header {
  width: 100%;
  height: 24px;
  background-color: #555;
}
header .left {
  display: flex;
  float: left;
  width: 160px;
  height: 24px;
  margin-left: 4px;
  justify-content: space-around;
  align-items: center;
}

/* 相同的元素，仅作理解之用 */
header .right,
header #accDiv {
  display: flex;
  float: right;
  width: 100px;
  height: 24px;
  justify-content: space-around;
  align-items: center;
  color: #c3c3c3;
}

header a {
  color: #c3c3c3;
}

header a:hover {
  color: #d5d5d5;
}

.top {
  width: 100%;
  background: linear-gradient(to bottom, #f0cd87, #c7902b);
}

.top .main {
  position: relative;
  width: 1000px;
  margin: 0 auto;
  height: 144px;
  background: url(../img/topimg.png) no-repeat center right / 170px 170px;
}

.top .main .title {
  position: absolute;
  font-size: 42px;
  font-weight: bold;
  top: 30px;
  left: 15px;
  background: linear-gradient(270deg, #f0cd87, #c7902b);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: -4px -4px 1px #8d6624;
}

.top .main .se {
  position: absolute;
  font-size: 20px;
  font-weight: bold;
  top: 80px;
  left: 260px;
  color: #8d6624;
}

.container::before {
  position: absolute;
  top: 0;
  left: 0;
  z-index: -1;
  content: "";
  width: 1100px;
  height: calc(100% + 100px);
  background: url(../img/bg.png);
  opacity: 0.5;
}
.container {
  position: relative;
  width: 1100px;
  margin: 10px auto;
}

.banner {
  height: 475px;
}

.container .banner .left {
  float: left;
  margin-top: 30px;
  margin-left: 60px;
}

.container .banner .left .title {
  font-size: 38px;
  font-weight: bold;
  line-height: 2em;
}

.container .banner .left p {
  font-size: 16px;
  text-indent: 2em;
  font-weight: bold;
  line-height: 1.8em;
}

.container .banner .left span {
  font-weight: normal;
}

.container #excerpts {
  position: relative;
  width: 500px;
  height: 190px;
  border: 1px solid black;
  margin-top: 26px;
  margin-left: 10px;
  animation-duration: 1.6s;
  animation-name: borderWid_excerpts;
  animation-fill-mode: forwards;
  /* animation-timing-function: linear; */
}

@keyframes borderWid_excerpts {
  0% {
    opacity: 0;
    width: 0px;
    height: 0px;
  }

  83% {
    opacity: 0.5;
    width: 510px;
    height: 200px;
  }

  100% {
    opacity: 1;
    width: 500px;
    height: 190px;
  }
}

#borderanimBef,
#borderanimAft {
  opacity: 0;
  content: "";
  position: absolute;
  z-index: -1;
  width: 20px;
  height: 20px;
}

#borderanimBef {
  transition: top 0.4s, width 3s, opacity 1.2s, height 3s;
  top: -10px;
  left: -5px;
  border-top: 1px solid black;
  border-left: 1px solid black;
}

#borderanimAft {
  transition: bottom 0.4s, width 3s, opacity 1.2s, height 3s;
  right: -5px;
  bottom: -10px;
  border-bottom: 1px solid black;
  border-right: 1px solid black;
}

/* #excerpts:hover #borderanimBef,
#excerpts:hover #borderanimAft {
  animation-duration: 3s;
  animation-name: borderWid;
  animation-fill-mode: forwards;
  animation-direction: reverse;
  animation-timing-function: linear;
}

@keyframes borderWid {
  from {
    width: 20px;
    height: 20px;
  }

  to {
    width: calc(100% + 9px);
    height: calc(100% + 9px);
  }
}

@keyframes reborderWid {
  from {
    width: var(--borderWid);
    height: var(--borderHei);
  }

  to {
    width: 20px;
    height: 20px;
  }
} */

#excerpts #excerpts_main {
  opacity: 0;
  transition: opacity 1.2s;
}

#excerpts #excerpts_main .title {
  font-size: 20px;
  line-height: 1.6em;
  font-weight: bold;
  margin-left: 10px;
}

#excerpts #excerpts_main .text {
  font-size: 12px;
  line-height: 1.4em;
  padding: 0 10px;
  color: #818181;
  font-weight: normal;
}

#excerpts #excerpts_main .footer::before {
  position: absolute;
  top: 8px;
  content: "";
  width: 25px;
  height: 1px;
  color: #818181;
  border-top: 1px solid #818181;
}

#excerpts #excerpts_main .footer {
  position: relative;
  font-size: 12px;
  line-height: 1.6em;
  padding: 12px 10px;
  color: #818181;
  font-weight: normal;
  text-shadow: 1px 1px 5px #818181;
}

.container .banner #banner_right {
  position: relative;
  float: right;
  margin-top: 50px;
  margin-right: 50px;
  overflow: hidden;
  animation-duration: 1.4s;
  animation-name: coverDivAnim;
  animation-fill-mode: forwards;
  transition: box-shadow 0.6s;
}

.container .banner #banner_right #cover {
  width: 300px;
  height: 419px;
  animation-duration: 2s;
  animation-name: coverAnim;
  animation-fill-mode: forwards;
}

.container .banner .cover {
  position: relative;
  transition: all 0.6s;
}

.container .banner .cover:hover {
  filter: blur(1px);
}

.container .banner #banner_right:hover {
  box-shadow: 3px 3px 8px rgba(0, 0, 0, 0.5);
}

.container .banner .zs {
  visibility: hidden;
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 1;
  color: rgb(207, 207, 207);
  text-align: center;
  line-height: 20px;
  width: 300px;
  height: 20px;
  background: rgba(0, 0, 0, 0.3);
  transition: all 0.6s;
  opacity: 0;
}

.container .banner #banner_right:hover .zs {
  visibility: visible;
  animation-duration: 0.6s;
  animation-name: coverZs;
  opacity: 1;
  transition: all 0.6s;
}

@keyframes coverDivAnim {
  from {
    width: 0;
    height: 0;
  }

  to {
    width: 300px;
    height: 419px;
  }
}

@keyframes coverAnim {
  0% {
    opacity: 0.3;
    filter: grayscale(0.7) blur(2px);
  }

  50% {
    opacity: 0.6;
    filter: grayscale(0.4) blur(1px);
  }

  100% {
    opacity: 1;
    filter: grayscale(0) blur(0);
  }
}

@keyframes coverZs {
  from {
    bottom: -20px;
  }

  to {
    bottom: 0;
  }
}

.introduction,
.author_info,
.more_book,
.reason,
.commnetDiv {
  position: relative;
  margin-top: 20px;
  margin-left: 60px;
}

.introduction .title,
.author_info .title,
.more_book .title,
.reason .title,
.commnetDiv .title {
  position: relative;
  font-size: 26px;
  line-height: 2em;
}

.introduction .title::after,
.author_info .title::after,
.more_book .title::after,
.reason .title::after {
  position: absolute;
  left: 0;
  top: 46px;
  content: "";
  width: 100px;
  height: 1px;
  border-bottom: 3px solid #c7902b;
  animation-duration: 1.3s;
  animation-name: underlineAnim;
  animation-fill-mode: forwards;
}

@keyframes underlineAnim {
  from {
    width: 0;
  }

  to {
    width: 100px;
  }
}

.introduction .main,
.author_info .main {
  width: 800px;
  margin-top: 15px;
}

.introduction .main .text,
.author_info .main .text {
  font-size: 14px;
  text-indent: 2em;
  line-height: 1.4em;
  margin-bottom: 10px;
}

.author_info .photo {
  position: absolute;
  top: 88px;
  right: 56px;
  width: 180px;
  opacity: 0.8;
}

.more_book .subtitle {
  font-size: 14px;
  color: #737579;
  text-indent: 2em;
  line-height: 1.8em;
}

.more_book .main {
  width: 900px;
  margin-top: 8px;
}

.more_book .main .item_left {
}

.more_book .main .book_title {
  font-size: 26px;
  line-height: 1.2em;
}

.more_book .main .book_subtitle {
  font-size: 12px;
  color: #737579;
  margin-bottom: 10px;
}

.more_book .main img {
  width: 160px;
  height: 235px;
  margin-right: 18px;
  margin-top: 10px;
  box-shadow: 3px 3px 5px rgba(0, 0, 0, 0.5);
}

.more_book .main .left_img {
  float: left;
}

.more_book .main .right_img {
  float: right;
}

.more_book .main .item_right .book_title,
.more_book .main .item_right .book_subtitle {
  text-align: right;
}
.more_book .main .item_right .book_subtitle {
  margin-bottom: 16px;
}

.more_book .main .item_right img {
  margin-right: 0;
  margin-left: 18px;
}

.more_book .main .text {
  font-size: 14px;
  line-height: 1.2em;
  text-indent: 2em;
  margin-bottom: 4px;
}

.more_book .main .item_right {
  margin-left: 50px;
}
.more_book .main .item_right .text {
  text-indent: -2.6em;
  line-height: 1.6em;
}
.more_book .main .item_right .bold {
  text-indent: -2em;
}

.more_book .main .bold {
  font-weight: bold;
  font-size: 14px;
  line-height: 1.5em;
  text-indent: 2em;
  margin-bottom: 4px;
}
.reason .main {
  width: 900px;
  height: 60px;
  margin-top: 15px;
  overflow: hidden;
  transition: height 1s;
}
.reason .text {
  font-size: 16px;
  line-height: 1.6em;
  text-indent: 2em;
  margin-bottom: 4px;
}

.reason::after {
  position: absolute;
  left: 40px;
  bottom: -5px;
  content: "";
  width: 900px;
  height: 1px;
  border-top: 1px solid rgba(160, 160, 160, 0.5);
}

.tmpp {
  float: right;
  width: 200px;
  margin-top: 20px;
}

#more_reason i {
  font-style: normal;
  font-weight: bold;
  color: #c7902b;
  cursor: pointer;
}

#more_reason i:hover {
  text-decoration: underline;
}

.comment {
  position: relative;
  width: 900px;
  margin: 0 auto;
  margin-top: 30px;
}

.comment .textarea {
  position: absolute;
  top: 0;
  left: 30px;
  resize: none;
  width: 505px;
  height: 142px;
  background-color: rgba(255, 255, 255, 0.5);
  font-size: 14px;
  line-height: 1.2em;
  box-sizing: border-box;
  padding-left: 6px;
  padding-top: 6px;
  border-radius: 8px;
  outline: none;
  /* overflow: hidden; */
}

.comment .textarea:focus {
  border: 1px solid #8d6624;
}

.comment button {
  position: absolute;
  z-index: 1;
  top: 105px;
  left: 550px;
  width: 120px;
  height: 30px;
  cursor: not-allowed;
}

.comment .not_dl {
  position: absolute;
  top: 0;
  left: 550px;
  width: 338px;
  height: 130px;
  background: url(../img/gril.png) no-repeat right top/ 86px 130px;
  font-size: 28px;
  font-weight: bold;
  text-indent: 1em;
  padding-top: 20px;
}

.comment .not_dl span {
  position: absolute;
  top: 56px;
  left: 208px;
  font-size: 12px;
  font-weight: bold;
  color: #c7902b;
  cursor: pointer;
  text-indent: 0;
}

.comment .not_dl span:hover {
  background-color: #f0cd87;
}

.comment .user_icon {
  position: relative;
  display: inline-block;
  background-color: #c7902b;
  color: #333;
  width: 130px;
  height: 130px;
  border-radius: 65px;
  font-size: 48px;
  line-height: 130px;
  text-align: center;
  vertical-align: text-bottom;
  cursor: default;
  user-select: none;
}

.comment .com_top {
  position: relative;
  height: 190px;
  margin-bottom: 60px;
}

.comment .com_top .text_count {
  position: absolute;
  right: 370px;
  bottom: 52px;
  font-size: 12px;
  color: #818181;
}

.comment .com_top .radioDiv {
  position: absolute;
  left: 195px;
  bottom: 28px;
  border: none;
}

.comment .com_top .radioDiv span {
  margin-right: 10px;
}

.comment .com_top .radioDiv input {
  cursor: pointer;
}

.comment .com_top .radioDiv label {
  user-select: none;
  cursor: pointer;
}

.comment .com_top::after {
  position: absolute;
  left: 0;
  bottom: 0;
  content: "";
  width: 900px;
  height: 1px;
  border-top: 1px solid rgba(160, 160, 160, 0.5);
}

.comment .com_box h3 {
  font-size: 20px;
  margin-bottom: 20px;
}
.comment .com_box h3 span {
  font-size: 16px;
  margin-left: 8px;
}

.comment .com_box h3 span i {
  font-style: normal;
  font-weight: bold;
  color: #c7902b;
  cursor: pointer;
}

.comment .com_box h3 span i:hover {
  text-decoration: underline;
}

.comment .not_com {
  position: relative;
  width: 900px;
  height: 150px;
  border-top: 1px solid rgba(160, 160, 160, 0.5);
  border-bottom: 1px solid rgba(160, 160, 160, 0.5);
  margin-bottom: 30px;
  font-size: 14px;
  text-align: center;
  line-height: 150px;
  color: #666;
}

.comment .com_box .illustrateDiv {
  width: 0;
  margin: 0 auto;
  height: 0;
  border-bottom: 1px solid rgba(160, 160, 160, 0.5);
  overflow: hidden;
  font-size: 14px;
  text-align: center;
  color: #666;
  white-space: nowrap;
  transition: all 1s;
}

.comment .com_box .illustrateDiv p:nth-of-type(1) {
  margin-top: 30px;
}

.comment .main {
  position: relative;
  width: 900px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(160, 160, 160, 0.5);
  margin-bottom: 30px;
}

.comment .main .left {
  float: left;
  width: 130px;
}

.comment .main .left p {
  font-size: 16px;
  line-height: 1em;
  font-weight: bold;
  text-align: center;
}

.comment .main .right {
  float: left;
  width: 770px;
}

.comment .main .right .com_text {
  font-size: 14px;
  padding-left: 20px;
  padding-top: 50px;
}

.comment .main .right .com_score {
  display: inline-block;
  font-size: 12px;
  color: #555;
  padding-left: 20px;
  padding-top: 6px;
}

.comment .main .right .com_time {
  position: absolute;
  left: 780px;
  bottom: 8px;
  font-size: 12px;
  color: #666;
}

.comment .com_box .com_more {
  text-align: right;
}

.comment .com_box .com_more a:hover,
.comment .main .right .com_del:hover {
  text-decoration: underline;
}

.comment .main .right .com_del {
  position: absolute;
  left: 748px;
  bottom: 8px;
  font-size: 12px;
  color: #666;
  cursor: pointer;
}

footer {
  width: 100%;
  height: 70px;
  background-color: #555;
  margin-top: 100px;
  padding-top: 30px;
  font-size: 14px;
  line-height: 1.4em;
  text-align: center;
  color: #c3c3c3;
}