/* 基础 */
:root{
  --container: 1100px;
  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --radius: 1rem;
  --black: #111;
  --gray-1:#f6f6f6;
  --gray-2:#eaeaea;
  --gray-3:#9aa0a6;
  --accent:#111;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: "Noto Sans SC", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--black);
  line-height: 1.6;
  background: #fff;
}

.container{
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

img{max-width:100%;display:block;height:auto}

/* Header */
.site-header{
  border-bottom: 1px solid var(--gray-2);
  background:#fff;
  position:sticky;
  top:0;
  z-index:10;
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: .9rem 0;
}
.brand{
  font-weight:700;
  font-size:1rem;
  letter-spacing:.02em
}
.brand a{text-decoration:none;}
.nav-links a{
  color:var(--black);
  text-decoration:none;
  font-size:.95rem;
  margin-left: 1.5rem;
}

/* Hero / Banner */
.hero{
  position:relative;
  isolation:isolate;
  overflow:hidden;
  /* 关键：给 banner 固定高度（或 min-height） */
  min-height: 695px;               /* 对应你的 1920 × 695 设计稿 */
}
.hero-media{
  position:absolute;
  inset:0;
  /* 用 CSS 设置背景图即可，blade 里面可以去掉 inline style */
  background: url("/images/bgimg.png") no-repeat center center;
  background-size: cover;          /* 需要整张不裁切就改成 contain */
  filter: saturate(1.02);
  transform: scale(1.01);
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background: linear-gradient(
    90deg,
    rgba(255,255,255,.9) 0 45%,
    rgba(255,255,255,.35) 45% 100%
  );
  z-index:0;
}
.hero-inner{
  position:relative;
  z-index:1;
  padding: min(9vw,7rem) 0;
}
.hero-copy{max-width: 26rem;}
.hero-copy h1{
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  line-height:1.15;
  margin:0 0 var(--space-3);
  font-weight:900;
  letter-spacing:.01em;
}
.hero-copy p{
  margin:0 0 var(--space-4);
  color:#333;
}
.btn{
  appearance:none;
  border:0;
  background:#000;
  color:#fff;
  padding:.8rem 1.25rem;
  border-radius:999px;
  cursor:pointer;
  font-weight:600;
  transition:.2s transform ease,.2s box-shadow ease;
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
}
.btn:hover{transform: translateY(-1px);}
.btn:active{transform: translateY(0);}
.btn-dark{background:#000;color:#fff}

/* Lede */
.lede{
  padding: var(--space-6) 0 var(--space-5);
}
.lede p{
  font-size:1.1rem;
  text-align:center;
}

/* Product */
.product{
  padding: var(--space-5) 0 var(--space-6);
}
.grid-2{
  display:grid;
  gap: clamp(1rem, 3vw, 2.25rem);
  grid-template-columns: 1.1fr .9fr;
}
.card{
  border: 1px solid var(--gray-2);
  padding: .75rem;
  border-radius: .5rem;
  background:#fff;
}
.product-info .product-title{
  margin:.25rem 0 .25rem;
  font-size:1.5rem;
}
.muted{
  color:var(--gray-3);
  margin:0 0 .75rem;
}
.price{
  font-size:1.25rem;
  font-weight:700;
  margin-bottom:.25rem;
}
.notice{
  background: var(--gray-1);
  border: 1px dashed var(--gray-2);
  padding: .5rem .75rem;
  border-radius:.5rem;
  font-size:.9rem;
  color:#555;
  margin-bottom:1.25rem;
}
.product-meta{margin: 1.25rem 0;}
.product-meta h3{
  margin:0 0 .4rem;
  font-size:1rem;
}
.product-meta ul{
  margin:.25rem 0 .25rem 1.25rem;
}

/* Testimonial */
.testimonial{
  padding: var(--space-6) 0;
}
.testimonial blockquote{
  max-width:46rem;
  margin:0 auto;
  text-align:center;
  font-style:italic;
  color:#333;
}
.testimonial footer{
  margin-top: .75rem;
  font-style:normal;
  color:#666;
}

/* Footer */
.site-footer{
  background:#111;
  color:#fff;
}
.footer-top{
  display:grid;
  gap: 2rem;
  grid-template-columns: 1.2fr .8fr;
  padding: var(--space-6) 0;
}
.newsletter h4{
  margin:0 0 .35rem;
  font-size:1.1rem;
}
.newsletter-form{
  display:flex;
  gap:.5rem;
  margin-top:.75rem;
}
.newsletter-form input{
  flex:1;
  border:1px solid #333;
  background:#0f0f0f;
  color:#fff;
  border-radius:.5rem;
  padding:.75rem .9rem;
  outline:none;
}
.newsletter-form input::placeholder{
  color:#9b9b9b;
}
.form-msg{
  margin-top:.5rem;
  color:#9b9b9b;
  font-size:.9rem;
}
.footer-columns{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:2rem;
}
.footer-columns h5{
  margin:.25rem 0 .5rem;
  font-size:1rem;
}
.footer-columns a{
  color:#cfcfcf;
  text-decoration:none;
}
.footer-columns a:hover{text-decoration:underline}

.footer-bottom{
  border-top: 1px solid #222;
  padding: .9rem 0 1.25rem;
  display:flex;
  justify-content:center;
}
.made-with{
  color:#cfcfcf;
  text-decoration:none;
}
.made-with:hover{text-decoration:underline}

/* A11y */
.sr-only{
  position:absolute;
  width:1px;
  height:1px;
  padding:0;
  margin:-1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0;
}

/* 响应式 */
@media (max-width: 900px){
  .grid-2{grid-template-columns: 1fr;}

  .hero{
    /* 移动端稍微矮一点，看起来没那么高 */
    min-height: 420px;
  }

  .hero::after{
    background: rgba(255,255,255,.85);
  }

  .hero-copy{max-width: 100%}
  .footer-top{grid-template-columns:1fr}
  .footer-columns{grid-template-columns:1fr 1fr}
}