/* ========== 甜美可爱主题 ========== */
:root {
  --bg: #fff5f7;
  --bg-2: #ffeef3;
  --pink: #ff8fab;
  --pink-deep: #f4638a;
  --pink-soft: #ffd6e0;
  --peach: #ffc2a8;
  --text: #6b4550;
  --text-light: #a97f8c;
  --white: #ffffff;
  --shadow: 0 8px 24px rgba(244, 99, 138, 0.14);
  --radius: 22px;
}

* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body { height: 100%; }

body {
  font-family: "Yuanti SC", "YouYuan", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: linear-gradient(160deg, var(--bg) 0%, var(--bg-2) 55%, #ffe9ef 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ---------- 漂浮爱心背景 ---------- */
.floating-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}
.floating-bg span {
  position: absolute;
  bottom: -12vh;
  animation: floatUp linear infinite;
  opacity: 0;
  filter: saturate(1.1);
}
@keyframes floatUp {
  0%   { transform: translateY(0) rotate(0deg) scale(1); opacity: 0; }
  10%  { opacity: 0.75; }
  90%  { opacity: 0.5; }
  100% { transform: translateY(-115vh) rotate(40deg) scale(1.15); opacity: 0; }
}

/* ---------- 布局 ---------- */
.page {
  position: relative;
  z-index: 1;
  max-width: 480px;
  margin: 0 auto;
  padding: 28px 18px 40px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---------- 分步屏幕 ---------- */
.screen { display: none; }
.screen.active {
  display: block;
  animation: slideIn .4s ease;
}
@keyframes slideIn {
  from { transform: translateX(28px); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

/* ---------- 欢迎页 ---------- */
.welcome {
  text-align: center;
  padding: 12vh 8px 0;
}
.welcome-emoji {
  font-size: 72px;
  animation: bob 2.4s ease-in-out infinite;
}
@keyframes bob {
  0%, 100% { transform: translateY(0) rotate(-4deg); }
  50% { transform: translateY(-10px) rotate(4deg); }
}
.hero-badge {
  display: inline-block;
  background: var(--white);
  color: var(--pink-deep);
  font-size: 12px;
  padding: 6px 14px;
  border-radius: 999px;
  box-shadow: var(--shadow);
  margin: 18px 0 16px;
  letter-spacing: 1px;
}
.hero-title {
  font-size: 52px;
  letter-spacing: 6px;
  color: var(--pink-deep);
  text-shadow: 0 3px 0 #fff;
}
.hero-tagline {
  font-size: 20px;
  letter-spacing: 10px;
  color: var(--text);
  margin-top: 6px;
  text-indent: 10px;
}
.hero-sub { color: var(--text-light); font-size: 14px; margin-top: 14px; }
.welcome .primary-btn { margin-top: 34px; }

/* ---------- 通用大按钮 ---------- */
.primary-btn {
  width: 100%;
  border: none;
  border-radius: 999px;
  padding: 16px;
  font-size: 18px;
  font-weight: bold;
  font-family: inherit;
  color: #fff;
  background: linear-gradient(135deg, var(--pink), var(--pink-deep));
  box-shadow: 0 10px 22px rgba(244, 99, 138, 0.4);
  cursor: pointer;
  transition: all .2s;
}
.primary-btn:disabled {
  background: #e8ccd4;
  box-shadow: none;
  cursor: not-allowed;
}
.primary-btn:not(:disabled):active { transform: scale(0.97); }

.back-btn {
  display: block;
  margin: 14px auto 0;
  border: none;
  background: none;
  color: var(--text-light);
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  padding: 6px 12px;
}
.back-btn:active { color: var(--pink-deep); }

/* ---------- 步骤条 ---------- */
.steps-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-bottom: 20px;
}
.step-dot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.step-dot span {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--white);
  color: var(--text-light);
  display: grid;
  place-items: center;
  font-size: 14px;
  font-weight: bold;
  box-shadow: var(--shadow);
  transition: all .3s;
}
.step-dot em { font-style: normal; font-size: 11px; color: var(--text-light); }
.step-dot.active span {
  background: linear-gradient(135deg, var(--pink), var(--pink-deep));
  color: #fff;
  transform: scale(1.12);
}
.step-dot.active em { color: var(--pink-deep); font-weight: bold; }
.step-line {
  width: 34px; height: 3px;
  border-radius: 2px;
  background: var(--pink-soft);
  margin-bottom: 18px;
}

/* ---------- 卡片 ---------- */
.card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 16px;
  margin-bottom: 16px;
}
.card-title { font-size: 17px; margin-bottom: 14px; color: var(--text); }

/* ---------- 日期网格 ---------- */
.date-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.date-pill {
  padding: 10px 0 12px;
  border: 2px solid var(--pink-soft);
  border-radius: 18px;
  background: #fff;
  text-align: center;
  cursor: pointer;
  transition: all .2s;
  position: relative;
  font-family: inherit;
  color: var(--text);
}
.date-pill .dp-week { font-size: 12px; color: var(--text-light); }
.date-pill .dp-day  { font-size: 20px; font-weight: bold; margin-top: 2px; }
.date-pill .dp-tag {
  position: absolute;
  top: -9px; left: 50%;
  transform: translateX(-50%);
  font-size: 10px;
  background: var(--peach);
  color: #fff;
  padding: 2px 8px;
  border-radius: 999px;
  white-space: nowrap;
}
.date-pill.selected {
  background: linear-gradient(135deg, var(--pink), var(--pink-deep));
  border-color: var(--pink-deep);
  transform: translateY(-3px);
  box-shadow: 0 6px 14px rgba(244, 99, 138, 0.35);
}
.date-pill.selected .dp-week,
.date-pill.selected .dp-day { color: #fff; }

/* ---------- 时间格子 ---------- */
.time-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
.time-btn {
  border: 2px solid var(--pink-soft);
  background: #fff;
  border-radius: 16px;
  padding: 12px 6px;
  cursor: pointer;
  transition: all .2s;
  font-family: inherit;
  color: var(--text);
}
.time-btn .tb-time { font-size: 17px; font-weight: bold; }
.time-btn .tb-label { font-size: 12px; color: var(--text-light); margin-top: 2px; }
.time-btn.selected {
  background: linear-gradient(135deg, var(--pink), var(--pink-deep));
  border-color: var(--pink-deep);
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(244, 99, 138, 0.35);
}
.time-btn.selected .tb-time, .time-btn.selected .tb-label { color: #fff; }

/* ---------- 项目按钮 ---------- */
.activity-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.activity-btn {
  border: 2px solid var(--pink-soft);
  background: #fff;
  border-radius: 18px;
  padding: 14px 4px;
  text-align: center;
  cursor: pointer;
  transition: all .2s;
  font-family: inherit;
  color: var(--text);
}
.activity-btn .ab-emoji { font-size: 28px; display: block; }
.activity-btn .ab-name { font-size: 15px; font-weight: bold; margin-top: 6px; display: block; }
.activity-btn.selected {
  background: linear-gradient(135deg, var(--pink), var(--pink-deep));
  border-color: var(--pink-deep);
  transform: translateY(-3px);
  box-shadow: 0 6px 14px rgba(244, 99, 138, 0.35);
}
.activity-btn.selected .ab-name { color: #fff; }

/* 细分选项 */
.sub-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, margin-top .35s ease;
}
.sub-options.open { max-height: 220px; margin-top: 14px; }
.sub-btn {
  border: 2px solid var(--pink-soft);
  background: var(--bg);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 14px;
  cursor: pointer;
  transition: all .2s;
  font-family: inherit;
  color: var(--text);
}
.sub-btn.selected {
  background: linear-gradient(135deg, var(--pink), var(--pink-deep));
  border-color: var(--pink-deep);
  color: #fff;
  box-shadow: 0 4px 10px rgba(244, 99, 138, 0.3);
}

/* ---------- 摘要 ---------- */
.summary {
  min-height: 22px;
  font-size: 13px;
  color: var(--text-light);
  text-align: center;
  margin-bottom: 10px;
}
.summary b { color: var(--pink-deep); }

/* ---------- 约满页 ---------- */
.result {
  text-align: center;
  padding: 10vh 8px 0;
}
.result-emoji {
  font-size: 72px;
  animation: shake .6s ease;
}
@keyframes shake {
  0%, 100% { transform: rotate(0); }
  25% { transform: rotate(-8deg); }
  75% { transform: rotate(8deg); }
}
.result-title { font-size: 26px; color: var(--pink-deep); margin: 14px 0 10px; }
.result-text { font-size: 16px; line-height: 1.8; }
.result-detail {
  display: inline-block;
  background: var(--white);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 12px 20px;
  font-size: 13px;
  color: var(--text-light);
  margin-top: 18px;
  line-height: 1.9;
}
.result-detail b { color: var(--pink-deep); }
.result .primary-btn { margin-top: 26px; }

.foot {
  text-align: center;
  margin-top: auto;
  padding-top: 26px;
  font-size: 12px;
  color: #cfa3b0;
}

/* ---------- 加载弹层 ---------- */
.overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(107, 69, 80, 0.35);
  backdrop-filter: blur(4px);
  display: grid;
  place-items: center;
  padding: 24px;
}
.overlay.hidden { display: none; }

.loading-box {
  background: var(--white);
  border-radius: var(--radius);
  padding: 30px 40px;
  text-align: center;
  box-shadow: var(--shadow);
}
.loading-heart {
  font-size: 44px;
  animation: beat .7s ease-in-out infinite;
}
@keyframes beat {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.25); }
}
.loading-box p { margin-top: 12px; color: var(--text-light); font-size: 14px; }

/* 小屏微调 */
@media (max-width: 360px) {
  .hero-title { font-size: 42px; }
  .step-line { width: 22px; }
}