*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;background:#fff;color:var(--ink);
    font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
    line-height:1.45
}
img{display:block;width:100%}
a{text-decoration:none;color:inherit}
button,input,textarea,select{font:inherit}
.container{width:min(1180px,92vw);margin-inline:auto}
.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:11px;color:var(--gold);font-weight:700;margin-bottom:10px}
.section{padding:72px 0}
.section-title{margin:0 0 26px;font:500 clamp(28px,3vw,46px)/1.05 Georgia,"Times New Roman",serif}
.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:32px}
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:10px;
    min-height:46px;padding:0 20px;border:1px solid transparent;
    background:var(--gold);color:#fff;font-weight:700;font-size:13px;
    transition:.25s ease;cursor:pointer
}
.btn:hover{transform:translateY(-2px);filter:brightness(.97)}
.btn-outline{background:transparent;border-color:#d8c7ad;color:var(--ink)}

.topbar{height:28px;background:#0c0c0b;color:#d9d5ce;font-size:11px;display:flex;align-items:center}
.topbar .container{display:flex;justify-content:space-between;gap:20px}

.navbar{
    height:74px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);
    position:sticky;top:0;z-index:40;backdrop-filter:blur(12px)
}
.navbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;flex-direction:column;line-height:1}
.brand b{font:500 27px Georgia,serif;color:#8e6b3f}
.brand small{font:500 11px Georgia,serif;margin-top:4px}
.nav{display:flex;align-items:center;gap:30px;font-size:13px}
.nav a{position:relative;padding:28px 0}
.nav a:after{content:"";position:absolute;left:0;bottom:20px;height:1px;width:0;background:var(--gold);transition:.2s}
.nav a:hover:after{width:100%}
.mobile-toggle{display:none;border:0;background:none;font-size:24px}

/* =========================
   HOME HERO BANNER
========================= */

/* =========================
   Hero Banner
   PC端：1920 × 600
========================= */

/* 描述 */
.hero{
    min-height:610px;position:relative;display:flex;align-items:center;color:#fff;
    background:
      linear-gradient(90deg,rgba(12,11,9,.78) 0%,rgba(12,11,9,.55) 33%,rgba(12,11,9,.08) 70%),
      url("https://images.unsplash.com/photo-1600607687920-4e2a09cf159d?auto=format&fit=crop&w=2200&q=90") center/cover no-repeat;
}
.hero-copy{position:relative;z-index:2;max-width:590px}
.hero h1{font:500 clamp(48px,6vw,82px)/.96 Georgia,"Times New Roman",serif;margin:0 0 24px;letter-spacing:-.035em}
.hero p{max-width:520px;color:#e7e3dc;font-size:15px;margin:0 0 26px}
.hero-actions{display:flex;align-items:center;gap:28px}
.play{display:flex;align-items:center;gap:10px;font-weight:700;font-size:13px}
.play i{width:34px;height:34px;border:1px solid rgba(255,255,255,.65);border-radius:50%;display:grid;place-items:center;font-style:normal}

.service-layout{display:grid;grid-template-columns:1fr 2.1fr;gap:70px;align-items:start}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px 34px}
.service-item{display:grid;grid-template-columns:44px 1fr;gap:14px}
.service-icon{width:42px;height:42px;border:1px solid #d6bd96;color:var(--gold);display:grid;place-items:center;font-size:19px}
.service-item h3{font:600 14px Georgia,serif;margin:0 0 7px}
.service-item p{margin:0;color:var(--muted);font-size:12px;line-height:1.6}
/**/

.filters{display:flex;gap:10px;flex-wrap:wrap}
.select1{height:38px;padding:0 14px;border:1px solid var(--line);background:#fff;color:#58534d;font-size:12px}
.project-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{border:1px solid var(--line);background:#fff;transition:.25s;overflow:hidden}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.card-img{aspect-ratio:1.06/1;overflow:hidden}
.card-img img{height:100%;object-fit:cover;transition:.5s}
.card:hover .card-img img{transform:scale(1.04)}
.card-body{padding:16px 16px 18px}
.card h3{font:600 15px Georgia,serif;margin:0 0 6px}
.card p{font-size:11px;color:var(--muted);margin:0}

.feature{background:var(--paper-2)}
.feature-grid{display:grid;grid-template-columns:1.55fr .7fr .65fr;gap:28px;align-items:stretch}
.feature-main .big{aspect-ratio:1.6/1;object-fit:cover}
.thumb-row{display:grid;grid-template-columns:repeat(5,1fr);gap:5px;margin-top:5px}
.thumb-row img{aspect-ratio:1.6/1;object-fit:cover}
.specs{display:flex;flex-direction:column;justify-content:center;gap:20px}
.spec{display:grid;grid-template-columns:34px 1fr;gap:10px}
.spec i{font-style:normal;color:var(--gold);font-size:20px}
.spec small{display:block;color:var(--muted);font-size:10px}
.spec strong{font:600 13px Georgia,serif}
.quote{border:1px solid #dccdb7;padding:28px;display:flex;flex-direction:column;justify-content:space-between;background:#fff}
.quote .mark{font:700 40px Georgia,serif;color:var(--gold)}
.quote p{font:500 15px/1.7 Georgia,serif;color:#4c4640}
.avatar{display:flex;gap:10px;align-items:center;font-size:11px}
.avatar img{width:34px;height:34px;border-radius:50%;object-fit:cover}

.process-wrap{display:grid;grid-template-columns:repeat(6,1fr);gap:20px;position:relative}
.process-wrap:before{content:"";position:absolute;left:6%;right:6%;top:26px;height:1px;background:#ded6cb}
.step{position:relative;z-index:1}
.step-icon{width:54px;height:54px;border-radius:50%;background:#f8f4ee;border:1px solid #e1d7c8;display:grid;place-items:center;color:var(--gold);font-size:20px;margin-bottom:14px}
.step b{display:block;color:var(--gold);font:600 18px Georgia,serif}
.step h3{font:600 13px Georgia,serif;margin:2px 0 8px}
.step p{font-size:11px;color:var(--muted);margin:0;line-height:1.55}

.material-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.material-card{border:1px solid var(--line);background:#fff}
.material-card img{aspect-ratio:1.35/1;object-fit:cover}
.material-card div{padding:14px}
.material-card h3{font:600 13px Georgia,serif;margin:0 0 5px}
.material-card p{font-size:11px;color:var(--muted);margin:0}


.stats{display:grid;grid-template-columns:1.5fr repeat(5,.7fr);align-items:center;gap:18px}
.stat{text-align:center}
.stat b{font:500 32px Georgia,serif}
.stat span{display:block;color:var(--muted);font-size:11px;margin-top:3px}
.logos{display:grid;grid-template-columns:repeat(6,1fr);gap:20px;align-items:center;color:#8b8780;font-weight:700;font-size:18px;text-align:center;margin-top:34px}

.cta{background:#171714;color:#f2eee8;padding:52px 0 32px}
.cta-grid{display:grid;grid-template-columns:.75fr 1.4fr;gap:56px}
.cta-copy{min-height:300px;padding:24px 28px 20px 0;border-right:1px solid rgba(216,189,145,.5)}
.cta h2{font:500 36px Georgia,serif;margin:0 0 13px;color:#c6a16b}
.cta-copy p{color:#bdb8b0;font-size:13px;max-width:360px}
.checks{margin-top:28px;display:grid;gap:9px;color:#d6d0c7;font-size:12px}
.form-title{font:500 20px Georgia,serif;color:#c6a16b;margin-bottom:16px}
.quote-form{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.field{width:100%;border:1px solid #403c36;background:#171714;color:#fff;min-height:44px;padding:0 12px;outline:none}
textarea.field{min-height:100px;padding:12px;resize:vertical}
.span-2{grid-column:span 2}.span-3{grid-column:span 3}

/*材料*/
.materials-section{
    padding: 100px 0;
    background: #f8f6f2;
}

.materials-section .container{
    width: 92%;
    max-width: 1400px;
    margin: 0 auto;
}

.materials-head{
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 30px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.materials-head-left{
    max-width: 760px;
}

.materials-section .eyebrow{
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: #9b7b52;
    margin-bottom: 12px;
}

.materials-section .section-title{
    font-size: 42px;
    line-height: 1.2;
    color: #222;
    margin: 0 0 16px;
}

.materials-section .section-desc{
    font-size: 16px;
    line-height: 1.8;
    color: #666;
    margin: 0;
}

.btn.btn-outline{
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 26px;
    border: 1px solid #c8b28d;
    color: #7b5d38;
    text-decoration: none;
    border-radius: 999px;
    background: transparent;
    transition: all .3s ease;
}

.btn.btn-outline:hover{
    background: #7b5d38;
    color: #fff;
}

.materials-highlight{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.highlight-item{
    background: #fff;
    border-radius: 18px;
    padding: 24px 24px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.05);
}

.highlight-item span{
    display: block;
    font-size: 18px;
    font-weight: 700;
    color: #222;
    margin-bottom: 8px;
}

.highlight-item p{
    font-size: 15px;
    line-height: 1.7;
    color: #666;
    margin: 0;
}

.material-grid{
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
}

.material-card{
    background: #fff;
    border-radius: 22px;
    overflow: hidden;
    box-shadow: 0 10px 35px rgba(0,0,0,0.06);
    transition: transform .35s ease, box-shadow .35s ease;
}

.material-card:hover{
    transform: translateY(-8px);
    box-shadow: 0 18px 40px rgba(0,0,0,0.10);
}

.material-img{
    position: relative;
    overflow: hidden;
}

.material-img img{
    width: 100%;
    height: 600px;   /* 图片高度改为600px */
    object-fit: cover;
    display: block;
    transition: transform .5s ease;
}

.material-card:hover .material-img img{
    transform: scale(1.05);
}

.material-tag{
    position: absolute;
    left: 18px;
    top: 18px;
    display: inline-block;
    padding: 8px 14px;
    background: rgba(255,255,255,0.92);
    color: #333;
    font-size: 13px;
    font-weight: 600;
    border-radius: 999px;
    backdrop-filter: blur(8px);
}

.material-info{
    padding: 22px 20px 26px;
}

.material-info h3{
    font-size: 22px;
    color: #222;
    margin: 0 0 10px;
}

.material-info p{
    font-size: 15px;
    line-height: 1.8;
    color: #666;
    margin: 0;
}

/* 平板 */
@media (max-width: 1200px){
    .material-grid{
        grid-template-columns: repeat(3, 1fr);
    }
}

/* 手机 */
@media (max-width: 768px){
    .materials-section{
        padding: 70px 0;
    }

    .materials-section .section-title{
        font-size: 30px;
    }

    .materials-highlight{
        grid-template-columns: 1fr;
    }

    .material-grid{
        grid-template-columns: 1fr;
    }

    .material-img img{
        height: 420px;
    }
}