/* ===========================
   CSS变量 & 基础重置
=========================== */
:root {
  --blue:       #2563EB;
  --blue-dark:  #1D4ED8;
  --blue-light: #EFF6FF;
  --amber:      #F59E0B;
  --amber-dark: #D97706;
  --green:      #10B981;
  --purple:     #8B5CF6;
  --red:        #EF4444;
  --orange:     #F97316;
  --pink:       #EC4899;

  --bg:         #F1F5F9;
  --card:       #FFFFFF;
  --text:       #1E293B;
  --text-2:     #475569;
  --text-3:     #94A3B8;
  --border:     #E2E8F0;

  --shadow:     0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:  0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -1px rgba(0,0,0,.06);
  --shadow-lg:  0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -2px rgba(0,0,0,.05);
  --shadow-xl:  0 20px 25px -5px rgba(0,0,0,.1), 0 10px 10px -5px rgba(0,0,0,.04);

  --radius:     12px;
  --radius-lg:  20px;
  --radius-xl:  28px;

  --font:       'Noto Sans SC', system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ===========================
   页面切换
=========================== */
.page { display: none; }
.page.active { display: block; }

/* ===========================
   ✈️ 输入页 Hero
=========================== */
.hero-bg {
  min-height: 100vh;
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 30%, #1a56a0 60%, #0e7490 100%);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top, rgba(37,99,235,.3) 0%, transparent 60%),
              radial-gradient(ellipse at bottom right, rgba(16,185,129,.2) 0%, transparent 50%);
  pointer-events: none;
}

/* 浮动图标动画 */
.floating-icons { position: absolute; inset: 0; pointer-events: none; }
.fi {
  position: absolute;
  left: var(--x);
  top: var(--y);
  font-size: 1.8rem;
  animation: floatIcon 6s ease-in-out infinite;
  animation-delay: var(--d);
  opacity: .25;
}
@keyframes floatIcon {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50%       { transform: translateY(-20px) rotate(10deg); }
}

.hero-content {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 680px;
  margin: 0 auto;
  padding: 40px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

/* 品牌 */
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  color: #fff;
}
.brand-icon { font-size: 3rem; }
.brand-text h1 { font-size: 2rem; font-weight: 900; letter-spacing: .5px; }
.brand-text p { font-size: .85rem; opacity: .7; letter-spacing: 2px; text-transform: uppercase; }

.hero-tagline {
  color: rgba(255,255,255,.85);
  font-size: 1.1rem;
  text-align: center;
  line-height: 1.8;
}

/* 表单卡片 */
.form-card {
  width: 100%;
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-xl);
}

.form-card-header { margin-bottom: 24px; }
.form-card-header h2 { font-size: 1.25rem; font-weight: 700; color: var(--text); }
.form-hint { font-size: .82rem; color: var(--text-3); margin-top: 4px; }

/* 字段 */
.field-group {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 14px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  transition: border-color .2s, box-shadow .2s;
  position: relative;
  background: #fafafa;
}
.field-group:focus-within {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37,99,235,.1);
  background: #fff;
}
.field-group.filled { border-color: var(--green); background: #f0fdf4; }

.field-icon { font-size: 1.25rem; line-height: 1; margin-top: 2px; flex-shrink: 0; }
.field-body { flex: 1; }
.field-body label { display: block; font-size: .75rem; font-weight: 600; color: var(--text-2); margin-bottom: 2px; text-transform: uppercase; letter-spacing: .5px; }
.field-body input {
  width: 100%;
  border: none;
  background: transparent;
  font-size: .95rem;
  color: var(--text);
  outline: none;
  font-family: var(--font);
}
.field-body input::placeholder { color: var(--text-3); }

.field-tag {
  position: absolute;
  right: 12px;
  top: 12px;
  font-size: .65rem;
  padding: 2px 8px;
  border-radius: 20px;
  background: var(--border);
  color: var(--text-3);
}

/* 双列 */
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.field-row .field-group { margin-bottom: 0; }

/* 偏好标签 */
.pref-group { flex-direction: column; align-items: flex-start; }
.pref-group .field-icon { margin-bottom: 4px; }
.pref-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; }
.pref-tag {
  display: flex;
  align-items: center;
  cursor: pointer;
}
.pref-tag input { display: none; }
.pref-tag span {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 30px;
  border: 2px solid var(--border);
  font-size: .82rem;
  background: #fff;
  transition: all .15s;
  white-space: nowrap;
}
.pref-tag input:checked + span {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
}
.pref-tag span:hover { border-color: var(--blue); }

/* 验证提示 */
.validate-msg {
  margin-top: 8px;
  padding: 10px 14px;
  background: #fef2f2;
  border: 1px solid #fca5a5;
  border-radius: 8px;
  color: var(--red);
  font-size: .85rem;
}

/* 生成按钮 */
.btn-generate {
  width: 100%;
  margin-top: 20px;
  padding: 16px;
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  color: #fff;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: transform .15s, box-shadow .15s, opacity .15s;
  box-shadow: 0 4px 14px rgba(37,99,235,.4);
}
.btn-generate:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(37,99,235,.5); }
.btn-generate:active { transform: translateY(0); }
.btn-generate:disabled { opacity: .6; transform: none; }
.btn-sparkle { font-size: 1.1rem; }
.btn-arrow { margin-left: auto; opacity: .7; }

/* 特性标签 */
.feature-pills { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.pill {
  padding: 7px 16px;
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 30px;
  color: rgba(255,255,255,.9);
  font-size: .8rem;
  backdrop-filter: blur(8px);
}

/* ===========================
   ⏳ 加载页
=========================== */
#loading-section {
  min-height: 100vh;
  display: none;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0f172a, #1e3a5f);
}
#loading-section.active { display: flex; }

.loading-wrap {
  text-align: center;
  color: #fff;
  padding: 40px 20px;
}

/* 飞机动画 */
.loading-plane { margin-bottom: 32px; }
.plane-track {
  width: 200px;
  height: 60px;
  position: relative;
  margin: 0 auto;
}
.plane-dot {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 2rem;
  animation: flyPlane 3s ease-in-out infinite;
}
.plane-trail {
  position: absolute;
  top: 50%;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(to right, transparent, rgba(255,255,255,.5));
  animation: trailGrow 3s ease-in-out infinite;
}
@keyframes flyPlane {
  0%   { left: 0; }
  100% { left: calc(100% - 40px); }
}
@keyframes trailGrow {
  0%   { width: 0; opacity: 0; }
  50%  { width: 100%; opacity: 1; }
  100% { width: 100%; opacity: 0; }
}

.loading-title { font-size: 1.4rem; font-weight: 700; margin-bottom: 8px; }
.loading-sub { font-size: .9rem; opacity: .6; margin-bottom: 32px; }

.loading-steps { display: flex; flex-direction: column; gap: 12px; max-width: 300px; margin: 0 auto 24px; text-align: left; }
.step-item { display: flex; align-items: center; gap: 12px; opacity: .4; transition: opacity .5s; }
.step-item.active { opacity: 1; }
.step-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--text-3);
  flex-shrink: 0;
  transition: background .3s;
}
.step-item.active .step-dot { background: var(--amber); box-shadow: 0 0 8px var(--amber); animation: pulse 1s ease-in-out infinite; }
.step-item.done .step-dot { background: var(--green); }
.step-item.done { opacity: .7; }
@keyframes pulse { 0%,100% { transform: scale(1); } 50% { transform: scale(1.3); } }

.loading-note { font-size: .78rem; opacity: .5; }

/* ===========================
   📄 结果页 - 顶栏
=========================== */
.result-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.nav-back, .nav-print {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: .85rem;
  font-weight: 500;
  transition: background .15s;
}
.nav-back { background: var(--bg); color: var(--text-2); }
.nav-back:hover { background: var(--border); }
.nav-print { background: var(--blue-light); color: var(--blue); }
.nav-print:hover { background: var(--blue); color: #fff; }
.nav-title { font-weight: 700; font-size: .95rem; color: var(--text); max-width: 300px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ===========================
   🖼 Hero Banner
=========================== */
.r-hero {
  height: 360px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #1e3a5f, #0e7490);
  display: flex;
  align-items: flex-end;
}
.r-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.7) 0%, rgba(0,0,0,.2) 100%);
}
.r-hero-content {
  position: relative;
  z-index: 5;
  padding: 32px 40px;
  color: #fff;
  width: 100%;
}
.r-hero-content h1 { font-size: 2rem; font-weight: 900; margin-bottom: 20px; text-shadow: 0 2px 8px rgba(0,0,0,.4); }
.r-stats { display: flex; gap: 32px; flex-wrap: wrap; }
.r-stat { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; }
.rs-icon { font-size: 1rem; }
.rs-val { font-size: 1.1rem; font-weight: 700; }
.rs-label { font-size: .72rem; opacity: .7; text-transform: uppercase; letter-spacing: .5px; }

/* ===========================
   通用 Section
=========================== */
.r-section { padding: 16px 0; }
.r-section-inner { max-width: 960px; margin: 0 auto; padding: 32px 24px; }

.sec-title {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 8px;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--blue);
  display: inline-block;
}
.sec-sub { font-size: .85rem; color: var(--text-3); margin-bottom: 20px; }

/* 概览 */
.r-summary { font-size: .95rem; color: var(--text-2); line-height: 1.9; margin: 16px 0; }
.r-highlights { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.highlight-tag {
  padding: 6px 16px;
  background: linear-gradient(135deg, var(--blue-light), #dbeafe);
  border: 1px solid #bfdbfe;
  border-radius: 30px;
  font-size: .82rem;
  color: var(--blue-dark);
  font-weight: 500;
}

/* ===========================
   🗺️ 地图
=========================== */
.map-section { background: linear-gradient(135deg, #f0f7ff, #f8faff); }
#travel-map {
  height: 460px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  z-index: 1;
}
.map-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}
.legend-item { display: flex; align-items: center; gap: 6px; font-size: .82rem; color: var(--text-2); }
.legend-dot { width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0; }

/* 地图自定义标记 */
.map-marker {
  width: 32px; height: 32px;
  border-radius: 50% 50% 50% 0;
  transform: rotate(-45deg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: .8rem;
  box-shadow: 0 2px 8px rgba(0,0,0,.3);
  border: 2px solid rgba(255,255,255,.8);
}
.map-marker-inner { transform: rotate(45deg); }

/* ===========================
   📋 日程
=========================== */
.day-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 20px; }
.day-tab {
  padding: 10px 20px;
  border-radius: 30px;
  border: 2px solid var(--border);
  font-size: .85rem;
  font-weight: 600;
  color: var(--text-2);
  transition: all .15s;
  background: #fff;
}
.day-tab.active {
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
}
.day-tab:hover:not(.active) { border-color: var(--blue); color: var(--blue); }

.day-panel { display: none; }
.day-panel.active { display: block; }

.day-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  padding: 16px 20px;
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  border-radius: var(--radius);
  color: #fff;
}
.day-num { font-size: 2rem; font-weight: 900; opacity: .8; }
.day-theme { font-size: 1.05rem; font-weight: 700; }

.day-cover {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 20px;
}

/* 时间轴 */
.timeline { position: relative; padding-left: 0; }
.tl-item {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 0;
  margin-bottom: 4px;
}
.tl-time {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 16px;
  position: relative;
}
.tl-time::after {
  content: '';
  position: absolute;
  top: 36px;
  bottom: -4px;
  left: 50%;
  width: 2px;
  background: var(--border);
  transform: translateX(-50%);
}
.tl-item:last-child .tl-time::after { display: none; }
.tl-dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--blue);
  border: 2px solid #fff;
  box-shadow: 0 0 0 2px var(--blue);
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}
.tl-time-label { font-size: .7rem; color: var(--text-3); margin-top: 4px; font-weight: 600; }

.tl-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 16px;
  margin: 8px 0 8px 12px;
  box-shadow: var(--shadow);
  border-left: 3px solid var(--blue);
}
.tl-activity { font-size: .95rem; font-weight: 700; color: var(--text); margin-bottom: 2px; }
.tl-loc { font-size: .78rem; color: var(--text-3); margin-bottom: 6px; }
.tl-loc::before { content: '📍 '; }
.tl-desc { font-size: .85rem; color: var(--text-2); line-height: 1.7; margin-bottom: 8px; }
.tl-meta { display: flex; gap: 12px; flex-wrap: wrap; }
.tl-tag {
  padding: 3px 10px;
  border-radius: 20px;
  font-size: .72rem;
  font-weight: 500;
}
.tl-tag.duration { background: #eff6ff; color: var(--blue); }
.tl-tag.cost { background: #fef9ee; color: var(--amber-dark); }
.tl-tip { font-size: .78rem; color: var(--green); margin-top: 6px; }
.tl-tip::before { content: '💡 '; }

/* 餐饮日程 */
.day-meals { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin: 20px 0; }
.meal-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow);
}
.meal-type { font-size: .7rem; text-transform: uppercase; letter-spacing: .5px; font-weight: 700; color: var(--text-3); margin-bottom: 6px; }
.meal-name { font-size: .9rem; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.meal-desc { font-size: .78rem; color: var(--text-2); line-height: 1.5; margin-bottom: 6px; }
.meal-price { font-size: .78rem; color: var(--amber-dark); font-weight: 600; }
.meal-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 8px;
  font-size: .72rem;
  color: var(--blue);
  font-weight: 600;
  padding: 4px 10px;
  background: var(--blue-light);
  border-radius: 20px;
  transition: background .15s;
}
.meal-link:hover { background: var(--blue); color: #fff; }

/* 住宿小卡 */
.night-hotel {
  margin: 16px 0;
  padding: 16px;
  background: linear-gradient(135deg, #fff7ed, #fff);
  border: 1px solid #fed7aa;
  border-radius: var(--radius);
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.night-hotel .hotel-ico { font-size: 1.5rem; }
.hotel-info-mini h4 { font-size: .9rem; font-weight: 700; color: var(--text); }
.hotel-info-mini p { font-size: .8rem; color: var(--text-2); margin-top: 2px; }
.hotel-info-mini .price { font-size: .8rem; color: var(--amber-dark); font-weight: 600; margin-top: 4px; }

/* ===========================
   🍽️ 餐饮 & 🏨 住宿卡片
=========================== */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; margin-top: 16px; }

.r-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform .2s, box-shadow .2s;
  cursor: pointer;
  display: flex;
  flex-direction: column;
}
.r-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-xl); }

.card-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  background: linear-gradient(135deg, var(--blue), #0e7490);
}
.card-img-placeholder {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  background: linear-gradient(135deg, #dbeafe, #e0f2fe);
}

.card-body { padding: 16px; flex: 1; display: flex; flex-direction: column; }
.card-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: .7rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.badge-food { background: #fff7ed; color: #c2410c; }
.badge-hotel { background: #f0fdf4; color: #065f46; }

.card-name { font-size: 1rem; font-weight: 800; color: var(--text); margin-bottom: 4px; }
.card-cuisine { font-size: .78rem; color: var(--text-3); margin-bottom: 8px; }
.card-specialty { font-size: .82rem; color: var(--text-2); line-height: 1.5; flex: 1; }
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.card-price { font-size: .88rem; font-weight: 700; color: var(--amber-dark); }
.card-link {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: .78rem;
  font-weight: 700;
  transition: all .15s;
}
.card-link-dp { background: #fff2f2; color: #c0392b; }
.card-link-dp:hover { background: #c0392b; color: #fff; }
.card-link-ctrip { background: #e0f2fe; color: #0369a1; }
.card-link-ctrip:hover { background: #0369a1; color: #fff; }

/* 餐馆原因 */
.card-reason { font-size: .75rem; color: var(--text-3); margin-top: 6px; font-style: italic; }

/* ===========================
   💰 预算图表
=========================== */
.budget-wrap { display: grid; grid-template-columns: 300px 1fr; gap: 32px; align-items: center; margin-top: 16px; }
.budget-chart-box { max-width: 300px; }
.budget-list { display: flex; flex-direction: column; gap: 12px; }
.budget-row {
  display: grid;
  grid-template-columns: 120px 1fr 80px;
  align-items: center;
  gap: 12px;
}
.budget-label { font-size: .85rem; font-weight: 600; color: var(--text-2); display: flex; align-items: center; gap: 6px; }
.budget-bar-wrap { background: var(--bg); border-radius: 10px; overflow: hidden; height: 8px; }
.budget-bar { height: 100%; border-radius: 10px; transition: width .6s ease; }
.budget-amount { font-size: .88rem; font-weight: 700; color: var(--text); text-align: right; }
.budget-total {
  margin-top: 16px;
  padding: 16px;
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  border-radius: var(--radius);
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.budget-total-label { font-size: .9rem; opacity: .8; }
.budget-total-amount { font-size: 1.3rem; font-weight: 900; }

/* ===========================
   🚄 交通
=========================== */
.transport-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }
.transport-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}
.transport-card h3 { font-size: .95rem; font-weight: 700; margin-bottom: 10px; color: var(--text); }
.transport-card p { font-size: .85rem; color: var(--text-2); line-height: 1.8; }
.transport-tips { list-style: none; display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.transport-tips li { font-size: .82rem; color: var(--text-2); padding: 8px 12px; background: var(--bg); border-radius: 8px; }
.transport-tips li::before { content: '✓ '; color: var(--green); font-weight: 700; }

/* ===========================
   🛍️ 购物
=========================== */
.shop-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; margin-top: 16px; }
.shop-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  border-top: 3px solid var(--amber);
}
.shop-name { font-size: .95rem; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.shop-type { font-size: .72rem; color: var(--amber-dark); font-weight: 600; background: #fff7ed; padding: 2px 8px; border-radius: 10px; display: inline-block; margin-bottom: 8px; }
.shop-specialty { font-size: .82rem; color: var(--text-2); line-height: 1.6; }
.shop-price { font-size: .78rem; color: var(--text-3); margin-top: 6px; }
.shop-tips { font-size: .75rem; color: var(--green); margin-top: 6px; font-style: italic; }

/* ===========================
   🎬 视频
=========================== */
.video-section { background: linear-gradient(135deg, #0f172a, #1e293b); }
.video-section .sec-title { color: #fff; }
.video-section .sec-sub { color: rgba(255,255,255,.5); }
.video-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; margin-top: 16px; }
.video-card {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: background .2s;
}
.video-card:hover { background: rgba(255,255,255,.12); }
.video-thumb {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  background: rgba(255,255,255,.05);
  position: relative;
}
.video-play-btn {
  position: absolute;
  width: 56px; height: 56px;
  background: rgba(255,255,255,.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}
.video-info { padding: 14px; color: #fff; }
.video-title { font-size: .88rem; font-weight: 600; margin-bottom: 6px; }
.video-platform { font-size: .72rem; opacity: .5; }
.video-btn {
  display: block;
  margin: 4px 14px 14px;
  padding: 8px 16px;
  background: rgba(255,182,0,.15);
  border: 1px solid rgba(255,182,0,.3);
  border-radius: 8px;
  color: var(--amber);
  font-size: .8rem;
  font-weight: 600;
  text-align: center;
  transition: background .15s;
}
.video-btn:hover { background: var(--amber); color: #000; }

/* ===========================
   💡 贴士
=========================== */
.tips-section { background: linear-gradient(135deg, #f0fdf4, #ecfdf5); }
.tips-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; margin-top: 16px; }
.tips-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}
.tips-card-title { font-size: .9rem; font-weight: 700; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.tips-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.tips-list li { font-size: .83rem; color: var(--text-2); padding: 6px 10px; background: #f8fafb; border-radius: 8px; line-height: 1.5; }

/* ===========================
   底部
=========================== */
.r-footer {
  text-align: center;
  padding: 32px 20px;
  background: var(--text);
  color: rgba(255,255,255,.6);
  font-size: .85rem;
}
.r-footer strong { color: #fff; }
.btn-replan {
  display: inline-block;
  margin-top: 16px;
  padding: 12px 32px;
  background: var(--blue);
  color: #fff;
  border-radius: 30px;
  font-size: .9rem;
  font-weight: 700;
  transition: background .15s;
}
.btn-replan:hover { background: var(--blue-dark); }

/* ===========================
   打印样式
=========================== */
@media print {
  .result-nav, .btn-replan, .nav-back, .nav-print { display: none !important; }
  .r-section { break-inside: avoid; }
  #travel-map { height: 300px; }
}

/* ===========================
   响应式
=========================== */
@media (max-width: 768px) {
  .field-row { grid-template-columns: 1fr; }
  .r-hero-content { padding: 20px; }
  .r-hero-content h1 { font-size: 1.4rem; }
  .r-stats { gap: 16px; }
  .r-section-inner { padding: 20px 16px; }
  .budget-wrap { grid-template-columns: 1fr; }
  .budget-chart-box { max-width: 220px; margin: 0 auto; }
  .transport-cards { grid-template-columns: 1fr; }
  .day-meals { grid-template-columns: 1fr; }
  .form-card { padding: 20px; }
  .brand-text h1 { font-size: 1.5rem; }
  .r-hero { height: 280px; }
}

@media (max-width: 480px) {
  .brand { flex-direction: column; gap: 8px; text-align: center; }
  .cards-grid { grid-template-columns: 1fr; }
  .video-cards { grid-template-columns: 1fr; }
  .shop-grid { grid-template-columns: 1fr; }
}