:root{
  --sf-ink:#1f2a22;
  --sf-muted:#5b665e;
  --sf-brand:#4f6d58;
  --sf-accent:#d4a373;
  --sf-paper:#fbfaf7;
  --sf-soft:#f1f6f2;
  --sf-card:#ffffff;
  --sf-border:rgba(79,109,88,.16);
  --sf-shadow:0 18px 50px rgba(0,0,0,.08);
  --sf-radius:18px;
}

html{
  scroll-padding-top: 84px;
}

body{
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--sf-ink);
  background: var(--sf-paper);
  line-height: 1.85;
  letter-spacing: .2px;
}

.sf-navbar{
  background: rgba(251,250,247,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 10px 35px rgba(0,0,0,.06);
  padding: .85rem 0;
}

.sf-brand{
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--sf-brand) !important;
}

.sf-navlink{
  color: var(--sf-ink) !important;
  padding: .55rem 1rem !important;
  border-radius: 999px;
  transition: background-color .2s ease, color .2s ease;
}

.sf-navlink:hover{
  background: rgba(79,109,88,.08);
  color: var(--sf-brand) !important;
}

.sf-navlink.active{
  background: rgba(212,163,115,.16);
  color: var(--sf-ink) !important;
}

.sf-hero{
  min-height: 100vh;
  position: relative;
  padding-top: 84px;
  background:
    linear-gradient(180deg, rgba(0,0,0,.28), rgba(0,0,0,.14) 45%, rgba(0,0,0,.32)),
    url("../images/pic1-900.jpg");
  background-size: cover;
  background-position: center;
}

.sf-hero-fade{
  position: absolute;
  inset: auto 0 0 0;
  height: 140px;
  background: linear-gradient(180deg, rgba(251,250,247,0), rgba(251,250,247,1));
  pointer-events: none;
}

.sf-hero-title{
  letter-spacing: 6px;
  text-shadow: 0 10px 30px rgba(0,0,0,.25);
}

.sf-hero-subtitle{
  letter-spacing: 10px;
  text-shadow: 0 8px 26px rgba(0,0,0,.25);
  opacity: .95;
}

.sf-hero-badge{
  display: inline-flex;
  padding: .5rem 1.1rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.28);
  background: rgba(255,255,255,.12);
  color: rgba(255,255,255,.95);
  font-size: .95rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.sf-btn{
  border-radius: 999px;
  letter-spacing: 1px;
}

.sf-btn-outline{
  border-width: 2px;
}

.sf-section{
  position: relative;
}

.sf-section-light{
  background: var(--sf-paper);
}

.sf-section-soft{
  background: var(--sf-soft);
}

.sf-title{
  font-weight: 750;
  letter-spacing: 2px;
  color: var(--sf-brand);
}

.sf-lead{
  font-size: 1.1rem;
}

.sf-prose{
  max-width: 900px;
  color: var(--sf-muted);
  font-size: 1.05rem;
}

.sf-kicker{
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  color: var(--sf-brand);
  letter-spacing: 2px;
  font-weight: 700;
  font-size: .86rem;
  text-transform: uppercase;
}

.sf-card{
  background: var(--sf-card);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius);
  box-shadow: 0 12px 38px rgba(0,0,0,.05);
}

.sf-service-icon{
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(79,109,88,.10);
  color: var(--sf-brand);
  font-weight: 800;
  letter-spacing: 1px;
}

.sf-panel{
  border-radius: var(--sf-radius);
  border: 1px solid var(--sf-border);
  background:
    radial-gradient(1200px 400px at 20% 20%, rgba(212,163,115,.18), rgba(212,163,115,0)),
    radial-gradient(1000px 380px at 85% 70%, rgba(79,109,88,.14), rgba(79,109,88,0)),
    rgba(255,255,255,.7);
  box-shadow: 0 12px 40px rgba(0,0,0,.04);
}

.sf-panel-inner{
  padding: 1.35rem 1.5rem;
}

.sf-figure{
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.5);
  box-shadow: var(--sf-shadow);
  background: #fff;
  margin: 0;
}

.sf-img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: scale(1.01);
  transition: transform .45s ease;
}

.sf-figure:hover .sf-img{
  transform: scale(1.04);
}

.sf-caption{
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 14px;
  padding: .6rem .85rem;
  border-radius: 14px;
  background: rgba(251,250,247,.9);
  color: var(--sf-ink);
  font-size: .95rem;
  border: 1px solid rgba(79,109,88,.14);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.sf-transport-card{
  overflow: hidden;
}

.sf-transport-icon{
  width: 54px;
  height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 18px;
  background: rgba(79,109,88,.10);
  color: var(--sf-brand);
  flex-shrink: 0;
}

.sf-hint{
  padding: .9rem 1rem;
  border-radius: 16px;
  border: 1px dashed rgba(79,109,88,.28);
  background: rgba(241,246,242,.8);
}

.sf-hint-title{
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--sf-brand);
  margin-bottom: .25rem;
}

.sf-hint-text{
  color: var(--sf-muted);
}

.sf-footer{
  background: linear-gradient(180deg, rgba(79,109,88,1), rgba(47,78,56,1));
}

.sf-footer-divider{
  height: 1px;
  background: rgba(255,255,255,.18);
  max-width: 520px;
  margin: 1.4rem auto 1.1rem;
}

@media (max-width: 992px){
  .sf-hero-title{
    letter-spacing: 3px;
  }
  .sf-hero-subtitle{
    letter-spacing: 6px;
  }
}

@media (min-width: 992px){
  .sf-hero{
    background:
      linear-gradient(180deg, rgba(0,0,0,.28), rgba(0,0,0,.14) 45%, rgba(0,0,0,.32)),
      url("../images/pic1-1600.jpg");
    background-size: cover;
    background-position: center;
  }
}

@media (max-width: 768px){
  .sf-hero{
    background-attachment: scroll;
  }
}

@media (prefers-reduced-motion: reduce){
  *{
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}