:root {
  --primary: #1a4d45;
  --primary-dark: #123831;
  --primary-light: #2a7a6b;
  --accent: #4db6a8;
  --bg: #f7f9f9;
  --bg-dark: #0d2420;
  --text: #1f2937;
  --text-light: #6b7280;
  --white: #ffffff;
  --border: rgba(26, 77, 69, 0.12);
  --shadow: 0 10px 40px rgba(13, 36, 32, 0.12);
  --radius: 16px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}
.container { width: min(1200px, 94%); margin: 0 auto; }

/* ===== Header ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: box-shadow .3s;
}
.site-header.scrolled { box-shadow: var(--shadow); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-logo { width: 44px; height: 44px; object-fit: cover; border-radius: 8px; box-shadow: 0 2px 8px rgba(26,77,69,0.2); }
.brand-text { display: flex; flex-direction: column; }
.brand-name { font-size: 16px; font-weight: 700; color: var(--primary); letter-spacing: 0.02em; line-height: 1.2; }
.brand-name-en { font-size: 10px; font-weight: 500; color: var(--text-light); letter-spacing: 0.04em; }
.main-nav { display: flex; gap: 32px; }
.main-nav a { text-decoration: none; color: var(--text); font-size: 15px; font-weight: 500; position: relative; transition: color .2s; }
.main-nav a:hover { color: var(--primary); }
.main-nav a::after { content: ''; position: absolute; left: 0; bottom: -6px; width: 0; height: 2px; background: var(--primary); transition: width .3s; }
.main-nav a:hover::after { width: 100%; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--primary); transition: .3s; }

/* ===== Language Toggle ===== */
.nav-right-wrap { display: flex; align-items: center; gap: 20px; }
.lang-toggle {
  padding: 6px 14px; border-radius: 999px;
  border: 1.5px solid var(--border);
  background: rgba(26, 77, 69, 0.06);
  color: var(--primary); font-size: 13px;
  font-weight: 700; cursor: pointer;
  transition: all .2s; letter-spacing: 0.05em;
  white-space: nowrap;
}
.lang-toggle:hover {
  background: var(--primary); color: var(--white);
  border-color: var(--primary);
}

/* ===== Hero ===== */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; background: var(--bg-dark); color: var(--white); overflow: hidden; padding: 120px 0 80px; }
.hero-bg { position: absolute; inset: 0; background: radial-gradient(circle at 20% 30%, rgba(77,182,168,0.15) 0%, transparent 40%), radial-gradient(circle at 80% 70%, rgba(26,77,69,0.6) 0%, transparent 45%), linear-gradient(135deg, var(--bg-dark) 0%, var(--primary) 100%); opacity: .92; }
.hero-bg::before { content: ''; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px); background-size: 60px 60px; }
.hero-content { position: relative; z-index: 2; max-width: 800px; }
.hero-title { font-size: clamp(42px, 8vw, 76px); font-weight: 800; line-height: 1.05; letter-spacing: -0.02em; margin-bottom: 20px; background: linear-gradient(135deg, #fff 0%, var(--accent) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-subtitle { font-size: clamp(18px, 3vw, 24px); color: var(--accent); font-weight: 600; margin-bottom: 16px; }
.hero-desc { font-size: 18px; color: rgba(255,255,255,0.82); max-width: 620px; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 14px 32px; border-radius: 999px; font-size: 15px; font-weight: 600; text-decoration: none; transition: transform .2s, box-shadow .2s, background .2s; cursor: pointer; border: none; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--accent); color: var(--bg-dark); box-shadow: 0 8px 24px rgba(77,182,168,0.35); }
.btn-primary:hover { background: #5ec9bb; box-shadow: 0 10px 28px rgba(77,182,168,0.45); }
.btn-outline { background: transparent; color: var(--white); border: 1.5px solid rgba(255,255,255,0.5); }
.btn-outline:hover { background: rgba(255,255,255,0.08); border-color: var(--white); }

/* ===== Section Common ===== */
.section { padding: 100px 0; }
.section-head { text-align: center; margin-bottom: 60px; }
.section-title { font-size: clamp(28px, 4vw, 40px); font-weight: 800; color: var(--primary); margin-bottom: 6px; }
.section-title-en { font-size: 14px; color: var(--text-light); letter-spacing: 0.08em; text-transform: uppercase; }

/* ===== Intro ===== */
.intro { background: var(--bg); }
.intro-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 28px; }
.intro-card { background: var(--white); border-radius: var(--radius); padding: 40px; box-shadow: var(--shadow); border: 1px solid var(--border); }
.intro-main h3 { font-size: 24px; color: var(--primary); margin-bottom: 20px; }
.intro-main p { color: var(--text-light); margin-bottom: 16px; }
.intro-main p:last-child { margin-bottom: 0; }
.intro-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.stat-item { text-align: center; }
.stat-num { font-size: 42px; font-weight: 800; color: var(--primary); line-height: 1; }
.stat-plus { font-size: 22px; font-weight: 700; color: var(--primary-light); }
.stat-label { display: block; margin-top: 8px; color: var(--text-light); font-size: 14px; }

/* ===== Products Section ===== */
.products { background: linear-gradient(180deg, var(--primary) 0%, var(--bg-dark) 100%); color: var(--white); }
.section-head.light .section-title { color: var(--white); }
.section-head.light .section-title-en { color: rgba(255,255,255,0.6); }

/* ===== Product Toolbar ===== */
.product-toolbar { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.search-box { position: relative; flex: 1; min-width: 180px; max-width: 360px; }
.search-icon { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); width: 18px; height: 18px; color: rgba(255,255,255,0.5); pointer-events: none; }
.search-box input { width: 100%; padding: 12px 18px 12px 44px; border-radius: 999px; border: 1px solid rgba(255,255,255,0.2); background: rgba(255,255,255,0.08); color: var(--white); font-size: 14px; font-family: inherit; outline: none; transition: border-color .2s, background .2s; }
.search-box input::placeholder { color: rgba(255,255,255,0.5); }
.search-box input:focus { border-color: var(--accent); background: rgba(255,255,255,0.12); }
.product-count { font-size: 13px; color: rgba(255,255,255,0.5); white-space: nowrap; }
.sort-box { margin-left: auto; }
.sort-box select { padding: 12px 18px; border-radius: 999px; border: 1px solid rgba(255,255,255,0.2); background: rgba(255,255,255,0.08); color: var(--white); font-size: 14px; font-family: inherit; outline: none; cursor: pointer; }
.sort-box select option { color: var(--text); background: var(--white); }

/* ===== Category Tabs ===== */
.category-tabs { display: flex; gap: 10px; margin-bottom: 32px; overflow-x: auto; padding-bottom: 8px; -webkit-overflow-scrolling: touch; scrollbar-width: thin; scrollbar-color: rgba(255,255,255,0.2) transparent; }
.category-tabs::-webkit-scrollbar { height: 4px; }
.category-tabs::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 4px; }
.category-tab { padding: 8px 20px; border-radius: 999px; border: 1px solid rgba(255,255,255,0.15); background: rgba(255,255,255,0.05); color: rgba(255,255,255,0.7); font-size: 14px; font-weight: 500; white-space: nowrap; cursor: pointer; transition: all .25s; }
.category-tab:hover { background: rgba(255,255,255,0.12); color: var(--white); }
.category-tab.active { background: var(--accent); color: var(--bg-dark); border-color: var(--accent); font-weight: 600; }

/* ===== Filter Panel ===== */
.filter-panel { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.1); border-radius: 16px; padding: 24px; margin-bottom: 24px; }
.filter-row { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 16px; }
.filter-row:last-of-type { margin-bottom: 0; }
.filter-label { flex-shrink: 0; width: 48px; padding-top: 6px; font-size: 13px; font-weight: 600; color: var(--accent); letter-spacing: 0.05em; }
.filter-chips { display: flex; flex-wrap: wrap; gap: 8px; flex: 1; }
.filter-chip { padding: 5px 14px; border-radius: 999px; border: 1px solid rgba(255,255,255,0.15); background: rgba(255,255,255,0.05); color: rgba(255,255,255,0.7); font-size: 13px; font-weight: 500; cursor: pointer; transition: all .2s; white-space: nowrap; }
.filter-chip:hover { background: rgba(255,255,255,0.12); color: var(--white); border-color: rgba(255,255,255,0.3); }
.filter-chip.active { background: var(--accent); color: var(--bg-dark); border-color: var(--accent); font-weight: 600; }
.filter-chip-unlimited { border-style: dashed; border-color: rgba(255,255,255,0.35); background: rgba(255,255,255,0.02); color: rgba(255,255,255,0.55); }
.filter-chip-unlimited:hover { background: rgba(255,255,255,0.08); color: var(--white); border-color: rgba(255,255,255,0.45); }
.filter-chip-group-label { width: 100%; padding: 10px 0 4px; font-size: 11px; font-weight: 600; color: var(--accent); opacity: 0.9; letter-spacing: 0.08em; text-transform: uppercase; }
.filter-actions { margin-top: 16px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,0.08); }
.btn-clear-filters { background: none; border: 1px solid rgba(255,255,255,0.2); color: rgba(255,255,255,0.6); padding: 6px 18px; border-radius: 999px; font-size: 13px; cursor: pointer; transition: all .2s; }
.btn-clear-filters:hover { background: rgba(255,255,255,0.08); color: var(--white); border-color: rgba(255,255,255,0.4); }

/* ===== Active Filters Bar ===== */
.active-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; min-height: 0; }
.active-filters:empty { display: none; }
.active-filter-tag { display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px 4px 14px; border-radius: 999px; background: rgba(77,182,168,0.15); border: 1px solid rgba(77,182,168,0.3); color: var(--accent); font-size: 12px; font-weight: 500; }
.active-filter-tag .remove { cursor: pointer; opacity: 0.7; transition: opacity .2s; font-size: 16px; line-height: 1; }
.active-filter-tag .remove:hover { opacity: 1; }

/* ===== Product Grid ===== */
.product-list-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.product-item { background: rgba(255,255,255,0.06); backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,0.1); border-radius: 12px; overflow: hidden; cursor: pointer; transition: transform .3s, border-color .3s, background .3s; }
.product-item:hover { transform: translateY(-6px); border-color: rgba(255,255,255,0.25); background: rgba(255,255,255,0.1); }
.product-item-img { position: relative; aspect-ratio: 1; overflow: hidden; background: rgba(0,0,0,0.2); }
.product-item-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.product-item:hover .product-item-img img { transform: scale(1.08); }
.product-item-id { position: absolute; top: 8px; left: 8px; padding: 3px 10px; border-radius: 6px; background: rgba(0,0,0,0.65); color: var(--white); font-size: 11px; font-weight: 600; letter-spacing: 0.03em; }
.product-item-info { padding: 14px 16px; }
.product-item-name { font-size: 14px; font-weight: 500; color: var(--white); margin-bottom: 8px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.product-item-meta { display: flex; justify-content: space-between; align-items: center; }
.product-item-price { font-size: 18px; font-weight: 700; color: var(--accent); }
.product-item-price span { font-size: 12px; font-weight: 400; color: rgba(255,255,255,0.5); }
.product-item-sold { font-size: 12px; color: rgba(255,255,255,0.5); }
.product-item-tags { display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap; }
.product-tag { padding: 2px 8px; border-radius: 4px; background: rgba(77,182,168,0.15); color: var(--accent); font-size: 11px; font-weight: 500; }

/* ===== No Results ===== */
.no-results { text-align: center; padding: 60px 20px; color: rgba(255,255,255,0.5); }
.no-results p { font-size: 16px; }

/* ===== Product Grid Wrap & Loading ===== */
.product-grid-wrap { position: relative; min-height: 200px; }
.product-loading {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 12px;
  background: rgba(13, 36, 32, 0.4);
  backdrop-filter: blur(4px);
  border-radius: 12px; z-index: 10;
}
.loading-spinner {
  width: 40px; height: 40px;
  border: 3px solid rgba(255,255,255,0.15);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.product-loading span { color: rgba(255,255,255,0.7); font-size: 14px; }

/* ===== Page Size Selector ===== */
.page-size-box { display: flex; align-items: center; gap: 6px; }
.page-size-label { font-size: 13px; color: rgba(255,255,255,0.5); white-space: nowrap; }
.page-size-box select {
  padding: 12px 14px; border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.08);
  color: var(--white); font-size: 14px;
  font-family: inherit; outline: none; cursor: pointer;
}
.page-size-box select option { color: var(--text); background: var(--white); }

/* ===== View Toggle ===== */
.view-toggle { display: flex; gap: 4px; padding: 4px; border-radius: 999px; border: 1px solid rgba(255,255,255,0.15); background: rgba(255,255,255,0.05); }
.view-btn { display: flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 999px; border: none; background: transparent; color: rgba(255,255,255,0.5); cursor: pointer; transition: all .2s; }
.view-btn:hover { background: rgba(255,255,255,0.1); color: rgba(255,255,255,0.8); }
.view-btn.active { background: var(--accent); color: var(--bg-dark); }
.view-btn svg { width: 18px; height: 18px; }

/* ===== Table View ===== */
.data-table-wrap { overflow-x: auto; border-radius: 12px; border: 1px solid rgba(255,255,255,0.1); background: rgba(255,255,255,0.03); }
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table thead { background: rgba(255,255,255,0.06); }
.data-table th { padding: 14px 16px; text-align: left; font-weight: 600; color: var(--accent); font-size: 12px; letter-spacing: 0.05em; white-space: nowrap; border-bottom: 1px solid rgba(255,255,255,0.1); }
.data-table-row { cursor: pointer; transition: background .2s; border-bottom: 1px solid rgba(255,255,255,0.06); }
.data-table-row:last-child { border-bottom: none; }
.data-table-row:hover { background: rgba(77,182,168,0.08); }
.data-table td { padding: 12px 16px; color: rgba(255,255,255,0.8); vertical-align: middle; }
.table-thumb { width: 48px; height: 48px; border-radius: 8px; object-fit: cover; border: 1px solid rgba(255,255,255,0.1); }
.table-id { font-family: monospace; font-size: 12px; color: rgba(255,255,255,0.6); }
.table-unit { font-size: 11px; color: rgba(255,255,255,0.4); }
.col-img { width: 64px; text-align: center; }
.col-id { width: 120px; }
.col-name { min-width: 140px; }
.col-cat { white-space: nowrap; }
.col-spec, .col-mat, .col-color { white-space: nowrap; }
.col-price { text-align: right; white-space: nowrap; font-weight: 600; color: var(--accent); }

/* ===== List View ===== */
.product-list-view { display: flex; flex-direction: column; gap: 12px; }
.list-item { display: flex; align-items: center; gap: 16px; padding: 12px 16px; border-radius: 12px; border: 1px solid rgba(255,255,255,0.08); background: rgba(255,255,255,0.03); cursor: pointer; transition: all .2s; }
.list-item:hover { background: rgba(77,182,168,0.06); border-color: rgba(77,182,168,0.2); transform: translateX(4px); }
.list-item-img { flex-shrink: 0; width: 72px; height: 72px; border-radius: 8px; overflow: hidden; border: 1px solid rgba(255,255,255,0.1); }
.list-item-img img { width: 100%; height: 100%; object-fit: cover; }
.list-item-main { flex: 1; min-width: 0; }
.list-item-name { font-size: 14px; font-weight: 500; color: var(--white); margin-bottom: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.list-item-meta { display: flex; flex-wrap: wrap; gap: 6px 12px; font-size: 12px; color: rgba(255,255,255,0.5); }
.list-item-id { font-family: monospace; }
.list-item-tags { display: flex; gap: 4px; margin-top: 6px; }
.list-tag { padding: 2px 8px; border-radius: 4px; background: rgba(77,182,168,0.12); color: var(--accent); font-size: 11px; font-weight: 500; }
.list-item-right { flex-shrink: 0; text-align: right; }
.list-item-price { font-size: 18px; font-weight: 700; color: var(--accent); }
.list-item-price span { font-size: 12px; font-weight: 400; color: rgba(255,255,255,0.4); }
.list-item-sold { font-size: 12px; color: rgba(255,255,255,0.4); margin-top: 2px; }

/* ===== Pagination ===== */
.pagination {
  display: flex; align-items: center; justify-content: center;
  gap: 6px; margin-top: 40px; flex-wrap: wrap;
}
.page-btn {
  min-width: 38px; height: 38px; padding: 0 10px;
  border-radius: 10px; border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.05); color: rgba(255,255,255,0.7);
  font-size: 14px; font-weight: 500; cursor: pointer;
  transition: all .2s; display: inline-flex;
  align-items: center; justify-content: center;
}
.page-btn:hover:not(.disabled):not(.active) {
  background: rgba(255,255,255,0.12); color: var(--white);
  border-color: rgba(255,255,255,0.3);
}
.page-btn.active {
  background: var(--accent); color: var(--bg-dark);
  border-color: var(--accent); font-weight: 700;
}
.page-btn.disabled { opacity: 0.35; cursor: not-allowed; }
.page-nav { font-size: 18px; }
.page-ellipsis {
  color: rgba(255,255,255,0.4); font-size: 14px;
  padding: 0 4px; user-select: none;
}
.page-info {
  margin-left: 12px; font-size: 13px;
  color: rgba(255,255,255,0.5); white-space: nowrap;
}

/* ===== Product Modal ===== */
.product-modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.7); backdrop-filter: blur(6px); z-index: 2000; display: none; align-items: center; justify-content: center; padding: 20px; }
.product-modal-overlay.open { display: flex; }
.product-modal { background: var(--white); border-radius: 20px; max-width: 800px; width: 100%; max-height: 90vh; overflow-y: auto; position: relative; box-shadow: 0 20px 60px rgba(0,0,0,0.3); }
.product-modal-close { position: absolute; top: 16px; right: 16px; width: 36px; height: 36px; border-radius: 50%; border: none; background: rgba(0,0,0,0.06); color: var(--text); font-size: 22px; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: background .2s; z-index: 10; }
.product-modal-close:hover { background: rgba(0,0,0,0.12); }
.modal-body { display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
.modal-img-section { padding: 30px; background: var(--bg); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; }
.modal-main-img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 12px; box-shadow: 0 4px 20px rgba(0,0,0,0.1); }
.modal-thumbs { display: flex; gap: 8px; }
.modal-thumb { width: 56px; height: 56px; object-fit: cover; border-radius: 8px; cursor: pointer; border: 2px solid transparent; transition: border-color .2s; }
.modal-thumb.active { border-color: var(--accent); }
.modal-thumb:hover { border-color: var(--primary-light); }
.modal-info-section { padding: 30px; }
.modal-product-name { font-size: 20px; font-weight: 700; color: var(--text); margin-bottom: 12px; line-height: 1.4; }
.modal-product-id { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; flex-wrap: wrap; }
.modal-id-label { font-size: 13px; color: var(--text-light); }
.modal-id-value { font-family: "Courier New", monospace; font-size: 16px; font-weight: 700; color: var(--primary); background: rgba(26,77,69,0.06); padding: 4px 12px; border-radius: 6px; }
.modal-copy-btn { padding: 4px 12px; border-radius: 6px; border: 1px solid var(--border); background: var(--white); color: var(--primary); font-size: 12px; cursor: pointer; transition: background .2s; }
.modal-copy-btn:hover { background: rgba(26,77,69,0.06); }
.modal-tags { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }
.modal-tag { padding: 4px 12px; border-radius: 999px; background: rgba(26,77,69,0.08); color: var(--primary); font-size: 12px; font-weight: 500; }
.modal-price-row { display: flex; align-items: baseline; gap: 8px; margin-bottom: 16px; }
.modal-price { font-size: 32px; font-weight: 800; color: var(--primary); }
.modal-unit { font-size: 14px; color: var(--text-light); }
.modal-promo { padding: 8px 14px; background: rgba(26,77,69,0.06); border-radius: 8px; color: var(--primary); font-size: 13px; margin-bottom: 20px; }
.modal-info-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding-top: 16px; border-top: 1px solid var(--border); }
.modal-info-item { display: flex; flex-direction: column; }
.modal-info-item strong { font-size: 12px; color: var(--text-light); margin-bottom: 2px; }
.modal-info-item span { font-size: 15px; color: var(--text); font-weight: 500; }
.modal-desc { padding-top: 16px; margin-top: 16px; border-top: 1px solid var(--border); font-size: 14px; color: var(--text-light); line-height: 1.7; }
.modal-breadcrumb { font-size: 12px; color: var(--text-light); margin-bottom: 8px; letter-spacing: 0.03em; }
.modal-breadcrumb span { color: var(--primary); font-weight: 600; }

/* ===== About Full ===== */
.about-full { background: var(--bg); }
.about-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 60px; align-items: center; }
.about-text h2 { font-size: 36px; font-weight: 800; color: var(--primary); margin-bottom: 6px; }
.about-subtitle { color: var(--text-light); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 24px; }
.about-text p { color: var(--text-light); margin-bottom: 18px; font-size: 16px; }
.about-list { list-style: none; margin-top: 28px; }
.about-list li { padding: 10px 0 10px 28px; position: relative; color: var(--text); font-weight: 500; }
.about-list li::before { content: ''; position: absolute; left: 0; top: 16px; width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px rgba(77,182,168,0.2); }
.about-visual { display: flex; justify-content: center; }
.about-badge { width: 260px; height: 260px; border-radius: 50%; background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%); color: var(--white); display: flex; flex-direction: column; align-items: center; justify-content: center; box-shadow: var(--shadow); text-align: center; }
.badge-year { font-size: 14px; opacity: 0.8; letter-spacing: 0.1em; }
.badge-num { font-size: 72px; font-weight: 800; line-height: 1; margin: 4px 0; }
.badge-text { font-size: 16px; letter-spacing: 0.1em; }

/* ===== Contact ===== */
.contact { background: var(--bg-dark); color: var(--white); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.contact-info h3 { font-size: 26px; margin-bottom: 4px; }
.contact-en { color: var(--accent); font-size: 13px; letter-spacing: 0.05em; margin-bottom: 28px; }
.contact-item { display: flex; flex-direction: column; padding: 16px 0; border-bottom: 1px solid rgba(255,255,255,0.08); }
.contact-item strong { color: var(--accent); font-size: 13px; margin-bottom: 4px; letter-spacing: 0.05em; }
.contact-item span { color: rgba(255,255,255,0.85); }
.contact-form { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius); padding: 40px; }
.contact-form h3 { margin-bottom: 24px; }
.contact-form input, .contact-form textarea { width: 100%; padding: 14px 18px; margin-bottom: 16px; border-radius: 10px; border: 1px solid rgba(255,255,255,0.15); background: rgba(255,255,255,0.06); color: var(--white); font-size: 15px; font-family: inherit; outline: none; transition: border-color .2s, background .2s; }
.contact-form input::placeholder, .contact-form textarea::placeholder { color: rgba(255,255,255,0.45); }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--accent); background: rgba(255,255,255,0.09); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-tip { margin-top: 12px; font-size: 13px; color: rgba(255,255,255,0.5); }

/* ===== Footer ===== */
.site-footer { background: #081816; color: rgba(255,255,255,0.7); padding: 50px 0 24px; }
.footer-main { display: flex; justify-content: space-between; align-items: flex-start; gap: 40px; padding-bottom: 30px; border-bottom: 1px solid rgba(255,255,255,0.08); flex-wrap: wrap; }
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-logo { width: 48px; height: 48px; border-radius: 8px; object-fit: cover; }
.footer-brand strong { display: block; color: var(--white); font-size: 16px; }
.footer-brand span { font-size: 12px; color: var(--text-light); }
.footer-info p { margin-bottom: 8px; font-size: 14px; }
.footer-info strong { color: var(--accent); }
.footer-bottom { padding-top: 24px; text-align: center; font-size: 13px; color: rgba(255,255,255,0.45); }
.icp-line { margin-top: 8px; }
.icp-line a { color: rgba(255,255,255,0.45); text-decoration: none; transition: color .2s; }
.icp-line a:hover { color: rgba(255,255,255,0.8); }
.ghs-line a { display: inline-flex; align-items: center; gap: 5px; }
.ghs-line img { width: 14px; height: 14px; display: block; }

/* ===== Back to Top ===== */
.back-to-top { position: fixed; right: 24px; bottom: 24px; width: 46px; height: 46px; border-radius: 50%; background: var(--primary); color: var(--white); display: flex; align-items: center; justify-content: center; font-size: 20px; text-decoration: none; opacity: 0; pointer-events: none; transition: opacity .3s, transform .3s; box-shadow: var(--shadow); z-index: 999; }
.back-to-top.show { opacity: 1; pointer-events: auto; }
.back-to-top:hover { transform: translateY(-3px); background: var(--primary-light); }

/* ===== Responsive ===== */
@media (max-width: 992px) {
  .intro-grid, .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .about-visual { order: -1; }
  .about-badge { width: 200px; height: 200px; }
  .badge-num { font-size: 56px; }
  .product-list-grid { grid-template-columns: repeat(3, 1fr); }
  .modal-body { grid-template-columns: 1fr; }
  .modal-img-section { padding: 20px; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .main-nav { position: fixed; top: 72px; left: 0; right: 0; background: rgba(255,255,255,0.98); flex-direction: column; padding: 20px 0; gap: 0; border-bottom: 1px solid var(--border); transform: translateY(-150%); opacity: 0; transition: transform .35s, opacity .35s; pointer-events: none; }
  .main-nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .main-nav a { padding: 14px 24px; border-bottom: 1px solid var(--border); }
  .main-nav a:last-child { border-bottom: none; }
  .brand-name { font-size: 14px; }
  .brand-name-en { font-size: 9px; }
  .brand-logo { width: 38px; height: 38px; }
  .section { padding: 72px 0; }
  .hero { padding: 110px 0 60px; }
  .hero-actions { justify-content: center; }
  .intro-card { padding: 28px; }
  .intro-stats { grid-template-columns: 1fr 1fr; }
  .product-list-grid { grid-template-columns: repeat(2, 1fr); }
  .product-toolbar { flex-direction: column; align-items: stretch; }
  .search-box { max-width: 100%; }
  .sort-box { margin-left: 0; }
  .product-count { text-align: center; }
  .view-toggle { align-self: center; }
  .filter-panel { padding: 16px; }
  .filter-row { flex-direction: column; gap: 8px; }
  .filter-label { width: auto; padding-top: 0; }
  .contact-form { padding: 28px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-main { flex-direction: column; gap: 24px; }
  .modal-info-section { padding: 20px; }
  .modal-info-list { grid-template-columns: 1fr; }
  .pagination { gap: 4px; margin-top: 28px; }
  .page-btn { min-width: 34px; height: 34px; font-size: 13px; }
  .page-info { margin-left: 0; width: 100%; text-align: center; margin-top: 4px; }
  .page-size-box { justify-content: center; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 38px; }
  .hero-desc { font-size: 16px; }
  .section-title { font-size: 26px; }
  .stat-num { font-size: 34px; }
  .product-list-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .product-item-info { padding: 10px 12px; }
  .product-item-name { font-size: 13px; }
  .product-item-price { font-size: 16px; }
  .list-item-img { width: 56px; height: 56px; }
  .list-item-name { font-size: 13px; }
  .list-item-price { font-size: 16px; }
  .list-item-meta { font-size: 11px; gap: 4px 8px; }
  .data-table { font-size: 12px; }
  .data-table th, .data-table td { padding: 10px 10px; }
  .table-thumb { width: 36px; height: 36px; }
  .col-cat, .col-mat, .col-color { display: none; }
}