/* ============================================
   5# Squash —— 全站共享样式
   编辑/杂志风 · 紧凑信息密度
   ============================================ */

:root {
  --c-ink: #2B2B2B;           /* 主文字/侧边栏 */
  --c-ink-2: #4a4a4a;
  --c-text: #1a1a1a;
  --c-muted: #8a8f96;
  --c-muted-2: #b3b8bf;
  --c-line: #e7eaee;
  --c-line-2: #eef1f4;
  --c-bg: #F4F7F9;
  --c-surface: #ffffff;
  --c-surface-2: #fafbfc;
  --c-accent: #8E44AD;         /* 品牌紫 */
  --c-accent-2: #7b3a99;
  --c-accent-soft: #f2e8f7;
  --c-red: #d83a3a;
  --c-green: #2f9e5d;
  --c-amber: #c78a1b;

  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei",
               "Helvetica Neue", Helvetica, "Segoe UI", Arial, sans-serif;
  --font-serif: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "SimSun", Georgia, serif;
  --font-mono: "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;

  --sidebar-w: 200px;
  --widget-w: 300px;
  --content-max: 820px;

  --radius-sm: 3px;
  --radius-md: 6px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--c-accent); }

button { font-family: inherit; cursor: pointer; border: none; background: none; }

img { display: block; max-width: 100%; }

/* ========== 主布局 ========== */
.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr var(--widget-w);
  min-height: 100vh;
  gap: 0;
}

.main {
  padding: 28px 36px 80px;
  min-width: 0;
  border-left: 1px solid var(--c-line);
  border-right: 1px solid var(--c-line);
  background: var(--c-bg);
}

.widget-col {
  padding: 28px 22px 80px;
  background: var(--c-bg);
}

/* ========== 侧边栏 ========== */
.sidebar {
  background: var(--c-ink);
  color: #fff;
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 22px 0 18px;
}

.sidebar .logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 22px 22px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.sidebar .logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  flex-shrink: 0;
  overflow: hidden;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.08), 0 4px 12px rgba(0,0,0,0.3);
}
.sidebar .logo-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.sidebar .logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.sidebar .logo-text .cn {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.sidebar .logo-text .en {
  font-size: 10px;
  color: var(--c-muted-2);
  letter-spacing: 1px;
  margin-top: 2px;
  text-transform: uppercase;
}

.sidebar nav {
  padding: 14px 0;
  flex: 1;
}

.sidebar .nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 22px;
  color: #c9cdd4;
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  border-left: 2px solid transparent;
  position: relative;
}
.sidebar .nav-item:hover {
  color: #fff;
  background: rgba(255,255,255,0.04);
}
.sidebar .nav-item.active {
  color: #fff;
  background: rgba(142,68,173,0.12);
  border-left-color: var(--c-accent);
}
.sidebar .nav-item .ico {
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #8a8f96;
}
.sidebar .nav-item.active .ico { color: var(--c-accent); }

.sidebar .nav-sub {
  padding: 4px 22px 10px 50px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.sidebar .nav-sub a {
  font-size: 12.5px;
  color: #8a8f96;
  padding: 3px 0;
}
.sidebar .nav-sub a:hover { color: #fff; }
.sidebar .nav-sub a.active { color: var(--c-accent); }

.sidebar .section-title {
  padding: 14px 22px 6px;
  font-size: 10px;
  color: #686d73;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 600;
}

.sidebar .user-chip {
  margin: 12px 14px 0;
  padding: 10px 12px;
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}
.sidebar .user-chip:hover { background: rgba(255,255,255,0.07); }
.sidebar .user-chip .avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: linear-gradient(135deg, #8E44AD 0%, #5a2a6f 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: #fff;
  font-weight: 600;
  flex-shrink: 0;
}
.sidebar .user-chip .uinfo { flex: 1; min-width: 0; }
.sidebar .user-chip .uname {
  font-size: 12.5px;
  color: #fff;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sidebar .user-chip .umeta {
  font-size: 10.5px;
  color: #8a8f96;
  margin-top: 2px;
}
.sidebar .user-chip .umeta .lv {
  color: var(--c-accent);
  font-weight: 600;
}

.sidebar .foot {
  padding: 12px 22px 0;
  font-size: 10px;
  color: #5a5e64;
  letter-spacing: 0.5px;
  border-top: 1px solid rgba(255,255,255,0.06);
  margin-top: 10px;
  padding-top: 12px;
}

/* ========== 顶部搜索/工具条 ========== */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
  gap: 18px;
}

.search {
  flex: 1;
  max-width: 440px;
  display: flex;
  align-items: center;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  padding: 0 12px;
  height: 34px;
}
.search input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-size: 13px;
  color: var(--c-text);
  font-family: inherit;
  min-width: 0;
}
.search input::placeholder { color: var(--c-muted); }
.search .ico { color: var(--c-muted); }
.search .kbd {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--c-muted);
  border: 1px solid var(--c-line);
  padding: 1px 5px;
  border-radius: 3px;
  background: var(--c-surface-2);
}

.topbar-tools {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--c-muted);
  font-size: 13px;
}
.topbar-tools .tool {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  position: relative;
  color: var(--c-muted);
  text-decoration: none;
}
.topbar-tools .tool .tool-dot {
  position: absolute;
  top: 4px;
  right: 6px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-accent);
  border: 1.5px solid #f7f7f4;
}
.topbar-tools .tool:hover { background: #fff; color: var(--c-ink); }
.topbar-tools .btn-primary {
  background: var(--c-accent);
  color: #fff;
  padding: 7px 14px;
  border-radius: var(--radius-md);
  font-size: 12.5px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 5px;
}
.topbar-tools .btn-primary:hover { background: var(--c-accent-2); color: #fff; }

/* === 顶部搜索浮层 === */
.search { position: relative; }
.search-panel {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  width: 520px;
  max-width: 65vw;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 38px rgba(0,0,0,0.12), 0 2px 6px rgba(0,0,0,0.04);
  z-index: 100;
  max-height: 480px;
  overflow-y: auto;
  display: none;
  font-size: 12.5px;
}
.search.open .search-panel { display: block; }
.sp-sec { padding: 12px 14px; border-bottom: 1px solid var(--c-line-2); }
.sp-sec:last-child { border-bottom: 0; }
.sp-h { display: flex; justify-content: space-between; align-items: center; font-size: 11px; color: var(--c-muted); letter-spacing: 0.5px; margin-bottom: 8px; text-transform: uppercase; }
.sp-clr { color: var(--c-accent); cursor: pointer; text-transform: none; letter-spacing: 0; font-size: 11px; }
.sp-clr:hover { text-decoration: underline; }
.sp-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.sp-chip { display: inline-flex; align-items: center; gap: 5px; padding: 4px 10px; background: #fafaf8; border: 1px solid var(--c-line); border-radius: 14px; cursor: pointer; font-size: 12px; color: var(--c-ink); }
.sp-chip:hover { background: var(--c-accent); color: #fff; border-color: var(--c-accent); }
.sp-chip i { font-style: normal; font-family: var(--font-mono); font-size: 10px; color: var(--c-muted); font-weight: 700; }
.sp-chip.hot i { color: var(--c-red); }
.sp-chip:hover i { color: rgba(255,255,255,0.7); }
.sp-quicks { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.sp-q { display: flex; gap: 10px; padding: 8px 10px; border-radius: 4px; align-items: center; text-decoration: none; color: var(--c-ink); }
.sp-q:hover { background: var(--c-accent-soft); }
.sp-q .i { font-size: 18px; }
.sp-q b { font-size: 12.5px; display: block; }
.sp-q div div { font-size: 10.5px; color: var(--c-muted); margin-top: 1px; }
.sp-row { display: flex; gap: 10px; padding: 7px 8px; border-radius: 4px; align-items: center; text-decoration: none; color: var(--c-ink); margin: 0 -4px; }
.sp-row:hover { background: var(--c-accent-soft); }
.sp-row .sp-ic { font-size: 16px; width: 22px; text-align: center; flex-shrink: 0; }
.sp-row .sp-tt { font-size: 12.5px; line-height: 1.4; color: var(--c-ink); }
.sp-row .sp-tt mark { background: #fff3a3; color: var(--c-ink); padding: 0 1px; border-radius: 2px; }
.sp-row .sp-mt { font-size: 11px; color: var(--c-muted); margin-top: 2px; }
.sp-empty { padding: 30px 14px; text-align: center; color: var(--c-muted); font-size: 12.5px; line-height: 1.7; }
.sp-empty span { font-size: 11px; }
.sp-foot { display: flex; justify-content: space-between; padding: 8px 14px; background: #fafaf8; font-size: 10.5px; color: var(--c-muted); font-family: var(--font-mono); border-top: 1px solid var(--c-line-2); }

/* 首页欢迎 Banner */
.home-hello { display:flex;align-items:center;gap:14px;padding:14px 18px;background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-md);margin-bottom:18px; }
.home-hello.new { background:linear-gradient(135deg,#f2e8f7,#fff);border-color:var(--c-accent); }
.home-hello.logged-out { border-style:dashed;background:#fafaf8; }
.home-hello .hh-avatar { width:44px;height:44px;border-radius:50%;background:var(--c-accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:17px;flex-shrink:0; }
.home-hello .hh-avatar.placeholder { background:var(--c-line);color:var(--c-muted); }
.home-hello .hh-text { flex:1;min-width:0; }
.home-hello .hh-line1 { font-size:14px;color:var(--c-ink);margin-bottom:2px; }
.home-hello .hh-line1 b { font-weight:600; }
.home-hello .hh-lv { color:var(--c-accent);font-weight:600;font-family:var(--font-mono);font-size:12px; }
.home-hello .hh-line2 { font-size:12px;color:var(--c-muted);line-height:1.6; }
.home-hello .hh-acts { display:flex;gap:8px;align-items:center;flex-shrink:0; }
.home-hello .hh-logout { font-size:11px;color:var(--c-muted);cursor:pointer;padding:0 4px; }
.home-hello .hh-logout:hover { color:var(--c-red); }

/* 未登录用户卡 */
.sidebar .user-chip.logged-out { border-style:dashed; }
.sidebar .user-chip.logged-out:hover { border-color: var(--c-accent); background: rgba(142,68,173,0.08); }

/* 登录拦截弹窗 */
#auth-modal { position:fixed;inset:0;z-index:9999;display:flex;align-items:center;justify-content:center;font-family:var(--font-sans); }
#auth-modal .am-backdrop { position:absolute;inset:0;background:rgba(20,20,30,0.55);backdrop-filter:blur(3px); }
#auth-modal .am-dialog { position:relative;background:#fff;border-radius:10px;width:380px;padding:32px 30px 24px;box-shadow:0 20px 60px rgba(0,0,0,0.25);text-align:center; }
#auth-modal .am-close { position:absolute;top:10px;right:14px;width:28px;height:28px;display:flex;align-items:center;justify-content:center;color:var(--c-muted);cursor:pointer;font-size:20px;border-radius:50%; }
#auth-modal .am-close:hover { background:var(--c-line-2);color:var(--c-ink); }
#auth-modal .am-ic { width:56px;height:56px;border-radius:50%;background:var(--c-accent-soft);color:var(--c-accent);display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-size:22px; }
#auth-modal h3 { margin:0 0 8px;font-size:18px;font-weight:600;color:var(--c-ink); }
#auth-modal p { margin:0 0 20px;font-size:13px;color:var(--c-muted);line-height:1.7; }
#auth-modal .am-acts { display:flex;gap:10px;justify-content:center;margin-bottom:12px; }
#auth-modal .am-acts .btn { flex:1;padding:10px 16px; }
#auth-modal .am-foot { font-size:11px;color:var(--c-muted);border-top:1px solid var(--c-line-2);padding-top:10px;margin-top:8px; }

.tab-bar {
  display: flex;
  align-items: center;
  gap: 22px;
  border-bottom: 1px solid var(--c-line);
  margin-bottom: 18px;
  padding-bottom: 0;
}
.tab-bar .tab {
  padding: 10px 0;
  font-size: 14px;
  color: var(--c-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  cursor: pointer;
  font-weight: 500;
}
.tab-bar .tab:hover { color: var(--c-ink); }
.tab-bar .tab.active {
  color: var(--c-ink);
  border-bottom-color: var(--c-accent);
  font-weight: 600;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  font-size: 11px;
  border-radius: 2px;
  background: var(--c-accent-soft);
  color: var(--c-accent-2);
  font-weight: 500;
}
.tag.gray {
  background: var(--c-line-2);
  color: var(--c-muted);
}
.tag.solid {
  background: var(--c-accent);
  color: #fff;
}
.tag.dot::before {
  content: '';
  width: 5px; height: 5px;
  border-radius: 50%;
  background: currentColor;
  margin-right: 4px;
}
.tag.red { background: #fdeaea; color: var(--c-red); }
.tag.green { background: #e6f5ec; color: var(--c-green); }
.tag.amber { background: #fdf3e0; color: var(--c-amber); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid var(--c-line);
  background: #fff;
  color: var(--c-ink);
}
.btn:hover { border-color: var(--c-ink); }
.btn.primary {
  background: var(--c-accent);
  color: #fff;
  border-color: var(--c-accent);
}
.btn.primary:hover { background: var(--c-accent-2); border-color: var(--c-accent-2); color: #fff; }
.btn.ghost { background: transparent; border-color: var(--c-line); }

/* ========== 右侧小部件 ========== */
.widget {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  margin-bottom: 14px;
}
.widget h4 {
  margin: 0 0 12px;
  font-size: 12px;
  color: var(--c-muted);
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.widget h4 .more {
  font-size: 11px;
  color: var(--c-muted);
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
}
.widget h4 .more:hover { color: var(--c-accent); }
.widget-row { transition: background .15s; }
.widget-row:hover { background: var(--c-accent-soft); }
.widget-row:last-child { border-bottom: none !important; }

/* ========== 图片占位 ========== */
.ph {
  background:
    repeating-linear-gradient(135deg,
      #e4e8ed 0, #e4e8ed 8px,
      #edf0f3 8px, #edf0f3 16px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.5px;
  position: relative;
  overflow: hidden;
}
.ph::before {
  content: attr(data-label);
  color: rgba(42, 42, 42, 0.42);
  padding: 2px 6px;
  background: rgba(255,255,255,0.6);
  border-radius: 2px;
}

/* ========== 信息流卡片（左文右图） ========== */
.feed { display: flex; flex-direction: column; }

.feed-card {
  display: grid;
  grid-template-columns: 1fr 180px;
  gap: 22px;
  padding: 18px 0;
  border-bottom: 1px solid var(--c-line);
  cursor: pointer;
}
.feed-card:hover .feed-title { color: var(--c-accent); }

.feed-card .feed-body { min-width: 0; display: flex; flex-direction: column; }
.feed-card .feed-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  color: var(--c-muted);
  margin-bottom: 6px;
}
.feed-card .feed-meta .cat {
  color: var(--c-accent);
  font-weight: 600;
}
.feed-card .feed-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--c-muted-2); }
.feed-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--c-ink);
  line-height: 1.4;
  margin: 0 0 6px;
  transition: color .15s;
}
.feed-excerpt {
  font-size: 13px;
  color: #5a5f66;
  line-height: 1.65;
  margin: 0 0 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.feed-foot {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 11.5px;
  color: var(--c-muted);
}
.feed-foot .fm { display: inline-flex; align-items: center; gap: 4px; }

.feed-card .feed-thumb {
  width: 180px;
  height: 120px;
  border-radius: var(--radius-md);
  overflow: hidden;
}

/* ========== hero 轮播 ========== */
.hero {
  display: grid;
  grid-template-columns: 2fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 10px;
  height: 320px;
  margin-bottom: 24px;
}
.hero .hero-main {
  grid-row: 1 / 3;
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  cursor: pointer;
}
.hero .hero-side {
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  cursor: pointer;
}
.hero .overlay {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 36px 20px 16px;
  background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.85) 100%);
  color: #fff;
}
.hero .overlay .tag {
  background: var(--c-accent);
  color: #fff;
  margin-bottom: 8px;
}
.hero .overlay h2 {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  line-height: 1.35;
}
.hero .hero-side .overlay h2 { font-size: 14px; font-weight: 600; }
.hero .overlay .sub {
  font-size: 12px;
  color: rgba(255,255,255,0.75);
  margin-top: 4px;
}

/* section title */
.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 26px 0 12px;
}
.section-heading h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-ink);
  display: flex;
  align-items: center;
  gap: 8px;
}
.section-heading h3::before {
  content: '';
  width: 3px;
  height: 14px;
  background: var(--c-accent);
  border-radius: 1px;
}
.section-heading .more {
  font-size: 12px;
  color: var(--c-muted);
}
.section-heading .more:hover { color: var(--c-accent); }

/* ========== Tweaks 面板 ========== */
.tweaks-panel {
  position: fixed;
  right: 18px;
  bottom: 18px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: 8px;
  box-shadow: 0 10px 28px rgba(0,0,0,0.12);
  padding: 14px 16px;
  z-index: 500;
  width: 260px;
  display: none;
  font-size: 12.5px;
}
.tweaks-panel.open { display: block; }
.tweaks-panel h5 {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--c-muted);
  text-transform: uppercase;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.tweaks-panel .field { margin-bottom: 10px; }
.tweaks-panel label {
  display: block;
  font-size: 11.5px;
  color: var(--c-muted);
  margin-bottom: 4px;
}
.tweaks-panel input[type="color"] {
  width: 100%;
  height: 28px;
  border: 1px solid var(--c-line);
  border-radius: 4px;
  padding: 2px;
}
.tweaks-panel input[type="range"] { width: 100%; }
.tweaks-panel .swatches {
  display: flex;
  gap: 6px;
}
.tweaks-panel .swatches .sw {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid #fff;
  box-shadow: 0 0 0 1px var(--c-line);
}
.tweaks-panel .swatches .sw.active { box-shadow: 0 0 0 2px var(--c-ink); }

/* 面包屑 */
.crumbs {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--c-muted);
  margin-bottom: 14px;
}
.crumbs .sep { color: var(--c-muted-2); }
.crumbs a:hover { color: var(--c-accent); }
.crumbs .cur { color: var(--c-ink); font-weight: 500; }

/* 滚动条（细） */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #d7dbe0; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #b3b8bf; }

/* 响应式：仅最小保护 */
@media (max-width: 1200px) {
  .app { grid-template-columns: var(--sidebar-w) 1fr; }
  .widget-col { display: none; }
}

::-webkit-scrollbar-thumb { background: #d7dbe0; border-radius: 4px; }

/* Hamburger 按钮（仅移动端显示） */
.nav-burger { display: none; }
.drawer-backdrop { display: none; }

/* ============================================
   移动端适配 (≤ 768px)
   - 侧边栏 → 底部 Tab 栏
   - 三栏 → 单栏
   - 大组件（Hero / Feed / 球馆地图）纵向堆叠
   ============================================ */
@media (max-width: 768px) {
  html, body { font-size: 14px; }

  .app {
    grid-template-columns: 1fr !important;
  }

  .main {
    padding: 14px 14px 30px;
    border-left: none;
    border-right: none;
  }

  .widget-col { display: none !important; }

  /* —— 侧边栏 → 左侧抽屉 (默认隐藏，hamburger 触发) —— */
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    height: 100vh;
    width: 260px;
    transform: translateX(-100%);
    transition: transform .26s ease;
    z-index: 300;
    box-shadow: 4px 0 24px rgba(0,0,0,0.18);
    overflow-y: auto;
  }
  body.drawer-open .sidebar { transform: translateX(0); }

  /* 抽屉背景遮罩 */
  .drawer-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(20,22,28,0.5);
    backdrop-filter: blur(2px);
    z-index: 250;
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease;
  }
  body.drawer-open .drawer-backdrop {
    opacity: 1;
    pointer-events: auto;
  }

  /* Hamburger 按钮（注入到 topbar 左侧） */
  .nav-burger {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    margin-right: 4px;
    border-radius: 8px;
    background: #fff;
    border: 1px solid var(--c-line);
    color: var(--c-ink);
    cursor: pointer;
    flex-shrink: 0;
  }
  .nav-burger:active { background: var(--c-line-2); }

  /* —— 顶部搜索 / 工具栏(sticky 浮动,不随页面滚走) —— */
  .topbar {
    position: sticky;
    top: 0;
    z-index: 80;
    gap: 10px;
    flex-wrap: wrap;
    /* 抵消 .main 的左右 padding,让 topbar 拉满到屏幕两边 */
    margin: -14px -14px 14px;
    padding: 10px 14px;
    background: rgba(244, 247, 249, 0.92);
    backdrop-filter: saturate(180%) blur(10px);
    -webkit-backdrop-filter: saturate(180%) blur(10px);
    border-bottom: 1px solid var(--c-line);
  }
  /* 抽屉打开时让 topbar 降一档,避免遮 sidebar */
  body.drawer-open .topbar { z-index: 60; }
  .search {
    flex: 1 1 100%;
    max-width: none;
    order: 2;
  }
  .topbar-tools {
    order: 1;
    flex: 1 1 auto;
    gap: 4px;
    justify-content: flex-end;
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
    min-width: 0;
  }
  .topbar-tools::-webkit-scrollbar { display: none; }
  .topbar-tools .tool {
    padding: 6px 8px;
    font-size: 12px;
    flex-shrink: 0;
  }
  .topbar-tools .btn-primary {
    padding: 6px 10px;
    font-size: 12px;
  }
  .search-panel {
    width: calc(100vw - 28px) !important;
    max-width: none !important;
    left: -7px;
    right: -7px;
  }

  /* —— Hero 轮播堆叠 —— */
  .hero {
    grid-template-columns: 1fr;
    grid-template-rows: 200px 120px 120px;
    height: auto;
    gap: 8px;
    margin-bottom: 18px;
  }
  .hero .hero-main { grid-row: auto; }
  .hero .overlay { padding: 26px 14px 12px; }
  .hero .overlay h2 { font-size: 15px; line-height: 1.4; }
  .hero .hero-side .overlay h2 { font-size: 13px; }
  .hero .overlay .sub { font-size: 11px; }

  /* —— Tab Bar 横向滑动 —— */
  .tab-bar {
    overflow-x: auto;
    gap: 18px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    flex-wrap: nowrap !important;
    margin-bottom: 14px;
  }
  .tab-bar::-webkit-scrollbar { display: none; }
  .tab-bar .tab {
    font-size: 13.5px;
    padding: 10px 0;
    flex-shrink: 0;
  }
  #filter-trigger { margin-left: 12px !important; }

  /* —— 信息流卡片 —— */
  .feed-card {
    grid-template-columns: 1fr 110px;
    gap: 12px;
    padding: 14px 0;
  }
  .feed-card .feed-thumb {
    width: 110px;
    height: 84px;
  }
  .feed-title {
    font-size: 14.5px;
    line-height: 1.4;
  }
  .feed-excerpt {
    font-size: 12.5px;
    -webkit-line-clamp: 2;
    margin-bottom: 8px;
  }
  .feed-card .feed-meta { font-size: 11px; }
  .feed-foot { font-size: 11px; gap: 10px; }

  /* —— 首页欢迎 Banner —— */
  .home-hello {
    flex-wrap: wrap;
    padding: 12px;
    gap: 10px;
  }
  .home-hello .hh-text { flex: 1 1 calc(100% - 56px); }
  .home-hello .hh-acts {
    flex-wrap: wrap;
    width: 100%;
    gap: 6px;
  }
  .home-hello .hh-acts .btn {
    flex: 1;
    justify-content: center;
    font-size: 12px;
    padding: 7px 10px;
  }
  .home-hello .hh-logout { padding: 4px 8px; }
  .home-hello .hh-line1 { font-size: 13px; }
  .home-hello .hh-line2 { font-size: 11.5px; }

  /* —— 首页筛选面板 —— */
  #filter-panel { padding: 14px !important; }
  #filter-panel > div[style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
    gap: 8px 0 !important;
  }
  #filter-panel > div[style*="grid-template-columns"] > div:first-child,
  #filter-panel > div[style*="grid-template-columns"] > div:nth-child(odd) {
    padding-top: 8px !important;
  }

  /* —— 面包屑 / 页面头 —— */
  .crumbs { margin-bottom: 12px; font-size: 11.5px; }
  .section-heading h3 { font-size: 14px; }
  .section-heading { margin: 22px 0 10px; }

  /* —— 球馆页 · 地图与列表堆叠 —— */
  .venue-split {
    grid-template-columns: 1fr !important;
    gap: 14px;
  }
  .map-panel {
    position: relative !important;
    top: auto !important;
    height: 260px !important;
    order: -1; /* 地图放到列表上方 */
  }
  .venue-card {
    grid-template-columns: 100px 1fr;
    gap: 12px;
    padding: 12px 0;
  }
  .venue-card .thumb {
    width: 100px;
    height: 80px;
  }
  .vname { font-size: 14.5px; }
  .vmeta { font-size: 11px; gap: 6px; }
  .vprops { gap: 4px; margin-bottom: 6px; }
  .vprice { font-size: 11px; flex-wrap: wrap; gap: 4px; }
  .vprice .p { font-size: 12.5px; }
  .city-chip { font-size: 11.5px; padding: 3px 9px; }

  /* 球馆页二级筛选行 → 横向滑动 */
  .main > div[style*="border-top:1px dashed"][style*="border-bottom:1px dashed"] {
    overflow-x: auto;
    flex-wrap: nowrap !important;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    font-size: 11.5px !important;
  }

  /* —— 探索页 · 编辑精选两列 → 单列 —— */
  .main > div[style*="grid-template-columns:1fr 1fr"] {
    grid-template-columns: 1fr !important;
  }

  /* —— 页面头部 H1 行 —— */
  .main > div[style*="align-items:flex-end"][style*="justify-content:space-between"] {
    flex-wrap: wrap;
    gap: 10px;
  }
  .main > div[style*="align-items:flex-end"] h1 { font-size: 19px !important; }

  /* —— 弹窗 —— */
  #auth-modal .am-dialog {
    width: calc(100vw - 32px) !important;
    padding: 24px 20px 18px !important;
  }

  /* Tweaks 面板挪开避免和底栏重叠 */
  .tweaks-panel {
    bottom: 70px;
    right: 12px;
    width: calc(100vw - 24px);
    max-width: 280px;
  }

  /* —— 各子页双栏 → 单栏 —— */
  .pa-wrap, .pv-wrap { grid-template-columns: 1fr !important; gap: 14px !important; max-width: 100% !important; }
  .pa-main, .pv-main { padding: 18px 16px !important; }

  /* publish 类型选择 / 草稿 / 引导 */
  .type-grid { grid-template-columns: 1fr !important; gap: 10px !important; }
  .guide-grid { grid-template-columns: 1fr !important; }
  .draft-row { grid-template-columns: 56px 1fr auto !important; gap: 10px !important; font-size: 12px !important; }
  .draft-row > *:nth-child(4) { display: none !important; }

  /* publish-article / venue 表单 */
  .meta-row, .row-2, .cf-grid, .id-pick,
  .extra-fields .row,
  .reviewer { grid-template-columns: 1fr !important; gap: 10px !important; }
  .row-3 { grid-template-columns: 1fr 1fr !important; }
  .cover-pick { grid-template-columns: 1fr !important; }
  .cover-pick .up { width: 100% !important; }

  /* publish-venue 球场表 → 横向滚动 */
  .courts-table { overflow-x: auto; }
  .courts-table .ch, .courts-table .cr { min-width: 540px; }

  /* search 结果卡 */
  .r-art { grid-template-columns: 110px 1fr !important; gap: 12px !important; }
  .r-art .img { width: 110px !important; height: 78px !important; }
  .r-art > *:nth-child(3) { display: none !important; }
  .r-ven, .r-tour { grid-template-columns: 80px 1fr !important; gap: 12px !important; }
  .r-ven .map { width: 80px !important; height: 64px !important; }
  .r-ven > *:nth-child(3),
  .r-tour > *:nth-child(3) { display: none !important; }
  .r-gear-grid { grid-template-columns: 1fr !important; }
  .r-gear { grid-template-columns: 70px 1fr !important; }
  .r-gear .img { width: 70px !important; height: 70px !important; }
  /* search 主结果 + 侧栏 */
  .main > div[style*="grid-template-columns:1fr 280px"] {
    grid-template-columns: 1fr !important;
  }

  /* notifications */
  .n-item { grid-template-columns: 32px 1fr !important; gap: 10px !important; padding: 12px 8px !important; }
  .n-item > *:nth-child(3) {
    grid-column: 1 / -1;
    margin-top: 4px;
    text-align: right;
  }
  .widget div[style*="grid-template-columns:1fr 1fr"] {
    /* 通知右栏统计仍然 1fr 1fr 即可 */
  }

  /* tournament-detail Hero */
  .tour-hero { padding: 18px 16px !important; grid-template-columns: 1fr !important; gap: 14px !important; }
  .tour-hero h1 { font-size: 19px !important; }
  .tour-hero .h-card { grid-template-columns: 1fr 1fr !important; padding: 10px !important; }
  /* 奖金/规则双栏 */
  .main > div[style*="grid-template-columns:1fr 1fr"][style*="margin-top:20px"] {
    grid-template-columns: 1fr !important;
  }

  /* —— login / register 左右分栏 → 隐装饰栏,单列表单 —— */
  .auth-shell {
    grid-template-columns: 1fr !important;
    min-height: 100vh;
  }
  .auth-visual {
    display: none !important;
  }
  .auth-panel {
    padding: 56px 20px 56px !important;
    min-height: 100vh;
    justify-content: flex-start !important;
  }
  .auth-panel-inner {
    max-width: 100% !important;
  }
  /* 右上角"直接登录"/左下角版权 — PC 是 absolute,mobile 退回流式排列 */
  .auth-top {
    position: static !important;
    text-align: right !important;
    font-size: 12.5px !important;
    margin-bottom: 18px !important;
    padding: 0 !important;
  }
  .auth-bottom {
    position: static !important;
    text-align: center !important;
    font-size: 11px !important;
    margin-top: 28px !important;
    padding: 0 !important;
  }
  .auth-title { font-size: 22px !important; }
  .visual-stats { grid-template-columns: 1fr !important; gap: 10px; }

  /* register 页面 */
  .id-card { padding: 12px !important; }

  /* publish hero (publish.html 黑色 hero) */
  .pub-hero { padding: 24px 18px !important; }
  .pub-hero h1 { font-size: 22px !important; }

  /* venue-detail 页头部图册等通用 */
  .main h1 { font-size: 19px; }
}

/* 更窄屏 ≤ 380px 微调 */
@media (max-width: 380px) {
  .feed-card { grid-template-columns: 1fr 92px; gap: 10px; }
  .feed-card .feed-thumb { width: 92px; height: 70px; }
  .venue-card { grid-template-columns: 84px 1fr; gap: 10px; }
  .venue-card .thumb { width: 84px; height: 68px; }
  .hero { grid-template-rows: 180px 110px 110px; }
  .row-3 { grid-template-columns: 1fr !important; }
}

/* ─── 社交平台引用卡片(小红书/视频号/抖音/B 站/微博)─── */
/* 用法:在文章正文里直接粘贴 HTML 片段,见 docs/SOCIAL-CARD.md */
.sq-social-card {
  display: flex;
  gap: 14px;
  padding: 12px;
  margin: 22px 0;
  border: 1px solid var(--c-line);
  border-radius: 8px;
  background: #fff;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, transform 0.1s;
}
.sq-social-card:hover {
  border-color: var(--c-accent);
  transform: translateY(-1px);
}
.sq-social-cover {
  flex: 0 0 132px;
  height: 132px;
  position: relative;
  border-radius: 6px;
  overflow: hidden;
  background: var(--c-surface-2);
}
.sq-social-cover img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.sq-social-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  font-size: 11px;
  font-weight: 500;
  padding: 3px 9px;
  border-radius: 11px;
  color: #fff;
  letter-spacing: 0.3px;
  backdrop-filter: blur(4px);
}
.sq-badge-xhs { background: rgba(255, 36, 66, 0.92); }              /* 小红书 */
.sq-badge-sph { background: rgba(7, 193, 96, 0.92); }               /* 视频号 */
.sq-badge-dy  { background: rgba(0, 0, 0, 0.78); }                  /* 抖音 */
.sq-badge-bili { background: rgba(251, 114, 153, 0.92); }           /* B 站 */
.sq-badge-wb  { background: rgba(230, 22, 45, 0.92); }              /* 微博 */
.sq-badge-wx  { background: rgba(7, 193, 96, 0.92); }               /* 公众号 */
.sq-social-body {
  flex: 1; min-width: 0;
  display: flex; flex-direction: column;
  justify-content: space-between;
  padding: 2px 0;
}
.sq-social-title {
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--c-ink);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.sq-social-summary {
  font-size: 12.5px;
  color: var(--c-ink-2);
  margin-top: 4px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.sq-social-meta {
  font-size: 11.5px;
  color: var(--c-muted);
  margin-top: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.sq-social-meta .dot { color: var(--c-line); }
.sq-social-cta {
  font-size: 12.5px;
  color: var(--c-accent);
  margin-top: 8px;
  font-weight: 500;
}
@media (max-width: 480px) {
  .sq-social-cover { flex: 0 0 100px; height: 100px; }
  .sq-social-title { font-size: 13.5px; }
  .sq-social-summary { display: none; }
}