:root{
  --navy:#1d2f6f; --navy-deep:#14214f; --gold:#c9a24a; --gold-soft:#e7d3a3;
  --ink:#222; --ink-2:#555; --ink-3:#8a8a8a; --line:#e6e1d8;
  --paper:#faf8f4; --white:#fff;
  --serif:"Songti SC","STSong","Noto Serif SC","Source Han Serif SC","SimSun",serif;
  --sans:-apple-system,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--ink);background:var(--white);line-height:1.8;font-size:15px;-webkit-font-smoothing:antialiased}
img{display:block;width:100%;height:100%;object-fit:cover}
a{color:inherit;text-decoration:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.en{font-family:Georgia,"Times New Roman",serif;letter-spacing:.18em;text-transform:uppercase;font-size:12px;color:var(--ink-3)}
h1,h2,h3{font-family:var(--serif);font-weight:600;letter-spacing:.06em}

/* 顶部导航 */
header{position:fixed;top:0;left:0;right:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(6px)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px}
.logo-mark{width:38px;height:38px;border-radius:50%;background:var(--navy);color:var(--gold-soft);display:grid;place-items:center;font-family:Georgia,serif;font-style:italic;font-size:16px}
.logo-text b{display:block;font-family:var(--serif);font-size:17px;color:var(--navy);letter-spacing:.12em;line-height:1.2}
.logo-text small{font-size:11px;color:var(--ink-3);letter-spacing:.2em}
.nav ul{display:flex;gap:28px;list-style:none;font-size:14px}
.nav ul a:hover{color:var(--navy)}
.nav-tel{font-size:14px;color:var(--navy);font-weight:600;white-space:nowrap}
@media(max-width:900px){.nav ul{display:none}}

/* 首屏 */
.hero{position:relative;height:100vh;min-height:560px;max-height:900px;margin-top:0;overflow:hidden;background:#111}
.hero .slide{position:absolute;inset:0;opacity:0;transition:opacity 1.2s}
.hero .slide.on{opacity:1}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.15) 0%,rgba(0,0,0,.05) 40%,rgba(0,0,0,.55) 100%)}
.hero-text{position:absolute;left:0;right:0;bottom:14%;z-index:2;text-align:center;color:#fff;padding:0 20px}
.hero-text .en{color:rgba(255,255,255,.8);font-size:13px}
.hero-text h1{font-size:clamp(28px,5vw,52px);margin:10px 0 8px;letter-spacing:.15em}
.hero-text p{font-size:clamp(14px,1.8vw,17px);opacity:.92;letter-spacing:.08em}
.dots{position:absolute;bottom:6%;left:50%;transform:translateX(-50%);z-index:2;display:flex;gap:10px}
.dots i{width:28px;height:2px;background:rgba(255,255,255,.4);cursor:pointer}
.dots i.on{background:var(--gold)}

/* 简介 */
.intro{display:grid;grid-template-columns:1fr 1fr;min-height:560px}
.intro-text{display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:72px 48px;background:var(--paper)}
.intro-text h2{font-size:30px;color:var(--navy);margin:14px 0 6px}
.intro-text .sub{color:var(--gold);letter-spacing:.3em;font-size:13px;margin-bottom:26px}
.intro-text p{color:var(--ink-2);max-width:420px;font-size:14px}
.stats{display:flex;gap:40px;margin-top:36px}
.stats div b{display:block;font-family:Georgia,serif;font-size:32px;color:var(--navy);font-weight:400}
.stats div span{font-size:12px;color:var(--ink-3);letter-spacing:.1em}
@media(max-width:800px){.intro{grid-template-columns:1fr}.intro-img{height:300px}.intro-text{padding:56px 24px}.stats{gap:24px}}

/* 通栏大图 */
.banner{position:relative;height:78vh;min-height:420px;max-height:760px;overflow:hidden}
.banner::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.5),rgba(0,0,0,0) 45%)}
.banner .cap{position:absolute;left:40px;bottom:36px;z-index:2;color:#fff;display:flex;align-items:flex-end;gap:18px;flex-wrap:wrap;padding-right:20px}
.banner .cap h3{font-family:Georgia,serif;font-size:clamp(24px,3.4vw,40px);letter-spacing:.08em;font-weight:400}
.banner .cap p{font-size:13px;opacity:.9;padding-bottom:6px}
@media(max-width:700px){.banner .cap{left:20px;bottom:22px}}

/* 图文左右 */
.split{display:grid;grid-template-columns:1.25fr 1fr;align-items:center;gap:0;padding:90px 0}
.split.rev{grid-template-columns:1fr 1.25fr}
.split.rev .split-img{order:2}
.split-img{height:520px}
.split-text{padding:0 64px}
.split-text h3{font-family:Georgia,serif;font-size:30px;letter-spacing:.08em;font-weight:400;margin-bottom:6px}
.split-text .cn{font-family:var(--serif);font-size:20px;color:var(--navy);margin-bottom:18px}
.split-text p{color:var(--ink-2);font-size:14px}
.split-text ul{list-style:none;margin-top:18px}
.split-text li{padding:8px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink-2)}
.split-text li::before{content:"—";color:var(--gold);margin-right:10px}
@media(max-width:800px){.split,.split.rev{grid-template-columns:1fr;padding:48px 0}.split.rev .split-img{order:0}.split-img{height:300px}.split-text{padding:32px 24px 0}}

/* 产品分类 */
.cats{display:grid;grid-template-columns:1fr 1.4fr;gap:0;background:var(--paper)}
.cats-list{padding:72px 56px}
.cats-list h2{font-size:26px;color:var(--navy)}
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px 12px;margin-top:40px}
.cat-grid div{text-align:center;font-size:13px;color:var(--ink-2)}
.cat-grid svg{width:34px;height:34px;margin:0 auto 8px;stroke:var(--navy);stroke-width:1.2;fill:none}
.cats-img{min-height:460px}
@media(max-width:800px){.cats{grid-template-columns:1fr}.cats-list{padding:56px 24px}.cats-img{min-height:280px}}

/* 空间三联 */
.rooms{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;margin-top:4px}
.room{position:relative;height:520px;overflow:hidden}
.room img{transition:transform .8s}
.room:hover img{transform:scale(1.04)}
.room::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.55),rgba(0,0,0,0) 50%)}
.room .t{position:absolute;bottom:28px;left:0;right:0;text-align:center;color:#fff;z-index:2}
.room .t b{display:block;font-family:Georgia,serif;font-weight:400;font-size:20px;letter-spacing:.15em}
.room .t span{font-size:13px;opacity:.9}
@media(max-width:800px){.rooms{grid-template-columns:1fr}.room{height:300px}}

/* 优势 */
.why{padding:100px 0;text-align:center}
.why h2{font-size:28px;color:var(--navy);margin:10px 0 50px}
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.why-grid div{padding:34px 22px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);text-align:left}
.why-grid b{display:block;font-family:var(--serif);font-size:17px;color:var(--ink);margin-bottom:6px}
.why-grid b em{font-style:normal;color:var(--gold);font-family:Georgia,serif;margin-right:8px}
.why-grid p{font-size:13px;color:var(--ink-2);line-height:1.7}
@media(max-width:900px){.why-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.why-grid{grid-template-columns:1fr}.why{padding:64px 0}}

/* 以旧换新 */
.tradein{background:var(--navy);color:#fff}
.tradein .wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding-top:80px;padding-bottom:80px}
.tradein .en{color:var(--gold-soft)}
.tradein h2{font-size:30px;margin:10px 0 18px}
.tradein p{opacity:.85;font-size:14px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:30px}
.steps div{border:1px solid rgba(255,255,255,.25);padding:16px 10px;text-align:center;font-size:13px}
.steps b{display:block;color:var(--gold);font-family:Georgia,serif;font-size:20px;font-weight:400}
.tradein-img{height:380px;border:1px solid rgba(255,255,255,.15)}
@media(max-width:800px){.tradein .wrap{grid-template-columns:1fr;padding-top:56px;padding-bottom:56px}.tradein-img{height:260px}.steps{grid-template-columns:1fr 1fr}}

/* 常见问题 */
.faq{padding:100px 0;background:var(--paper)}
.faq h2{font-size:28px;color:var(--navy);text-align:center;margin:10px 0 40px}
.faq .en{text-align:center}
.faq-list{max-width:820px;margin:0 auto}
.faq details{border-bottom:1px solid var(--line);padding:18px 4px}
.faq summary{cursor:pointer;font-family:var(--serif);font-size:16px;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::after{content:"+";color:var(--gold);font-size:20px;line-height:1}
.faq details[open] summary::after{content:"−"}
.faq details p{margin-top:10px;color:var(--ink-2);font-size:14px}

/* 到店 */
.visit{position:relative;min-height:640px;color:#fff;display:flex;align-items:center;overflow:hidden}
.visit .bg{position:absolute;inset:0}
.visit .bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,16,40,.88) 0%,rgba(10,16,40,.6) 55%,rgba(10,16,40,.2) 100%)}
.visit .wrap{position:relative;z-index:2;width:100%;padding-top:80px;padding-bottom:80px}
.visit h2{font-family:Georgia,serif;font-weight:400;font-size:clamp(24px,3vw,34px);letter-spacing:.1em}
.visit .cn{font-family:var(--serif);font-size:20px;margin:6px 0 30px;color:var(--gold-soft)}
.info{display:grid;grid-template-columns:auto 1fr;gap:12px 22px;font-size:15px;max-width:560px}
.info dt{color:rgba(255,255,255,.6)}
.btns{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 30px;border:1px solid var(--gold);font-size:14px;letter-spacing:.1em}
.btn.solid{background:var(--gold);color:var(--navy-deep);font-weight:600}
.visit-photos{display:flex;gap:10px;margin-top:40px}
.visit-photos img{width:150px;height:110px;border:1px solid rgba(255,255,255,.25)}
@media(max-width:600px){.visit-photos img{width:31%;height:80px}}

/* 英文简介 */
.english{padding:64px 0;border-bottom:1px solid var(--line)}
.english h2{font-family:Georgia,serif;font-weight:400;font-size:22px;letter-spacing:.06em;color:var(--navy);margin-bottom:12px}
.english p{color:var(--ink-2);font-size:14px;max-width:900px;font-family:Georgia,serif;line-height:1.9}

/* 页脚 */
footer{background:var(--navy-deep);color:rgba(255,255,255,.7);font-size:13px;padding:50px 0 90px}
footer .wrap{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
footer b{color:#fff;font-family:var(--serif);font-size:16px;letter-spacing:.1em;display:block;margin-bottom:8px}

/* 手机底部按钮 */
.mbar{display:none}
@media(max-width:800px){
  .mbar{display:grid;grid-template-columns:1fr 1fr;position:fixed;left:0;right:0;bottom:0;z-index:60;box-shadow:0 -2px 10px rgba(0,0,0,.12)}
  .mbar a{text-align:center;padding:15px 0;font-size:15px;font-weight:600;letter-spacing:.1em}
  .mbar a:first-child{background:var(--gold);color:var(--navy-deep)}
  .mbar a:last-child{background:var(--navy);color:#fff}
  .nav-tel{display:none}
}

/* ===== 子页面公共 ===== */
.more{display:inline-block;margin-top:28px;font-size:13px;letter-spacing:.15em;color:var(--navy);border-bottom:1px solid var(--gold);padding-bottom:2px}
.page-head{position:relative;height:46vh;min-height:300px;max-height:460px;overflow:hidden;margin-top:64px}
.page-head::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(10,16,40,.7),rgba(10,16,40,.15))}
.page-head .t{position:absolute;left:0;right:0;bottom:40px;z-index:2;text-align:center;color:#fff;padding:0 20px}
.page-head .t .en{color:rgba(255,255,255,.8)}
.page-head h1{font-size:clamp(26px,4vw,40px);margin-top:8px;letter-spacing:.15em}
.crumb{font-size:12px;color:var(--ink-3);padding:18px 0;border-bottom:1px solid var(--line)}
.crumb a:hover{color:var(--navy)}
.section{padding:72px 0}
.section.alt{background:var(--paper)}
.sec-title{text-align:center;margin-bottom:40px}
.sec-title h2{font-size:26px;color:var(--navy);margin-top:8px}
.sec-title p{color:var(--ink-2);font-size:14px;margin-top:10px}
.prose{max-width:820px;margin:0 auto;color:var(--ink-2);font-size:15px}
.prose p{margin-bottom:16px}
.prose h3{font-size:19px;color:var(--ink);margin:30px 0 12px}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.gallery figure{position:relative;height:280px;overflow:hidden}
.gallery figure.wide{grid-column:span 2}
.gallery figure.full{grid-column:1/-1;height:460px}
.gallery figcaption{position:absolute;left:0;right:0;bottom:0;padding:24px 14px 10px;background:linear-gradient(0deg,rgba(0,0,0,.6),rgba(0,0,0,0));color:#fff;font-size:13px}
@media(max-width:800px){.gallery{grid-template-columns:1fr 1fr}.gallery figure{height:180px}}
@media(max-width:520px){.gallery{grid-template-columns:1fr}.gallery figure.wide,.gallery figure.full{grid-column:auto;height:240px}.gallery figure{height:240px}}
.svc{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.svc div{padding:36px 30px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.svc b{display:block;font-family:var(--serif);font-size:19px;margin-bottom:10px;color:var(--navy)}
.svc p{font-size:14px;color:var(--ink-2)}
@media(max-width:700px){.svc{grid-template-columns:1fr}}
.kv{display:grid;grid-template-columns:120px 1fr;max-width:820px;margin:0 auto;border-top:1px solid var(--line)}
.kv dt,.kv dd{padding:16px 6px;border-bottom:1px solid var(--line);font-size:15px}
.kv dt{color:var(--ink-3)}
@media(max-width:520px){.kv{grid-template-columns:90px 1fr}}
.center{text-align:center}
footer nav{display:flex;flex-wrap:wrap;gap:6px 18px;margin-top:10px}
footer nav a:hover{color:#fff}

/* ===== 手机适配补丁 ===== */
.menu-btn{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer;padding:10px;margin-right:-10px}
.menu-btn span{display:block;height:2px;background:var(--navy);margin:5px 0;transition:.3s}
.steps.steps5{grid-template-columns:repeat(5,1fr)}
.steps.light div{border-color:var(--line)}
.cat-grid svg{display:block}
@media(max-width:900px){
  .menu-btn{display:block}
  .nav ul{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;gap:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 8px 20px rgba(0,0,0,.08)}
  .nav ul li a{display:block;padding:15px 24px;border-top:1px solid var(--line);font-size:15px}
  header.open .nav ul{display:flex}
  header.open .menu-btn span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  header.open .menu-btn span:nth-child(2){opacity:0}
  header.open .menu-btn span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
}
@media(max-width:600px){
  body{font-size:14px}
  .wrap{padding:0 16px}
  .logo-mark{width:34px;height:34px;font-size:14px}
  .logo-text b{font-size:16px}
  .hero{height:78vh;min-height:480px}
  .hero-text h1{letter-spacing:.1em}
  .intro-text h2,.why h2,.faq h2,.tradein h2{font-size:23px}
  .stats{gap:18px}
  .stats div b{font-size:26px}
  .banner{height:56vh;min-height:320px}
  .banner .cap{gap:4px}
  .banner .cap p{font-size:12px;padding-bottom:0}
  .split-text{padding:26px 16px 0}
  .split-text h3{font-size:24px}
  .cats-list{padding:48px 16px}
  .cat-grid{gap:22px 4px;margin-top:28px}
  .cat-grid div{font-size:12px;white-space:nowrap}
  .cat-grid svg{width:30px;height:30px}
  .room{height:240px}
  .why-grid{grid-template-columns:1fr 1fr}
  .why-grid div{padding:20px 14px}
  .why-grid b{font-size:15px}
  .why-grid b em{display:block;margin-bottom:2px}
  .why-grid p{font-size:12.5px}
  .faq{padding:60px 0}
  .faq summary{font-size:15px}
  .visit{min-height:0}
  .visit .wrap{padding-top:56px;padding-bottom:56px}
  .info{grid-template-columns:auto 1fr;gap:10px 16px;font-size:14px}
  .btns .btn{flex:1;text-align:center;padding:13px 10px}
  .english{padding:44px 0}
  footer{padding:36px 0 84px}
  footer .wrap{flex-direction:column;gap:18px}
  .page-head{height:30vh;min-height:220px}
  .page-head .t{bottom:26px}
  .section{padding:48px 0}
  .sec-title{margin-bottom:26px}
  .sec-title h2{font-size:22px}
  .steps.steps5{grid-template-columns:repeat(2,1fr)}
  .svc div{padding:24px 18px}
  .kv dt,.kv dd{padding:13px 4px;font-size:14px}
  .center .btn{display:block;margin:0 0 12px !important}
  .gallery figure.full{height:240px}
  .hero-text .en{font-size:10.5px;letter-spacing:.08em}
  .steps.steps5 div:last-child{grid-column:1/-1}
}