*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Arial,"Microsoft YaHei",sans-serif;background:#0b0907;color:#f6efe3;line-height:1.7}
a{text-decoration:none;color:inherit}img{display:block;max-width:100%;height:auto}
:root{--gold:#d2a65c;--gold2:#f0d29a;--paper:#f7f1e8;--paper2:#fffaf2;--ink:#1e1a14;--muted:#6f6152;--line:#e2d3bb;--shadow:0 18px 50px rgba(44,30,12,.10);--shadow-strong:0 24px 70px rgba(44,30,12,.18)}
body[data-lang="zh"] .only-en{display:none!important}
body[data-lang="en"] .only-zh{display:none!important}
body[data-lang="en"] .zh-bi{display:none!important}

.container{width:min(1280px,88vw);margin:0 auto}
.section{padding:88px 0}.section.light{background:var(--paper);color:var(--ink)}.section.dark{background:#0b0907;color:#fff}
.eyebrow{display:inline-block;color:#9b6c2d;letter-spacing:4px;font-size:13px;font-weight:700;margin-bottom:12px;text-transform:uppercase}
.section-title{font-size:clamp(32px,3.4vw,46px);line-height:1.16;margin-bottom:18px;max-width:960px;text-wrap:balance}.section-desc{font-size:18px;color:var(--muted);max-width:780px}.section.dark .section-desc{color:#d9ccb6}

.site-header{position:fixed;top:0;left:0;width:100%;z-index:999;backdrop-filter:blur(12px);background:rgba(9,8,7,.82);border-bottom:1px solid rgba(210,166,92,.15)}
.site-header .container{width:min(1840px,96vw)}
.site-header .inner{height:92px;display:flex;align-items:center;justify-content:space-between;gap:22px}
.brand{display:flex;align-items:center;gap:14px;min-width:0;flex:0 0 auto}.brand img{width:68px;height:68px;object-fit:contain}.brand strong{display:block;font-size:22px;line-height:1.05;white-space:nowrap}.brand span{display:block;color:var(--gold2);font-size:18px;letter-spacing:4px;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:clamp(10px,.85vw,18px);flex-wrap:nowrap;justify-content:center;flex:1 1 auto;min-width:0}.main-nav a{position:relative;display:flex;flex-direction:column;align-items:center;flex:0 0 auto;font-size:13px;font-weight:700;color:#f6efe3;padding:6px 1px;white-space:nowrap;transition:color .25s ease}.main-nav a span,.main-nav a em{white-space:nowrap}.main-nav a:after{content:'';position:absolute;left:50%;bottom:0;width:0;height:1px;background:linear-gradient(90deg,transparent,var(--gold2),transparent);transform:translateX(-50%);transition:width .28s ease}.main-nav a em{font-style:normal;font-size:10px;color:#d8c8ac;letter-spacing:.9px;margin-top:2px}.main-nav a:hover,.main-nav a.active{color:var(--gold)}.main-nav a:hover:after,.main-nav a.active:after{width:100%}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}.lang-btn,.ghost-btn,.solid-btn{position:relative;overflow:hidden;display:inline-flex;align-items:center;justify-content:center;border:1px solid rgba(210,166,92,.55);border-radius:6px;padding:11px 16px;font-weight:700;line-height:1.2;white-space:nowrap;cursor:pointer;transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease}.lang-btn{min-width:118px}.header-actions .solid-btn{min-width:150px}.lang-btn,.ghost-btn{background:rgba(0,0,0,.22);color:#f3e3bf}.solid-btn{background:var(--gold);color:#171108}.lang-btn:before,.ghost-btn:before,.solid-btn:before{content:'';position:absolute;inset:0;background:linear-gradient(120deg,transparent 0%,rgba(255,255,255,.22) 45%,transparent 70%);transform:translateX(-120%);transition:transform .55s ease}.lang-btn:hover,.ghost-btn:hover,.solid-btn:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(210,166,92,.22);border-color:rgba(240,210,154,.85)}.lang-btn:hover:before,.ghost-btn:hover:before,.solid-btn:hover:before{transform:translateX(120%)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid rgba(210,166,92,.45);border-radius:8px;background:rgba(0,0,0,.25);padding:10px;cursor:pointer}
.nav-toggle span{display:block;height:2px;background:var(--gold2);margin:5px 0;transition:.2s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}.nav-toggle.open span:nth-child(2){opacity:0}.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
a:focus-visible,button:focus-visible{outline:3px solid var(--gold2);outline-offset:3px}

.hero{position:relative;min-height:900px;background:url('assets/hero-home-clean.png') center/cover no-repeat;display:flex;align-items:center}
.hero:before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.86) 0%,rgba(0,0,0,.58) 34%,rgba(0,0,0,.18) 62%,rgba(0,0,0,.06) 100%)}
.hero .container{position:relative;z-index:2;padding-top:110px;padding-bottom:90px}
.hero-grid{display:grid;grid-template-columns:1.08fr .52fr;gap:36px;align-items:start}
.hero-kicker{font-size:28px;font-weight:800;color:var(--gold2);margin-bottom:16px}
.hero h1{font-size:clamp(44px,4.8vw,62px);line-height:1.08;letter-spacing:-1px;max-width:740px}.hero h1.en{font-family:Georgia,serif;font-size:clamp(42px,4.4vw,56px)}
.hero .sub-line{font-family:Georgia,serif;color:var(--gold2);font-size:30px;line-height:1.2;margin-top:18px}.hero .summary{font-size:20px;color:#efe2cf;margin-top:18px;max-width:640px}.hero .summary .enline{display:block;font-size:18px;color:#d6c7ac;margin-top:6px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-top:34px}
.hero-panel{padding:26px 24px;background:rgba(13,10,8,.46);border:1px solid rgba(210,166,92,.20);border-radius:18px;box-shadow:0 18px 50px rgba(0,0,0,.22)}
.hero-panel .item{padding:16px 0;border-bottom:1px solid rgba(210,166,92,.16)}.hero-panel .item:last-child{border-bottom:none;padding-bottom:0}.hero-panel b{display:block;font-size:18px;color:#fff}.hero-panel span{display:block;margin-top:4px;color:#d9ccb6;font-size:12px;letter-spacing:.8px}

.product-strip{background:#0b0907;border-top:1px solid rgba(210,166,92,.12);border-bottom:1px solid rgba(210,166,92,.12)}
.product-strip .container{display:grid;grid-template-columns:repeat(6,1fr)}
.product-link{position:relative;display:flex;align-items:center;gap:14px;padding:22px 16px;border-right:1px solid rgba(210,166,92,.12);min-height:118px;transition:background .25s ease,transform .25s ease}.product-link:hover{background:rgba(210,166,92,.08);transform:translateY(-2px)}.product-link:last-child{border-right:none}
.product-link .product-mark{flex:0 0 58px;height:58px;border:1px solid rgba(210,166,92,.35);border-radius:14px;display:grid;place-items:center;color:var(--gold2);font:700 15px Georgia,serif;letter-spacing:1px;background:rgba(255,255,255,.04)}.product-link b{display:block;font-size:17px}.product-link span{display:block;font-size:12px;color:#d0c2a8;letter-spacing:.5px;margin-top:4px}

.cards3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:38px}.card{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow);transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-strong);border-color:#d9bd88}.card .thumb{height:260px;overflow:hidden}.card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}.card:hover .thumb img{transform:scale(1.04)}.card .body{padding:26px}.card h3{font-size:30px;line-height:1.2}.card .sub{display:block;color:#9b6c2d;font-size:12px;letter-spacing:1px;margin-top:6px}.card p{margin-top:14px;font-size:17px;color:var(--muted)}
.card .more{display:inline-flex;margin-top:18px;color:#9b6c2d;font-weight:800}

.band{background:#12100d;color:#fff;padding:56px 0}.band .container{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}.stat{padding:8px 0}.stat b{display:block;font:700 44px Georgia,serif;color:var(--gold2)}.stat span{display:block;margin-top:8px;color:#d8c8ad;font-size:15px}

.split{display:grid;grid-template-columns:1.02fr .98fr;gap:42px;align-items:center}.panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:var(--shadow)}
.panel p{font-size:17px;color:var(--muted)}.panel p + p{margin-top:14px}
.visual img{border-radius:20px;box-shadow:0 22px 60px rgba(0,0,0,.14);transition:transform .35s ease,box-shadow .35s ease}.visual img:hover{transform:translateY(-4px);box-shadow:0 28px 76px rgba(0,0,0,.18)}
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:24px}.feature{background:var(--paper2);border:1px solid var(--line);border-radius:16px;padding:18px;transition:transform .24s ease,border-color .24s ease}.feature:hover{transform:translateY(-3px);border-color:#d7b779}.feature b{display:block;font-size:18px;color:var(--ink)}.feature p{font-size:14px;margin-top:6px;color:var(--muted)}
.edit-note{margin-top:18px;background:#fff7e8;border:1px dashed var(--gold);padding:14px 16px;border-radius:12px;color:#8a6232;font-size:14px}

.reason-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:36px}.reason{padding:24px;background:#fff;border-radius:18px;border:1px solid var(--line);box-shadow:var(--shadow)}.reason h4{font-size:22px}.reason p{font-size:15px;color:var(--muted);margin-top:8px}

.products-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:30px}.product-card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow);transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-strong);border-color:#d9bd88}.product-card > img,.product-image-button{width:100%;height:285px;object-fit:contain;padding:22px;background:radial-gradient(circle at 50% 36%,#fff 0%,#fffaf2 48%,#f1e5d3 100%);transition:transform .5s ease}.product-image-button{position:relative;display:block;border:0;border-bottom:1px solid #eadbc2;cursor:zoom-in;overflow:hidden}.product-image-button:before{content:'';position:absolute;inset:14px;border:1px solid rgba(210,166,92,.22);border-radius:16px;box-shadow:inset 0 14px 42px rgba(107,75,34,.08);pointer-events:none}.product-image-button:after{content:'点击查看高清图';position:absolute;right:18px;bottom:16px;background:rgba(18,13,8,.72);color:#f0d29a;border:1px solid rgba(240,210,154,.35);border-radius:999px;padding:6px 12px;font-size:12px;letter-spacing:.5px;opacity:0;transform:translateY(8px);transition:opacity .25s ease,transform .25s ease}.product-image-button img{width:100%;height:100%;object-fit:contain;transition:transform .5s ease}.product-card:hover .product-image-button img,.product-image-button:hover img{transform:scale(1.035)}.product-image-button:hover:after,.product-image-button:focus-visible:after{opacity:1;transform:none}.product-card > img{display:block}.product-card .body{padding:22px}.product-card h3{font-size:26px;line-height:1.2}.product-card p{font-size:16px;color:var(--muted);margin-top:10px}
.product-card .code{display:inline-flex;min-width:52px;height:32px;padding:0 12px;align-items:center;justify-content:center;border-radius:999px;background:#f2dfbd;color:#6d481c;font-weight:800;letter-spacing:.8px;font-size:12px;margin-bottom:12px}
.spec-list{margin-top:16px;border-top:1px solid #eadfcd}.spec-list div{display:grid;grid-template-columns:110px 1fr;gap:12px;padding:9px 0;border-bottom:1px solid #f0e5d4}.spec-list dt{font-size:12px;text-transform:uppercase;letter-spacing:.7px;color:#9b6c2d;font-weight:800}.spec-list dd{font-size:14px;color:#3b3127}
.product-overview{margin-top:34px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px;box-shadow:var(--shadow)}.product-overview img{width:100%;max-height:980px;object-fit:contain}
.product-family-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:30px}.product-family{background:#fff;border:1px solid var(--line);border-radius:18px;padding:25px;box-shadow:var(--shadow)}.product-family .code{display:inline-flex;min-width:52px;height:36px;padding:0 12px;align-items:center;justify-content:center;border-radius:999px;background:#f2dfbd;color:#6d481c;font-weight:800;letter-spacing:.8px}.product-family h3{font-size:24px;line-height:1.25;margin-top:16px}.product-family p{color:var(--muted);margin-top:9px}

.product-lightbox{position:fixed;inset:0;z-index:2000;display:none;align-items:center;justify-content:center;padding:34px;background:rgba(5,4,3,.88);backdrop-filter:blur(10px)}.product-lightbox.open{display:flex}.product-lightbox-inner{position:relative;width:min(1180px,94vw);max-height:90vh;background:linear-gradient(180deg,#fffaf2,#f2e5d2);border:1px solid rgba(240,210,154,.38);border-radius:22px;box-shadow:0 30px 90px rgba(0,0,0,.45);padding:28px}.product-lightbox img{width:100%;max-height:74vh;object-fit:contain}.product-lightbox-title{margin-top:14px;color:#3b3127;font-weight:800;text-align:center}.product-lightbox-close{position:absolute;right:18px;top:16px;width:42px;height:42px;border:1px solid rgba(210,166,92,.45);border-radius:50%;background:#171108;color:#f0d29a;font-size:26px;line-height:1;cursor:pointer}.product-lightbox-close:hover{background:#d2a65c;color:#171108}

.sub-hero{position:relative;padding:168px 0 86px;background:url('assets/hero-home-clean.png') center/cover no-repeat}.sub-hero:before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.82),rgba(0,0,0,.38))}.sub-hero .container{position:relative;z-index:2}.sub-hero h1{font-size:clamp(40px,4.3vw,54px);line-height:1.1}.sub-hero p{font-size:20px;color:#eadfce;max-width:860px;margin-top:16px}

.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}.contact-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow);transition:transform .28s ease,box-shadow .28s ease}.contact-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-strong)}.contact-card h3{font-size:28px}.contact-card p{font-size:17px;color:var(--muted);margin-top:10px}.contact-card a{color:#9b6c2d;font-weight:700}
.qr-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:18px}.qr-box{background:#faf6ef;border:1px solid var(--line);border-radius:16px;padding:16px;text-align:center}.qr-box img{width:100%;max-width:250px;margin:0 auto 10px;border-radius:8px}.qr-box b{display:block;font-size:18px}.qr-box span{display:block;font-size:13px;color:#8b6837;margin-top:6px}
.contact-list{margin-top:14px;padding-left:20px;color:var(--muted)}.contact-list li{margin:8px 0}.contact-btn{display:inline-flex;margin-top:18px}

.cta{background:linear-gradient(90deg,#0c0907,#17120d);padding:42px 0;border-top:1px solid rgba(210,166,92,.16);border-bottom:1px solid rgba(210,166,92,.16)}
.cta .container{display:flex;align-items:center;justify-content:space-between;gap:20px}.cta h3{font-size:34px}.cta p{font-size:17px;color:#e5d6bd}

footer{background:#070605;border-top:1px solid rgba(210,166,92,.15);padding:34px 0}.footer-grid{display:flex;align-items:center;justify-content:space-between;gap:20px}.footer-brand{display:flex;align-items:center;gap:16px}.footer-brand img{width:70px;height:70px;object-fit:contain}.footer-brand b{display:block;font-size:22px}.footer-brand p{color:#d8c7a9}.footer-meta{text-align:right;color:#d8c7a9}

@media (max-width:1500px){
.site-header .inner{position:relative}.nav-toggle{display:block;order:2;margin-left:auto}.main-nav{display:none;position:absolute;left:0;right:0;top:100%;background:rgba(9,8,7,.98);border:1px solid rgba(210,166,92,.18);border-radius:0 0 14px 14px;padding:18px;grid-template-columns:repeat(3,1fr);gap:10px}.main-nav.open{display:grid}.header-actions{order:3}
.hero-grid,.split,.contact-grid{grid-template-columns:1fr}
.product-strip .container,.cards3,.band .container,.reason-grid,.products-grid,.product-family-grid,.feature-grid,.qr-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
.container{width:min(92vw,1280px)}
.site-header .inner{height:auto;min-height:84px;padding:12px 0;gap:10px}.brand img{width:52px;height:52px}.brand strong{font-size:16px}.brand span{font-size:13px;letter-spacing:2px}.header-actions .solid-btn{display:none}.lang-btn{padding:9px 10px}.main-nav{grid-template-columns:repeat(2,1fr);max-height:calc(100vh - 86px);overflow:auto}
.hero{min-height:780px;background-position:68% center}.hero .container{padding-top:110px}.hero-kicker{font-size:22px}.hero h1,.hero h1.en{font-size:40px}.hero .sub-line{font-size:24px}.hero .summary{font-size:17px}
.product-strip .container,.cards3,.band .container,.reason-grid,.products-grid,.product-family-grid,.feature-grid,.qr-grid{grid-template-columns:1fr}
.section-title{font-size:34px}.sub-hero h1{font-size:40px}.sub-hero p{font-size:18px}.footer-grid{flex-direction:column;align-items:flex-start}.footer-meta{text-align:left}
}


.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;margin-top:36px}
.case-card{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow)}
.case-card img{width:100%;height:320px;object-fit:cover}
.case-card .body{padding:26px}.case-card h3{font-size:28px}.case-card p{font-size:16px;color:var(--muted);margin-top:10px}
.news-list{display:grid;gap:18px;margin-top:34px}
.news-item{display:grid;grid-template-columns:120px 1fr;gap:22px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:var(--shadow)}
.news-item span{color:#9b6c2d;font-weight:800}.news-item h3{font-size:26px}.news-item p{color:var(--muted);margin-top:8px}
.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);margin-top:28px}
table{width:100%;border-collapse:collapse;min-width:820px}
th,td{padding:18px;border-bottom:1px solid #eadfcd;text-align:left;color:var(--ink)}
th{background:#fbf7ef;color:#8a6232}tr:last-child td{border-bottom:none}
@media(max-width:760px){.case-grid{grid-template-columns:1fr}.news-item{grid-template-columns:1fr}.case-card img{height:240px}}


.music-toggle{position:fixed;right:22px;bottom:22px;z-index:1200;display:inline-flex;align-items:center;gap:8px;background:rgba(8,6,5,.86);color:#f0d29a;border:1px solid rgba(210,166,92,.55);border-radius:999px;padding:12px 17px;box-shadow:0 12px 36px rgba(0,0,0,.28);cursor:pointer;font-weight:700}
.music-toggle.playing{background:#d2a65c;color:#171108}.music-icon{font-size:18px}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:34px}.process-grid article,.package-grid article,.spec-grid div{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:var(--shadow);color:var(--ink);transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}.process-grid article:hover,.package-grid article:hover,.spec-grid div:hover{transform:translateY(-5px);box-shadow:var(--shadow-strong);border-color:#d9bd88}.process-grid b{display:inline-flex;width:42px;height:42px;align-items:center;justify-content:center;border-radius:50%;background:#d2a65c;color:#171108;margin-bottom:14px}.process-grid h3,.package-grid h3,.spec-grid h3{font-size:22px}.process-grid p,.package-grid p,.spec-grid p{font-size:15px;color:var(--muted);margin-top:8px}
.mini-points{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:26px}.mini-points span{display:block;border:1px solid rgba(210,166,92,.28);border-radius:14px;padding:14px 16px;background:rgba(255,255,255,.04);color:#f0d29a;font-weight:700}
.dark-card{background:rgba(255,255,255,.05);border:1px solid rgba(210,166,92,.25);border-radius:20px;padding:30px}.dark-card h3{font-size:30px;margin-bottom:18px}.dark-card ul{padding-left:20px}.dark-card li{margin:12px 0;color:#eadbc1}
.spec-grid,.package-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:30px}.package-grid{grid-template-columns:repeat(3,1fr)}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:30px}.timeline div{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:var(--shadow);position:relative}.timeline b{display:block;color:#d2a65c;font:700 34px Georgia,serif;margin-bottom:10px}.timeline h3{font-size:22px}.timeline p{color:var(--muted);margin-top:8px}
@media(max-width:1200px){.process-grid,.spec-grid,.package-grid,.timeline{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.music-toggle{right:14px;bottom:14px;width:46px;height:46px;padding:0;justify-content:center}.music-toggle .only-zh,.music-toggle .only-en{display:none!important}.process-grid,.spec-grid,.package-grid,.timeline,.mini-points{grid-template-columns:1fr}}

.reveal-on-scroll{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}.reveal-on-scroll.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .reveal-on-scroll{opacity:1;transform:none}
}