@charset "utf-8";
/* CSS Document */


:root {
  --primary: #1a6b4a;
  --primary-dark: #145a3d;
  --primary-light: #e8f5ee;
  --primary-lighter: #e8f5ee;
  --primary-50: #f0faf4;
  --accent: #d4a843;
  --accent-light: #f5edda;
  --text-dark: #1a1a1a;
  --text-body: #333333;
  --text-secondary: #555555;
  --text-light: #777777;
  --bg-white: #ffffff;
  --bg-light: #f8faf9;
  --bg-gray: #f0f2f1;
  --border: #e0e5e2;
  --border-light: #eef1ef;
  --danger: #c0392b;
  --danger-light: #fdf0ee;
  --warning: #e67e22;
  --warning-light: #fef5ec;
  --success: #27ae60;
  --shadow-sm: 0 1px 3px rgba(26,107,74,0.08);
  --shadow-md: 0 4px 12px rgba(26,107,74,0.1);
  --shadow-lg: 0 8px 30px rgba(26,107,74,0.12);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 50%, #0d4a32 100%);
  color: #fff; padding: 80px 24px; text-align: center;
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle at 30% 70%, rgba(255,255,255,0.05) 0%, transparent 50%),
              radial-gradient(circle at 70% 30%, rgba(212,168,67,0.08) 0%, transparent 40%);
}
.hero-content { position: relative; z-index: 1; max-width: 800px; margin: 0 auto; }
.hero h1 { font-size: 48px; font-weight: 900; margin-bottom: 16px; letter-spacing: 2px; }
.hero p { font-size: 20px; opacity: 0.9; font-weight: 300; line-height: 1.6; }
.hero-badge {
  display: inline-block; margin-top: 24px;
  background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.25);
  padding: 8px 20px; border-radius: 50px; font-size: 14px; font-weight: 500;
}

/* 通用板块 */
.section {
  padding: 80px 24px;
}
.section-alt { background: var(--bg-light); }
.section-white { background: var(--bg-white); }
.container-newcolumn { max-width: 1200px; margin: 0 auto; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-tag {
  display: inline-block; font-size: 13px; font-weight: 700;
  color: var(--primary); background: var(--primary-lighter);
  padding: 4px 14px; border-radius: 50px; margin-bottom: 16px;
  text-transform: uppercase; letter-spacing: 1px;
}
.section-title {
  font-size: 36px; font-weight: 900; color: var(--text-dark);
  margin-bottom: 12px; line-height: 1.3;
}
.section-desc { font-size: 17px; color: var(--text-light); max-width: 680px; margin: 0 auto; }

/* 标准变化卡片 */
.change-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; }
.change-card {
  background: var(--bg-white); border-radius: var(--radius-lg);
  padding: 28px; border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm); transition: all 0.3s;
}
.change-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.change-card .item { font-size: 15px; font-weight: 700; color: var(--primary-dark); margin-bottom: 12px; }
.change-card .old { color: var(--text-light); font-size: 14px; margin-bottom: 4px; }
.change-card .old::before { content: '旧：'; font-weight: 600; }
.change-card .new { color: var(--primary); font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.change-card .new::before { content: '新：'; font-weight: 700; }
.change-card .meaning { font-size: 13px; color: var(--text-light); padding-top: 8px; border-top: 1px dashed var(--border); margin-top: 8px; }
.change-card .meaning::before { content: '意义：'; font-weight: 600; color: var(--text-secondary); }

/* 国标信息条 */
.standard-bar {
  background: var(--primary-lighter); border-left: 4px solid var(--primary);
  padding: 20px 24px; border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-bottom: 16px; display: flex; align-items: flex-start; gap: 16px;
}
.standard-bar .icon { font-size: 24px; flex-shrink: 0; margin-top: 2px; }
.standard-bar .info h4 { font-size: 16px; color: var(--primary-dark); margin-bottom: 4px; }
.standard-bar .info p { font-size: 14px; color: var(--text-secondary); }

/* 注册制 */
.register-box {
  background: var(--bg-white); border-radius: var(--radius-lg);
  padding: 36px; border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.register-box h3 { font-size: 20px; color: var(--primary-dark); margin-bottom: 20px; }
.register-format {
  background: var(--bg-gray); border-radius: var(--radius-md);
  padding: 16px 20px; font-family: 'Courier New', monospace;
  font-size: 18px; text-align: center; margin: 16px 0;
  letter-spacing: 2px; color: var(--primary);
  border: 1px dashed var(--primary-light);
}
.register-steps { list-style: none; padding: 0; }
.register-steps li {
  padding: 12px 0; border-bottom: 1px solid var(--border-light);
  display: flex; align-items: flex-start; gap: 12px; font-size: 15px;
}
.register-steps li:last-child { border-bottom: none; }
.register-steps .num {
  background: var(--primary); color: #fff; width: 26px; height: 26px;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; flex-shrink: 0;
}

/* 监管体系 */
.supervision-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; margin-bottom: 40px; }
.supervision-card {
  background: var(--bg-white); border-radius: var(--radius-lg);
  padding: 28px; border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm); text-align: center;
}
.supervision-card .icon-circle {
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--primary-lighter); display: flex; align-items: center;
  justify-content: center; margin: 0 auto 16px; font-size: 28px;
}
.supervision-card h4 { font-size: 17px; color: var(--text-dark); margin-bottom: 8px; }
.supervision-card p { font-size: 14px; color: var(--text-secondary); }

/* 进口监管 */
.import-compare {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 32px 0;
}
.import-card {
  border-radius: var(--radius-lg); padding: 24px; text-align: center;
  border: 2px solid var(--border);
}
.import-card.safe { border-color: var(--success); background: #f0faf4; }
.import-card.warn { border-color: var(--warning); background: var(--warning-light); }
.import-card.danger { border-color: var(--danger); background: var(--danger-light); }
.import-card .badge {
  display: inline-block; padding: 4px 12px; border-radius: 50px;
  font-size: 12px; font-weight: 700; margin-bottom: 12px; color: #fff;
}
.import-card.safe .badge { background: var(--success); }
.import-card.warn .badge { background: var(--warning); }
.import-card.danger .badge { background: var(--danger); }
.import-card h4 { font-size: 16px; margin-bottom: 8px; }
.import-card p { font-size: 13px; color: var(--text-secondary); }

/* 时间线 */
.timeline { position: relative; padding-left: 40px; }
.timeline::before {
  content: ''; position: absolute; left: 15px; top: 0; bottom: 0;
  width: 3px; background: linear-gradient(to bottom, var(--primary), var(--primary-light));
  border-radius: 3px;
}
.timeline-item { position: relative; margin-bottom: 32px; }
.timeline-item:last-child { margin-bottom: 0; }
.timeline-dot {
  position: absolute; left: -33px; top: 4px;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--primary); border: 3px solid var(--primary-lighter);
}
.timeline-year {
  font-size: 14px; font-weight: 700; color: var(--primary);
  margin-bottom: 4px;
}
.timeline-event { font-size: 15px; font-weight: 600; color: var(--text-dark); margin-bottom: 4px; }
.timeline-impact { font-size: 13px; color: var(--text-light); }

/* 历史事件 */
.history-card {
  background: var(--bg-white); border-radius: var(--radius-lg);
  padding: 32px; margin-bottom: 24px;
  border: 1px solid var(--border-light); box-shadow: var(--shadow-sm);
}
.history-card.highlight {
  border-left: 4px solid var(--danger);
  background: linear-gradient(135deg, var(--danger-light) 0%, var(--bg-white) 40%);
}
.history-card h3 { font-size: 20px; color: var(--text-dark); margin-bottom: 16px; }
.history-detail { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 16px; }
.history-detail-item {
  background: var(--bg-gray); padding: 12px 16px; border-radius: var(--radius-sm);
}
.history-detail-item .label { font-size: 12px; color: var(--text-light); margin-bottom: 4px; }
.history-detail-item .value { font-size: 15px; font-weight: 600; color: var(--text-dark); }

.recovery-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; margin-top: 32px; }
.stat-card {
  background: var(--primary-lighter); border-radius: var(--radius-lg);
  padding: 24px; text-align: center;
}
.stat-card .number { font-size: 36px; font-weight: 900; color: var(--primary); }
.stat-card .unit { font-size: 14px; color: var(--primary); font-weight: 500; }
.stat-card .desc { font-size: 14px; color: var(--text-secondary); margin-top: 8px; }

/* 自查步骤 */
.check-steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.check-step {
  background: var(--bg-white); border-radius: var(--radius-lg);
  padding: 28px; border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm); position: relative; overflow: hidden;
}
.check-step::before {
  content: attr(data-step); position: absolute; top: -8px; right: -4px;
  font-size: 72px; font-weight: 900; color: var(--primary-lighter);
  line-height: 1; opacity: 0.5;
}
.check-step .step-icon {
  width: 48px; height: 48px; border-radius: var(--radius-md);
  background: var(--primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 700; margin-bottom: 16px;
}
.check-step h4 { font-size: 18px; color: var(--text-dark); margin-bottom: 12px; }
.check-step ul { list-style: none; padding: 0; }
.check-step ul li {
  padding: 6px 0; font-size: 14px; color: var(--text-secondary);
  display: flex; align-items: flex-start; gap: 8px;
}
.check-step ul li::before { content: '✓'; color: var(--primary); font-weight: 700; flex-shrink: 0; }
.check-step .warning-text {
  margin-top: 12px; padding: 8px 12px; background: var(--danger-light);
  border-radius: var(--radius-sm); font-size: 13px; color: var(--danger);
  font-weight: 600;
}

/* 高风险警示 */
.risk-list { list-style: none; padding: 0; }
.risk-list li {
  display: flex; align-items: flex-start; gap: 16px;
  padding: 20px; margin-bottom: 12px;
  background: var(--danger-light); border-radius: var(--radius-md);
  border-left: 4px solid var(--danger);
}
.risk-list .risk-icon {
  font-size: 24px; flex-shrink: 0; margin-top: 2px;
}
.risk-list .risk-content h4 { font-size: 15px; color: var(--danger); margin-bottom: 4px; }
.risk-list .risk-content p { font-size: 14px; color: var(--text-secondary); }

.alert-2026 {
  background: linear-gradient(135deg, #fff8e1, #fff3e0);
  border: 2px solid var(--warning);
  border-radius: var(--radius-lg); padding: 28px; margin-top: 32px;
}
.alert-2026 h4 { font-size: 17px; color: var(--warning); margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.alert-2026 p { font-size: 14px; color: var(--text-secondary); margin-bottom: 8px; }
.alert-2026 p:last-child { margin-bottom: 0; }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--border); border-radius: var(--radius-md);
  margin-bottom: 12px; overflow: hidden; background: var(--bg-white);
}
.faq-q {
  padding: 18px 24px; font-weight: 600; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 15px; color: var(--text-dark); transition: background 0.2s;
}
.faq-q:hover { background: var(--bg-light); }
.faq-q .arrow { transition: transform 0.3s; color: var(--primary); font-size: 18px; }
.faq-q.active .arrow { transform: rotate(180deg); }
.faq-a {
  padding: 0 24px; max-height: 0; overflow: hidden;
  transition: all 0.3s ease; font-size: 14px; color: var(--text-secondary);
  line-height: 1.8;
}
.faq-a.open { padding: 0 24px 18px; max-height: 500px; }

.container-newcolumn {max-width: 1200px;margin: 0 auto;padding: 0px 20px;}


/* 响应式 */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-links.open {
    display: flex; flex-direction: column; position: absolute;
    top: 60px; left: 0; right: 0; background: #fff;
    padding: 16px; border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
  }
  .hero h1 { font-size: 32px; }
  .hero p { font-size: 16px; }
  .section { padding: 48px 16px; }
  .section-title { font-size: 26px; }
  .import-compare { grid-template-columns: 1fr; }
  .change-grid { grid-template-columns: 1fr; }
  .check-steps { grid-template-columns: 1fr; }
  .supervision-grid { grid-template-columns: 1fr; }
  .history-detail { grid-template-columns: 1fr; }
  .recovery-stats { grid-template-columns: 1fr; }
  .topic-nav { padding: 24px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 26px; }
  .section-title { font-size: 22px; }
  .container-newcolumn { padding: 0; }
}