/* 云途包机 - 主样式: 美观/时尚/高科技 */
:root{
  --brand:#0b3d91;          /* 深海蓝 */
  --brand-2:#1a73e8;
  --accent:#00d1c1;         /* 科技青 */
  --accent-2:#6c5ce7;
  --ink:#0d1b2a;
  --ink-2:#33475b;
  --muted:#7b8ca3;
  --line:#e3e9f2;
  --bg:#f4f7fc;
  --card:#ffffff;
  --ok:#12b76a;
  --warn:#f79009;
  --err:#f04438;
  --radius:16px;
  --shadow:0 10px 30px rgba(13,27,42,.08);
  --shadow-lg:0 20px 60px rgba(13,27,42,.16);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
img{max-width:100%;height:auto}
button,a,.btn{-webkit-tap-highlight-color:transparent;touch-action:manipulation}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--ink); background:var(--bg); line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
.container{max-width:1180px;margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.85);backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#fff;font-size:22px;box-shadow:0 8px 20px rgba(26,115,232,.35);
}
.brand-text strong{display:block;font-size:18px;letter-spacing:.5px}
.brand-text small{color:var(--muted);font-size:12px}
.main-nav{display:flex;align-items:center;gap:26px;font-weight:600;color:var(--ink-2)}
.main-nav a{position:relative;padding:4px 0}
.main-nav a:hover{color:var(--brand-2)}
.nav-cta{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#fff!important;padding:10px 18px;border-radius:999px;font-size:14px;
  box-shadow:0 8px 20px rgba(26,115,232,.3);
}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:radial-gradient(1200px 500px at 10% -10%,rgba(0,209,193,.35),transparent 60%),
             radial-gradient(900px 500px at 90% 0%,rgba(108,92,231,.5),transparent 55%),
             linear-gradient(135deg,#0b3d91,#123a7a 45%,#6c5ce7);
}
.hero::after{
  content:"";position:absolute;inset:0;opacity:.15;
  background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:48px 48px;pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding:64px 0 96px;text-align:center}
.hero h1{font-size:44px;margin:0 0 12px;letter-spacing:1px;line-height:1.2}
.hero p.sub{font-size:18px;opacity:.92;margin:0 0 8px}
.hero .badges{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:22px}
.badge{
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  padding:8px 16px;border-radius:999px;font-size:14px;backdrop-filter:blur(6px);
}

/* ---------- Search card ---------- */
.search-wrap{position:relative;z-index:3;margin-top:-58px}
.search-card{
  background:var(--card);border-radius:22px;box-shadow:var(--shadow-lg);
  padding:26px;border:1px solid var(--line);
}
.search-grid{display:grid;grid-template-columns:1.2fr 1.2fr 1fr .7fr auto;gap:14px;align-items:end}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:12px;font-weight:700;color:var(--muted);letter-spacing:.5px;text-transform:uppercase}
.field select,.field input{
  height:52px;border:1px solid var(--line);border-radius:12px;padding:0 14px;
  font-size:16px;background:#fbfdff;color:var(--ink);outline:none;transition:.2s;
  -webkit-appearance:none;appearance:none;
}
.field select{background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns=\'http://www.w3.org/2000/svg\' width=\'14\' height=\'14\' viewBox=\'0 0 24 24\' fill=\'none\' stroke=\'%237b8ca3\' stroke-width=\'3\'%3E%3Cpath d=\'M6 9l6 6 6-6\'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:38px}
.field select:focus,.field input:focus{border-color:var(--brand-2);box-shadow:0 0 0 4px rgba(26,115,232,.12);background:#fff}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:50px;height:auto;padding:0 26px;border:none;border-radius:12px;cursor:pointer;
  font-size:16px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 10px 24px rgba(26,115,232,.32);transition:.2s;
}
.btn:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(26,115,232,.4)}
.btn.accent{background:linear-gradient(135deg,#00b3a4,var(--accent));box-shadow:0 10px 24px rgba(0,209,193,.35)}
.btn.block{width:100%}
.btn.ghost{background:#fff;color:var(--brand-2);border:1px solid var(--line);box-shadow:none}
.btn.sm{min-height:44px;height:auto;padding:0 16px;font-size:15px}

/* ---------- Sections ---------- */
.section{padding:56px 0}
.section-title{font-size:26px;margin:0 0 6px}
.section-sub{color:var(--muted);margin:0 0 28px}
.grid{display:grid;gap:20px}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}
.feature{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);transition:.25s}
.feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#d6e2f5}
.feature .ico{font-size:30px;margin-bottom:10px}
.feature h3{margin:0 0 6px;font-size:18px}
.feature p{margin:0;color:var(--muted);font-size:14px}

.route-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:6px;transition:.25s}
.route-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.route-card .pair{font-size:18px;font-weight:800;display:flex;align-items:center;gap:8px}
.route-card .pair .arrow{color:var(--accent)}
.route-card .meta{font-size:13px;color:var(--muted)}
.route-card .go{margin-top:8px;color:var(--brand-2);font-weight:700;font-size:14px}

/* ---------- Flight result list ---------- */
.result-head{background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:16px 22px;margin-bottom:18px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.flight-card{background:#fff;border:1px solid var(--line);border-radius:18px;
  box-shadow:var(--shadow);margin-bottom:16px;overflow:hidden;transition:.25s}
.flight-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.flight-row{display:grid;grid-template-columns:1.4fr 1.1fr 1fr auto;gap:18px;align-items:center;padding:22px}
.flight-time{display:flex;align-items:center;gap:14px}
.flight-time .t{font-size:24px;font-weight:800}
.flight-time .ap{color:var(--muted);font-size:13px;display:block;font-weight:500}
.flight-time .line{flex:1;position:relative;height:2px;background:var(--line);min-width:60px}
.flight-time .line::after{content:"✈";position:absolute;right:-4px;top:-11px;color:var(--brand-2)}
.flight-info .fn{font-weight:800;font-size:15px}
.flight-info .al{color:var(--muted);font-size:13px}
.cabin-pill{display:flex;justify-content:space-between;gap:12px;padding:8px 12px;
  border:1px solid var(--line);border-radius:12px;margin-top:6px;font-size:14px}
.cabin-pill .p{font-weight:800;color:var(--err);white-space:nowrap}
.price-cta .p{font-size:26px;font-weight:900;color:var(--err)}
.price-cta .p small{font-size:14px;font-weight:600}
.price-cta{text-align:right}

/* ---------- Forms ---------- */
.panel{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:26px}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.form-grid .full{grid-column:1/-1}
.input,textarea.input{border:1px solid var(--line);border-radius:12px;padding:13px 14px;
  font-size:16px;width:100%;background:#fbfdff;outline:none;transition:.2s;
  -webkit-appearance:none;appearance:none}
.input:focus{border-color:var(--brand-2);box-shadow:0 0 0 4px rgba(26,115,232,.12);background:#fff}
label.lbl{font-size:13px;font-weight:700;color:var(--ink-2);margin-bottom:6px;display:block}
.pax-row{display:grid;grid-template-columns:1fr 1.4fr;gap:12px;margin-bottom:10px}

/* ---------- Summary / steps ---------- */
.steps{display:flex;gap:10px;justify-content:center;margin:26px 0}
.step{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted)}
.step .num{width:26px;height:26px;border-radius:50%;background:var(--line);display:grid;place-items:center;font-weight:800;color:#fff}
.step.active .num{background:linear-gradient(135deg,var(--brand),var(--brand-2))}
.step.active{color:var(--ink);font-weight:700}
.step.done .num{background:var(--ok)}
.summary{background:linear-gradient(135deg,#f7faff,#eef4ff);border:1px solid #dbe7fb;border-radius:16px;padding:20px}
.summary .row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px dashed #d9e4f7}
.summary .row:last-child{border-bottom:none;font-size:20px;font-weight:900;color:var(--err)}

/* ---------- Status tags ---------- */
.tag{display:inline-block;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:800}
.tag.pending{background:#fff4e5;color:#b76e00}
.tag.paid{background:#e8f4ff;color:#0b66c3}
.tag.confirmed{background:#eafaf1;color:#0b8f4b}
.tag.ticketed{background:#e9f0ff;color:#3b3bd6}
.tag.cancelled{background:#fdecec;color:#c62828}

/* ---------- Result page ---------- */
.result-hero{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;
  border-radius:20px;padding:34px;text-align:center;box-shadow:var(--shadow-lg)}
.result-hero .ico{font-size:48px}
.result-hero h2{margin:6px 0;font-size:26px}
.ticket{background:#fff;border:1px dashed #c9d7ee;border-radius:16px;padding:24px;max-width:560px;margin:22px auto 0}
.ticket .tno{font-size:20px;font-weight:900;letter-spacing:1px;color:var(--brand)}

/* ---------- Flash ---------- */
.flash-wrap{margin:14px auto;max-width:1180px;padding:0 20px}
.flash{padding:12px 16px;border-radius:12px;margin-bottom:8px;font-weight:600;font-size:14px}
.flash-error{background:#fdecec;color:#b42318;border:1px solid #f7c7c7}
.flash-ok{background:#eafaf1;color:#0b8f4b;border:1px solid #bde9cf}

/* ---------- Footer ---------- */
.site-footer{background:#0d1b2a;color:#c9d6e8;margin-top:60px;padding:34px 0}
.footer-inner{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.site-footer .muted{color:#8ba0bd}

/* ---------- Empty ---------- */
.empty{text-align:center;padding:60px 20px;color:var(--muted)}
.empty .ico{font-size:54px;opacity:.5}

@media (max-width:900px){
  .search-grid{grid-template-columns:1fr 1fr}
  .grid.cols-3,.grid.cols-4{grid-template-columns:1fr 1fr}
  .flight-row{grid-template-columns:1fr;gap:12px}
  .price-cta{text-align:left}
  .form-grid{grid-template-columns:1fr}
  .hero h1{font-size:32px}
}
@media (max-width:560px){
  .search-grid{grid-template-columns:1fr}
  .grid.cols-3,.grid.cols-4{grid-template-columns:1fr}
  .main-nav{gap:14px;font-size:14px}
  .nav-cta{display:none}
}

/* ---------- 优惠券卡片 ---------- */
.coupon-card{
  position:relative;border-radius:14px;padding:18px;color:#fff;
  background:linear-gradient(135deg,#0b3d91,#1a73e8);
  box-shadow:var(--shadow);display:flex;flex-direction:column;gap:4px;
}
.coupon-card::before,.coupon-card::after{
  content:"";position:absolute;width:16px;height:16px;border-radius:50%;
  background:var(--bg);top:50%;transform:translateY(-50%);
}
.coupon-card::before{left:-8px}.coupon-card::after{right:-8px}
.coupon-card.used{background:linear-gradient(135deg,#8a97a8,#b0bccd);opacity:.85}
.coupon-card .cv{font-size:30px;font-weight:900;letter-spacing:1px}
.coupon-card .cn{font-size:15px;font-weight:700;opacity:.95}
.coupon-card .cm{font-size:12px;opacity:.85}
.coupon-card .cs{font-size:12px;font-weight:800;margin-top:6px;
  background:rgba(255,255,255,.2);align-self:flex-start;padding:3px 10px;border-radius:999px}
.coupon-card .btn{margin-top:10px;align-self:flex-start}
.nav-user{color:var(--brand-2);font-weight:800}

/* ---------- 语言切换器 ---------- */
.lang-switch{display:inline-flex;align-items:center;gap:2px;background:#eef3fb;
  border:1px solid var(--line);border-radius:999px;padding:3px;margin-left:4px}
.lang-switch a{padding:5px 11px;border-radius:999px;font-size:13px;font-weight:700;
  color:var(--ink-2);line-height:1;transition:.15s}
.lang-switch a:hover{color:var(--brand-2)}
.lang-switch a.active{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;
  box-shadow:0 4px 12px rgba(26,115,232,.3)}

/* ---------- 移动端导航按钮 ---------- */
.nav-toggle{
  display:none;width:46px;height:46px;border:1px solid var(--line);border-radius:12px;
  background:#fff;cursor:pointer;font-size:22px;line-height:1;color:var(--ink-2);
  align-items:center;justify-content:center;
}
.nav-toggle:active{background:#f0f4fa}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}

/* ---------- 响应式断点 ---------- */
/* 平板(<=1024) */
@media (max-width:1024px){
  .container{padding:0 18px}
  .grid.cols-4{grid-template-columns:repeat(2,1fr)}
  .grid.cols-3{grid-template-columns:repeat(2,1fr)}
  .hero h1{font-size:36px}
  .hero-inner{padding:52px 0 84px}
}

/* 手机/小平板(<=900) */
@media (max-width:900px){
  .search-grid{grid-template-columns:1fr 1fr}
  .grid.split{grid-template-columns:1fr!important}
  .grid.cols-3,.grid.cols-4{grid-template-columns:1fr 1fr}
  .flight-row{grid-template-columns:1fr;gap:14px;padding:18px}
  .price-cta{text-align:left;display:flex;align-items:center;justify-content:space-between;
    border-top:1px dashed var(--line);padding-top:12px}
  .price-cta .btn{min-height:46px}
  .form-grid{grid-template-columns:1fr}
  .hero h1{font-size:30px}
  .hero p.sub{font-size:16px}
  .hero-inner{padding:44px 0 76px}
  .search-wrap{margin-top:-48px}
  .section{padding:40px 0}
  .section-title{font-size:23px}
  .pax-row{grid-template-columns:1fr}

  /* 导航折叠为下拉 */
  .header-inner{height:60px}
  .nav-toggle{display:inline-flex}
  .brand-mark{width:38px;height:38px;font-size:19px;border-radius:10px}
  .brand-text strong{font-size:16px}
  .brand-text small{font-size:11px}
  .main-nav{
    position:absolute;top:60px;left:0;right:0;flex-direction:column;gap:0;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:0 14px 30px rgba(13,27,42,.12);padding:8px 0;
    max-height:0;overflow:hidden;opacity:0;pointer-events:none;transition:.22s ease;
  }
  .main-nav.open{max-height:70vh;overflow:auto;opacity:1;pointer-events:auto}
  .main-nav a{padding:14px 22px;font-size:16px;width:100%;border-bottom:1px solid #f1f5fb}
  .main-nav a:last-child{border-bottom:none}
  .nav-cta{display:block;margin:8px 22px;text-align:center;border-radius:12px}
  .nav-user{padding:14px 22px!important}
  .lang-switch{margin:12px 22px;align-self:flex-start;padding:4px}
  .lang-switch a{padding:7px 14px;font-size:14px}
}

/* 手机(<=560) */
@media (max-width:560px){
  .container{padding:0 16px}
  .search-grid{grid-template-columns:1fr}
  .grid.cols-3,.grid.cols-4{grid-template-columns:1fr}
  .hero h1{font-size:25px}
  .hero-inner{padding:36px 0 68px}
  .hero .badges{gap:8px}
  .badge{padding:6px 12px;font-size:13px}
  .search-card{padding:18px;border-radius:18px}
  .field select,.field input{height:50px}
  .btn{width:100%;padding:0 18px}
  .btn.sm{width:auto}
  .section{padding:32px 0}
  .section-title{font-size:21px}
  .section-sub{margin-bottom:20px}
  .panel{padding:18px}
  .flight-time .t{font-size:20px}
  .steps{gap:6px;font-size:12px;overflow-x:auto;padding-bottom:4px;justify-content:flex-start}
  .step .num{width:22px;height:22px;font-size:12px}
  .result-hero{padding:24px}
  .result-hero h2{font-size:22px}
  .ticket{padding:18px}
  .summary .row{font-size:14px}
  .summary .row:last-child{font-size:18px}
  .form-grid{gap:12px}
}

/* 刘海/底部安全区(iPhone) */
@supports(padding:max(0px)){
  .site-header{padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}
  .site-footer{padding-bottom:max(34px,env(safe-area-inset-bottom))}
}

/* 横屏小高度 */
@media (max-height:520px) and (orientation:landscape){
  .hero-inner{padding:28px 0}
  .hero h1{font-size:22px}
}