/* ===== JINMEIZHEN 外贸网站 全局样式 ===== */
:root{
  --ink:#0E1420;
  --navy:#151E2E;
  --navy-2:#1C2740;
  --gold:#C9A227;
  --gold-light:#E8C46C;
  --gold-dark:#8B6914;
  --text:#E9ECF2;
  --muted:#9AA6B8;
  --bg-light:#F7F5F0;
  --bg-light-2:#EFEBE2;
  --line:rgba(255,255,255,.08);
  --radius:14px;
  --shadow:0 20px 50px rgba(0,0,0,.35);
  --font:'Segoe UI','Helvetica Neue',Arial,'PingFang SC','Microsoft YaHei',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--ink);color:var(--text);line-height:1.7;font-size:16px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}

.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ===== 导航 ===== */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(14,20,32,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:22px;letter-spacing:.5px}
.brand img{height:44px;width:44px}
.brand .brand-en{color:var(--gold-light)}
.nav-links{display:flex;align-items:center;gap:34px;font-weight:600;font-size:15px}
.nav-links a{color:var(--muted);transition:.25s;position:relative}
.nav-links a:hover,.nav-links a.active{color:var(--gold-light)}
.nav-links a.active::after{content:'';position:absolute;left:0;bottom:-8px;width:100%;height:2px;background:var(--gold);border-radius:2px}
.btn{display:inline-block;padding:12px 26px;border-radius:999px;font-weight:700;font-size:15px;cursor:pointer;border:none;transition:.3s;text-align:center}
.btn-gold{background:linear-gradient(135deg,#E8C46C,#C9A227 55%,#8B6914);color:#1A1403;box-shadow:0 8px 24px rgba(201,162,39,.35)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(201,162,39,.5)}
.btn-ghost{background:transparent;color:var(--gold-light);border:1.5px solid rgba(201,162,39,.6)}
.btn-ghost:hover{background:rgba(201,162,39,.12);border-color:var(--gold-light)}
.nav .btn{padding:10px 22px;font-size:14px}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;width:40px;height:40px;position:relative}
.menu-toggle span{display:block;width:24px;height:2px;background:var(--text);margin:5px auto;transition:.3s}

/* ===== Hero ===== */
.hero{position:relative;min-height:92vh;display:flex;align-items:center;overflow:hidden;background:radial-gradient(1200px 600px at 80% -10%,rgba(201,162,39,.18),transparent 60%),radial-gradient(900px 500px at 10% 110%,rgba(201,162,39,.12),transparent 55%),linear-gradient(180deg,#0E1420,#121A2A)}
.hero::before{content:'';position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:34px 34px;mask-image:radial-gradient(ellipse at center,black 30%,transparent 75%)}
.hero-grid{position:absolute;right:-80px;top:50%;transform:translateY(-50%);width:520px;height:520px;opacity:.5}
.hero-grid svg{width:100%;height:100%}
.hero-inner{position:relative;z-index:2;padding:140px 0 100px;max-width:680px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--gold-light);font-weight:700;letter-spacing:2px;text-transform:uppercase;font-size:13px;border:1px solid rgba(201,162,39,.4);padding:7px 16px;border-radius:999px;margin-bottom:26px}
.hero h1{font-size:clamp(40px,6vw,68px);line-height:1.15;font-weight:800;margin-bottom:22px}
.hero h1 .gold{background:linear-gradient(120deg,#F4D98C,#C9A227 60%,#9A7B1E);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:clamp(16px,2vw,19px);color:var(--muted);max-width:560px;margin-bottom:38px}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap}

/* ===== 数据条 ===== */
.stats{position:relative;z-index:2;border-top:1px solid var(--line);background:rgba(21,30,46,.6)}
.stats-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.stat{padding:36px 24px;text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border-right:none}
.stat .num{font-size:38px;font-weight:800;color:var(--gold-light);line-height:1.1}
.stat .lbl{color:var(--muted);font-size:14px;margin-top:6px}

/* ===== Section 通用 ===== */
.section{padding:96px 0}
.section.alt{background:var(--navy)}
.section.light{background:var(--bg-light);color:#2A2A2A}
.section.light .sec-title,.section.light h2,.section.light h3{color:#1B1B1B}
.section.light .muted{color:#5A5A5A}
.sec-head{text-align:center;max-width:720px;margin:0 auto 60px}
.sec-tag{display:inline-block;color:var(--gold);font-weight:700;letter-spacing:2.5px;text-transform:uppercase;font-size:13px;margin-bottom:14px}
.sec-title{font-size:clamp(28px,4vw,42px);font-weight:800;line-height:1.25;margin-bottom:18px}
.sec-sub{color:var(--muted);font-size:17px}

/* ===== 产品卡片 ===== */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{background:var(--navy-2);border:1px solid var(--line);border-radius:var(--radius);padding:34px 28px;transition:.35s}
.card:hover{transform:translateY(-6px);border-color:rgba(201,162,39,.5);box-shadow:var(--shadow)}
.light .card{background:#fff;border-color:#E6E0D4;box-shadow:0 6px 24px rgba(0,0,0,.06)}
.light .card:hover{border-color:var(--gold)}
.card-icon{width:64px;height:64px;border-radius:16px;background:linear-gradient(135deg,rgba(232,196,108,.25),rgba(201,162,39,.12));display:flex;align-items:center;justify-content:center;margin-bottom:20px;color:var(--gold-light)}
.light .card-icon{background:linear-gradient(135deg,#F4E7C1,#EAD9A8);color:#8B6914}
.card-icon svg{width:32px;height:32px}
.card h3{font-size:19px;margin-bottom:10px;font-weight:700}
.card p{color:var(--muted);font-size:14.5px}
.card .more{display:inline-block;margin-top:16px;color:var(--gold-light);font-weight:700;font-size:14px}
.light .card .more{color:var(--gold-dark)}
.card .more:hover{text-decoration:underline}

/* ===== 产品页卡片（带图） ===== */
.prod-card{background:var(--navy-2);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.35s;display:flex;flex-direction:column}
.prod-card:hover{transform:translateY(-6px);border-color:rgba(201,162,39,.5);box-shadow:var(--shadow)}
.prod-thumb{height:210px;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,#1C2740,#0E1420);position:relative;overflow:hidden}
.prod-thumb svg{width:92px;height:92px;color:var(--gold-light)}
.prod-body{padding:24px;display:flex;flex-direction:column;flex:1}
.prod-body h3{font-size:18px;margin-bottom:8px}
.prod-body p{color:var(--muted);font-size:14px;flex:1}
.prod-tag{display:inline-block;margin-top:14px;color:var(--gold-light);font-weight:700;font-size:13.5px}

/* ===== About / Feature 行 ===== */
.feat-row{display:grid;grid-template-columns:1.1fr 1fr;gap:64px;align-items:center}
.feat-row .feat-media{background:linear-gradient(150deg,#1C2740,#0E1420);border:1px solid var(--line);border-radius:24px;min-height:420px;display:flex;align-items:center;justify-content:center;color:var(--gold-light)}
.feat-row .feat-media svg{width:200px;height:200px}
.feat-list{margin-top:26px;display:grid;gap:18px}
.feat-item{display:flex;gap:16px;align-items:flex-start}
.feat-item .dot{flex-shrink:0;width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,#E8C46C,#C9A227);color:#1A1403;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;margin-top:2px}
.feat-item h4{font-size:17px;margin-bottom:4px}
.feat-item p{color:var(--muted);font-size:14.5px}

/* ===== 认证徽章 ===== */
.badges{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.badge{background:var(--navy-2);border:1px solid var(--line);border-radius:var(--radius);padding:26px 16px}
.light .badge{background:#fff;border-color:#E6E0D4}
.badge .b-icon{font-size:30px;margin-bottom:10px}
.badge h4{font-size:15px;margin-bottom:4px}
.badge p{color:var(--muted);font-size:12.5px}

/* ===== CTA 横幅 ===== */
.cta{background:linear-gradient(135deg,rgba(201,162,39,.22),rgba(139,105,20,.1)),var(--navy-2);border:1px solid rgba(201,162,39,.4);border-radius:24px;padding:64px 48px;text-align:center;position:relative;overflow:hidden}
.cta h2{font-size:clamp(26px,3.6vw,38px);font-weight:800;margin-bottom:14px}
.cta p{color:var(--muted);max-width:560px;margin:0 auto 30px}

/* ===== 页脚 ===== */
.footer{background:#0A0F1A;border-top:1px solid var(--line);padding:70px 0 30px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;margin-bottom:50px}
.footer h4{font-size:16px;margin-bottom:18px;color:var(--gold-light)}
.footer ul li{margin-bottom:10px}
.footer ul a{color:var(--muted);font-size:14.5px;transition:.25s}
.footer ul a:hover{color:var(--gold-light)}
.footer .about-txt{color:var(--muted);font-size:14.5px;margin-top:16px;max-width:300px}
.footer .brand img{height:52px;width:52px}
.footer-bottom{border-top:1px solid var(--line);padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;color:var(--muted);font-size:13.5px}

/* ===== 联系/表单 ===== */
.contact-wrap{display:grid;grid-template-columns:1fr 1.2fr;gap:48px}
.contact-info h3{font-size:24px;margin-bottom:16px}
.contact-info p{color:var(--muted);margin-bottom:28px}
.c-item{display:flex;gap:16px;margin-bottom:22px;align-items:flex-start}
.c-item .c-ic{flex-shrink:0;width:46px;height:46px;border-radius:12px;background:linear-gradient(135deg,rgba(232,196,108,.22),rgba(201,162,39,.1));display:flex;align-items:center;justify-content:center;color:var(--gold-light)}
.c-item .c-ic svg{width:22px;height:22px}
.c-item h4{font-size:15px;margin-bottom:2px}
.c-item p{color:var(--muted);font-size:14px;margin:0}
.form-card{background:var(--navy-2);border:1px solid var(--line);border-radius:20px;padding:40px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:13.5px;font-weight:600;color:var(--muted);margin-bottom:8px}
.form-group input,.form-group select,.form-group textarea{width:100%;background:#0E1420;border:1px solid var(--line);border-radius:10px;padding:13px 16px;color:var(--text);font-family:inherit;font-size:15px;transition:.25s;outline:none}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--gold)}
.form-group textarea{min-height:130px;resize:vertical}
.form-note{color:var(--muted);font-size:13px;margin-top:14px}

/* ===== 页头 banner ===== */
.page-hero{background:linear-gradient(180deg,#121A2A,#0E1420);padding:170px 0 70px;text-align:center;border-bottom:1px solid var(--line)}
.page-hero h1{font-size:clamp(32px,5vw,50px);font-weight:800;margin-bottom:12px}
.page-hero p{color:var(--muted);max-width:640px;margin:0 auto;font-size:17px}

/* ===== 步骤 ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.step{position:relative;background:var(--navy-2);border:1px solid var(--line);border-radius:var(--radius);padding:30px 24px 24px}
.step::before{counter-increment:step;content:'0' counter(step);position:absolute;top:-16px;right:18px;font-size:52px;font-weight:800;color:rgba(201,162,39,.15);line-height:1}
.step h4{font-size:17px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14px}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .stats-inner{grid-template-columns:repeat(2,1fr)}
  .stat{border-bottom:1px solid var(--line)}
  .feat-row{grid-template-columns:1fr;gap:40px}
  .contact-wrap{grid-template-columns:1fr;gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .badges{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .nav-links{position:fixed;top:76px;left:0;right:0;background:rgba(14,20,32,.97);flex-direction:column;align-items:flex-start;padding:24px;gap:20px;transform:translateY(-130%);transition:.35s;border-bottom:1px solid var(--line)}
  .nav-links.open{transform:translateY(0)}
  .menu-toggle{display:block}
  .hero{min-height:80vh}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .cta{padding:44px 26px}
  .section{padding:70px 0}
}
/* ===== 语言切换 ===== */
.lang-switch{display:flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;flex-shrink:0}
.lang-switch button{background:transparent;border:none;color:var(--muted);padding:6px 14px;font-size:13px;font-weight:700;cursor:pointer;transition:.25s;font-family:inherit}
.lang-switch button:hover{color:var(--gold-light)}
.lang-switch button.active{background:linear-gradient(135deg,#E8C46C,#C9A227);color:#1A1403}
@media(max-width:768px){
  .lang-switch{margin-left:auto;margin-right:16px}
  .nav-links .lang-switch{display:none}
  .nav-links.open .lang-switch{display:flex;margin:0}
}