/* ============================================
   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; }
}