow:var(--shadow);border-color:transparent}
.why-ico{
  width:44px;height:44px;border-radius:10px;background:rgba(255,107,26,.12);color:var(--accent);
  display:grid;place-items:center;font-weight:900;margin-bottom:14px;
}
.why-card p{color:var(--muted);font-size:.94rem;margin:0}

/* ============ 行业 ============ */
.ind-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.ind{
  background:#fff;border:1px solid var(--line);border-radius:10px;padding:22px 16px;
  text-align:center;font-weight:700;font-size:.95rem;transition:.2s;
}
.ind:hover{background:var(--navy);color:#fff;border-color:var(--navy)}

/* ============ 工厂 ============ */
.cap-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-bottom:36px}
.cap-item{text-align:center;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:26px 16px}
.cap-item strong{display:block;font-size:2rem;color:var(--accent);font-weight:800;margin-bottom:4px}
.cap-item span{font-size:.86rem;opacity:.8}
.cap-photos{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}

/* ============ 流程 ============ */
.steps{list-style:none;padding:0;margin:0;counter-reset:s;display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.steps li{position:relative;text-align:center;padding-top:44px}
.steps li::before{
  content:"";position:absolute;top:20px;left:50%;right:-50%;height:2px;background:var(--line);z-index:0;
}
.steps li:last-child::before{display:none}
.step-n{
  position:absolute;top:0;left:50%;transform:translateX(-50%);z-index:1;
  width:40px;height:40px;border-radius:50%;background:var(--navy);color:#fff;
  display:grid;place-items:center;font-weight:800;
}
.steps h3{font-size:1rem;margin-bottom:6px}
.steps p{font-size:.87rem;color:var(--muted);margin:0}

/* ============ 评价 ============ */
.t-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.t-card{
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--accent);
  border-radius:var(--radius);padding:26px 24px;margin:0;
}
.t-card p{font-size:.96rem;color:var(--text);font-style:italic}
.t-card footer strong{display:block;font-size:.94rem;color:var(--navy)}
.t-card footer span{font-size:.82rem;color:var(--muted)}

/* ============ FAQ ============ */
.faq{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.faq-item+.faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;text-align:left;background:none;border:0;padding:18px 22px;cursor:pointer;
  font-size:1rem;font-weight:700;color:var(--navy);display:flex;justify-content:space-between;align-items:center;gap:16px;
  font-family:inherit;
}
.faq-q:hover{background:var(--bg-alt)}
.faq-i{color:var(--accent);font-weight:900;font-size:1.2rem;transition:.2s}
.faq-item.open .faq-i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:400px}
.faq-a p{padding:0 22px 20px;margin:0;color:var(--muted);font-size:.94rem}

/* ============ 询盘区 ============ */
.section-cta{background:linear-gradient(180deg,#0d1b2a 0%,#12304a 100%);color:#fff}
.section-cta h2{color:#fff}
.section-cta .eyebrow{color:var(--accent)}
.quote-wrap{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:start}
.quote-copy p{color:rgba(255,255,255,.8)}
.check-list{list-style:none;padding:0;margin:0 0 24px}
.check-list li{padding:6px 0 6px 28px;position:relative;color:rgba(255,255,255,.9);font-size:.95rem}
.check-list li::before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:900}
.founder-note{border-left:3px solid var(--accent);background:rgba(255,255,255,.07);border-radius:0 var(--radius) var(--radius) 0;padding:16px 20px;margin:0 0 14px}
.founder-note strong{display:block;font-size:.95rem;color:#fff;margin-bottom:6px}
.founder-note p{margin:0;font-size:.92rem;color:rgba(255,255,255,.85);line-height:1.6}
.contact-direct{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);padding:20px;margin-bottom:14px}
.contact-direct p{margin-bottom:12px}
.contact-direct .btn{margin:0 10px 10px 0}
.tz{font-size:.82rem;color:rgba(255,255,255,.6)}

.quote-form{background:#fff;border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-lg);color:var(--text)}
.quote-form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.quote-form label{display:block;font-size:.85rem;font-weight:700;color:var(--navy);margin-bottom:12px}
.quote-form em{color:var(--accent);font-style:normal}
.quote-form input,.quote-form select,.quote-form textarea{
  width:100%;margin-top:6px;padding:11px 13px;border:1px solid var(--line);border-radius:8px;
  font-size:.94rem;font-family:inherit;color:var(--text);background:#fbfcfe;transition:.2s;
}
.quote-form input:focus,.quote-form select:focus,.quote-form textarea:focus{
  outline:none;border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px rgba(255,107,26,.14);
}
.quote-form textarea{resize:vertical}
.file-label input[type=file]{
  padding:10px;background:#fbfcfe;border:1px dashed var(--line);font-size:.86rem;
}
.consent{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:.82rem;color:var(--muted);line-height:1.5}
.consent input{width:18px;height:18px;margin-top:2px;flex:0 0 18px;accent-color:var(--accent)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.form-note{font-size:.8rem;color:var(--muted);text-align:center;margin:10px 0 0}
.form-msg{margin-top:12px;font-size:.9rem;font-weight:700;text-align:center;display:none}
.form-msg.ok{display:block;color:#1a8f4c}
.form-msg.err{display:block;color:#c62828}
#submitBtn:disabled{opacity:.6;cursor:wait}

/* ============ 页脚 ============ */
.site-footer{background:#08131f;color:rgba(255,255,255,.7);padding:56px 0 24px;font-size:.92rem}
.footer-inner{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:34px;margin-bottom:36px}
.f-col h4{color:#fff;font-size:.9rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px}
.f-col a{display:block;color:rgba(255,255,255,.7);padding:4px 0;font-size:.9rem}
.f-col a:hover{color:var(--accent)}
.logo-footer{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;letter-spacing:.06em;margin-bottom:12px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding-top:20px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:.82rem;
}
.legal a{color:rgba(255,255,255,.7)}
.legal a:hover{color:var(--accent)}

/* ============ 浮动组件 ============ */
.wa-float{
  position:fixed;right:20px;bottom:88px;width:52px;height:52px;border-radius:50%;
  background:#25D366;display:grid;place-items:center;box-shadow:0 8px 24px rgba(37,211,102,.4);z-index:70;
}
.wa-float:hover{transform:scale(1.06)}
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:65;display:none;gap:10px;
  padding:10px 14px;background:rgba(255,255,255,.97);border-top:1px solid var(--line);
  backdrop-filter:blur(8px);
}
.mobile-bar .btn{flex:1}
.cookie{
  position:fixed;left:16px;right:16px;bottom:16px;z-index:80;max-width:520px;margin:0 auto;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-lg);padding:18px 20px;display:flex;gap:16px;align-items:center;flex-wrap:wrap;
}
.cookie p{margin:0;font-size:.86rem;color:var(--muted);flex:1;min-width:220px}
.cookie-btns{display:flex;gap:10px}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-media{max-width:520px}
  .prod-grid,.why-grid,.t-grid{grid-template-columns:repeat(2,1fr)}
  .ind-grid{grid-template-columns:repeat(2,1fr)}
  .cap-photos{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .steps li::before{display:none}
  .quote-wrap{grid-template-columns:1fr;gap:32px}
  .footer-inner{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .nav{
    display:none;position:absolute;top:72px;left:0;right:0;background:#fff;
    flex-direction:column;gap:0;padding:10px 20px 18px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);
  }
  .nav.open{display:flex}
  .nav a{padding:12px 0;border-bottom:1px solid var(--line)}
  .nav-toggle{display:flex}
  .header-cta .btn-primary{display:none}
  .section{padding:56px 0}
  .hero{padding-top:44px}
  .hero-badge{right:10px;bottom:-20px;padding:12px 16px}
  .prod-grid,.why-grid,.t-grid,.cap-grid,.cap-photos{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .steps li{padding-top:0;padding-left:56px;text-align:left;margin-bottom:20px}
  .steps li::before{display:none}
  .step-n{left:0;transform:none}
  .spec-wrap{padding:20px}
  .quote-form{padding:22px}
  .quote-form .row{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr;gap:24px}
  .mobile-bar{display:flex}
  .wa-float{bottom:78px}
  .cookie{bottom:74px}
}
@media (max-width:480px){
  .trustbar-inner{justify-content:center}
  .trust-item{min-width:44%}
}
@media print{.mobile-bar,.wa-float,.cookie,.site-header{display:none}}