/* ========================
   天拓社稷门 - 日式美学阅读器
   Natural-Page.css
======================== */

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@400;500;600;700&family=Shippori+Mincho:wght@400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500&display=swap');

:root {
  /* 日式传统色系 */
  --sumi-iro: #1c1c1c;          /* 墨色 */
  --kuro: #2b2b2b;              /* 黑 */
  --shironezumi: #bdc0ba;       /* 鼠色 */
  --ginsusabi: #91989f;         /* 银鼠 */
  --aizome: #5d6270;            /* 蓝染 */
  --kakitsubata: #6d5f53;       /* 杜若 */
  --yanagisusutake: #4a4843;    /* 柳煤竹 */
  --usu: #b28c6e;               /* 薄 */
  --usuzakura: #e8d3c7;         /* 薄樱 */
  --shironeri: #f3f3f2;         /* 白练 */
  
  /* 功能色 */
  --akabeni: #c53d43;           /* 赤红 - 重点色 */
  --kohaku: #c17d41;            /* 琥珀 - 辅助色 */
  
  /* 间距系统 */
  --ma-1: 0.25rem;
  --ma-2: 0.5rem;
  --ma-3: 1rem;
  --ma-4: 1.5rem;
  --ma-5: 2rem;
  --ma-6: 3rem;
}

/* === 基础重置 === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body, html {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  font-family:   'LXGW WenKai Screen', 'Source Han Serif SC', 'Source Han Serif TC', 'Noto Serif SC', 'Noto Serif TC', 'Hiragino Mincho ProN', 'Yu Mincho', serif;
  background: 
    linear-gradient(135deg, var(--shironeri) 0%, var(--usuzakura) 100%),
    url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" opacity="0.02"><path d="M0,0 L100,100 M100,0 L0,100" stroke="%235d6270" stroke-width="0.5"/></svg>');
  color: var(--sumi-iro);
  line-height: 1.8;
  letter-spacing: 0.05em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* === 容器 - 卷轴意境 === */
.reader-container {
  width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  padding: var(--ma-6) var(--ma-4);
  background: 
    radial-gradient(ellipse at center, transparent 0%, rgba(255,255,255,0.3) 100%),
    linear-gradient(to bottom, transparent 95%, var(--usuzakura) 100%);
}

.reader-container::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="60" height="60" opacity="0.03"><rect fill="%235d6270" width="60" height="60"/></svg>');
  pointer-events: none;
  z-index: -1;
}

/* === 页面基础样式 === */
.page {
  width: 100%;
  max-width: 800px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border: 1px solid var(--shironezumi);
  border-radius: 2px;
  position: relative;
  box-shadow: 
    0 4px 20px rgba(0, 0, 0, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.page::before {
  content: '';
  position: absolute;
  top: 0;
  left: 40px;
  right: 40px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--shironezumi), transparent);
}

/* === 前页 === */
.front-page {
  padding: var(--ma-6) var(--ma-5);
  text-align: center;
  background: 
    linear-gradient(135deg, rgba(255,255,255,0.95) 0%, rgba(248,246,250,0.98) 100%),
    url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" opacity="0.05"><rect fill="%235d6270" width="20" height="20"/></svg>');
  border: none;
  box-shadow: none;
}

.front-page::before {
  display: none; 
}

.front-page header {
  margin-bottom: var(--ma-6);
  position: relative;
}

.front-page h1 {
  font-size: 2.4em;
  font-weight: 700;
  color: var(--yanagisusutake);
  margin-bottom: var(--ma-3);
  line-height: 1.4;
  text-shadow: 0 2px 4px rgba(0,0,0,0.1);
  position: relative;
  display: inline-block;
}

.front-page h1::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--akabeni), transparent);
}

.front-page p {
  font-size: 1.2em;
  color: var(--aizome);
  margin-bottom: var(--ma-4);
  font-weight: 400;
  letter-spacing: 0.1em;
}

/* === 时间信息样式 === */
.publication-info h5 {
  font-family: inherit; /* 继承您原有的优美字体 */
  font-weight: 300; /* 细字体更显精致 */
  margin-bottom: var(--ma-2);
  line-height: 1.8; /* 宽松行高 */
  letter-spacing: 0.15em; /* 字间距增加优雅感 */
  color: var(--yanagisusutake);
  opacity: 0.8; /* 半透明显得轻盈 */
}

.publication-info .era-date {
  font-size: 0.75em;
  font-style: normal;
  text-transform: full-width; /* 全角字符更日式 */
}

.publication-info .modern-date {
  font-size: 0.65em;
  opacity: 0.6;
  margin-top: -0.2em; /* 与上文更贴近 */
}

/* === 角色卡片 - 无框线条动画 === */
.character-cards {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--ma-4);
  margin: var(--ma-5) 0;
}

.card {
  background: transparent;
  border: none;
  border-radius: 0;
  padding: var(--ma-4) var(--ma-5);
  min-width: 180px;
  text-align: center;
  box-shadow: none;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--akabeni), var(--kohaku));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.card::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--kohaku), var(--akabeni));
  transform: scaleX(0);
  transition: transform 0.3s ease 0.1s;
}

.card:hover::before,
.card:hover::after {
  transform: scaleX(1);
}

.card:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.5);
}

.card b {
  display: block;
  font-size: 1.1em;
  margin-bottom: var(--ma-2);
  color: var(--yanagisusutake);
  font-weight: 600;
  letter-spacing: 0.08em;
}

.card span {
  font-size: 0.9em;
  color: var(--aizome);
  line-height: 1.6;
  font-weight: 400;
}

/* === 无框线条风格 === */
button {
  font-family:  'LXGW WenKai Screen', 'Source Han Serif SC', 'Source Han Serif TC', 'Noto Serif SC', 'Noto Serif TC', 'Hiragino Mincho ProN', 'Yu Mincho', sans-serif;
  font-size: 0.95em;
  padding: var(--ma-3) var(--ma-5);
  margin: var(--ma-2);
  border-radius: 0;
  border: none;
  background: transparent;
  color: var(--yanagisusutake);
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
  letter-spacing: 0.08em;
  position: relative;
  overflow: hidden;
  text-transform: none;
}

button::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--akabeni), var(--kohaku));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

button::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--kohaku), var(--akabeni));
  transform: scaleX(0);
  transition: transform 0.3s ease 0.1s;
}

button:hover::before,
button:hover::after {
  transform: scaleX(1);
}

button:hover {
  background: rgba(45, 45, 45, 0.05);
  color: var(--yanagisusutake);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* === 正文页优化 === */
.chapter-page {
  padding: var(--ma-6) var(--ma-6);
  margin: var(--ma-4) 0;
  background: 
    linear-gradient(135deg, rgba(255,255,255,0.98) 0%, rgba(252,251,253,0.99) 100%),
    url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" opacity="0.02"><path d="M0,50 L100,50 M50,0 L50,100" stroke="%235d6270" stroke-width="0.3"/></svg>');
  border: 1px solid var(--shironezumi);
}

.chapter-title {
  font-size: 1.8em;
  color: var(--yanagisusutake);
  margin-bottom: var(--ma-5);
  text-align: center;
  font-weight: 600;
  letter-spacing: 0.1em;
  position: relative;
  padding-bottom: var(--ma-3);
  border-bottom: 1px solid var(--shironezumi);
}

.chapter-title::before {
  content: '「';
  position: absolute;
  left: -20px;
  color: var(--akabeni);
  opacity: 0.6;
}

.chapter-title::after {
  content: '」';
  position: absolute;
  right: -20px;
  color: var(--akabeni);
  opacity: 0.6;
}

#page-content p {
  font-size: 1.1em;
  line-height: 2.2;
  margin-bottom: 2em;
  text-align: justify;
  text-indent: 2em;
  color: var(--sumi-iro);
  letter-spacing: 0.05em;
  font-weight: 400;
  position: relative;
}

/* 放大正文首字 */
#page-content p:first-child::first-letter {
  font-size: 1.4em;
  color: var(--akabeni);
  font-weight: 600;
  margin-right: 2px;
}

/* === 翻页控件优化 === */
.page-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: var(--ma-5);
  gap: var(--ma-4);
  padding: var(--ma-3) 0;
  border-top: 1px solid var(--shironezumi);
  background: transparent;
}

.page-controls button {
  min-width: 120px;
  font-size: 0.9em;
}

#page-info {
  margin: 0 var(--ma-3);
  font-size: 0.95em;
  color: var(--aizome);
  font-family: 'Noto Sans JP', sans-serif;
  letter-spacing: 0.05em;
  font-weight: 500;
}

/* === 结尾页优化 === */
.end-page {
  padding: var(--ma-6) var(--ma-5);
  text-align: center;
  background: 
    linear-gradient(135deg, rgba(255,255,255,0.95) 0%, rgba(248,246,250,0.98) 100%);
  border: none;
  box-shadow: none;
}

.end-page h2 {
  font-size: 1.6em;
  color: var(--yanagisusutake);
  margin-bottom: var(--ma-4);
  font-weight: 600;
  letter-spacing: 0.08em;
  position: relative;
  display: inline-block;
}

.end-page h2::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--akabeni), transparent);
}

.end-page p {
  font-size: 1.1em;
  margin-bottom: var(--ma-5);
  color: var(--aizome);
  line-height: 1.8;
  font-style: italic;
}

/* 尾页按钮特殊样式 */
.end-page button {
  position: relative;
  padding: var(--ma-3) var(--ma-6);
  font-size: 1em;
}

.end-page button::before {
  height: 3px;
  background: linear-gradient(90deg, var(--akabeni), var(--kohaku), var(--akabeni));
}

.end-page button::after {
  height: 3px;
  background: linear-gradient(90deg, var(--akabeni), var(--kohaku), var(--akabeni));
}

/* === 动画效果 === */
@keyframes fadeIn {
  from { 
    opacity: 0; 
    transform: translateY(20px); 
  }
  to { 
    opacity: 1; 
    transform: translateY(0); 
  }
}

@keyframes slideIn {
  from { 
    opacity: 0; 
    transform: translateX(-30px); 
  }
  to { 
    opacity: 1; 
    transform: translateX(0); 
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

.slide-in {
  animation: slideIn 0.5s ease-out;
}

/* === 响应式设计 === */
@media (max-width: 768px) {
  .reader-container {
    padding: var(--ma-4) var(--ma-3);
  }
  
  .front-page,
  .chapter-page,
  .end-page {
    padding: var(--ma-4) var(--ma-3);
  }
  
  .front-page h1 {
    font-size: 1.8em;
  }
  
  .front-page p {
    font-size: 1em;
  }
  
  .card {
    min-width: 140px;
    padding: var(--ma-3);
  }
  
  .chapter-title {
    font-size: 1.4em;
  }
  
  #page-content p {
    font-size: 1em;
    line-height: 2;
    text-indent: 1.5em;
  }
  
  button {
    font-size: 0.9em;
    padding: var(--ma-2) var(--ma-4);
  }
  
  .page-controls {
    flex-direction: column;
    gap: var(--ma-3);
  }
}

/* === 打印样式 === */
@media print {
  .page-controls,
  .back-home,
  button {
    display: none;
  }
  
  .page {
    box-shadow: none;
    border: 1px solid #ccc;
  }
}