/* ============================================================
 * 汉设计系统 · 基础样式重置 (Base Reset)
 * 保留中国风韵味，不做过于激进的重置
 * 依赖：tokens.css
 * ============================================================ */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

body {
  font-family: var(--dq-font-serif);
  font-size: var(--dq-fs-base);
  font-weight: var(--dq-fw-regular);
  line-height: var(--dq-lh-normal);
  color: var(--dq-color-text-primary);
  background-color: var(--dq-color-bg);
  background-image: var(--dq-bg-pattern,
    radial-gradient(
      circle at 15% 5%,
      rgba(42, 40, 36, 0.03) 0%,
      transparent 40%
    ),
    radial-gradient(
      circle at 85% 95%,
      rgba(42, 40, 36, 0.04) 0%,
      transparent 40%
    ),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300' viewBox='0 0 300 300'%3E%3Cfilter id='rice'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.95 0 0 0 0 0.92 0 0 0 0 0.85 0 0 0 0.04 0'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23rice)'/%3E%3C/svg%3E")
  );
  background-attachment: fixed;
  min-height: 100vh;
  letter-spacing: var(--dq-ls-wide);
}

/* ---------- 排版元素 ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--dq-font-kai);
  font-weight: var(--dq-title-weight, var(--dq-fw-bold));
  color: var(--dq-color-text-primary);
  line-height: var(--dq-lh-snug);
  letter-spacing: var(--dq-title-spacing, var(--dq-ls-wider));
  margin-bottom: var(--dq-space-4);
}

h1 { font-size: var(--dq-fs-4xl); }
h2 { font-size: var(--dq-fs-3xl); }
h3 { font-size: var(--dq-fs-2xl); }
h4 { font-size: var(--dq-fs-xl); }
h5 { font-size: var(--dq-fs-lg); }
h6 { font-size: var(--dq-fs-md); }

p {
  margin-bottom: var(--dq-space-4);
  line-height: var(--dq-lh-relaxed);
  text-indent: 2em;
}

/* 诗词段落（不缩进，加行距） */
.dq-poem p,
.dq-classical p {
  text-indent: 0;
  line-height: var(--dq-lh-loose);
  letter-spacing: var(--dq-ls-wide);
  text-align: justify;
}

blockquote {
  position: relative;
  margin: var(--dq-space-6) 0;
  padding: var(--dq-space-5) var(--dq-space-6);
  background: var(--dq-color-bg-surface);
  border: var(--dq-border);
  border-left: var(--dq-border-width-3) solid var(--dq-color-vermilion-500);
  border-radius: var(--dq-radius-md);
  font-family: var(--dq-font-kai);
  font-size: var(--dq-fs-lg);
  color: var(--dq-color-text-secondary);
  line-height: var(--dq-lh-relaxed);
}

blockquote::before {
  content: "「";
  position: absolute;
  top: -8px;
  left: var(--dq-space-4);
  font-size: var(--dq-fs-3xl);
  color: var(--dq-color-vermilion-400);
  line-height: 1;
}

blockquote::after {
  content: "」";
  position: absolute;
  bottom: -12px;
  right: var(--dq-space-4);
  font-size: var(--dq-fs-3xl);
  color: var(--dq-color-vermilion-400);
  line-height: 1;
}

/* ---------- 链接 ---------- */
a {
  color: var(--dq-color-indigo-500);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: all var(--dq-duration-normal) var(--dq-ease-out);
}

a:hover {
  color: var(--dq-color-vermilion-500);
  border-bottom-color: var(--dq-color-vermilion-500);
}

/* ---------- 列表 ---------- */
ul, ol {
  list-style: none;
  padding: 0;
}

ul li, ol li {
  position: relative;
  padding-left: var(--dq-space-6);
  margin-bottom: var(--dq-space-3);
  line-height: var(--dq-lh-relaxed);
}

/* 墨点项目符号 */
ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 8px;
  background: var(--dq-color-ink-400);
  border-radius: 50%;
  opacity: 0.6;
}

ol {
  counter-reset: dq-counter;
}

ol li {
  counter-increment: dq-counter;
}

ol li::before {
  content: counter(dq-counter);
  width: 24px;
  height: 24px;
  background: var(--dq-color-vermilion-500);
  color: var(--dq-color-paper-100);
  font-size: var(--dq-fs-xs);
  font-weight: var(--dq-fw-bold);
  border-radius: var(--dq-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  left: 0;
  top: 0.3em;
}

/* ---------- 代码 ---------- */
code {
  font-family: var(--dq-font-mono);
  font-size: 0.9em;
  padding: 2px 6px;
  background: var(--dq-color-ink-100);
  color: var(--dq-color-vermilion-700);
  border-radius: var(--dq-radius-sm);
  border: 1px solid var(--dq-color-ink-200);
}

pre {
  font-family: var(--dq-font-mono);
  padding: var(--dq-space-5);
  background: var(--dq-color-ink-700);
  color: var(--dq-color-paper-100);
  border-radius: var(--dq-radius-lg);
  overflow-x: auto;
  font-size: var(--dq-fs-sm);
  line-height: 1.7;
}

pre code {
  background: none;
  color: inherit;
  padding: 0;
  border: none;
}

/* ---------- 图片/媒体 ---------- */
img, svg, video, canvas {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ---------- 表单元素 ---------- */
button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  outline: none;
}

button {
  cursor: pointer;
  background: none;
  border: none;
}

/* ---------- 选中样式（中国风） ---------- */
::selection {
  background: rgba(192, 57, 43, 0.25);
  color: var(--dq-color-text-primary);
}

/* ---------- 滚动条样式（中国风） ---------- */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--dq-color-ink-100);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: var(--dq-color-ink-300);
  border-radius: 4px;
  border: 2px solid var(--dq-color-ink-100);
  transition: background var(--dq-duration-normal);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--dq-color-ink-400);
}

/* Firefox 滚动条 */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--dq-color-ink-300) var(--dq-color-ink-100);
}

/* ---------- 工具类 ---------- */
.dq-container {
  width: 100%;
  max-width: var(--dq-content-max-width, var(--dq-container-lg));
  margin: 0 auto;
  padding: 0 var(--dq-space-6);
}

.dq-container-sm { max-width: var(--dq-container-sm); }
.dq-container-md { max-width: var(--dq-container-md); }
.dq-container-xl { max-width: var(--dq-container-xl); }

.dq-section {
  padding: var(--dq-section-gap, var(--dq-space-16)) 0;
  position: relative;
}

/* ---------- 书法标题 ---------- */
.dq-calligraphy {
  font-family: var(--dq-font-kai);
  font-weight: var(--dq-fw-bold);
  letter-spacing: var(--dq-ls-wider);
  line-height: var(--dq-lh-tight);
}

/* ---------- 竖排文字 ---------- */
.dq-vertical {
  writing-mode: vertical-rl;
  text-orientation: upright;
  letter-spacing: var(--dq-space-3);
}

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
  html { font-size: 15px; }
  .dq-container { padding: 0 var(--dq-space-4); }
  .dq-section { padding: var(--dq-space-8) 0; }
  h1 { font-size: var(--dq-fs-3xl); }
  h2 { font-size: var(--dq-fs-2xl); }
}

@media (max-width: 480px) {
  html { font-size: 14px; }
  .dq-container { padding: 0 var(--dq-space-3); }
}

/* ---------- 减少动画偏好 ---------- */
@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;
  }
}