/* 基础样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* 网页字体及背景 */
html {
  background: #333 fixed center url("https://source.unsplash.com/random/1920x1080/?library,books");
  background-size: cover;
  color: #fff;
  font-size: 48px;
  font-size: 2.7vw;
  font-family: Ubuntu, 'Microsoft YaHei', sans-serif;
}

@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
}

body {
  background: transparent fixed center;
  background-size: cover;
}

/* 分散对齐 */
.space-between {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
}

.space {
  margin: 0 -.2em;
}

.space>* {
  margin: 0 .2em;
}

/* 一级淡文本（保留字体颜色） */
.dim {
  opacity: .75;
  font-size: .75em;
}

/* 二级淡文本 */
.sub {
  color: rgb(255 255 255 / 75%);
  font-size: .6em;
}

/* 倾斜元素 */
.skew {
  transform: skew(-15deg);
}

.reskew {
  transform: skew(15deg);
}

/* 选中 */
::selection {
  background: rgb(255 255 255 / 10%);
  text-shadow: #7af -.05em -.01em .1em, #a7f .05em .01em .1em;
}

/* 启动动画 */
#coverLaunch {
  display: flex;
  position: fixed;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 3;
  animation: whiteSplash 2.5s forwards;
  inset: 0;
  background: #fff fixed center url("https://source.unsplash.com/random/1920x1080/?books") no-repeat;
  background-size: cover;
  padding: 1rem;
  pointer-events: none;
  color: #333;
  font-size: 1em;
  text-align: center;
}

#coverLaunch p {
  font-size: 1.5em;
  font-weight: bold;
  text-shadow: 0 0 15px rgba(255, 255, 255, 1);
  max-width: 80%;
  line-height: 1.2;
}

@keyframes whiteSplash {
  0% {
    filter: brightness(10);
  }
  50% {
    filter: brightness(1);
  }
  90% {
    opacity: 1;
  }
  100% {
    display: none;
    opacity: 0;
  }
}

/* 过渡封面 */
#cover {
  display: none;
  position: fixed;
  flex-direction: column;
  justify-content: space-between;
  z-index: 2;
  transition: .2s;
  inset: 0;
  background: #000 fixed center url("https://t.alcy.cc/fj");
  background-size: cover;
}

#cover>* {
  margin: .5rem 1rem;
}

#coverMask {
  position: absolute;
  z-index: -1;
  backdrop-filter: blur(.2rem);
  margin: 0;
  inset: 0;
  background: rgb(0 0 0 / 50%);
}

.coverMain {
  display: flex;
  justify-content: center;
}

.coverMain>.info {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.coverMain>.info>.title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: .5rem;
  background: #222;
  padding: .1rem .3rem;
  min-width: 36vw;
}

#coverBadge {
  background: #fff;
  height: calc(100% + .6rem);
  color: #222;
}

#coverBadge>.reskew {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 3em;
  height: 100%;
}

.coverMain>.info>.desc {
  display: flex;
  justify-content: space-between;
  margin: .5rem;
  background: #222;
  padding: .1rem .3rem;
  min-width: 36vw;
}

.coverMain>.info>.desc>p {
  margin: .2rem;
}

.coverMain>.cover {
  margin: .5rem;
  background: #222;
  width: 36vw;
  height: 20vw;
}

#coverImage {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
}

.loadingBar {
  position: relative;
}

.loadingBar::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, transparent, #fff, transparent);
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* 主体内容 */
#main {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: rgb(0 0 0 / 50%);
  backdrop-filter: blur(5px);
  min-height: 100vh;
  animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* 主体元素间距 */
#main>* {
  margin: .5rem 1rem;
}

/* 通知气泡 */
.notify {
  top: 0;
  z-index: 1;
}

/* 通知气泡元素 */
.notify>div {
  display: none;
  animation: fade .5s;
  margin: .2rem auto;
  border-radius: .2rem;
  background: rgb(0 0 0 / 50%);
  padding: .5rem 1rem;
  max-width: 90%;
}

@keyframes fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* 消息气泡 */
#msg {
  border-left: .2rem solid #29f;
}

/* 按钮 */
.btn {
  display: inline-block;
  border-radius: .2rem;
  background: rgb(255 255 255 / 10%);
  padding: .2rem .5rem;
  cursor: pointer;
  user-select: none;
  transition: .2s;
}

.btn:hover {
  background: rgb(255 255 255 / 20%);
}

/* 下拉菜单 */
.dropdown {
  position: relative;
}

.dropdown>div {
  display: none;
  position: absolute;
  right: 0;
  z-index: 1;
  border-radius: .2rem;
  background: rgb(0 0 0 / 75%);
  padding: .2rem;
  min-width: 5em;
}

.dropdown:hover>div {
  display: block;
}

.dropdown>div>a {
  display: block;
  border-radius: .1rem;
  padding: .1rem .3rem;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  transition: .2s;
}

.dropdown>div>a:hover {
  background: rgb(255 255 255 / 10%);
}

/* 搜索容器 */
.search-container {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 1rem 0;
  background: rgb(0 0 0 / 30%);
  padding: 1rem;
  border-radius: 8px;
}

#bookName {
  flex: 1;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 4px;
  font-size: 0.6em;
  background: rgb(255 255 255 / 10%);
  color: white;
  min-width: 200px;
}

.quantity-selector {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgb(255 255 255 / 10%);
  padding: 0.5rem 1rem;
  border-radius: 4px;
}

#quantity {
  width: 100px;
  padding: 0.2rem;
  border: none;
  background: transparent;
  color: white;
  font-size: 0.6em;
  text-align: center;
  -moz-appearance: textfield;
}

#quantity::-webkit-outer-spin-button,
#quantity::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

#searchBtn {
  padding: 0.5rem 1.5rem;
  background: rgb(41, 121, 255, 0.8);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.6em;
  transition: background-color 0.3s;
}

#searchBtn:hover {
  background: rgb(41, 121, 255, 1);
}

/* 加载动画 */
.loading {
  display: none;
  flex-direction: column;
  align-items: center;
  margin: 2rem 0;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 5px solid rgba(255, 255, 255, 0.1);
  border-top-color: #29f;
  border-radius: 50%;
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading p {
  margin-top: 1rem;
  font-size: 0.6em;
}

/* 结果容器 */
.results-container {
  display: none;
  margin: 1rem 0;
  background: rgb(0 0 0 / 30%);
  padding: 1rem;
  border-radius: 8px;
}

.results-container h2 {
  margin-bottom: 1rem;
  font-size: 0.8em;
  color: #29f;
  display: inline-block;
  background: rgb(0 0 0 / 50%);
  padding: 0.3rem 1rem;
}

.result-count {
  margin-bottom: 1rem;
  font-size: 0.6em;
  color: rgba(255, 255, 255, 0.7);
}

#results {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.books-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  width: 100%;
}

.book-item {
  background: rgb(0 0 0 / 30%);
  padding: 0.7rem;
  border-radius: 8px;
  border-left: 4px solid #29f;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease, box-shadow 0.3s ease;
  height: auto;
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.book-item:hover {
  box-shadow: 0 4px 12px rgba(41, 153, 255, 0.3);
  background: rgb(0 0 0 / 40%);
}

.book-item.show {
  opacity: 1;
  transform: translateY(0);
}

.book-title {
  font-size: 0.7em;
  margin-bottom: 0.3rem;
  color: #29f;
  line-height: 1.2;
}

.book-author, .book-publisher {
  font-size: 0.5em;
  margin-bottom: 0.2rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.2;
}

.book-details {
  display: flex;
  margin-top: 0.3rem;
  font-size: 0.5em;
  color: rgba(255, 255, 255, 0.6);
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.book-detail {
  background: rgb(255 255 255 / 10%);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  line-height: 1.1;
  display: flex;
  align-items: center;
  word-break: break-word;
}

.book-detail:first-child {
  flex-basis: 100%;
  flex-shrink: 0;
  min-height: 1.5em;
  overflow-wrap: break-word;
  word-wrap: break-word;
  word-break: break-all;
}

.book-detail-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.no-results {
  text-align: center;
  font-size: 0.7em;
  color: rgba(255, 255, 255, 0.7);
  padding: 2rem;
  background: rgb(0 0 0 / 20%);
  border-radius: 8px;
}

/* 通知提示 */
#notification {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(41, 153, 255, 0.9);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  font-size: 0.6em;
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

#notification.show {
  opacity: 1;
}

/* 媒体查询 */
@media (max-width: 1200px) {
  .books-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .quantity-selector {
    justify-content: space-between;
  }
  
  #quantity {
    width: 70%;
  }
}

/* 返回顶部按钮 */
#backToTop {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  background: rgba(41, 153, 255, 0.8);
  color: white;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.3s, background-color 0.3s;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

#backToTop.show {
  opacity: 1;
}

#backToTop:hover {
  background: rgba(41, 153, 255, 1);
}

/* 修改数量选择器样式 */
.quantity-selector {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgb(255 255 255 / 10%);
  padding: 0.5rem 1rem;
  border-radius: 4px;
}

#quantity {
  width: 120px; /* 增加宽度 */
  padding: 0.2rem;
  border: none;
  background: transparent;
  color: white;
  font-size: 0.6em;
  text-align: center;
  -moz-appearance: textfield;
}

#quantity::-webkit-outer-spin-button,
#quantity::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

#searchBtn {
  padding: 0.5rem 1.5rem;
  background: rgb(41, 121, 255, 0.8);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.6em;
  transition: background-color 0.3s;
}

#searchBtn:hover {
  background: rgb(41, 121, 255, 1);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  #bookName, .quantity-selector, #searchBtn {
    width: 100%;
  }
  
  .books-grid {
    grid-template-columns: 1fr;
  }
  
  .book-item {
    margin-bottom: 1rem;
  }
  
  .book-details {
    flex-direction: column;
    gap: 8px;
  }
  
  .book-detail {
    width: 100%;
  }
  
  #notification {
    width: 80%;
    right: 10%;
    text-align: center;
  }
  
  #coverLaunch p {
    font-size: 2em;
    max-width: 90%;
  }
}

/* 页脚版权信息 */
footer p {
  font-size: 0.4em;
}

footer p.dim {
  font-size: 0.4em;
  opacity: .75;
}

#notification.show {
  transform: translateX(0);
}

/*