/* 琼游万事通 — 海南全域旅游门户 */
:root {
  --ocean-deep: #0a3d62;
  --ocean-mid: #0d9488;
  --ocean-bright: #2dd4bf;
  --sunset: #f97316;
  --sunset-soft: #fdba74;
  --sand: #fef3c7;
  --sand-dim: #fde68a;
  --palm: #166534;
  --bg: #f8faf9;
  --bg-card: #ffffff;
  --text: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --line: rgba(15, 23, 42, 0.08);
  --shadow: 0 24px 48px rgba(10, 61, 98, 0.12);
  --shadow-soft: 0 8px 24px rgba(10, 61, 98, 0.08);
  --radius: 16px;
  --radius-lg: 24px;
  --font-display: "Noto Serif SC", "Songti SC", serif;
  --font-body: "Noto Sans SC", "PingFang SC", sans-serif;
  --max: 1120px;
  --nav-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.wrap {
  width: min(var(--max), calc(100% - 2.5rem));
  margin-inline: auto;
}

/* ── 导航 ── */
.site-nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background 0.35s, box-shadow 0.35s, backdrop-filter 0.35s;
}

.site-nav.is-scrolled {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--line);
}

.site-nav__inner {
  width: min(var(--max), calc(100% - 2.5rem));
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-nav__brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}

.site-nav__brand img {
  height: 52px;
  width: auto;
  max-width: 200px;
  border-radius: 0;
  object-fit: contain;
  object-position: left center;
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.site-nav__links a:hover { color: var(--ocean-mid); }

.site-nav__cta {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1.25rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--ocean-mid), var(--ocean-deep));
  color: #fff;
  font-size: 0.88rem;
  font-weight: 500;
  box-shadow: 0 8px 20px rgba(13, 148, 136, 0.35);
  transition: transform 0.2s, box-shadow 0.2s;
}

.site-nav__cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(13, 148, 136, 0.4);
}

.site-nav__toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  background: rgba(255,255,255,0.2);
  border-radius: 10px;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.site-nav__toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}

.site-nav.is-open .site-nav__toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-nav.is-open .site-nav__toggle span:nth-child(2) { opacity: 0; }
.site-nav.is-open .site-nav__toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  position: fixed;
  inset: var(--nav-h) 0 0;
  z-index: 99;
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(16px);
  padding: 1.5rem;
  flex-direction: column;
  gap: 0.25rem;
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, transform 0.3s;
}

.mobile-menu.is-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu a {
  padding: 0.85rem 0;
  font-size: 1.05rem;
  border-bottom: 1px solid var(--line);
  color: var(--text-secondary);
}

.mobile-menu a:last-child {
  margin-top: 0.5rem;
  border: none;
  text-align: center;
  background: linear-gradient(135deg, var(--ocean-mid), var(--ocean-deep));
  color: #fff;
  border-radius: 999px;
  padding: 0.85rem;
}

/* ── Hero ── */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 3rem) 0 4rem;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 85% 15%, rgba(249, 115, 22, 0.35), transparent 55%),
    radial-gradient(ellipse 60% 50% at 10% 80%, rgba(45, 212, 191, 0.25), transparent 50%),
    radial-gradient(ellipse 80% 60% at 50% 100%, rgba(13, 148, 136, 0.2), transparent 55%),
    linear-gradient(165deg, #0a3d62 0%, #0f766e 42%, #134e4a 68%, #0a3d62 100%);
  z-index: 0;
}

.hero__wave {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 120px;
  background: var(--bg);
  clip-path: ellipse(75% 100% at 50% 100%);
  z-index: 1;
}

.hero__grain {
  position: absolute;
  inset: 0;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  width: min(var(--max), calc(100% - 2.5rem));
  margin-inline: auto;
  color: #fff;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(8px);
  animation: fadeUp 0.8s ease both;
}

.hero__badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--sunset-soft);
  box-shadow: 0 0 8px var(--sunset);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: 0.02em;
  max-width: 14ch;
  margin-bottom: 1.25rem;
  animation: fadeUp 0.8s 0.1s ease both;
}

.hero__lead {
  font-size: clamp(1rem, 2vw, 1.15rem);
  line-height: 1.85;
  color: rgba(255,255,255,0.88);
  max-width: 42rem;
  margin-bottom: 2.25rem;
  animation: fadeUp 0.8s 0.2s ease both;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  animation: fadeUp 0.8s 0.3s ease both;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.85rem 1.65rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

.btn--primary {
  background: linear-gradient(135deg, var(--sunset), #ea580c);
  color: #fff;
  box-shadow: 0 12px 32px rgba(249, 115, 22, 0.4);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(249, 115, 22, 0.45);
}

.btn--ghost {
  background: rgba(255,255,255,0.12);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.28);
  backdrop-filter: blur(8px);
}

.btn--ghost:hover {
  background: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.15);
  animation: fadeUp 0.8s 0.45s ease both;
}

.hero__stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.hero__stat span {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.7);
}

/* ── 通用区块 ── */
.section {
  padding: 5rem 0;
}

.section--alt {
  background: linear-gradient(180deg, #fff 0%, var(--bg) 100%);
}

.section__head {
  text-align: center;
  max-width: 36rem;
  margin: 0 auto 3rem;
}

.section__kicker {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ocean-mid);
  margin-bottom: 0.75rem;
}

.section__head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.35rem);
  font-weight: 600;
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

.section__head p {
  color: var(--text-secondary);
  font-size: 1.02rem;
}

/* ── 服务卡片 ── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.service-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  transition: transform 0.3s, box-shadow 0.3s;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--ocean-mid), var(--sunset));
  opacity: 0;
  transition: opacity 0.3s;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.service-card:hover::before { opacity: 1; }

.service-card__icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
  background: linear-gradient(135deg, rgba(13,148,136,0.12), rgba(249,115,22,0.1));
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-bottom: 0.6rem;
}

.service-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── 目的地 ── */
.dest-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
}

.dest-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  color: #fff;
  transition: transform 0.35s;
}

.dest-card:hover { transform: scale(1.02); }

.dest-card__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  transition: transform 0.5s;
}

.dest-card:hover .dest-card__bg { transform: scale(1.06); }

.dest-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,61,98,0.85) 0%, rgba(10,61,98,0.2) 55%, transparent 100%);
  z-index: 1;
}

.dest-card__body { position: relative; z-index: 2; }

.dest-card__tag {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.85;
  margin-bottom: 0.35rem;
}

.dest-card h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin-bottom: 0.35rem;
}

.dest-card p {
  font-size: 0.85rem;
  opacity: 0.88;
  line-height: 1.5;
}

.dest-card--lg { grid-column: span 7; min-height: 320px; }
.dest-card--sm { grid-column: span 5; }
.dest-card--md { grid-column: span 6; }

.dest-card--sanya .dest-card__bg {
  background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 40%, #f97316 100%);
}
.dest-card--haikou .dest-card__bg {
  background: linear-gradient(135deg, #059669 0%, #0d9488 50%, #134e4a 100%);
}
.dest-card--rainforest .dest-card__bg {
  background: linear-gradient(135deg, #166534 0%, #15803d 40%, #065f46 100%);
}
.dest-card--beach .dest-card__bg {
  background: linear-gradient(135deg, #38bdf8 0%, #fde68a 60%, #fb923c 100%);
}

/* ── 体验双栏 ── */
.experience {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: stretch;
}

.experience-card {
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.experience-card--leisure {
  background: linear-gradient(145deg, #fef3c7 0%, #fde68a 30%, #fdba74 100%);
  color: #78350f;
}

.experience-card--adventure {
  background: linear-gradient(145deg, #064e3b 0%, #065f46 40%, #134e4a 100%);
  color: #ecfdf5;
}

.experience-card__emoji {
  font-size: 3rem;
  margin-bottom: 1rem;
  line-height: 1;
}

.experience-card h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: 0.65rem;
}

.experience-card p {
  font-size: 0.95rem;
  line-height: 1.75;
  opacity: 0.9;
}

.experience-card__deco {
  position: absolute;
  top: -20px;
  right: -20px;
  font-size: 8rem;
  opacity: 0.12;
  pointer-events: none;
  line-height: 1;
}

/* ── 优势条 ── */
.features-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.feature-pill {
  text-align: center;
  padding: 1.5rem 1rem;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.feature-pill__num {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--ocean-mid);
  margin-bottom: 0.35rem;
}

.feature-pill span {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* ── CTA ── */
.cta-band {
  margin: 0 1.25rem 5rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--ocean-deep) 0%, #0f766e 50%, var(--ocean-mid) 100%);
  padding: 3.5rem 2rem;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.cta-band::before {
  content: "";
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(249,115,22,0.25), transparent 70%);
  top: -200px;
  right: -100px;
  pointer-events: none;
}

.cta-band h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  margin-bottom: 0.75rem;
  position: relative;
}

.cta-band p {
  color: rgba(255,255,255,0.85);
  max-width: 32rem;
  margin: 0 auto 1.75rem;
  position: relative;
}

.cta-band .hero__actions {
  justify-content: center;
  position: relative;
}

/* ── 联系 ── */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.contact-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.75rem;
  border: 1px solid var(--line);
  text-align: center;
}

.contact-card__label {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--ocean-mid);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.contact-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
  word-break: break-all;
}

.contact-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* ── 页脚 ── */
.site-footer {
  background: var(--ocean-deep);
  color: rgba(255,255,255,0.75);
  padding: 3rem 0 1.5rem;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.site-footer__brand {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: #fff;
  margin-bottom: 0.75rem;
}

.site-footer__desc {
  font-size: 0.9rem;
  line-height: 1.75;
  max-width: 28rem;
}

.site-footer h4 {
  color: #fff;
  font-size: 0.88rem;
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

.site-footer ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.site-footer a {
  font-size: 0.88rem;
  transition: color 0.2s;
}

.site-footer a:hover { color: var(--ocean-bright); }

.site-footer__bottom {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.12);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.82rem;
}

/* ── 动画 ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ── 响应式 ── */
@media (max-width: 960px) {
  .services-grid { grid-template-columns: 1fr; }
  .dest-grid { grid-template-columns: 1fr; }
  .dest-card--lg, .dest-card--sm, .dest-card--md { grid-column: span 1; min-height: 200px; }
  .experience { grid-template-columns: 1fr; }
  .features-row { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .site-footer__grid { grid-template-columns: 1fr; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .site-nav__links { display: none; }
  .site-nav__toggle { display: flex; }
  .mobile-menu { display: flex; }
  .site-nav:not(.is-scrolled) { color: #fff; }
  .site-nav:not(.is-scrolled) .site-nav__cta {
    background: rgba(255,255,255,0.15);
    box-shadow: none;
    border: 1px solid rgba(255,255,255,0.25);
  }
}