/* ============================================================
   时间给的答案 · 全站统一样式
   设计基调：纸张质感 · 墨色文字 · 金色点缀 · 衬线排版
   ============================================================ */

:root {
  --nav-w: 224px;

  --bg: #f6f2eb;
  --surface: #fffdf9;
  --surface-soft: #faf6ef;

  --ink: #2b2620;
  --ink-soft: #6f665b;
  --ink-faint: #a89e91;

  --accent: #b08a56;
  --accent-strong: #8f6a38;
  --accent-soft: #e9dcc8;
  --accent-pale: #f5ecdd;
  --line: #ece4d8;

  --shadow-sm: 0 1px 2px rgba(58, 44, 28, 0.04), 0 4px 14px rgba(58, 44, 28, 0.06);
  --shadow-md: 0 2px 6px rgba(58, 44, 28, 0.05), 0 18px 44px rgba(58, 44, 28, 0.10);

  --radius-lg: 24px;
  --radius-md: 16px;

  --font-serif: 'Noto Serif SC', 'Songti SC', 'STSong', 'SimSun', serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-serif);
  background-color: var(--bg);
  background-image:
    radial-gradient(1100px 420px at 82% -60px, rgba(176, 138, 86, 0.10), transparent 60%),
    radial-gradient(900px 480px at -8% 108%, rgba(176, 138, 86, 0.08), transparent 60%);
  background-attachment: fixed;
  color: var(--ink);
  line-height: 1.9;
  display: flex;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection {
  background: var(--accent-soft);
  color: var(--ink);
}

::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: #cfc3ae;
  border-radius: 8px;
  border: 2px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ===== 左侧导航 ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--nav-w);
  height: 100vh;
  background: linear-gradient(180deg, #322c25, #26221d 55%, #211d18);
  color: #e5ded3;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  padding: 48px 22px;
  z-index: 1000;
  box-shadow: 6px 0 28px rgba(43, 35, 25, 0.14);
  overflow-y: auto;
}

.navbar::before {
  content: "";
  position: absolute;
  top: 0;
  left: 30px;
  right: 30px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.8;
}

.navbar .site-name {
  font-size: 17px;
  font-weight: 700;
  color: #f0e9dd;
  letter-spacing: 4px;
  text-align: center;
  margin-bottom: 34px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
}

.navbar a {
  display: block;
  color: #bfb6a8;
  text-decoration: none;
  font-size: 16px;
  letter-spacing: 4px;
  padding: 13px 18px;
  border-radius: 12px;
  transition: color 0.25s ease, background-color 0.25s ease, transform 0.25s ease;
}

.navbar a:hover {
  color: #f5efe6;
  background-color: rgba(255, 255, 255, 0.06);
  transform: translateX(4px);
}

.navbar a.active {
  color: #2a241c;
  background: linear-gradient(135deg, #d6b786, var(--accent));
  font-weight: 700;
  box-shadow: 0 8px 22px rgba(176, 138, 86, 0.35);
}

/* ===== 主内容区 ===== */
.main-wrapper {
  margin-left: var(--nav-w);
  flex: 1;
  min-width: 0;
  padding: 30px clamp(16px, 4vw, 52px) 64px;
}

.main {
  margin-left: var(--nav-w);
  flex: 1;
  min-width: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== 顶部海报 ===== */
.poster {
  max-width: 1100px;
  margin: 0 auto 38px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow-md);
  background: #e8dfd1;
}

.poster img {
  width: 100%;
  height: auto;
  display: block;
}

/* ===== 文章页首图 ===== */
.hero {
  width: 100%;
  height: 46vh;
  min-height: 320px;
  background: url('/assets/poster.jpg') center center / cover no-repeat;
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(43, 35, 25, 0.18), transparent 55%, var(--bg));
}

/* ===== 卡片 ===== */
.card {
  position: relative;
  max-width: 900px;
  margin: 0 auto 40px;
  padding: clamp(30px, 5vw, 56px) clamp(22px, 4.5vw, 52px);
  background: var(--surface);
  border: 1px solid rgba(236, 228, 216, 0.9);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  animation: fadeIn 0.7s ease;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 88px;
  height: 4px;
  border-radius: 0 0 4px 4px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.main .card {
  margin: -56px auto 44px;
}

.main .footer {
  margin-top: auto;
}

/* ===== 标题与元信息 ===== */
.article-title {
  text-align: center;
  font-size: clamp(26px, 3.4vw, 34px);
  font-weight: 700;
  letter-spacing: 6px;
  margin-bottom: 14px;
  color: var(--ink);
}

.card h1:not(.article-title) {
  text-align: center;
  font-size: clamp(23px, 2.8vw, 30px);
  font-weight: 700;
  letter-spacing: 5px;
  margin-bottom: 28px;
  padding-bottom: 20px;
  color: var(--ink);
  position: relative;
}

.card h1:not(.article-title)::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 72px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.meta {
  text-align: center;
  font-size: 14px;
  letter-spacing: 2px;
  color: var(--ink-faint);
  margin-bottom: 34px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.meta span {
  margin: 0 6px;
}

/* ===== 正文排版 ===== */
.content p {
  font-size: clamp(15px, 1vw + 13px, 17px);
  line-height: 2;
  letter-spacing: 0.2px;
  text-align: justify;
  text-indent: 2em;
  margin-bottom: 1.05em;
  overflow-wrap: break-word;
}

.content .en p {
  text-indent: 0;
  text-align: left;
  font-style: italic;
  font-size: 15px;
  line-height: 1.95;
  color: var(--ink-soft);
  margin-bottom: 0.9em;
}

.content .en p strong {
  font-style: normal;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 1px;
}

/* 英文译文大标题 */
.content .en .en-title {
  position: relative;
  text-align: center;
  font-style: normal;
  font-size: clamp(20px, 2.6vw, 24px);
  letter-spacing: 2px;
  color: var(--ink);
  margin: 6px auto 24px;
  padding-bottom: 14px;
  text-indent: 0;
}

.content .en .en-title strong {
  font-weight: 700;
  letter-spacing: 2px;
}

.content .en .en-title::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 64px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.divider {
  border: 0;
  height: 1px;
  margin: 2.2em 0 1.8em;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

/* ===== 英文翻译区 ===== */
.content .en {
  position: relative;
  margin-top: 50px;
  padding: 40px 34px 28px;
  background: var(--surface-soft);
  border: 1px dashed #e2d5c0;
  border-radius: 18px;
}

.content .en .label {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 16px;
  background: var(--surface);
  border: 1px solid #e5d8c2;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--accent-strong);
  white-space: nowrap;
}

/* ===== 视频按钮 ===== */
.video-row {
  margin-top: 36px !important;
  text-align: center;
  text-indent: 0 !important;
}

.video-link {
  display: inline-block;
  padding: 14px 34px;
  background: linear-gradient(135deg, #2e2923, #1f1b16);
  color: #f2ecdf;
  text-decoration: none;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 2px;
  box-shadow: 0 10px 24px rgba(43, 35, 25, 0.22);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.25s ease, color 0.25s ease;
}

.video-link:hover {
  transform: translateY(-2px);
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff;
  box-shadow: 0 14px 30px rgba(176, 138, 86, 0.35);
}

/* ===== 提示框 ===== */
.wechat-note,
.future-note {
  margin: 18px 0 8px;
  padding: 16px 20px;
  background: var(--accent-pale);
  border-left: 4px solid var(--accent);
  border-radius: 0 14px 14px 0;
  font-size: 15px;
  line-height: 1.9;
  color: #4a4136;
}

.wechat-note strong {
  color: var(--accent-strong);
}

.content .note {
  margin-top: 34px;
  padding: 12px 4px 4px 18px;
  font-size: 13px;
  color: var(--ink-faint);
  text-indent: 0;
  border-left: 4px solid var(--accent-soft);
  background: transparent;
}

/* ===== 落款行 ===== */
.sign-off {
  margin-top: 26px !important;
  text-align: right !important;
  font-weight: 400;
  text-indent: 0 !important;
  color: var(--ink-soft);
}

.content > .sign-off {
  font-style: normal;
}

.content .en .sign-off {
  font-style: italic;
}

/* ===== 头像展示 ===== */
.avatar-gallery {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 34px;
  margin: 30px 0 36px;
}

.avatar-gallery img {
  width: clamp(110px, 14vw, 170px);
  height: clamp(110px, 14vw, 170px);
  object-fit: cover;
  border-radius: 50%;
  border: 5px solid #fff;
  box-shadow: 0 0 0 1px var(--line), var(--shadow-md);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.avatar-gallery img:hover {
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 0 0 2px var(--accent), 0 18px 36px rgba(58, 44, 28, 0.16);
}

/* ===== 底部版权 ===== */
.footer {
  margin-top: 28px;
  padding: 20px 0 6px;
  text-align: center;
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--ink-faint);
  border-top: 1px solid var(--line);
}

/* ===== 欢迎弹窗（动态渲染） ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(38, 30, 20, 0.48);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  padding: 20px;
  animation: fadeIn 0.4s ease;
}

.modal-box {
  position: relative;
  width: 90%;
  max-width: 440px;
  padding: 50px 36px 38px;
  background: linear-gradient(180deg, #fffdf8, #fbf6ee);
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: 28px;
  box-shadow: 0 34px 90px rgba(38, 30, 20, 0.38);
  text-align: center;
  overflow: hidden;
  animation: slideUp 0.5s cubic-bezier(0.2, 0.9, 0.3, 1.12);
}

.modal-box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 76px;
  height: 4px;
  border-radius: 0 0 4px 4px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

/* 顶部暖金光晕 */
.modal-glow {
  position: absolute;
  top: -80px;
  left: 50%;
  width: 340px;
  height: 280px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, rgba(176, 138, 86, 0.32), transparent 72%);
  filter: blur(6px);
  pointer-events: none;
  animation: glowPulse 5s ease-in-out infinite;
}

/* 上升金色粒子 */
.modal-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.modal-particles span {
  position: absolute;
  bottom: -12px;
  border-radius: 50%;
  background: linear-gradient(135deg, #d6b786, var(--accent));
  opacity: 0;
  animation: rise linear infinite;
}

/* 飞舞的白鸽 */
.modal-dove {
  display: inline-block;
  font-size: 52px;
  line-height: 1;
  margin-bottom: 8px;
  animation: doveFloat 3.6s ease-in-out infinite;
  filter: drop-shadow(0 8px 14px rgba(176, 138, 86, 0.35));
}

/* 动态问候语 + 实时时钟 */
.modal-greeting {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 5px;
  color: var(--accent-strong);
  margin-bottom: 5px;
  animation: fadeIn 0.6s ease 0.15s both;
}

.modal-clock {
  font-size: 13px;
  letter-spacing: 4px;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
  margin-bottom: 18px;
  animation: fadeIn 0.6s ease 0.3s both;
}

/* 主题标题（打字机） */
.modal-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 7px;
  color: var(--ink);
  min-height: 42px;
  margin-bottom: 6px;
}

.modal-title::after {
  content: "|";
  display: inline-block;
  margin-left: 3px;
  color: var(--accent);
  font-weight: 400;
  animation: blink 0.9s step-end infinite;
}

.modal-title.typed-done::after {
  animation: none;
  opacity: 0;
}

/* 分隔装饰 */
.modal-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 78%;
  margin: 16px auto;
}

.modal-divider::before,
.modal-divider::after {
  content: "";
  height: 1px;
  flex: 1;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
}

.modal-divider span {
  color: var(--accent);
  font-size: 12px;
}

/* 引言与落款 */
.modal-quote {
  font-size: 17px;
  letter-spacing: 1px;
  color: var(--ink);
  line-height: 1.9;
  margin-bottom: 6px;
  opacity: 0;
  animation: fadeIn 0.6s ease 1.0s both;
}

.modal-sign {
  font-size: 14px;
  letter-spacing: 2px;
  color: var(--ink-soft);
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeIn 0.6s ease 1.2s both;
}

.modal-author {
  color: var(--accent-strong);
  font-weight: 700;
}

/* 关键词标签 */
.modal-tags {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 30px;
  opacity: 0;
  animation: fadeIn 0.6s ease 1.4s both;
}

.modal-tag {
  padding: 5px 16px;
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--accent-strong);
  background: var(--accent-pale);
  border: 1px solid var(--accent-soft);
  border-radius: 999px;
}

/* 关闭按钮（磁吸光斑） */
.btn-close {
  position: relative;
  overflow: hidden;
  padding: 13px 44px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff;
  border: none;
  border-radius: 999px;
  font-family: inherit;
  font-size: 15px;
  letter-spacing: 3px;
  cursor: pointer;
  box-shadow: 0 12px 28px rgba(176, 138, 86, 0.38);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  opacity: 0;
  animation: fadeIn 0.6s ease 1.6s both;
}

.btn-close::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(circle at var(--x, 50%) var(--y, 50%), rgba(255, 255, 255, 0.5), transparent 46%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.btn-close:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(176, 138, 86, 0.5);
}

.btn-close:hover::after {
  opacity: 1;
}

.btn-close:active {
  transform: translateY(0) scale(0.98);
}

.btn-close .btn-label {
  position: relative;
  z-index: 1;
}

/* 弹窗关闭动效 */
.modal-overlay.modal-closing {
  animation: fadeOut 0.32s ease forwards;
}

.modal-overlay.modal-closing .modal-box {
  animation: slideOut 0.32s ease forwards;
}

/* ===== 动效 ===== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}

@keyframes fadeOut {
  to { opacity: 0; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(28px) scale(0.96); }
  to { opacity: 1; transform: none; }
}

@keyframes slideOut {
  to { opacity: 0; transform: translateY(20px) scale(0.96); }
}

/* 暖金光晕脉动 */
@keyframes glowPulse {
  0%, 100% { opacity: 0.55; transform: translateX(-50%) scale(1); }
  50% { opacity: 1; transform: translateX(-50%) scale(1.12); }
}

/* 金色粒子上升 */
@keyframes rise {
  0% { transform: translateY(0) translateX(0); opacity: 0; }
  12% { opacity: 0.9; }
  100% { transform: translateY(-470px) translateX(var(--drift)); opacity: 0; }
}

/* 白鸽悬浮 */
@keyframes doveFloat {
  0%, 100% { transform: translateY(0) rotate(-4deg); }
  50% { transform: translateY(-8px) rotate(4deg); }
}

/* 打字机光标闪烁 */
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* ===== 响应式：平板 / 窄屏 ===== */
@media (max-width: 1024px) {
  :root {
    --nav-w: 200px;
  }
  .navbar {
    padding: 40px 18px;
  }
  .navbar a {
    font-size: 15px;
    letter-spacing: 3px;
    padding: 12px 16px;
  }
}

/* ===== 响应式：手机端 ===== */
@media (max-width: 768px) {
  .navbar {
    top: 0;
    left: 0;
    width: 100%;
    height: auto;
    min-height: 54px;
    flex-direction: row;
    justify-content: flex-start;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    box-shadow: 0 4px 18px rgba(43, 35, 25, 0.16);
  }

  .navbar::-webkit-scrollbar {
    display: none;
  }

  .navbar::before {
    display: none;
  }

  .navbar .site-name {
    flex: 0 0 auto;
    margin: 0 10px 0 0;
    padding: 0 12px 0 0;
    border-bottom: none;
    border-right: 1px solid rgba(255, 255, 255, 0.12);
    font-size: 14px;
    letter-spacing: 2px;
    white-space: nowrap;
  }

  .navbar a {
    flex: 0 0 auto;
    padding: 8px 14px;
    font-size: 13px;
    letter-spacing: 1px;
    border-radius: 999px;
    white-space: nowrap;
  }

  .navbar a:hover {
    transform: none;
  }

  .main-wrapper {
    margin-left: 0;
    padding: 74px 14px 40px;
  }

  .main {
    margin-left: 0;
    padding-top: 54px;
  }

  .main .card {
    margin: -34px 14px 28px;
  }

  .poster {
    border-radius: 18px;
    margin-bottom: 26px;
  }

  .card {
    border-radius: 20px;
    padding: 30px 18px 26px;
  }

  .hero {
    height: 30vh;
    min-height: 220px;
  }

  .content .en {
    padding: 34px 18px 24px;
  }

  .content .en .label {
    font-size: 11px;
    letter-spacing: 2px;
  }

  .video-link {
    display: block;
    text-align: center;
  }

  .avatar-gallery {
    gap: 20px;
  }

  .avatar-gallery img {
    width: clamp(100px, 30vw, 136px);
    height: clamp(100px, 30vw, 136px);
  }

  .modal-box {
    padding: 40px 24px 30px;
    border-radius: 24px;
  }

  .modal-dove {
    font-size: 44px;
  }

  .modal-title {
    font-size: 24px;
    letter-spacing: 5px;
  }

  .modal-greeting,
  .modal-clock {
    letter-spacing: 3px;
  }
}

/* ===== 响应式：小屏手机 ===== */
@media (max-width: 480px) {
  .navbar a {
    padding: 7px 10px;
    font-size: 12px;
  }

  .navbar .site-name {
    font-size: 13px;
    letter-spacing: 1px;
  }

  .card {
    padding: 26px 16px 22px;
  }

  .content .en {
    padding: 30px 16px 20px;
  }
}

/* ===== 减少动态效果（无障碍） ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}