/* ============ Design Tokens ============ */
:root{
  --brand:#A83226;          /* 酱红 - 主品牌色（红包酱牛肉包装体系） */
  --brand-dark:#7E241B;     /* 深酱红 - hover/强调 */
  --ink:#23140F;            /* 深酱褐 - 深色区块/正文标题 */
  --ink-soft:#5C4A40;       /* 次级文字 */
  --paper:#FAF5EE;          /* 米白底 */
  --cream:#F3EAE0;          /* 浅奶油块面 */
  --gold:#C9A24B;           /* 金色 - 荣誉/清真点缀 */
  --gold-soft:#E5D3A8;
  --line:#E8DCCB;
  --white:#FFFFFF;
  --radius:12px;
  --shadow:0 2px 10px rgba(35,20,15,.07),0 8px 28px rgba(35,20,15,.06);
  --sans:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --serif:"Noto Serif SC","Source Han Serif SC","STSong",Georgia,serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.container{width:min(1180px,92%);margin:0 auto}
section{padding:88px 0}
.sec-head{max-width:640px;margin:0 auto 52px;text-align:center}
.sec-head .kicker{display:inline-block;font-size:13px;letter-spacing:.35em;color:var(--brand);font-weight:600;margin-bottom:14px;text-transform:uppercase}
.sec-head h2{font-family:var(--serif);font-size:36px;line-height:1.3;color:var(--ink)}
.sec-head p{margin-top:14px;color:var(--ink-soft);font-size:15px}
.gold-rule{width:56px;height:3px;background:var(--gold);margin:18px auto 0;border-radius:2px}

/* ============ Topbar ============ */
.topbar{background:var(--ink);color:var(--gold-soft);font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:38px}
.topbar .certs{display:flex;gap:18px;letter-spacing:.02em}
.topbar .tel{font-weight:600;color:var(--white)}

/* ============ Nav ============ */
header.nav{position:sticky;top:0;z-index:100;background:rgba(250,245,238,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:12px}
.logo-img{height:54px;width:auto;display:block}
.foot-logo{height:76px;width:auto;display:block;background:#fff;border-radius:10px;padding:8px;box-sizing:content-box}
.brand-txt .cn{font-family:var(--serif);font-size:21px;font-weight:700;letter-spacing:4px;color:var(--ink);line-height:1.2}
.brand-txt .en{font-size:10px;letter-spacing:.24em;color:var(--ink-soft);text-transform:uppercase}
.nav-links{display:flex;gap:34px;font-size:15px;font-weight:500}
.nav-links a{color:var(--ink-soft);padding:6px 0;border-bottom:2px solid transparent;transition:color .15s,border-color .15s}
.nav-links a:hover{color:var(--brand);border-color:var(--brand)}
.nav-actions{display:flex;align-items:center;gap:14px}
.lang-btn{border:1px solid var(--line);background:var(--white);border-radius:20px;padding:7px 16px;font-size:13px;font-weight:600;color:var(--ink);cursor:pointer;transition:border-color .15s,color .15s}
.lang-btn:hover{border-color:var(--brand);color:var(--brand)}
.nav-cta{background:var(--brand);color:#fff;padding:10px 22px;border-radius:24px;font-size:14px;font-weight:600;transition:background .15s}
.nav-cta:hover{background:var(--brand-dark)}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.hamburger span{width:22px;height:2px;background:var(--ink)}

/* ============ Hero ============ */
.hero{position:relative;min-height:640px;display:flex;align-items:center;padding:0;color:#fff}
.hero-bg{position:absolute;inset:0;background:url("../img/hero-gate.jpg") no-repeat;background-size:cover;background-position:center 60%}
.hero-mask{position:absolute;inset:0;background:linear-gradient(100deg,rgba(24,12,8,.88) 8%,rgba(35,20,15,.62) 46%,rgba(35,20,15,.18) 100%)}
.hero-inner{position:relative;width:min(1180px,92%);margin:0 auto;padding:96px 0;display:grid;grid-template-columns:1.45fr .85fr;gap:48px;align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:10px;border:1px solid rgba(229,211,168,.55);border-radius:24px;padding:8px 18px;font-size:13px;letter-spacing:.18em;color:var(--gold-soft);margin-bottom:26px}
.hero-tag::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gold)}
.hero h1{font-family:var(--serif);font-size:56px;line-height:1.28;letter-spacing:6px;max-width:640px}
.hero h1 em{font-style:normal;color:var(--gold)}
.hero .sub{margin-top:22px;font-size:17px;color:rgba(255,255,255,.88);letter-spacing:.06em;max-width:560px}
.hero .halal{margin-top:14px;font-size:14px;color:var(--gold-soft);letter-spacing:.1em}
.hero-cta{margin-top:40px;display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-block;padding:14px 34px;border-radius:28px;font-size:15px;font-weight:600;transition:background .15s,transform .15s}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark)}
.btn-ghost{border:1px solid rgba(255,255,255,.6);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}

/* Hero 印章板块 */
.hero-art{position:relative;isolation:isolate;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:40px;min-height:440px}
.hero-art::before{content:"";position:absolute;inset:-8% -12%;z-index:-1;background:radial-gradient(closest-side,rgba(24,12,8,.62),rgba(24,12,8,.3) 62%,transparent 84%)}
.hseal-wrap{position:relative;display:grid;place-items:center;width:300px;height:300px}
.hring{position:absolute;border-radius:50%}
.hring-1{width:296px;height:296px;border:1px dashed rgba(229,211,168,.22);animation:spin-slow 64s linear infinite}
.hring-2{width:252px;height:252px;border:1px solid rgba(229,211,168,.16)}
.hring-3{width:226px;height:226px;border:1px dashed rgba(229,211,168,.3);animation:spin-slow 48s linear infinite reverse}
.hseal{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;width:196px;height:196px;border-radius:50%;border:2px solid var(--gold);background:radial-gradient(circle at 50% 36%,rgba(201,162,75,.18),rgba(24,12,8,.44) 74%);box-shadow:0 0 0 8px rgba(201,162,75,.1),0 0 34px rgba(201,162,75,.25) inset,0 0 46px rgba(201,162,75,.16)}
.hseal em{font-style:normal;font-family:var(--serif);font-size:38px;font-weight:700;letter-spacing:.14em;padding-left:.14em;line-height:1.1;background:linear-gradient(180deg,#F1DDAF,var(--gold) 55%,#B08A36);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:var(--gold)}
.hpoints{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;max-width:380px}
.hpoints li{padding:8px 20px;font-size:13.5px;letter-spacing:.08em;color:var(--gold-soft);border:1px solid rgba(201,162,75,.45);border-radius:999px;background:rgba(24,12,8,.5)}
@keyframes spin-slow{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.hring{animation:none}}

/* ============ Stats ============ */
.stats{background:var(--ink);color:#fff;padding:0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:34px 20px;text-align:center;border-right:1px solid rgba(255,255,255,.09)}
.stat:nth-child(4n){border-right:0}
.stat:nth-child(-n+4){border-bottom:1px solid rgba(255,255,255,.09)}
.stat b{display:block;font-family:var(--serif);font-size:30px;color:var(--gold);line-height:1.2}
.stat span{display:block;margin-top:6px;font-size:13px;color:rgba(255,255,255,.72);letter-spacing:.05em}

/* ============ About ============ */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.about-txt .kicker{font-size:13px;letter-spacing:.35em;color:var(--brand);font-weight:600;text-transform:uppercase}
.about-txt h2{font-family:var(--serif);font-size:34px;margin:12px 0 22px;line-height:1.35}
.about-txt p{color:var(--ink-soft);font-size:15.5px;margin-bottom:16px;text-align:justify}
.brand-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.chip{background:var(--cream);border:1px solid var(--line);border-radius:20px;padding:7px 18px;font-size:14px;font-weight:600;color:var(--brand-dark)}
.about-imgs{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.about-imgs img{width:100%;height:100%;object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow)}
.about-imgs img:first-child{grid-row:span 2;height:100%}
.honor-strip{margin-top:56px;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.honor{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;display:flex;gap:14px;align-items:flex-start;box-shadow:var(--shadow)}
.honor .medal{flex:0 0 42px;width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--gold),#B08A36);color:#fff;display:flex;align-items:center;justify-content:center;font-size:19px}
.honor b{display:block;font-size:15.5px;color:var(--ink)}
.honor span{font-size:13px;color:var(--ink-soft)}

/* ============ Products ============ */
.products{background:var(--cream)}
.cat-tabs{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-bottom:44px}
.cat-tab{border:1px solid var(--line);background:var(--white);border-radius:24px;padding:9px 24px;font-size:14.5px;font-weight:600;color:var(--ink-soft);cursor:pointer;transition:all .15s}
.cat-tab:hover{border-color:var(--brand);color:var(--brand)}
.cat-tab.active{background:var(--brand);border-color:var(--brand);color:#fff}
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.pcard{background:var(--white);border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);transition:transform .15s,box-shadow .15s;display:flex;flex-direction:column}
.pcard:hover{transform:translateY(-3px);box-shadow:0 4px 14px rgba(35,20,15,.1),0 14px 34px rgba(35,20,15,.1)}
.pcard-img{position:relative;aspect-ratio:1/1;overflow:hidden;background:var(--paper)}
.pcard-img img{width:100%;height:100%;object-fit:cover}
.pcard-badge{position:absolute;top:12px;left:12px;background:rgba(35,20,15,.78);color:var(--gold-soft);font-size:11.5px;padding:4px 12px;border-radius:14px;letter-spacing:.08em}
.pcard-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:6px;flex:1}
.pcard-body h3{font-size:16.5px;font-weight:700;line-height:1.4}
.pcard-body .spec{font-size:13px;color:var(--ink-soft)}
.pcard-body .life{font-size:12.5px;color:var(--gold);font-weight:600;margin-top:auto;padding-top:8px}
.prod-note{text-align:center;margin-top:36px;font-size:13.5px;color:var(--ink-soft)}
.prod-note b{color:var(--brand)}

/* spec table */
.table-wrap{margin-top:56px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.table-scroll{overflow-x:auto}
table.spec{width:100%;border-collapse:collapse;font-size:13.5px;min-width:860px}
table.spec thead th{background:var(--ink);color:var(--gold-soft);font-weight:600;padding:13px 16px;text-align:left;letter-spacing:.04em;white-space:nowrap}
table.spec tbody td{padding:11px 16px;border-bottom:1px solid var(--cream);color:var(--ink-soft);white-space:nowrap}
table.spec tbody tr:last-child td{border-bottom:0}
table.spec tbody td:first-child{color:var(--brand);font-weight:600}
table.spec tbody tr:hover td{background:#FBF7F0}

/* ============ Factory ============ */
.factory-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.fcard{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);aspect-ratio:4/3}
.fcard.wide{grid-column:span 2;aspect-ratio:auto}
.fcard img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.fcard:hover img{transform:scale(1.03)}
.fcard .cap{position:absolute;left:0;right:0;bottom:0;padding:34px 18px 14px;background:linear-gradient(transparent,rgba(24,12,8,.78));color:#fff;font-size:14.5px;font-weight:600;letter-spacing:.04em}
.factory-points{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:40px}
.fpoint{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:24px;text-align:center}
.fpoint b{display:block;font-family:var(--serif);font-size:24px;color:var(--brand)}
.fpoint span{display:block;margin-top:6px;font-size:13.5px;color:var(--ink-soft)}

/* ============ Quality ============ */
.quality{background:var(--ink);color:#fff}
.quality .sec-head h2{color:#fff}
.quality .sec-head p{color:rgba(255,255,255,.7)}
.cert-badges{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:48px}
.cbadge{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);padding:30px 24px;text-align:center}
.cbadge .ico{width:56px;height:56px;margin:0 auto 16px;border-radius:50%;background:linear-gradient(135deg,var(--gold),#B08A36);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:20px;font-weight:700;color:var(--ink)}
.cbadge b{display:block;font-size:17px;letter-spacing:.05em}
.cbadge span{display:block;margin-top:8px;font-size:13px;color:rgba(255,255,255,.66)}
.cert-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.cert-wall img{width:100%;aspect-ratio:3/4;object-fit:cover;object-position:center;border-radius:8px;cursor:zoom-in;border:1px solid rgba(255,255,255,.15);transition:transform .15s}
.cert-wall img:hover{transform:translateY(-2px)}

/* ============ Partners ============ */
.partner-logos{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.plogo{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:26px 16px;text-align:center;box-shadow:var(--shadow)}
.plogo b{display:block;font-family:var(--serif);font-size:19px;color:var(--ink)}
.plogo span{display:block;margin-top:6px;font-size:12.5px;color:var(--ink-soft)}
.live-strip{margin-top:48px;display:grid;grid-template-columns:1.2fr .8fr;gap:44px;align-items:center;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.live-txt{padding:44px 46px}
.live-txt .kicker{font-size:13px;letter-spacing:.3em;color:var(--brand);font-weight:600}
.live-txt h3{font-family:var(--serif);font-size:26px;margin:12px 0 16px}
.live-txt p{color:var(--ink-soft);font-size:15px;margin-bottom:18px;text-align:justify}
.live-num{display:flex;gap:34px}
.live-num div b{display:block;font-family:var(--serif);font-size:28px;color:var(--brand)}
.live-num div span{font-size:13px;color:var(--ink-soft)}
.live-imgs{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:18px;height:100%}
.live-imgs img{width:100%;height:100%;object-fit:cover;border-radius:10px}

/* ============ Contact ============ */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px}
.info-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:36px;box-shadow:var(--shadow)}
.info-item{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--cream)}
.info-item:last-child{border-bottom:0}
.info-item .ico{flex:0 0 42px;width:42px;height:42px;border-radius:10px;background:var(--cream);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:18px}
.info-item b{display:block;font-size:15px}
.info-item span{font-size:14px;color:var(--ink-soft)}
.contact-form{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:36px;box-shadow:var(--shadow)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:13.5px;font-weight:600;color:var(--ink)}
.field input,.field textarea{border:1px solid var(--line);border-radius:8px;padding:12px 14px;font-size:14.5px;font-family:var(--sans);background:var(--paper);color:var(--ink);outline:none;transition:border-color .15s}
.field input:focus,.field textarea:focus{border-color:var(--brand)}
.field textarea{min-height:110px;resize:vertical}
.form-submit{margin-top:20px;width:100%;background:var(--brand);color:#fff;border:0;border-radius:26px;padding:14px;font-size:15.5px;font-weight:600;cursor:pointer;transition:background .15s}
.form-submit:hover{background:var(--brand-dark)}
.form-ok{display:none;margin-top:16px;background:#F0F7EE;border:1px solid #BFD8B8;color:#2F6B2A;border-radius:8px;padding:12px 16px;font-size:14px}
.form-err{display:none;margin-top:16px;background:#FBF0EE;border:1px solid #E4B9B2;color:#A83226;border-radius:8px;padding:12px 16px;font-size:14px}
.form-submit:disabled{opacity:.65;cursor:not-allowed}

/* ============ Footer ============ */
footer{background:var(--ink);color:rgba(255,255,255,.72);padding:56px 0 0;font-size:14px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:44px;padding-bottom:44px}
.foot-brand .cn{font-family:var(--serif);font-size:22px;color:#fff;letter-spacing:4px}
.foot-brand .en{font-size:11px;letter-spacing:.22em;color:var(--gold-soft);margin-top:4px;text-transform:uppercase}
.foot-brand p{margin-top:16px;line-height:1.9}
footer h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.08em}
footer li{margin-bottom:10px}
footer a:hover{color:var(--gold-soft)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;text-align:center;font-size:12.5px;color:rgba(255,255,255,.5)}
.totop{position:fixed;right:26px;bottom:26px;width:46px;height:46px;border-radius:50%;background:var(--brand);color:#fff;border:0;font-size:19px;cursor:pointer;box-shadow:var(--shadow);display:none;z-index:99}
.totop.show{display:block}

/* ============ Lightbox ============ */
.lightbox{position:fixed;inset:0;background:rgba(15,8,5,.9);display:none;align-items:center;justify-content:center;z-index:200;cursor:zoom-out;padding:4vh 4vw}
.lightbox.show{display:flex}
.lightbox img{max-width:100%;max-height:100%;border-radius:8px}

/* ============ Mobile ============ */
@media(max-width:1024px){
  .prod-grid{grid-template-columns:repeat(3,1fr)}
  .cert-wall{grid-template-columns:repeat(3,1fr)}
  .partner-logos{grid-template-columns:repeat(3,1fr)}
  .factory-points{grid-template-columns:repeat(2,1fr)}
  .hero-inner{grid-template-columns:1fr;gap:10px}
  .hero-art{min-height:0;margin-top:34px}
  .hero h1{font-size:44px}
}
@media(max-width:768px){
  section{padding:60px 0}
  .topbar .certs{display:none}
  .topbar .container{justify-content:flex-end}
  .nav-links{position:fixed;top:0;right:-280px;width:270px;height:100vh;background:var(--white);flex-direction:column;padding:90px 30px 30px;gap:8px;box-shadow:-8px 0 30px rgba(0,0,0,.12);transition:right .25s;z-index:150}
  .nav-links.open{right:0}
  .nav-links a{padding:12px 0;border-bottom:1px solid var(--cream);font-size:16px}
  .hamburger{display:flex;z-index:160}
  .nav-cta{display:none}
  .hero{min-height:560px}
  .hero-art{display:none}
  .hero h1{font-size:34px;letter-spacing:3px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(4n){border-right:1px solid rgba(255,255,255,.09)}
  .stat:nth-child(2n){border-right:0}
  .stat:nth-child(-n+4){border-bottom:1px solid rgba(255,255,255,.09)}
  .stat:nth-child(-n+6){border-bottom:1px solid rgba(255,255,255,.09)}
  .about-grid,.contact-grid,.live-strip{grid-template-columns:1fr}
  .honor-strip{grid-template-columns:1fr}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .factory-grid{grid-template-columns:1fr 1fr}
  .fcard.wide{grid-column:span 2}
  .cert-badges{grid-template-columns:1fr}
  .cert-wall{grid-template-columns:repeat(2,1fr)}
  .partner-logos{grid-template-columns:repeat(2,1fr)}
  .form-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .live-txt{padding:30px}
  .info-card,.contact-form{padding:26px}
}