* {
margin: 0;
padding: 0;
box-sizing: border-box;
    }

    :root {
--primary: #0f2c2f;
--accent: #d4a373;
--bg-light: #faf9f7;
--border: #e6e2dd;
--text-secondary: #5e5b56;
--ad-tag: #b7476c;
    }

    body {
font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
background: #fff;
color: #1e1e1e;
margin: 0;
display: flex;
min-height: 100vh;
    }

    /* ========== 左侧固定导航 (PC) ========== */
    .sidebar {
width: 260px;
background: #fefcf9;
border-right: 1px solid var(--border);
display: flex;
flex-direction: column;
padding: 2rem 1.5rem;
position: fixed;
top: 0;
left: 0;
bottom: 0;
z-index: 1030;
overflow-y: auto;
    }
    .sidebar .logo {
font-size: 1.6rem;
font-weight: 700;
letter-spacing: -0.5px;
color: var(--primary);
margin-bottom: 2.5rem;
    }
    .sidebar .logo i {
color: var(--accent);
    }
    .sidebar .nav-flex {
flex-direction: column;
display: flex;
gap: 0.5rem;
    }
    .sidebar .nav-link {
color: #3a3a3a;
padding: 0.7rem 1rem;
border-radius: 10px;
font-weight: 500;
transition: all 0.2s;
display: flex;
align-items: center;
gap: 0.7rem;
    }
    .sidebar .nav-link i {
width: 20px;
text-align: center;
color: #8a8a8a;
    }
    .sidebar .nav-link:hover,
    .sidebar .nav-link.active {
background: #f0ebe4;
color: var(--primary);
font-weight: 600;
    }
    .sidebar .nav-link.active i {
color: var(--accent);
    }
    .sidebar .bottom-actions {
margin-top: auto;
display: flex;
flex-direction: column;
gap: 0.8rem;
    }
    .btn-outline-accent {
border: 1px solid var(--accent);
color: var(--primary);
border-radius: 20px;
padding: 0.5rem 1rem;
font-weight: 500;
background: transparent;
    }
    .btn-outline-accent:hover {
background: var(--accent);
color: white;
    }
    .btn-solid-accent {
background: var(--accent);
color: white;
border-radius: 20px;
padding: 0.5rem 1rem;
font-weight: 600;
border: none;
    }

    /* ========== 右侧主内容区 ========== */
    .main-content {
margin-left: 260px;
flex: 1;
padding: 2rem 3rem;
background: #fff;
    }

    /* 筛选栏 */
    .filter-bar {
background: #fefcf9;
border-radius: 24px;
padding: 1rem 1.5rem;
margin: 1.5rem 0 2rem 0;
border: 1px solid var(--border);
display: flex;
flex-wrap: wrap;
align-items: center;
justify-content: space-between;
gap: 1rem;
    }
    .filter-group {
display: flex;
flex-wrap: wrap;
gap: 0.6rem;
    }
    .filter-chip {
background: white;
border: 1px solid #e2dbd3;
border-radius: 40px;
padding: 0.4rem 1.2rem;
font-size: 0.85rem;
font-weight: 500;
color: #4a3f37;
cursor: pointer;
transition: all 0.2s;
    }
    .filter-chip.active {
background: var(--primary);
border-color: var(--primary);
color: white;
    }
    .filter-chip:hover:not(.active) {
border-color: var(--accent);
background: #fff6ef;
    }
    .sort-select {
border-radius: 30px;
border: 1px solid #e2dbd3;
padding: 0.4rem 1rem;
font-size: 0.85rem;
background: white;
outline: none;
    }

    /* 品牌网格卡片 */
    .brands-grid {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
gap: 2rem;
margin: 2rem 0 2rem;
    }
    .brand-list-card {
background: #ffffff;
border-radius: 28px;
border: 1px solid var(--border);
padding: 1.5rem;
transition: all 0.25s ease;
box-shadow: 0 4px 12px rgba(0,0,0,0.02);
display: flex;
flex-direction: column;
    }
    .brand-list-card:hover {
transform: translateY(-5px);
border-color: var(--accent);
box-shadow: 0 20px 30px -10px rgba(0,0,0,0.05);
    }
    .brand-header {
display: flex;
align-items: center;
gap: 1rem;
margin-bottom: 1rem;
    }
    .brand-icon-lg {
width: 70px;
height: 70px;
background: #f4f1ec;
border-radius: 30px;
display: flex;
align-items: center;
justify-content: center;
font-size: 2rem;
color: var(--primary);
transition: 0.2s;
    }
    .brand-title {
flex: 1;
    }
    .brand-title h5 {
font-weight: 700;
margin-bottom: 0.2rem;
    }
    .badge-cert {
background: #eae3d9;
color: #5e4b36;
font-size: 0.65rem;
border-radius: 30px;
padding: 0.2rem 0.7rem;
display: inline-block;
font-weight: 500;
    }
    .brand-desc {
font-size: 0.85rem;
color: #6a655e;
margin: 0.8rem 0;
line-height: 1.4;
    }
    .brand-tags {
display: flex;
flex-wrap: wrap;
gap: 0.5rem;
margin: 0.75rem 0;
    }
    .brand-tag {
background: #f5f2ee;
border-radius: 20px;
padding: 0.2rem 0.8rem;
font-size: 0.7rem;
font-weight: 500;
    }
    .brand-footer {
margin-top: auto;
display: flex;
justify-content: space-between;
align-items: center;
border-top: 1px solid #f0ede8;
padding-top: 1rem;
margin-top: 0.8rem;
    }
    .btn-sm-outline {
border-radius: 40px;
font-size: 0.75rem;
padding: 0.35rem 1rem;
border: 1px solid var(--border);
background: white;
    }
    .btn-sm-outline:hover {
background: var(--primary);
color: white;
border-color: var(--primary);
    }
    .partner-banner {
background: linear-gradient(105deg, #fef8f2 0%, #faf5ed 100%);
border-radius: 32px;
padding: 2rem 2rem;
margin: 2rem 0 1rem;
border: 1px solid var(--border);
text-align: center;
    }
    .empty-state {
text-align: center;
padding: 3rem;
background: #faf9f7;
border-radius: 40px;
    }

    /* 移动端适配 */
    .mobile-nav {
display: none;
position: fixed;
top: 0;
left: 0;
right: 0;
z-index: 1040;
background: rgba(255,255,255,0.95);
backdrop-filter: blur(10px);
border-bottom: 1px solid var(--border);
padding: 0.8rem 1.2rem;
    }
    .mobile-nav .navbar-brand {
font-weight: 700;
color: var(--primary);
font-size: 1.3rem;
    }
    .mobile-nav .navbar-toggler {
border: none;
padding: 0.4rem;
font-size: 1.5rem;
color: var(--primary);
background: transparent;
    }
    .mobile-menu {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: rgba(255,255,255,0.98);
backdrop-filter: blur(15px);
z-index: 1050;
transform: translateX(-100%);
transition: transform 0.3s ease;
display: flex;
flex-direction: column;
padding: 2rem 1.5rem;
    }
    .mobile-menu.show {
transform: translateX(0);
    }
    .mobile-menu .close-btn {
align-self: flex-end;
font-size: 1.8rem;
background: none;
border: none;
color: var(--primary);
margin-bottom: 2rem;
    }
    .mobile-menu .nav-link {
font-size: 1.2rem;
padding: 1rem 0;
border-bottom: 1px solid #f0ede8;
color: #333;
font-weight: 500;
display: flex;
align-items: center;
gap: 0.8rem;
    }
    .mobile-menu .nav-link i {
width: 24px;
color: var(--accent);
    }

    @media (max-width: 992px) {
.sidebar {
  width: 220px;
  padding: 1.5rem 1rem;
}
.main-content {
  margin-left: 220px;
  padding: 1.8rem 1.8rem;
}
.brands-grid {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}
    }

    @media (max-width: 768px) {
body {
  flex-direction: column;
  padding-top: 70px;
}
.sidebar {
  display: none;
}
.mobile-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.main-content {
  margin-left: 0;
  padding: 1.2rem 1rem;
}
.filter-bar {
  flex-direction: column;
  align-items: stretch;
}
.filter-group {
  justify-content: flex-start;
  overflow-x: auto;
  flex-wrap: nowrap;
  padding-bottom: 0.4rem;
}
.brands-grid {
  grid-template-columns: 1fr;
  gap: 1.2rem;
}
.partner-banner {
  padding: 1.5rem;
}
    }
.btn-outline-accent a {color:#000;text-decoration:none;}
.btn-solid-accent a {color:#fff;text-decoration:none;}