/*
Theme Name: PCXX Tech
Theme URI: https://zhixingyun.cloud
Description: 彭玟瑞 · 学习笔记 —— 深空紫主题。Typecho 1.2.x + SQLite，零外部依赖、零 CDN、零前端框架。自带知识库目录、作品集模板、Dracula 代码高亮。
Author: 彭玟瑞
Author URI: https://zhixingyun.cloud
Version: 1.0.5
Requires: 1.2.0
*/

/* ============================================================
   彭玟瑞 · 学习笔记 —— PCXX Tech 主题样式
   配色与组件规范见 02-设计方案/02-视觉设计系统.md
   ============================================================ */

:root {
  --bg:        #0A0A12;
  --surface:   #16141F;
  --surface-h: #1C1930;
  --title:     #F2F1F7;
  --text:      #C9C9D4;
  --muted:     #8A8A99;
  --border:    rgba(139, 124, 246, .16);
  --border-h:  rgba(139, 124, 246, .35);
  --chip-bg:   #241F3D;
  --chip-text: #B9A8FF;
  --grad:      linear-gradient(90deg, #7C5CFF, #A78BFA);
  --radius:    16px;
  --t:         150ms;

  /* Dracula 代码高亮 */
  --code-bg:   #14121C;
  --kw:  #FF79C6;
  --fn:  #50FA7B;
  --str: #F1FA8C;
  --num: #BD93F9;
  --cmt: #6272A4;
  --bi:  #8BE9FD;
}

[data-theme="light"] {
  --bg:        #F7F6FB;
  --surface:   #EFEBFF;
  --surface-h: #E5DFFF;
  --title:     #1A1729;
  --text:      #4A4560;
  --muted:     #7C7695;
  --border:    rgba(124, 92, 255, .18);
  --border-h:  rgba(124, 92, 255, .38);
  --chip-bg:   #E7E0FF;
  --chip-text: #6B4BE0;
  /* 代码块在亮色主题下仍保持深色，这是博客通行做法 */
  --code-bg:   #14121C;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  transition: background 200ms ease, color 200ms ease;
}

a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { color: var(--title); line-height: 1.35; margin: 0; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.mono { font-family: "JetBrains Mono", Consolas, "Courier New", monospace; }

/* ---------- 顶栏 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }

.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--title); }
.brand-mark {
  width: 34px; height: 34px; display: grid; place-items: center;
  border-radius: 10px; background: var(--grad); color: #fff; font-size: 15px;
}

.nav { display: flex; gap: 4px; align-items: center; }
.nav-link {
  padding: 7px 14px; border-radius: 10px; font-size: 14.5px; color: var(--muted);
  transition: color var(--t) ease, background var(--t) ease;
}
.nav-link:hover { color: var(--title); background: var(--surface); }
.nav-link.is-current, .nav-link.is-current:hover { background: var(--grad); color: #fff; }

.icon-btn {
  width: 36px; height: 36px; display: grid; place-items: center;
  border: 1px solid var(--border); border-radius: 10px;
  background: var(--surface); color: var(--text); cursor: pointer; font-size: 15px;
  transition: border-color var(--t) ease, color var(--t) ease;
}
.icon-btn:hover { border-color: var(--border-h); color: var(--title); }
.menu-btn { display: none; }

/* ---------- Hero ---------- */
.hero { padding: 56px 0 40px; }
.hero-card {
  padding: 34px 32px; border: 1px solid var(--border); border-radius: 20px;
  background: var(--surface);
}
.hero-top { display: flex; align-items: center; gap: 18px; margin-bottom: 20px; }

/* 头像位：预留 120px 圆形，稍后替换为彭玟瑞的真实照片 */
.avatar {
  width: 120px; height: 120px; flex: 0 0 120px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--grad); color: #fff; font-size: 40px; font-weight: 700;
  border: 1px solid var(--border-h);
}
.hero-title { font-size: clamp(26px, 3.4vw, 36px); font-weight: 800; letter-spacing: -.01em; }
.hero-sub { color: var(--muted); font-size: 15px; margin-top: 6px; }

.search {
  display: flex; gap: 10px; align-items: center;
  padding: 8px 8px 8px 18px; border: 1px solid var(--border);
  border-radius: 14px; background: var(--bg);
  transition: border-color var(--t) ease;
}
.search:focus-within { border-color: var(--border-h); }
.search input {
  flex: 1; border: 0; background: transparent; color: var(--text);
  font-size: 15px; outline: none; font-family: inherit;
}
.search input::placeholder { color: var(--muted); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 40px; padding: 0 22px; border-radius: 999px;
  border: 1px solid transparent; font-size: 14.5px; font-weight: 600; cursor: pointer;
  transition: transform var(--t) ease, border-color var(--t) ease, background var(--t) ease;
}
.btn-sm { height: 34px; padding: 0 16px; font-size: 13.5px; }
.btn-primary { background: var(--grad); color: #fff; }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--muted); }
.btn:hover { transform: translateY(-2px); }
.btn-ghost:hover { border-color: var(--border-h); color: var(--title); }

/* ---------- 布局：左侧栏 + 主内容 ---------- */
.layout { display: grid; grid-template-columns: 240px 1fr; gap: 40px; padding: 16px 0 72px; align-items: start; }

.leftbar { display: grid; gap: 18px; position: sticky; top: 88px; }

.side-nav { padding: 12px; display: grid; gap: 2px; }
.side-nav a {
  display: block; padding: 10px 14px; border-radius: 10px;
  font-size: 15px; color: var(--muted);
  transition: color var(--t) ease, background var(--t) ease;
}
.side-nav a:hover { color: var(--title); background: var(--surface-h); }
/* 当前栏目 = 紫渐变圆角胶囊（v2 规格） */
.side-nav a.is-current, .side-nav a.is-current:hover { background: var(--grad); color: #fff; }

.widget-title-2 { font-size: 12px; letter-spacing: .12em; color: var(--muted); padding: 0 14px; margin-bottom: 8px; }

.drawer-mask { display: none; }
.menu-close { display: none; }

/* ---------- 卡片 ---------- */
.card {
  padding: 22px 24px; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface);
  transition: transform var(--t) ease, border-color var(--t) ease;
}
.card:hover { transform: translateY(-2px); border-color: var(--border-h); }

.post-list { display: grid; gap: 18px; }
.chip {
  display: inline-block; padding: 3px 10px; border-radius: 6px;
  background: var(--chip-bg); color: var(--chip-text);
  border: 1px solid var(--border); font-size: 12px; line-height: 1.8;
}
.post-title { font-size: 21px; margin: 12px 0 8px; }
.post-title a:hover { color: var(--chip-text); }
.post-excerpt { color: var(--muted); font-size: 15px; }
.post-meta { color: var(--muted); font-size: 13px; margin: 12px 0 18px; }
.post-meta span + span::before { content: "·"; margin: 0 8px; opacity: .6; }
.card-actions { display: flex; gap: 10px; }

.pager { display: flex; gap: 10px; align-items: center; justify-content: center; margin-top: 34px; flex-wrap: wrap; }
.pager-num { color: var(--muted); font-size: 14px; }

/* ---------- 侧栏模块（左侧栏内） ---------- */
.widget { padding: 20px 22px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.widget-title { font-size: 14px; font-weight: 700; color: var(--title); margin-bottom: 14px; letter-spacing: .04em; }
.widget ul { display: grid; gap: 9px; }
.widget li a { display: flex; justify-content: space-between; gap: 10px; font-size: 14px; color: var(--muted); transition: color var(--t) ease; }
.widget li a:hover { color: var(--title); }
.widget li .count { color: var(--muted); opacity: .7; font-size: 13px; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.entry-optional { display: none; } /* 登录/注册入口：默认隐藏 */

/* ---------- 文章页 ---------- */
.article-head { padding: 40px 0 8px; }
.article-title { font-size: clamp(28px, 4vw, 40px); font-weight: 800; margin: 14px 0 12px; }
.article-meta { color: var(--muted); font-size: 13.5px; }
.article-meta span + span::before { content: "·"; margin: 0 8px; opacity: .6; }

.post-layout { display: grid; grid-template-columns: 1fr 220px; gap: 40px; align-items: start; padding-bottom: 24px; }
.prose { font-size: 16.5px; }
.prose h2 { font-size: 23px; margin: 38px 0 14px; scroll-margin-top: 88px; }
.prose h3 { font-size: 19px; margin: 28px 0 12px; scroll-margin-top: 88px; }
.prose p { margin-bottom: 18px; }
.prose ul { list-style: disc; padding-left: 22px; margin-bottom: 18px; }
.prose li { margin-bottom: 6px; }
.prose blockquote {
  margin: 0 0 18px; padding: 12px 18px; border-left: 3px solid var(--chip-text);
  background: var(--surface); border-radius: 0 10px 10px 0; color: var(--muted);
}

.toc { display: block; }
.toc-title { font-size: 13px; font-weight: 700; color: var(--title); margin-bottom: 10px; letter-spacing: .04em; }
.toc a { display: block; padding: 6px 0; font-size: 13.5px; color: var(--muted); border-left: 2px solid transparent; padding-left: 10px; margin-left: -12px; transition: color var(--t) ease, border-color var(--t) ease; }
.toc a:hover { color: var(--chip-text); }
.toc a.is-active { color: var(--chip-text); border-left-color: var(--chip-text); }
.toc a.sub { padding-left: 22px; }

.code-block {
  position: relative; margin: 0 0 20px; border: 1px solid var(--border);
  border-radius: 12px; background: var(--code-bg); overflow: hidden;
}
.code-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 12px 8px 16px; border-bottom: 1px solid rgba(255, 255, 255, .07);
  font-size: 12px; color: #8A8A99;
}
.copy-btn {
  border: 1px solid rgba(255, 255, 255, .14); background: rgba(255, 255, 255, .06);
  color: #C9C9D4; border-radius: 7px; padding: 2px 10px; font-size: 12px; cursor: pointer;
  transition: background var(--t) ease, color var(--t) ease;
}
.copy-btn:hover { background: rgba(255, 255, 255, .12); color: #fff; }
.code-block pre { margin: 0; padding: 16px; overflow-x: auto; }
.code-block code { font-family: "JetBrains Mono", Consolas, "Courier New", monospace; font-size: 13.5px; line-height: 1.7; color: #C9C9D4; }
.kw { color: var(--kw); } .fn { color: var(--fn); } .str { color: var(--str); }
.num { color: var(--num); } .cmt { color: var(--cmt); } .bi { color: var(--bi); }

.post-tags { display: flex; gap: 8px; flex-wrap: wrap; margin: 26px 0; }
.post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 8px 0 24px; }
.post-nav a { padding: 16px 18px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); font-size: 14.5px; transition: transform var(--t) ease, border-color var(--t) ease; }
.post-nav a:hover { transform: translateY(-2px); border-color: var(--border-h); }
.post-nav .nav-label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.post-nav .next { text-align: right; }

.cta-box {
  padding: 24px; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); margin-bottom: 18px;
}
.cta-box h3 { font-size: 17px; margin-bottom: 8px; }
.cta-box p { color: var(--muted); font-size: 14.5px; margin-bottom: 16px; }

.comments-off {
  display: none; /* 评论区：已实现但默认关闭，主题配置项开启后显示 */
  padding: 24px; border: 1px dashed var(--border); border-radius: var(--radius);
  color: var(--muted); font-size: 14px;
}

/* ---------- 作品集 ---------- */
.works-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 20px; padding-bottom: 72px; }
.work-card { padding: 0; overflow: hidden; }
.work-cover {
  height: 148px; display: grid; place-items: center;
  font-size: 17px; font-weight: 800; letter-spacing: .14em; color: rgba(255, 255, 255, .95);
}
.work-body { padding: 18px 20px 22px; }
.work-title { font-size: 17.5px; margin-bottom: 8px; }
.work-desc { color: var(--muted); font-size: 14px; margin-bottom: 14px; }
.work-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }

.cover-1 { background: linear-gradient(135deg, #7C5CFF, #A78BFA); }
.cover-2 { background: linear-gradient(135deg, #4F7BFF, #22D3EE); }
.cover-3 { background: linear-gradient(135deg, #FF6B9D, #FF9A6B); }
.cover-4 { background: linear-gradient(135deg, #2BB673, #7BD66A); }
.cover-5 { background: linear-gradient(135deg, #FF8A3D, #FFC371); }
.cover-6 { background: linear-gradient(135deg, #8E7BFF, #5B4BD6); }

/* ---------- 页脚 ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 30px 0; }
.footer-inner { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; font-size: 13.5px; color: var(--muted); }
.footer-links { display: flex; gap: 16px; }

.to-top {
  position: fixed; right: 24px; bottom: 24px; width: 42px; height: 42px;
  display: grid; place-items: center; border: 1px solid var(--border-h);
  border-radius: 50%; background: var(--surface); color: var(--text);
  cursor: pointer; opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: all var(--t) ease;
}
.to-top.is-show { opacity: 1; visibility: visible; transform: none; }

/* ---------- 入场渐显（克制版） ----------
   关键：只有确认 JS 可用（html.js）才隐藏待入场元素。
   否则 JS 被拦截/禁用时内容会永远不可见。 */
html.js .fade { opacity: 0; transform: translateY(8px); transition: opacity 200ms ease, transform 200ms ease; }
html.js .fade.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}

/* ---------- 本专题目录（知识库 reading path） ---------- */
.series-list { list-style: none; display: grid; gap: 2px; counter-reset: none; }
.series-item a {
  display: flex; gap: 10px; align-items: baseline; padding: 8px 10px;
  border-radius: 10px; font-size: 14px; color: var(--muted);
  transition: background var(--t) ease, color var(--t) ease;
}
.series-item a:hover { background: var(--surface-h); color: var(--title); }
.series-item.is-current a { background: var(--chip-bg); color: var(--chip-text); }
.series-num { font-size: 12px; opacity: .65; flex: 0 0 auto; }
.series-title { line-height: 1.45; }
.series-progress { margin-top: 12px; font-size: 12.5px; color: var(--muted); opacity: .8; }

/* ---------- 评论区 ---------- */
.comment-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 18px; }
.comment-body { padding: 0; }
.comment-inner { display: flex; gap: 12px; align-items: flex-start; }
.comment-face {
  flex: 0 0 36px; width: 36px; height: 36px; border-radius: 50%;
  display: grid; place-items: center; color: #fff; font-weight: 700; font-size: 15px;
}
.comment-main { min-width: 0; flex: 1 1 auto; }
.comment-author { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 6px; }
.comment-author .fn { font-style: normal; font-weight: 600; font-size: 14.5px; color: var(--title); }
.comment-meta { font-size: 12.5px; color: var(--muted); }
.comment-content { font-size: 14.5px; color: var(--text); line-height: 1.72; }
.comment-content p { margin: 0 0 8px; }
.comment-content p:last-child { margin-bottom: 0; }
.comment-reply { margin-top: 6px; font-size: 13px; }
.comment-del { margin-top: 6px; font-size: 12px; color: var(--muted); text-decoration: none; }
.comment-del:hover { color: #FF79C6; }
.comment-children { margin-top: 14px; padding-left: 16px; border-left: 1px solid var(--border); display: grid; gap: 14px; }
.comment-children .comment-list { gap: 14px; }

.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
  padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px;
  background: var(--bg); color: var(--text); font-size: 14.5px;
  font-family: inherit; transition: border-color var(--t) ease;
}
.comment-form input:focus,
.comment-form textarea:focus { outline: none; border-color: var(--border-h); }
.comment-form textarea { resize: vertical; }
.comment-form p { margin-bottom: 12px; }
.cancel-comment-reply { font-size: 13px; color: var(--muted); }
.cancel-comment-reply:empty { display: none; }

/* ---------- 窄屏防溢出加固 ---------- */
/* 长 URL / 长英文单词不撑破版面；图片与表格在窄屏内滚动 */
.prose, .post-title, .work-desc, .series-title, .footer-inner, .comment-content {
  overflow-wrap: anywhere;
  word-break: break-word;
}
.series-title { min-width: 0; }
img, embed, iframe, video { max-width: 100%; height: auto; }
table { display: block; max-width: 100%; overflow-x: auto; }

/* ---------- 工具类 ---------- */
.muted { color: var(--muted); }
.post-nav .prev { text-align: left; }

/* ---------- 响应式：左侧栏在窄屏变抽屉 ---------- */
@media (max-width: 1024px) {
  .layout { grid-template-columns: 1fr; }

  .leftbar {
    position: fixed; top: 0; left: 0; bottom: 0; width: 282px; z-index: 60;
    background: var(--bg); border-right: 1px solid var(--border);
    padding: 18px 16px; overflow-y: auto; gap: 14px;
    transform: translateX(-100%);
    transition: transform 200ms ease;
  }
  .leftbar.is-open { transform: none; }

  .drawer-mask {
    display: block; position: fixed; inset: 0; z-index: 55;
    background: rgba(0, 0, 0, .5);
    opacity: 0; visibility: hidden; transition: opacity 200ms ease, visibility 200ms ease;
  }
  .drawer-mask.is-show { opacity: 1; visibility: visible; }

  .menu-btn { display: grid; place-items: center; gap: 4px; }
  .menu-close {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 6px 12px; color: var(--muted); font-size: 13px;
  }

  .post-layout { grid-template-columns: 1fr; }
  .works-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .hero { padding: 32px 0 24px; }
  .hero-card { padding: 24px 20px; }
  .hero-top { flex-direction: column; align-items: flex-start; gap: 14px; }
  .avatar { width: 84px; height: 84px; flex-basis: 84px; font-size: 30px; }
  .works-grid, .post-nav { grid-template-columns: 1fr; }
  .container { padding: 0 18px; }
  .leftbar { width: 84vw; max-width: 320px; }
}

/* ---------- 关于博主卡（侧栏）---------- */
.about-card { text-align: center; }
.about-avatar {
  width: 88px; height: 88px; margin: 0 auto 12px; border-radius: 50%;
  display: grid; place-items: center; overflow: hidden;
  background: var(--grad); color: #fff; font-size: 34px; font-weight: 700;
  border: 1px solid var(--border-h);
}
.about-avatar img { width: 100%; height: 100%; object-fit: cover; display: block; }
.about-name { font-size: 17px; font-weight: 700; color: var(--title); }
.about-text {
  margin: 10px 0 0; font-size: 13.5px; line-height: 1.7; color: var(--muted);
  text-align: left;
}
.about-mail {
  display: inline-block; margin-top: 14px; font-size: 13.5px; font-weight: 600;
  color: var(--chip-text);
}
.about-mail:hover { color: var(--title); }

/* ---------- 设置外观页：头像上传控件 ---------- */
.pr-avatar-box { padding: 14px 0 4px; }
.pr-avatar-label { font-size: 14px; font-weight: 700; color: var(--title); margin-bottom: 10px; }
.pr-avatar-prev {
  width: 72px; height: 72px; border-radius: 50%; object-fit: cover; display: block;
  margin-bottom: 10px; border: 1px solid var(--border);
}
.pr-avatar-prev.pr-avatar-empty {
  display: grid; place-items: center; background: var(--grad); color: #fff;
  font-size: 26px; font-weight: 700;
}
.pr-file { display: block; margin-bottom: 8px; font-size: 13px; color: var(--text); }
.pr-hint { font-size: 12px; color: var(--muted); line-height: 1.6; margin: 0 0 8px; }
.pr-clear { font-size: 13px; color: var(--muted); display: inline-flex; align-items: center; gap: 6px; cursor: pointer; }