/* =================================================================
   宠胖子 × 尾尾相伴 WEITAIL · 老年期小型犬全价风干软粮 · 品牌站
   视觉基准:风格1 / 风格2(米色+暖金+衬线+留白)
   ================================================================= */

:root{
  --bg:        #F4ECDF;
  --bg-2:      #FAF5EC;
  --bg-card:   #FBF7F0;
  --bg-deep:   #EEE2CC;
  --ink:       #2B1B0E;
  --ink-2:     #5A4634;
  --ink-3:     #8A735A;
  --brown:     #4A2818;
  --brown-2:   #6A3A23;
  --gold:      #C8A26B;
  --gold-soft: #E8C77A;
  --gold-deep: #A37E47;
  --line:      #E1D3B7;
  --line-2:    #D6C2A2;
  --shadow:    0 14px 40px -22px rgba(74,40,24,.30), 0 4px 14px -8px rgba(74,40,24,.12);

  --font-zh:   'Noto Serif SC', 'Songti SC', 'STSong', '宋体', serif;
  --font-en:   'Cormorant Garamond', 'Noto Serif SC', serif;
  --font-sans: 'Noto Sans SC', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;

  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;
  --r-xl: 32px;
}

*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: var(--font-zh);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-weight: 400;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;font-weight:500;letter-spacing:.01em}
p{margin:0}

.container{
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ===== Reveal on scroll ===== */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .9s ease, transform .9s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ===================== HEADER ===================== */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(244,236,223,.85);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s;
}
.site-header.scrolled{ border-bottom-color: var(--line); }
.nav{
  display:flex;align-items:center;justify-content:space-between;
  padding-top: 18px;padding-bottom: 18px;
  gap: 24px;
}
.brand{display:flex;align-items:center;line-height:1}
.brand-logo{height:32px;width:auto;display:block}
.nav-links{display:flex;gap:36px}
.nav-links a{font-size:15px;color:var(--ink-2);position:relative;padding:6px 0;transition:color .25s}
.nav-links a:hover{color:var(--brown)}
.nav-links a::after{content:'';position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--brown);transform:scaleX(0);transform-origin:left;transition:transform .35s}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-icons{display:none}

/* ===================== HERO ===================== */
.hero{
  padding: 64px 0 96px;
  background:
    radial-gradient(1200px 600px at 80% 10%, rgba(232,199,122,.22), transparent 60%),
    radial-gradient(900px 500px at 10% 90%, rgba(200,162,107,.18), transparent 60%),
    var(--bg);
}
.hero-grid{
  display:grid;grid-template-columns: 1.05fr 1fr;gap:64px;align-items:center;
}
.eyebrow{
  display:inline-block;
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: .35em;
  color: var(--ink-3);
  text-transform: uppercase;
  border-bottom: 1px solid var(--gold);
  padding-bottom: 6px;
  margin-bottom: 28px;
}
.hero h1{
  font-size: clamp(40px, 5.4vw, 72px);
  line-height: 1.18;
  font-weight: 500;
  letter-spacing: .02em;
  color: var(--ink);
  margin-bottom: 28px;
}
.hero h1 .hl{color:var(--brown);font-style:italic;font-family:var(--font-en);font-weight:500}
.lead{
  font-size: 18px;line-height:1.85;color:var(--ink-2);
  margin-bottom: 36px;max-width: 520px;
}
.cta-row{display:flex;gap:16px;align-items:center;margin-bottom:36px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding: 14px 30px;
  font-size:15px;letter-spacing:.06em;
  border-radius: 999px;
  transition: transform .25s, background .25s, color .25s, box-shadow .25s;
  white-space: nowrap;
}
.btn-primary{background:var(--brown);color:#FBF7F0;box-shadow:0 8px 22px -10px rgba(74,40,24,.55)}
.btn-primary:hover{background:var(--brown-2);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line-2)}
.btn-ghost:hover{border-color:var(--brown);color:var(--brown)}
.btn-dark{background:var(--ink);color:#FBF7F0;margin-top:24px}
.btn-dark:hover{background:var(--brown);transform:translateY(-2px)}

.hero-bullets{display:flex;flex-direction:column;gap:10px}
.hero-bullets li{
  font-size:14.5px;color:var(--ink-2);
  display:flex;align-items:center;gap:10px;
}
.hero-bullets li span{color:var(--gold-deep);font-size:14px}

/* Hero 视觉 */
.hero-visual{position:relative;min-height:520px}
.hero-photo{
  position:absolute;inset:0;
  border-radius: var(--r-xl);
  overflow:hidden;
  box-shadow: var(--shadow);
  background: #ddd;
}
.hero-photo img{width:100%;height:100%;object-fit:cover;display:block}

.hero-product{
  position: absolute;
  left: -28px; bottom: -28px;
  width: 240px;
  background: transparent;
  border: 0;
  padding: 0;
  z-index: 5;
  filter: drop-shadow(0 22px 36px rgba(74,40,24,.32)) drop-shadow(0 6px 12px rgba(74,40,24,.18));
  animation: heroProductFloat 5.5s ease-in-out infinite;
  transition: transform .4s;
}
.hero-product:hover{ animation-play-state: paused; transform: translateY(-6px) rotate(-2deg) scale(1.03); }
.hero-product img{
  width:100%; height: auto; display: block; border-radius: 0;
}
@keyframes heroProductFloat{
  0%, 100%{ transform: translateY(0) rotate(0deg); }
  50%{ transform: translateY(-10px) rotate(-1.2deg); }
}

.hero-badge{
  position:absolute;right:20px;top:20px;
  width: 116px;height:116px;border-radius:50%;
  background: var(--brown);
  color: #FBF7F0;
  display:flex;align-items:center;justify-content:center;
  box-shadow: 0 14px 32px -12px rgba(74,40,24,.55);
  border: 4px solid rgba(251,247,240,.85);
}
.badge-circle{text-align:center;line-height:1}
.badge-circle span{font-family:var(--font-en);font-size:36px;font-weight:600;display:inline-block}
.badge-circle .pct{font-size:18px;margin-left:2px;font-weight:400}
.badge-circle em{display:block;margin-top:6px;font-style:normal;font-size:10.5px;letter-spacing:.2em;opacity:.85}

/* Hero 底部产品信息条(全宽,不再遮挡主图) */
.hero-strip{
  margin-top: 40px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 22px 36px;
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  box-shadow: var(--shadow);
}
.hero-strip .strip-item{
  display: flex; flex-direction: column; gap: 4px;
  min-width: 0;
}
.hero-strip .strip-lbl{
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: .28em;
  color: var(--ink-3);
  text-transform: uppercase;
}
.hero-strip .strip-val{
  font-size: 16px;
  color: var(--ink);
  font-weight: 500;
  letter-spacing: .02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.hero-strip .strip-val em{
  font-family: var(--font-en);
  font-style: normal;
  color: var(--ink-3);
  font-size: 14px;
  margin-left: 4px;
  letter-spacing: .04em;
}
.hero-strip .strip-divider{
  width: 1px;
  height: 36px;
  background: var(--line-2);
  justify-self: center;
}

/* ===================== FEATURES 4 大优势 ===================== */
.features{
  background: var(--bg-2);
  padding: 56px 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.feature-row{
  display:grid;grid-template-columns: repeat(4, 1fr);gap:36px;
  text-align:center;
}
.feature-row li .ico{
  width: 64px;height: 64px;
  margin: 0 auto 18px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background: var(--bg-card);
  border: 1px solid var(--line-2);
  font-size: 26px;
  transition: transform .3s, border-color .3s, background .3s;
}
.feature-row li:hover .ico{transform:translateY(-4px);border-color:var(--brown);background:#fff}
.feature-row h3{font-size:18px;color:var(--ink);margin-bottom:6px;font-weight:500}
.feature-row p{font-size:13.5px;color:var(--ink-3);letter-spacing:.04em}

/* ===================== 通用 Section Head ===================== */
.section-head{ text-align:center; max-width: 720px; margin: 0 auto 56px; }
.kicker{
  display:inline-block;
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: .35em;
  color: var(--gold-deep);
  text-transform: uppercase;
  margin-bottom: 18px;
}
.section-head h2{
  font-size: clamp(28px, 3.6vw, 44px);
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 18px;
  letter-spacing: .02em;
}
.section-head h2::after{
  content:'';display:block;width:48px;height:2px;background:var(--gold);
  margin: 22px auto 0;
}
.section-head .sub{color:var(--ink-2);font-size:16px;line-height:1.8;margin-top:22px}

/* ===================== PRODUCT ===================== */
.product{ padding: 110px 0 90px; background: var(--bg); }
.product-grid{ display:grid; grid-template-columns: 1fr; gap: 32px; }
.product-card{
  display:grid;grid-template-columns: 1fr 1fr;gap: 56px;align-items:center;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  padding: 48px;
  box-shadow: var(--shadow);
}
.product-img{
  border-radius: var(--r-md);
  overflow: hidden;
  background: #ECE0CB;
  aspect-ratio: 1/1;
}
.product-img img{width:100%;height:100%;object-fit:cover}
.product-info h3{font-size:26px;font-weight:500;margin-bottom:18px;letter-spacing:.02em}
.product-info p{font-size:15.5px;color:var(--ink-2);line-height:1.95;margin-bottom:14px}
.check li{
  position:relative;padding-left:28px;
  font-size:15px;color:var(--ink-2);line-height:1.8;
}
.check li::before{
  content:'';position:absolute;left:0;top:10px;width:16px;height:8px;
  border-left:2px solid var(--brown);border-bottom:2px solid var(--brown);
  transform:rotate(-45deg);
}
.check.tight li{font-size:15px;padding-left:26px;margin-bottom:6px}

/* ===================== GUARD 四维守护 ===================== */
.guard{ padding: 110px 0; background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.guard-grid{ display:grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.guard-card{
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 32px 26px 30px;
  transition: transform .35s, box-shadow .35s, border-color .35s;
  position: relative; overflow: hidden;
}
.guard-card::before{
  content:'';position:absolute;left:0;right:0;top:0;height:3px;
  background: linear-gradient(90deg,var(--gold-soft),var(--gold));
  opacity:.5;transition:opacity .35s;
}
.guard-card:hover{ transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--gold); }
.guard-card:hover::before{opacity:1}
.guard-card .num{
  font-family: var(--font-en);
  font-size: 36px; color: var(--gold-deep);
  font-weight: 600; line-height: 1; margin-bottom: 16px;
}
.guard-card h3{ font-size: 22px; color: var(--ink); margin-bottom: 12px; font-weight: 500; }
.guard-card > p{ font-size: 14.5px; color: var(--ink-2); line-height: 1.85; margin-bottom: 18px; }
.guard-card ul{ display: flex; flex-direction: column; gap: 8px; }
.guard-card ul li{ font-size: 13px; color: var(--ink-3); padding-left: 18px; position: relative; }
.guard-card ul li::before{
  content:''; position:absolute; left:0; top:9px; width: 6px; height: 6px;
  background: var(--brown); border-radius: 50%;
}

/* ===================== NUTRITION ===================== */
.nutrition{ padding: 110px 0; background: var(--bg); }
.nut-grid{ display:grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 64px; }
.nut-cell{
  text-align:center; padding: 36px 18px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  transition: transform .3s, box-shadow .3s;
}
.nut-cell:hover{ transform: translateY(-4px); box-shadow: var(--shadow); }
.nut-cell .big{
  font-family: var(--font-en);
  font-size: clamp(36px, 4.6vw, 56px);
  color: var(--brown);
  font-weight: 600;
  line-height: 1;
  letter-spacing: .01em;
}
.nut-cell .big .u{ font-size: .55em; color: var(--gold-deep); margin-left: 2px; font-weight: 500; }
.nut-cell .lbl{ font-size: 15px; color: var(--ink); margin-top: 12px; font-weight: 500; }
.nut-cell .hint{ font-size: 12px; color: var(--ink-3); margin-top: 8px; line-height: 1.5; padding: 0 4px; }

.craft-grid{ display:grid; grid-template-columns: 1fr 1.15fr; gap: 32px; }
.craft-card{
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 36px;
}
.craft-card h3{ font-size: 22px; color: var(--ink); margin-bottom: 14px; font-weight: 500; }
.craft-card p{ font-size: 15px; color: var(--ink-2); line-height: 1.85; margin-bottom: 18px; }
.craft-card-visual{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  padding: 28px;
  align-items: center;
}
.craft-card-visual .craft-fig{
  margin: 0;
  border-radius: var(--r-md);
  overflow: hidden;
  background: #ECE0CB;
  aspect-ratio: 3/4;
  box-shadow: var(--shadow);
}
.craft-card-visual .craft-fig img{
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .8s;
}
.craft-card-visual:hover .craft-fig img{ transform: scale(1.04); }
.craft-card-visual .craft-body{ padding: 4px 0; }
.craft-card-visual .craft-body h3{ margin-bottom: 12px; }
.craft-card-visual .craft-body p{ font-size: 14px; margin-bottom: 14px; }
.craft-card-visual .kv th, .craft-card-visual .kv td{ font-size: 13.5px; padding: 8px 0; }
.kv{ width: 100%; border-collapse: collapse; }
.kv tr{ border-bottom: 1px dashed var(--line); }
.kv tr:last-child{ border-bottom: 0; }
.kv th, .kv td{ padding: 10px 0; font-size: 14px; text-align: left; vertical-align: top; }
.kv th{ color: var(--ink-3); font-weight: 500; width: 38%; }
.kv td{ color: var(--ink); }

/* ===================== SPEC / SKU ===================== */
.spec{ padding: 110px 0; background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sku-grid{ display:grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.sku{
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 28px 24px;
  position: relative;
  transition: transform .35s, box-shadow .35s, border-color .35s;
}
.sku:hover{ transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--gold); }
.sku.hot{ background: var(--ink); color: #FBF7F0; border-color: var(--ink); }
.sku.hot .sku-name{ color: var(--gold-soft); }
.sku.hot .sku-size{ color: #D6C2A2; }
.sku.hot .sku-price{ color: #FBF7F0; }
.sku.hot .sku-price .cur{ color: var(--gold-soft); }
.sku.hot ul li{ color: #C5B79E; }
.sku.hot .sku-tag{ background: var(--gold-soft); color: var(--ink); }

.sku-name{ font-size: 17px; color: var(--ink); font-weight: 500; margin-bottom: 6px; }
.sku-size{ font-size: 13px; color: var(--ink-3); margin-bottom: 22px; letter-spacing: .04em; }
.sku-price{ font-family: var(--font-en); color: var(--brown); margin-bottom: 22px; line-height: 1; }
.sku-price .cur{ font-size: 18px; vertical-align: top; margin-right: 2px; }
.sku-price b{ font-size: 36px; font-weight: 600; }
.sku ul{ display: flex; flex-direction: column; gap: 8px; }
.sku ul li{ font-size: 13px; color: var(--ink-2); padding-left: 16px; position: relative; }
.sku ul li::before{ content:'·'; position: absolute; left: 4px; top: 0; color: var(--gold-deep); font-weight: 700; }
.sku-tag{
  position: absolute; top: -10px; right: 18px;
  background: var(--brown); color: #FBF7F0;
  font-size: 11px; letter-spacing: .12em;
  padding: 4px 10px; border-radius: 999px;
}
.spec-foot{ text-align: center; margin-top: 36px; color: var(--ink-3); font-size: 13.5px; letter-spacing: .03em; }

/* ===================== FACTORY ===================== */
.factory{ padding: 110px 0; background: var(--bg); }
.factory-grid{ display:grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: start; }
.factory-text{ padding-top: 8px; }
.factory-text .check li{ font-size: 15.5px; line-height: 1.85; }
.factory-badges{ display: flex; flex-direction: column; gap: 14px; }
.badge-row{ display: flex; flex-wrap: wrap; gap: 10px; }
.badge{
  display: inline-flex; align-items: center;
  padding: 10px 18px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px; letter-spacing: .12em; color: var(--ink-2);
  font-family: var(--font-en);
  transition: all .25s;
}
.badge:hover{ border-color: var(--brown); color: var(--brown); }
.badge.alt{ background: var(--bg-2); }
.badge.gold{ background: linear-gradient(135deg, var(--gold-soft), var(--gold)); color: #2B1B0E; border-color: transparent; }

/* ===================== GUIDE ===================== */
.guide{ padding: 110px 0; background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.guide-grid{ display:grid; grid-template-columns: 1fr 1.2fr; gap: 48px; align-items: start; }
.switch, .faq{ background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 36px; }
.switch h3, .faq h3{ font-size: 22px; color: var(--ink); margin-bottom: 22px; font-weight: 500; }
.switch ol{ display: flex; flex-direction: column; gap: 14px; counter-reset: step; }
.switch ol li{
  display: grid; grid-template-columns: auto 1fr; gap: 4px 18px;
  padding: 16px 18px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  position: relative;
}
.switch ol li b{ color: var(--brown); font-weight: 500; font-size: 14px; }
.switch ol li span{ color: var(--ink); font-size: 15px; }
.switch ol li em{ grid-column: 1 / -1; color: var(--ink-3); font-size: 13px; font-style: normal; line-height: 1.6; }

.faq details{
  border-bottom: 1px solid var(--line);
  padding: 16px 0;
}
.faq details:last-of-type{ border-bottom: 0; }
.faq summary{
  cursor: pointer;
  font-size: 15.5px; color: var(--ink); font-weight: 500;
  list-style: none;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  transition: color .25s;
}
.faq summary::-webkit-details-marker{ display: none; }
.faq summary::after{
  content: '+';
  font-family: var(--font-en);
  font-size: 22px; color: var(--gold-deep);
  transition: transform .3s;
  flex-shrink: 0;
  width: 20px; text-align: center;
}
.faq details[open] summary::after{ content: '−'; }
.faq summary:hover{ color: var(--brown); }
.faq details p{ margin-top: 12px; color: var(--ink-2); font-size: 14.5px; line-height: 1.85; }

/* ===================== ABOUT ===================== */
.about{ padding: 110px 0; background: var(--bg); }
.about-grid{ display:grid; grid-template-columns: 1.05fr 1.1fr 0.85fr; gap: 48px; align-items: start; }
.about-text .kicker{ display: inline-block; }
.about-text h2{ font-size: clamp(28px, 3.4vw, 40px); font-weight: 500; color: var(--ink); margin-bottom: 24px; letter-spacing: .02em; }
.about-text p{ color: var(--ink-2); font-size: 15.5px; line-height: 1.95; margin-bottom: 16px; }
.about-figure{
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  position: sticky;
  top: 100px;
}
.about-figure img{
  width: 100%; aspect-ratio: 3/4; object-fit: cover;
  display: block;
}
.about-figure figcaption{
  padding: 14px 18px 16px;
  font-size: 12.5px;
  color: var(--ink-3);
  letter-spacing: .12em;
  text-align: center;
  font-family: var(--font-en);
  text-transform: uppercase;
  background: var(--bg-card);
}

.about-pillars ul{ display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.about-pillars li{
  display: flex; gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 22px 20px;
  transition: transform .3s, box-shadow .3s;
}
.about-pillars li:hover{ transform: translateY(-4px); box-shadow: var(--shadow); }
.about-pillars li b{
  font-family: var(--font-en);
  font-size: 26px; color: var(--gold-deep); font-weight: 600;
  flex-shrink: 0; line-height: 1;
}
.about-pillars li h4{ font-size: 15.5px; color: var(--ink); margin-bottom: 4px; font-weight: 500; }
.about-pillars li p{ font-size: 13px; color: var(--ink-3); line-height: 1.5; }

/* ===================== LIFESTYLE ===================== */
.lifestyle{ padding: 110px 0; background: var(--bg-2); border-top: 1px solid var(--line); }
.life-grid{ display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.life-item{ margin: 0; border-radius: var(--r-md); overflow: hidden; background: #ECE0CB; position: relative; }
.life-item img{ width: 100%; aspect-ratio: 4/5; object-fit: cover; transition: transform .8s; }
.life-item:hover img{ transform: scale(1.05); }
.life-item figcaption{
  position: absolute; left: 16px; right: 16px; bottom: 14px;
  color: #FBF7F0; font-size: 14px; letter-spacing: .04em;
  text-shadow: 0 2px 8px rgba(0,0,0,.4);
}

/* ===================== FOOTER ===================== */
.site-footer{ background: var(--ink); color: #D6C2A2; padding: 72px 0 0; }
.foot-grid{ display:grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 48px; padding-bottom: 56px; }
.foot-brand .foot-logo{ height: 32px; width: auto; display: block; }
.foot-brand p{ color: #8A735A; font-size: 13.5px; line-height: 1.7; margin-top: 16px; max-width: 280px; }
.foot-col h5{ color: #FBF7F0; font-size: 14px; letter-spacing: .15em; margin-bottom: 18px; font-weight: 500; }
.foot-col a{ display: block; color: #8A735A; font-size: 14px; margin-bottom: 10px; transition: color .25s; }
.foot-col a:hover{ color: var(--gold-soft); }
.subscribe{ display: flex; gap: 8px; }
.subscribe input{
  flex: 1; min-width: 0;
  background: transparent;
  border: 1px solid #4A3725;
  color: #FBF7F0;
  padding: 12px 16px;
  border-radius: 999px;
  font-size: 14px; font-family: inherit;
  outline: none;
  transition: border-color .25s;
}
.subscribe input::placeholder{ color: #6B5238; }
.subscribe input:focus{ border-color: var(--gold); }
.subscribe button{
  background: var(--gold);
  color: var(--ink);
  border: 0;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 14px; font-weight: 500; letter-spacing: .08em;
  transition: background .25s;
}
.subscribe button:hover{ background: var(--gold-soft); }
.subscribe + .hint{ color: #6B5238; font-size: 12.5px; margin-top: 12px; letter-spacing: .03em; }

.foot-bottom{
  display: flex; justify-content: space-between; align-items: center;
  padding: 24px 32px;
  border-top: 1px solid #3A281A;
  color: #6B5238;
  font-size: 12.5px;
  letter-spacing: .04em;
}
.foot-links a{ color: #6B5238; margin: 0 4px; }
.foot-links a:hover{ color: var(--gold-soft); }

/* ===================== 响应式 ===================== */
@media (max-width: 1024px){
  .hero-grid{ grid-template-columns: 1fr; gap: 48px; }
  .hero-visual{ min-height: 480px; }
  .feature-row{ grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .product-card{ grid-template-columns: 1fr; padding: 32px; }
  .guard-grid{ grid-template-columns: repeat(2,1fr); }
  .nut-grid{ grid-template-columns: repeat(2,1fr); }
  .craft-grid{ grid-template-columns: 1fr; }
  .sku-grid{ grid-template-columns: repeat(3, 1fr); }
  .factory-grid{ grid-template-columns: 1fr; }
  .guide-grid{ grid-template-columns: 1fr; }
  .about-grid{ grid-template-columns: 1fr 1fr; gap: 36px; }
  .about-figure{ position: static; max-width: 360px; justify-self: center; }
  .life-grid{ grid-template-columns: repeat(2, 1fr); }
  .craft-grid{ grid-template-columns: 1fr; }
  .craft-card-visual{ grid-template-columns: 200px 1fr; gap: 20px; padding: 20px; }
  .foot-grid{ grid-template-columns: 1fr 1fr; }
  .hero-strip{ grid-template-columns: 1fr 1fr; gap: 18px 28px; padding: 20px 24px; }
  .hero-strip .strip-divider{ display: none; }
}
@media (max-width: 720px){
  .container{ padding: 0 20px; }
  .nav-links{ display: none; }
  .brand-logo{ height: 26px; }
  .foot-brand .foot-logo{ height: 26px; }
  .hero{ padding: 40px 0 72px; }
  .hero h1{ font-size: 36px; }
  .hero-badge{ right: 12px; top: 12px; width: 86px; height: 86px; border-width: 3px; }
  .badge-circle span{ font-size: 26px; }
  .badge-circle .pct{ font-size: 14px; }
  .badge-circle em{ font-size: 9px; }
  .hero-product{ left: 12px; bottom: 12px; width: 140px; }
  .hero-strip{ grid-template-columns: 1fr 1fr; gap: 16px 20px; padding: 18px 20px; margin-top: 28px; }
  .hero-strip .strip-val{ font-size: 14px; }
  .feature-row{ grid-template-columns: 1fr 1fr; }
  .product, .guard, .nutrition, .spec, .factory, .guide, .about, .lifestyle{ padding: 72px 0; }
  .product-card{ padding: 24px; }
  .guard-grid{ grid-template-columns: 1fr; }
  .nut-grid{ grid-template-columns: 1fr 1fr; }
  .sku-grid{ grid-template-columns: 1fr 1fr; }
  .life-grid{ grid-template-columns: 1fr 1fr; }
  .foot-grid{ grid-template-columns: 1fr; gap: 32px; }
  .foot-bottom{ flex-direction: column; gap: 14px; text-align: center; }
  .switch, .faq, .craft-card{ padding: 24px; }
  .about-pillars ul{ grid-template-columns: 1fr; }
  .about-grid{ grid-template-columns: 1fr; }
  .craft-card-visual{ grid-template-columns: 1fr; gap: 18px; }
  .craft-card-visual .craft-fig{ aspect-ratio: 4/3; }
}