:root{--bg:#0b0a09;--panel:#151210;--panel2:#1d1814;--line:rgba(231,197,126,.18);--gold:#d5ad63;--gold2:#f1d79d;--text:#f7f0e5;--muted:#a99f91;--brown:#5c1b2c;--white:#fff}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.75}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(1180px,92vw);margin:auto}.topbar{background:#100d0b;border-bottom:1px solid var(--line);font-size:13px;color:#d8c7a6;display:flex;justify-content:space-between;gap:20px;padding:8px min(4vw,42px)}.site-header{position:sticky;top:0;z-index:50;background:rgba(11,10,9,.82);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.header-inner{height:76px;display:flex;align-items:center;justify-content:space-between;width:min(1180px,92vw);margin:auto}.brand{display:flex;align-items:center;gap:12px}.brand img{width:190px;max-height:46px;object-fit:contain;filter:brightness(1.2)}.brand span{display:none}.brand b{font-size:22px;letter-spacing:.22em;color:var(--gold)}.brand small{display:block;font-size:10px;color:var(--muted);letter-spacing:.28em}.nav{display:flex;align-items:center;gap:4px}.nav a{padding:10px 14px;font-size:15px;color:#e7dac7}.nav a:hover,.nav a.active{color:var(--gold2)}.nav-cta{border:1px solid var(--gold);border-radius:999px;color:var(--gold2)!important}.menu-btn{display:none;background:none;border:0;gap:5px;flex-direction:column}.menu-btn span{width:24px;height:2px;background:var(--gold);display:block}.hero{min-height:760px;position:relative;display:grid;align-items:end;overflow:hidden}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,5,4,.86),rgba(7,5,4,.48),rgba(7,5,4,.18)),linear-gradient(0deg,var(--bg),rgba(0,0,0,0) 40%);z-index:1}.hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.hero-content{position:relative;z-index:2;padding:150px 0 90px}.eyebrow{color:var(--gold2);letter-spacing:.22em;text-transform:uppercase;font-size:13px;margin-bottom:18px}.hero h1{font-size:clamp(38px,6.5vw,84px);line-height:1.08;margin:0 0 24px;letter-spacing:.02em}.hero p{font-size:clamp(17px,2vw,23px);color:#f2e5cf;max-width:760px;margin:0 0 34px}.btns{display:flex;gap:16px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;gap:10px;padding:13px 24px;border-radius:999px;border:1px solid var(--gold);background:linear-gradient(135deg,#d5ad63,#8f6b32);color:#120d08;font-weight:700}.btn.secondary{background:rgba(255,255,255,.05);color:var(--gold2)}.stat-row{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#100d0b}.stat{padding:30px;text-align:center;border-right:1px solid var(--line)}.stat:last-child{border-right:0}.stat b{display:block;color:var(--gold2);font-size:32px;line-height:1.2}.stat span{color:var(--muted);font-size:14px}.section{padding:92px 0}.section.alt{background:#100d0c}.section-head{display:flex;justify-content:space-between;align-items:end;gap:32px;margin-bottom:38px}.section-head h2{font-size:clamp(28px,4vw,48px);line-height:1.15;margin:0}.section-head p{max-width:560px;color:var(--muted);margin:0}.grid{display:grid;gap:22px}.grid.products{grid-template-columns:repeat(3,1fr)}.product-card,.case-card,.article-card,.value-card{background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.01));border:1px solid var(--line);border-radius:22px;overflow:hidden;position:relative}.product-card img,.case-card img{width:100%;height:260px;object-fit:cover}.product-card .body,.case-card .body,.article-card,.value-card{padding:24px}.product-card h3,.case-card h3,.article-card h3,.value-card h3{margin:0 0 8px;font-size:22px}.tag{display:inline-flex;padding:4px 10px;border:1px solid var(--line);border-radius:999px;color:var(--gold2);font-size:12px;margin-bottom:12px}.muted{color:var(--muted)}.split{display:grid;grid-template-columns:1.02fr .98fr;gap:42px;align-items:center}.image-stack{display:grid;grid-template-columns:1fr 1fr;gap:14px}.image-stack img{height:220px;width:100%;object-fit:cover;border-radius:18px;border:1px solid var(--line)}.image-stack img:first-child{grid-column:span 2;height:360px}.values{grid-template-columns:repeat(4,1fr)}.value-card b{font-size:34px;color:var(--gold2)}.cases-filter{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:28px}.filter-btn{background:#17120f;border:1px solid var(--line);color:#e7dac7;border-radius:999px;padding:10px 16px;cursor:pointer}.filter-btn.active{background:var(--gold);color:#1a1208}.cases-grid{grid-template-columns:repeat(3,1fr)}.case-card{cursor:pointer}.case-card .meta{display:flex;justify-content:space-between;gap:8px;color:var(--muted);font-size:13px}.factory-gallery{grid-template-columns:repeat(4,1fr)}.factory-gallery img{height:190px;width:100%;object-fit:cover;border-radius:18px;border:1px solid var(--line)}.process{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:step}.process li{list-style:none;background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:22px;position:relative}.process li:before{counter-increment:step;content:"0" counter(step);display:block;color:var(--gold2);font-weight:700;margin-bottom:12px}.faq{display:grid;grid-template-columns:1fr 1fr;gap:18px}.faq details{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:20px}.faq summary{cursor:pointer;font-weight:700;color:#fff}.cta{background:linear-gradient(135deg,rgba(92,27,44,.85),rgba(25,18,12,.95)),url('../img/brand/hero-cellar.jpg') center/cover;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.cta-box{padding:64px;border:1px solid var(--line);border-radius:28px;background:rgba(0,0,0,.28);backdrop-filter:blur(8px)}.page-hero{padding:100px 0 60px;background:radial-gradient(circle at 70% 10%,rgba(213,173,99,.18),transparent 42%),linear-gradient(180deg,#15100d,#0b0a09);border-bottom:1px solid var(--line)}.page-hero h1{font-size:clamp(34px,5vw,62px);line-height:1.1;margin:0 0 16px}.breadcrumbs{color:var(--muted);font-size:14px;margin-bottom:18px}.product-list{display:grid;gap:28px}.product-row{display:grid;grid-template-columns:420px 1fr;gap:32px;background:var(--panel);border:1px solid var(--line);border-radius:24px;overflow:hidden}.product-row img{height:100%;min-height:330px;width:100%;object-fit:cover}.product-row .info{padding:34px}.specs{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:20px}.specs span{background:#100d0b;border:1px solid var(--line);padding:10px 12px;border-radius:12px;color:#d9cdbb}.case-detail{display:none}.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.86);z-index:100;display:none;align-items:center;justify-content:center;padding:30px}.lightbox.open{display:flex}.lightbox-inner{width:min(1100px,94vw);background:#110e0c;border:1px solid var(--line);border-radius:24px;overflow:hidden}.lightbox-top{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line)}.lightbox-close{background:none;border:0;color:var(--gold2);font-size:28px;cursor:pointer}.lightbox-main{display:grid;grid-template-columns:1.4fr .6fr}.lightbox-main img{width:100%;height:620px;object-fit:contain;background:#050403}.lightbox-info{padding:24px}.thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:20px}.thumbs img{height:74px;object-fit:cover;border-radius:10px;border:1px solid var(--line);cursor:pointer}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}.contact-card{background:var(--panel);border:1px solid var(--line);border-radius:24px;padding:30px}.form input,.form textarea,.form select{width:100%;padding:14px 16px;border-radius:12px;border:1px solid var(--line);background:#0d0a09;color:#fff;margin-bottom:14px}.form button{width:100%;cursor:pointer}.footer{background:#070605;border-top:1px solid var(--line);padding-top:58px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}.footer h4{color:var(--gold2);margin:0 0 12px}.footer a{display:block;color:#d4c7b6;margin:6px 0}.footer-logo{color:var(--gold2);font-size:24px;font-weight:700;letter-spacing:.08em}.copyright{text-align:center;color:#81776b;border-top:1px solid var(--line);padding:22px;margin-top:40px;font-size:13px}.float-actions{position:fixed;right:18px;bottom:20px;z-index:60;display:flex;flex-direction:column;gap:10px}.float-actions a{background:linear-gradient(135deg,#d5ad63,#9c7839);color:#140e08;padding:12px 16px;border-radius:999px;font-weight:700;box-shadow:0 8px 24px rgba(0,0,0,.35)}.pill-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.pill-list span{border:1px solid var(--line);color:#e6d7be;border-radius:999px;padding:7px 12px}.article-grid{grid-template-columns:repeat(2,1fr)}.article-card .date{color:var(--gold2);font-size:13px}.lang-note{font-size:13px;color:var(--muted);border-left:3px solid var(--gold);padding-left:12px}.mobile-only{display:none}
@media(max-width:960px){.topbar{display:none}.menu-btn{display:flex}.header-inner{height:64px}.brand img{width:150px}.nav{position:absolute;top:64px;left:0;right:0;background:#0b0a09;border-bottom:1px solid var(--line);display:none;flex-direction:column;padding:18px}.nav.open{display:flex}.nav a{width:100%;text-align:center}.hero{min-height:660px}.stat-row{grid-template-columns:repeat(2,1fr)}.stat:nth-child(2){border-right:0}.section{padding:66px 0}.section-head{display:block}.grid.products,.cases-grid,.factory-gallery,.values{grid-template-columns:1fr 1fr}.split,.product-row,.contact-grid,.lightbox-main{grid-template-columns:1fr}.product-row img{min-height:260px}.process{grid-template-columns:1fr 1fr}.faq{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.lightbox-main img{height:420px}}
@media(max-width:620px){.grid.products,.cases-grid,.factory-gallery,.values,.process,.article-grid,.footer-grid{grid-template-columns:1fr}.hero-content{padding:110px 0 70px}.stat-row{grid-template-columns:1fr}.stat{border-right:0;border-bottom:1px solid var(--line)}.cta-box{padding:32px}.image-stack{display:block}.image-stack img,.image-stack img:first-child{height:auto;margin-bottom:12px}.float-actions{left:14px;right:14px;flex-direction:row}.float-actions a{flex:1;text-align:center}.specs{grid-template-columns:1fr}.lightbox-main img{height:320px}}

.video-showcase{display:grid;grid-template-columns:0.85fr 1.15fr;gap:34px;align-items:center;background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.015));border:1px solid var(--line);border-radius:28px;padding:28px;overflow:hidden}
.video-box{position:relative;border-radius:24px;overflow:hidden;border:1px solid var(--line);background:#050403;box-shadow:0 24px 70px rgba(0,0,0,.35)}
.video-box video{width:100%;display:block;max-height:620px;object-fit:cover;background:#000}
.video-badge{display:inline-flex;border:1px solid var(--gold);color:var(--gold2);border-radius:999px;padding:6px 12px;font-size:13px;margin-bottom:12px}.video-list{display:grid;gap:12px;margin:22px 0}.video-list span{display:block;background:#100d0b;border:1px solid var(--line);border-radius:14px;padding:12px 14px;color:#e9dcc8}.video-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}.video-actions a{display:inline-flex;align-items:center;justify-content:center;padding:11px 16px;border-radius:999px;border:1px solid var(--gold);color:var(--gold2)}
@media(max-width:960px){.video-showcase{grid-template-columns:1fr}.video-box video{max-height:none}}

.case-card{display:block;color:inherit;text-decoration:none}
.case-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.case-gallery a{display:block;background:#080706;border:1px solid var(--line);border-radius:18px;overflow:hidden}
.case-gallery img{width:100%;height:310px;object-fit:contain;background:#050403}
.case-info-panel{background:var(--panel);border:1px solid var(--line);border-radius:24px;padding:28px;margin-bottom:28px}
.case-info-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px}
.case-info-grid span{background:#100d0b;border:1px solid var(--line);padding:12px;border-radius:14px;color:#d9cdbb}
.next-cases{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.next-cases a{border:1px solid var(--gold);border-radius:999px;padding:9px 14px;color:var(--gold2)}
@media(max-width:960px){.case-gallery{grid-template-columns:1fr 1fr}.case-info-grid{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.case-gallery{grid-template-columns:1fr}.case-info-grid{grid-template-columns:1fr}.case-gallery img{height:auto}}


/* 首页真实案例大图轮播：使用早期实拍素材，替换AI生成首图 */
.hero-carousel{background:#050403;align-items:end}
.hero-slides{position:absolute;inset:0;z-index:0;overflow:hidden}
.hero-slide{position:absolute;inset:0;opacity:0;transform:scale(1.02);transition:opacity 1.1s ease, transform 5.8s ease}
.hero-slide.active{opacity:1;transform:scale(1)}
.hero-slide img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-dots{position:absolute;z-index:3;left:50%;bottom:28px;transform:translateX(-50%);display:flex;gap:10px}
.hero-dots button{width:34px;height:4px;border:0;border-radius:999px;background:rgba(255,255,255,.34);cursor:pointer;padding:0}
.hero-dots button.active{background:var(--gold2);width:48px}
@media(max-width:620px){.hero-dots{bottom:16px}.hero-dots button{width:24px}.hero-dots button.active{width:36px}}


/* 联系方式与业务微信二维码 */
.contact-people{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:22px}
.person-card{background:#100d0b;border:1px solid var(--line);border-radius:18px;padding:18px}
.person-card h3{margin:0 0 6px;color:var(--gold2);font-size:20px}
.person-card p{margin:4px 0;color:#d9cdbb}
.qr-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:22px}
.qr-card{background:#fff;color:#18110b;border-radius:18px;padding:14px;border:1px solid rgba(213,173,99,.35)}
.qr-card img{width:100%;border-radius:12px;background:#fff;object-fit:contain}
.qr-card b{display:block;color:#2a1a12;margin:10px 0 4px;font-size:16px}.qr-card span{display:block;color:#65564a;font-size:13px;line-height:1.55}
.footer-contact-qr{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}.footer-contact-qr img{background:#fff;border-radius:12px;padding:6px;width:100%;height:120px;object-fit:contain}.footer-contact-qr span{display:block;color:#b9ad9e;font-size:12px;text-align:center;margin-top:4px}.contact-note{margin-top:16px;border-left:3px solid var(--gold);padding-left:12px;color:var(--muted);font-size:14px}
@media(max-width:620px){.contact-people,.qr-grid{grid-template-columns:1fr}.footer-contact-qr{grid-template-columns:1fr 1fr}.footer-contact-qr img{height:150px}.float-actions{font-size:13px}}


.rounded-img{width:100%;border-radius:22px;border:1px solid var(--line);object-fit:cover;max-height:520px}
.advantage-grid .value-card{min-height:230px}
.city-cloud{display:flex;flex-wrap:wrap;gap:12px}.city-cloud span{border:1px solid var(--line);background:var(--panel);border-radius:999px;padding:10px 16px;color:#e7dac7}
.city-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.city-card h3{font-size:20px}
.clean-copy p{font-size:17px}.case-info-panel.clean-copy{background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.01));border:1px solid var(--line);border-radius:22px;padding:34px}
.case-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.case-gallery img{width:100%;height:330px;object-fit:cover;border-radius:18px;border:1px solid var(--line);background:#080706}
.case-gallery a:first-child{grid-column:span 2}.case-gallery a:first-child img{height:460px}
.next-cases{display:flex;justify-content:space-between;gap:18px;margin-top:28px}.next-cases a{border:1px solid var(--line);border-radius:999px;padding:12px 18px;color:var(--gold2)}
.footer-contact-qr{display:flex;gap:12px;margin-top:10px}.footer-contact-qr img{width:86px;height:86px;object-fit:contain;background:#fff;border-radius:8px}.footer-contact-qr span{display:block;font-size:12px;color:var(--muted);text-align:center;margin-top:4px}
.qr-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:18px}.qr-grid img{width:100%;max-width:220px;margin:auto;background:#fff;border-radius:12px;padding:8px}.qr-grid span{text-align:center;display:block;margin-top:8px;color:var(--gold2)}
@media(max-width:960px){.city-grid{grid-template-columns:1fr 1fr}.case-gallery{grid-template-columns:1fr}.case-gallery a:first-child{grid-column:auto}.case-gallery a:first-child img,.case-gallery img{height:auto}.next-cases{flex-direction:column}.qr-grid{grid-template-columns:1fr}}


.vr-tip{margin-top:16px;padding:14px 16px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.035)}