/* ============================================================
   紫人书站 · 主题系统
   颜色主题: data-theme = sunshine(默认) / blue / green / amber
   明暗模式: data-mode = dark(默认) / light
   全部由 CSS 变量驱动，切换即时生效、刷新后保持
   ============================================================ */
:root {
  /* —— 默认颜色主题：活力阳光 —— */
  --accent-rgb: 249, 115, 22;     /* 活力橙 */
  --accent2-rgb: 250, 204, 21;    /* 阳光黄 */
  --violet: rgb(var(--accent-rgb));
  --violet-soft: rgb(var(--accent-rgb));
  --magenta: rgb(var(--accent2-rgb));
  --gold: #fbbf24;
  --danger: #f87191;
  --ok: #4ade80;
  --radius: 16px;

  /* —— 默认明暗：暖暗色 —— */
  --bg-0: #1a0e02;
  --bg-1: #2d1808;
  --bg-2: #3d220e;
  --text: #fef3c7;
  --fg-strong: #fffbeb;
  --muted: #d4a574;
  --card: rgba(255, 255, 255, 0.045);
  --card-border: rgba(249, 115, 22, 0.28);
  --header-bg: linear-gradient(180deg, rgba(26, 14, 2, 0.92), rgba(26, 14, 2, 0.6));
  --header-border: rgba(249, 115, 22, 0.2);
  --input-bg: rgba(0, 0, 0, 0.25);
  --comment-bg: rgba(255, 255, 255, 0.03);
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
  --body-grad:
    radial-gradient(1200px 600px at 80% -10%, rgba(var(--accent2-rgb), 0.20), transparent 60%),
    radial-gradient(900px 500px at 0% 0%, rgba(var(--accent-rgb), 0.18), transparent 55%),
    linear-gradient(180deg, var(--bg-1), var(--bg-0) 60%);

  --t: .25s ease;
}

/* —— 颜色主题：蓝 (蓝人 SJ) —— */
:root[data-theme="blue"] {
  --accent-rgb: 59, 130, 246;
  --accent2-rgb: 56, 189, 248;
  --gold: #fbbf24;
  --card-border: rgba(59, 130, 246, 0.30);
  --header-border: rgba(59, 130, 246, 0.22);
}
/* —— 颜色主题：绿 (绿人 NF) —— */
:root[data-theme="green"] {
  --accent-rgb: 16, 185, 129;
  --accent2-rgb: 34, 211, 238;
  --gold: #facc15;
  --card-border: rgba(16, 185, 129, 0.30);
  --header-border: rgba(16, 185, 129, 0.22);
}
/* —— 颜色主题：金/琥珀 (黄人 SP) —— */
:root[data-theme="amber"] {
  --accent-rgb: 245, 158, 11;
  --accent2-rgb: 251, 146, 60;
  --gold: #fde68a;
  --card-border: rgba(245, 158, 11, 0.32);
  --header-border: rgba(245, 158, 11, 0.24);
}
/* —— 阳光 (显式声明，便于阅读) —— */
:root[data-theme="purple"] {
  --accent-rgb: 249, 115, 22;
  --accent2-rgb: 250, 204, 21;
  --gold: #fbbf24;
  --card-border: rgba(249, 115, 22, 0.28);
  --header-border: rgba(249, 115, 22, 0.2);
}

/* —— 明亮模式：阳光明媚 —— */
:root[data-mode="light"] {
  --bg-0: #fffbeb;
  --bg-1: #fef3c7;
  --bg-2: #fde68a;
  --text: #78350f;
  --fg-strong: #431407;
  --muted: #b45309;
  --card: rgba(255, 255, 255, 0.85);
  --header-bg: linear-gradient(180deg, rgba(255, 251, 235, 0.95), rgba(255, 251, 235, 0.7));
  --input-bg: rgba(255, 255, 255, 0.8);
  --comment-bg: rgba(120, 53, 15, 0.04);
  --shadow: 0 10px 34px rgba(180, 83, 9, 0.12);
  --body-grad:
    radial-gradient(1200px 600px at 80% -10%, rgba(var(--accent2-rgb), 0.15), transparent 60%),
    radial-gradient(900px 500px at 0% 0%, rgba(var(--accent-rgb), 0.10), transparent 55%),
    linear-gradient(180deg, var(--bg-1), var(--bg-0) 60%);
}
:root[data-mode="light"][data-theme="purple"] { --card-border: rgba(249, 115, 22, 0.28); --header-border: rgba(249, 115, 22, 0.18); }
:root[data-mode="light"][data-theme="blue"]   { --card-border: rgba(59, 130, 246, 0.26);  --header-border: rgba(59, 130, 246, 0.18); }
:root[data-mode="light"][data-theme="green"]   { --card-border: rgba(16, 185, 129, 0.26); --header-border: rgba(16, 185, 129, 0.18); }
:root[data-mode="light"][data-theme="amber"]   { --card-border: rgba(245, 158, 11, 0.30); --header-border: rgba(245, 158, 11, 0.2); }

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  color: var(--text);
  background: var(--body-grad);
  min-height: 100vh;
  line-height: 1.7;
  transition: background var(--t), color var(--t);
}

a { color: var(--violet-soft); text-decoration: none; transition: color var(--t); }
a:hover { color: var(--fg-strong); }

h1, h2, h3, .serif {
  font-family: "Noto Serif SC", "Songti SC", "SimSun", Georgia, serif;
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* ---------------- header ---------------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: var(--header-bg);
  border-bottom: 1px solid var(--header-border);
  transition: background var(--t), border-color var(--t);
}
.site-header .bar {
  display: flex; align-items: center; gap: 18px;
  height: 64px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; color: var(--fg-strong); }
.brand .mark {
  width: 34px; height: 34px; border-radius: 10px;
  background: linear-gradient(135deg, rgb(249, 115, 22), rgb(250, 204, 21));
  display: grid; place-items: center; font-size: 18px; box-shadow: 0 0 18px rgba(250, 204, 21, 0.55);
}
.brand small { display: block; font-size: 11px; color: var(--muted); font-weight: 400; letter-spacing: 2px; }
.nav { margin-left: auto; display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.nav a {
  padding: 8px 14px; border-radius: 10px; color: var(--muted); font-size: 14px;
  border: 1px solid transparent; transition: var(--t);
}
.nav a:hover { color: var(--fg-strong); background: rgba(var(--accent-rgb), 0.12); }
.nav a.active { color: var(--fg-strong); background: rgba(var(--accent-rgb), 0.18); border-color: var(--card-border); }
.nav .badge {
  background: rgb(var(--accent2-rgb)); color: #1a0e02; font-size: 11px; border-radius: 999px;
  padding: 1px 7px; margin-left: 5px; font-weight: 700;
}

/* ---------------- 主题切换器 ---------------- */
.theme-bar { display: flex; align-items: center; gap: 12px; margin-left: 4px; }
.theme-dots { display: flex; gap: 6px; }
.dot {
  width: 18px; height: 18px; border-radius: 50%; cursor: pointer; padding: 0;
  border: 2px solid transparent; transition: transform var(--t), box-shadow var(--t);
}
.dot.t-purple { background: linear-gradient(135deg, #f97316, #facc15); }
.dot.t-blue   { background: linear-gradient(135deg, #3b82f6, #38bdf8); }
.dot.t-green  { background: linear-gradient(135deg, #10b981, #22d3ee); }
.dot.t-amber  { background: linear-gradient(135deg, #f59e0b, #fb923c); }
.dot:hover { transform: scale(1.18); }
.dot.active { border-color: #fff; box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.45); }
:root[data-mode="light"] .dot.active { border-color: #431407; box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.18); }
.mode-toggle {
  width: 34px; height: 34px; border-radius: 10px; cursor: pointer;
  background: var(--card); border: 1px solid var(--card-border); color: var(--text);
  display: grid; place-items: center; font-size: 16px; transition: var(--t);
}
.mode-toggle:hover { border-color: rgb(var(--accent-rgb)); transform: translateY(-1px); }

/* ---------------- hero ---------------- */
.hero { padding: 52px 0 30px; text-align: center; }
.hero .eyebrow { color: var(--gold); letter-spacing: 6px; font-size: 12px; text-transform: uppercase; }
.hero h1 { font-size: 40px; margin: 12px 0 8px; background: linear-gradient(90deg, var(--fg-strong), rgb(var(--accent2-rgb))); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p { color: var(--muted); max-width: 620px; margin: 0 auto; }
.hero .cta { margin-top: 22px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---------------- buttons ---------------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 20px; border-radius: 12px; font-size: 14px; font-weight: 600;
  border: 1px solid var(--card-border); cursor: pointer; transition: var(--t);
  background: rgba(var(--accent-rgb), 0.12); color: var(--fg-strong);
}
.btn:hover { background: rgba(var(--accent-rgb), 0.24); transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(135deg, rgb(var(--accent-rgb)), rgb(var(--accent2-rgb)));
  border: none; box-shadow: 0 8px 24px rgba(var(--accent2-rgb), 0.4);
}
.btn-primary:hover { box-shadow: 0 10px 30px rgba(var(--accent2-rgb), 0.55); }
.btn-ghost { background: transparent; }
.btn-sm { padding: 6px 12px; font-size: 13px; border-radius: 9px; }
.btn-ok { background: rgba(74, 222, 128, 0.14); border-color: rgba(74, 222, 128, .4); color: var(--ok); }
.btn-ok:hover { background: rgba(74, 222, 128, 0.24); }
.btn-danger { background: rgba(248, 113, 145, 0.12); border-color: rgba(248, 113, 145, .4); color: var(--danger); }
.btn-danger:hover { background: rgba(248, 113, 145, 0.22); }

/* ---------------- sections ---------------- */
.section { margin: 36px 0; }
.section-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 16px; }
.section-head h2 { font-size: 22px; margin: 0; color: var(--fg-strong); }
.section-head .line { flex: 1; height: 1px; background: linear-gradient(90deg, var(--card-border), transparent); }
.section-head a { font-size: 13px; color: var(--muted); }

/* ---------------- cards grid ---------------- */
.grid { display: grid; gap: 16px; }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 860px) { .grid.cols-3, .grid.cols-2 { grid-template-columns: 1fr; } }

.card {
  background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow); transition: var(--t); display: flex; flex-direction: column; gap: 10px;
}
.card:hover { border-color: rgba(var(--accent-rgb), 0.55); transform: translateY(-2px); }
.card .tag {
  align-self: flex-start; font-size: 11px; letter-spacing: 1px; padding: 3px 10px; border-radius: 999px;
  background: rgba(var(--accent-rgb), 0.16); color: var(--violet-soft); border: 1px solid var(--card-border);
}
.card h3 { margin: 0; font-size: 18px; color: var(--fg-strong); }
.card .meta { font-size: 12px; color: var(--muted); }
.card .excerpt { color: var(--muted); font-size: 14px; }
.card .tags { display: flex; gap: 6px; flex-wrap: wrap; }
.card .tags span { font-size: 11px; color: var(--gold); border: 1px solid rgba(251, 191, 36, .3); padding: 1px 8px; border-radius: 999px; }
.card .more { margin-top: auto; align-self: flex-end; font-size: 13px; color: var(--violet-soft); font-weight: 500; }
.card:hover .more { color: var(--gold); }

/* quote card */
.quote-card { background: linear-gradient(135deg, rgba(var(--accent-rgb), .10), rgba(var(--accent2-rgb), .06)); }
.quote-card .text { font-family: "Noto Serif SC", serif; font-size: 17px; color: var(--fg-strong); line-height: 1.8; }
.quote-card .author { text-align: right; color: var(--gold); font-size: 14px; }

/* ---------------- feed list ---------------- */
.feed { display: flex; flex-direction: column; gap: 12px; }
.feed-item {
  display: flex; gap: 14px; align-items: flex-start; padding: 16px 18px;
  background: var(--card); border: 1px solid var(--card-border); border-radius: 14px; transition: var(--t);
}
.feed-item .ic { font-size: 22px; filter: drop-shadow(0 0 8px rgba(var(--accent2-rgb), .5)); }
.feed-item .body { flex: 1; min-width: 0; }
.feed-item h3 { margin: 0 0 4px; font-size: 17px; color: var(--fg-strong); }
.feed-item .meta { font-size: 12px; color: var(--muted); }
.feed-item .more { display: inline-block; margin-top: 6px; font-size: 13px; color: var(--violet-soft); font-weight: 500; }
.feed-item:hover .more { color: var(--gold); }

/* ---------------- forms ---------------- */
.form-card { max-width: 680px; margin: 30px auto; background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); transition: var(--t); }
.form-card h2 { margin-top: 0; color: var(--fg-strong); }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.field input, .field textarea, .field select {
  width: 100%; padding: 11px 13px; border-radius: 10px; border: 1px solid var(--card-border);
  background: var(--input-bg); color: var(--text); font-size: 14px; font-family: inherit; transition: var(--t);
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--violet); box-shadow: 0 0 0 3px rgba(var(--accent-rgb), .2); }
.field textarea { min-height: 130px; resize: vertical; }
.error-note { background: rgba(248, 113, 145, .12); border: 1px solid rgba(248, 113, 145, .4); color: var(--danger); padding: 10px 14px; border-radius: 10px; margin-bottom: 16px; font-size: 14px; }
.ok-note { background: rgba(74, 222, 128, .12); border: 1px solid rgba(74, 222, 128, .4); color: var(--ok); padding: 16px; border-radius: 12px; text-align: center; }

.type-tabs { display: flex; gap: 8px; margin-bottom: 18px; flex-wrap: wrap; }
.type-tabs a { padding: 8px 16px; border-radius: 10px; border: 1px solid var(--card-border); color: var(--muted); font-size: 14px; transition: var(--t); }
.type-tabs a.active { background: rgba(var(--accent-rgb), 0.2); color: var(--fg-strong); border-color: var(--violet); }

/* ---------------- item detail ---------------- */
.detail { max-width: 760px; margin: 28px auto; }
.detail .tag { font-size: 12px; color: var(--violet-soft); letter-spacing: 1px; }
.detail h1 { font-size: 28px; margin: 8px 0; color: var(--fg-strong); }
.detail .meta { color: var(--muted); font-size: 13px; margin-bottom: 18px; }
.detail .content { font-size: 16px; color: var(--text); white-space: pre-wrap; background: var(--card); border: 1px solid var(--card-border); border-radius: 14px; padding: 20px; transition: var(--t); }
.detail .lead { font-size: 16px; color: var(--text); line-height: 1.9; margin-bottom: 18px; }
.reading-body { background: linear-gradient(180deg, rgba(var(--accent-rgb), .08), rgba(var(--accent2-rgb), .04)); border: 1px solid var(--card-border); border-radius: 16px; padding: 22px 24px; margin-bottom: 18px; transition: var(--t); }
.reading-body .reading-head { font-size: 13px; letter-spacing: 1px; color: var(--gold); margin-bottom: 12px; }
.reading-body p { margin: 0 0 16px; font-size: 16px; line-height: 2; color: var(--text); }
.reading-body p:last-child { margin-bottom: 0; }
.detail .tags { margin: 14px 0; display: flex; gap: 8px; flex-wrap: wrap; }

.comments { margin-top: 28px; }
.comment { background: var(--comment-bg); border: 1px solid var(--card-border); border-radius: 12px; padding: 12px 14px; margin-bottom: 10px; transition: var(--t); }
.comment .meta { font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.comment-form { margin-top: 14px; display: flex; flex-direction: column; gap: 8px; }

/* ---------------- admin ---------------- */
.admin-wrap { max-width: 920px; margin: 28px auto; }
.admin-stats { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 22px; }
.stat { background: var(--card); border: 1px solid var(--card-border); border-radius: 14px; padding: 14px 20px; min-width: 120px; transition: var(--t); }
.stat .n { font-size: 26px; font-weight: 700; color: var(--fg-strong); }
.stat .l { font-size: 12px; color: var(--muted); }
.queue-item { background: var(--card); border: 1px solid var(--card-border); border-radius: 14px; padding: 16px; margin-bottom: 12px; transition: var(--t); }
.queue-item h3 { margin: 0 0 6px; color: var(--fg-strong); font-size: 17px; }
.queue-item .meta { font-size: 12px; color: var(--muted); margin-bottom: 8px; }
.queue-item .content { font-size: 14px; color: var(--text); white-space: pre-wrap; background: var(--input-bg); border-radius: 10px; padding: 12px; margin-bottom: 10px; }
.queue-actions { display: flex; gap: 8px; }
.empty { color: var(--muted); text-align: center; padding: 30px; }

/* ---------------- footer ---------------- */
.site-footer { margin-top: 50px; padding: 26px 0; border-top: 1px solid rgba(var(--accent-rgb), 0.18); color: var(--muted); font-size: 13px; text-align: center; transition: border-color var(--t); }
.site-footer a { color: var(--muted); }

.pill { display: inline-block; font-size: 11px; padding: 2px 9px; border-radius: 999px; border: 1px solid var(--card-border); color: var(--violet-soft); }

/* ---------------- 阅读模式 reader ---------------- */
.reader-layout { display: flex; gap: 0; min-height: calc(100vh - 64px); margin: 0 -20px; }
.reader-sidebar {
  width: 240px; flex-shrink: 0; background: var(--card);
  border-right: 1px solid var(--card-border); overflow-y: auto;
  position: sticky; top: 64px; max-height: calc(100vh - 64px); transition: var(--t);
}
.reader-sidebar-header { padding: 20px 16px 12px; border-bottom: 1px solid var(--card-border); }
.reader-sidebar-header h3 { margin: 0; font-size: 16px; color: var(--fg-strong); }
.reader-sidebar-header .meta { font-size: 12px; color: var(--muted); margin-top: 4px; }
.reader-toc { padding: 8px; }
.toc-item {
  display: flex; align-items: center; gap: 8px; width: 100%; padding: 8px 10px;
  background: none; border: none; border-radius: 8px; color: var(--text);
  font-size: 13px; cursor: pointer; text-align: left; transition: var(--t); font-family: inherit;
}
.toc-item:hover { background: rgba(var(--accent-rgb), 0.1); color: var(--fg-strong); }
.toc-item.active { background: rgba(var(--accent-rgb), 0.18); color: var(--fg-strong); }
.toc-num { width: 22px; height: 22px; border-radius: 50%; background: var(--card-border); display: grid; place-items: center; font-size: 11px; flex-shrink: 0; }
.toc-item.active .toc-num { background: var(--violet); color: #fff; }
.toc-title { line-height: 1.4; }

.reader-main {
  flex: 1; display: flex; flex-direction: column; overflow-y: auto;
  max-width: 820px; margin: 0 auto; padding: 0 24px 40px;
}
.reader-toolbar {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 0; border-bottom: 1px solid var(--card-border);
  position: sticky; top: 0; background: var(--bg-0); z-index: 2; flex-wrap: wrap;
}
.reader-controls { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.reader-progress { font-size: 13px; color: var(--muted); min-width: 60px; text-align: center; }
.reader-content { padding: 24px 0; line-height: 2.2; transition: font-size .2s; }
.reader-chapter-title { font-size: 24px; color: var(--fg-strong); margin: 0 0 20px; }
.reader-chapter-body { font-size: inherit; color: var(--text); white-space: pre-wrap; }
.reader-chapter-body p { margin: 0 0 16px; }
.reader-nav-buttons { display: flex; justify-content: space-between; gap: 12px; padding-top: 16px; border-top: 1px solid var(--card-border); margin-top: 8px; }

/* mobile: sidebar collapses */
@media (max-width: 768px) {
  .reader-layout { flex-direction: column; margin: 0; }
  .reader-sidebar {
    width: 100%; position: static; max-height: none;
    border-right: none; border-bottom: 1px solid var(--card-border);
  }
  .reader-sidebar.collapsed .reader-toc { display: none; }
  .reader-main { max-width: 100%; padding: 0 16px 80px; }
  .reader-toolbar { position: static; }
  .reader-chapter-title { font-size: 20px; }
  .reader-chapter-body { font-size: 16px; line-height: 2; }
}

/* ---------------- 移动端 UI ---------------- */
/* 汉堡菜单按钮 */
.hamburger {
  display: none; background: none; border: none; color: var(--fg-strong);
  font-size: 24px; cursor: pointer; padding: 6px 8px; border-radius: 8px; margin-left: 4px;
}
.hamburger:hover { background: rgba(var(--accent-rgb), 0.12); }
@media (max-width: 768px) { .hamburger { display: block; } }

/* 底部导航 */
.bottom-nav {
  display: none; position: fixed; bottom: 0; left: 0; right: 0;
  background: var(--header-bg); backdrop-filter: blur(14px);
  border-top: 1px solid var(--header-border);
  z-index: 100; justify-content: space-around; align-items: center;
  height: 56px; padding-bottom: env(safe-area-inset-bottom, 0);
}
.bottom-item {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 4px 8px; border-radius: 8px; color: var(--muted); font-size: 10px;
  text-decoration: none; min-width: 44px; min-height: 44px;
  justify-content: center; transition: var(--t);
}
.bottom-item .bi { font-size: 18px; line-height: 1; }
.bottom-item .bl { font-size: 10px; line-height: 1.2; }
.bottom-item.active { color: var(--violet-soft); }
.bottom-item:hover { color: var(--fg-strong); }
@media (max-width: 768px) {
  .bottom-nav { display: flex; }
  .site-footer { padding-bottom: 80px; }
}

/* 移动端抽屉面板 */
.drawer-overlay {
  display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5); z-index: 200;
}
.drawer-overlay.open { display: block; }
.drawer {
  position: fixed; top: 0; left: -280px; width: 270px; height: 100vh;
  background: var(--bg-1); border-right: 1px solid var(--card-border);
  z-index: 210; transition: left var(--t); overflow-y: auto;
  padding: env(safe-area-inset-top, 0) 0 80px;
}
.drawer.open { left: 0; }
.drawer-header {
  display: flex; align-items: center; padding: 18px 16px;
  border-bottom: 1px solid var(--card-border);
}
.drawer-close { margin-left: auto; background: none; border: none; color: var(--muted); font-size: 18px; cursor: pointer; padding: 4px 8px; }
.drawer-nav { padding: 12px; }
.drawer-nav a {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px; border-radius: 10px; color: var(--text); font-size: 15px;
  transition: var(--t); min-height: 44px;
}
.drawer-nav a:hover { background: rgba(var(--accent-rgb), 0.1); color: var(--fg-strong); }
.drawer-nav a.active { background: rgba(var(--accent-rgb), 0.18); color: var(--fg-strong); }
.drawer-divider { border: none; border-top: 1px solid var(--card-border); margin: 8px 0; }
.drawer-theme { display: flex; align-items: center; gap: 8px; padding: 8px 14px; color: var(--muted); font-size: 14px; }
body.drawer-open { overflow: hidden; }

/* 移动端通用优化 */
@media (max-width: 768px) {
  .site-header .wrap { padding: 0 12px; }
  .site-header .bar { height: 54px; }
  .brand { font-size: 18px; gap: 8px; }
  .brand small { display: none; }
  .brand .mark { width: 30px; height: 30px; font-size: 15px; }
  .nav { display: none; }
  .theme-bar { display: none; }
  .wrap { padding: 0 14px; }
  .hero { padding: 30px 0 20px; }
  .hero h1 { font-size: 28px; }
  .hero p { font-size: 14px; }
  .section-head h2 { font-size: 18px; }
  .grid.cols-3, .grid.cols-2 { grid-template-columns: 1fr; }
  .card { padding: 14px; }
  .card h3 { font-size: 16px; }
  .feed-item { padding: 12px 14px; }
  .feed-item h3 { font-size: 15px; }
  .detail { padding: 0 2px; }
  .detail h1 { font-size: 22px; }
  .reader-content { padding: 16px 0; }
  /* 表单 */
  .form-card { padding: 18px; }
  /* 按钮增大触摸范围 */
  .btn, .btn-sm { min-height: 42px; }
  .field input, .field textarea, .field select { font-size: 16px; } /* iOS 防缩放 */
  /* 管理员 */
  .admin-wrap { padding: 0 2px; }
  .queue-item { padding: 12px; }
}