/* === 九寨沟门票预约 · 设计系统 === */
:root {
  --bg-deep: #0a1620;
  --bg-card: #112233;
  --bg-card-hover: #172a3a;
  --bg-input: #0d1a28;
  --text-primary: #e8f0f0;
  --text-secondary: #b8c8c8;
  --text-gray: #7a908c;
  --text-dim: #557068;

  /* 九寨水色 */
  --lake-blue: #0d6e6e;
  --lake-deep: #095555;
  --jade-green: #2d8b57;
  --jade-light: #3aa672;
  --gold-jiu: #c8a039;
  --gold-light: #e0c060;
  --autumn-red: #d47244;
  --autumn-orange: #e89455;
  --water-cyan: #1abc9c;

  --btn-primary: #0d6e6e;
  --btn-primary-hover: #0f8585;
  --btn-outline: #c8a039;
  --btn-outline-hover: #e0c060;

  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
  --shadow-hover: 0 8px 40px rgba(13,110,110,0.12);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.7; overflow-x: hidden;
}
a { color: var(--gold-light); text-decoration: none; }
a:hover { color: var(--gold-jiu); }
img { max-width: 100%; height: auto; display: block; }

/* === Navigation === */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(10,22,32,0.92); backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(13,110,110,0.2);
}
.nav-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; height: 64px; }
.nav-logo { display: flex; align-items: center; gap: 8px; color: var(--text-primary); text-decoration: none; font-weight: 700; font-size: 1.1rem; }
.nav-logo-icon { width: 38px; height: 38px; border-radius: 8px; background: linear-gradient(135deg, var(--lake-blue), var(--jade-green)); display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 900; font-size: 0.85rem; }
.nav-logo span { color: var(--text-primary); }
.nav-logo small { color: var(--text-gray); font-size: 0.7rem; font-weight: 400; }
.nav-phone { display: flex; align-items: center; gap: 4px; color: var(--gold-light); font-size: 0.85rem; font-weight: 600; white-space: nowrap; }
.nav-wx-badge { display: inline-flex; align-items: center; gap: 5px; background: rgba(26,188,156,0.1); border: 1px solid rgba(26,188,156,0.2); color: var(--water-cyan) !important; padding: 6px 14px; border-radius: 20px; font-size: 0.8rem !important; font-weight: 600; margin-right: 4px; white-space: nowrap; transition: var(--transition); }
.nav-wx-badge:hover { background: rgba(26,188,156,0.18) !important; transform: translateY(-1px); color: #1dd1a1 !important; }
.nav-links { display: flex; list-style: none; align-items: center; gap: 4px; }
.nav-links a { color: var(--text-secondary); padding: 8px 14px; border-radius: var(--radius-sm); font-size: 0.9rem; font-weight: 500; transition: var(--transition); white-space: nowrap; }
.nav-links a:hover, .nav-links a.active { color: var(--text-primary); background: rgba(13,110,110,0.12); }
.nav-links a.active { color: var(--water-cyan); }
.nav-cta { background: var(--btn-primary) !important; color: #fff !important; font-weight: 700 !important; margin-left: 6px; }
.nav-cta:hover { background: var(--btn-primary-hover) !important; }
.nav-toggle-cb { display: none; }
.nav-toggle { display: none; }

/* === Hero === */
.hero {
  position: relative; overflow: hidden; padding: 80px 20px 60px; text-align: center;
  background: linear-gradient(160deg, var(--bg-deep) 0%, #0d2028 30%, rgba(13,110,110,0.1) 60%, rgba(200,160,57,0.06) 100%);
}
.hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at 50% 30%, rgba(13,110,110,0.08) 0%, transparent 60%); pointer-events: none; }
.hero-content { max-width: 800px; margin: 0 auto; position: relative; z-index: 1; }
.hero h1 { font-size: 2.8rem; font-weight: 900; line-height: 1.2; margin-bottom: 16px; background: linear-gradient(135deg, #e8f0f0, var(--water-cyan)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero h1 .sub { display: block; font-size: 1.05rem; font-weight: 600; background: none; -webkit-text-fill-color: var(--gold-light); margin-top: 8px; }
.hero p { font-size: 1.05rem; color: var(--text-secondary); max-width: 640px; margin: 0 auto 28px; }
.hero-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 28px; }
.hero-note { font-size: 0.85rem; color: var(--text-gray); margin-top: 16px; }

/* === Buttons === */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 12px 28px; border-radius: var(--radius); font-weight: 600; font-size: 0.95rem; cursor: pointer; transition: var(--transition); border: none; text-decoration: none; }
.btn-primary { background: var(--btn-primary); color: #fff; }
.btn-primary:hover { background: var(--btn-primary-hover); transform: translateY(-1px); box-shadow: 0 4px 20px rgba(13,110,110,0.3); color: #fff; }
.btn-outline { background: transparent; border: 1.5px solid var(--btn-outline); color: var(--btn-outline); }
.btn-outline:hover { background: var(--btn-outline); color: var(--bg-deep); }
.btn-gold { background: linear-gradient(135deg, var(--gold-jiu), var(--gold-light)); color: var(--bg-deep); font-weight: 700; }
.btn-gold:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(200,160,57,0.3); color: var(--bg-deep); }

/* === Sections === */
.section { padding: 64px 20px; }
.section-dark { background: var(--bg-card); }
.section-header { text-align: center; margin-bottom: 48px; }
.section-header h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 12px; background: linear-gradient(135deg, var(--text-primary), var(--water-cyan)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.section-header p { color: var(--text-gray); font-size: 1rem; }

/* === Features Grid === */
.features-grid { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.feature-card { background: var(--bg-card); border: 1px solid rgba(255,255,255,0.04); border-radius: var(--radius); padding: 32px 24px; transition: var(--transition); }
.feature-card:hover { border-color: rgba(13,110,110,0.25); transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.feature-icon { font-size: 2rem; margin-bottom: 14px; }
.feature-card h3 { font-size: 1.05rem; margin-bottom: 8px; color: var(--text-primary); }
.feature-card p { font-size: 0.9rem; color: var(--text-gray); line-height: 1.6; }

/* === Scenic Cards === */
.scenic-grid { max-width: 1000px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.scenic-card { background: var(--bg-card); border: 1px solid rgba(255,255,255,0.05); border-radius: var(--radius-lg); overflow: hidden; transition: var(--transition); }
.scenic-card:hover { border-color: rgba(13,110,110,0.3); transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.scenic-card-header { padding: 28px 24px 20px; text-align: center; border-bottom: 1px solid rgba(255,255,255,0.06); }
.scenic-card-header h3 { font-size: 1.4rem; margin: 8px 0 4px; }
.scenic-card-body { padding: 20px 24px; }
.scenic-card-body ul { list-style: none; }
.scenic-card-body li { font-size: 0.88rem; color: var(--text-secondary); padding: 4px 0; display: flex; align-items: flex-start; gap: 6px; }
.scenic-card-footer { padding: 12px 24px 24px; text-align: center; display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* === Steps === */
.steps-container { max-width: 900px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 20px; }
.step-card { background: var(--bg-card); border: 1px solid rgba(255,255,255,0.04); border-radius: var(--radius); padding: 28px 20px; text-align: center; transition: var(--transition); }
.step-card:hover { border-color: rgba(13,110,110,0.2); }
.step-number { width: 42px; height: 42px; margin: 0 auto 14px; border-radius: 50%; background: linear-gradient(135deg, var(--lake-blue), var(--jade-green)); color: #fff; font-weight: 900; font-size: 1.1rem; display: flex; align-items: center; justify-content: center; }
.step-card h3 { font-size: 0.95rem; margin-bottom: 6px; color: var(--text-primary); }
.step-card p { font-size: 0.83rem; color: var(--text-gray); }

/* === Alert Box === */
.alert-box { max-width: 860px; margin: 0 auto 40px; padding: 20px 24px; background: rgba(200,160,57,0.08); border: 1px solid rgba(200,160,57,0.2); border-radius: var(--radius); }
.alert-box h3 { font-size: 1rem; color: var(--gold-light); margin-bottom: 10px; }
.alert-box li { font-size: 0.88rem; color: var(--text-secondary); padding: 4px 0; list-style: disc; margin-left: 18px; }

/* === Ticket Cards === */
.ticket-grid { max-width: 900px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.ticket-card { background: var(--bg-card); border: 1px solid rgba(255,255,255,0.05); border-radius: var(--radius-lg); overflow: hidden; transition: var(--transition); }
.ticket-card:hover { border-color: rgba(13,110,110,0.25); transform: translateY(-2px); }
.ticket-card-header { padding: 24px 20px 16px; text-align: center; border-bottom: 1px solid rgba(255,255,255,0.06); }
.ticket-card-header .emoji { font-size: 1.8rem; }
.ticket-card-header h3 { font-size: 1.2rem; margin: 4px 0; }
.ticket-card-header .season { font-size: 0.8rem; color: var(--text-gray); }
.ticket-card-body { padding: 16px 20px; }
.ticket-card-body ul { list-style: none; }
.ticket-card-body li { font-size: 0.85rem; color: var(--text-secondary); padding: 3px 0; }
.ticket-card-body li::before { content: '•'; color: var(--lake-blue); margin-right: 6px; }
.ticket-card-footer { padding: 12px 20px 20px; text-align: center; }
.ticket-card-footer .price-note { font-size: 0.78rem; color: var(--text-dim); margin-bottom: 10px; }

/* === FAQ === */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { background: var(--bg-card); border: 1px solid rgba(255,255,255,0.04); border-radius: var(--radius); margin-bottom: 12px; overflow: hidden; }
.faq-question { padding: 16px 20px; font-weight: 600; font-size: 0.95rem; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.faq-question:hover { color: var(--water-cyan); }
.faq-answer { padding: 0 20px 16px; display: block; }
.faq-answer-inner { font-size: 0.88rem; color: var(--text-gray); line-height: 1.7; }

/* === Trust Grid === */
.trust-grid { max-width: 1000px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.trust-card { background: var(--bg-card); border: 1px solid rgba(255,255,255,0.04); border-radius: var(--radius); padding: 28px 24px; }
.trust-card h3 { font-size: 1rem; margin-bottom: 8px; color: var(--text-primary); }
.trust-card p { font-size: 0.88rem; color: var(--text-gray); line-height: 1.6; }

/* === Page Hero === */
.page-hero { text-align: center; padding: 56px 20px 40px; background: linear-gradient(160deg, var(--bg-deep) 0%, rgba(13,110,110,0.1) 100%); border-bottom: 1px solid rgba(255,255,255,0.04); }
.page-hero h1 { font-size: 2rem; font-weight: 900; margin-bottom: 10px; background: linear-gradient(135deg, var(--text-primary), var(--water-cyan)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.page-hero p { color: var(--text-gray); font-size: 1rem; }

/* === Content Block === */
.content-block { max-width: 860px; margin: 0 auto; padding: 20px; }
.content-block h2 { font-size: 1.3rem; font-weight: 700; margin: 32px 0 12px; color: var(--water-cyan); }
.content-block h3 { font-size: 1.05rem; font-weight: 600; margin: 20px 0 8px; color: var(--text-primary); }
.content-block p { font-size: 0.93rem; color: var(--text-secondary); margin-bottom: 10px; line-height: 1.75; }
.content-block ul { list-style: none; margin: 8px 0 16px; }
.content-block li { font-size: 0.9rem; color: var(--text-secondary); padding: 5px 0; display: flex; align-items: flex-start; gap: 8px; }
.content-block li::before { content: '◆'; color: var(--lake-blue); font-size: 0.6rem; margin-top: 5px; }
.divider { max-width: 860px; margin: 0 auto; height: 1px; background: linear-gradient(90deg, transparent, rgba(13,110,110,0.3), transparent); }

/* === Inline QR === */
.inline-qr-block { max-width: 420px; margin: 0 auto; padding: 24px; background: var(--bg-card); border-radius: var(--radius-lg); text-align: center; border: 1px solid rgba(255,255,255,0.04); }
.inline-qr-block img { margin: 0 auto; border-radius: var(--radius-sm); }
.qr-badge { display: inline-block; padding: 3px 12px; border-radius: 20px; background: rgba(26,188,156,0.12); color: var(--water-cyan); font-size: 0.75rem; font-weight: 700; }
.qr-hint-tag { font-size: 0.8rem; color: var(--text-gray); }

/* === WX Guide Card === */
.wx-guide-section { max-width: 860px; margin: 0 auto; text-align: center; padding: 32px 20px; }
.wx-guide-card { display: inline-flex; align-items: center; gap: 16px; background: linear-gradient(135deg, rgba(26,188,156,0.05), rgba(26,188,156,0.02)); border: 1px solid rgba(26,188,156,0.15); border-radius: var(--radius-lg); padding: 20px 28px; transition: var(--transition); }
.wx-guide-card:hover { border-color: rgba(26,188,156,0.3); transform: translateY(-1px); }
.wx-guide-icon { font-size: 2rem; }
.wx-guide-text { text-align: left; }
.wx-guide-text strong { color: var(--water-cyan); font-size: 1.05rem; display: block; margin-bottom: 2px; }
.wx-guide-text small { color: var(--text-gray); font-size: 0.82rem; }
.wx-guide-arrow { font-size: 1.4rem; color: var(--water-cyan); opacity: 0.6; }

/* === Hero WX Bar === */
.wx-hero-bar { display: inline-flex; align-items: center; gap: 10px; margin-top: 16px; padding: 10px 22px; background: rgba(26,188,156,0.07); border: 1px solid rgba(26,188,156,0.18); border-radius: 30px; font-size: 0.88rem; color: var(--water-cyan); font-weight: 600; }
.wx-hero-bar .wx-hero-badge { background: var(--water-cyan); color: #fff; padding: 2px 10px; border-radius: 12px; font-size: 0.72rem; font-weight: 700; }

/* === Guide Section === */
.guide-section { max-width: 860px; margin: 0 auto; padding: 40px 20px; }
.guide-section h2 { font-size: 1.4rem; font-weight: 700; margin-bottom: 16px; padding-bottom: 10px; border-bottom: 1px solid rgba(255,255,255,0.06); color: var(--water-cyan); }
.guide-section h3 { font-size: 1.1rem; font-weight: 600; margin: 24px 0 8px; color: var(--text-primary); }
.guide-section p, .guide-section li { font-size: 0.93rem; color: var(--text-secondary); margin-bottom: 8px; }
.guide-section ul { padding-left: 20px; margin: 8px 0 16px; }
.guide-section .tip-box { background: var(--bg-card); border-left: 3px solid var(--water-cyan); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: 16px 20px; margin: 16px 0; font-size: 0.9rem; color: var(--text-secondary); }

/* === Season Cards === */
.season-grid { max-width: 900px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.season-card { background: var(--bg-card); border: 1px solid rgba(255,255,255,0.04); border-radius: var(--radius); padding: 24px 18px; text-align: center; transition: var(--transition); }
.season-card:hover { border-color: rgba(13,110,110,0.2); }
.season-card .emoji { font-size: 2.2rem; margin-bottom: 8px; }
.season-card h4 { font-size: 0.95rem; color: var(--water-cyan); margin-bottom: 6px; }
.season-card p { font-size: 0.82rem; color: var(--text-gray); }

/* === Footer === */
.site-footer { background: var(--bg-card); border-top: 1px solid rgba(255,255,255,0.05); padding: 40px 20px 24px; }
.footer-grid { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 32px; }
.footer-col h4 { font-size: 0.95rem; margin-bottom: 12px; color: var(--text-primary); }
.footer-col p, .footer-col a { font-size: 0.85rem; color: var(--text-gray); display: block; margin-bottom: 6px; }
.footer-col a:hover { color: var(--water-cyan); }
.footer-bottom { max-width: 1100px; margin: 32px auto 0; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.05); text-align: center; }
.footer-bottom p, .footer-bottom small { font-size: 0.78rem; color: #8a9488; line-height: 1.6; }
.footer-bottom a { color: var(--text-gray); }

/* === WX Float Popup === */
.wx-float { position: fixed; right: 16px; bottom: 120px; z-index: 999; display: flex; flex-direction: column; gap: 10px; }
.wx-float-btn { width: 50px; height: 50px; border-radius: 50%; background: linear-gradient(135deg, var(--lake-blue), var(--jade-green)); color: #fff; font-size: 1.3rem; display: flex; align-items: center; justify-content: center; cursor: pointer; border: none; box-shadow: 0 4px 16px rgba(13,110,110,0.35); transition: var(--transition); }
.wx-float-btn:hover { transform: scale(1.08); }
.wx-float-btn.phone { background: linear-gradient(135deg, var(--water-cyan), #16a085); }
.wx-float-label { position: absolute; right: 58px; top: 50%; transform: translateY(-50%); background: var(--bg-card); color: var(--text-primary); padding: 6px 12px; border-radius: var(--radius-sm); font-size: 0.75rem; white-space: nowrap; opacity: 0; pointer-events: none; transition: opacity 0.2s; }
.wx-float-btn:hover .wx-float-label { opacity: 1; }
.wx-popup-overlay { display: none; position: fixed; inset: 0; z-index: 10000; background: rgba(0,0,0,0.7); backdrop-filter: blur(4px); align-items: center; justify-content: center; }
.wx-popup-overlay.active { display: flex; }
.wx-popup { background: var(--bg-card); border: 1px solid rgba(200,160,57,0.2); border-radius: var(--radius-lg); padding: 36px 28px 24px; text-align: center; max-width: 360px; width: 90%; position: relative; }
.wx-popup-close { position: absolute; top: 10px; right: 14px; background: none; border: none; font-size: 1.3rem; color: var(--text-gray); cursor: pointer; }
.wx-popup-close:hover { color: var(--text-primary); }
.wx-popup img { width: 180px; height: 180px; margin: 0 auto 16px; border-radius: var(--radius-sm); }
.wx-popup h3 { font-size: 1.05rem; margin-bottom: 6px; background: linear-gradient(135deg, var(--gold-light), var(--water-cyan)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.wx-popup p { font-size: 0.85rem; color: var(--text-gray); }
.wx-popup .wx-popup-search { margin-top: 12px; padding: 8px 16px; background: rgba(26,188,156,0.08); border-radius: var(--radius-sm); font-size: 0.82rem; color: var(--text-secondary); }
.wx-popup .wx-popup-search strong { color: var(--water-cyan); }

/* === Animations === */
@keyframes floatDrift { 0%,100%{transform:translateY(0) rotate(0deg);opacity:0.5;} 50%{transform:translateY(-12px) rotate(3deg);opacity:0.8;} }
.hero-particle { position:absolute;width:8px;height:8px;border-radius:50%;background:var(--water-cyan);opacity:0.5;animation:floatDrift 4s ease-in-out infinite; }

/* === Responsive === */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; flex-direction: column; gap: 5px; cursor: pointer; }
  .nav-toggle span { width: 24px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: var(--transition); }
  .nav-toggle-cb:checked ~ .nav-toggle span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
  .nav-toggle-cb:checked ~ .nav-toggle span:nth-child(2) { opacity: 0; }
  .nav-toggle-cb:checked ~ .nav-toggle span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }
  .nav-toggle-cb:checked ~ .nav-links { display: flex; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: rgba(10,22,32,0.98); padding: 12px 20px; border-bottom: 1px solid rgba(13,110,110,0.2); }
  .nav-phone { display: none; }
  .hero h1 { font-size: 1.8rem; }
  .hero p { font-size: 0.9rem; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .btn { width: 100%; justify-content: center; max-width: 300px; }
  .section { padding: 40px 16px; }
  .section-header h2 { font-size: 1.4rem; }
  .features-grid, .scenic-grid, .ticket-grid, .steps-container, .trust-grid, .season-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .wx-float { right: 8px; bottom: 80px; }
  .wx-float-btn { width: 44px; height: 44px; }
  .page-hero { padding: 40px 16px 28px; }
  .page-hero h1 { font-size: 1.5rem; }
  .guide-section, .content-block { padding: 20px 16px; }
  .nav-wx-badge { font-size: 0.72rem !important; padding: 4px 10px; gap: 3px; }
  .wx-hero-bar { flex-wrap: wrap; justify-content: center; font-size: 0.78rem; text-align: center; padding: 8px 14px; }
  .wx-hero-bar .wx-hero-badge { font-size: 0.68rem; }
  .wx-guide-card { flex-direction: column; text-align: center; padding: 16px 20px; }
  .wx-guide-text { text-align: center; }
  .wx-guide-arrow { display: none; }
}