/* ============================================
   省钱袋 — 全局样式 v3
   设计语言：现代、轻量、柔和渐变、毛玻璃、精致卡片
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --primary: #ff4d4f;
  --primary-light: #ff7875;
  --primary-dark: #e04345;
  --primary-bg: #fff2f0;
  --tb: #ff5000;
  --tb-light: #ff7528;
  --tb-bg: #fff5f0;
  --jd: #e4393c;
  --jd-light: #f04c4f;
  --jd-bg: #fee9e9;
  --pdd: #e02e24;
  --pdd-light: #f04036;
  --pdd-bg: #fff0eb;
  --article: #6366f1;
  --article-light: #818cf8;
  --article-bg: #eef2ff;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-hint: #94a3b8;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-alt: #fafbfc;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.04), 0 1px 3px rgba(0,0,0,.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,.06), 0 1px 4px rgba(0,0,0,.04);
  --shadow-lg: 0 12px 32px rgba(0,0,0,.08), 0 4px 12px rgba(0,0,0,.04);
  --shadow-xl: 0 20px 48px rgba(0,0,0,.12);
  --ease-out: cubic-bezier(.22,1,.36,1);
  --ease-in-out: cubic-bezier(.65,0,.35,1);
  --dur: .3s;
}

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

html {
  scroll-behavior:smooth;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'PingFang SC',
    'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  line-height:1.6;
  color:var(--text-primary);
  background:var(--bg-page);
  min-height:100vh;
}

a { text-decoration:none; color:inherit; }
img { max-width:100%; height:auto; display:block; }
button { font-family:inherit; cursor:pointer; }
ul, ol { list-style:none; }

.container {
  max-width:1400px;
  margin:0 auto;
  padding:0 48px;
}

@media (max-width:768px) {
  .container { padding:0 20px; }
}

@keyframes spin { to { transform:rotate(360deg); } }
@keyframes fadeInUp {
  from { opacity:0; transform:translateY(20px); }
  to { opacity:1; transform:translateY(0); }
}
@keyframes fadeIn {
  from { opacity:0; }
  to { opacity:1; }
}
@keyframes pulse {
  0%, 100% { opacity:1; }
  50% { opacity:.5; }
}
@keyframes shimmer {
  0% { background-position:-200% 0; }
  100% { background-position:200% 0; }
}

/* ============================================
   Header
   ============================================ */
.header {
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(255,255,255,.85);
  backdrop-filter:blur(16px) saturate(180%);
  -webkit-backdrop-filter:blur(16px) saturate(180%);
  border-bottom:1px solid var(--border);
  transition:box-shadow var(--dur) var(--ease-out);
}

.header.scrolled {
  box-shadow:0 4px 20px rgba(0,0,0,.06);
}

.header-container {
  max-width:1400px;
  margin:0 auto;
  padding:0 48px;
}

@media (max-width:768px) {
  .header-container { padding:0 20px; }
}

.header-content {
  display:flex;
  justify-content:space-between;
  align-items:center;
  height:68px;
}

.logo {
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}

.logo-icon {
  width:36px;
  height:36px;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  border-radius:var(--radius-sm);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  font-weight:800;
  color:#fff;
  box-shadow:0 2px 8px rgba(255,77,79,.3);
}

.logo-text {
  display:flex;
  flex-direction:column;
}

.logo h1 {
  font-size:20px;
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.5px;
  background:linear-gradient(135deg,var(--text-primary),var(--text-secondary));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}

.logo .slogan {
  font-size:10px;
  color:var(--text-hint);
  letter-spacing:1.5px;
  text-transform:uppercase;
  -webkit-text-fill-color:var(--text-hint);
}

.nav {
  display:flex;
  align-items:center;
  gap:2px;
}

.nav-item {
  position:relative;
  padding:8px 18px;
  border-radius:var(--radius-sm);
  font-size:14px;
  font-weight:500;
  color:var(--text-secondary);
  transition:all var(--dur) var(--ease-out);
}

.nav-item:hover {
  color:var(--primary);
  background:var(--primary-bg);
}

.nav-item.active {
  color:var(--primary);
  font-weight:600;
}

.nav-item.active::after {
  content:'';
  position:absolute;
  bottom:-1px;
  left:50%;
  transform:translateX(-50%);
  width:20px;
  height:3px;
  background:linear-gradient(90deg,var(--primary),var(--primary-light));
  border-radius:2px;
}

.menu-toggle {
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:32px;
  height:32px;
  background:none;
  border:none;
  padding:6px;
  z-index:101;
  border-radius:var(--radius-sm);
  transition:background var(--dur) var(--ease-out);
}

.menu-toggle:hover { background:var(--border-light); }

.menu-toggle span {
  display:block;
  width:100%;
  height:2px;
  background:var(--text-primary);
  border-radius:2px;
  transition:all .3s var(--ease-out);
}

.menu-toggle.active span:nth-child(1) { transform:rotate(45deg) translate(5px,5px); }
.menu-toggle.active span:nth-child(2) { opacity:0; }
.menu-toggle.active span:nth-child(3) { transform:rotate(-45deg) translate(5px,-5px); }

@media (max-width:768px) {
  .menu-toggle { display:flex; }
  .nav {
    position:fixed;
    top:0;
    right:-100%;
    width:280px;
    height:100vh;
    background:var(--bg-card);
    flex-direction:column;
    padding:80px 24px 24px;
    gap:4px;
    box-shadow:var(--shadow-xl);
    transition:right .35s var(--ease-out);
    z-index:100;
  }
  .nav.nav-open { right:0; }
  .nav-item {
    width:100%;
    padding:12px 16px;
    font-size:16px;
  }
  .nav-item.active::after { display:none; }
  .nav-item.active { background:var(--primary-bg); border-radius:var(--radius-sm); }
  .nav-overlay {
    position:fixed;
    inset:0;
    background:rgba(0,0,0,.3);
    z-index:99;
    opacity:0;
    pointer-events:none;
    transition:opacity .3s var(--ease-out);
  }
  .nav-overlay.show { opacity:1; pointer-events:auto; }
}

/* ============================================
   Hero — 首页
   ============================================ */
.hero {
  position:relative;
  padding:100px 0 80px;
  text-align:center;
  overflow:hidden;
  background:linear-gradient(160deg, #ff4d4f 0%, #ff6b6b 35%, #ffa07a 65%, #ffd4a8 100%);
}

.hero::before {
  content:'';
  position:absolute;
  top:-30%;
  right:-10%;
  width:600px;
  height:600px;
  border-radius:50%;
  background:rgba(255,255,255,.06);
}

.hero::after {
  content:'';
  position:absolute;
  bottom:-20%;
  left:-5%;
  width:400px;
  height:400px;
  border-radius:50%;
  background:rgba(255,255,255,.05);
}

.hero-particles {
  position:absolute;
  inset:0;
  overflow:hidden;
  pointer-events:none;
}

.hero-particle {
  position:absolute;
  width:6px;
  height:6px;
  background:rgba(255,255,255,.2);
  border-radius:50%;
  animation:float 6s var(--ease-in-out) infinite;
}

.hero-particle:nth-child(1) { top:20%; left:10%; animation-delay:0s; width:4px; height:4px; }
.hero-particle:nth-child(2) { top:60%; left:85%; animation-delay:1s; width:8px; height:8px; background:rgba(255,255,255,.15); }
.hero-particle:nth-child(3) { top:30%; left:50%; animation-delay:2s; width:5px; height:5px; }
.hero-particle:nth-child(4) { top:70%; left:20%; animation-delay:3s; width:6px; height:6px; background:rgba(255,255,255,.15); }
.hero-particle:nth-child(5) { top:15%; left:80%; animation-delay:4s; width:4px; height:4px; }
.hero-particle:nth-child(6) { top:80%; left:60%; animation-delay:.5s; width:7px; height:7px; background:rgba(255,255,255,.1); }

@keyframes float {
  0%, 100% { transform:translateY(0) scale(1); opacity:.3; }
  50% { transform:translateY(-30px) scale(1.2); opacity:.6; }
}

.hero-container {
  max-width:720px;
  margin:0 auto;
  position:relative;
  z-index:1;
}

.hero-badge {
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 16px;
  background:rgba(255,255,255,.2);
  backdrop-filter:blur(8px);
  border-radius:20px;
  font-size:12px;
  font-weight:600;
  color:#fff;
  margin-bottom:24px;
  animation:fadeInUp .6s var(--ease-out) both;
}

.hero-badge-dot {
  width:6px;
  height:6px;
  background:#52c41a;
  border-radius:50%;
  animation:pulse 2s infinite;
}

.hero-title {
  font-size:52px;
  font-weight:800;
  line-height:1.15;
  margin-bottom:12px;
  letter-spacing:-1.5px;
  color:#fff;
  text-shadow:0 2px 12px rgba(0,0,0,.1);
  animation:fadeInUp .6s var(--ease-out) .1s both;
}

.hero-title-highlight {
  background:linear-gradient(90deg, #fff, #ffe0d0);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}

.hero-subtitle {
  font-size:18px;
  color:rgba(255,255,255,.85);
  margin-bottom:40px;
  font-weight:400;
  animation:fadeInUp .6s var(--ease-out) .2s both;
}

.hero-search {
  max-width:640px;
  margin:0 auto 32px;
  animation:fadeInUp .6s var(--ease-out) .3s both;
}

.hero-search-box {
  display:flex;
  background:#fff;
  border-radius:var(--radius-xl);
  overflow:hidden;
  box-shadow:0 12px 48px rgba(0,0,0,.15);
  transition:box-shadow var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
}

.hero-search-box:focus-within {
  box-shadow:0 16px 56px rgba(255,77,79,.25);
  transform:scale(1.01);
}

.hero-search-input {
  flex:1;
  padding:18px 24px;
  border:none;
  font-size:16px;
  outline:none;
  color:var(--text-primary);
  background:transparent;
}

.hero-search-input::placeholder { color:var(--text-hint); }

.hero-search-select {
  padding:0 36px 0 16px;
  border:none;
  border-left:1px solid var(--border);
  font-size:14px;
  background:#fff;
  color:var(--text-secondary);
  outline:none;
  cursor:pointer;
  -webkit-appearance:none;
  appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
  transition:background-color var(--dur) var(--ease-out);
}

.hero-search-select:hover { background-color:var(--bg-page); }

.hero-search-btn {
  padding:0 40px;
  background:var(--text-primary);
  color:#fff;
  border:none;
  font-size:15px;
  font-weight:600;
  transition:all var(--dur) var(--ease-out);
  white-space:nowrap;
  letter-spacing:.3px;
}

.hero-search-btn:hover {
  background:#1e293b;
}

.hero-tags {
  display:flex;
  align-items:center;
  justify-content:center;
  flex-wrap:wrap;
  gap:8px;
  animation:fadeInUp .6s var(--ease-out) .4s both;
}

.hero-tags-label {
  font-size:13px;
  color:rgba(255,255,255,.7);
  margin-right:4px;
}

.hero-tag {
  padding:6px 18px;
  background:rgba(255,255,255,.15);
  backdrop-filter:blur(4px);
  border-radius:20px;
  cursor:pointer;
  transition:all var(--dur) var(--ease-out);
  font-size:13px;
  color:#fff;
  border:1px solid rgba(255,255,255,.1);
}

.hero-tag:hover {
  background:rgba(255,255,255,.25);
  transform:translateY(-1px);
}

/* ============================================
   Section
   ============================================ */
.section {
  padding:56px 0;
  animation:fadeIn .6s var(--ease-out) both;
}

.section-header {
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:28px;
}

.section-header-left {
  display:flex;
  align-items:center;
  gap:12px;
}

.section-icon {
  width:32px;
  height:32px;
  border-radius:var(--radius-sm);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
}

.section-icon.tb { background:var(--tb-bg); color:var(--tb); }
.section-icon.jd { background:var(--jd-bg); color:var(--jd); }
.section-icon.pdd { background:var(--pdd-bg); color:var(--pdd); }
.section-icon.article { background:var(--article-bg); color:var(--article); }

.section-header h2 {
  font-size:22px;
  font-weight:700;
  color:var(--text-primary);
  display:flex;
  align-items:center;
  gap:10px;
}

.section-header h2 .section-count {
  font-size:13px;
  font-weight:500;
  color:var(--text-hint);
  background:var(--bg-page);
  padding:2px 10px;
  border-radius:10px;
}

.more-link {
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--text-hint);
  font-size:13px;
  font-weight:500;
  padding:8px 16px;
  border-radius:var(--radius-sm);
  transition:all var(--dur) var(--ease-out);
}

.more-link:hover {
  color:var(--primary);
  background:var(--primary-bg);
  gap:10px;
}

.more-link-arrow {
  font-size:14px;
  transition:transform var(--dur) var(--ease-out);
}

.more-link:hover .more-link-arrow {
  transform:translateX(3px);
}

/* ============================================
   Product Cards
   ============================================ */
.goods-grid {
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:20px;
}

@media (max-width:1200px) { .goods-grid { grid-template-columns:repeat(4,1fr); } }
@media (max-width:992px) { .goods-grid { grid-template-columns:repeat(3,1fr); } }
@media (max-width:640px) { .goods-grid { grid-template-columns:repeat(2,1fr); gap:12px; } }

.goods-card {
  background:var(--bg-card);
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid var(--border);
  transition:all .4s var(--ease-out);
  display:flex;
  flex-direction:column;
  animation:fadeInUp .5s var(--ease-out) both;
}

.goods-card:nth-child(1) { animation-delay:0s; }
.goods-card:nth-child(2) { animation-delay:.05s; }
.goods-card:nth-child(3) { animation-delay:.1s; }
.goods-card:nth-child(4) { animation-delay:.15s; }
.goods-card:nth-child(5) { animation-delay:.2s; }
.goods-card:nth-child(6) { animation-delay:.25s; }
.goods-card:nth-child(7) { animation-delay:.3s; }
.goods-card:nth-child(8) { animation-delay:.35s; }
.goods-card:nth-child(9) { animation-delay:.4s; }
.goods-card:nth-child(10) { animation-delay:.45s; }

.goods-card:hover {
  transform:translateY(-6px);
  border-color:transparent;
  box-shadow:var(--shadow-lg);
}

.goods-card-link {
  display:flex;
  flex-direction:column;
  flex:1;
  color:var(--text-primary);
}

.goods-card-image {
  width:100%;
  position:relative;
  overflow:hidden;
  background:var(--bg-card-alt);
}

.goods-card-image::before {
  content:'';
  display:block;
  padding-top:100%;
}

.goods-card-img {
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s var(--ease-out);
}

.goods-card:hover .goods-card-img {
  transform:scale(1.08);
}

.goods-card-img-placeholder {
  position:absolute;
  top:0; left:0; width:100%; height:100%;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  background:linear-gradient(135deg,#f8fafc,#f1f5f9);
  color:var(--text-hint);
  font-size:13px;
  gap:6px;
}

.goods-card-img-placeholder svg {
  width:36px;
  height:36px;
  opacity:.3;
}

.goods-card-body {
  padding:14px 16px 16px;
  display:flex;
  flex-direction:column;
  flex:1;
}

.goods-card-title {
  font-size:13px;
  font-weight:500;
  line-height:1.5;
  color:var(--text-primary);
  overflow:hidden;
  text-overflow:ellipsis;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  margin-bottom:8px;
  min-height:39px;
}



.goods-card-coupon-badge {
  display:inline-flex;
  align-items:center;
  padding:2px 7px;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;
  border-radius:4px;
  font-size:10px;
  font-weight:700;
  line-height:1.5;
}

.goods-card-price {
  display:flex;
  align-items:baseline;
  gap:8px;
  flex-wrap:wrap;
  margin-bottom:6px;
}

.goods-card-price-current {
  font-size:21px;
  font-weight:700;
  color:var(--primary);
  line-height:1;
}

.goods-card-price-current::first-letter {
  font-size:13px;
  font-weight:600;
}

.goods-card-price-original {
  font-size:12px;
  color:var(--text-hint);
  text-decoration:line-through;
}

.goods-card-meta {
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:6px;
  margin-bottom:10px;
}

.goods-card-meta-tag {
  font-size:10px;
  padding:2px 8px;
  border-radius:4px;
  font-weight:700;
  white-space:nowrap;
  line-height:1.5;
}

.goods-card-meta-tag.coupon {
  background:linear-gradient(90deg,var(--primary),var(--primary-light));
  color:#fff;
}

.goods-card-meta-tag.good {
  color:#22c55e;
  background:#f0fdf4;
  border:1px solid rgba(34,197,94,.2);
}

.goods-card-meta-sales {
  font-size:11px;
  color:var(--text-hint);
}

.goods-card-action {
  margin-top:auto;
}

.goods-card-btn {
  display:flex;
  align-items:center;
  justify-content:center;
  width:100%;
  padding:11px 0;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;
  border:none;
  border-radius:var(--radius-sm);
  font-size:13px;
  font-weight:600;
  transition:all var(--dur) var(--ease-out);
  gap:6px;
  cursor:pointer;
}

.goods-card-btn:hover {
  filter:brightness(1.06);
  transform:translateY(-1px);
  box-shadow:0 6px 16px rgba(255,77,79,.3);
}

.goods-card-btn:active {
  transform:translateY(0);
}

.goods-card-btn .loading-spinner { display:none; align-items:center; gap:6px; }
.goods-card-btn .spinner {
  width:14px; height:14px;
  border:2px solid rgba(255,255,255,.4);
  border-top-color:#fff;
  border-radius:50%;
  animation:spin .7s linear infinite;
}
.goods-card-btn.loading .btn-text { display:none; }
.goods-card-btn.loading .loading-spinner { display:inline-flex; }

/* ============================================
   Article Cards
   ============================================ */
.article-grid {
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:20px;
}

@media (max-width:1200px) { .article-grid { grid-template-columns:repeat(4,1fr); } }
@media (max-width:992px) { .article-grid { grid-template-columns:repeat(3,1fr); } }
@media (max-width:640px) { .article-grid { grid-template-columns:repeat(2,1fr); gap:12px; } }

.article-card {
  background:var(--bg-card);
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid var(--border);
  transition:all .4s var(--ease-out);
  animation:fadeInUp .5s var(--ease-out) both;
}

.article-card:hover {
  transform:translateY(-6px);
  border-color:transparent;
  box-shadow:var(--shadow-lg);
}

.article-card-link {
  display:block;
  color:var(--text-primary);
}

.article-card-image {
  width:100%;
  position:relative;
  overflow:hidden;
  background:linear-gradient(135deg,var(--article-bg),#e0e7ff);
}

.article-card-image::before {
  content:'';
  display:block;
  padding-top:56.25%;
}

.article-card-img {
  position:absolute;
  top:0; left:0; width:100%; height:100%;
  object-fit:cover;
  transition:transform .5s var(--ease-out);
}

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

.article-card-body {
  padding:14px 16px 16px;
}

.article-card-title {
  font-size:14px;
  font-weight:600;
  line-height:1.5;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  margin-bottom:4px;
}

.article-card-desc {
  font-size:12px;
  color:var(--text-hint);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  margin-bottom:8px;
}

.article-card-meta {
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  color:var(--text-hint);
}

.article-card-meta-sep {
  width:3px;
  height:3px;
  border-radius:50%;
  background:var(--border);
}

.article-card-placeholder {
  position:absolute;
  inset:0;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:8px;
}

.article-card-placeholder-bg {
  width:48px;
  height:48px;
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  opacity:.5;
  transition:all .3s var(--ease-out);
}

.article-card:hover .article-card-placeholder-bg {
  opacity:.7;
  transform:scale(1.05);
}

.article-card-placeholder-icon {
  width:24px;
  height:24px;
}

.article-card-placeholder-label {
  font-size:11px;
  font-weight:600;
  color:var(--text-hint);
  background:rgba(0,0,0,.04);
  padding:2px 10px;
  border-radius:4px;
  letter-spacing:.3px;
}

.article-card-category {
  position:absolute;
  top:10px;
  left:10px;
  padding:3px 10px;
  background:rgba(99,102,241,.9);
  backdrop-filter:blur(4px);
  border-radius:6px;
  font-size:11px;
  font-weight:600;
  color:#fff;
  line-height:1.4;
}

/* ============================================
   Platform List Pages
   ============================================ */
.platform-hero {
  padding:40px 0;
  text-align:center;
}

.platform-hero.tb { background:linear-gradient(180deg,#fff5f0,#fff); }
.platform-hero.jd { background:linear-gradient(180deg,#fee9e9,#fff); }
.platform-hero.pdd { background:linear-gradient(180deg,#fff0eb,#fff); }

.platform-hero-title {
  font-size:28px;
  font-weight:800;
  margin-bottom:6px;
  color:var(--text-primary);
}

.platform-hero-desc {
  font-size:14px;
  color:var(--text-hint);
  margin-bottom:24px;
}

.platform-search {
  display:flex;
  max-width:560px;
  margin:0 auto;
  border-radius:var(--radius-xl);
  overflow:hidden;
  background:#fff;
  box-shadow:var(--shadow-md);
  transition:box-shadow var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
  border:2px solid var(--border);
}

.platform-search:focus-within {
  transform:scale(1.01);
}

.platform-search.tb { border-color:rgba(255,80,0,.2); }
.platform-search.tb:focus-within { border-color:var(--tb); box-shadow:0 0 0 4px rgba(255,80,0,.1); }
.platform-search.jd { border-color:rgba(228,57,60,.2); }
.platform-search.jd:focus-within { border-color:var(--jd); box-shadow:0 0 0 4px rgba(228,57,60,.1); }
.platform-search.pdd { border-color:rgba(224,46,36,.2); }
.platform-search.pdd:focus-within { border-color:var(--pdd); box-shadow:0 0 0 4px rgba(224,46,36,.1); }

.platform-search-input {
  flex:1;
  padding:14px 20px;
  border:none;
  font-size:15px;
  outline:none;
  color:var(--text-primary);
  background:transparent;
}

.platform-search-input::placeholder { color:var(--text-hint); }

.platform-search-btn {
  padding:14px 32px;
  border:none;
  font-size:15px;
  font-weight:600;
  color:#fff;
  transition:all var(--dur) var(--ease-out);
  white-space:nowrap;
}

.platform-search-btn.tb { background:linear-gradient(135deg,var(--tb),var(--tb-light)); }
.platform-search-btn.jd { background:linear-gradient(135deg,var(--jd),var(--jd-light)); }
.platform-search-btn.pdd { background:linear-gradient(135deg,var(--pdd),var(--pdd-light)); }
.platform-search-btn:hover { filter:brightness(1.08); }

/* ============================================
   Product Detail Pages
   ============================================ */
.detail-page { min-height:100vh; }

.detail-header-bar {
  padding:28px 0;
  text-align:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
}

.detail-header-bar h1,
.detail-header-bar h2 {
  font-size:24px;
  font-weight:700;
  color:#fff;
  margin-bottom:4px;
}

.detail-header-bar p {
  font-size:14px;
  color:rgba(255,255,255,.8);
}

.detail-container {
  max-width:1400px;
  margin:0 auto;
  padding:0 48px;
}

@media (max-width:768px) {
  .detail-container { padding:0 20px; }
}

.detail-breadcrumb {
  display:flex;
  align-items:center;
  gap:8px;
  margin:20px 0;
  font-size:13px;
  color:var(--text-hint);
  flex-wrap:wrap;
}

.detail-breadcrumb a {
  color:var(--text-hint);
  transition:color var(--dur) var(--ease-out);
}

.detail-breadcrumb a:hover { color:var(--primary); }

.detail-breadcrumb-sep {
  color:var(--border);
  font-size:10px;
}

.detail-breadcrumb-current {
  color:var(--text-primary);
  font-weight:500;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  max-width:300px;
}

.detail-card {
  background:var(--bg-card);
  border-radius:var(--radius-lg);
  border:1px solid var(--border);
  padding:40px;
  margin-bottom:24px;
  box-shadow:var(--shadow-sm);
}

@media (max-width:768px) {
  .detail-card { padding:20px; }
}

.detail-main {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
}

@media (max-width:992px) {
  .detail-main { grid-template-columns:1fr; gap:32px; }
}

.detail-image-wrap {
  position:relative;
  border-radius:var(--radius-md);
  overflow:hidden;
  background:var(--bg-card-alt);
  aspect-ratio:1;
}

.detail-main-img {
  width:100%;
  height:100%;
  object-fit:cover;
}

.detail-images-list {
  display:flex;
  flex-direction:column;
  gap:16px;
}

.detail-images-item {
  border-radius:var(--radius-md);
  overflow:hidden;
  background:var(--bg-card-alt);
}

.detail-images-item img {
  width:100%;
  display:block;
}

.detail-info {
  display:flex;
  flex-direction:column;
  gap:20px;
}

.detail-title {
  font-size:22px;
  font-weight:700;
  line-height:1.4;
  color:var(--text-primary);
}

.detail-price-box {
  background:var(--primary-bg);
  border-radius:var(--radius-md);
  padding:20px 24px;
}

.detail-price-row {
  display:flex;
  align-items:baseline;
  gap:12px;
  flex-wrap:wrap;
}

.detail-price-current {
  font-size:32px;
  font-weight:800;
  color:var(--primary);
  line-height:1;
}

.detail-price-current::first-letter {
  font-size:18px;
  font-weight:600;
}

.detail-price-original {
  font-size:14px;
  color:var(--text-hint);
  text-decoration:line-through;
}

.detail-price-tag {
  display:inline-flex;
  align-items:center;
  font-size:11px;
  padding:3px 10px;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;
  border-radius:6px;
  font-weight:700;
}

.detail-price-coupon {
  display:flex;
  align-items:center;
  gap:8px;
  margin-top:12px;
  padding-top:12px;
  border-top:1px dashed rgba(255,77,79,.2);
}

.detail-price-coupon-badge {
  display:inline-flex;
  align-items:center;
  padding:4px 10px;
  background:var(--primary);
  color:#fff;
  border-radius:6px;
  font-size:12px;
  font-weight:700;
}

.detail-price-coupon-text {
  font-size:13px;
  color:var(--primary);
  font-weight:600;
}

.detail-meta-grid {
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:12px;
}

.detail-meta-item {
  display:flex;
  align-items:center;
  gap:8px;
  padding:10px 14px;
  background:var(--bg-page);
  border-radius:var(--radius-sm);
}

.detail-meta-icon {
  width:32px;
  height:32px;
  border-radius:var(--radius-sm);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  background:var(--bg-page);
}

.detail-meta-label {
  font-size:11px;
  color:var(--text-hint);
  display:block;
  line-height:1.3;
}

.detail-meta-value {
  font-size:13px;
  font-weight:600;
  color:var(--text-primary);
  display:block;
  line-height:1.3;
}

.detail-action-btn {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  width:100%;
  padding:16px 0;
  border:none;
  border-radius:var(--radius-md);
  font-size:16px;
  font-weight:700;
  color:#fff;
  cursor:pointer;
  transition:all var(--dur) var(--ease-out);
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
}

.detail-action-btn:hover {
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(0,0,0,.2);
  filter:brightness(1.05);
}

.detail-action-btn:active {
  transform:translateY(0);
}

.detail-action-btn .loading-spinner { display:none; align-items:center; gap:8px; }
.detail-action-btn .spinner {
  width:16px; height:16px;
  border:2px solid rgba(255,255,255,.4);
  border-top-color:#fff;
  border-radius:50%;
  animation:spin .7s linear infinite;
}
.detail-action-btn.loading .btn-text { display:none; }
.detail-action-btn.loading .loading-spinner { display:inline-flex; }

.detail-section {
  background:var(--bg-card);
  border-radius:var(--radius-lg);
  border:1px solid var(--border);
  padding:32px;
  margin-bottom:24px;
  box-shadow:var(--shadow-sm);
}

.detail-section-title {
  font-size:18px;
  font-weight:700;
  margin-bottom:20px;
  color:var(--text-primary);
  display:flex;
  align-items:center;
  gap:8px;
}

.detail-section-title::before {
  content:'';
  width:4px;
  height:20px;
  border-radius:2px;
  background:var(--primary);
}

.detail-section-body {
  font-size:14px;
  line-height:1.8;
  color:var(--text-secondary);
}

.detail-related {
  margin-bottom:40px;
}

.detail-related-header {
  font-size:18px;
  font-weight:700;
  margin-bottom:20px;
  color:var(--text-primary);
}

.detail-related-grid {
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:16px;
}

@media (max-width:1200px) { .detail-related-grid { grid-template-columns:repeat(4,1fr); } }
@media (max-width:992px) { .detail-related-grid { grid-template-columns:repeat(3,1fr); } }
@media (max-width:640px) { .detail-related-grid { grid-template-columns:repeat(2,1fr); gap:12px; } }

/* ============================================
   Article Pages
   ============================================ */
.article-page { min-height:100vh; }

.article-hero {
  background:linear-gradient(135deg,var(--article),var(--article-light));
  padding:60px 0;
  text-align:center;
  color:#fff;
}

.article-hero-title {
  font-size:32px;
  font-weight:800;
  margin-bottom:8px;
}

.article-hero-desc {
  font-size:15px;
  opacity:.85;
}

.article-content {
  padding:48px 0;
}

.article-detail-hero {
  background:linear-gradient(135deg,var(--article),var(--article-light));
  padding:52px 0;
  text-align:center;
  color:#fff;
}

.article-detail-hero-title {
  font-size:30px;
  font-weight:700;
  margin-bottom:8px;
  line-height:1.3;
}

.article-detail-hero-meta {
  display:flex;
  align-items:center;
  justify-content:center;
  gap:12px;
  font-size:14px;
  opacity:.85;
}

.article-detail-body {
  background:var(--bg-card);
  margin:24px 0;
  padding:48px;
  border-radius:var(--radius-lg);
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
}

@media (max-width:768px) {
  .article-detail-body { padding:24px; }
}

.article-detail-content {
  font-size:16px;
  line-height:1.85;
  color:var(--text-primary);
}

.article-detail-content img {
  max-width:100%;
  height:auto;
  border-radius:var(--radius-md);
  margin:24px 0;
}

.article-detail-content p {
  margin-bottom:20px;
}

.article-detail-content h2,
.article-detail-content h3 {
  margin-top:32px;
  margin-bottom:16px;
  font-weight:700;
  color:var(--text-primary);
}

.article-detail-content h2 { font-size:22px; }
.article-detail-content h3 { font-size:18px; }

.article-detail-content ul,
.article-detail-content ol {
  margin-bottom:20px;
  padding-left:24px;
}

.article-detail-content li {
  margin-bottom:8px;
}

.article-detail-content blockquote {
  border-left:4px solid var(--article);
  padding:12px 20px;
  margin:20px 0;
  background:var(--article-bg);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--text-secondary);
}

/* ============================================
   Pagination
   ============================================ */
.pagination {
  display:flex;
  justify-content:center;
  align-items:center;
  gap:4px;
  margin-top:48px;
  padding:24px 0;
}

.page-btn {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:40px;
  height:40px;
  padding:0 14px;
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  color:var(--text-secondary);
  font-size:14px;
  font-weight:500;
  transition:all var(--dur) var(--ease-out);
  cursor:pointer;
}

.page-btn:hover {
  background:var(--article-bg);
  border-color:var(--article);
  color:var(--article);
}

.page-btn.active {
  background:linear-gradient(135deg,var(--article),var(--article-light));
  border-color:transparent;
  color:#fff;
  font-weight:600;
  box-shadow:0 2px 8px rgba(99,102,241,.3);
}

.page-btn.disabled {
  opacity:.4;
  pointer-events:none;
}

.page-ellipsis {
  padding:0 6px;
  color:var(--text-hint);
  font-size:14px;
  letter-spacing:2px;
}

/* ============================================
   Empty State
   ============================================ */
.empty-state {
  text-align:center;
  padding:80px 20px;
  background:var(--bg-card);
  border-radius:var(--radius-lg);
  border:1px solid var(--border);
}

.empty-state-icon {
  width:64px;
  height:64px;
  margin:0 auto 20px;
  background:var(--bg-page);
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:28px;
}

.empty-state-title {
  font-size:20px;
  font-weight:700;
  color:var(--text-primary);
  margin-bottom:8px;
}

.empty-state-desc {
  font-size:14px;
  color:var(--text-hint);
  margin-bottom:24px;
}

.empty-state-btn {
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:12px 32px;
  background:linear-gradient(135deg,var(--article),var(--article-light));
  color:#fff;
  border:none;
  border-radius:30px;
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:all var(--dur) var(--ease-out);
}

.empty-state-btn:hover {
  transform:translateY(-2px);
  box-shadow:0 6px 20px rgba(99,102,241,.3);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background:var(--text-primary);
  color:rgba(255,255,255,.8);
  margin-top:64px;
  padding:56px 0 0;
}

.footer-grid {
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:48px;
  max-width:1400px;
  margin:0 auto;
  padding:0 48px;
}

@media (max-width:992px) {
  .footer-grid { grid-template-columns:1fr 1fr; gap:32px; }
}
@media (max-width:640px) {
  .footer-grid { grid-template-columns:1fr; gap:24px; padding:0 20px; }
}

.footer-brand h2 {
  font-size:22px;
  font-weight:800;
  margin-bottom:8px;
  background:linear-gradient(90deg,#fff,rgba(255,255,255,.7));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}

.footer-brand p {
  font-size:13px;
  color:rgba(255,255,255,.5);
  margin-bottom:16px;
}

.footer-desc {
  font-size:14px;
  line-height:1.7;
  color:rgba(255,255,255,.55);
}

.footer-col-title {
  font-size:13px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
  text-transform:uppercase;
  letter-spacing:.5px;
}

.footer-links {
  display:flex;
  flex-direction:column;
  gap:10px;
}

.footer-link {
  font-size:14px;
  color:rgba(255,255,255,.55);
  transition:all var(--dur) var(--ease-out);
}

.footer-link:hover {
  color:#fff;
  padding-left:4px;
}

.footer-qrcode-section {
  text-align:center;
}

.footer-qrcode {
  width:120px;
  height:120px;
  border-radius:var(--radius-md);
  margin:0 auto 12px;
  overflow:hidden;
  border:2px solid rgba(255,255,255,.1);
}

.footer-qrcode img {
  width:100%;
  height:100%;
  object-fit:cover;
}

.footer-qrcode-text {
  font-size:12px;
  color:rgba(255,255,255,.5);
}

.footer-bottom {
  margin-top:40px;
  padding:20px 48px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  max-width:1400px;
  margin-left:auto;
  margin-right:auto;
}

@media (max-width:640px) {
  .footer-bottom { padding:20px; flex-direction:column; text-align:center; }
}

.footer-copyright {
  font-size:13px;
  color:rgba(255,255,255,.4);
}

.footer-beian {
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  color:rgba(255,255,255,.35);
  flex-wrap:wrap;
}

.beian-link {
  display:inline-flex;
  align-items:center;
  gap:4px;
  color:rgba(255,255,255,.35);
  transition:color var(--dur) var(--ease-out);
}

.beian-link:hover { color:rgba(255,255,255,.6); }

.beian-icon {
  width:14px;
  height:14px;
  border-radius:2px;
}

.beian-sep {
  color:rgba(255,255,255,.15);
}

/* ============================================
   Error Page
   ============================================ */
.error-page {
  min-height:70vh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:40px 20px;
}

.error-card {
  text-align:center;
  background:var(--bg-card);
  border-radius:var(--radius-lg);
  border:1px solid var(--border);
  padding:60px 48px;
  box-shadow:var(--shadow-lg);
  max-width:480px;
  width:100%;
}

.error-code {
  font-size:80px;
  font-weight:800;
  line-height:1;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  margin-bottom:16px;
}

.error-title {
  font-size:24px;
  font-weight:700;
  color:var(--text-primary);
  margin-bottom:8px;
}

.error-message {
  font-size:15px;
  color:var(--text-hint);
  margin-bottom:32px;
}

.error-btn {
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:14px 36px;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;
  border:none;
  border-radius:30px;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:all var(--dur) var(--ease-out);
}

.error-btn:hover {
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(255,77,79,.3);
}

/* ============================================
   Animations
   ============================================ */
.fade-in-up {
  animation:fadeInUp .6s var(--ease-out) both;
}

.fade-in {
  animation:fadeIn .6s var(--ease-out) both;
}

.delay-1 { animation-delay:.1s; }
.delay-2 { animation-delay:.2s; }
.delay-3 { animation-delay:.3s; }
.delay-4 { animation-delay:.4s; }
.delay-5 { animation-delay:.5s; }

/* ============================================
   Scrollbar
   ============================================ */
::-webkit-scrollbar {
  width:8px;
  height:8px;
}

::-webkit-scrollbar-track {
  background:var(--bg-page);
}

::-webkit-scrollbar-thumb {
  background:var(--border);
  border-radius:4px;
  transition:background var(--dur) var(--ease-out);
}

::-webkit-scrollbar-thumb:hover {
  background:var(--text-hint);
}

/* ============================================
   Selection
   ============================================ */
::selection {
  background:rgba(255,77,79,.2);
  color:var(--text-primary);
}