/*
Theme Name: Hackr
Theme URI: https://example.com/hackr
Author: Hackr Theme
Author URI: https://example.com
Description: 面向骇客 / 技术流 / 技术分享 / 资讯的现代博客主题。暗色优先、终端美学、自适应移动端，内置亮/暗切换、阅读进度、主题定制器与精致卡片网格。A modern, dark-first hacker & tech blog theme with a terminal aesthetic, fully responsive.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.5
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: hackr
Tags: blog, technology, dark-mode, custom-colors, custom-menu, custom-logo, featured-images, footer-widgets, full-width-template, sticky-post, threaded-comments, translation-ready, two-columns, right-sidebar
*/

/* ==========================================================================
   Hackr — Design Tokens
   ========================================================================== */
:root {
  /* Dark theme (default) */
  --bg:            #0a0e14;
  --bg-alt:        #0c1119;
  --surface:       #11161f;
  --surface-2:     #161d28;
  --surface-3:     #1b2330;
  --border:        #222b39;
  --border-strong: #2e3a4d;
  --text:          #e6edf6;
  --text-soft:     #b3c0d1;
  --text-muted:    #7d8aa0;
  --text-faint:    #56627a;

  --accent:        #2de2a6;   /* terminal mint */
  --accent-2:      #38bdf8;   /* cyan */
  --accent-3:      #a78bfa;   /* violet */
  --accent-ink:    #04130d;   /* text on accent */
  --accent-soft:   rgba(45, 226, 166, 0.12);
  --accent-glow:   rgba(45, 226, 166, 0.35);

  --grad: linear-gradient(115deg, var(--accent) 0%, var(--accent-2) 55%, var(--accent-3) 110%);
  --grad-soft: linear-gradient(115deg, rgba(45,226,166,.14), rgba(56,189,248,.10) 60%, rgba(167,139,250,.12));

  --danger:  #ff6b6b;
  --warning: #ffcc66;

  /* Type */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  /* Rhythm */
  --maxw: 1200px;
  --maxw-wide: 1340px;
  --maxw-text: 760px;
  --gutter: clamp(16px, 4vw, 40px);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;

  --shadow-sm: 0 2px 8px rgba(0,0,0,.25);
  --shadow:    0 18px 50px -22px rgba(0,0,0,.65);
  --shadow-glow: 0 0 0 1px var(--accent-soft), 0 18px 40px -18px var(--accent-glow);

  --header-h: 68px;
  --ease: cubic-bezier(.22,.61,.36,1);
  --t: .28s var(--ease);
}

/* Light theme */
[data-theme="light"] {
  --bg:            #f6f8fc;
  --bg-alt:        #eef2f8;
  --surface:       #ffffff;
  --surface-2:     #f4f7fb;
  --surface-3:     #eaeff7;
  --border:        #e2e8f1;
  --border-strong: #cfd9e6;
  --text:          #0d1320;
  --text-soft:     #33405a;
  --text-muted:    #5d6b82;
  --text-faint:    #8593a8;

  --accent:        #0bb183;
  --accent-2:      #0ea5e9;
  --accent-3:      #7c3aed;
  --accent-ink:    #ffffff;
  --accent-soft:   rgba(11, 177, 131, 0.12);
  --accent-glow:   rgba(11, 177, 131, 0.28);

  --shadow-sm: 0 2px 8px rgba(16,24,40,.06);
  --shadow:    0 18px 50px -24px rgba(16,24,40,.30);
  --shadow-glow: 0 0 0 1px var(--accent-soft), 0 18px 40px -18px var(--accent-glow);
}

/* ==========================================================================
   Reset / Base
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  position: relative;
}

/* Subtle dot-grid backdrop */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 50% 50%, var(--border) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: .35;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 80%);
  pointer-events: none;
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -3;
  background:
    radial-gradient(60% 50% at 15% -10%, rgba(45,226,166,.10), transparent 60%),
    radial-gradient(50% 45% at 95% 0%, rgba(56,189,248,.10), transparent 60%);
  pointer-events: none;
}

img, svg, video, canvas { display: block; max-width: 100%; height: auto; }
img { border-radius: inherit; }

a { color: var(--accent-2); text-decoration: none; transition: color var(--t); }
a:hover { color: var(--accent); }

h1, h2, h3, h4, h5, h6 { line-height: 1.18; font-weight: 750; letter-spacing: -.02em; color: var(--text); }
h1 { font-size: clamp(2rem, 5vw, 3.1rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.3rem); }
h3 { font-size: clamp(1.25rem, 2.4vw, 1.55rem); }
p { color: var(--text-soft); }

ul, ol { padding-left: 1.2em; }
code, kbd, pre, samp { font-family: var(--font-mono); font-size: .92em; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--accent-soft); color: var(--text); }

hr { border: 0; height: 1px; background: var(--border); margin: 2.5rem 0; }

/* ==========================================================================
   Layout helpers
   ========================================================================== */
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.container--wide { max-width: var(--maxw-wide); }
.container--text { max-width: var(--maxw-text); }
.section { padding-block: clamp(48px, 8vw, 96px); }
.section--tight { padding-block: clamp(36px, 5vw, 60px); }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--accent); color: var(--accent-ink); padding: 10px 16px; border-radius: 0 0 10px 0;
  font-family: var(--font-mono); font-weight: 600;
}
.skip-link:focus { left: 0; }

.screen-reader-text {
  border: 0; clip: rect(1px,1px,1px,1px); clip-path: inset(50%);
  height: 1px; width: 1px; margin: -1px; overflow: hidden; padding: 0; position: absolute !important; word-wrap: normal !important;
}

/* Mono eyebrow label */
.eyebrow {
  display: inline-flex; align-items: center; gap: .55em;
  font-family: var(--font-mono); font-size: .8rem; font-weight: 600;
  letter-spacing: .04em; text-transform: none;
  color: var(--accent);
}
.eyebrow::before { content: "//"; color: var(--text-faint); }

.section-head { margin-bottom: clamp(28px, 4vw, 44px); }
.section-head .title { margin-top: .5rem; }
.section-head .sub { color: var(--text-muted); max-width: 60ch; margin-top: .6rem; }
.section-head--row { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; }

.gradient-text {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  --_bg: var(--surface-2);
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  font-family: var(--font-mono); font-weight: 600; font-size: .92rem; letter-spacing: .01em;
  padding: .72em 1.3em; border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong); background: var(--_bg); color: var(--text);
  cursor: pointer; transition: transform var(--t), box-shadow var(--t), background var(--t), border-color var(--t), color var(--t);
  text-decoration: none; white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); border-color: var(--accent); color: var(--text); }
.btn:active { transform: translateY(0); }
.btn svg { width: 1.05em; height: 1.05em; }

.btn--primary {
  background: var(--grad); color: var(--accent-ink); border-color: transparent;
  box-shadow: 0 10px 30px -12px var(--accent-glow);
}
.btn--primary:hover { color: var(--accent-ink); box-shadow: 0 16px 40px -12px var(--accent-glow); }

.btn--ghost { background: transparent; }
.btn--ghost:hover { background: var(--accent-soft); }

.btn--block { width: 100%; }
.btn--sm { padding: .5em 1em; font-size: .82rem; }

/* ==========================================================================
   Header / Navigation
   ========================================================================== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  height: var(--header-h);
  display: flex; align-items: center;
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t), background var(--t);
}
.site-header.is-scrolled { border-bottom-color: var(--border); background: color-mix(in srgb, var(--bg) 88%, transparent); }

.header-inner { display: flex; align-items: center; gap: 18px; width: 100%; max-width: var(--maxw-wide); margin-inline: auto; padding-inline: var(--gutter); }

.brand { display: inline-flex; align-items: center; gap: .6rem; font-family: var(--font-mono); font-weight: 800; font-size: 1.12rem; letter-spacing: -.01em; color: var(--text); }
.brand:hover { color: var(--text); }
.brand .prompt { color: var(--accent); }
.brand .blink { color: var(--accent); animation: blink 1.15s steps(1) infinite; }
.brand img { max-height: 34px; width: auto; }
@keyframes blink { 50% { opacity: 0; } }

.primary-nav { margin-left: auto; }
.primary-nav ul { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.primary-nav a {
  display: inline-block; padding: 8px 14px; border-radius: 8px;
  color: var(--text-soft); font-size: .94rem; font-weight: 550; position: relative;
  transition: color var(--t), background var(--t);
}
.primary-nav a:hover { color: var(--text); background: var(--surface-2); }
.primary-nav .current-menu-item > a,
.primary-nav .current_page_item > a { color: var(--accent); }
.primary-nav .menu-item-has-children > a::after { content: "▾"; margin-left: .35em; font-size: .7em; color: var(--text-faint); }

/* dropdown */
.primary-nav .sub-menu {
  position: absolute; top: calc(100% + 10px); left: 0; min-width: 200px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
  padding: 8px; display: flex; flex-direction: column; gap: 2px;
  box-shadow: var(--shadow); opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: opacity var(--t), transform var(--t), visibility var(--t);
}
.primary-nav li { position: relative; }
.primary-nav li:hover > .sub-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.primary-nav .sub-menu a { width: 100%; }

.header-actions { display: flex; align-items: center; gap: 6px; }
.icon-btn {
  display: inline-grid; place-items: center; width: 40px; height: 40px;
  border-radius: 10px; border: 1px solid var(--border); background: var(--surface);
  color: var(--text-soft); cursor: pointer; transition: all var(--t);
}
.icon-btn:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-1px); }
.icon-btn svg { width: 18px; height: 18px; }
.theme-toggle .sun { display: none; }
[data-theme="light"] .theme-toggle .sun { display: block; }
[data-theme="light"] .theme-toggle .moon { display: none; }

.nav-toggle { display: none; }

/* Search overlay */
.search-overlay {
  position: fixed; inset: 0; z-index: 200; display: grid; place-items: start center;
  padding-top: 14vh; background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  opacity: 0; visibility: hidden; transition: opacity var(--t), visibility var(--t);
}
.search-overlay.is-open { opacity: 1; visibility: visible; }
.search-overlay .search-box { width: min(640px, 92vw); }
.search-overlay .search-field {
  width: 100%; font-size: 1.3rem; font-family: var(--font-mono); padding: 22px 24px;
  background: var(--surface); border: 1px solid var(--border-strong); border-radius: 14px; color: var(--text);
  box-shadow: var(--shadow);
}
.search-overlay .hint { text-align: center; margin-top: 14px; color: var(--text-muted); font-family: var(--font-mono); font-size: .85rem; }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero { position: relative; padding-block: clamp(46px, 8vw, 96px) clamp(40px, 6vw, 72px); }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(32px, 5vw, 64px); align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: .55em; padding: 6px 14px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border); font-family: var(--font-mono);
  font-size: .8rem; color: var(--text-soft);
}
.hero-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.hero h1 { margin-top: 22px; font-size: clamp(2.3rem, 6vw, 4rem); font-weight: 820; letter-spacing: -.035em; }
.hero h1 .type-cursor { color: var(--accent); font-weight: 400; animation: blink 1.05s steps(1) infinite; }
.hero .lede { margin-top: 20px; font-size: clamp(1.02rem, 2vw, 1.18rem); color: var(--text-muted); max-width: 52ch; }
.hero-cta { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 14px; }
.hero-stats { margin-top: 40px; display: flex; flex-wrap: wrap; gap: clamp(20px, 4vw, 44px); }
.hero-stats .stat .num { font-family: var(--font-mono); font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800; color: var(--text); }
.hero-stats .stat .num span { color: var(--accent); }
.hero-stats .stat .label { font-size: .82rem; color: var(--text-muted); font-family: var(--font-mono); }

/* Terminal window visual */
.terminal {
  background: linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);
  border: 1px solid var(--border-strong); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden; font-family: var(--font-mono); font-size: .86rem;
  position: relative;
}
.terminal::after { content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px; background: var(--grad-soft); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; pointer-events: none; opacity: .6; }
.terminal-bar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--border); background: var(--surface-3); }
.terminal-bar .dot { width: 12px; height: 12px; border-radius: 50%; }
.terminal-bar .dot.r { background: #ff5f57; } .terminal-bar .dot.y { background: #febc2e; } .terminal-bar .dot.g { background: #28c840; }
.terminal-bar .title { margin-left: 8px; color: var(--text-faint); font-size: .78rem; }
.terminal-body { padding: 20px; line-height: 1.85; color: var(--text-soft); }
.terminal-body .ln { display: block; white-space: pre-wrap; }
.terminal-body .c-prompt { color: var(--accent); }
.terminal-body .c-key { color: var(--accent-2); }
.terminal-body .c-str { color: var(--accent); }
.terminal-body .c-com { color: var(--text-faint); }
.terminal-body .c-fn { color: var(--accent-3); }

/* ==========================================================================
   Post cards / grid
   ========================================================================== */
.post-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: clamp(20px, 3vw, 30px); }
.post-grid--3 { grid-template-columns: repeat(3, 1fr); }

.card {
  display: flex; flex-direction: column; position: relative;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: transform var(--t), border-color var(--t), box-shadow var(--t);
}
.card:hover { transform: translateY(-5px); border-color: var(--border-strong); box-shadow: var(--shadow-glow); }
.card .thumb { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: var(--surface-3); display: block; }
.card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s var(--ease); }
.card:hover .thumb img { transform: scale(1.06); }
.card .thumb.no-img { display: grid; place-items: center; }
.card .thumb.no-img .glyph { font-family: var(--font-mono); font-size: 2.4rem; color: var(--text-faint); opacity: .5; }
.card .thumb-gradient { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,.55)); opacity: .0; transition: opacity var(--t); }
.card:hover .thumb-gradient { opacity: 1; }

.cat-badge {
  display: inline-flex; align-items: center; gap: .4em; font-family: var(--font-mono); font-size: .74rem; font-weight: 600;
  padding: 5px 10px; border-radius: 7px; background: var(--accent-soft); color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent); white-space: nowrap;
}
.cat-badge::before { content: "#"; opacity: .7; }
.card .thumb .cat-badge { position: absolute; top: 12px; left: 12px; z-index: 2; background: color-mix(in srgb, var(--bg) 70%, transparent); backdrop-filter: blur(6px); }

.card-body { padding: 20px 22px 22px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.card-title { font-size: 1.18rem; font-weight: 720; line-height: 1.32; letter-spacing: -.02em; }
.card-title a { color: var(--text); }
.card-title a:hover { color: var(--accent); }
.card .excerpt { color: var(--text-muted); font-size: .94rem; line-height: 1.65; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card .meta { margin-top: auto; padding-top: 4px; display: flex; align-items: center; gap: 14px; font-family: var(--font-mono); font-size: .78rem; color: var(--text-muted); flex-wrap: wrap; }
.card .meta .i { display: inline-flex; align-items: center; gap: .4em; }
.card .meta svg { width: 14px; height: 14px; opacity: .8; }

/* Featured (first) card spanning */
.featured-card { display: grid; grid-template-columns: 1.1fr 1fr; }
.featured-card .thumb { aspect-ratio: auto; height: 100%; min-height: 280px; }
.featured-card .card-body { padding: clamp(24px, 3vw, 40px); gap: 16px; justify-content: center; }
.featured-card .card-title { font-size: clamp(1.4rem, 2.6vw, 2rem); }
.featured-card .excerpt { -webkit-line-clamp: 3; font-size: 1rem; }

/* ==========================================================================
   Category chips row
   ========================================================================== */
.cat-cloud { display: flex; flex-wrap: wrap; gap: 12px; }
.cat-chip {
  display: inline-flex; align-items: center; gap: 10px; padding: 12px 18px;
  border-radius: 12px; border: 1px solid var(--border); background: var(--surface);
  color: var(--text-soft); font-weight: 600; transition: all var(--t);
}
.cat-chip:hover { border-color: var(--accent); color: var(--text); transform: translateY(-3px); box-shadow: var(--shadow-glow); }
.cat-chip .hash { font-family: var(--font-mono); color: var(--accent); font-weight: 800; }
.cat-chip .count { font-family: var(--font-mono); font-size: .76rem; color: var(--text-faint); background: var(--surface-3); padding: 2px 9px; border-radius: 999px; }

/* ==========================================================================
   Newsletter / CTA band
   ========================================================================== */
.cta-band {
  position: relative; overflow: hidden;
  border: 1px solid var(--border-strong); border-radius: var(--radius-lg);
  background:
    radial-gradient(80% 120% at 0% 0%, rgba(45,226,166,.16), transparent 55%),
    radial-gradient(70% 120% at 100% 100%, rgba(56,189,248,.14), transparent 55%),
    var(--surface);
  padding: clamp(32px, 5vw, 56px);
  display: grid; grid-template-columns: 1.3fr 1fr; gap: 32px; align-items: center;
}
.cta-band h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
.cta-band p { margin-top: 10px; color: var(--text-muted); }
.newsletter-form { display: flex; gap: 10px; flex-wrap: wrap; }
.newsletter-form input[type="email"] {
  flex: 1; min-width: 200px; padding: 14px 18px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong); background: var(--bg); color: var(--text); font-family: var(--font-mono); font-size: .92rem;
}
.newsletter-form input::placeholder { color: var(--text-faint); }

/* ==========================================================================
   Single post
   ========================================================================== */
.read-progress { position: fixed; top: 0; left: 0; height: 3px; width: 0; z-index: 110; background: var(--grad); box-shadow: 0 0 12px var(--accent-glow); transition: width .1s linear; }

.post-hero { padding-block: clamp(36px, 5vw, 60px) clamp(20px, 3vw, 32px); }
.post-hero .eyebrow-cats { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 18px; }
.post-hero h1 { font-size: clamp(2rem, 4.6vw, 3.1rem); letter-spacing: -.035em; }
.post-hero .post-meta { margin-top: 22px; display: flex; align-items: center; gap: 20px; flex-wrap: wrap; font-family: var(--font-mono); font-size: .85rem; color: var(--text-muted); }
.post-meta .author { display: inline-flex; align-items: center; gap: 10px; color: var(--text-soft); }
.post-meta .author img { width: 32px; height: 32px; border-radius: 50%; border: 1px solid var(--border); }
.post-meta .sep { width: 4px; height: 4px; border-radius: 50%; background: var(--text-faint); }

.post-feat { margin: clamp(20px,3vw,32px) 0; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border); aspect-ratio: 21/9; }
.post-feat img { width: 100%; height: 100%; object-fit: cover; }

.post-layout { display: grid; grid-template-columns: minmax(0,1fr) 300px; gap: clamp(32px, 5vw, 64px); align-items: start; }
.post-layout--narrow { display: block; }

/* Article typography */
.entry-content { font-size: 1.06rem; line-height: 1.85; color: var(--text-soft); }
.entry-content > * + * { margin-top: 1.4em; }
.entry-content h2 { margin-top: 2em; font-size: clamp(1.5rem,2.6vw,1.9rem); scroll-margin-top: 90px; }
.entry-content h3 { margin-top: 1.7em; font-size: clamp(1.2rem,2vw,1.45rem); scroll-margin-top: 90px; }
.entry-content h2::before { content: "# "; color: var(--accent); font-family: var(--font-mono); font-weight: 600; }
.entry-content h3::before { content: "## "; color: var(--accent-2); font-family: var(--font-mono); font-weight: 600; font-size: .8em; }
.entry-content a { color: var(--accent); text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--accent) 40%, transparent); text-underline-offset: 3px; }
.entry-content a:hover { text-decoration-color: var(--accent); }
.entry-content strong { color: var(--text); }
.entry-content ul, .entry-content ol { padding-left: 1.4em; }
.entry-content li { margin: .5em 0; }
.entry-content li::marker { color: var(--accent); }
.entry-content img, .entry-content figure { border-radius: var(--radius); }
.entry-content figure figcaption { font-size: .85rem; color: var(--text-muted); text-align: center; margin-top: .6em; font-family: var(--font-mono); }

.entry-content blockquote {
  margin: 1.8em 0; padding: 18px 24px; border-left: 3px solid var(--accent);
  background: var(--accent-soft); border-radius: 0 12px 12px 0; color: var(--text-soft); font-style: normal;
}
.entry-content blockquote p { color: var(--text); }

.entry-content :not(pre) > code {
  background: var(--surface-2); border: 1px solid var(--border); padding: .12em .42em; border-radius: 6px;
  color: var(--accent); font-size: .88em;
}
.entry-content pre {
  background: var(--surface); border: 1px solid var(--border-strong); border-radius: var(--radius);
  padding: 20px 22px; overflow-x: auto; font-size: .9rem; line-height: 1.7; position: relative;
  box-shadow: var(--shadow-sm);
}
.entry-content pre::before {
  content: ""; position: absolute; top: 14px; left: 16px; width: 11px; height: 11px; border-radius: 50%;
  background: #ff5f57; box-shadow: 19px 0 0 #febc2e, 38px 0 0 #28c840;
}
.entry-content pre { padding-top: 42px; }
.entry-content pre code { color: var(--text-soft); background: none; border: 0; padding: 0; }

.entry-content table { width: 100%; border-collapse: collapse; font-size: .94rem; }
.entry-content th, .entry-content td { border: 1px solid var(--border); padding: 10px 14px; text-align: left; }
.entry-content th { background: var(--surface-2); font-family: var(--font-mono); }

.entry-content kbd { background: var(--surface-3); border: 1px solid var(--border-strong); border-bottom-width: 2px; border-radius: 6px; padding: .1em .5em; font-size: .82em; color: var(--text); }

/* WP alignments / captions */
.alignleft { float: left; margin: .4em 1.6em 1em 0; }
.alignright { float: right; margin: .4em 0 1em 1.6em; }
.aligncenter { display: block; margin-inline: auto; }
.alignwide { width: min(110%, var(--maxw)); margin-inline: calc(50% - min(55%, var(--maxw)/2)); max-width: none; }
.alignfull { width: 100vw; margin-left: calc(50% - 50vw); border-radius: 0; }
.wp-caption { max-width: 100%; }
.wp-caption-text { font-size: .85rem; color: var(--text-muted); text-align: center; margin-top: .5em; }
.sticky-flag { display:inline-flex; align-items:center; gap:.4em; }

/* Tags + share */
.post-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.post-tags a { font-family: var(--font-mono); font-size: .82rem; padding: 6px 12px; border-radius: 8px; background: var(--surface-2); border: 1px solid var(--border); color: var(--text-soft); }
.post-tags a:hover { border-color: var(--accent); color: var(--accent); }

.post-foot { margin-top: clamp(28px,4vw,40px); padding-top: 28px; border-top: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.share { display: flex; align-items: center; gap: 8px; }
.share .lbl { font-family: var(--font-mono); font-size: .8rem; color: var(--text-muted); }

/* Author box */
.author-box { margin-top: 40px; display: flex; gap: 20px; padding: 26px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.author-box img { width: 64px; height: 64px; border-radius: 14px; border: 1px solid var(--border); flex-shrink: 0; }
.author-box .name { font-family: var(--font-mono); font-weight: 700; font-size: 1.05rem; }
.author-box .bio { color: var(--text-muted); font-size: .94rem; margin-top: 6px; }

/* Post navigation */
.post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 32px; }
.post-nav a { display: block; padding: 18px 20px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); transition: all var(--t); }
.post-nav a:hover { border-color: var(--accent); transform: translateY(-2px); }
.post-nav .dir { font-family: var(--font-mono); font-size: .78rem; color: var(--text-muted); }
.post-nav .ttl { color: var(--text); font-weight: 650; margin-top: 6px; display: block; }
.post-nav .next { text-align: right; }

/* Related */
.related { margin-top: clamp(40px,6vw,72px); }

/* ==========================================================================
   Sidebar / widgets
   ========================================================================== */
.widget { margin-bottom: 28px; padding: 22px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.widget-title { font-family: var(--font-mono); font-size: .95rem; font-weight: 700; margin-bottom: 16px; display: flex; align-items: center; gap: .5em; }
.widget-title::before { content: ">"; color: var(--accent); }
.widget ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 2px; }
.widget li { padding: 0; }
.widget li a { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 9px 12px; border-radius: 9px; color: var(--text-soft); font-size: .92rem; transition: all var(--t); }
.widget li a:hover { background: var(--surface-2); color: var(--accent); }
.widget .children { padding-left: 14px; margin-top: 2px; }

.widget_tag_cloud .tagcloud { display: flex; flex-wrap: wrap; gap: 8px; }
.widget_tag_cloud a { font-size: .82rem !important; font-family: var(--font-mono); padding: 6px 11px; border-radius: 8px; background: var(--surface-2); border: 1px solid var(--border); color: var(--text-soft); }
.widget_tag_cloud a:hover { border-color: var(--accent); color: var(--accent); }

.sidebar-sticky { position: sticky; top: calc(var(--header-h) + 20px); }

/* TOC widget */
.toc-widget ol { list-style: none; counter-reset: toc; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 2px; }
.toc-widget li { counter-increment: toc; }
.toc-widget a { display: flex; gap: 10px; padding: 8px 10px; border-radius: 8px; color: var(--text-muted); font-size: .9rem; border-left: 2px solid var(--border); transition: all var(--t); }
.toc-widget a::before { content: counter(toc, decimal-leading-zero); font-family: var(--font-mono); color: var(--accent); font-size: .8rem; }
.toc-widget a:hover, .toc-widget a.is-active { color: var(--text); border-left-color: var(--accent); background: var(--surface-2); }
.toc-widget .lvl-3 a { padding-left: 24px; font-size: .85rem; }

/* ==========================================================================
   Forms / search
   ========================================================================== */
input, textarea, select, button { font: inherit; color: inherit; }
.search-form { display: flex; gap: 8px; }
.search-form input[type="search"] { flex: 1; padding: 12px 16px; border-radius: var(--radius-sm); border: 1px solid var(--border-strong); background: var(--bg); color: var(--text); font-family: var(--font-mono); font-size: .9rem; }
.search-form button { padding: 12px 16px; border-radius: var(--radius-sm); border: 0; background: var(--grad); color: var(--accent-ink); font-weight: 700; cursor: pointer; font-family: var(--font-mono); }

.comment-form input[type="text"], .comment-form input[type="email"], .comment-form input[type="url"], .comment-form textarea {
  width: 100%; padding: 12px 16px; border-radius: var(--radius-sm); border: 1px solid var(--border-strong);
  background: var(--bg); color: var(--text); font-size: .95rem; transition: border-color var(--t), box-shadow var(--t);
}
.comment-form input:focus, .comment-form textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); outline: none; }
.comment-form label { font-family: var(--font-mono); font-size: .85rem; color: var(--text-muted); display: block; margin-bottom: 6px; }
.comment-form p { margin-bottom: 16px; }
.form-submit .submit { padding: 12px 24px; border-radius: var(--radius-sm); border: 0; background: var(--grad); color: var(--accent-ink); font-weight: 700; font-family: var(--font-mono); cursor: pointer; transition: transform var(--t); }
.form-submit .submit:hover { transform: translateY(-2px); }

/* ==========================================================================
   Comments
   ========================================================================== */
.comments-area { margin-top: clamp(40px,6vw,64px); }
.comments-title, .comment-reply-title { font-family: var(--font-mono); font-size: 1.2rem; margin-bottom: 24px; }
.comment-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 20px; }
.comment-list .children { list-style: none; padding-left: clamp(16px,4vw,40px); margin-top: 20px; display: flex; flex-direction: column; gap: 20px; }
.comment-body { padding: 20px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.comment-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.comment-author .avatar { border-radius: 10px; border: 1px solid var(--border); }
.comment-author .fn { font-family: var(--font-mono); font-weight: 700; font-style: normal; color: var(--text); }
.comment-metadata { font-size: .8rem; color: var(--text-faint); font-family: var(--font-mono); }
.comment-metadata a { color: var(--text-faint); }
.reply { margin-top: 10px; }
.reply a { font-family: var(--font-mono); font-size: .82rem; color: var(--accent); }
.bypostauthor > .comment-body .fn::after { content: "作者"; margin-left: 8px; font-size: .68rem; padding: 2px 7px; border-radius: 6px; background: var(--accent-soft); color: var(--accent); }

/* ==========================================================================
   Pagination
   ========================================================================== */
.pagination { margin-top: clamp(40px,6vw,64px); display: flex; justify-content: center; }
.pagination .nav-links { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.pagination .page-numbers {
  display: inline-grid; place-items: center; min-width: 44px; height: 44px; padding: 0 12px;
  border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--surface);
  color: var(--text-soft); font-family: var(--font-mono); font-weight: 600; transition: all var(--t);
}
.pagination a.page-numbers:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.pagination .page-numbers.current { background: var(--grad); color: var(--accent-ink); border-color: transparent; }
.pagination .page-numbers.dots { border: 0; background: none; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { margin-top: clamp(56px,9vw,110px); border-top: 1px solid var(--border); background: var(--bg-alt); }
.footer-top { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: clamp(28px,4vw,48px); padding-block: clamp(48px,7vw,80px); }
.footer-brand .brand { font-size: 1.3rem; }
.footer-brand p { margin-top: 16px; color: var(--text-muted); max-width: 38ch; font-size: .94rem; }
.footer-social { display: flex; gap: 10px; margin-top: 22px; }
.footer-col h4 { font-family: var(--font-mono); font-size: .82rem; letter-spacing: .05em; text-transform: uppercase; color: var(--text-faint); margin-bottom: 16px; }
.footer-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-col a { color: var(--text-muted); font-size: .94rem; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid var(--border); padding-block: 22px; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-bottom .copy { font-family: var(--font-mono); font-size: .82rem; color: var(--text-muted); }
.footer-bottom .copy .accent { color: var(--accent); }

/* Back to top */
.to-top { position: fixed; right: 22px; bottom: 22px; z-index: 90; width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; background: var(--surface); border: 1px solid var(--border-strong); color: var(--text-soft); cursor: pointer; opacity: 0; transform: translateY(12px); pointer-events: none; transition: all var(--t); box-shadow: var(--shadow); }
.to-top.is-visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.to-top:hover { color: var(--accent); border-color: var(--accent); }

/* ==========================================================================
   404 / archive headers
   ========================================================================== */
.page-banner { padding-block: clamp(40px,6vw,72px) 0; }
.page-banner .eyebrow { margin-bottom: 14px; }
.page-banner h1 { font-size: clamp(2rem,5vw,3rem); }
.page-banner .desc { margin-top: 14px; color: var(--text-muted); max-width: 60ch; }
.page-banner .crumbs { font-family: var(--font-mono); font-size: .82rem; color: var(--text-faint); margin-bottom: 16px; }
.page-banner .crumbs a { color: var(--text-muted); }

.error-404 { text-align: center; padding-block: clamp(50px,9vw,110px); }
.error-404 .code { font-family: var(--font-mono); font-size: clamp(5rem,18vw,11rem); font-weight: 850; line-height: 1; }
.error-404 .glitch { position: relative; display: inline-block; }
.error-404 h1 { margin-top: 10px; }
.error-404 p { margin: 16px auto 28px; max-width: 46ch; color: var(--text-muted); }

/* No results */
.no-results { padding: 40px; text-align: center; border: 1px dashed var(--border-strong); border-radius: var(--radius); background: var(--surface); }
.no-results h2 { font-family: var(--font-mono); }

/* ==========================================================================
   Page / generic content
   ========================================================================== */
.page-content { font-size: 1.05rem; line-height: 1.85; }
.entry-content > .wp-block-image { margin-block: 1.6em; }

/* loader for ajax-ish reveals */
.reveal { opacity: 0; transform: translateY(18px); }
.reveal.in { opacity: 1; transform: none; transition: opacity .6s var(--ease), transform .6s var(--ease); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1024px) {
  .post-grid--3 { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .post-layout { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .sidebar.is-shown { display: block; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .featured-card { grid-template-columns: 1fr; }
  .featured-card .thumb { min-height: 220px; aspect-ratio: 16/9; }
  .cta-band { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  :root { --header-h: 60px; }
  .primary-nav { display: none; }
  .nav-toggle { display: inline-grid; }

  /* Mobile nav drawer */
  .mobile-nav {
    position: fixed; inset: 0 0 0 auto; width: min(360px, 86vw); z-index: 210;
    background: var(--surface); border-left: 1px solid var(--border);
    transform: translateX(100%); transition: transform .32s var(--ease);
    display: flex; flex-direction: column; padding: 22px; overflow-y: auto;
    box-shadow: var(--shadow);
  }
  .mobile-nav.is-open { transform: translateX(0); }
  .mobile-nav-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
  .mobile-nav ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 2px; }
  .mobile-nav > ul > li > a { display: block; padding: 13px 14px; border-radius: 10px; font-family: var(--font-mono); font-weight: 600; color: var(--text-soft); font-size: 1rem; }
  .mobile-nav a:hover, .mobile-nav .current-menu-item > a { background: var(--surface-2); color: var(--accent); }
  .mobile-nav .sub-menu { padding-left: 14px; }
  .mobile-nav .sub-menu a { display:block; padding: 10px 14px; color: var(--text-muted); border-radius: 8px; }
  .nav-backdrop { position: fixed; inset: 0; z-index: 205; background: rgba(0,0,0,.5); backdrop-filter: blur(2px); opacity: 0; visibility: hidden; transition: opacity var(--t), visibility var(--t); }
  .nav-backdrop.is-open { opacity: 1; visibility: visible; }

  .post-grid { grid-template-columns: 1fr; }
  .post-grid--3 { grid-template-columns: 1fr; }
  .post-nav { grid-template-columns: 1fr; }
  .post-foot { flex-direction: column; align-items: flex-start; }
  .author-box { flex-direction: column; }
  .hero-stats { gap: 22px 30px; }
}

@media (min-width: 721px) { .mobile-nav, .nav-backdrop { display: none; } }

@media print {
  .site-header, .site-footer, .sidebar, .to-top, .read-progress, .post-foot, .comments-area, .related { display: none !important; }
  body::before, body::after { display: none; }
}