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

    :root {
      --brand:         #ec6529;
      --brand-dark:    #c4511e;
      --brand-light:   #f9ede6;
      --brand-mid:     rgba(236,101,41,0.15);
      --brand-border:  rgba(236,101,41,0.25);
      --white:         #ffffff;
      --bg:            #f6f4f1;
      --surface:       #ffffff;
      --surface-hover: #fffaf7;
      --border:        rgba(0,0,0,0.07);
      --border-strong: rgba(0,0,0,0.12);
      --text:          #1a1a18;
      --text-mid:      #5a5858;
      --text-light:    #9a9896;
      --shadow-sm:     0 2px 8px rgba(0,0,0,0.06);
      --shadow-md:     0 8px 32px rgba(0,0,0,0.09);
      --shadow-lg:     0 20px 60px rgba(0,0,0,0.12);
      --shadow-brand:  0 8px 30px rgba(236,101,41,0.22);
      --radius-xl:     20px;
      --radius-lg:     14px;
      --radius-md:     10px;
      --radius-sm:     7px;
      --ease:          cubic-bezier(0.4, 0, 0.2, 1);
      --font:          'Cabin', sans-serif;
    }

    body {
      font-family: var(--font);
      background: var(--bg);
      color: var(--text);
      min-height: 100vh;
      overflow-x: hidden;
    }
    .guides-section {
      max-width: 1380px;
      margin: 0 auto;
      padding: 80px 28px 100px;
    }

    .guides-header {
      text-align: center;
      margin-bottom: 68px;
    }

    .header-badge {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      background: var(--brand-light);
      border: 1.5px solid var(--brand-border);
      color: var(--brand);
      font-family: var(--font);
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      padding: 5px 14px;
      border-radius: 100px;
      margin-bottom: 20px;
    }

    .header-badge::before {
      content: '';
      width: 7px; height: 7px;
      background: var(--brand);
      border-radius: 50%;
      flex-shrink: 0;
    }

    .guides-header h1 {
      font-family: var(--font);
      font-size: clamp(36px, 5.5vw, 62px);
      font-weight: 700;
      color: var(--text);
      line-height: 1.1;
      letter-spacing: -0.02em;
      margin-bottom: 16px;
    }

    .guides-header h1 em {
      font-style: normal;
      color: var(--brand);
      position: relative;
    }

    .guides-header h1 em::after {
      content: '';
      position: absolute;
      left: 0; bottom: -4px;
      width: 100%; height: 3px;
      background: linear-gradient(90deg, var(--brand), var(--brand-dark));
      border-radius: 2px;
      transform: scaleX(0);
      transform-origin: left;
      animation: lineReveal 0.7s var(--ease) 0.5s forwards;
    }

    @keyframes lineReveal { to { transform: scaleX(1); } }

    .guides-header p {
      font-size: 17px;
      color: var(--text-mid);
      max-width: 540px;
      margin: 0 auto 28px;
      line-height: 1.7;
    }

    .stats-row {
      display: inline-flex;
      align-items: center;
      gap: 0;
      background: var(--white);
      border: 1px solid var(--border-strong);
      border-radius: 100px;
      padding: 6px 6px;
      box-shadow: var(--shadow-sm);
    }

    .stat-item {
      padding: 4px 18px;
      font-size: 13px;
      color: var(--text-mid);
      font-weight: 500;
      white-space: nowrap;
    }

    .stat-item strong { color: var(--brand); }

    .stat-sep {
      width: 1px; height: 18px;
      background: var(--border-strong);
      flex-shrink: 0;
    }

    .books-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .book-card {
      display: flex;
      align-items: center;
      gap: 28px;
      padding: 28px;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow-sm);
      cursor: pointer;
      transition: transform 0.3s var(--ease),
                  box-shadow 0.3s var(--ease),
                  border-color 0.3s var(--ease);
      position: relative;
      overflow: hidden;
      opacity: 0;
      transform: translateY(24px);
      animation: cardIn 0.55s var(--ease) forwards;
    }

    .book-card:nth-child(1) { animation-delay: 0.06s; }
    .book-card:nth-child(2) { animation-delay: 0.12s; }
    .book-card:nth-child(3) { animation-delay: 0.18s; }
    .book-card:nth-child(4) { animation-delay: 0.24s; }
    .book-card:nth-child(5) { animation-delay: 0.30s; }
    .book-card:nth-child(6) { animation-delay: 0.36s; }

    @keyframes cardIn { to { opacity: 1; transform: translateY(0); } }

    .book-card::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg,
        rgba(255,255,255,0.6) 0%,
        rgba(255,255,255,0) 60%);
      opacity: 0;
      transition: opacity 0.35s;
      pointer-events: none;
      border-radius: inherit;
    }

    .book-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg), 0 0 0 1px var(--brand-border);
      border-color: var(--brand-border);
      background: var(--surface-hover);
    }

    .book-card:hover::before { opacity: 1; }

    .book-3d {
      flex-shrink: 0;
      width: 120px;
      height: 168px;
      position: relative;
      transform-style: preserve-3d;
      transform: perspective(800px) rotateY(-16deg) rotateX(2deg);
      transition: transform 0.4s var(--ease);
      filter: drop-shadow(0 16px 32px rgba(0,0,0,0.22));
    }

    .book-card:hover .book-3d {
      transform: perspective(800px) rotateY(-26deg) rotateX(3deg) translateX(-5px);
    }

    .b-spine {
      position: absolute;
      left: -14px; top: 0;
      width: 14px; height: 100%;
      border-radius: 3px 0 0 3px;
      transform: rotateY(-90deg);
      transform-origin: right;
    }

    .b-pages {
      position: absolute;
      right: -5px; top: 3px;
      width: 100%; height: 94%;
      background: linear-gradient(to right, #e8e4e0 0%, #f4f2ef 40%, #e8e4e0 100%);
      border-radius: 0 2px 2px 0;
    }

    .b-pages::before {
      content: '';
      position: absolute;
      inset: 0;
      background: repeating-linear-gradient(
        to bottom,
        transparent 0px,
        transparent 5px,
        rgba(0,0,0,0.035) 5px,
        rgba(0,0,0,0.035) 6px
      );
      border-radius: inherit;
    }

    .b-cover {
      width: 100%; height: 100%;
      position: absolute;
      border-radius: 2px 6px 6px 2px;
      padding: 16px 14px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      color: #fff;
      overflow: hidden;
    }

    .b-cover::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg,
        rgba(255,255,255,0.18) 0%,
        rgba(255,255,255,0) 55%,
        rgba(0,0,0,0.06) 100%);
      pointer-events: none;
    }

    .b-cover-title {
      font-size: 13px;
      font-weight: 700;
      line-height: 1.3;
      position: relative;
      z-index: 1;
      font-family: var(--font);
    }

    .b-cover-sub {
      font-size: 8.5px;
      font-weight: 600;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      opacity: 0.75;
      position: relative;
      z-index: 1;
    }

    .book-card:nth-child(1) .b-cover { background: linear-gradient(150deg,#ec6529 0%,#b84515 100%); }
    .book-card:nth-child(1) .b-spine { background: linear-gradient(to bottom,#7a2c0e,#b84515); }
    .book-card:nth-child(2) .b-cover { background: linear-gradient(150deg,#3a80e8 0%,#1b4fa6 100%); }
    .book-card:nth-child(2) .b-spine { background: linear-gradient(to bottom,#0e2e70,#1b4fa6); }
    .book-card:nth-child(3) .b-cover { background: linear-gradient(150deg,#26c97a 0%,#148a4d 100%); }
    .book-card:nth-child(3) .b-spine { background: linear-gradient(to bottom,#0a5830,#148a4d); }
    .book-card:nth-child(4) .b-cover { background: linear-gradient(150deg,#9d52f5 0%,#6618d6 100%); }
    .book-card:nth-child(4) .b-spine { background: linear-gradient(to bottom,#3e0a90,#6618d6); }
    .book-card:nth-child(5) .b-cover { background: linear-gradient(150deg,#f77b18 0%,#b84e0c 100%); }
    .book-card:nth-child(5) .b-spine { background: linear-gradient(to bottom,#7a3006,#b84e0c); }
    .book-card:nth-child(6) .b-cover { background: linear-gradient(150deg,#10c8a6 0%,#087a66 100%); }
    .book-card:nth-child(6) .b-spine { background: linear-gradient(to bottom,#04503f,#087a66); }

    .book-info { flex: 1; min-width: 0; }

    .book-tag {
      display: inline-block;
      background: var(--brand-light);
      color: var(--brand);
      border: 1px solid var(--brand-border);
      font-size: 10px;
      font-weight: 700;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      padding: 2px 9px;
      border-radius: var(--radius-sm);
      margin-bottom: 9px;
    }

    .book-info h2 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text);
      line-height: 1.25;
      margin-bottom: 5px;
    }

    .book-meta {
      font-size: 12px;
      color: var(--text-light);
      margin-bottom: 10px;
      font-weight: 600;
      letter-spacing: 0.03em;
    }

    .book-desc {
      font-size: 14px;
      color: var(--text-mid);
      line-height: 1.65;
      margin-bottom: 18px;
    }

    .book-cta {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      background: var(--brand);
      color: #fff;
      font-family: var(--font);
      font-size: 13px;
      font-weight: 700;
      padding: 9px 20px;
      border-radius: var(--radius-sm);
      text-decoration: none;
      transition: background 0.25s, transform 0.25s, box-shadow 0.25s;
      box-shadow: var(--shadow-brand);
    }

    .book-cta svg { transition: transform 0.25s; }
    .book-cta:hover { background: var(--brand-dark); transform: translateX(3px); color: #fff; }
    .book-cta:hover svg { transform: translateX(4px); }

    .reader-overlay {
      position: fixed;
      inset: 0;
      z-index: 9999;
      display: flex;
      align-items: center;
      justify-content: center;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.35s var(--ease);
    }

    .reader-overlay.open {
      opacity: 1;
      pointer-events: all;
    }

    .reader-backdrop {
      position: absolute;
      inset: 0;
      background: rgba(20, 18, 16, 0.72);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
    }

    .reader-shell {
      position: relative;
      z-index: 1;
      width: min(96vw, 1080px);
      display: flex;
      flex-direction: column;
      transform: scale(0.96) translateY(12px);
      transition: transform 0.38s var(--ease);
    }

    .reader-overlay.open .reader-shell {
      transform: scale(1) translateY(0);
    }

    .reader-toolbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 18px;
      background: rgba(255,255,255,0.96);
      border: 1px solid var(--border);
      border-bottom: none;
      border-radius: var(--radius-xl) var(--radius-xl) 0 0;
      backdrop-filter: blur(12px);
      gap: 14px;
    }

    .toolbar-title {
      font-size: 14px;
      font-weight: 700;
      color: var(--text);
      flex: 1;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .toolbar-center {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-shrink: 0;
    }

    .tb-btn {
      width: 34px; height: 34px;
      display: flex; align-items: center; justify-content: center;
      background: var(--bg);
      border: 1px solid var(--border-strong);
      border-radius: var(--radius-md);
      cursor: pointer;
      color: var(--text-mid);
      transition: background 0.2s, color 0.2s, border-color 0.2s;
      flex-shrink: 0;
    }

    .tb-btn:hover:not(:disabled) { background: var(--brand); border-color: var(--brand); color: #fff; }
    .tb-btn:disabled { opacity: 0.3; cursor: not-allowed; }

    .tb-btn svg,
    .tb-close svg,
    .mob-nav-btn svg,
    .book-cta svg {
      display: inline-block !important;
      visibility: visible !important;
      width: 14px;
      height: 14px;
      stroke: currentColor !important;
      fill: none !important;
      flex-shrink: 0;
    }

    .tb-page-label {
      font-size: 13px;
      font-weight: 600;
      color: var(--text-mid);
      min-width: 52px;
      text-align: center;
    }

    .tb-close {
      padding: 10px !important;
      width: 34px; height: 34px;
      display: flex; align-items: center; justify-content: center;
      background: #fff;
      border: 1px solid var(--border-strong);
      border-radius: 50%;
      cursor: pointer;
      color: var(--text);
      transition: background 0.2s, color 0.2s, transform 0.25s;
      flex-shrink: 0;
    }

    .tb-close:hover { background: var(--brand); color: #fff; border-color: var(--brand); transform: rotate(90deg); }

    .book-stage {
      background: #f0ece8;
      border: 1px solid var(--border);
      border-top: none;
      border-radius: 0 0 var(--radius-xl) var(--radius-xl);
      overflow: hidden;
      position: relative;
    }

    .spread-view {
      display: flex;
      height: clamp(420px, 70vh, 640px);
      position: relative;
    }

    .spread-view::after {
      content: '';
      position: absolute;
      left: 50%; top: 0; bottom: 0;
      width: 2px;
      background: linear-gradient(to bottom,
        rgba(0,0,0,0.0) 0%,
        rgba(0,0,0,0.12) 20%,
        rgba(0,0,0,0.18) 50%,
        rgba(0,0,0,0.12) 80%,
        rgba(0,0,0,0.0) 100%);
      transform: translateX(-50%);
      pointer-events: none;
      z-index: 5;
    }

    .spread-page {
      flex: 1;
      background: #fff;
      padding: 44px 44px 56px;
      position: relative;
      overflow: hidden;
    }

    .spread-page.left-page::after {
      content: '';
      position: absolute;
      right: 0; top: 0; bottom: 0; width: 28px;
      background: linear-gradient(to left, rgba(0,0,0,0.07), transparent);
      pointer-events: none;
    }

    .spread-page.right-page::before {
      content: '';
      position: absolute;
      left: 0; top: 0; bottom: 0; width: 28px;
      background: linear-gradient(to right, rgba(0,0,0,0.07), transparent);
      pointer-events: none;
    }

    .spread-page.left-page  { cursor: w-resize; }
    .spread-page.right-page { cursor: e-resize; }
    .spread-page.left-page.no-prev  { cursor: default; }
    .spread-page.right-page.no-next { cursor: default; }


    .single-view {
      display: none;
      height: clamp(380px, 65vh, 600px);
      background: #fff;
      position: relative;
      overflow: hidden;
    }

    .single-slide {
      position: absolute;
      inset: 0;
      padding: 36px 26px 64px;
      overflow-y: auto;
      transition: transform 0.38s var(--ease), opacity 0.3s;
      will-change: transform;
    }

    .single-slide.exit-left  { transform: translateX(-100%); opacity: 0; }
    .single-slide.exit-right { transform: translateX(100%);  opacity: 0; }
    .single-slide.enter-left  { transform: translateX(100%);  opacity: 0; }
    .single-slide.enter-right { transform: translateX(-100%); opacity: 0; }

    /* ─── PAGE CONTENT STYLES ───────────── */
    .page-inner {
      width: 100%;
      height: 100%;
      overflow-y: auto;
      scrollbar-width: thin;
      scrollbar-color: #ddd6ce transparent;
    }

    .page-inner::-webkit-scrollbar { width: 4px; }
    .page-inner::-webkit-scrollbar-track { background: transparent; }
    .page-inner::-webkit-scrollbar-thumb { background: #d0c8c0; border-radius: 3px; }

    .page-inner.is-cover {
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      text-align: center;
      height: 100%;
    }

    .page-inner.is-cover .cover-label {
      font-size: 10px;
      font-weight: 700;
      letter-spacing: 0.16em;
      text-transform: uppercase;
      color: var(--brand);
      margin-bottom: 18px;
      border: 1px solid var(--brand-border);
      background: var(--brand-light);
      padding: 4px 12px;
      border-radius: 4px;
    }

    .page-inner.is-cover h1 {
      font-family: var(--font);
      font-size: 26px;
      font-weight: 700;
      color: #1a1a18;
      line-height: 1.2;
      letter-spacing: -0.02em;
      margin-bottom: 12px;
    }

    .page-inner.is-cover .cover-sub {
      font-size: 13px;
      color: var(--text-mid);
      line-height: 1.6;
      max-width: 340px;
      margin-bottom: 22px;
    }

    .page-inner.is-cover .cover-author {
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--text-light);
    }

    .page-inner.is-cover .cover-divider {
      width: 40px; height: 3px;
      background: var(--brand);
      border-radius: 2px;
      margin: 16px auto;
    }

    .page-inner h2 {
      font-family: var(--font);
      font-size: 17px;
      font-weight: 700;
      color: var(--brand);
      margin-bottom: 10px;
      line-height: 1.25;
      letter-spacing: -0.01em;
    }

    .page-inner h3 {
      font-family: var(--font);
      font-size: 13px;
      font-weight: 700;
      color: #1a1a18;
      margin: 18px 0 8px;
      letter-spacing: 0.01em;
      text-transform: uppercase;
    }

    .page-inner p {
      font-size: 13px;
      line-height: 1.72;
      color: #3a3530;
      margin-bottom: 10px;
    }

    .page-inner ul {
      list-style: none;
      padding: 0;
      margin-bottom: 12px;
    }

    .page-inner li {
      position: relative;
      padding-left: 15px;
      margin-bottom: 6px;
      font-size: 13px;
      line-height: 1.6;
      color: #3a3530;
    }

    .page-inner li::before {
      content: '';
      position: absolute;
      left: 0; top: 7px;
      width: 5px; height: 5px;
      background: var(--brand);
      border-radius: 50%;
      opacity: 0.75;
    }

    .ch-divider {
      border: none;
      border-top: 1px solid #ede8e3;
      margin: 16px 0;
    }

    .callout {
      background: var(--brand-light);
      border-left: 3px solid var(--brand);
      border-radius: 0 6px 6px 0;
      padding: 10px 12px;
      margin: 12px 0;
    }

    .callout p {
      font-size: 12.5px;
      color: #5a2d10;
      margin: 0;
      font-weight: 600;
      line-height: 1.55;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 12px;
      margin: 10px 0 14px;
    }

    .compare-table th {
      background: var(--brand);
      color: #fff;
      padding: 7px 10px;
      text-align: left;
      font-weight: 700;
      font-size: 11px;
      letter-spacing: 0.04em;
    }

    .compare-table td {
      padding: 6px 10px;
      border-bottom: 1px solid #ede8e3;
      color: #3a3530;
      vertical-align: top;
    }

    .compare-table tr:nth-child(even) td { background: #faf8f5; }

    .step-list { list-style: none; padding: 0; margin-bottom: 12px; }

    .step-list li {
      padding-left: 0;
      margin-bottom: 7px;
      font-size: 13px;
      line-height: 1.6;
      color: #3a3530;
    }

    .step-list li::before { display: none; }

    .step-list li strong { color: var(--brand); }

    .cta-block {
      background: linear-gradient(135deg, #fdf2eb 0%, #fff7f2 100%);
      border: 1.5px solid var(--brand-border);
      border-radius: 10px;
      padding: 18px 16px;
      text-align: center;
      margin-top: 10px;
    }

    .cta-block h3 {
      font-size: 15px;
      color: var(--brand);
      margin-bottom: 8px;
      text-transform: none;
    }

    .cta-block p { font-size: 12.5px; color: #5a5858; margin-bottom: 10px; }

    .cta-block ul { text-align: left; max-width: 260px; margin: 0 auto 12px; }

    .cta-btn {
      display: inline-block;
      background: var(--brand);
      color: #fff;
      font-family: var(--font);
      font-size: 12px;
      font-weight: 700;
      padding: 8px 20px;
      border-radius: 6px;
      text-decoration: none;
      letter-spacing: 0.03em;
    }


    .page-num {
      position: absolute;
      bottom: 18px;
      font-size: 11px;
      color: #c0b8b0;
      font-weight: 600;
      letter-spacing: 0.06em;
      font-family: var(--font);
    }

    .spread-page.left-page  .page-num { right: 22px; }
    .spread-page.right-page .page-num { left: 22px; }
    .single-view .page-num { left: 50%; transform: translateX(-50%); }

    .reader-mobile-bar {
      display: none;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      padding: 12px 16px;
      background: rgba(255,255,255,0.95);
      border: 1px solid var(--border);
      border-top: none;
      border-radius: 0 0 var(--radius-xl) var(--radius-xl);
      backdrop-filter: blur(10px);
    }

    .mob-nav-btn {
      flex: 1;
      padding: 9px 0;
      background: var(--brand);
      color: #fff;
      border: none;
      border-radius: var(--radius-sm);
      font-family: var(--font);
      font-size: 13px;
      font-weight: 700;
      cursor: pointer;
      transition: background 0.2s, opacity 0.2s;
    }

    .mob-nav-btn:disabled { background: #d8d5d0; opacity: 0.6; cursor: not-allowed; }
    .mob-nav-btn:not(:disabled):hover { background: var(--brand-dark); }

    .mob-page-info {
      font-size: 13px;
      color: var(--text-mid);
      font-weight: 600;
      text-align: center;
      min-width: 54px;
    }

    .swipe-hint {
      position: absolute;
      bottom: 42px;
      left: 50%; transform: translateX(-50%);
      display: none;
      align-items: center;
      gap: 6px;
      font-size: 11px;
      color: var(--text-light);
      font-weight: 600;
      letter-spacing: 0.04em;
      white-space: nowrap;
      animation: fadeHint 3s ease 1.5s forwards;
      opacity: 0;
    }

    .swipe-hint svg {
      display: inline-block !important;
      visibility: visible !important;
      stroke: currentColor !important;
      fill: none !important;
    }

    @keyframes fadeHint {
      0%   { opacity: 0; }
      15%  { opacity: 0.8; }
      75%  { opacity: 0.8; }
      100% { opacity: 0; }
    }

    @media (min-width: 1200px) {
      .books-grid { grid-template-columns: repeat(2, 1fr); }
    }

    @media (min-width: 900px) and (max-width: 1199px) {
      .books-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
      .book-card  { padding: 24px; gap: 22px; }
    }

    @media (min-width: 600px) and (max-width: 899px) {
      .books-grid { grid-template-columns: 1fr; gap: 18px; }
      .book-card  { padding: 24px; gap: 22px; }
      .guides-section { padding: 70px 20px 80px; }
    }

    @media (max-width: 760px) {
      .spread-view       { display: none !important; }
      .single-view       { display: block !important; }
      .reader-mobile-bar { display: flex !important; }
      .swipe-hint        { display: flex !important; }
      .toolbar-center    { display: none; }
      .reader-shell      { width: 97vw; }
    }

    @media (max-width: 599px) {
      .guides-section { padding: 89px 14px 70px; }
      .books-grid     { grid-template-columns: 1fr; gap: 14px; }
      .book-card      { flex-direction: column; align-items: flex-start; gap: 20px; padding: 22px; }
      .book-3d        { transform: perspective(800px) rotateY(-10deg) rotateX(1deg) !important; align-self: center; }
      .book-info h2   { font-size: 18px; }
      .guides-header h1 { font-size: 32px; }
      .stats-row      { flex-direction: column; border-radius: var(--radius-lg); padding: 10px 16px; gap: 4px; }
      .stat-sep       { width: 100%; height: 1px; }
      .stat-item      { padding: 2px 0; }
      .reader-shell   { width: 100vw; }
      .reader-toolbar { border-radius: 0; }
      .book-stage     { border-radius: 0; }
      .reader-mobile-bar { border-radius: 0; }
      .single-view    { height: calc(100vh - 138px); }
      .single-slide   { padding: 28px 18px 58px; }
    }

    @media (max-width: 399px) {
      .book-3d { width: 100px; height: 140px; }
      .b-cover-title { font-size: 11px; }
    }