/* SlanMeet 介绍页独立样式 */

:root {
  --sm-primary: #4f46e5;
  --sm-primary-dark: #4338ca;
  --sm-accent: #7c3aed;
  --sm-ink: #1f2937;
  --sm-muted: #6b7280;
  --sm-bg-soft: #f9fafb;
  --sm-line: #e5e7eb;
  --sm-radius: 16px;
  --sm-shadow: 0 10px 30px rgba(31, 41, 55, 0.08);
  --sm-shadow-hover: 0 18px 40px rgba(79, 70, 229, 0.18);
}

/* 顶部留白，避免导航栏遮挡 */
.sm-hero {
  position: relative;
  overflow: hidden;
  padding: 110px 24px 120px;
  text-align: center;
  color: #fff;
  background: radial-gradient(1200px 500px at 50% -10%, rgba(124, 58, 237, 0.55), transparent 60%),
              linear-gradient(135deg, #1e1b4b 0%, #4f46e5 55%, #7c3aed 100%);
}
/* 装饰光斑 */
.sm-hero::before,
.sm-hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.5;
  pointer-events: none;
}
.sm-hero::before {
  width: 360px; height: 360px;
  background: #6366f1;
  top: -80px; left: -60px;
}
.sm-hero::after {
  width: 300px; height: 300px;
  background: #a855f7;
  bottom: -100px; right: -40px;
}

.sm-badge {
  position: relative;
  display: inline-block;
  padding: 8px 18px;
  margin-bottom: 28px;
  font-size: 14px;
  letter-spacing: 0.5px;
  color: #e0e7ff;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  backdrop-filter: blur(4px);
}
.sm-hero h1 {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  margin: 0 auto 18px;
  max-width: 100%;
  font-size: 68px;
  font-weight: 800;
  letter-spacing: -1px;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}
.sm-title-text { /* 主标题文字：flex 子项 */ }
/* Hero 标题旁的「免费」高亮金徽章 */
.sm-free-tag {
  padding: 8px 16px;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 2px;
  color: #fff;
  background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  border-radius: 999px;
  box-shadow: 0 8px 22px rgba(239, 68, 68, 0.35),
              0 0 0 2px rgba(255,255,255,0.25) inset;
  transform: rotate(-2deg);
  white-space: nowrap;
}
.sm-hero .sm-sub {
  position: relative;
  font-size: 22px;
  color: #e5e7ff;
  max-width: 720px;
  margin: 0 auto 40px;
  line-height: 1.6;
}
.sm-hero .sm-sub b { color: #fff; font-weight: 600; }

.sm-cta-row {
  position: relative;
  display: flex;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
}
.sm-btn {
  display: inline-block;
  padding: 16px 40px;
  font-size: 17px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 999px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}
.sm-btn-primary {
  color: #4338ca;
  background: #fff;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.2);
}
.sm-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.28);
}
.sm-btn-ghost {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.35);
}
.sm-btn-ghost:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}
.sm-hero .sm-tip {
  position: relative;
  margin-top: 22px;
  font-size: 14px;
  color: #c7d2fe;
}


/* 区块通用 */
.sm-section { padding: 84px 24px; }
.sm-section-soft { background: var(--sm-bg-soft); }
.sm-section-title {
  text-align: center;
  font-size: 34px;
  font-weight: 700;
  color: var(--sm-ink);
  margin-bottom: 12px;
}
.sm-section-desc {
  text-align: center;
  font-size: 17px;
  color: var(--sm-muted);
  max-width: 640px;
  margin: 0 auto 56px;
  line-height: 1.7;
}

/* 特色卡片网格 */
.sm-grid {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.sm-card {
  background: #fff;
  border: 1px solid var(--sm-line);
  border-radius: var(--sm-radius);
  padding: 36px 30px;
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.sm-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--sm-shadow-hover);
  border-color: transparent;
}
.sm-card .sm-ico {
  width: 72px;
  height: 72px;
  margin: 0 auto 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, #eef2ff, #f5f3ff);
}
.sm-card .sm-ico img { width: 38px; height: 38px; }
.sm-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--sm-ink);
  margin-bottom: 12px;
}
.sm-card p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--sm-muted);
}

/* 「永久免费」特色卡高亮样式 */
.sm-card-free {
  position: relative;
  border-color: transparent;
  background:
    linear-gradient(#fff, #fff) padding-box,
    linear-gradient(135deg, #fbbf24, #f59e0b, #ef4444) border-box;
  border: 2px solid transparent;
  box-shadow: 0 14px 36px rgba(245, 158, 11, 0.20);
}
.sm-card-free:hover {
  box-shadow: 0 22px 48px rgba(245, 158, 11, 0.28);
}
/* 右上角「免」角标 */
.sm-card-free::after {
  content: "免";
  position: absolute;
  top: 14px;
  right: 14px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  box-shadow: 0 4px 10px rgba(239, 68, 68, 0.35);
}
/* 金色渐变的 FREE 图标容器 */
.sm-card-free .sm-ico-free {
  width: 78px;
  height: 78px;
  background: linear-gradient(135deg, #fbbf24, #f59e0b 55%, #ef4444);
  box-shadow: 0 8px 20px rgba(245, 158, 11, 0.35);
}
.sm-card-free .sm-ico-free span {
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 1px;
  color: #fff;
  text-shadow: 0 1px 4px rgba(0,0,0,0.15);
}
.sm-card-free h3 {
  background: linear-gradient(135deg, #b45309, #dc2626);
  -webkit-background-clip: text;
          background-clip: text;
  -webkit-text-fill-color: transparent;
}
.sm-card-free p { color: #4b5563; }

/* 使用流程 */
.sm-steps {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  position: relative;
}
.sm-step {
  text-align: center;
  padding: 36px 26px;
  background: #fff;
  border-radius: var(--sm-radius);
  border: 1px solid var(--sm-line);
  box-shadow: var(--sm-shadow);
}
.sm-step .sm-num {
  width: 52px;
  height: 52px;
  margin: 0 auto 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, var(--sm-primary), var(--sm-accent));
}
.sm-step h3 {
  font-size: 19px;
  color: var(--sm-ink);
  margin-bottom: 10px;
}
.sm-step p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--sm-muted);
}

/* CTA 区 */
.sm-cta {
  position: relative;
  overflow: hidden;
  text-align: center;
  color: #fff;
  padding: 90px 24px 110px;
  background: linear-gradient(135deg, #4338ca 0%, #7c3aed 100%);
}
.sm-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(800px 300px at 50% 120%, rgba(255,255,255,0.18), transparent 60%);
  pointer-events: none;
}
.sm-cta h2 {
  position: relative;
  font-size: 38px;
  font-weight: 800;
  margin-bottom: 16px;
}
.sm-cta p {
  position: relative;
  font-size: 18px;
  color: #e9d5ff;
  margin-bottom: 36px;
}
.sm-cta .sm-btn-primary { color: #4338ca; }

/* 响应式 */
@media (max-width: 900px) {
  .sm-grid { grid-template-columns: repeat(2, 1fr); }
  .sm-steps { grid-template-columns: 1fr; }
  .sm-hero h1 { font-size: 48px; }
  .sm-hero .sm-sub { font-size: 18px; }
}
@media (max-width: 560px) {
  .sm-grid { grid-template-columns: 1fr; }
  .sm-hero { padding: 80px 20px 90px; }
  .sm-hero h1 { font-size: 38px; gap: 10px; }
  .sm-free-tag { font-size: 13px; padding: 6px 12px; letter-spacing: 1px; }
  .sm-section { padding: 60px 18px; }
  .sm-section-title { font-size: 28px; }
  .sm-cta h2 { font-size: 28px; }
}