/* ===================================================
   宠物用品展示站 · 全站样式
   配色:白底留白 + 深墨绿主色 + 暖沙色点缀,简洁大气
   =================================================== */

:root {
  --pc-primary: #1f3d2b;      /* 深墨绿:导航、按钮、标题 */
  --pc-primary-soft: #2e5a40; /* 悬停态 */
  --pc-accent: #d9a441;       /* 暖沙金:点缀、强调 */
  --pc-bg: #ffffff;           /* 页面底色 */
  --pc-bg-soft: #f7f6f2;      /* 浅米灰分区背景 */
  --pc-text: #2b2b2b;         /* 正文 */
  --pc-muted: #7a7a76;        /* 次要文字 */
  --pc-line: #e8e6e0;         /* 分隔线 */
}

html { scroll-behavior: smooth; }

body {
  font-family: "Segoe UI", "Helvetica Neue", Arial, "PingFang SC",
    "Microsoft YaHei", sans-serif;
  color: var(--pc-text);
  background: var(--pc-bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, .navbar-brand { color: var(--pc-primary); }

/* ---------- 导航 ---------- */
.navbar {
  background: rgba(255, 255, 255, .95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--pc-line);
}
.navbar .nav-link {
  color: var(--pc-text);
  font-weight: 500;
  margin: 0 .35rem;
  padding: .5rem .9rem !important;
  border-radius: 999px;
  transition: color .2s, background .2s;
}
.navbar .nav-link:hover { color: var(--pc-primary); background: var(--pc-bg-soft); }
.navbar .nav-link.active { color: #fff; background: var(--pc-primary); }
.navbar-brand { font-weight: 700; letter-spacing: .5px; }
.navbar-brand .brand-dot { color: var(--pc-accent); }

/* ---------- 通用区块 ---------- */
.section { padding: 5.5rem 0; }
.section-soft { background: var(--pc-bg-soft); }

.section-title {
  font-weight: 700;
  margin-bottom: .6rem;
}
.section-sub {
  color: var(--pc-muted);
  max-width: 620px;
  margin: 0 auto 3rem;
}

/* ---------- 按钮 ---------- */
.btn-primary {
  --bs-btn-bg: var(--pc-primary);
  --bs-btn-border-color: var(--pc-primary);
  --bs-btn-hover-bg: var(--pc-primary-soft);
  --bs-btn-hover-border-color: var(--pc-primary-soft);
  --bs-btn-active-bg: var(--pc-primary-soft);
  --bs-btn-active-border-color: var(--pc-primary-soft);
  border-radius: 999px;
  padding: .6rem 1.6rem;
}
.btn-outline-primary {
  --bs-btn-color: var(--pc-primary);
  --bs-btn-border-color: var(--pc-primary);
  --bs-btn-hover-bg: var(--pc-primary);
  --bs-btn-hover-border-color: var(--pc-primary);
  border-radius: 999px;
  padding: .6rem 1.6rem;
}
.btn-accent {
  background: var(--pc-accent);
  border: none;
  color: #fff;
  border-radius: 999px;
  padding: .6rem 1.6rem;
}
.btn-accent:hover { background: #c8940f; color: #fff; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(180deg, var(--pc-bg-soft) 0%, #fff 100%);
  padding: 7rem 0 5.5rem;
}
.hero h1 { font-weight: 800; font-size: clamp(2.2rem, 4.5vw, 3.4rem); }
.hero p.lead { color: var(--pc-muted); max-width: 540px; }
.hero-emoji {
  font-size: clamp(4rem, 9vw, 6.5rem);
  line-height: 1;
  user-select: none;
}

/* ---------- 产品卡片 ---------- */
.product-card {
  border: 1px solid var(--pc-line);
  border-radius: 1rem;
  overflow: hidden;
  background: #fff;
  transition: transform .25s ease, box-shadow .25s ease;
  height: 100%;
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(31, 61, 43, .10);
}
.product-thumb {
  height: 190px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4.2rem;
  background: var(--pc-bg-soft);
  user-select: none;
}
/* 产品卡片真实图片(图片缺失时回退到 .product-thumb emoji) */
.product-img {
  width: 100%;
  height: 190px;
  object-fit: cover;
  display: block;
  background: var(--pc-bg-soft);
}
.product-card .card-body { padding: 1.25rem 1.35rem 1.5rem; }
.product-cat {
  font-size: .78rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--pc-muted);
}
.product-name { font-weight: 600; font-size: 1.05rem; margin: .3rem 0 .5rem; }
.product-price {
  color: var(--pc-primary);
  font-weight: 700;
  font-size: 1.15rem;
  margin: 0;
}
.product-price small { color: var(--pc-muted); font-weight: 400; }

/* 分类筛选按钮 */
.filter-btn {
  border: 1px solid var(--pc-line);
  background: #fff;
  color: var(--pc-text);
  border-radius: 999px;
  padding: .45rem 1.3rem;
  margin: 0 .3rem .8rem;
  transition: all .2s;
}
.filter-btn:hover { border-color: var(--pc-primary); color: var(--pc-primary); }
.filter-btn.active {
  background: var(--pc-primary);
  border-color: var(--pc-primary);
  color: #fff;
}

/* ---------- 理念/关于 ---------- */
.value-item {
  background: #fff;
  border: 1px solid var(--pc-line);
  border-radius: 1rem;
  padding: 2.2rem 1.8rem;
  height: 100%;
}
.value-icon { font-size: 2.4rem; margin-bottom: 1rem; }

/* 理念卡片图片 */
.value-photo {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: .6rem;
  margin: 0 auto 1rem;
  display: block;
}

/* 团队成员真实照片 */
.team-photo {
  width: 100%;
  max-width: 400px;
  aspect-ratio: 1 / 1;
  height: auto;
  object-fit: cover;
  border-radius: 0;
  border: 3px solid var(--pc-bg-soft);
  box-shadow: 0 6px 18px rgba(31, 61, 43, .12);
  margin: 0 auto 1rem;
  display: block;
}
.value-item h4 { font-size: 1.15rem; font-weight: 600; }
.value-item p { color: var(--pc-muted); margin: 0; }

/* ---------- 页脚 ---------- */
.footer {
  background: var(--pc-primary);
  color: rgba(255, 255, 255, .82);
  padding: 3.5rem 0 1.5rem;
  margin-top: 0;
}
.footer a { color: rgba(255, 255, 255, .82); text-decoration: none; }
.footer a:hover { color: var(--pc-accent); }
.footer .footer-title { color: #fff; font-weight: 600; margin-bottom: 1rem; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .15);
  margin-top: 2.5rem;
  padding-top: 1.2rem;
  font-size: .875rem;
  color: rgba(255, 255, 255, .55);
}

/* ---------- WhatsApp 悬浮按钮 ---------- */
.wa-float {
  position: fixed;
  right: 1.4rem;
  bottom: 1.4rem;
  z-index: 1080;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(37, 211, 102, .45);
  transition: transform .2s;
}
.wa-float:hover { transform: scale(1.08); color: #fff; }
.wa-float svg { width: 28px; height: 28px; fill: currentColor; }

/* ---------- 联系页 ---------- */
.contact-card {
  border: 1px solid var(--pc-line);
  border-radius: 1rem;
  padding: 2.5rem;
  height: 100%;
}
.wa-btn {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  background: #25d366;
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: .8rem 2rem;
  font-weight: 600;
  font-size: 1.05rem;
  text-decoration: none;
  transition: background .2s, transform .2s;
}
.wa-btn:hover { background: #1fb457; color: #fff; transform: translateY(-2px); }
.wa-btn svg { width: 24px; height: 24px; fill: currentColor; }

/* ---------- 响应式微调 ---------- */
@media (max-width: 767.98px) {
  .section { padding: 3.5rem 0; }
  .hero { padding: 4.5rem 0 3.5rem; text-align: center; }
  .hero p.lead { margin-left: auto; margin-right: auto; }
}