/* ============================================
   安卡信息发布平台 · 主样式系统
   Design Tokens + 通用组件
   ============================================ */

:root {
  /* 品牌色 */
  --color-primary: #1B3A5C;
  --color-primary-deep: #0E2540;
  --color-primary-soft: #2C4F76;
  --color-accent: #C0392B;
  --color-gold: #A88B5C;
  --color-gold-light: #C8A876;
  --color-cream: #FAF7F2;
  --color-paper: #F4EFE3;
  --color-line: #E5DED0;
  --color-ink: #1A1A1A;
  --color-text: #2A2A2A;
  --color-muted: #6B6B6B;
  --color-subtle: #9A9A9A;

  /* 字体 */
  --font-zh: 'Source Han Serif SC', 'Noto Serif SC', 'Songti SC', 'STSong', 'SimSun', serif;
  --font-en: 'Cormorant Garamond', 'Times New Roman', Georgia, serif;
  --font-ui: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;

  /* 间距 */
  --space-1s: 8px; --space-2s: 16px; --space-3s: 24px;
  --space-4s: 32px; --space-5s: 48px; --space-6s: 64px; --space-7s: 96px;

  --radius-sm: 2px; --radius-md: 4px; --radius-lg: 8px;
  --shadow-soft: 0 4px 20px rgba(27,58,92,0.08);
  --shadow-deep: 0 12px 40px rgba(27,58,92,0.15);
  --container: 1280px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-zh);
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-cream);
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--color-primary); }
img, svg { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: 15px; }

h1, h2, h3, h4, h5 { font-weight: 600; color: var(--color-ink); line-height: 1.4; }
h1 { font-size: clamp(32px, 4.5vw, 54px); letter-spacing: 4px; }
h2 { font-size: clamp(26px, 3.2vw, 38px); letter-spacing: 2px; }
h3 { font-size: clamp(20px, 2.2vw, 26px); letter-spacing: 1px; }

.eyebrow {
  font-family: var(--font-en);
  font-size: 14px; letter-spacing: 6px; text-transform: uppercase;
  color: var(--color-gold);
  display: inline-flex; align-items: center; gap: 12px;
}
.eyebrow::before { content: ''; width: 32px; height: 1px; background: var(--color-gold); }

.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--space-4s); }

/* ---- 按钮 ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 12px 28px;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  font-size: 15px; letter-spacing: 2px;
  background: transparent;
  transition: all .3s ease; position: relative; overflow: hidden;
  cursor: pointer;
}
.btn::after {
  content: ''; position: absolute; inset: 0;
  background: var(--color-primary);
  transform: translateX(-101%); transition: transform .35s ease; z-index: -1;
}
.btn:hover { color: var(--color-cream); }
.btn:hover::after { transform: translateX(0); }
.btn-primary { background: var(--color-primary); color: var(--color-cream); }
.btn-primary::after { background: var(--color-primary-deep); }
.btn-accent { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }
.btn-accent::after { background: #A03024; }
.btn-sm { padding: 8px 18px; font-size: 13px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ---- 顶部导航 ---- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(250,247,242,0.92);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: all .35s ease;
}
.site-header.scrolled { background: rgba(250,247,242,0.98); border-bottom-color: var(--color-line); box-shadow: var(--shadow-soft); }
.header-inner {
  max-width: var(--container); margin: 0 auto; padding: 0 var(--space-4s);
  height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand img { width: 42px; height: 42px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text .name { font-size: 17px; font-weight: 600; color: var(--color-primary); letter-spacing: 3px; }
.brand-text .sub { font-family: var(--font-en); font-size: 10px; letter-spacing: 4px; color: var(--color-muted); text-transform: uppercase; }

.nav-list { display: flex; gap: 28px; }
.nav-list a {
  font-size: 15px; letter-spacing: 2px; color: var(--color-text);
  position: relative; padding: 6px 0;
}
.nav-list a::after {
  content: ''; position: absolute; bottom: 0; left: 50%;
  width: 0; height: 2px; background: var(--color-accent); transition: all .3s ease;
}
.nav-list a:hover::after, .nav-list a.active::after { left: 0; width: 100%; }
.nav-list a.active { color: var(--color-primary); }

/* 用户区 */
.user-area { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.nav-auth-btn {
  padding: 8px 18px; font-size: 14px; letter-spacing: 2px;
  border: 1px solid var(--color-primary); color: var(--color-primary); transition: all .25s ease;
}
.nav-auth-btn:hover { background: var(--color-primary); color: var(--color-cream); }
.nav-auth-btn.primary { background: var(--color-primary); color: var(--color-cream); }
.nav-auth-btn.primary:hover { background: var(--color-accent); border-color: var(--color-accent); }

.user-menu { position: relative; }
.user-trigger {
  display: flex; align-items: center; gap: 8px; padding: 6px 12px;
  border: 1px solid var(--color-line); background: #fff; border-radius: 24px;
  transition: all .25s ease;
}
.user-trigger:hover { border-color: var(--color-primary); }
.user-avatar {
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--color-primary); color: var(--color-cream);
  display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 600;
}
.user-name { font-size: 14px; color: var(--color-primary); letter-spacing: 1px; }
.user-caret { font-size: 10px; color: var(--color-muted); }
.user-dropdown {
  position: absolute; top: calc(100% + 8px); right: 0; min-width: 140px;
  background: #fff; border: 1px solid var(--color-line); box-shadow: var(--shadow-deep);
  display: none; z-index: 10;
}
.user-dropdown.open { display: block; }
.user-dropdown a {
  display: block; padding: 12px 20px; font-size: 14px; color: var(--color-text);
  border-bottom: 1px solid var(--color-line); transition: all .2s ease;
}
.user-dropdown a:last-child { border-bottom: none; }
.user-dropdown a:hover { background: var(--color-paper); color: var(--color-primary); padding-left: 24px; }

.menu-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.menu-toggle span { display: block; width: 24px; height: 2px; background: var(--color-primary); transition: all .3s ease; }

/* ---- 页脚 ---- */
.site-footer {
  background: var(--color-primary-deep); color: rgba(250,247,242,0.85);
  padding: var(--space-6s) 0 var(--space-3s); margin-top: var(--space-7s);
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: var(--space-5s); margin-bottom: var(--space-5s);
}
.footer-grid h5 { color: var(--color-cream); font-size: 16px; margin-bottom: 20px; letter-spacing: 3px; }
.footer-grid p, .footer-grid li { font-size: 14px; color: rgba(250,247,242,0.7); margin-bottom: 8px; line-height: 1.9; }
.footer-grid a:hover { color: var(--color-gold-light); }
.footer-brand { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
.footer-brand img { width: 46px; height: 46px; }
.footer-brand .name { color: var(--color-cream); font-size: 20px; letter-spacing: 4px; font-weight: 600; }
.footer-bottom {
  border-top: 1px solid rgba(250,247,242,0.1); padding-top: var(--space-3s);
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px;
  font-size: 13px; color: rgba(250,247,242,0.5);
}
.footer-bottom a { color: rgba(250,247,242,0.5); }
.footer-bottom a:hover { color: var(--color-gold-light); }

/* ---- 信息卡片 ---- */
.info-card {
  display: block; background: #fff; border: 1px solid var(--color-line);
  padding: var(--space-3s); transition: all .3s ease;
}
.info-card:hover { border-color: var(--color-primary); transform: translateY(-4px); box-shadow: var(--shadow-soft); }
.ic-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.ic-category {
  font-size: 13px; letter-spacing: 2px; color: var(--color-gold);
  display: inline-flex; align-items: center; gap: 6px;
}
.ic-status {
  font-size: 12px; letter-spacing: 1px; padding: 3px 10px; border-radius: 12px;
}
.ic-status.active { background: #E8F4EB; color: #1E7A3C; }
.ic-status.done { background: var(--color-paper); color: var(--color-muted); }
.ic-title { font-size: 18px; color: var(--color-primary); margin-bottom: 10px; letter-spacing: 1px; line-height: 1.5; }
.ic-desc {
  font-size: 14px; color: var(--color-muted); line-height: 1.8; margin-bottom: 14px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.ic-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.ic-tags span {
  font-size: 12px; color: var(--color-primary); background: var(--color-paper);
  padding: 3px 10px; letter-spacing: 1px;
}
.ic-bottom { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid var(--color-line); padding-top: 14px; flex-wrap: wrap; gap: 8px; }
.ic-company { font-size: 13px; color: var(--color-text); letter-spacing: 1px; }
.ic-meta { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--color-subtle); }
.ic-budget { color: var(--color-accent); font-weight: 600; font-size: 14px; }
.ic-dot { color: var(--color-line); }

/* ---- 空状态 ---- */
.empty-state {
  text-align: center; padding: var(--space-6s) var(--space-3s);
  background: #fff; border: 1px dashed var(--color-line);
}
.empty-icon { font-size: 48px; color: var(--color-gold-light); margin-bottom: 16px; }
.empty-state p { color: var(--color-muted); font-size: 16px; letter-spacing: 1px; }

/* ---- Toast ---- */
.anka-toast {
  position: fixed; top: 90px; left: 50%; transform: translate(-50%, -20px);
  background: var(--color-ink); color: #fff; padding: 14px 28px;
  font-size: 14px; letter-spacing: 1px; border-radius: var(--radius-md);
  opacity: 0; pointer-events: none; transition: all .3s ease; z-index: 999;
  box-shadow: var(--shadow-deep);
}
.anka-toast.show { opacity: 1; transform: translate(-50%, 0); }
.anka-toast.success { background: #1E7A3C; }
.anka-toast.error { background: var(--color-accent); }

/* ---- 入场动画 ---- */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ---- 工具 ---- */
.text-center { text-align: center; }
.mt-1 { margin-top: var(--space-1s); }
.mt-2 { margin-top: var(--space-2s); }
.mt-3 { margin-top: var(--space-3s); }
.mt-4 { margin-top: var(--space-4s); }
.mt-5 { margin-top: var(--space-5s); }
.mb-2 { margin-bottom: var(--space-2s); }
.mb-3 { margin-bottom: var(--space-3s); }
.mb-4 { margin-bottom: var(--space-4s); }
.muted { color: var(--color-muted); }
.gold { color: var(--color-gold); }
.accent { color: var(--color-accent); }

/* ---- 响应式 ---- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-4s); }
}
@media (max-width: 900px) {
  .nav-list {
    display: none; position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; background: var(--color-cream);
    padding: var(--space-3s); gap: var(--space-2s);
    border-bottom: 1px solid var(--color-line);
  }
  .nav-list.open { display: flex; }
  .menu-toggle { display: flex; }
  .user-area .nav-auth-btn { display: none; }
}
@media (max-width: 768px) {
  :root { --space-7s: 64px; --space-6s: 48px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { justify-content: center; text-align: center; }
}