/* =====================================================
   深途旅行 - 设计系统
   色彩: 深海蓝 #0B2545 / 翠绿 #10B981 / 暖金 #D4A853
   ===================================================== */
:root {
  --navy: #0B2545; --navy-2: #13315C; --navy-3: #1B4479;
  --green: #10B981; --green-d: #0E9F6E;
  --gold: #D4A853; --gold-l: #E8C784;
  --ink: #1F2937; --ink-2: #4B5563; --ink-3: #9CA3AF;
  --bg: #FFFFFF; --bg-alt: #F4F7FB; --line: #E5EAF1;
  --price: #E0533D; --price-d: #C0392B;
  --ok: #10B981; --warn: #E67E22; --danger: #DC2626; --info: #3B82F6;
  --radius: 16px; --radius-sm: 10px; --radius-pill: 999px;
  --shadow-sm: 0 2px 8px rgba(11,37,69,.06);
  --shadow-md: 0 8px 28px rgba(11,37,69,.12);
  --shadow-lg: 0 20px 60px rgba(11,37,69,.22);
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  --ease: cubic-bezier(.22,.8,.32,1);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--ink); background: var(--bg); overflow-x: hidden; line-height: 1.7; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
.container { width: min(1240px, 92%); margin: 0 auto; }

/* ---------- 全局可访问性：可见焦点环 ---------- */
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: 4px; }
.btn:focus-visible, .nav-cta:focus-visible, .scroller-nav button:focus-visible, .td-close:focus-visible, .back-top:focus-visible, .gal-nav:focus-visible { outline-offset: 4px; }
.field input:focus-visible, .field textarea:focus-visible { outline: none; }

/* ---------- 空状态（全局复用） ---------- */
.empty { text-align: center; padding: 60px 20px; color: var(--ink-3); }
.empty-icon { width: 76px; height: 76px; margin: 0 auto 16px; border-radius: 50%; background: var(--bg-alt); display: grid; place-items: center; font-size: 32px; }
.empty h4 { color: var(--ink-2); font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.empty p { font-size: 14px; }

/* ---------- 区块标题装饰线 ---------- */
.sec-head { position: relative; }
.sec-title { position: relative; display: inline-block; }
.sec-head::after { content: ""; display: block; width: 64px; height: 4px; margin: 20px auto 0; border-radius: 4px; background: linear-gradient(90deg, var(--green), var(--gold)); }

/* ---------- 按钮 ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 34px; border-radius: 999px; font-size: 16px; font-weight: 600; border: none; cursor: pointer; transition: all .3s var(--ease); }
.btn-gold { background: linear-gradient(135deg, var(--gold), #C89638); color: #fff; box-shadow: 0 8px 24px rgba(212,168,83,.4); }
.btn-gold:hover { transform: translateY(-3px); box-shadow: 0 14px 34px rgba(212,168,83,.55); }
.btn-ghost { background: rgba(255,255,255,.12); color: #fff; border: 1px solid rgba(255,255,255,.45); backdrop-filter: blur(6px); }
.btn-ghost:hover { background: rgba(255,255,255,.25); transform: translateY(-3px); }
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-3); transform: translateY(-2px); }
.btn-sm { padding: 9px 20px; font-size: 14px; }
.btn-block { width: 100%; }
.pulse { animation: pulse 2.4s infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 8px 24px rgba(212,168,83,.4); } 50% { box-shadow: 0 8px 24px rgba(212,168,83,.4), 0 0 0 14px rgba(212,168,83,0); } }

/* ---------- 导航 ---------- */
.nav { position: fixed; inset: 0 0 auto; z-index: 100; transition: all .4s var(--ease); padding: 18px 0; }
.nav.scrolled { background: rgba(11,37,69,.92); backdrop-filter: blur(14px); padding: 10px 0; box-shadow: 0 4px 30px rgba(0,0,0,.25); }
.nav-inner { width: min(1300px, 94%); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }
.logo { color: #fff; font-size: 24px; font-weight: 800; letter-spacing: 1px; display: flex; align-items: center; gap: 10px; }
.logo small { font-size: 10px; font-weight: 400; opacity: .7; letter-spacing: 2px; margin-top: 8px; }
.logo-mark { width: 40px; height: 40px; border-radius: 12px; background: linear-gradient(135deg, var(--green), var(--navy-3)); display: grid; place-items: center; font-size: 20px; box-shadow: 0 4px 14px rgba(16,185,129,.45); }
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a { color: rgba(255,255,255,.85); font-size: 15px; font-weight: 500; position: relative; transition: color .3s; }
.nav-links a:not(.nav-cta)::after { content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 2px; background: var(--gold); transition: width .3s var(--ease); }
.nav-links a:hover { color: #fff; }
.nav-links a:hover::after { width: 100%; }
.nav-cta { padding: 10px 24px; border-radius: 999px; background: var(--green); color: #fff !important; font-weight: 600; transition: all .3s; }
.nav-cta:hover { background: var(--green-d); transform: translateY(-2px); }
.nav-burger { display: none; background: none; border: 0; cursor: pointer; flex-direction: column; gap: 5px; }
.nav-burger span { width: 26px; height: 2px; background: #fff; border-radius: 2px; transition: .3s; }

/* ---------- Hero ---------- */
.hero { position: relative; height: 100vh; min-height: 640px; overflow: hidden; display: flex; align-items: center; justify-content: center; }
.hero-bg { position: absolute; inset: -18% 0; background-size: cover; background-position: center; will-change: transform; }
.hero-glow { position: absolute; inset: 0; background: radial-gradient(ellipse at 50% 100%, rgba(11,37,69,.2) 0%, rgba(11,37,69,.75) 100%); }
.hero-particles { position: absolute; inset: 0; pointer-events: none; }
.hero-particles i { position: absolute; width: 5px; height: 5px; border-radius: 50%; background: rgba(255,255,255,.7); animation: floatUp linear infinite; }
@keyframes floatUp { from { transform: translateY(100vh) scale(.6); opacity: 0; } 12% { opacity: .8; } to { transform: translateY(-8vh) scale(1.1); opacity: 0; } }
.hero-skyline { position: absolute; bottom: -2px; left: 0; right: 0; height: 130px; background: linear-gradient(transparent, rgba(11,37,69,.9)); -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 130' preserveAspectRatio='none'%3E%3Cpath d='M0 130 L0 90 L60 90 L60 55 L100 55 L100 80 L150 80 L150 30 L170 10 L190 30 L190 75 L260 75 L260 95 L330 95 L330 45 L360 45 L360 20 L375 5 L390 20 L390 70 L460 70 L460 100 L560 100 L560 60 L600 60 L600 85 L680 85 L680 40 L710 40 L710 15 L722 2 L734 15 L734 65 L800 65 L800 95 L880 95 L880 55 L930 55 L930 80 L1000 80 L1000 35 L1030 35 L1030 70 L1100 70 L1100 92 L1200 92 L1200 130 Z' fill='%23000'/%3E%3C/svg%3E") bottom/100% 100% no-repeat; mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 130' preserveAspectRatio='none'%3E%3Cpath d='M0 130 L0 90 L60 90 L60 55 L100 55 L100 80 L150 80 L150 30 L170 10 L190 30 L190 75 L260 75 L260 95 L330 95 L330 45 L360 45 L360 20 L375 5 L390 20 L390 70 L460 70 L460 100 L560 100 L560 60 L600 60 L600 85 L680 85 L680 40 L710 40 L710 15 L722 2 L734 15 L734 65 L800 65 L800 95 L880 95 L880 55 L930 55 L930 80 L1000 80 L1000 35 L1030 35 L1030 70 L1100 70 L1100 92 L1200 92 L1200 130 Z' fill='%23000'/%3E%3C/svg%3E") bottom/100% 100% no-repeat; background-color: rgba(7,22,42,.95); }
.hero-content { position: relative; z-index: 3; text-align: center; color: #fff; padding: 0 20px; }
.hero-eyebrow { letter-spacing: 6px; font-size: 13px; opacity: .8; margin-bottom: 22px; }
.hero-title { font-size: clamp(38px, 6.4vw, 78px); font-weight: 900; letter-spacing: 4px; line-height: 1.25; background: linear-gradient(100deg, #fff 30%, var(--gold-l) 55%, #fff 80%); background-size: 220% auto; -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; animation: shine 5.5s linear infinite; text-shadow: 0 10px 44px rgba(0,0,0,.3); }
@keyframes shine { to { background-position: 220% center; } }
.hero-sub { margin: 22px 0 40px; font-size: clamp(15px, 2vw, 20px); opacity: .92; letter-spacing: 2px; }
.hero-cta { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }
.hero-scroll { position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); color: rgba(255,255,255,.75); font-size: 12px; letter-spacing: 3px; display: flex; flex-direction: column; align-items: center; gap: 8px; z-index: 3; }
.hero-scroll span { width: 1px; height: 44px; background: linear-gradient(rgba(255,255,255,0), #fff); animation: scrollHint 1.8s infinite; }
@keyframes scrollHint { 0% { transform: scaleY(0); transform-origin: top; } 55% { transform: scaleY(1); transform-origin: top; } 56% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* ---------- 通用 Section ---------- */
.section { padding: 110px 0; position: relative; }
.section-alt { background: var(--bg-alt); }
.sec-head { text-align: center; margin-bottom: 64px; }
.sec-eyebrow { color: var(--green); letter-spacing: 5px; font-size: 13px; font-weight: 700; margin-bottom: 12px; }
.sec-title { font-size: clamp(28px, 4vw, 44px); font-weight: 800; color: var(--navy); letter-spacing: 2px; line-height: 1.35; }
.sec-desc { color: var(--ink-2); margin-top: 14px; font-size: 16px; }
.sec-head-light .sec-eyebrow { color: var(--gold); }

/* ---------- 信任数据 ---------- */
.trust { padding: 90px 0; position: relative; overflow: hidden; background: linear-gradient(180deg, #fff, var(--bg-alt)); }
.trust-deco { position: absolute; inset: auto 0 0; height: 160px; opacity: .8; }
.trust-deco svg { width: 100%; height: 100%; }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.trust-item { text-align: center; padding: 36px 16px; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-sm); border: 1px solid var(--line); transition: all .35s var(--ease); position: relative; overflow: hidden; }
.trust-item::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--green), var(--gold)); opacity: 0; transition: opacity .35s var(--ease); }
.trust-item:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); }
.trust-item:hover::before { opacity: 1; }
.trust-num { font-size: clamp(34px, 4vw, 52px); font-weight: 900; color: var(--navy); }
.trust-num em { font-style: normal; color: var(--green); font-size: .55em; margin-left: 4px; }
.trust-item p { color: var(--ink-2); margin-top: 6px; font-size: 15px; }

/* ---------- 目的地 · 对角网格视差 ---------- */
.dest-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.dest-card { position: relative; height: 340px; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); will-change: transform; }
.dest-card:nth-child(2), .dest-card:nth-child(5) { height: 380px; margin-top: -20px; }
.dest-img { position: absolute; inset: 0; background-size: cover; background-position: center; transition: transform .7s var(--ease); }
.dest-card:hover .dest-img { transform: scale(1.1); }
.dest-overlay { position: absolute; inset: 0; padding: 26px; display: flex; flex-direction: column; justify-content: flex-end; background: linear-gradient(200deg, rgba(11,37,69,0) 35%, rgba(11,37,69,.86)); color: #fff; }
.dest-overlay h3 { font-size: 26px; font-weight: 800; letter-spacing: 2px; }
.dest-tags { display: flex; gap: 8px; margin: 10px 0; flex-wrap: wrap; }
.dest-tags span { font-size: 12px; padding: 3px 12px; border-radius: 999px; background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.3); backdrop-filter: blur(4px); }
.dest-rating { color: var(--gold-l); font-weight: 700; }
.dest-more { margin-top: 12px; font-size: 14px; color: var(--gold-l); opacity: 0; transform: translateY(10px); transition: all .4s var(--ease); }
.dest-card:hover .dest-more { opacity: 1; transform: none; }

/* ---------- 线路 · 切片展开 ---------- */
.tour-scroller { display: grid; grid-auto-flow: column; grid-auto-columns: min(340px, 82vw); gap: 24px; overflow-x: auto; padding: 10px 4px 26px; scroll-snap-type: x mandatory; scrollbar-width: none; }
.tour-scroller::-webkit-scrollbar { display: none; }
.tour-card { scroll-snap-align: start; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--line); transition: all .35s var(--ease); position: relative; }
.tour-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; z-index: 3; background: linear-gradient(90deg, var(--green), var(--gold)); opacity: 0; transition: opacity .35s var(--ease); }
.tour-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); }
.tour-card:hover::before { opacity: 1; }
.slice-wrap { position: relative; height: 210px; overflow: hidden; display: flex; }
.slice { flex: 1; background-size: 800% 100%; background-position: calc(var(--i) / 7 * 100%) center; transform: translateY(101%); }
.slice-wrap.sliced .slice { animation: sliceIn .7s var(--ease) forwards; animation-delay: calc(var(--i) * 0.055s); }
@keyframes sliceIn { to { transform: translateY(0); } }
.badge-pure { position: absolute; z-index: 2; top: 14px; left: 14px; background: var(--green); color: #fff; font-size: 12px; font-weight: 700; padding: 5px 14px; border-radius: 999px; box-shadow: 0 4px 12px rgba(16,185,129,.5); }
.tour-body { padding: 20px 22px 24px; }
.tour-dest { font-size: 12px; color: var(--green); font-weight: 700; letter-spacing: 1px; }
.tour-body h3 { font-size: 17px; font-weight: 700; color: var(--navy); margin: 8px 0 12px; line-height: 1.5; height: 51px; overflow: hidden; }
.tour-meta { display: flex; gap: 14px; font-size: 13px; color: var(--ink-3); margin-bottom: 16px; }
.tour-meta span:nth-child(2) { color: var(--gold); font-weight: 700; }
.tour-foot { display: flex; align-items: center; justify-content: space-between; }
.tour-price { color: #E0533D; font-size: 13px; }
.tour-price b { font-size: 24px; font-weight: 900; }
.tour-price del { color: var(--ink-3); margin-left: 6px; font-size: 12px; }
.scroller-nav { display: flex; justify-content: center; gap: 14px; margin-top: 8px; }
.scroller-nav button { width: 46px; height: 46px; border-radius: 50%; border: 1px solid var(--line); background: #fff; font-size: 18px; cursor: pointer; color: var(--navy); transition: all .3s; box-shadow: var(--shadow-sm); }
.scroller-nav button:hover { background: var(--navy); color: #fff; transform: translateY(-2px); }

/* ---------- 线路详情弹窗 ---------- */
.tour-detail-overlay { position: fixed; inset: 0; z-index: 9999; background: rgba(11,37,69,.65); backdrop-filter: blur(8px); display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transition: opacity .35s, visibility .35s; padding: 20px; overflow-y: auto; }
.tour-detail-overlay.active { opacity: 1; visibility: visible; }
.tour-detail-modal { background: #fff; border-radius: var(--radius); width: min(860px, 100%); max-height: 90vh; overflow-y: auto; position: relative; box-shadow: var(--shadow-lg); transform: translateY(40px) scale(.96); transition: transform .4s cubic-bezier(.22,.8,.32,1); }
.tour-detail-overlay.active .tour-detail-modal { transform: translateY(0) scale(1); }
.td-close { position: absolute; top: 14px; right: 16px; z-index: 5; width: 38px; height: 38px; border-radius: 50%; border: none; background: rgba(255,255,255,.9); font-size: 22px; cursor: pointer; color: var(--ink-2); display: grid; place-items: center; transition: all .25s; box-shadow: 0 2px 10px rgba(0,0,0,.1); }
.td-close:hover { background: var(--navy); color: #fff; transform: rotate(90deg); }
.td-hero { position: relative; height: 300px; overflow: hidden; border-radius: var(--radius) var(--radius) 0 0; }
.td-hero img { width: 100%; height: 100%; object-fit: cover; }
.td-hero-info { position: absolute; bottom: 0; left: 0; right: 0; padding: 24px 28px; background: linear-gradient(transparent, rgba(11,37,69,.88)); color: #fff; }
.td-hero-info .td-dest { display: inline-block; background: var(--green); color: #fff; font-size: 12px; padding: 3px 12px; border-radius: 20px; margin-bottom: 8px; font-weight: 600; }
.td-hero-info h2 { font-size: 24px; margin-bottom: 6px; text-shadow: 0 2px 8px rgba(0,0,0,.3); }
.td-meta-row { display: flex; gap: 16px; font-size: 13.5px; opacity: .9; flex-wrap: wrap; }
.td-meta-row span { background: rgba(255,255,255,.15); padding: 2px 10px; border-radius: 20px; }
.td-body { padding: 28px; }
.td-price-bar { display: flex; align-items: center; gap: 16px; padding: 18px 22px; background: linear-gradient(135deg, #FFFBF0, #FFF8E6); border: 1px solid rgba(212,168,83,.3); border-radius: var(--radius-sm); margin-bottom: 24px; flex-wrap: wrap; }
.td-price { color: var(--price); }
.td-price small { font-size: 15px; }
.td-price b { font-size: 32px; }
.td-price-bar del { color: var(--ink-3); font-size: 15px; }
.td-section { margin-bottom: 22px; }
.td-section h3 { font-size: 17px; margin-bottom: 12px; color: var(--navy); padding-bottom: 8px; border-bottom: 2px solid var(--bg-alt); }
.td-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.td-tags span { background: #F0FDF4; color: #166534; padding: 5px 14px; border-radius: 20px; font-size: 13.5px; font-weight: 500; }
.td-itinerary { border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; }
.td-day { border-bottom: 1px solid var(--line); }
.td-day:last-child { border-bottom: none; }
.td-day-head { display: flex; justify-content: space-between; align-items: center; padding: 14px 18px; background: var(--bg-alt); cursor: pointer; user-select: none; }
.td-day-head b { color: var(--navy); font-size: 15px; }
.td-day-head .td-day-toggle { font-size: 18px; color: var(--ink-3); transition: transform .3s; }
.td-day.open .td-day-toggle { transform: rotate(180deg); }
.td-day-body { padding: 14px 18px; display: none; font-size: 14px; line-height: 1.8; color: var(--ink-2); }
.td-day.open .td-day-body { display: block; }
.td-day-body h4 { color: var(--navy); font-size: 15px; margin-bottom: 6px; }
.td-day-body p { margin-bottom: 6px; }
.td-day-body .td-meals { font-size: 13px; color: var(--ink-3); margin-top: 8px; }
.td-fee-group { margin-bottom: 12px; }
.td-fee-group b { display: block; font-size: 14.5px; color: var(--navy); margin-bottom: 6px; }
.td-fee-group div { font-size: 14px; color: var(--ink-2); line-height: 1.8; padding-left: 14px; }
.td-deps { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; }
.td-dep-card { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 12px 14px; text-align: center; }
.td-dep-date { font-weight: 700; color: var(--navy); font-size: 15px; }
.td-dep-price { color: var(--price); font-size: 18px; font-weight: 700; margin-top: 4px; }
.td-dep-stock { font-size: 12px; color: var(--ink-3); margin-top: 2px; }
@media (max-width: 680px) {
  .td-hero { height: 220px; }
  .td-hero-info h2 { font-size: 19px; }
  .td-body { padding: 18px; }
  .td-price b { font-size: 26px; }
  .td-price-bar { flex-direction: column; align-items: flex-start; }
  .td-price-bar .btn-gold { width: 100%; }
}

/* ---------- 企业团建 ---------- */
.corporate { background: linear-gradient(145deg, var(--navy) 0%, var(--navy-2) 60%, #0E3A63 100%); padding: 120px 0; position: relative; overflow: hidden; }
.corporate::before { content: ""; position: absolute; width: 560px; height: 560px; border-radius: 50%; background: radial-gradient(circle, rgba(16,185,129,.16), transparent 70%); top: -180px; right: -140px; }
.corp-layout { display: grid; grid-template-columns: 1fr 1.2fr; gap: 70px; align-items: start; }
.corp-sticky { position: sticky; top: 120px; }
.corp-points { list-style: none; margin: 28px 0 36px; }
.corp-points li { color: rgba(255,255,255,.88); padding: 10px 0 10px 34px; position: relative; font-size: 16px; }
.corp-points li::before { content: "✓"; position: absolute; left: 0; width: 24px; height: 24px; border-radius: 50%; background: rgba(16,185,129,.22); color: var(--green); display: grid; place-items: center; font-size: 13px; font-weight: 900; top: 12px; }
.corp-cards { display: grid; gap: 26px; }
.corp-card { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14); border-radius: var(--radius); overflow: hidden; backdrop-filter: blur(8px); transition: all .4s var(--ease); transform-style: preserve-3d; }
.corp-card:hover { transform: translateY(-6px) rotateX(2deg); border-color: rgba(212,168,83,.5); box-shadow: var(--shadow-lg); }
.corp-card-img { height: 190px; background-size: cover; background-position: center; }
.corp-card-body { padding: 24px 28px 28px; color: #fff; }
.corp-card-body h3 { font-size: 21px; margin-bottom: 8px; color: var(--gold-l); }
.corp-card-body p { color: rgba(255,255,255,.75); font-size: 14.5px; }

/* ---------- 关于我们 ---------- */
.about-float { position: absolute; right: 0; top: 40px; width: 300px; opacity: .9; pointer-events: none; }
.about-layout { display: grid; grid-template-columns: 1.1fr 1fr; gap: 66px; align-items: center; }
.about-content { color: var(--ink-2); margin: 22px 0; font-size: 15.5px; }
.about-honors { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 24px 0; }
.about-honors span { background: var(--bg-alt); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 12px 16px; font-size: 14px; color: var(--navy); font-weight: 500; }
.about-license { font-size: 13px; color: var(--ink-3); }
.about-img { position: relative; }
.about-img-main { height: 430px; border-radius: var(--radius); background-size: cover; background-position: center; box-shadow: var(--shadow-lg); }
.about-img-tag { position: absolute; bottom: -18px; left: 30px; background: var(--gold); color: #fff; font-weight: 700; padding: 12px 28px; border-radius: 999px; box-shadow: 0 10px 26px rgba(212,168,83,.45); }

/* ---------- 画廊 ---------- */
.gallery { background: #07162A; padding: 110px 0 0; }
.gallery .sec-head { margin-bottom: 50px; }
.gallery-stage { position: relative; height: 74vh; min-height: 480px; overflow: hidden; }
.gallery-slide { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: 0; transform: scale(1.08); filter: blur(10px); transition: opacity 1s var(--ease), transform 1.4s var(--ease), filter 1s var(--ease); }
.gallery-slide.active { opacity: 1; transform: scale(1); filter: blur(0); z-index: 1; }
.gallery-slide::after { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(0deg, rgba(255,255,255,.012) 0 1px, transparent 1px 3px), linear-gradient(0deg, rgba(7,22,42,.72), transparent 40%); }
.gallery-cap { position: absolute; left: 6%; bottom: 8%; color: #fff; z-index: 2; }
.gallery-cap h3 { font-size: clamp(26px, 3.6vw, 42px); font-weight: 800; letter-spacing: 3px; text-shadow: 0 6px 26px rgba(0,0,0,.5); }
.gallery-cap p { opacity: .82; margin-top: 8px; letter-spacing: 1px; }
.gal-nav { position: absolute; top: 50%; transform: translateY(-50%); z-index: 3; width: 54px; height: 54px; border-radius: 50%; border: 1px solid rgba(255,255,255,.35); background: rgba(255,255,255,.1); color: #fff; font-size: 26px; cursor: pointer; backdrop-filter: blur(6px); transition: all .3s; }
.gal-nav:hover { background: rgba(255,255,255,.28); }
.gal-prev { left: 26px; } .gal-next { right: 26px; }
.gallery-progress { position: absolute; bottom: 0; left: 0; right: 0; z-index: 3; display: flex; gap: 6px; padding: 0 6%; }
.gallery-progress i { flex: 1; height: 3px; background: rgba(255,255,255,.22); cursor: pointer; position: relative; overflow: hidden; }
.gallery-progress i.on::after { content: ""; position: absolute; inset: 0; background: var(--gold); animation: galBar 4.5s linear forwards; }
@keyframes galBar { from { transform: translateX(-100%); } to { transform: translateX(0); } }

/* ---------- 评价 3D 翻转 ---------- */
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.review-flip { perspective: 1200px; height: 300px; }
.review-inner { position: relative; width: 100%; height: 100%; transform-style: preserve-3d; transition: transform .8s var(--ease); }
.review-flip:hover .review-inner { transform: rotateY(180deg); }
.review-front, .review-back { position: absolute; inset: 0; backface-visibility: hidden; border-radius: var(--radius); padding: 30px; display: flex; flex-direction: column; }
.review-front { background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-sm); align-items: center; text-align: center; justify-content: center; gap: 8px; }
.review-back { background: linear-gradient(150deg, var(--navy), var(--navy-3)); color: #fff; transform: rotateY(180deg); justify-content: center; gap: 16px; }
.review-back p { font-size: 14.5px; line-height: 1.8; overflow: auto; max-height: 190px; }
.review-back small { opacity: .7; }
.review-avatar { width: 62px; height: 62px; border-radius: 50%; background: linear-gradient(135deg, var(--green), var(--navy-3)); color: #fff; display: grid; place-items: center; font-size: 24px; font-weight: 800; box-shadow: 0 6px 18px rgba(16,185,129,.4); }
.review-front h4 { color: var(--navy); font-size: 17px; display: flex; align-items: center; gap: 8px; }
.badge-official { font-style: normal; font-size: 11px; background: var(--gold); color: #fff; padding: 2px 10px; border-radius: 999px; font-weight: 600; }
.review-stars { color: var(--gold); letter-spacing: 3px; }
.review-brief { color: var(--ink-2); font-size: 14px; }
.review-hint { font-size: 12px; color: var(--ink-3); margin-top: 6px; }

/* ---------- 联系表单 ---------- */
.contact { background: linear-gradient(160deg, #07162A, var(--navy) 55%, var(--navy-2)); padding: 120px 0; }
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.hotline { display: flex; align-items: center; gap: 20px; margin: 34px 0 28px; }
.hotline small { color: rgba(255,255,255,.65); display: block; letter-spacing: 1px; }
.hotline b { color: #fff; font-size: clamp(26px, 3vw, 38px); font-weight: 900; letter-spacing: 1px; }
.hotline-ring { width: 64px; height: 64px; border-radius: 50%; background: rgba(16,185,129,.16); position: relative; flex-shrink: 0; }
.hotline-ring::before { content: "📞"; position: absolute; inset: 0; display: grid; place-items: center; font-size: 24px; }
.hotline-ring::after { content: ""; position: absolute; inset: -6px; border-radius: 50%; border: 2px solid var(--green); animation: breathe 2s var(--ease) infinite; }
@keyframes breathe { 0% { transform: scale(.85); opacity: 1; } 100% { transform: scale(1.35); opacity: 0; } }
.contact-info { list-style: none; color: rgba(255,255,255,.8); display: grid; gap: 12px; font-size: 15px; }
.contact-form { background: rgba(255,255,255,.98); border-radius: 22px; padding: 42px 40px; box-shadow: var(--shadow-lg); }
.contact-form h3 { color: var(--navy); font-size: 22px; margin-bottom: 26px; text-align: center; }
.field { position: relative; margin-bottom: 24px; }
.field input, .field textarea { width: 100%; border: 0; border-bottom: 2px solid var(--line); padding: 14px 4px 10px; font-size: 15.5px; font-family: inherit; background: transparent; outline: none; resize: none; }
.field label { position: absolute; left: 4px; top: 14px; color: var(--ink-3); pointer-events: none; transition: all .25s var(--ease); }
.field input:focus + label, .field input:not(:placeholder-shown) + label,
.field textarea:focus + label, .field textarea:not(:placeholder-shown) + label { top: -10px; font-size: 12px; color: var(--green); }
.field i { position: absolute; left: 0; bottom: 0; height: 2px; width: 100%; transform: scaleX(0); transform-origin: left; background: linear-gradient(90deg, var(--green), var(--gold)); transition: transform .45s var(--ease); }
.field input:focus ~ i, .field textarea:focus ~ i { transform: scaleX(1); }
.form-tip { font-size: 12px; color: var(--ink-3); text-align: center; margin-top: 14px; }

/* 团建表单双列 */
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.field-row .field { margin-bottom: 24px; }

/* 意向线路提示 */
.tour-hint {
  background: linear-gradient(135deg, #EEF6FF, #F0F9F4);
  border-left: 3px solid var(--green);
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--navy);
  margin-bottom: 20px;
}
.tour-hint::before { content: '📍 意向线路：'; font-weight: 600; }

/* ---------- 页脚 ---------- */
.footer { background: #060F1D; color: rgba(255,255,255,.6); position: relative; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 40px; padding: 70px 0 50px; }
.footer-grid h4 { color: #fff; margin-bottom: 16px; font-size: 16px; }
.footer-grid a { display: block; padding: 5px 0; font-size: 14px; transition: color .3s; }
.footer-grid a:hover { color: var(--gold-l); }
.footer-grid p { font-size: 14px; margin-top: 12px; }
.logo-light { font-size: 22px; }
.footer-bar { border-top: 1px solid rgba(255,255,255,.08); text-align: center; padding: 22px 0; font-size: 13px; }
.back-top { position: fixed; right: 30px; bottom: 34px; width: 50px; height: 50px; border-radius: 50%; border: 0; background: var(--navy); color: #fff; font-size: 20px; cursor: pointer; box-shadow: var(--shadow-md); opacity: 0; transform: scale(.5) rotate(-180deg); transition: all .5s var(--ease); z-index: 90; }
.back-top.show { opacity: 1; transform: none; }
.back-top:hover { background: var(--green); }

/* ---------- Toast ---------- */
.toast { position: fixed; top: 90px; left: 50%; transform: translate(-50%, -30px); background: var(--navy); color: #fff; padding: 14px 30px; border-radius: 999px; font-size: 15px; box-shadow: var(--shadow-lg); opacity: 0; pointer-events: none; transition: all .4s var(--ease); z-index: 999; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast.err { background: #DC2626; }

/* ---------- 动画基础 ---------- */
.reveal { opacity: 0; transform: translateY(46px); }
.reveal.in { opacity: 1; transform: none; transition: all .9s var(--ease); }
.reveal-3d { opacity: 0; transform: perspective(900px) rotateY(-14deg) translateX(60px); }
.reveal-3d.in { opacity: 1; transform: none; transition: all 1s var(--ease); }
.diag-item { opacity: 0; }
.diag-item[data-diag="up"] { transform: translate(46px, 46px); }
.diag-item[data-diag="down"] { transform: translate(-46px, -46px); }
.diag-item.in { opacity: 1; transform: none; transition: all 1s var(--ease); }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .dest-grid, .review-grid { grid-template-columns: repeat(2, 1fr); }
  .corp-layout, .about-layout, .contact-layout { grid-template-columns: 1fr; gap: 46px; }
  .corp-sticky { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
  .nav-links { position: fixed; inset: 0; background: rgba(11,37,69,.97); flex-direction: column; justify-content: center; gap: 26px; transform: translateX(100%); transition: transform .45s var(--ease); }
  .nav-links.open { transform: none; }
  .nav-links a { font-size: 20px; }
  .nav-burger { display: flex; z-index: 101; }
  .dest-grid, .review-grid { grid-template-columns: 1fr; }
  .dest-card:nth-child(2), .dest-card:nth-child(5) { height: 340px; margin-top: 0; }
  .section { padding: 70px 0; }
  .contact-form { padding: 32px 24px; }
  /* 移动端视差降级 */
  .diag-item[data-diag] { transform: translateY(30px); }
  .slice { transform: none !important; animation: none !important; }
  .slice-wrap { background-size: cover; background-position: center; }
  .parallax-layer { transform: none !important; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}