/* ============================================================
   Sound Of Spring · Design Tokens & Global Styles
   明亮色调：暖米白底 / 嫩绿主 / 朱砂红点缀 / 墨黑文字
   ============================================================ */

:root {
  /* Palette */
  --bg: #FAF7F2;            /* 暖米白主背景 */
  --bg-soft: #F2ECE2;       /* 卡片柔色背景 */
  --bg-tint: #E8F1E8;       /* 嫩绿淡彩 */
  --surface: #FFFFFF;
  --ink: #1B1B1B;
  --ink-soft: #4A4A4A;
  --ink-muted: #7A7468;
  --line: #E5DED2;
  --primary: #1F3A2E;       /* 江南春绿 */
  --primary-soft: #2F5A45;
  --accent: #C8553D;        /* 朱砂红 */
  --accent-soft: #E8B4A4;
  --gold: #C9A86A;
  --warn: #B8541A;

  /* Product accents (for listing & detail) */
  --c-custom: #1F3A2E;
  --c-traditional: #C9A86A;
  --c-family: #D88B9E;
  --c-culture: #C8553D;

  /* Typography */
  --font-sans: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-serif: 'Playfair Display', 'Noto Serif SC', 'Songti SC', 'SimSun', serif;
  --font-cn: 'Noto Serif SC', 'Songti SC', 'STSong', serif;

  /* Spacing */
  --container: 1200px;
  --gap: 24px;
  --gap-sm: 16px;
  --gap-xs: 8px;
  --radius-card: 16px;
  --radius-btn: 999px;
  --radius-sm: 8px;

  /* Shadow */
  --shadow-sm: 0 2px 8px rgba(31, 58, 46, 0.06);
  --shadow-md: 0 8px 24px rgba(31, 58, 46, 0.10);
  --shadow-lg: 0 20px 48px rgba(31, 58, 46, 0.14);

  /* Motion */
  --ease: cubic-bezier(.22, .61, .36, 1);
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
}

/* Headings — 用衬线字体营造江南雅致 */
h1, h2, h3 { font-family: var(--font-serif); font-weight: 600; line-height: 1.2; color: var(--ink); }
:lang(zh) h1, :lang(zh) h2, :lang(zh) h3 { font-family: var(--font-cn); }
h1 { font-size: clamp(2.4rem, 4.5vw, 4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.3rem, 2vw, 1.6rem); }
p  { color: var(--ink-soft); }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 32px; }
@media (max-width: 768px) { .container { padding: 0 20px; } }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250, 247, 242, 0.92);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; padding: 18px 32px; max-width: var(--container); margin: 0 auto; }
.brand { display: flex; align-items: center; gap: 12px; font-family: var(--font-serif); font-size: 1.1rem; color: var(--primary); font-weight: 600; }
.brand-logo {
  width: 40px; height: 40px; border-radius: 10px; object-fit: cover;
  background: #fff; border: 1px solid rgba(0,0,0,.08); flex-shrink: 0;
}
.brand-mark {
  width: 36px; height: 36px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-soft));
  color: #fff; display: grid; place-items: center;
  font-family: var(--font-serif); font-size: 0.95rem; letter-spacing: -0.04em;
  box-shadow: var(--shadow-sm);
}
.nav-tabs { display: flex; gap: 4px; align-items: center; }
.nav-tab {
  position: relative; padding: 10px 18px; border-radius: var(--radius-btn);
  color: var(--ink-soft); font-size: 0.95rem;
  transition: all 0.2s var(--ease);
}
.nav-tab:hover { color: var(--primary); background: var(--bg-tint); }
.nav-tab[aria-current="page"] { color: var(--primary); background: var(--bg-tint); font-weight: 600; }
.nav-tab[aria-current="page"]::after {
  content: ''; position: absolute; left: 50%; bottom: 4px; transform: translateX(-50%);
  width: 16px; height: 2px; background: var(--accent); border-radius: 2px;
}
.nav-actions { display: flex; gap: 8px; align-items: center; }

/* Lang switch (in nav + floating) */
.lang-switch {
  position: relative; display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px; border-radius: var(--radius-btn);
  background: var(--surface); border: 1px solid var(--line); color: var(--ink-soft);
  font-size: 0.9rem; cursor: pointer; transition: all 0.2s var(--ease);
}
.lang-switch:hover { border-color: var(--primary); color: var(--primary); }
.lang-switch select {
  appearance: none; -webkit-appearance: none;
  background: transparent; border: 0; padding-right: 14px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'><path fill='%231F3A2E' d='M0 0l5 6 5-6z'/></svg>");
  background-repeat: no-repeat; background-position: right 0 center;
  cursor: pointer;
}

/* Mobile nav toggle */
.nav-toggle { display: none; }
@media (max-width: 900px) {
  .nav { padding: 14px 20px; }
  .nav-tabs { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; padding: 12px 20px; gap: 4px; background: var(--bg); border-bottom: 1px solid var(--line); }
  .nav-tabs.open { display: flex; }
  .nav-toggle { display: inline-flex; padding: 10px; border-radius: var(--radius-sm); }
  .nav-toggle svg { width: 22px; height: 22px; stroke: var(--ink); }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: var(--radius-btn);
  font-size: 0.95rem; font-weight: 500;
  transition: all 0.2s var(--ease);
  border: 1px solid transparent;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-soft); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: #B0462F; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-ghost { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-ghost:hover { background: var(--primary); color: #fff; }
.btn-sm { padding: 10px 18px; font-size: 0.88rem; }

/* ===== Hero ===== */
.hero {
  position: relative; min-height: 88vh; display: grid; place-items: center;
  overflow: hidden; isolation: isolate;
  background: var(--bg);
}
.hero-bg { position: absolute; inset: 0; z-index: -1; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,.22) 0%, rgba(0,0,0,.48) 100%);
}
.hero-inner { position: relative; z-index: 1; text-align: center; color: #fff; padding: 120px 24px 80px; max-width: 900px; }
.hero-eyebrow { display: inline-block; padding: 6px 16px; border: 1px solid rgba(255,255,255,.5); border-radius: var(--radius-btn); font-size: 0.85rem; letter-spacing: 0.1em; text-transform: uppercase; backdrop-filter: blur(6px); margin-bottom: 24px; color: #fff; }
.hero h1 { color: #fff; margin-bottom: 24px; text-shadow: 0 2px 12px rgba(0,0,0,.25); }
.hero-lead { font-size: clamp(1.05rem, 1.6vw, 1.25rem); color: rgba(255,255,255,.92); max-width: 640px; margin: 0 auto 36px; line-height: 1.7; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-actions .btn-ghost { color: #fff; border-color: rgba(255,255,255,.6); }
.hero-actions .btn-ghost:hover { background: #fff; color: var(--primary); border-color: #fff; }

/* Hero 诉求收集表单 */
.hero-inquiry {
  margin-top: 40px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  background: rgba(255,255,255,.6);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,.7);
  border-radius: 16px;
  padding: 24px;
  text-align: left;
}
.hero-inquiry h3 { color: var(--primary); font-family: var(--font-sans); font-size: 1.05rem; margin-bottom: 4px; }
.inquiry-sub { color: rgba(31,58,46,.8); font-size: .85rem; margin-bottom: 16px; }
.inquiry-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 10px; }
.hero-inquiry input, .hero-inquiry textarea {
  width: 100%; padding: 11px 14px; border-radius: 8px;
  border: 1px solid rgba(31,58,46,.2); background: rgba(255,255,255,.95);
  font-size: .92rem; color: var(--ink);
}
.hero-inquiry textarea { resize: vertical; min-height: 56px; margin-bottom: 12px; }
.hero-inquiry .btn { width: 100%; justify-content: center; }
@media (max-width: 560px) { .inquiry-row { grid-template-columns: 1fr; } }

/* ===== Section ===== */
.section { padding: 96px 0; }
.section-sm { padding: 64px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-head .eyebrow { color: var(--accent); font-size: 0.85rem; letter-spacing: 0.18em; text-transform: uppercase; margin-bottom: 12px; font-weight: 600; }
.section-head h2 { margin-bottom: 16px; }
.section-head p { font-size: 1.05rem; color: var(--ink-muted); }
.section-divider { width: 56px; height: 3px; background: var(--accent); border-radius: 2px; margin: 16px auto 0; }

/* ===== About split ===== */
.about-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: center; }
.about-text h2 { margin-bottom: 20px; }
.about-text p { margin-bottom: 16px; font-size: 1.02rem; line-height: 1.85; }
.about-text .accent-text { color: var(--primary); font-weight: 500; }
.about-imgs { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.about-imgs img { width: 100%; aspect-ratio: 4/5; object-fit: cover; border-radius: var(--radius-card); box-shadow: var(--shadow-md); }
.about-imgs img:nth-child(2) { margin-top: 40px; }
@media (max-width: 900px) { .about-grid { grid-template-columns: 1fr; gap: 40px; } }

/* ===== Vision ===== */
.vision { background: var(--bg-soft); }
.vision-card { max-width: 880px; margin: 0 auto; text-align: center; padding: 64px 32px; background: var(--surface); border-radius: 24px; box-shadow: var(--shadow-md); position: relative; }
.vision-card::before { content: '"'; position: absolute; top: -20px; left: 40px; font-family: var(--font-serif); font-size: 8rem; color: var(--accent); line-height: 1; }
.vision-card h2 { font-style: italic; margin-bottom: 24px; }
.vision-card .vision-en { font-family: var(--font-serif); color: var(--ink-muted); font-size: 1.05rem; margin-top: 12px; }

/* ===== Service grid ===== */
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.service-card {
  background: var(--surface); border-radius: var(--radius-card);
  padding: 36px 28px; box-shadow: var(--shadow-sm);
  transition: all 0.3s var(--ease);
  border-top: 4px solid var(--accent);
}
.service-card:nth-child(2) { border-top-color: var(--primary); }
.service-card:nth-child(3) { border-top-color: var(--gold); }
.service-card:nth-child(4) { border-top-color: var(--c-family); }
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.service-icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: var(--bg-tint); color: var(--primary);
  display: grid; place-items: center; margin-bottom: 20px;
}
.service-icon svg { width: 28px; height: 28px; stroke: currentColor; stroke-width: 1.5; fill: none; }
.service-card h3 { font-family: var(--font-sans); font-size: 1.15rem; margin-bottom: 12px; color: var(--ink); }
.service-card p { font-size: 0.95rem; line-height: 1.7; }
@media (max-width: 900px) { .service-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .service-grid { grid-template-columns: 1fr; } }

/* ===== Stats ===== */
.stats { background: var(--primary); color: #fff; padding: 72px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.stat-num { font-family: var(--font-serif); font-size: clamp(2.4rem, 5vw, 3.6rem); color: var(--gold); line-height: 1; margin-bottom: 12px; }
.stat-label { font-size: 0.92rem; opacity: .9; letter-spacing: 0.04em; }
@media (max-width: 700px) { .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; } }

/* ===== Clients ===== */
.clients { background: var(--bg); }
.client-wall { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 16px; align-items: center; }
.client-wall img { width: 100%; height: 80px; object-fit: contain; padding: 12px; background: var(--surface); border-radius: var(--radius-sm); border: 1px solid var(--line); filter: grayscale(20%); transition: all 0.2s var(--ease); }
.client-wall img:hover { filter: grayscale(0); transform: translateY(-2px); box-shadow: var(--shadow-sm); }

/* ===== Products listing ===== */
.product-filter { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; margin-bottom: 48px; }
.filter-chip { padding: 10px 22px; border-radius: var(--radius-btn); background: var(--surface); border: 1px solid var(--line); color: var(--ink-soft); font-size: 0.9rem; cursor: pointer; transition: all 0.2s var(--ease); }
.filter-chip:hover { border-color: var(--primary); color: var(--primary); }
.filter-chip[aria-pressed="true"] { background: var(--primary); color: #fff; border-color: var(--primary); }

.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.product-card {
  background: var(--surface); border-radius: var(--radius-card);
  overflow: hidden; box-shadow: var(--shadow-sm);
  transition: all 0.3s var(--ease); position: relative;
  display: flex; flex-direction: column;
  text-decoration: none; color: inherit;
  border-top: 6px solid var(--c-custom);
}
.product-card[data-key="traditional"] { border-top-color: var(--c-traditional); }
.product-card[data-key="family"]     { border-top-color: var(--c-family); }
.product-card[data-key="culture"]    { border-top-color: var(--c-culture); }
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.product-card-img { aspect-ratio: 16/10; overflow: hidden; }
.product-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s var(--ease); }
.product-card:hover .product-card-img img { transform: scale(1.05); }
.product-card-body { padding: 28px 28px 32px; flex: 1; display: flex; flex-direction: column; }
.product-card-tag { display: inline-block; padding: 4px 12px; background: var(--bg-tint); color: var(--primary); font-size: 0.78rem; border-radius: var(--radius-btn); margin-bottom: 12px; letter-spacing: 0.06em; }
.product-card[data-key="traditional"] .product-card-tag { background: #FAF1DD; color: #8B6A2C; }
.product-card[data-key="family"] .product-card-tag { background: #FAE4EA; color: #A24C66; }
.product-card[data-key="culture"] .product-card-tag { background: #F7E0DA; color: #98422F; }
.product-card h3 { font-family: var(--font-serif); font-size: 1.5rem; margin-bottom: 12px; }
.product-card .desc { color: var(--ink-muted); margin-bottom: 20px; flex: 1; }
.product-card .highlights { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 24px; }
.product-card .highlights span { font-size: 0.78rem; padding: 4px 10px; background: var(--bg-soft); color: var(--ink-soft); border-radius: var(--radius-sm); }
.product-card .card-cta { display: inline-flex; align-items: center; gap: 8px; color: var(--primary); font-weight: 600; font-size: 0.95rem; }
.product-card:hover .card-cta { color: var(--accent); }
.product-card .card-cta svg { width: 16px; height: 16px; transition: transform 0.2s var(--ease); }
.product-card:hover .card-cta svg { transform: translateX(4px); }
@media (max-width: 900px) { .product-grid { grid-template-columns: 1fr; } }

/* ===== 首页资源位：横向排列，排不开可左右滑动 ===== */
.product-grid-scroll {
  display: flex;
  flex-wrap: nowrap;
  gap: 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 4px 4px 20px;
}
.product-grid-scroll::-webkit-scrollbar { display: none; }
.product-grid-scroll .product-card {
  flex: 1 0 260px;
  scroll-snap-align: start;
}
@media (max-width: 900px) {
  .product-grid-scroll { gap: 16px; }
}

/* ===== Product detail ===== */
.product-hero { position: relative; min-height: 480px; display: grid; place-items: end start; padding: 80px 0 64px; color: #fff; isolation: isolate; }
.product-hero-bg { position: absolute; inset: 0; z-index: -1; }
.product-hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.product-hero-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.1) 0%, rgba(0,0,0,.6) 100%); }
.product-hero .container { position: relative; z-index: 1; }
.product-hero .tag { display: inline-block; padding: 6px 14px; background: rgba(255,255,255,.18); border: 1px solid rgba(255,255,255,.4); border-radius: var(--radius-btn); font-size: 0.82rem; backdrop-filter: blur(8px); margin-bottom: 16px; letter-spacing: 0.08em; }
.product-hero h1 { color: #fff; max-width: 800px; margin-bottom: 16px; }
.product-hero p { color: rgba(255,255,255,.92); font-size: 1.1rem; max-width: 700px; }
.product-hero-actions { display: flex; gap: 12px; margin-top: 28px; }

.product-section { padding: 80px 0; }
.product-section.alt { background: var(--bg-soft); }
.product-section .container > .layout-2 { display: grid; grid-template-columns: 1.2fr 1fr; gap: 56px; align-items: start; }
@media (max-width: 900px) { .product-section .container > .layout-2 { grid-template-columns: 1fr; gap: 32px; } }

.itinerary-list { display: grid; gap: 16px; margin-top: 24px; }
.itinerary-item { display: grid; grid-template-columns: 60px 1fr; gap: 20px; padding: 20px; background: var(--surface); border-radius: var(--radius-card); border-left: 4px solid var(--accent); }
.itinerary-item .day { font-family: var(--font-serif); font-size: 1.6rem; color: var(--accent); line-height: 1; }
.itinerary-item h4 { font-family: var(--font-sans); font-size: 1.1rem; margin-bottom: 8px; color: var(--ink); }
.itinerary-item p { font-size: 0.95rem; color: var(--ink-muted); }

.cost-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.cost-box { background: var(--surface); border-radius: var(--radius-card); padding: 28px; box-shadow: var(--shadow-sm); }
.cost-box h3 { font-family: var(--font-serif); margin-bottom: 16px; color: var(--ink); }
.cost-box ul { list-style: none; display: grid; gap: 12px; }
.cost-box li { padding-left: 18px; position: relative; color: var(--ink-muted); line-height: 1.6; }
.cost-box li::before { content: ''; position: absolute; left: 0; top: 10px; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.flight-box { margin-top: 24px; background: var(--bg-soft); border-radius: var(--radius-card); padding: 24px 28px; }
.flight-box h3 { font-family: var(--font-serif); margin-bottom: 8px; color: var(--ink); }
.flight-box p { color: var(--ink-muted); line-height: 1.7; }
@media (max-width: 700px) { .cost-grid { grid-template-columns: 1fr; } }

.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 24px; }
.gallery-grid img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: var(--radius-card); }
@media (max-width: 700px) { .gallery-grid { grid-template-columns: repeat(2, 1fr); } }

/* ===== Form ===== */
.lead-form { background: var(--surface); padding: 36px; border-radius: var(--radius-card); box-shadow: var(--shadow-md); border-top: 4px solid var(--accent); }
.lead-form h3 { font-family: var(--font-serif); margin-bottom: 8px; }
.lead-form .form-lead { color: var(--ink-muted); margin-bottom: 24px; font-size: 0.95rem; }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 560px) { .field-row { grid-template-columns: 1fr; } }
.field label { font-size: 0.85rem; color: var(--ink-soft); font-weight: 500; }
.field label .req { color: var(--accent); }
.field input, .field select, .field textarea {
  padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: var(--bg); transition: all 0.2s var(--ease); font-size: 0.95rem;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--primary); background: #fff; box-shadow: 0 0 0 3px rgba(31,58,46,.12); }
.field textarea { resize: vertical; min-height: 80px; }
.field .error-msg { font-size: 0.8rem; color: var(--warn); min-height: 1em; }
.field.invalid input, .field.invalid select { border-color: var(--warn); }
.options { display: flex; flex-wrap: wrap; gap: 8px; }
.options label { display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; border: 1px solid var(--line); border-radius: var(--radius-btn); cursor: pointer; font-size: 0.88rem; background: var(--bg); transition: all 0.15s var(--ease); }
.options label:hover { border-color: var(--primary); }
.options input[type="checkbox"], .options input[type="radio"] { width: 16px; height: 16px; accent-color: var(--primary); }
.options input:checked + span, .options label:has(input:checked) { background: var(--bg-tint); border-color: var(--primary); color: var(--primary); font-weight: 500; }
.form-actions { display: flex; gap: 12px; align-items: center; margin-top: 8px; }
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(100px);
  background: var(--primary); color: #fff; padding: 16px 24px; border-radius: var(--radius-btn);
  box-shadow: var(--shadow-lg); opacity: 0; transition: all 0.3s var(--ease); z-index: 100;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ===== Contact ===== */
.contact-head { max-width: 760px; margin-bottom: 44px; }
.contact-head h1 { margin-bottom: 16px; }
.contact-head p { color: var(--ink-muted); font-size: 1.05rem; }
.contact-channels { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 48px; }
.contact-main { display: grid; grid-template-columns: 427px 1fr; gap: 28px; align-items: start; }

/* ===== Before You Send 深色侧栏卡片（照搬参考站） ===== */
.contact-side-card {
  display: flex; flex-direction: column; gap: 20px;
  padding: 42px 36px;
  background: #1F2A37;
  border-radius: 28px;
  box-shadow: 0 24px 64px rgba(16,34,53,.18);
  color: #fff;
}
.contact-side-card h2 { color: #fff; font-size: 26px; font-weight: 600; line-height: 1.18; margin: 0 0 14px; }
.contact-side-note { color: rgba(255,255,255,.72); font-size: 15px; line-height: 1.72; margin: 0 0 28px; }
.contact-side-list { display: grid; gap: 18px; }
.contact-side-list > div { padding-top: 18px; border-top: 1px solid rgba(255,255,255,.13); }
.contact-side-list strong { display: block; color: #fff; font-size: 14px; font-weight: 700; line-height: 1.65; margin-bottom: 7px; }
.contact-side-list span { display: block; color: rgba(255,255,255,.68); font-size: 14px; line-height: 1.6; }
.contact-office-box { padding: 20px 18px; background: rgba(25,125,61,.22); border-radius: 18px; }
.contact-office-box > strong { display: block; color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.contact-office-box p { color: rgba(255,255,255,.72); font-size: 13px; line-height: 1.55; margin: 10px 0 0; }
.contact-office-box b { color: #fff; font-size: 13px; font-weight: 700; }

@media (max-width: 900px) {
  .contact-main { grid-template-columns: 1fr; gap: 18px; }
  .contact-side-card { padding: 24px 20px; border-radius: 22px; }
  .contact-side-card h2 { font-size: 22px; }
}
@media (max-width: 700px) {
  .contact-channels { grid-template-columns: 1fr; }
}
.contact-channel { display: flex; gap: 16px; padding: 20px; background: var(--surface); border-radius: var(--radius-card); box-shadow: var(--shadow-sm); }
.contact-channel-icon { width: 44px; height: 44px; border-radius: 12px; background: var(--bg-tint); color: var(--primary); display: grid; place-items: center; flex-shrink: 0; }
.contact-channel-icon svg { width: 22px; height: 22px; stroke: currentColor; stroke-width: 1.5; fill: none; }
.contact-channel h4 { font-family: var(--font-sans); font-size: 0.85rem; color: var(--ink-muted); margin-bottom: 4px; letter-spacing: 0.06em; text-transform: uppercase; }
.contact-channel p { color: var(--ink); font-size: 1rem; margin: 0; word-break: break-word; }

.contact-image { border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-md); margin-top: 40px; }
.contact-image img { width: 100%; height: 360px; object-fit: cover; }

/* ===== Footer ===== */
.site-footer { background: var(--primary); color: #E8F1E8; padding: 64px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 48px; }
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer h4 { font-family: var(--font-sans); font-size: 0.85rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gold); margin-bottom: 16px; }
.site-footer p, .site-footer a { color: rgba(232,241,232,.78); font-size: 0.92rem; line-height: 1.8; }
.site-footer a:hover { color: #fff; }
.site-footer ul li { margin-bottom: 8px; }
.footer-bottom { border-top: 1px solid rgba(232,241,232,.18); margin-top: 48px; padding-top: 24px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 0.85rem; color: rgba(232,241,232,.6); }

/* ===== Utilities ===== */
.text-center { text-align: center; }
.mt-2 { margin-top: 16px; } .mt-4 { margin-top: 32px; }
.mb-2 { margin-bottom: 16px; } .mb-4 { margin-bottom: 32px; }
.fade-in { animation: fadeUp 0.6s var(--ease); }
@keyframes fadeUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
/* ===== Tours: product-card colors for new product keys ===== */
.product-card[data-key="biz"]  { border-top-color: #2563EB; }
.product-card[data-key="scn"]  { border-top-color: #0E9F8A; }
.product-card[data-key="food"] { border-top-color: #D97706; }
.product-card[data-key="biz"] .product-card-tag  { background: #E8F0FE; color: #1D4ED8; }
.product-card[data-key="scn"] .product-card-tag  { background: #E0F5F1; color: #0B7C6D; }
.product-card[data-key="food"] .product-card-tag { background: #FBEEDA; color: #92400E; }

/* ===== Experience item cards (product detail pages) ===== */
.exp-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 8px; }
.exp-card { background: var(--surface); border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease); }
.exp-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.exp-card-img { aspect-ratio: 16/9; overflow: hidden; }
.exp-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s var(--ease); }
.exp-card:hover .exp-card-img img { transform: scale(1.05); }
.exp-card-body { padding: 20px 22px 24px; }
.exp-num { display: inline-block; font-family: var(--font-serif); font-size: 1.05rem; color: var(--accent); margin-bottom: 6px; letter-spacing: 0.08em; }
.exp-card h4 { font-family: var(--font-sans); font-size: 1.12rem; margin-bottom: 8px; color: var(--ink); }
.exp-card p { font-size: 0.95rem; color: var(--ink-muted); }
@media (max-width: 900px) { .exp-grid { grid-template-columns: 1fr; } }

/* ===== 报名登记弹窗 ===== */
.reg-modal { position: fixed; inset: 0; z-index: 1000; display: none; align-items: center; justify-content: center; padding: 24px; }
.reg-modal.open { display: flex; }
.reg-overlay { position: absolute; inset: 0; background: rgba(18, 30, 25, .6); }
.reg-dialog { position: relative; width: 100%; max-width: 720px; max-height: 88vh; background: #fff; border-radius: 18px; box-shadow: 0 30px 80px rgba(0,0,0,.28); display: flex; flex-direction: column; overflow: hidden; animation: regIn .25s var(--ease); }
@keyframes regIn { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
.reg-close { position: absolute; top: 14px; right: 16px; z-index: 2; width: 36px; height: 36px; border-radius: 50%; border: none; background: rgba(31,58,46,.08); color: var(--primary); font-size: 1.4rem; line-height: 1; cursor: pointer; transition: background .2s var(--ease); }
.reg-close:hover { background: rgba(31,58,46,.16); }
.reg-head { padding: 24px 28px 16px; border-bottom: 1px solid var(--border, #eee); }
.reg-head h2 { font-family: var(--font-sans); font-size: 1.25rem; color: var(--primary); margin-bottom: 6px; }
.reg-tip { font-size: .82rem; color: var(--accent); line-height: 1.5; }
.reg-form { display: flex; flex-direction: column; flex: 1; min-height: 0; }
.reg-scroll { overflow-y: auto; padding: 8px 28px 8px; flex: 1; min-height: 0; }
.reg-section { padding: 18px 0; border-bottom: 1px solid #f0f0f0; }
.reg-section:last-child { border-bottom: none; }
.reg-section h3 { font-family: var(--font-sans); font-size: .95rem; color: var(--primary); margin-bottom: 14px; letter-spacing: .02em; }
.reg-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 16px; }
.reg-field { display: flex; flex-direction: column; }
.reg-field.reg-wide { grid-column: 1 / -1; }
.reg-field label { font-size: .82rem; color: var(--ink-soft); margin-bottom: 5px; }
.reg-field .req { color: var(--accent); margin-left: 2px; }
.reg-field input { width: 100%; padding: 10px 12px; border: 1px solid #e2e6e2; border-radius: 8px; font-size: .9rem; color: var(--ink); background: #fff; }
.reg-field input:focus { border-color: var(--primary); outline: none; box-shadow: 0 0 0 3px rgba(31,58,46,.08); }
.reg-field input.invalid { border-color: var(--accent); }
.reg-options { display: flex; flex-wrap: wrap; gap: 8px; }
.reg-options label { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border: 1px solid #e2e6e2; border-radius: 20px; font-size: .85rem; color: var(--ink); cursor: pointer; white-space: nowrap; transition: all .15s var(--ease); }
.reg-options label:hover { border-color: var(--primary); }
.reg-options input { accent-color: var(--primary); }
.reg-compliance { display: flex; flex-direction: column; gap: 10px; }
.reg-compliance label { display: flex; gap: 10px; align-items: flex-start; font-size: .85rem; line-height: 1.6; color: var(--ink-soft); padding: 12px 14px; background: #fafbfa; border: 1px solid #eee; border-radius: 10px; cursor: pointer; }
.reg-compliance input { margin-top: 3px; accent-color: var(--primary); flex-shrink: 0; }
.reg-compliance label.invalid { border-color: var(--accent); background: #fff6f4; }
.reg-actions { padding: 16px 28px 24px; border-top: 1px solid #f0f0f0; }
.reg-actions .btn { width: 100%; justify-content: center; }
@media (max-width: 600px) { .reg-grid { grid-template-columns: 1fr; } .reg-head { padding: 20px 20px 14px; } .reg-scroll { padding: 4px 20px; } .reg-actions { padding: 14px 20px 20px; } }

/* 导航里的报名按钮 */
.nav-register { padding: 8px 16px; font-size: .85rem; }
@media (max-width: 720px) {
  .nav-tabs .nav-register { align-self: center; margin-top: 8px; padding: 10px 28px; }
}

/* ===== Hero 背景轮播 ===== */
.hero-bg img.hero-slide { position: absolute; inset: 0; opacity: 0; transition: opacity 1.2s ease; }
.hero-bg img.hero-slide.active { opacity: 1; }

/* ===== Top Tours / Destinations 通用 ===== */
.text-center { text-align: center; }

/* ===== Travel to China, Made Easier ===== */
.easier-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; max-width: 960px; margin: 0 auto; }
.easier-item { display: flex; flex-direction: column; align-items: center; gap: 14px; padding: 28px 18px; background: var(--surface); border-radius: var(--radius-card); box-shadow: var(--shadow-sm); text-align: center; font-weight: 600; font-size: .95rem; color: var(--ink); }
.easier-icon { width: 44px; height: 44px; border-radius: 12px; background: var(--bg-tint); display: grid; place-items: center; }
.easier-icon svg { width: 22px; height: 22px; stroke: var(--primary); fill: none; stroke-width: 1.6; }

/* ===== Popular Destinations ===== */
.dest-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.dest-card { background: var(--surface); border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-sm); transition: transform .3s var(--ease), box-shadow .3s var(--ease); }
.dest-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.dest-card-img { aspect-ratio: 16/10; overflow: hidden; }
.dest-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s var(--ease); }
.dest-card:hover .dest-card-img img { transform: scale(1.05); }
.dest-card h3 { font-family: var(--font-serif); font-size: 1.25rem; padding: 18px 20px 0; }
.dest-card p { padding: 8px 20px 20px; font-size: .92rem; color: var(--ink-muted); }

/* ===== Guest Stories（用户评价） ===== */
.rev-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.rev-card { background: var(--surface); border-radius: var(--radius-card); padding: 28px 26px; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; gap: 14px; }
.rev-stars { color: #F5A623; letter-spacing: 2px; font-size: 1rem; }
.rev-quote { font-size: .95rem; line-height: 1.7; color: var(--ink-soft); flex: 1; }
.rev-meta { font-weight: 600; font-size: .88rem; color: var(--ink); }
.rev-badge { font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-muted); border-top: 1px solid #eee; padding-top: 12px; }

/* ===== Speak With a Specialist ===== */
/* ===== 导游模块（照抄参考站深色卡片 UI） ===== */
.specialists { background: #102235; }
.specialists .section-head h2 { color: #fff; }
.specialists .section-head p { color: rgba(255,255,255,.72); }
.specialists .section-divider { background: rgba(255,255,255,.25); }

.guide-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 36px 24px; }
.guide-card { text-align: center; }
.guide-photo { width: 130px; height: 150px; margin: 0 auto 14px; border-radius: 28px; overflow: hidden; }
.guide-photo img { width: 100%; height: 100%; object-fit: cover; }
.guide-card h4 { font-family: var(--font-sans); font-size: 18px; font-weight: 600; margin: 12px 0 4px; color: #fff; }
.guide-card p { font-size: 13px; color: rgba(255,255,255,.68); }

@media (max-width: 900px) {
  .easier-grid { grid-template-columns: repeat(2, 1fr); }
  .dest-grid { grid-template-columns: repeat(2, 1fr); }
  .rev-grid { grid-template-columns: 1fr; }
  .guide-grid { grid-template-columns: repeat(2, 1fr); gap: 28px 16px; }
}
@media (max-width: 600px) {
  .easier-grid { grid-template-columns: 1fr; }
  .dest-grid { grid-template-columns: 1fr; }
}

/* --- 逐日配图 / 餐厅酒店区块 --- */
.itinerary-photos { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 10px; margin-top: 14px; }
.itinerary-photos img { width: 100%; height: 120px; object-fit: cover; border-radius: 10px; display: block; }
.stay-note { color: var(--ink-muted); font-size: .9rem; margin: 0 0 22px; }
.stay-group { background: var(--surface); border-radius: var(--radius-card); padding: 22px 24px; box-shadow: var(--shadow-sm); margin-bottom: 18px; }
.stay-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 16px; margin-bottom: 14px; }
.stay-head h3 { font-family: var(--font-serif); font-size: 1.05rem; color: var(--ink); margin: 0; }
.stay-head p { color: var(--ink-muted); font-size: .92rem; margin: 0; }
.stay-photos { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; }
.stay-photos img { width: 100%; height: 140px; object-fit: cover; border-radius: 10px; display: block; }

/* --- 图片骨架屏：占位微光 + 加载后淡入（无 JS 时自动降级为直接显示） --- */
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }
html.js-skeleton img {
  opacity: 0;
  transition: opacity 0.5s ease;
  background: linear-gradient(100deg, #efece6 40%, #f8f5ef 50%, #efece6 60%);
  background-size: 200% 100%;
  animation: shimmer 1.6s linear infinite;
}
html.js-skeleton img.loaded { opacity: 1; animation: none; background: none; }