/* ===== Extracted stylesheet block 1 ===== */
:root {
      --grad-start: #0071e3;
      --grad-end: #0077ed;
      --grad: linear-gradient(135deg, var(--grad-start), var(--grad-end));
      --container-max: 1360px;
      --bg: #f5f5f7;
      --surface: #ffffff;
      --surface-2: #fbfbfd;
      --border: #d2d2d7;
      --border-hover: #0071e3;
      --text: #1d1d1f;
      --text-2: #424245;
      --muted: #a1a1a6;
      --success: #34c759;
      --danger: #ff3b30;
      --warning: #ff9f0a;
      --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.04);
      --shadow-glow: 0 0 15px rgba(0, 113, 227, 0.15);
      --radius: 18px;
      --radius-sm: 10px;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
      background: var(--bg);
      color: var(--text);
      min-height: 100vh;
      line-height: 1.6;
      font-size: 15px;
    }

    .container {
      width: min(var(--container-max), calc(100% - 40px));
      margin: 0 auto;
      padding: clamp(28px, 3vw, 40px) 0 clamp(56px, 5vw, 72px);
    }

    /* ── HERO ── */
    .hero {
      background: #ffffff;
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: clamp(32px, 4vw, 48px) clamp(24px, 4vw, 40px);
      box-shadow: var(--shadow-card);
      margin-bottom: 24px;
      position: relative;
      overflow: hidden;
    }

    .hero::before {
      content: '';
      position: absolute;
      top: -60px; right: -60px;
      width: 260px; height: 260px;
      background: radial-gradient(circle, rgba(79,172,254,0.15), transparent 70%);
      pointer-events: none;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      border-radius: 999px;
      background: rgba(79,172,254,0.12);
      border: 1px solid rgba(79,172,254,0.3);
      font-size: 12px;
      font-weight: 600;
      color: var(--grad-start);
      letter-spacing: 0.04em;
      margin-bottom: 20px;
    }

    .hero h1 {
      font-size: clamp(32px, 4vw, 44px);
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 14px;
      background: var(--grad);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero p {
      color: var(--text-2);
      max-width: 760px;
      font-size: 16px;
      line-height: 1.75;
    }

    /* ── CONTACT SECTION ── */
    .contact-section {
      margin-bottom: 24px;
      background: var(--surface);
      backdrop-filter: blur(16px);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: clamp(24px, 3vw, 32px);
      box-shadow: var(--shadow-card);
    }

    .contact-section h2 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 6px;
    }

    .contact-section > p {
      color: var(--text-2);
      font-size: 14px;
    }

    .contact-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 18px;
    }

    .contact-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 18px;
      border-radius: var(--radius-sm);
      background: var(--surface-2);
      border: 1px solid var(--border);
      text-decoration: none;
      color: var(--text-2);
      font-size: 14px;
      font-weight: 600;
      transition: all 0.3s ease;
    }

    .contact-link:hover {
      background: rgba(79,172,254,0.12);
      border-color: var(--border-hover);
      color: var(--grad-start);
      transform: translateY(-2px);
    }

    .contact-link.highlight {
      background: rgba(79,172,254,0.12);
      color: var(--grad-start);
      border-color: rgba(79,172,254,0.3);
    }

    .price-policy-panel {
      margin-top: 20px;
      padding: 18px;
      background: rgba(79,172,254,0.08);
      border: 1px dashed rgba(79,172,254,0.3);
      border-radius: 12px;
      display: grid;
      grid-template-columns: repeat(2, minmax(260px, 1fr));
      gap: 14px;
      align-items: stretch;
    }

    .price-reference-card {
      display: flex;
      min-height: 112px;
      flex-direction: column;
      align-items: flex-start;
      justify-content: center;
      gap: 12px;
      padding: 18px;
      border-radius: 10px;
      background: #fff;
      border: 1px solid rgba(0,113,227,0.16);
      box-shadow: 0 4px 14px rgba(0,0,0,0.03);
      transition: all 0.25s ease;
    }

    .price-reference-card:focus-within,
    .price-reference-card:hover {
      border-color: rgba(0,113,227,0.32);
      box-shadow: 0 6px 18px rgba(0,113,227,0.12);
      transform: translateY(-1px);
    }

    .quick-action-eyebrow {
      color: var(--muted);
      font-size: 12px;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.04em;
    }

    .quick-action-title {
      color: var(--text);
      font-size: 16px;
      font-weight: 800;
      line-height: 1.35;
    }

    .quick-action-desc {
      color: var(--text-2);
      font-size: 13px;
      font-weight: 500;
      line-height: 1.5;
      margin-top: -6px;
    }

    .price-reference-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 40px;
      padding: 10px 18px;
      background: var(--grad);
      color: #fff;
      border-radius: 8px;
      font-weight: 800;
      font-size: 14px;
      text-decoration: none;
      box-shadow: 0 4px 12px rgba(79,172,254,0.3);
      transition: all 0.25s ease;
    }

    .price-reference-link:hover {
      box-shadow: 0 7px 18px rgba(79,172,254,0.36);
      transform: translateY(-1px);
    }

    .price-reference-link:focus-visible,
    .sales-policy-link:focus-visible {
      outline: 3px solid rgba(0,113,227,0.22);
      outline-offset: 3px;
    }

    .sales-policy-link {
      display: flex;
      min-height: 112px;
      padding: 18px;
      border-radius: 10px;
      background: #fff;
      border: 1px solid rgba(0,113,227,0.16);
      color: var(--text);
      text-decoration: none;
      text-align: left;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      box-shadow: 0 4px 14px rgba(0,0,0,0.03);
      transition: all 0.25s ease;
    }

    .sales-policy-link:hover {
      border-color: var(--border-hover);
      box-shadow: 0 6px 18px rgba(0,113,227,0.14);
      transform: translateY(-1px);
    }

    .sales-policy-link:hover .quick-action-title,
    .sales-policy-link:hover .quick-action-arrow {
      color: var(--grad-start);
    }

    .quick-action-copy {
      display: grid;
      gap: 8px;
      min-width: 0;
    }

    .quick-action-arrow {
      width: 36px;
      height: 36px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 999px;
      background: rgba(0,113,227,0.1);
      color: var(--text);
      font-size: 20px;
      font-weight: 900;
      flex: 0 0 auto;
      transition: all 0.25s ease;
    }

    .sales-policy-link:hover .quick-action-arrow {
      background: rgba(0,113,227,0.16);
      transform: translateX(2px);
    }

    .catalog-layout {
      display: grid;
      grid-template-columns: 240px minmax(0, 1fr);
      gap: 24px;
      align-items: start;
      margin-bottom: 28px;
    }

    .category-sidebar {
      position: sticky;
      top: 20px;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow-card);
      padding: 22px 18px;
    }

    .category-sidebar-title {
      font-size: 17px;
      font-weight: 800;
      color: var(--text);
      margin-bottom: 6px;
    }

    .category-sidebar-sub {
      font-size: 13px;
      line-height: 1.6;
      color: var(--text-2);
      margin-bottom: 14px;
    }

    .category-filter {
      display: grid;
      gap: 10px;
    }

    .category-btn {
      width: 100%;
      border: 1px solid transparent;
      background: var(--surface-2);
      color: var(--text-2);
      padding: 12px 14px;
      border-radius: 12px;
      cursor: pointer;
      font-size: 14px;
      font-weight: 700;
      font-family: inherit;
      text-align: left;
      transition: all 0.2s ease;
    }

    .category-btn:hover {
      border-color: rgba(0, 113, 227, 0.2);
      color: var(--grad-start);
      background: rgba(79,172,254,0.08);
      transform: translateX(2px);
    }

    .category-btn.active {
      background: var(--grad);
      color: #fff;
      border-color: transparent;
      box-shadow: 0 8px 18px rgba(79,172,254,0.28);
    }

    .catalog-main {
      min-width: 0;
    }

    /* ── PRODUCT GRID ── */
    .product-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: clamp(16px, 2vw, 22px);
      margin-bottom: 24px;
      align-items: start;
    }

    /* ── PRODUCT ICON ── */
    .product-icon-header {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      margin-bottom: 6px;
    }

    .product-icon {
      width: 68px;
      height: 68px;
      border-radius: 12px;
      object-fit: contain;
      background: #ffffff;
      border: 1px solid rgba(0,0,0,0.06);
      padding: 4px;
      flex-shrink: 0;
      box-shadow: 0 4px 10px rgba(0,0,0,0.04);
    }

    .product-icon-placeholder {
      width: 68px;
      height: 68px;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(37,99,235,0.03), rgba(37,99,235,0.08));
      border: 1px solid rgba(37,99,235,0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 32px;
      flex-shrink: 0;
      box-shadow: 0 4px 10px rgba(0,0,0,0.02);
    }

    .product-icon-pills {
      flex: 1;
      min-width: 0;
    }

    .product-card {
      background: var(--surface);
      border: 1px solid rgba(0,0,0,0.06);
      border-radius: var(--radius);
      padding: clamp(20px, 2vw, 28px);
      box-shadow: 0 4px 24px rgba(0,0,0,0.04);
      cursor: pointer;
      transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
      display: flex;
      flex-direction: column;
    }

    .product-card:hover {
      transform: translateY(-4px) scale(1.01);
      box-shadow: 0 12px 32px rgba(0,0,0,0.08);
    }

    .product-card.active {
      border-color: var(--grad-start);
      box-shadow: 0 0 0 1.5px var(--grad-start), 0 4px 24px rgba(0,113,227,0.15);
      background: rgba(0,113,227,0.02);
    }

    .product-pill {
      display: inline-block;
      align-self: flex-start;
      padding: 4px 10px;
      border-radius: 6px;
      font-size: 10px;
      font-weight: 700;
      background: #e8e8ed;
      color: #1d1d1f;
      border: none;
      margin-bottom: 10px;
      letter-spacing: 0.02em;
    }

    .site-status-bar {
      display: flex;
      gap: 12px;
      align-items: stretch;
      margin: 0 0 24px;
    }

    .site-status-item {
      flex: 1;
      display: flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
      padding: 14px 16px;
      border-radius: 12px;
      border: 1px solid rgba(0,0,0,0.06);
      background: var(--surface);
      box-shadow: var(--shadow-card);
    }

    .site-status-label {
      color: var(--text);
      font-size: 14px;
      font-weight: 700;
    }

    .site-status-value {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-2);
      margin-left: auto;
      white-space: nowrap;
    }

    .site-status-dot {
      width: 9px;
      height: 9px;
      border-radius: 999px;
      flex-shrink: 0;
      background: currentColor;
      box-shadow: 0 0 0 4px color-mix(in srgb, currentColor 16%, transparent);
    }

    .site-status-item.is-green .site-status-value { color: var(--success); }
    .site-status-item.is-yellow .site-status-value { color: var(--warning); }
    .site-status-item.is-red .site-status-value { color: var(--danger); }

    .product-card h3 {
      font-size: 18px;
      font-weight: 700;
      line-height: 1.35;
      color: var(--text);
      margin-bottom: 8px;
    }

    .product-card p {
      color: var(--text-2);
      font-size: 14px;
      line-height: 1.65;
      margin-bottom: 18px;
      display: none; /* Collapsed initially */
    }
    
    .product-card.expanded p {
      display: block; /* Expanded when clicked */
    }

    .product-card.hot-product {
      border: 1px solid rgba(239, 68, 68, 0.15);
      box-shadow: 0 4px 12px rgba(239, 68, 68, 0.05);
    }
    .product-card.hot-product:hover {
      border-color: rgba(239, 68, 68, 0.4);
      box-shadow: 0 8px 24px rgba(239, 68, 68, 0.1);
    }
    .product-card.hot-product.active {
      border-color: rgba(239, 68, 68, 0.8);
      box-shadow: 0 0 0 1px rgba(239, 68, 68, 0.8), 0 4px 16px rgba(239, 68, 68, 0.15);
      background: rgba(239, 68, 68, 0.02);
    }

    .product-bottom {
      margin-top: auto;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      flex-wrap: wrap;
    }

    .product-price {
      font-size: 26px;
      font-weight: 700;
      color: #1d1d1f;
      letter-spacing: -0.02em;
    }

    .product-btn {
      border: none;
      border-radius: var(--radius-sm);
      padding: 10px 18px;
      font-size: 13px;
      font-weight: 700;
      cursor: pointer;
      background: var(--grad);
      color: #fff;
      font-family: inherit;
      transition: all 0.3s ease;
      box-shadow: 0 4px 14px rgba(79,172,254,0.25);
      display: none;
    }

    .product-card.expanded .product-btn {
      display: block;
    }

    .product-btn:hover {
      box-shadow: 0 6px 22px rgba(79,172,254,0.5);
      transform: translateY(-1px);
    }

    /* ── TABS ── */
    .tabs {
      display: flex;
      gap: 8px;
      margin-bottom: 20px;
      flex-wrap: wrap;
    }

    .tab-btn {
      border: none;
      background: #e8e8ed;
      color: #86868b;
      padding: 10px 22px;
      border-radius: 999px;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 600;
      font-family: inherit;
      text-decoration: none;
      transition: all 0.2s ease;
    }

    .tab-btn:hover {
      border-color: var(--border-hover);
      color: var(--grad-start);
    }

    .tab-btn.active {
      background: var(--grad);
      color: #fff;
      border-color: transparent;
      box-shadow: 0 4px 18px rgba(79,172,254,0.35);
    }

    /* ── PANEL ── */
    .panel {
      display: none;
      background: var(--surface);
      backdrop-filter: blur(16px);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow-card);
      padding: clamp(24px, 3vw, 36px);
    }

    .panel.active { display: block; }

    .panel h2 {
      font-size: 22px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 8px;
    }

    .panel-sub {
      color: var(--text-2);
      line-height: 1.6;
      font-size: 14px;
      margin-bottom: 24px;
    }

    /* ── GRID ── */
    .grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 24px;
    }

    .card {
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      padding: clamp(20px, 2vw, 24px);
      background: var(--surface-2);
    }

    .card-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 18px;
    }

    label {
      display: block;
      margin-bottom: 8px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-2);
      letter-spacing: 0.02em;
    }

    .field { margin-bottom: 16px; }

    input {
      width: 100%;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 13px 16px;
      font-size: 15px;
      font-family: inherit;
      outline: none;
      background: rgba(255,255,255,0.05);
      color: var(--text);
      transition: all 0.3s ease;
    }

    input::placeholder { color: var(--muted); }

    input:focus {
      border-color: var(--grad-start);
      box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
      background: #ffffff;
    }

    .coupon-row {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 10px;
    }

    .coupon-btn {
      border: 1px solid rgba(79,172,254,0.3);
      border-radius: var(--radius-sm);
      padding: 13px 16px;
      font-size: 14px;
      font-weight: 700;
      font-family: inherit;
      cursor: pointer;
      background: rgba(79,172,254,0.1);
      color: var(--grad-start);
      white-space: nowrap;
      transition: all 0.3s ease;
    }

    .coupon-btn:hover {
      background: rgba(79,172,254,0.2);
      box-shadow: 0 4px 14px rgba(79,172,254,0.25);
    }

    /* ── SUMMARY ── */
    .summary {
      background: rgba(255,255,255,0.03);
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 16px;
    }

    .summary-row {
      display: flex;
      justify-content: space-between;
      gap: 10px;
      padding: 9px 0;
      border-bottom: 1px solid rgba(255,255,255,0.06);
      font-size: 14px;
      color: var(--text-2);
    }

    .summary-row:last-child { border-bottom: none; padding-bottom: 0; }

    .summary-row.total {
      font-size: 17px;
      font-weight: 700;
      color: var(--grad-start);
      padding-top: 14px;
    }

    .summary-row.discount { color: var(--success); font-weight: 700; }

    /* ── BUTTONS ── */
    .btn {
      border: none;
      border-radius: var(--radius-sm);
      padding: 14px 20px;
      font-size: 15px;
      font-weight: 700;
      font-family: inherit;
      cursor: pointer;
      transition: all 0.3s ease;
    }

    .btn-primary {
      width: 100%;
      background: var(--grad);
      color: #fff;
      box-shadow: 0 4px 18px rgba(79,172,254,0.3);
    }

    .btn-primary:hover {
      box-shadow: 0 6px 28px rgba(79,172,254,0.55);
      transform: translateY(-1px);
    }

    .btn-secondary {
      width: 100%;
      background: rgba(255,255,255,0.08);
      color: var(--text);
      border: 1px solid var(--border);
    }

    .btn-secondary:hover {
      background: rgba(79,172,254,0.12);
      border-color: var(--border-hover);
      color: var(--grad-start);
      box-shadow: 0 4px 14px rgba(79,172,254,0.2);
    }

    /* ── RESULT BOX ── */
    .result-box {
      margin-top: 20px;
      padding: 22px;
      border-radius: var(--radius);
      background: rgba(255,255,255,0.03);
      border: 1px solid var(--border);
      display: none;
    }

    .result-box.show { display: block; }

    .result-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 12px;
    }

    .result-note {
      white-space: pre-wrap;
      line-height: 1.75;
      font-size: 14px;
      color: var(--text-2);
    }

    .instruction-content {
      margin-top: 10px;
      font-size: 14px;
      color: var(--text-2);
      line-height: 1.75;
      overflow-wrap: anywhere;
    }

    .instruction-content p,
    .instruction-content ul,
    .instruction-content ol,
    .instruction-content blockquote,
    .instruction-content pre,
    .instruction-content table {
      margin: 0 0 12px;
    }

    .instruction-content ul,
    .instruction-content ol {
      padding-left: 22px;
    }

    .instruction-content a {
      color: var(--grad-start);
    }

    .instruction-content img {
      max-width: 100%;
      height: auto;
      border-radius: 8px;
    }

    /* ── STATUS PILLS ── */
    .status {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      font-weight: 700;
      padding: 6px 14px;
      border-radius: 999px;
      letter-spacing: 0.03em;
    }

    .status.success { background: rgba(34,211,160,0.15); color: var(--success); border: 1px solid rgba(34,211,160,0.3); }
    .status.error   { background: rgba(248,113,113,0.12); color: var(--danger);  border: 1px solid rgba(248,113,113,0.3); }
    .status.warning { background: rgba(251,191,36,0.12);  color: var(--warning); border: 1px solid rgba(251,191,36,0.3);  }

    /* ── QR ── */
    .qr-wrap {
      margin-top: 18px;
      text-align: center;
      background: rgba(255,255,255,0.04);
      border: 1px dashed rgba(79,172,254,0.3);
      border-radius: var(--radius);
      padding: 20px;
    }

    .qr-wrap img {
      width: 100%;
      max-width: 280px;
      border-radius: 12px;
      background: #fff;
    }

    .copy-row {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 10px;
      margin-top: 14px;
    }

    .copy-box {
      background: rgba(0,0,0,0.02);
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 12px 16px;
      font-size: 14px;
      overflow-wrap: anywhere;
      color: var(--text-2);
    }

    .copy-btn {
      border: 1px solid rgba(79,172,254,0.3);
      border-radius: var(--radius-sm);
      padding: 12px 16px;
      font-size: 13px;
      font-weight: 700;
      font-family: inherit;
      cursor: pointer;
      background: rgba(79,172,254,0.1);
      color: var(--grad-start);
      white-space: nowrap;
      transition: all 0.3s ease;
    }

    .copy-btn:hover { background: rgba(79,172,254,0.2); box-shadow: 0 4px 14px rgba(79,172,254,0.25); }

    /* ── ORDER LIST ── */
    .order-list { display: grid; gap: 16px; margin-top: 20px; }

    .order-item {
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: var(--surface-2);
      padding: 20px;
      transition: border-color 0.3s ease;
    }

    .order-item:hover { border-color: var(--border-hover); }

    .order-head {
      display: flex;
      justify-content: space-between;
      gap: 10px;
      align-items: center;
      flex-wrap: wrap;
      margin-bottom: 14px;
    }

    .order-code { font-weight: 700; font-size: 15px; color: var(--text); }

    .order-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 10px 18px;
    }

    .order-field { font-size: 14px; line-height: 1.5; color: var(--text-2); }
    .order-field b { display: inline-block; min-width: 110px; color: var(--text); }

    .empty-box {
      margin-top: 16px;
      padding: 28px;
      border: 1px dashed var(--border);
      border-radius: var(--radius);
      text-align: center;
      color: var(--text-2);
      font-size: 14px;
    }

    /* ── LOADING OVERLAY ── */
    .loading-overlay {
      position: fixed;
      inset: 0;
      background: rgba(245, 245, 247, 0.6);
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
      display: none;
      align-items: center;
      justify-content: center;
      z-index: 999;
      padding: 16px;
    }

    .loading-overlay.show { display: flex; }

    .loading-card {
      width: 100%;
      max-width: 320px;
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 32px 28px;
      text-align: center;
      box-shadow: var(--shadow-card);
    }

    .spinner {
      width: 48px;
      height: 48px;
      border: 3px solid rgba(79,172,254,0.15);
      border-top-color: var(--grad-start);
      border-radius: 50%;
      margin: 0 auto 18px;
      animation: spin 0.8s linear infinite;
    }

    .loading-title { font-size: 17px; font-weight: 700; margin-bottom: 8px; color: var(--text); }
    .loading-text  { font-size: 14px; color: var(--text-2); line-height: 1.6; }

    /* ── HISTORY TABLE ── */
    .history-table-wrapper {
      overflow-x: auto;
      margin-top: 20px;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      background: var(--surface-2);
    }

    .history-table { width: 100%; border-collapse: collapse; min-width: 600px; }

    .history-table th, .history-table td {
      padding: 14px 18px;
      text-align: left;
      font-size: 14px;
      border-bottom: 1px solid rgba(255,255,255,0.05);
    }

    .history-table th {
      background: rgba(0,0,0,0.03);
      font-weight: 600;
      color: var(--text-2);
      white-space: nowrap;
      font-size: 12px;
      letter-spacing: 0.05em;
      text-transform: uppercase;
    }

    .history-table tr:last-child td { border-bottom: none; }
    .history-table td { color: var(--text-2); vertical-align: top; }

    .result-cell { min-width: 300px; max-width: 450px; width: 40%; }

    .account-block {
      position: relative;
      background: #f5f5f7;
      border: 1px solid var(--border);
      border-radius: 10px;
      padding: 12px;
      padding-right: 50px;
    }
    
    .account-block pre {
      margin: 0;
      max-height: 160px;
      overflow-y: auto;
      font-family: inherit;
      font-size: 13px;
      white-space: pre-wrap;
      word-break: break-word;
      color: #1d1d1f;
    }

    .btn-copy-sm {
      position: absolute;
      top: 8px;
      right: 8px;
      background: rgba(79,172,254,0.15);
      border: 1px solid rgba(79,172,254,0.3);
      color: var(--grad-start);
      border-radius: 6px;
      padding: 5px 8px;
      font-size: 11px;
      font-weight: 700;
      cursor: pointer;
      transition: all 0.2s;
    }
    .btn-copy-sm:hover { background: rgba(79,172,254,0.25); }

    .pay-btn {
      background: rgba(79,172,254,0.12);
      color: var(--grad-start);
      border: 1px solid rgba(79,172,254,0.3);
      padding: 7px 14px;
      border-radius: 10px;
      font-size: 13px;
      font-weight: 700;
      font-family: inherit;
      cursor: pointer;
      white-space: nowrap;
      transition: all 0.3s ease;
    }

    .pay-btn:hover { background: rgba(79,172,254,0.22); box-shadow: 0 4px 14px rgba(79,172,254,0.25); }

    /* ── MODAL ── */
    .modal-overlay {
      position: fixed;
      inset: 0;
      background: rgba(245, 245, 247, 0.6);
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
      display: none;
      align-items: center;
      justify-content: center;
      z-index: 1000;
      padding: 16px;
    }

    .modal-overlay.show { display: flex; }

    .modal-card {
      background: rgba(255,255,255,0.85);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 32px 28px;
      text-align: center;
      box-shadow: var(--shadow-card);
      max-width: 340px;
      width: 100%;
    }

    .modal-card h3 { color: var(--text); font-size: 18px; margin-bottom: 8px; }
    .modal-card p  { color: var(--text-2); font-size: 14px; }

    .modal-close {
      margin-top: 18px;
      background: rgba(0,0,0,0.05);
      color: var(--text);
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 10px 24px;
      font-size: 14px;
      font-weight: 700;
      font-family: inherit;
      cursor: pointer;
      transition: all 0.3s ease;
    }

    .modal-close:hover { background: rgba(79,172,254,0.12); border-color: var(--border-hover); color: var(--grad-start); }

    .maintenance-overlay {
      position: fixed;
      inset: 0;
      display: none;
      align-items: center;
      justify-content: center;
      padding: 20px;
      background: rgba(255,255,255,0.82);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      z-index: 3000;
    }

    .maintenance-overlay.show { display: flex; }

    .maintenance-card {
      width: min(100%, 460px);
      background: rgba(255,255,255,0.96);
      border: 1px solid rgba(239,68,68,0.18);
      border-radius: 18px;
      box-shadow: 0 24px 60px rgba(15,23,42,0.18);
      padding: 28px 24px;
      text-align: center;
    }

    .maintenance-badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 8px 14px;
      border-radius: 999px;
      background: rgba(239,68,68,0.12);
      color: #dc2626;
      font-size: 12px;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .maintenance-card h3 {
      margin: 0 0 10px;
      color: var(--text);
      font-size: 24px;
      font-weight: 800;
    }

    .maintenance-card p {
      margin: 0;
      color: var(--text-2);
      font-size: 15px;
      line-height: 1.7;
    }

    /* ── LOGIN BUTTON (in hero) ── */
    .hero-top {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      gap: 12px;
      flex-wrap: wrap;
    }

    .login-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 9px 18px;
      border-radius: 999px;
      background: rgba(79,172,254,0.12);
      border: 1px solid rgba(79,172,254,0.3);
      color: var(--grad-start);
      font-size: 13px;
      font-weight: 700;
      font-family: inherit;
      cursor: pointer;
      transition: all 0.3s ease;
      white-space: nowrap;
      flex-shrink: 0;
    }

    .login-btn:hover { background: rgba(79,172,254,0.22); box-shadow: 0 4px 18px rgba(79,172,254,0.3); }

    .login-btn .avatar {
      width: 26px; height: 26px;
      border-radius: 50%;
      background: var(--grad);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      font-weight: 700;
      color: #fff;
    }

    /* ── LOGIN MODAL CARD ── */
    .login-modal-card {
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 32px 28px;
      box-shadow: var(--shadow-card);
      max-width: 380px;
      width: 100%;
    }

    .login-modal-title { font-size: 20px; font-weight: 800; color: var(--text); margin-bottom: 6px; }
    .login-modal-sub   { font-size: 14px; color: var(--text-2); line-height: 1.65; margin-bottom: 22px; }

    .login-modal-actions {
      display: flex;
      gap: 10px;
      margin-top: 18px;
      flex-wrap: wrap;
    }

    .btn-logout {
      flex: 1;
      background: rgba(248,113,113,0.1);
      color: var(--danger);
      border: 1px solid rgba(248,113,113,0.25);
      border-radius: var(--radius-sm);
      padding: 12px;
      font-size: 14px;
      font-weight: 700;
      font-family: inherit;
      cursor: pointer;
      transition: all 0.3s ease;
    }

    .btn-logout:hover { background: rgba(248,113,113,0.18); }

    .btn-do-login {
      flex: 2;
      background: var(--grad);
      color: #fff;
      border: none;
      border-radius: var(--radius-sm);
      padding: 12px;
      font-size: 14px;
      font-weight: 700;
      font-family: inherit;
      cursor: pointer;
      transition: all 0.3s ease;
      box-shadow: 0 4px 16px rgba(79,172,254,0.3);
    }

    .btn-do-login:hover { box-shadow: 0 6px 24px rgba(79,172,254,0.5); transform: translateY(-1px); }

    /* ── LOGGED IN BANNER ── */
    #loggedInBanner {
      background: rgba(79,172,254,0.08) !important;
      border: 1px solid rgba(79,172,254,0.25) !important;
      border-radius: var(--radius-sm) !important;
      padding: 12px 16px !important;
      margin-bottom: 16px !important;
      font-size: 14px !important;
      color: var(--text-2) !important;
    }

    #loggedInBanner a { color: var(--grad-start) !important; }

    /* ── KEYFRAMES ── */
    @keyframes spin { to { transform: rotate(360deg); } }

    /* ── RESPONSIVE ── */
    @media (max-width: 1180px) {
      .catalog-layout {
        grid-template-columns: 220px minmax(0, 1fr);
      }

      .grid { grid-template-columns: 1fr; }
      .product-grid { grid-template-columns: 1fr; }
    }

    @media (max-width: 860px) {
      .catalog-layout {
        grid-template-columns: 1fr;
      }

      .category-sidebar {
        position: static;
      }

      .category-filter {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
      }

      .price-policy-panel {
        grid-template-columns: 1fr;
      }

      .order-grid { grid-template-columns: 1fr; }
      .copy-row, .coupon-row { grid-template-columns: 1fr; }
    }

    @media (max-width: 760px) {
      body { font-size: 14px; }
      .container { width: min(var(--container-max), calc(100% - 24px)); }
      .hero h1 { font-size: 28px; }
      .hero { padding: 28px 20px; }
      .contact-section, .panel, .category-sidebar { padding: 20px 16px; }
      .site-status-bar { flex-direction: column; }
      .site-status-item { align-items: flex-start; flex-direction: column; }
      .site-status-value { margin-left: 0; white-space: normal; }
      .product-card { padding: 18px; }
      .product-icon-header { gap: 12px; }
      .tabs { gap: 10px; }
      .tab-btn { width: 100%; justify-content: center; }
      .category-filter { grid-template-columns: 1fr; }
    }

/* ===== Extracted stylesheet block 2 ===== */
/* --- V5 APP WORKSPACE --- */
:root {
  --v4-bg: #f3f6fa;
  --v4-surface: #ffffff;
  --v4-surface-soft: #eef4ff;
  --v4-primary: #3157d5;
  --v4-primary-strong: #2444ad;
  --v4-accent: #0f9f8f;
  --v4-warn: #b7791f;
  --v4-text: #111827;
  --v4-muted: #64748b;
  --v4-border: #dbe3ef;
  --v4-shadow: 0 14px 34px rgba(15, 23, 42, 0.08);
  --v4-radius: 8px;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background: var(--v4-bg) !important;
  color: var(--v4-text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif !important;
  overflow: auto !important;
  overflow-x: hidden !important;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 256px minmax(0, 1fr);
  background:
    linear-gradient(180deg, rgba(49, 87, 213, 0.06), transparent 220px),
    var(--v4-bg);
}

.app-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 18px 14px;
  background: var(--v4-surface);
  border-right: 1px solid var(--v4-border);
  display: flex;
  flex-direction: column;
  gap: 18px;
  z-index: 30;
}

.app-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 8px 16px;
  color: var(--v4-text);
  text-decoration: none;
  border-bottom: 1px solid var(--v4-border);
}

.app-brand img {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  border: 1px solid var(--v4-border);
  background: #fff;
}

.app-brand strong {
  display: block;
  font-size: 17px;
  line-height: 1.15;
}

.app-brand span {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  color: var(--v4-muted);
}

.app-nav {
  display: grid;
  gap: 6px;
}

.app-nav-link {
  min-height: 42px;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 0 12px;
  border-radius: var(--v4-radius);
  color: var(--v4-muted);
  text-decoration: none;
  font-weight: 700;
  font-size: 14px;
}

.app-nav-link svg {
  width: 19px;
  height: 19px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex: 0 0 auto;
}

.app-nav-link:hover {
  color: var(--v4-primary);
  background: var(--v4-surface-soft);
}

.app-nav-link.is-active {
  color: #fff;
  background: var(--v4-primary);
  box-shadow: 0 10px 24px rgba(49, 87, 213, 0.24);
}

.app-sidebar-card {
  margin-top: auto;
  padding: 14px;
  border-radius: var(--v4-radius);
  background: #f8fafc;
  border: 1px solid var(--v4-border);
}

.app-sidebar-card span {
  display: block;
  color: var(--v4-muted);
  font-size: 12px;
  line-height: 1.45;
}

.app-sidebar-card a {
  display: inline-flex;
  margin-top: 10px;
  color: var(--v4-primary);
  font-weight: 800;
  text-decoration: none;
}

.app-main {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 12px clamp(18px, 4vw, 40px);
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid var(--v4-border);
  backdrop-filter: blur(14px);
}

.app-page-title {
  min-width: 0;
}

.app-page-title span {
  display: block;
  color: var(--v4-primary);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.app-page-title strong {
  display: block;
  margin-top: 3px;
  font-size: clamp(20px, 2vw, 27px);
  line-height: 1.15;
}

.app-header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.app-search {
  display: none;
  width: min(320px, 30vw);
  min-height: 42px;
  align-items: center;
  gap: 8px;
  padding: 0 12px;
  border: 1px solid var(--v4-border);
  border-radius: var(--v4-radius);
  background: #f8fafc;
  color: var(--v4-muted);
  font-size: 13px;
  font-weight: 700;
}

.app-search svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.app-header-chip,
.app-login-chip {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 0 12px;
  border: 1px solid var(--v4-border);
  border-radius: var(--v4-radius);
  background: #fff;
  color: var(--v4-text);
  font-size: 13px;
  font-weight: 800;
  white-space: nowrap;
}

.app-login-chip {
  cursor: pointer;
}

.app-login-chip:hover {
  border-color: rgba(49, 87, 213, 0.45);
  color: var(--v4-primary);
}

.app-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--v4-primary);
  color: #fff;
  font-size: 11px;
  font-weight: 900;
}

.app-menu-button {
  width: 42px;
  height: 42px;
  display: none;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--v4-border);
  border-radius: var(--v4-radius);
  background: #fff;
  color: var(--v4-text);
}

.app-menu-button svg {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}

.app-backdrop {
  display: none;
}

.app-content {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 22px clamp(18px, 2.6vw, 34px) 44px;
}

.app-content *,
.app-sidebar * {
  box-sizing: border-box;
}

.container,
.container-inner {
  width: 100% !important;
  max-width: none !important;
  margin: 0 !important;
  padding: 0 !important;
}

.topbar,
.tabs {
  display: none !important;
}

.hero,
.policy-hero {
  padding: 24px !important;
  margin-bottom: 18px !important;
  border-radius: var(--v4-radius) !important;
  background: #fff !important;
  border: 1px solid var(--v4-border) !important;
  box-shadow: var(--v4-shadow) !important;
}

.hero h1,
.policy-hero h1 {
  color: var(--v4-text) !important;
  font-size: clamp(28px, 4vw, 42px) !important;
  letter-spacing: 0 !important;
}

.hero p,
.policy-hero p,
.panel-sub {
  color: var(--v4-muted) !important;
}

body.app-page-index .hero,
body.app-page-index .contact-section {
  display: none !important;
}

body.app-page-index .container-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(350px, 380px);
  gap: 18px;
  align-items: start;
}

body.app-page-index .app-left-pane {
  min-width: 0;
}

body.app-page-index .app-checkout-pane {
  min-width: 0;
  position: sticky;
  top: 90px;
  align-self: start;
  max-height: calc(100vh - 110px);
  overflow-y: auto;
  padding-right: 4px;
}

body.app-page-index .site-status-bar,
body.app-page-index .catalog-layout {
  grid-column: 1;
}

body.app-page-index #orderTab {
  grid-column: auto;
  grid-row: auto;
  position: static;
  top: auto;
}

body.app-page-index #orderTab h2 {
  margin-top: 0 !important;
  font-size: 20px !important;
}

body.app-page-index #orderTab .grid {
  display: grid !important;
  grid-template-columns: 1fr !important;
  gap: 14px !important;
}

body.app-page-index #orderTab .card {
  padding: 18px !important;
}

body.app-page-index #orderTab .panel-sub {
  font-size: 13px !important;
}

body.app-page-index #orderResult {
  overflow-wrap: anywhere;
}

body.app-page-index #orderResult .qr-wrap,
body.app-page-index #orderResult .result-box {
  max-width: 100%;
}

body.app-page-index #orderResult img {
  max-width: 100% !important;
  height: auto !important;
}

body.app-page-index footer {
  grid-column: 1 / -1;
}

body.app-page-index .app-support-strip {
  grid-column: 1;
}

.app-support-strip {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 14px;
  margin-bottom: 16px;
}

.app-support-card,
.app-price-card {
  border: 1px solid var(--v4-border);
  background: #fff;
  border-radius: var(--v4-radius);
  padding: 16px;
}

.app-support-card h2,
.app-price-card h2 {
  margin: 0 0 10px;
  font-size: 16px;
}

.app-support-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.app-support-links a,
.app-price-card a {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 12px;
  border-radius: var(--v4-radius);
  border: 1px solid var(--v4-border);
  background: #f8fafc;
  color: var(--v4-primary);
  text-decoration: none;
  font-size: 13px;
  font-weight: 800;
}

.app-price-card p {
  margin: 0 0 12px;
  color: var(--v4-muted);
  font-size: 13px;
  line-height: 1.5;
}

.badge,
.policy-kicker,
.quick-action-eyebrow,
.product-pill {
  border-radius: var(--v4-radius) !important;
}

.contact-section,
.site-status-bar,
.panel,
.guide-card,
.policy-card,
.price-reference-card,
.sales-policy-link,
.category-sidebar,
.card {
  border-radius: var(--v4-radius) !important;
  border: 1px solid var(--v4-border) !important;
  background: #fff !important;
  box-shadow: none !important;
}

.panel,
.guide-card,
.policy-card,
.card,
.contact-section {
  padding: clamp(18px, 3vw, 28px) !important;
}

.catalog-layout {
  align-items: start;
  display: grid !important;
  grid-template-columns: 180px minmax(0, 1fr) !important;
  gap: 16px !important;
}

.contact-links,
.price-policy-panel,
.site-status-bar {
  max-width: 100%;
}

.product-grid {
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 230px), 1fr)) !important;
  gap: 14px !important;
}

.grid {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 360px), 1fr)) !important;
}

.category-sidebar {
  position: sticky;
  top: 96px;
}

.product-card {
  border-radius: var(--v4-radius) !important;
  border: 1px solid var(--v4-border) !important;
  background: #fff !important;
  box-shadow: none !important;
  min-width: 0 !important;
  padding: 16px !important;
  contain: content;
  content-visibility: auto;
  contain-intrinsic-size: 220px;
}

.product-card:hover {
  border-color: rgba(49, 87, 213, 0.45) !important;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.06) !important;
}

.product-card.active {
  border-color: var(--v4-primary) !important;
  box-shadow: inset 3px 0 0 var(--v4-primary) !important;
  background: #fbfdff !important;
}

.product-icon-header {
  gap: 12px !important;
  margin-bottom: 8px !important;
}

.product-icon,
.product-icon-placeholder {
  width: 46px !important;
  height: 46px !important;
  border-radius: var(--v4-radius) !important;
  flex: 0 0 auto !important;
}

.product-card h3 {
  font-size: 15px !important;
  line-height: 1.32 !important;
  margin-bottom: 8px !important;
}

.product-card p {
  display: none !important;
}

.product-card.expanded p {
  display: block !important;
  font-size: 13px !important;
  line-height: 1.5 !important;
  margin: 8px 0 12px !important;
}

.product-price {
  font-size: 24px !important;
  line-height: 1 !important;
}

.product-bottom {
  gap: 12px !important;
}

.product-btn {
  min-height: 38px !important;
  padding: 0 12px !important;
  font-size: 13px !important;
}

.product-pill {
  font-size: 11px !important;
  padding: 5px 8px !important;
}

.category-sidebar {
  padding: 14px !important;
}

.category-sidebar-title {
  font-size: 15px !important;
}

.category-filter {
  gap: 6px !important;
}

.category-btn {
  min-height: 38px !important;
  border-radius: var(--v4-radius) !important;
  font-size: 13px !important;
}

.site-status-bar {
  margin-bottom: 16px !important;
}

.btn-primary,
.product-btn,
.pay-btn,
.login-btn,
.coupon-btn,
.history-btn,
.action-link {
  border-radius: var(--v4-radius) !important;
  background: var(--v4-primary) !important;
  border: 1px solid var(--v4-primary) !important;
  color: #fff !important;
  box-shadow: none !important;
}

.btn-primary:hover,
.product-btn:hover,
.pay-btn:hover,
.login-btn:hover,
.coupon-btn:hover,
.history-btn:hover,
.action-link:hover {
  background: var(--v4-primary-strong) !important;
}

input,
textarea,
select {
  border-radius: var(--v4-radius) !important;
  border: 1px solid var(--v4-border) !important;
  background: #fff !important;
  color: var(--v4-text) !important;
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--v4-primary) !important;
  box-shadow: 0 0 0 3px rgba(49, 87, 213, 0.14) !important;
}

footer {
  margin-top: 24px !important;
  border-top: 1px solid var(--v4-border) !important;
}

@media (max-width: 1120px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .app-menu-button {
    display: inline-flex;
  }

  .app-sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(308px, calc(100vw - 48px));
    height: auto;
    transform: translateX(-105%);
    transition: transform 0.22s ease;
    box-shadow: 20px 0 50px rgba(15, 23, 42, 0.18);
  }

  body.app-nav-open .app-sidebar {
    transform: translateX(0);
  }

  .app-backdrop {
    position: fixed;
    inset: 0;
    z-index: 25;
    display: block;
    pointer-events: none;
    background: rgba(15, 23, 42, 0);
    transition: background 0.22s ease;
  }

  body.app-nav-open .app-backdrop {
    pointer-events: auto;
    background: rgba(15, 23, 42, 0.38);
  }

  .category-sidebar {
    position: static;
  }

  body.app-page-index .container-inner {
    grid-template-columns: 1fr;
  }

  body.app-page-index .site-status-bar,
  body.app-page-index .catalog-layout,
  body.app-page-index #orderTab {
    grid-column: auto;
    grid-row: auto;
  }

  body.app-page-index #orderTab {
    position: static;
  }

  body.app-page-index .app-checkout-pane {
    position: static;
    max-height: none;
    overflow: visible;
    padding-right: 0;
  }
}

@media (max-width: 760px) {
  .app-header {
    min-height: 64px;
    padding: 10px 12px;
  }

  .app-page-title span {
    display: none;
  }

  .app-page-title strong {
    font-size: 18px;
  }

  .app-search,
  .app-header-chip span {
    display: none;
  }

  .app-header-chip {
    width: 42px;
    padding: 0;
    justify-content: center;
  }

  .app-content {
    width: min(100% - 24px, 1240px);
    margin: 0 auto;
    padding: 16px 0 88px;
  }

  .hero,
  .policy-hero,
  .contact-section,
  .panel,
  .guide-card,
  .policy-card,
  .card {
    padding: 18px !important;
  }

  .hero-top,
  .grid,
  .price-policy-panel,
  .catalog-layout {
    grid-template-columns: 1fr !important;
  }

  .app-support-strip,
  .product-grid {
    grid-template-columns: 1fr !important;
  }

  .catalog-layout {
    gap: 12px !important;
    min-width: 0 !important;
    overflow: hidden;
  }

  .catalog-main,
  .product-grid {
    width: 100% !important;
    margin-inline: auto !important;
  }

  .category-sidebar {
    width: 100% !important;
    min-width: 0 !important;
    max-width: 100% !important;
    overflow: hidden;
    padding: 14px !important;
  }

  .category-sidebar-sub {
    margin-bottom: 10px !important;
  }

  .category-filter {
    display: flex !important;
    gap: 8px !important;
    width: 100%;
    min-width: 0;
    max-width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
  }

  .category-filter::-webkit-scrollbar {
    display: none;
  }

  .category-btn {
    width: auto !important;
    flex: 0 0 auto;
    padding: 0 16px !important;
    white-space: nowrap;
    scroll-snap-align: start;
  }

  .product-grid {
    gap: 12px !important;
  }

  .product-card {
    width: 100% !important;
    padding: 14px !important;
    contain: none;
  }

  .product-icon-header {
    align-items: center !important;
  }

  .product-card h3 {
    font-size: 14px !important;
  }

  .product-price {
    font-size: 21px !important;
  }

  .product-bottom {
    display: grid !important;
    grid-template-columns: 1fr !important;
    align-items: stretch !important;
  }

  .product-card.expanded .product-btn {
    display: flex !important;
    width: 100%;
    justify-content: center;
  }

  .app-back-to-top {
    display: inline-flex;
  }

  body.app-page-index .site-status-bar {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
  }

  .hero-top {
    display: grid !important;
    gap: 14px !important;
  }

  .hero-top > *,
  .card,
  .panel,
  .product-card,
  .contact-link,
  .sales-policy-link,
  .price-reference-card {
    min-width: 0 !important;
    max-width: 100% !important;
  }

  .login-btn {
    width: 100%;
    justify-content: center;
  }

  .coupon-row,
  .history-login-grid {
    grid-template-columns: 1fr !important;
  }
}

.app-back-to-top {
  position: fixed;
  right: 14px;
  bottom: 16px;
  z-index: 35;
  width: 46px;
  height: 46px;
  display: none;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(49, 87, 213, 0.22);
  border-radius: 999px;
  background: var(--v4-primary);
  color: #fff;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.18);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.app-back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.app-back-to-top svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

@media (max-width: 760px) {
  .app-back-to-top {
    display: inline-flex;
  }
}

/* ===== Refactor helpers ===== */
.hero-title {
  margin-top: 10px;
}

.hero-copy {
  margin: 10px 0 0;
}

.product-card-skeleton {
  opacity: 0.4;
  pointer-events: none;
}

.product-card-skeleton h3 {
  height: 20px;
  background: rgba(255,255,255,0.08);
  border-radius: 8px;
}

.product-card-skeleton p {
  height: 60px;
  background: rgba(255,255,255,0.05);
  border-radius: 8px;
}

.site-footer {
  text-align: center;
  padding: 30px 16px;
  margin-top: 20px;
  color: var(--muted);
  font-size: 14px;
  border-top: 1px solid var(--border);
}

.site-footer a,
.account-switch-link {
  color: var(--grad-start);
  text-decoration: none;
}

.account-switch-link {
  margin-left: 10px;
  font-weight: 700;
  font-size: 13px;
}

.modal-title {
  margin-top: 0;
}

.modal-sub {
  font-size: 14px;
  color: var(--text-2);
  margin-bottom: 16px;
}

.qr-modal-image {
  width: 100%;
  max-width: 260px;
  border-radius: 12px;
  margin-bottom: 16px;
}

.modal-warning {
  padding: 12px;
  background: rgba(251,191,36,0.1);
  border: 1px solid rgba(251,191,36,0.3);
  border-radius: 8px;
  font-size: 13px;
  color: var(--warning);
  margin-bottom: 16px;
  text-align: left;
  line-height: 1.5;
}

.modal-link {
  color: var(--grad-start);
  font-weight: 700;
  text-decoration: none;
}

.selected-product-name {
  font-size: 18px;
  color: var(--grad-start);
  display: block;
  margin-top: 8px;
  padding: 12px;
  background: rgba(79,172,254,0.1);
  border: 1px solid rgba(79,172,254,0.3);
  border-radius: 8px;
}

.result-title-spaced {
  margin-top: 12px;
}

.order-warning {
  margin-top: 14px;
  padding: 12px;
  background: rgba(251,191,36,0.1);
  border: 1px solid rgba(251,191,36,0.3);
  border-radius: 8px;
  font-size: 13px;
  color: var(--warning);
  line-height: 1.5;
}

.qr-title {
  font-weight: 700;
  margin-bottom: 10px;
}

.form-message {
  display: none;
  font-size: 13px;
  color: #dc2626;
  margin-top: 8px;
}

.login-register-prompt {
  margin: 14px 0 0;
  text-align: center;
  font-size: 13px;
  color: var(--text-2);
}

.product-empty-message {
  padding: 20px;
  color: var(--muted);
  font-size: 14px;
}

.product-card-disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.is-hidden {
  display: none;
}

.product-pill-stopped {
  background: rgba(248,113,113,0.12);
  color: #f87171;
  border-color: rgba(248,113,113,0.3);
}

.product-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  margin-bottom: 10px;
}

.product-pill-row .product-pill {
  margin-bottom: 0;
}

.product-pill-hot {
  background: #ff3b30;
  color: #fff;
}

.product-pill-warning {
  background: #ff9f0a;
  color: #fff;
}

.product-pill-available {
  background: #e8e8ed;
  color: #1d1d1f;
}

.product-pill-stock {
  background: #34c759;
  color: #fff;
}

.product-old-price {
  font-size: 13px;
  text-decoration: line-through;
  color: var(--muted);
  margin-bottom: 2px;
  opacity: 0.6;
}

.product-btn.is-disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.product-card-title {
  margin-top: 2px;
}