:root{
  --navy:#10243e;
  --navy-2:#16335a;
  --red:#e63946;
  --red-d:#c1121f;
  --ink:#1f2933;
  --muted:#5b6b7b;
  --line:#e6ebf1;
  --bg:#ffffff;
  --bg-alt:#f5f8fc;
  --shadow:0 10px 30px rgba(16,36,62,.10);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI","PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
.container{width:min(1140px,92vw);margin:0 auto}
h1,h2,h3{line-height:1.25;color:var(--navy)}

/* Header */
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;flex-direction:column;line-height:1.1}
.brand-mark{font-weight:800;letter-spacing:1px;color:var(--navy);font-size:1.25rem}
.brand-sub{font-size:.7rem;color:var(--muted)}
.nav-links{display:flex;gap:28px}
.nav-links a{font-size:.95rem;color:var(--navy);font-weight:500;transition:color .2s}
.nav-links a:hover{color:var(--red)}
.nav-right{display:flex;align-items:center;gap:12px}
.lang-switch{display:inline-flex;border:1px solid var(--navy);border-radius:999px;overflow:hidden}
.lang-btn{background:transparent;border:none;color:var(--navy);padding:6px 11px;font-size:.76rem;font-weight:700;cursor:pointer;transition:.2s;line-height:1}
.lang-btn + .lang-btn{border-left:1px solid var(--navy)}
.lang-btn.active{background:var(--navy);color:#fff}
.menu-btn{display:none;background:none;border:none;font-size:1.5rem;color:var(--navy);cursor:pointer}

/* 全局淡色水印 + 品牌 LOGO */
.watermark{position:fixed;inset:0;z-index:9999;pointer-events:none;background-image:url("assets/watermark.png");background-repeat:repeat;background-size:320px auto;opacity:.05}
.brand-logo{height:30px;width:auto;display:block}

/* OZON 店铺板块 */
.ozon-lead{max-width:720px;margin:0 auto 36px;text-align:center;color:var(--muted);font-size:1rem}
.ozon-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:22px}
.ozon-card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;display:flex;flex-direction:column;transition:.2s}
.ozon-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#cfe0f0}
.ozon-thumb{height:210px;overflow:hidden;border-radius:0}
.ozon-thumb svg{display:block;width:100%;height:100%}
.ozon-body{padding:22px;display:flex;flex-direction:column;gap:8px;flex:1}
.ozon-body h3{font-size:1.1rem}
.ozon-body p{color:var(--muted);font-size:.92rem;flex:1}
.ozon-link{color:var(--red);font-weight:700;font-size:.92rem}
.ozon-more{text-align:center;color:var(--muted);font-size:.9rem;margin-bottom:24px}
.ozon-cta{text-align:center}
@media(max-width:900px){.ozon-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.ozon-grid{grid-template-columns:1fr}}

/* 产品目录（OZON 在售商品列表） */
.catalog-lead{max-width:760px;margin:0 auto 28px;text-align:center;color:var(--muted);font-size:1rem}
.catalog-toolbar{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:20px;justify-content:space-between}
.catalog-toolbar input{flex:1;min-width:220px;border:1px solid var(--line);border-radius:999px;padding:12px 18px;font-size:.95rem;font-family:inherit;background:#fff;color:var(--ink)}
.catalog-toolbar input:focus{outline:none;border-color:var(--red)}
.catalog-count{color:var(--muted);font-size:.85rem;white-space:nowrap;font-weight:600}
.catalog-list{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff}
.catalog-item{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 20px;border-bottom:1px solid var(--line);transition:.15s}
.catalog-item:last-child{border-bottom:none}
.catalog-item:hover{background:var(--bg-alt)}
.catalog-title{color:var(--ink);font-size:.95rem;line-height:1.45}
.catalog-go{color:var(--red);font-weight:700;font-size:.85rem;white-space:nowrap}
.catalog-empty{text-align:center;color:var(--muted);padding:30px 0}
@media(max-width:640px){.catalog-item{flex-direction:column;align-items:flex-start;gap:6px}}

/* Hero */
.hero{position:relative;background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 60%,#0c1d33 100%);color:#fff;overflow:hidden}
.hero::after{content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(230,57,70,.35),transparent 65%)}
.hero-inner{position:relative;z-index:2;padding:96px 0 110px;max-width:760px}
.hero-eyebrow{display:inline-block;color:#9fd0ff;font-weight:600;letter-spacing:2px;font-size:.8rem;text-transform:uppercase;margin-bottom:18px}
.hero-title{font-size:clamp(2rem,5vw,3.4rem);color:#fff;font-weight:800;margin-bottom:10px}
.hero-tagline{font-size:1.2rem;color:#cfe2ff;font-weight:600;margin-bottom:18px}
.hero-desc{color:#c5d4e6;font-size:1.05rem;max-width:620px;margin-bottom:30px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 28px;border-radius:999px;font-weight:700;font-size:.95rem;transition:.2s;cursor:pointer;border:2px solid transparent}
.btn-primary{background:var(--red);color:#fff}
.btn-primary:hover{background:var(--red-d)}
.btn-ghost{border-color:#fff;color:#fff}
.btn-ghost:hover{background:#fff;color:var(--navy)}

/* Stats */
.stats{background:var(--navy-2);color:#fff}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:34px 0}
.stat{text-align:center}
.stat-num{font-size:2.2rem;font-weight:800;color:#fff}
.stat-num span{color:var(--red)}
.stat-label{color:#bcd3ee;font-size:.9rem;margin-top:4px}

/* Sections */
.section{padding:84px 0}
.section-alt{background:var(--bg-alt)}
.section-head{text-align:center;margin-bottom:48px}
.section-kicker{display:inline-block;color:var(--red);font-weight:700;letter-spacing:2px;font-size:.8rem;text-transform:uppercase;margin-bottom:10px}
.section-head h2{font-size:clamp(1.6rem,3.5vw,2.4rem);font-weight:800}

/* About */
.about-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:48px;align-items:start}
.about-text p{color:var(--muted);margin-bottom:16px}
.check-list{list-style:none;margin-top:10px}
.check-list li{position:relative;padding-left:26px;margin-bottom:10px;color:var(--ink)}
.check-list li::before{content:"";position:absolute;left:0;top:9px;width:14px;height:8px;border-left:3px solid var(--red);border-bottom:3px solid var(--red);transform:rotate(-45deg)}
.about-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:30px;box-shadow:var(--shadow)}
.about-card h3{margin-bottom:20px;font-size:1.2rem}
.adv-item{display:flex;gap:16px;padding:14px 0;border-bottom:1px solid var(--line)}
.adv-item:last-child{border-bottom:none}
.adv-no{font-weight:800;color:var(--red);font-size:1.1rem;min-width:34px}
.adv-item strong{display:block;color:var(--navy)}
.adv-item p{font-size:.9rem;color:var(--muted)}

/* Products */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.prod-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px;transition:.2s;position:relative;overflow:hidden}
.prod-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#cfe0f0}
.prod-no{display:block;font-size:2.4rem;font-weight:800;color:#e7eef6;margin-bottom:6px}
.prod-card h3{font-size:1.15rem;margin-bottom:8px}
.prod-card p{color:var(--muted);font-size:.92rem}

/* Brands */
.brand-grid{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.brand-chip{display:inline-flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:10px 20px;font-weight:600;color:var(--navy);transition:.2s}
.brand-chip:hover{border-color:var(--red);color:var(--red);box-shadow:0 4px 14px rgba(16,36,62,.08)}
.brand-logo{height:22px;width:auto;max-width:84px;display:block;flex:0 0 auto}
.brand-name{line-height:1;white-space:nowrap}
.brand-note{text-align:center;color:var(--muted);margin-top:28px;font-size:.95rem}

/* Suppliers (国际配套品牌 LOGO 墙) */
.supplier-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(146px,1fr));gap:14px}
.supplier-chip{background:#fff;border:1px solid var(--line);border-radius:12px;min-height:66px;display:flex;align-items:center;justify-content:center;padding:14px 10px;transition:.2s}
.supplier-chip:hover{border-color:var(--red);box-shadow:0 6px 18px rgba(16,36,62,.1);transform:translateY(-2px)}
.supplier-logo{height:30px;width:auto;max-width:118px;display:block}

/* Services */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.svc-card{background:#fff;border-top:4px solid var(--red);border-radius:14px;padding:30px;box-shadow:var(--shadow)}
.svc-card h3{font-size:1.2rem;margin-bottom:12px}
.svc-card p{color:var(--muted);font-size:.95rem}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact-info{background:var(--navy);color:#fff;border-radius:16px;padding:34px}
.info-row{display:flex;flex-direction:column;gap:2px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.12)}
.info-row:last-child{border-bottom:none}
.info-row span{font-size:.75rem;color:#9fd0ff;letter-spacing:1px;text-transform:uppercase}
.info-row strong{font-size:1.05rem;font-weight:600}
.wechat-qr{display:block;width:128px;height:128px;border-radius:10px;background:#fff;padding:7px;margin-top:8px;box-shadow:0 4px 14px rgba(0,0,0,.25)}
.contact-form{display:flex;flex-direction:column;gap:14px}
.contact-form input,.contact-form textarea{border:1px solid var(--line);border-radius:10px;padding:13px 15px;font-size:.95rem;font-family:inherit;background:#fff;color:var(--ink);resize:vertical}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--red)}
.form-note{font-size:.8rem;color:var(--muted)}

/* Footer */
.footer{background:var(--navy);color:#cdd9e8;padding:40px 0}
.footer-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.footer-sub{font-size:.9rem;color:#9bb2cc;margin-top:6px}
.footer-copy{font-size:.85rem;color:#7e94b0}

/* Responsive */
@media(max-width:900px){
  .about-grid,.contact-grid{grid-template-columns:1fr;gap:30px}
  .prod-grid,.svc-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:26px}
}
@media(max-width:640px){
  .nav-links{position:fixed;top:68px;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:0;max-height:0;overflow:hidden;transition:max-height .3s;box-shadow:var(--shadow)}
  .nav-links.open{max-height:320px}
  .nav-links a{padding:14px 6vw;border-bottom:1px solid var(--line)}
  .menu-btn{display:block}
  .prod-grid,.svc-grid{grid-template-columns:1fr}
  .hero-inner{padding:70px 0 84px}
}

/* ===== HEFFEL 自主品牌故事 ===== */
.section-brand{background:linear-gradient(180deg,#ffffff 0%,#f6fafd 100%)}
.brand-story{max-width:920px;margin:0 auto;text-align:center}
.brand-story-logo{display:inline-flex;align-items:center;font-family:"Arial Black","Arial",sans-serif;font-weight:900;font-size:clamp(44px,9vw,84px);line-height:1;color:var(--navy);letter-spacing:2px;margin:6px 0 26px}
.brand-story-logo .e-mark{display:inline-flex;flex-direction:column;justify-content:space-evenly;width:.46em;height:.82em;background:var(--navy);border-radius:7px;margin:0 .06em;padding:.1em .05em}
.brand-story-logo .e-mark i{display:block;height:.14em;background:#fff;border-radius:2px}
.brand-story-lead{font-size:clamp(1.05rem,2.4vw,1.3rem);font-weight:600;color:var(--navy);margin:0 auto 22px;max-width:680px}
.brand-story-body{max-width:760px;margin:0 auto}
.brand-story-body p{margin:0 0 15px;line-height:1.95;color:var(--muted);font-size:1rem;text-align:justify}
.brand-pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:38px;text-align:left}
.pillar{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;transition:.2s}
.pillar:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#cfe0f0}
.pillar-no{font-weight:800;color:var(--red);font-size:.9rem;letter-spacing:1px}
.pillar h4{margin:9px 0 8px;font-size:1.06rem;color:var(--navy)}
.pillar p{margin:0;font-size:.92rem;color:var(--muted);line-height:1.75}
@media(max-width:900px){
  .brand-pillars{grid-template-columns:1fr}
}