/* 牛元宝牛肉饭 — 品牌官网样式表 v4.0 (VI规范版) */
:root {
  /* VI标准色 - 牧草绿体系 */
  --nyb-primary: #1B5E20;
  --nyb-primary-dark: #0D3B10;
  --nyb-primary-light: #2E7D32;
  --nyb-primary-50: #E8F5E9;
  --nyb-primary-100: #C8E6C9;
  /* VI标准色 - 肌理棕体系 */
  --nyb-accent: #8B6914;
  --nyb-accent-light: #C4894A;
  --nyb-accent-dark: #5D4037;
  /* VI辅助色 */
  --nyb-cream: #F5F5DC;
  --nyb-cream-light: #FFFEF5;
  --nyb-bg: #F5F5DC;
  --nyb-white: #FFFFFF;
  --nyb-black: #1A1A1A;
  --nyb-gray-50: #FAFAFA;
  --nyb-gray-100: #F5F5F5;
  --nyb-gray-200: #EEEEEE;
  --nyb-gray-300: #E0E0E0;
  --nyb-gray-400: #BDBDBD;
  --nyb-gray-500: #9E9E9E;
  --nyb-gray-600: #757575;
  --nyb-gray-700: #616161;
  --nyb-gray-800: #424242;
  --nyb-gray-900: #212121;
  --nyb-font-body: 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --nyb-font-number: 'Arial', sans-serif;
  --nyb-radius-sm: 6px;
  --nyb-radius-md: 10px;
  --nyb-radius-lg: 16px;
  --nyb-radius-xl: 18px;
  --nyb-radius-full: 9999px;
  --nyb-shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --nyb-shadow-md: 0 4px 14px rgba(0,0,0,0.09);
  --nyb-shadow-lg: 0 8px 28px rgba(0,0,0,0.11);
  --nyb-shadow-xl: 0 16px 48px rgba(0,0,0,0.14);
  --nyb-gradient-warm: linear-gradient(135deg, #8B6914, #C4894A);
  --transition: all 0.3s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--nyb-font-body); color: #333; background: var(--nyb-white); line-height: 1.7; }
a { color: var(--nyb-primary); text-decoration: none; }
a:hover { color: var(--nyb-primary-dark); }
img { max-width: 100%; height: auto; }
ul { list-style: none; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* Nav */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.97); border-bottom: 1px solid #eee;
  transition: var(--transition);
}
.navbar .container {
  display: flex; align-items: center; justify-content: space-between; height: 72px;
}
.navbar .logo { display: flex; align-items: center; gap: 12px; font-size: 20px; font-weight: 800; color: var(--nyb-primary); }
.navbar .logo .logo-mark { display: flex; align-items: center; flex-shrink: 0; }
.navbar .logo .logo-mark img { display: block; width: auto; height: 42px; }
.footer-brand img.footer-logo-img { height: 36px; width: auto; margin-bottom: 12px; border-radius: 4px; }
.ip-character-img { max-width: 100%; height: auto; border-radius: var(--nyb-radius-lg); }
.hero-ip-card .ip-character img { max-width: 120px; max-height: 120px; border-radius: 50%; object-fit: cover; }
.ip-image img { max-width: 320px; height: auto; border-radius: var(--nyb-radius-lg); box-shadow: var(--nyb-shadow-md); }
.navbar .logo .logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.navbar .logo .brand-name { font-size: 20px; font-weight: 800; color: var(--nyb-primary); letter-spacing: 2px; }
.navbar .logo .brand-slogan { font-size: 10px; color: var(--nyb-accent); letter-spacing: 3px; font-weight: 600; }
.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-links a { padding: 8px 20px; font-size: 14px; font-weight: 500; color: #555; border-radius: var(--nyb-radius-sm); }
.nav-links a:hover, .nav-links a.active { color: var(--nyb-primary); background: var(--nyb-primary-50); }
.nav-links .btn-nav-cta {
  background: var(--nyb-gradient-warm); color: #fff !important; padding: 9px 24px;
  border-radius: var(--nyb-radius-full); font-weight: 700; margin-left: 12px;
}
.menu-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 6px; background: none; border: none; }
.menu-toggle span { display: block; width: 22px; height: 2px; background: var(--nyb-primary); border-radius: 2px; }

/* Hero */
.hero { padding: 148px 0 80px; background: var(--nyb-bg); min-height: 80vh; display: flex; align-items: center; position: relative; overflow: hidden; }
.hero .container { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 60px; align-items: center; position: relative; z-index: 1; }
.hero-content .hero-tag { display: inline-flex; padding: 5px 16px; background: var(--nyb-primary); color: #fff; border-radius: var(--nyb-radius-full); font-size: 13px; font-weight: 600; margin-bottom: 20px; }
.hero-content h1 { font-size: 48px; font-weight: 900; line-height: 1.15; color: #222; margin-bottom: 6px; }
.hero-content h1 .highlight { color: var(--nyb-primary); }
.hero-content .slogan-line { display: flex; align-items: center; gap: 10px; margin: 16px 0 20px; }
.hero-content .slogan-text { font-size: 24px; font-weight: 700; color: var(--nyb-accent); letter-spacing: 2px; }
.hero-content .slogan-divider { width: 40px; height: 2px; background: var(--nyb-accent); }
.hero-trust { display: flex; align-items: center; gap: 16px; margin-bottom: 28px; padding: 12px 20px; background: var(--nyb-bg); border-radius: var(--nyb-radius-md); border-left: 3px solid var(--nyb-primary); }
.hero-trust .trust-text { font-size: 14px; font-weight: 500; color: #555; }
.hero-trust .trust-text strong { color: var(--nyb-primary); }
.hero-content .desc { font-size: 16px; color: #666; line-height: 1.9; margin-bottom: 32px; max-width: 480px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }

/* Hero IP Card */
.hero-ip-card { width: 100%; max-width: 420px; background: var(--nyb-bg); border-radius: var(--nyb-radius-xl); padding: 40px 32px 32px; text-align: center; box-shadow: var(--nyb-shadow-lg); border: 1px solid rgba(196,137,74,0.15); }
.hero-ip-card .ip-badge { display: inline-flex; padding: 4px 14px; background: var(--nyb-gradient-warm); color: #fff; border-radius: var(--nyb-radius-full); font-size: 12px; font-weight: 600; margin-bottom: 16px; }
.hero-ip-card .ip-character { width: 140px; height: 140px; margin: 0 auto 16px; background: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 20px rgba(0,0,0,0.08); }
.hero-ip-card .ip-character svg { width: 90px; height: 90px; }
.hero-ip-card .ip-name { font-size: 22px; font-weight: 800; color: var(--nyb-primary); margin-bottom: 4px; }
.hero-ip-card .ip-slogan { font-size: 14px; color: var(--nyb-accent); font-weight: 600; letter-spacing: 6px; margin-bottom: 20px; }
.hero-ip-card .ip-tags { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; }
.hero-ip-card .ip-tags span { padding: 4px 12px; background: var(--nyb-primary-50); border-radius: var(--nyb-radius-full); font-size: 12px; color: var(--nyb-primary); font-weight: 600; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 34px; border: none; border-radius: var(--nyb-radius-md); font-size: 15px; font-weight: 600; cursor: pointer; font-family: inherit; }
.btn-primary { background: var(--nyb-primary); color: #fff; }
.btn-primary:hover { background: var(--nyb-primary-dark); transform: translateY(-2px); box-shadow: var(--nyb-shadow-md); }
.btn-outline { background: transparent; color: var(--nyb-primary); border: 2px solid var(--nyb-primary); }
.btn-outline:hover { background: var(--nyb-primary); color: #fff; transform: translateY(-2px); }
.btn-gold { background: var(--nyb-gradient-warm); color: #fff; }
.btn-gold:hover { transform: translateY(-2px); box-shadow: var(--nyb-shadow-md); }

/* Sections */
.section { padding: 96px 0; }
.section-alt { background: var(--nyb-bg); }
.section-green { background: var(--nyb-primary-50); }
.section-header { text-align: center; margin-bottom: 50px; }
.section-header .section-tag { display: inline-flex; padding: 5px 16px; background: var(--nyb-primary-50); color: var(--nyb-primary); border-radius: var(--nyb-radius-full); font-size: 13px; font-weight: 600; margin-bottom: 14px; }
.section-divider { width: 60px; height: 3px; background: var(--nyb-accent); margin: 0 auto 16px; border-radius: 2px; }
.section-header h2 { font-size: 34px; font-weight: 800; color: #222; margin-bottom: 14px; }
.section-header h2 .highlight { color: var(--nyb-primary); }
.section-header p { font-size: 16px; color: #666; max-width: 560px; margin: 0 auto; line-height: 1.8; }

/* Stats */
.stats-section { padding: 56px 0; background: #fff; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-card { text-align: center; padding: 32px 16px; position: relative; }
.stat-card .stat-num { font-size: 40px; font-weight: 900; color: var(--nyb-primary); line-height: 1; margin-bottom: 8px; }
.stat-card .stat-num .stat-suffix { font-size: 18px; font-weight: 700; }
.stat-card .stat-label { font-size: 14px; color: #888; }

/* Features */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card { background: #fff; border-radius: var(--nyb-radius-lg); padding: 38px 30px; text-align: center; box-shadow: var(--nyb-shadow-sm); border: 1px solid #eee; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--nyb-shadow-lg); }
.feature-card .f-icon { width: 60px; height: 60px; background: var(--nyb-primary-50); border-radius: 16px; display: flex; align-items: center; justify-content: center; margin: 0 auto 18px; font-size: 28px; }
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: #222; }
.feature-card p { font-size: 14px; color: #666; line-height: 1.8; }

/* Steps */
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px 28px; }
.step-card { text-align: center; padding: 36px 20px; }
.step-card .step-circle { width: 56px; height: 56px; background: var(--nyb-bg); border: 3px solid var(--nyb-primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 18px; font-size: 22px; font-weight: 800; color: var(--nyb-primary); }
.step-card h4 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.step-card p { font-size: 14px; color: #666; line-height: 1.8; max-width: 260px; margin: 0 auto; }

/* Page Header */
.page-header { padding: 128px 0 56px; background: var(--nyb-primary); color: #fff; text-align: center; position: relative; overflow: hidden; }
.page-header h1 { font-size: 38px; font-weight: 800; margin-bottom: 12px; letter-spacing: 1px; }
.page-header p { font-size: 16px; opacity: 0.85; max-width: 500px; margin: 0 auto; }

/* Footer */
.footer { background: var(--nyb-primary-dark); color: rgba(255,255,255,0.6); padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .footer-logo-text { font-size: 22px; font-weight: 800; color: #fff; margin-bottom: 12px; letter-spacing: 2px; }
.footer-brand .footer-logo-text .logo-highlight { color: var(--nyb-primary-100); }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 280px; opacity: 0.7; }
.footer-col h4 { font-size: 14px; font-weight: 700; color: #fff; margin-bottom: 18px; }
.footer-col a { display: block; color: rgba(255,255,255,0.55); font-size: 14px; padding: 5px 0; }
.footer-col a:hover { color: var(--nyb-accent-light); padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; font-size: 13px; opacity: 0.5; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.contact-info .ci-card-title { font-size: 24px; font-weight: 800; color: #222; margin-bottom: 16px; }
.contact-info .ci-desc { color: #666; margin-bottom: 28px; line-height: 1.8; }
.contact-info .info-item { display: flex; align-items: flex-start; gap: 14px; margin-bottom: 20px; }
.contact-info .info-item .ci-icon { width: 44px; height: 44px; background: var(--nyb-primary-50); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 20px; flex-shrink: 0; }
.contact-info .info-item .ci-text { font-size: 14px; }
.contact-info .info-item .ci-text strong { display: block; color: #222; margin-bottom: 2px; font-size: 15px; }
.contact-form-wrap { background: #fff; padding: 32px; border-radius: var(--nyb-radius-lg); box-shadow: var(--nyb-shadow-md); }

/* Form base */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: #555; margin-bottom: 5px; }
.form-group label .required { color: #D32F2F; }
.form-group input, .form-group textarea, .form-group select { width: 100%; padding: 10px 14px; border: 1.5px solid #ddd; border-radius: var(--nyb-radius-sm); font-size: 14px; font-family: inherit; background: #fff; }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { outline: none; border-color: var(--nyb-primary); }
.form-group textarea { min-height: 120px; resize: vertical; }

/* Animations */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ===== Form Card ===== */
.form-card { background: #fff; border-radius: var(--nyb-radius-lg); box-shadow: var(--nyb-shadow-md); margin-bottom: 20px; border: 1px solid rgba(46,125,50,0.06); }
.form-card-header { display: flex; align-items: center; gap: 10px; padding: 16px 24px; border-bottom: 2px solid var(--nyb-primary); background: var(--nyb-primary-50); border-radius: var(--nyb-radius-lg) var(--nyb-radius-lg) 0 0; font-size: 16px; font-weight: 700; color: var(--nyb-primary-dark); }
.form-card-header .step-num { display: inline-flex; align-items: center; justify-content: center; width: 26px; height: 26px; border-radius: 50%; background: var(--nyb-primary); color: #fff; font-size: 13px; font-weight: 700; }
.form-card-body { padding: 20px 24px; }
.form-card-body .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 24px; }
.form-card-body .form-grid.col-3 { grid-template-columns: 1fr 1fr 1fr; }
.form-card-body .form-grid.col-1 { grid-template-columns: 1fr; }
.form-card-body .form-group.full { grid-column: 1 / -1; }

/* Process Flow */
.process-flow { padding: 8px 0; }
.process-item { display: flex; align-items: flex-start; gap: 16px; padding: 12px 0; border-bottom: 1px solid #f0f0f0; }
.process-item:last-child { border-bottom: none; }
.process-status { flex-shrink: 0; width: 36px; display: flex; flex-direction: column; align-items: center; }
.process-status .dot { width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; color: #fff; }
.process-status .dot.done { background: #388E3C; }
.process-status .dot.active { background: #1976D2; }
.process-status .dot.pending { background: #ccc; color: #999; }
.process-status .line { width: 2px; flex: 1; min-height: 16px; background: #e0e0e0; }
.process-status .line.done-line { background: #388E3C; }
.process-content { flex: 1; min-width: 0; }
.process-content .pc-header { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.process-content .pc-name { font-weight: 600; font-size: 14px; }
.process-content .pc-badge { font-size: 11px; padding: 2px 8px; border-radius: 10px; font-weight: 600; }
.pc-badge.b-done { background: #E8F5E9; color: #388E3C; }
.pc-badge.b-active { background: #E3F2FD; color: #1976D2; }
.pc-badge.b-pending { background: #f5f5f5; color: #999; }
.process-content .pc-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 16px; margin-top: 6px; }
.process-content .pc-meta .m-item { display: flex; align-items: center; gap: 6px; font-size: 13px; color: #555; }
.process-content .pc-meta .m-item .m-label { color: #999; white-space: nowrap; }
.process-content .pc-meta .m-item input, .process-content .pc-meta .m-item select { flex: 1; padding: 4px 8px; border: 1px solid #ddd; border-radius: 4px; font-size: 13px; }
.status-bar { display: flex; gap: 16px; padding: 16px 24px; background: var(--nyb-bg); border-radius: 8px; margin-bottom: 20px; flex-wrap: wrap; }
.status-bar .sb-item { display: flex; align-items: center; gap: 6px; font-size: 13px; }
.status-bar .sb-dot { width: 12px; height: 12px; border-radius: 50%; }
.status-bar .sb-dot.sb-done { background: #388E3C; }
.status-bar .sb-dot.sb-active { background: #1976D2; }
.status-bar .sb-dot.sb-pending { background: #ccc; border: 1px solid #aaa; }
.timeline-summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin-bottom: 16px; }
.ts-card { text-align: center; padding: 14px 10px; background: var(--nyb-bg); border-radius: 8px; }
.ts-card .ts-num { font-size: 28px; font-weight: 700; color: var(--nyb-primary); }
.ts-card .ts-label { font-size: 12px; color: #999; margin-top: 2px; }
.action-bar { display: flex; gap: 12px; justify-content: flex-end; padding: 20px 24px; border-top: 1px solid #e0e0e0; flex-wrap: wrap; }
.tag-group { display: flex; gap: 6px; flex-wrap: wrap; }
.tag { display: inline-flex; align-items: center; gap: 4px; padding: 4px 10px; border-radius: 12px; font-size: 12px; font-weight: 500; cursor: pointer; border: 1px solid transparent; user-select: none; }
.tag input[type="checkbox"] { display: none; }
.tag-default { background: #f5f5f5; color: #555; border-color: #ddd; }
.tag-default.active { background: #E8F5E9; color: var(--nyb-primary); border-color: var(--nyb-primary); }

/* Responsive */
@media (max-width: 968px) {
  .hero .container { grid-template-columns: 1fr; text-align: center; gap: 40px; }
  .hero-content .desc { margin: 0 auto 28px; }
  .hero-cta { justify-content: center; }
  .features-grid, .steps-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .menu-toggle { display: flex; }
  .nav-links { position: fixed; top: 72px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 20px 24px; box-shadow: 0 8px 24px rgba(0,0,0,0.1); transform: translateY(-120%); opacity: 0; pointer-events: none; transition: var(--transition); }
  .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-links a { width: 100%; padding: 14px 16px; }
  .nav-links .btn-nav-cta { margin-left: 0; margin-top: 8px; }
  .hero { padding: 108px 0 50px; min-height: auto; }
  .hero-content h1 { font-size: 32px; }
  .section { padding: 60px 0; }
  .section-header h2 { font-size: 26px; }
  .features-grid, .steps-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .process-content .pc-meta { grid-template-columns: 1fr; }
  .form-card-body .form-grid, .form-card-body .form-grid.col-3 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .page-header { padding: 108px 0 40px; }
  .page-header h1 { font-size: 28px; }
}