/* ============================================
   林斋参衡 · 企业官网样式
   简约大气 · 水墨风
   ============================================ */
:root {
  --ink: #1c1c1c;
  --ink-soft: #4a4a4a;
  --ink-light: #8a8a8a;
  --gold: #a8874f;
  --gold-dark: #8a6c3a;
  --paper: #faf8f4;
  --paper-deep: #f2eee6;
  --white: #ffffff;
  --line: #e5e0d5;
  --shadow: 0 12px 40px rgba(28, 28, 28, 0.08);
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(250, 248, 244, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.3s;
}
.site-header.scrolled { box-shadow: 0 4px 20px rgba(0,0,0,0.06); }
.header-inner {
  max-width: 1160px; margin: 0 auto; padding: 0 24px;
  height: 72px; display: flex; align-items: center; justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-seal {
  width: 42px; height: 42px; border-radius: 6px;
  background: var(--ink); color: var(--paper);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--serif); font-size: 20px; font-weight: 700;
  letter-spacing: 1px;
}
.brand-name { font-family: var(--serif); font-size: 22px; font-weight: 700; letter-spacing: 6px; }
.brand-sub { font-size: 10px; color: var(--ink-light); letter-spacing: 3px; text-transform: uppercase; }
.main-nav { display: flex; align-items: center; gap: 34px; }
.main-nav a.nav-link {
  font-size: 15px; color: var(--ink-soft); position: relative; padding: 6px 0;
  transition: color 0.2s;
}
.main-nav a.nav-link::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: 0;
  background: var(--gold); transition: width 0.25s;
}
.main-nav a.nav-link:hover, .main-nav a.nav-link.active { color: var(--ink); }
.main-nav a.nav-link.active::after, .main-nav a.nav-link:hover::after { width: 100%; }
.nav-actions { display: flex; align-items: center; gap: 14px; }
.user-chip { display: none; align-items: center; gap: 10px; }
.user-chip.show { display: flex; }
.user-avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--gold); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 600;
}
.user-name { font-size: 14px; color: var(--ink); max-width: 90px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.logout-link { font-size: 13px; color: var(--ink-light); cursor: pointer; }
.logout-link:hover { color: var(--ink); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 32px; font-size: 15px; border-radius: 2px;
  border: 1px solid var(--ink); cursor: pointer; transition: all 0.25s;
  font-family: var(--sans); letter-spacing: 2px;
}
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--gold-dark); border-color: var(--gold-dark); }
.btn-outline { background: transparent; color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: var(--paper); }
.btn-gold { background: var(--gold); border-color: var(--gold); color: #fff; }
.btn-gold:hover { background: var(--gold-dark); border-color: var(--gold-dark); }
.btn-sm { padding: 8px 20px; font-size: 13px; }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 92vh; display: flex; align-items: center;
  overflow: hidden; margin-top: 72px;
}
.hero-bg {
  position: absolute; inset: 0;
  background: url("../img/hero.webp") center/cover no-repeat;
  animation: heroZoom 18s ease-in-out infinite alternate;
}
@keyframes heroZoom { from { transform: scale(1); } to { transform: scale(1.08); } }
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(105deg, rgba(250,248,244,0.94) 0%, rgba(250,248,244,0.72) 42%, rgba(250,248,244,0.12) 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 620px; padding: 60px 24px 60px; margin: 0 auto; width: 100%; }
.hero-tag {
  display: inline-block; font-size: 13px; letter-spacing: 6px; color: var(--gold-dark);
  border: 1px solid var(--gold); padding: 6px 18px; margin-bottom: 28px;
}
.hero h1 {
  font-family: var(--serif); font-size: 56px; line-height: 1.25;
  letter-spacing: 4px; margin-bottom: 22px; font-weight: 700;
}
.hero h1 .accent { color: var(--gold-dark); }
.hero p.lead { font-size: 18px; color: var(--ink-soft); margin-bottom: 40px; max-width: 480px; }
.hero-actions { display: flex; gap: 18px; flex-wrap: wrap; }
.hero-stats {
  display: flex; gap: 48px; margin-top: 64px; padding-top: 32px;
  border-top: 1px solid var(--line);
}
.hero-stats .stat b { font-family: var(--serif); font-size: 30px; color: var(--ink); display: block; }
.hero-stats .stat span { font-size: 13px; color: var(--ink-light); letter-spacing: 2px; }

/* ---------- 区块通用 ---------- */
.section { padding: 100px 0; }
.section.alt { background: var(--white); }
.section-head { text-align: center; margin-bottom: 64px; }
.section-head .kicker {
  font-size: 13px; letter-spacing: 6px; color: var(--gold-dark); margin-bottom: 14px;
}
.section-head h2 {
  font-family: var(--serif); font-size: 36px; letter-spacing: 3px; margin-bottom: 16px;
}
.section-head .desc { color: var(--ink-soft); max-width: 560px; margin: 0 auto; }
.divider {
  width: 48px; height: 2px; background: var(--gold); margin: 18px auto 0;
}

/* ---------- 卡片 ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.card {
  background: var(--white); border: 1px solid var(--line); border-radius: 4px;
  overflow: hidden; transition: transform 0.3s, box-shadow 0.3s;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.card-img { height: 220px; overflow: hidden; }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.card:hover .card-img img { transform: scale(1.05); }
.card-body { padding: 30px 28px 34px; }
.card-body h3 { font-family: var(--serif); font-size: 21px; margin-bottom: 12px; letter-spacing: 2px; }
.card-body p { font-size: 14.5px; color: var(--ink-soft); margin-bottom: 18px; }
.card-link { font-size: 14px; color: var(--gold-dark); letter-spacing: 2px; }
.card-link:hover { color: var(--ink); }
.feature-icon {
  width: 52px; height: 52px; border-radius: 50%;
  background: var(--paper-deep); color: var(--gold-dark);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; margin-bottom: 20px;
}

/* ---------- 关于页 ---------- */
.about-visual { position: relative; }
.about-visual img { border-radius: 4px; box-shadow: var(--shadow); }
.about-visual .frame {
  position: absolute; top: -18px; left: -18px; right: 18px; bottom: 18px;
  border: 1px solid var(--gold); border-radius: 4px; z-index: -1;
}
.about-text h2 { font-family: var(--serif); font-size: 34px; letter-spacing: 3px; margin-bottom: 8px; }
.about-text .en { font-size: 12px; letter-spacing: 5px; color: var(--ink-light); text-transform: uppercase; margin-bottom: 24px; }
.about-text p { color: var(--ink-soft); margin-bottom: 18px; }
.value-list { margin-top: 30px; display: grid; gap: 18px; }
.value-list li { display: flex; gap: 14px; align-items: flex-start; }
.value-list .dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--gold);
  margin-top: 11px; flex-shrink: 0;
}
.value-list b { display: block; font-size: 15.5px; }
.value-list span { font-size: 14px; color: var(--ink-soft); }

/* 团队 */
.team-card { text-align: center; padding: 36px 24px; }
.team-card .avatar {
  width: 84px; height: 84px; border-radius: 50%; margin: 0 auto 18px;
  background: var(--paper-deep); color: var(--gold-dark);
  font-family: var(--serif); font-size: 30px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--line);
}
.team-card h3 { font-family: var(--serif); font-size: 19px; letter-spacing: 2px; }
.team-card .role { font-size: 13px; color: var(--gold-dark); margin: 6px 0 12px; letter-spacing: 2px; }
.team-card p { font-size: 13.5px; color: var(--ink-soft); }

/* ---------- 服务页 ---------- */
.svc-hero {
  margin-top: 72px; padding: 90px 0; text-align: center;
  background: var(--ink); color: var(--paper);
  background: linear-gradient(rgba(20,20,20,0.55), rgba(20,20,20,0.55)),
    url("../img/svc-bazi.webp") center/cover no-repeat;
}
.svc-hero h1 { font-family: var(--serif); font-size: 42px; letter-spacing: 5px; margin-bottom: 14px; }
.svc-hero p { color: rgba(250,248,244,0.8); }
.svc-block { display: grid; grid-template-columns: 460px 1fr; gap: 56px; align-items: center; padding: 70px 0; }
.svc-block + .svc-block { border-top: 1px solid var(--line); }
.svc-block img { border-radius: 4px; box-shadow: var(--shadow); width: 100%; height: 320px; object-fit: cover; }
.svc-block.reverse { direction: rtl; }
.svc-block.reverse > * { direction: ltr; }
.svc-block .num {
  font-family: var(--serif); font-size: 15px; color: var(--gold-dark); letter-spacing: 4px;
}
.svc-block h2 { font-family: var(--serif); font-size: 28px; letter-spacing: 3px; margin: 10px 0 16px; }
.svc-block p { color: var(--ink-soft); margin-bottom: 20px; }
.svc-block ul.points { display: grid; gap: 10px; margin-bottom: 26px; }
.svc-block ul.points li { font-size: 14.5px; color: var(--ink-soft); display: flex; gap: 10px; }
.svc-block ul.points li::before { content: "·"; color: var(--gold); font-weight: 700; }

/* ---------- 联系页 ---------- */
.contact-wrap { display: grid; grid-template-columns: 1fr 1.2fr; gap: 60px; align-items: start; }
.contact-info h2 { font-family: var(--serif); font-size: 30px; letter-spacing: 3px; margin-bottom: 20px; }
.contact-info > p { color: var(--ink-soft); margin-bottom: 34px; }
.info-item { display: flex; gap: 16px; margin-bottom: 24px; }
.info-item .icon {
  width: 44px; height: 44px; border-radius: 50%; flex-shrink: 0;
  background: var(--paper-deep); color: var(--gold-dark);
  display: flex; align-items: center; justify-content: center; font-size: 19px;
}
.info-item b { display: block; font-size: 15px; margin-bottom: 2px; }
.info-item span { font-size: 14px; color: var(--ink-soft); }
.contact-form-card {
  background: var(--white); border: 1px solid var(--line); border-radius: 4px;
  padding: 42px; box-shadow: var(--shadow);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 14px; margin-bottom: 8px; color: var(--ink); }
.form-group label .req { color: #b23a3a; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 12px 14px; font-size: 14.5px;
  border: 1px solid var(--line); border-radius: 2px; background: var(--paper);
  font-family: var(--sans); color: var(--ink); transition: border-color 0.2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--gold);
}
.form-group textarea { min-height: 130px; resize: vertical; }
.form-hint { font-size: 12.5px; color: var(--ink-light); margin-top: 6px; }
.form-msg { margin-top: 16px; font-size: 14px; display: none; padding: 12px 16px; border-radius: 2px; }
.form-msg.success { display: block; background: #eef6ee; color: #2e6b2e; border: 1px solid #cde5cd; }
.form-msg.error { display: block; background: #fbeeec; color: #a33a33; border: 1px solid #ecccc8; }

/* ---------- CTA 条 ---------- */
.cta-band {
  background: var(--ink); color: var(--paper); text-align: center; padding: 90px 0;
}
.cta-band h2 { font-family: var(--serif); font-size: 32px; letter-spacing: 4px; margin-bottom: 14px; }
.cta-band p { color: rgba(250,248,244,0.75); margin-bottom: 34px; }

/* ---------- 页脚 ---------- */
.site-footer { background: #141414; color: rgba(250,248,244,0.65); padding: 70px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 50px; }
.footer-grid h4 { color: var(--paper); font-family: var(--serif); font-size: 17px; letter-spacing: 3px; margin-bottom: 18px; }
.footer-grid p, .footer-grid a { font-size: 14px; line-height: 2.1; }
.footer-grid a:hover { color: var(--gold); }
.footer-brand .brand-name { color: var(--paper); }
.footer-bottom {
  border-top: 1px solid rgba(250,248,244,0.12); padding-top: 26px;
  display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  font-size: 12.5px; color: rgba(250,248,244,0.4);
}
.footer-legal {
  border-top: 1px solid rgba(250,248,244,0.12);
  padding: 22px 0 18px; margin-top: 0;
  display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap;
  font-size: 13px; color: rgba(250,248,244,0.55);
}
.footer-legal a { color: rgba(250,248,244,0.7); }
.footer-legal a:hover { color: var(--gold); }
.footer-legal .sep { margin: 0 10px; opacity: 0.5; }
.legal-links { display: flex; align-items: center; }

/* ---------- 免责声明页 ---------- */
.legal-page { padding: 60px 0 100px; }
.legal-page h2 {
  font-family: var(--serif); font-size: 24px; letter-spacing: 2px;
  margin: 48px 0 16px; padding-left: 14px; border-left: 3px solid var(--gold);
}
.legal-page h2:first-of-type { margin-top: 24px; }
.legal-page p, .legal-page li { font-size: 15px; color: var(--ink-soft); margin-bottom: 12px; }
.legal-page ol, .legal-page ul { padding-left: 22px; margin-bottom: 18px; }
.legal-page li { list-style: decimal; margin-bottom: 10px; }
.legal-page ul li { list-style: disc; }
.legal-meta { font-size: 13px; color: var(--ink-light); margin-bottom: 10px; }

/* ---------- 登录弹窗 ---------- */
.modal-mask {
  position: fixed; inset: 0; background: rgba(20,20,20,0.5); z-index: 200;
  display: none; align-items: center; justify-content: center; padding: 20px;
  backdrop-filter: blur(4px);
}
.modal-mask.show { display: flex; }
.modal {
  background: var(--paper); width: 100%; max-width: 420px; border-radius: 6px;
  padding: 44px 40px 36px; position: relative; box-shadow: 0 30px 80px rgba(0,0,0,0.25);
  animation: modalIn 0.28s ease;
}
@keyframes modalIn { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
.modal-close {
  position: absolute; top: 16px; right: 18px; font-size: 22px; color: var(--ink-light);
  cursor: pointer; background: none; border: none; line-height: 1;
}
.modal-close:hover { color: var(--ink); }
.modal .brand-seal { margin: 0 auto 14px; width: 50px; height: 50px; font-size: 24px; }
.modal h3 { font-family: var(--serif); text-align: center; font-size: 24px; letter-spacing: 4px; margin-bottom: 6px; }
.modal .modal-sub { text-align: center; font-size: 13px; color: var(--ink-light); margin-bottom: 28px; }
.auth-tabs { display: flex; border-bottom: 1px solid var(--line); margin-bottom: 26px; }
.auth-tab {
  flex: 1; text-align: center; padding: 12px 0; font-size: 15px; cursor: pointer;
  color: var(--ink-light); border-bottom: 2px solid transparent; margin-bottom: -1px;
  background: none; border-left: none; border-right: none; border-top: none;
  font-family: var(--sans); letter-spacing: 2px;
}
.auth-tab.active { color: var(--ink); border-bottom-color: var(--gold); font-weight: 600; }
.modal .form-msg { margin: 0 0 16px; }

/* ---------- 入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .main-nav { display: none; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; gap: 40px; }
  .contact-wrap { grid-template-columns: 1fr; }
  .svc-block { grid-template-columns: 1fr; gap: 30px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 38px; }
  .hero-stats { gap: 28px; flex-wrap: wrap; }
  .form-row { grid-template-columns: 1fr; }
  .section { padding: 70px 0; }
}