/* ============================================================
   百花茶官网 · 可爱二次元风格
   ============================================================ */

:root {
  --red: #eb1d1d;
  --red-light: #ff4444;
  --red-deep: #c41414;
  --red-grad: linear-gradient(135deg, #eb1d1d 0%, #ff4444 100%);

  --pink-50: #fff6f6;
  --pink-100: #ffecec;
  --pink-200: #ffd9d9;
  --pink-300: #ffbfc5;

  --cream: #fff8f0;
  --cream-deep: #fff1e4;

  --ink: #4a2c2e;
  --ink-soft: #8a6266;
  --ink-faint: #b59a9c;

  --card: #ffffff;
  --line: #ffdada;

  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;

  --shadow-soft: 0 10px 30px rgba(235, 29, 29, .08);
  --shadow-pop: 0 14px 34px rgba(235, 29, 29, .16);
  --shadow-inset: inset 0 -4px 0 rgba(0, 0, 0, .06);

  --font-cute: 'ZCOOL KuaiLe', 'Noto Sans SC', sans-serif;
  --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--pink-50);
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }

.container { width: min(1160px, 92%); margin: 0 auto; }

::selection { background: var(--pink-300); color: var(--red-deep); }

/* ---------- 滚动条 ---------- */
::-webkit-scrollbar { width: 12px; }
::-webkit-scrollbar-track { background: var(--pink-100); }
::-webkit-scrollbar-thumb { background: linear-gradient(#ff9aa5, #eb1d1d); border-radius: 8px; border: 3px solid var(--pink-100); }

/* ============================================================
   樱花飘落
   ============================================================ */
#petals { position: fixed; inset: 0; pointer-events: none; z-index: 9999; overflow: hidden; }

.petal {
  position: absolute;
  top: -6vh;
  width: 16px; height: 16px;
  background: linear-gradient(135deg, #ffd1dc, #ff9aae);
  border-radius: 16px 0 16px 0;
  opacity: .8;
  animation: petalFall linear infinite;
}

@keyframes petalFall {
  0%   { transform: translateY(-6vh) translateX(0) rotate(0deg); }
  25%  { transform: translateY(25vh) translateX(6vw) rotate(120deg); }
  50%  { transform: translateY(50vh) translateX(-4vw) rotate(240deg); }
  75%  { transform: translateY(75vh) translateX(5vw) rotate(300deg); }
  100% { transform: translateY(108vh) translateX(-2vw) rotate(400deg); }
}

/* ============================================================
   通用按钮
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: none;
  cursor: pointer;
  font-family: var(--font-cute);
  font-size: 17px;
  letter-spacing: .04em;
  text-decoration: none;
  border-radius: 999px;
  transition: transform .25s cubic-bezier(.34, 1.56, .64, 1), box-shadow .25s, filter .25s;
  position: relative;
  user-select: none;
}

.btn:active { transform: scale(.96); }

.btn-icon { width: 1.2em; height: 1.2em; flex: none; }
.btn-icon-xl { width: 34px; height: 34px; }

.btn-primary {
  background: var(--red-grad);
  color: #fff;
  padding: 12px 26px;
  box-shadow: 0 8px 22px rgba(235, 29, 29, .32), var(--shadow-inset);
}
.btn-primary:hover {
  transform: translateY(-3px) scale(1.03) rotate(-1deg);
  box-shadow: 0 14px 32px rgba(235, 29, 29, .4), var(--shadow-inset);
  filter: brightness(1.05);
}

.btn-ghost {
  background: #fff;
  color: var(--red);
  padding: 12px 24px;
  border: 2.5px dashed var(--pink-300);
  box-shadow: var(--shadow-soft);
}
.btn-ghost:hover {
  transform: translateY(-3px);
  border-color: var(--red-light);
  border-style: solid;
}

/* 下载按钮(带双行文字) */
.btn-download { padding: 10px 26px 10px 16px; }
.btn-download-inner { display: flex; align-items: center; gap: 12px; }
.btn-download-texts { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.25; }
.btn-download-main { font-size: 18px; }
.btn-download-sub { font-size: 11.5px; font-family: var(--font-body); font-weight: 500; opacity: .85; letter-spacing: .02em; }

.btn-download-xl { padding: 16px 36px 16px 20px; }
.btn-download-xl .btn-download-main { font-size: 22px; }
.btn-download-xl .btn-download-sub { font-size: 12.5px; }

/* ============================================================
   导航栏
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 14px 0;
  transition: background .3s, box-shadow .3s, padding .3s;
}
.nav.scrolled {
  background: rgba(255, 250, 247, .92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 4px 24px rgba(235, 29, 29, .08);
  padding: 10px 0;
}

.nav-inner { display: flex; align-items: center; gap: 28px; }

.nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.nav-logo-img {
  width: 44px; height: 44px;
  border-radius: 14px;
  box-shadow: 0 4px 12px rgba(235, 29, 29, .25);
  border: 2px solid #fff;
}
.nav-logo-text {
  font-family: var(--font-cute);
  font-size: 24px;
  color: var(--red);
  text-shadow: 0 2px 0 rgba(235, 29, 29, .12);
}
.nav-logo-badge {
  font-size: 10px;
  font-weight: 700;
  color: #fff;
  background: var(--red-grad);
  border-radius: 8px;
  padding: 2px 7px;
  transform: rotate(6deg) translateY(-6px);
  box-shadow: 0 3px 8px rgba(235, 29, 29, .3);
}

.nav-links { display: flex; gap: 6px; margin-left: auto; }
.nav-link {
  font-family: var(--font-cute);
  font-size: 16px;
  color: var(--ink-soft);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 999px;
  transition: all .25s;
  position: relative;
}
.nav-link:hover { color: var(--red); background: var(--pink-100); transform: translateY(-1px); }

.nav-cta { padding: 10px 20px; font-size: 15px; }

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-left: auto;
}
.nav-burger span {
  width: 24px; height: 3px;
  background: var(--red);
  border-radius: 3px;
  transition: all .3s;
}
.nav-burger.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-burger.open span:nth-child(2) { opacity: 0; }
.nav-burger.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ============================================================
   英雄区
   ============================================================ */
.hero {
  position: relative;
  padding: 150px 0 40px;
  background:
    radial-gradient(ellipse 60% 50% at 85% 20%, rgba(255, 190, 200, .35), transparent),
    radial-gradient(ellipse 50% 40% at 10% 60%, rgba(255, 218, 190, .3), transparent),
    linear-gradient(180deg, #fff6f3 0%, var(--pink-50) 60%, var(--pink-100) 100%);
  overflow: hidden;
}

.hero-deco { position: absolute; pointer-events: none; }
.hero-deco-blob-1 {
  width: 380px; height: 380px;
  top: -80px; right: -100px;
  background: radial-gradient(circle at 30% 30%, #ffd4d4, #ffeded 60%, transparent);
  border-radius: 50%;
  filter: blur(2px);
  animation: floatSlow 9s ease-in-out infinite;
}
.hero-deco-blob-2 {
  width: 260px; height: 260px;
  bottom: 60px; left: -80px;
  background: radial-gradient(circle at 60% 40%, #ffe3c9, #fff3e6 60%, transparent);
  border-radius: 50%;
  animation: floatSlow 11s ease-in-out infinite reverse;
}
.hero-deco-ring {
  width: 90px; height: 90px;
  border: 10px solid rgba(255, 158, 170, .25);
  border-radius: 50%;
  top: 200px; left: 8%;
  animation: spinSlow 14s linear infinite;
}

@keyframes floatSlow {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-24px) scale(1.04); }
}
@keyframes spinSlow { to { transform: rotate(360deg); } }

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 40px;
  align-items: center;
  position: relative;
  z-index: 1;
}

/* 左侧文案 */
.hero-emoji-row { display: flex; gap: 10px; margin-bottom: 22px; flex-wrap: wrap; }

.hero-chip {
  font-family: var(--font-cute);
  font-size: 14.5px;
  color: var(--red);
  background: #fff;
  border: 2px solid var(--pink-200);
  padding: 6px 16px;
  border-radius: 999px;
  box-shadow: var(--shadow-soft);
  animation: chipBob 3s ease-in-out infinite;
}
.hero-chip-alt { animation-delay: 1.2s; color: #d4762c; border-color: #ffe0c2; }

@keyframes chipBob {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50% { transform: translateY(-6px) rotate(2deg); }
}

.hero-title {
  font-family: var(--font-cute);
  font-size: clamp(52px, 7vw, 84px);
  line-height: 1.08;
  color: var(--ink);
  margin-bottom: 20px;
  letter-spacing: .02em;
}
.hero-title-dot { color: var(--red-light); margin: 0 8px; }
.hero-title-sub {
  display: inline-block;
  background: var(--red-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  transform: rotate(-1.5deg);
}

.hero-desc {
  font-size: 17.5px;
  color: var(--ink-soft);
  max-width: 520px;
  margin-bottom: 34px;
}

.hero-actions { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; margin-bottom: 36px; }

.hero-meta {
  display: inline-flex;
  align-items: center;
  gap: 22px;
  background: rgba(255, 255, 255, .75);
  backdrop-filter: blur(8px);
  border: 2px solid #fff;
  border-radius: var(--radius-md);
  padding: 16px 26px;
  box-shadow: var(--shadow-soft);
}
.hero-meta-item { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.hero-meta-num { font-family: var(--font-cute); font-size: 20px; color: var(--red); }
.hero-meta-label { font-size: 12px; color: var(--ink-faint); letter-spacing: .08em; }
.hero-meta-divider { width: 2px; height: 34px; background: var(--pink-200); border-radius: 2px; }

/* 右侧视觉 */
.hero-visual { position: relative; display: flex; justify-content: center; align-items: flex-end; min-height: 560px; }

.hero-mascot {
  position: absolute;
  right: 4%;
  bottom: 0;
  width: min(400px, 88%);
  border-radius: 30px;
  box-shadow: 0 24px 60px rgba(235, 29, 29, .18);
  border: 5px solid #fff;
  transform: rotate(2.5deg);
  z-index: 2;
  animation: mascotFloat 6s ease-in-out infinite;
}
@keyframes mascotFloat {
  0%, 100% { transform: rotate(2.5deg) translateY(0); }
  50% { transform: rotate(2.5deg) translateY(-12px); }
}

.hero-bubble {
  position: absolute;
  font-family: var(--font-cute);
  font-size: 15px;
  color: var(--red-deep);
  background: #fff;
  border: 2.5px solid var(--pink-200);
  border-radius: 18px 18px 18px 4px;
  padding: 9px 16px;
  box-shadow: var(--shadow-soft);
  z-index: 3;
  animation: bubblePop 4s ease-in-out infinite;
}
.hero-bubble-1 { top: 24px; left: 2%; }
.hero-bubble-2 { top: 120px; right: 42%; animation-delay: 1.5s; background: var(--cream); border-color: #ffe0c2; border-radius: 18px 18px 4px 18px; }
.hero-bubble-download { position: absolute; top: -14px; right: 10px; }

@keyframes bubblePop {
  0%, 100% { transform: scale(1) translateY(0); }
  50% { transform: scale(1.07) translateY(-6px); }
}

/* ============================================================
   手机模型
   ============================================================ */
.phone {
  width: 270px;
  height: 560px;
  background: linear-gradient(160deg, #3d2325, #2a1719);
  border-radius: 42px;
  padding: 10px;
  box-shadow: 0 30px 70px rgba(74, 44, 46, .35), inset 0 1px 3px rgba(255, 255, 255, .2);
  position: relative;
  flex: none;
}

.phone-notch {
  position: absolute;
  top: 10px; left: 50%;
  transform: translateX(-50%);
  width: 108px; height: 26px;
  background: #2a1719;
  border-radius: 0 0 16px 16px;
  z-index: 5;
}

.phone-screen {
  width: 100%; height: 100%;
  background: #f7f4f2;
  border-radius: 33px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
}

.phone-hero {
  position: relative;
  z-index: 1;
  transform: rotate(-3deg) translateY(16px);
  animation: phoneFloat 7s ease-in-out infinite;
}
@keyframes phoneFloat {
  0%, 100% { transform: rotate(-3deg) translateY(16px); }
  50% { transform: rotate(-3deg) translateY(0px); }
}

/* App 头部 */
.app-header {
  background: var(--red-grad);
  padding: 38px 14px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}
.app-header-title { font-family: var(--font-cute); color: #fff; font-size: 19px; letter-spacing: .05em; }
.app-header-search {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, .22);
  color: #fff;
  font-size: 11px;
  border-radius: 999px;
  padding: 6px 12px;
}
.app-header-search svg { width: 12px; height: 12px; flex: none; }

.app-header-chat { padding-top: 40px; }
.app-header-back { color: #fff; font-size: 22px; line-height: 1; }
.app-header-title-sm { font-family: var(--font-cute); color: #fff; font-size: 15px; margin: 0 auto 0 4px; }
.app-header-online { color: #7cff9b; font-size: 10px; }

/* 标签行 */
.app-tabs {
  display: flex;
  gap: 4px;
  padding: 10px 14px;
  background: #fff;
  border-bottom: 1px solid #f3e9e9;
  flex: none;
}
.app-tab {
  font-size: 12px;
  color: var(--ink-soft);
  padding: 5px 12px;
  border-radius: 999px;
  background: #f7f2f0;
}
.app-tab-active { background: var(--red-grad); color: #fff; font-weight: 700; }

/* 信息流 */
.app-feed { flex: 1; overflow: hidden; padding: 10px; background: #f7f4f2; }

.app-card {
  background: #fff;
  border-radius: 14px;
  padding: 12px;
  margin-bottom: 10px;
  box-shadow: 0 2px 8px rgba(74, 44, 46, .06);
}
.app-card-head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.app-card-user { display: flex; flex-direction: column; line-height: 1.3; flex: 1; }
.app-card-name { font-size: 12.5px; font-weight: 700; color: var(--ink); }
.app-card-time { font-size: 10px; color: var(--ink-faint); }
.app-card-tag {
  font-size: 10px;
  color: var(--red);
  background: var(--pink-100);
  border: 1px solid var(--pink-200);
  padding: 2px 8px;
  border-radius: 999px;
}

.app-avatar {
  width: 30px; height: 30px;
  border-radius: 50%;
  flex: none;
  border: 2px solid #fff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, .12);
}
.app-avatar-1 { background: linear-gradient(135deg, #ffb6c1, #ff7b9c); }
.app-avatar-2 { background: linear-gradient(135deg, #a8e6cf, #56c596); }
.app-avatar-3 { background: linear-gradient(135deg, #c3b1ff, #9a7bff); }
.app-avatar-xl { width: 62px; height: 62px; border-width: 3px; }

.app-card-text { font-size: 12px; color: var(--ink); margin-bottom: 8px; }

.app-card-imgs { display: flex; gap: 6px; margin-bottom: 8px; }
.app-card-img {
  height: 64px;
  border-radius: 8px;
  background: linear-gradient(135deg, #ffd9e0, #ffb3c0);
}
.app-img-1 { flex: 1; background: linear-gradient(135deg, #ffd9e0, #ffb3c0); }
.app-img-2 { flex: 1; background: linear-gradient(135deg, #d4e7ff, #a8ccff); }
.app-img-3 { flex: 1; background: linear-gradient(135deg, #e4dcff, #c0aaff); }
.app-img-4 { height: 120px; flex: none; width: 100%; background: linear-gradient(135deg, #ffe6c9, #ffc3a1); }

.app-card-foot { display: flex; gap: 14px; }
.app-stat { font-size: 10.5px; color: var(--ink-soft); }

/* 底部 TabBar */
.app-tabbar {
  display: flex;
  align-items: center;
  justify-content: space-around;
  background: #fff;
  border-top: 1px solid #f3e9e9;
  padding: 8px 4px 10px;
  flex: none;
}
.app-tabbar-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  font-size: 9.5px;
  color: var(--ink-faint);
}
.app-tabbar-item svg { width: 19px; height: 19px; }
.app-tabbar-active { color: var(--red); font-weight: 700; }
.app-tabbar-add {
  width: 42px; height: 42px;
  margin-top: -22px;
  background: var(--red-grad);
  color: #fff;
  font-size: 24px;
  border-radius: 16px;
  justify-content: center;
  box-shadow: 0 8px 18px rgba(235, 29, 29, .35);
  border: 3px solid #fff;
}

/* 聊天界面 */
.chat-feed { flex: 1; overflow: hidden; padding: 12px 10px; background: #f7f4f2; display: flex; flex-direction: column; gap: 12px; }

.chat-bubble-row { display: flex; align-items: flex-end; gap: 8px; }
.chat-bubble-row .app-avatar { width: 28px; height: 28px; }
.chat-mine { justify-content: flex-end; }

.chat-bubble {
  max-width: 70%;
  background: #fff;
  border-radius: 16px 16px 16px 4px;
  padding: 9px 13px;
  font-size: 12px;
  color: var(--ink);
  box-shadow: 0 2px 6px rgba(0, 0, 0, .05);
}
.chat-bubble-mine { background: var(--red-grad); color: #fff; border-radius: 16px 16px 4px 16px; }

.chat-emoji {
  width: 88px; height: 88px;
  border-radius: 12px;
  background: var(--pink-100);
  object-fit: cover;
}

.chat-input-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border-top: 1px solid #f3e9e9;
  padding: 10px 10px;
  flex: none;
}
.chat-input-face { font-size: 18px; }
.chat-input-field {
  flex: 1;
  font-size: 11px;
  color: var(--ink-faint);
  background: #f7f2f0;
  border-radius: 999px;
  padding: 8px 14px;
}
.chat-input-send {
  font-size: 11px;
  color: #fff;
  background: var(--red-grad);
  padding: 7px 13px;
  border-radius: 999px;
}

/* 个人中心界面 */
.profile-banner {
  background: linear-gradient(150deg, #ffb3bd, #ff8a95 55%, var(--red-light));
  padding: 46px 16px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  position: relative;
  flex: none;
}
.profile-lv-badge {
  position: absolute;
  top: 44px; right: 14px;
  background: rgba(255, 255, 255, .92);
  color: var(--red);
  font-size: 10.5px;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 999px;
  box-shadow: 0 3px 8px rgba(0, 0, 0, .15);
}
.profile-name { font-family: var(--font-cute); color: #fff; font-size: 17px; text-shadow: 0 2px 6px rgba(0, 0, 0, .18); }
.profile-bio { font-size: 10.5px; color: rgba(255, 255, 255, .92); }

.profile-stats {
  display: flex;
  background: #fff;
  padding: 12px 0;
  flex: none;
  border-bottom: 1px solid #f3e9e9;
}
.profile-stat { flex: 1; display: flex; flex-direction: column; align-items: center; line-height: 1.3; }
.profile-stat b { font-family: var(--font-cute); font-size: 15px; color: var(--ink); }
.profile-stat i { font-style: normal; font-size: 10px; color: var(--ink-faint); }

.profile-menu { flex: 1; overflow: hidden; background: #f7f4f2; padding: 8px 10px; display: flex; flex-direction: column; gap: 7px; }
.profile-menu-item {
  background: #fff;
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 12px;
  color: var(--ink);
  box-shadow: 0 1px 4px rgba(0, 0, 0, .04);
}

/* 英雄区波浪 */
.hero-wave { position: absolute; bottom: -1px; left: 0; right: 0; color: var(--pink-50); line-height: 0; }
.hero-wave svg { width: 100%; height: 80px; display: block; }

/* ============================================================
   区块通用
   ============================================================ */
.section { padding: 90px 0; position: relative; }

.section-head { text-align: center; margin-bottom: 56px; }
.section-tag {
  display: inline-block;
  font-family: var(--font-cute);
  font-size: 15px;
  color: var(--red);
  background: #fff;
  border: 2px dashed var(--pink-300);
  padding: 7px 20px;
  border-radius: 999px;
  margin-bottom: 18px;
  transform: rotate(-1.5deg);
  box-shadow: var(--shadow-soft);
}
.section-title { font-family: var(--font-cute); font-size: clamp(34px, 4.5vw, 46px); color: var(--ink); margin-bottom: 12px; }
.section-desc { font-size: 16.5px; color: var(--ink-soft); }

/* ============================================================
   特色功能
   ============================================================ */
.features { background: var(--pink-50); }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.feature-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 34px 28px 30px;
  border: 2.5px solid transparent;
  box-shadow: var(--shadow-soft);
  transition: transform .35s cubic-bezier(.34, 1.56, .64, 1), box-shadow .35s, border-color .35s;
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(30px);
}
.feature-card::after {
  content: '';
  position: absolute;
  top: -50%; right: -30%;
  width: 60%; height: 200%;
  background: radial-gradient(circle, rgba(255, 200, 210, .35), transparent 65%);
  pointer-events: none;
}
.feature-card.revealed { opacity: 1; transform: translateY(0); transition-delay: var(--delay, 0ms); }
.feature-card:hover {
  transform: translateY(-10px) rotate(-.6deg);
  box-shadow: var(--shadow-pop);
  border-color: var(--pink-200);
}

.feature-icon {
  width: 66px; height: 66px;
  border-radius: 22px;
  display: grid;
  place-items: center;
  font-size: 30px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-soft);
  transition: transform .35s cubic-bezier(.34, 1.56, .64, 1);
}
.feature-card:hover .feature-icon { transform: scale(1.12) rotate(8deg); }

.feature-icon-pink { background: linear-gradient(135deg, #ffe3ea, #ffc9d6); }
.feature-icon-red { background: linear-gradient(135deg, #ffd9d9, #ffb0b0); }
.feature-icon-orange { background: linear-gradient(135deg, #ffeed9, #ffd3a8); }
.feature-icon-purple { background: linear-gradient(135deg, #efe5ff, #d7c3ff); }
.feature-icon-green { background: linear-gradient(135deg, #e1f5e9, #b8e6cb); }
.feature-icon-blue { background: linear-gradient(135deg, #e0edff, #bcd5ff); }

.feature-title { font-family: var(--font-cute); font-size: 21px; color: var(--ink); margin-bottom: 10px; }
.feature-desc { font-size: 14.5px; color: var(--ink-soft); }

/* ============================================================
   应用截图
   ============================================================ */
.screens {
  background:
    radial-gradient(ellipse 55% 45% at 50% 0%, rgba(255, 210, 215, .28), transparent),
    var(--pink-100);
  overflow: hidden;
}

.screens-row {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 44px;
  perspective: 1200px;
}

.phone-screen-shot { cursor: default; }
.phone-screen-shot .phone-screen { background: #f7f4f2; }

.phone-tilt-left { transform: rotate(-5deg) translateY(26px); }
.phone-tilt-right { transform: rotate(5deg) translateY(26px); }

.phone-screen-shot { transition: transform .45s cubic-bezier(.34, 1.56, .64, 1); }
.phone-screen-shot:hover { transform: rotate(0deg) translateY(6px) scale(1.04); z-index: 5; }
.phone-tilt-left:hover { transform: rotate(-2deg) translateY(6px) scale(1.04); }
.phone-tilt-right:hover { transform: rotate(2deg) translateY(6px) scale(1.04); }

.screen-label {
  position: absolute;
  bottom: -44px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-cute);
  font-size: 16px;
  color: var(--red);
  background: #fff;
  border: 2px solid var(--pink-200);
  padding: 7px 22px;
  border-radius: 999px;
  box-shadow: var(--shadow-soft);
  white-space: nowrap;
}

/* ============================================================
   下载区
   ============================================================ */
.download { background: var(--pink-100); }

.download-card {
  position: relative;
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 30px;
  align-items: center;
  background:
    radial-gradient(ellipse 70% 90% at 100% 0%, rgba(255, 120, 130, .16), transparent),
    linear-gradient(140deg, #fff8f5, #fff);
  border-radius: 36px;
  padding: 60px 64px;
  border: 3px solid #fff;
  box-shadow: 0 30px 70px rgba(235, 29, 29, .13);
  overflow: hidden;
}

.download-deco-blob {
  position: absolute;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 175, 190, .4), transparent 65%);
  top: -90px; right: -70px;
  pointer-events: none;
  animation: floatSlow 8s ease-in-out infinite;
}

.download-visual { position: relative; display: flex; justify-content: center; }

.download-mascot {
  width: min(360px, 100%);
  border-radius: 28px;
  border: 5px solid #fff;
  box-shadow: 0 22px 50px rgba(235, 29, 29, .18);
  transform: rotate(-2deg);
  animation: mascotFloat 6s ease-in-out infinite;
}

.download-copy { position: relative; z-index: 1; }

.download-title {
  font-family: var(--font-cute);
  font-size: clamp(32px, 4vw, 44px);
  color: var(--ink);
  line-height: 1.25;
  margin: 14px 0 16px;
}

.download-desc { font-size: 16.5px; color: var(--ink-soft); margin-bottom: 30px; }

.download-qr {
  margin-top: 26px;
  display: flex;
  align-items: center;
  gap: 14px;
  opacity: 0;
  transition: opacity .5s;
}
.download-qr.show { opacity: 1; }

#qrImg {
  width: 110px; height: 110px;
  border-radius: 16px;
  border: 3px solid #fff;
  box-shadow: var(--shadow-soft);
  background: #fff;
}

.download-qr-tip { font-family: var(--font-cute); font-size: 15px; color: var(--ink-soft); }

.download-note {
  margin-top: 22px;
  background: var(--pink-100);
  border: 2px dashed var(--pink-300);
  border-radius: var(--radius-sm);
  padding: 13px 18px;
  font-size: 13px;
  color: var(--ink-soft);
}

/* ============================================================
   页脚
   ============================================================ */
.footer {
  background: linear-gradient(180deg, var(--ink) 0%, #36201f 100%);
  color: #fff;
  padding: 56px 0 34px;
  position: relative;
  overflow: hidden;
}
.footer::before {
  content: '🌸';
  position: absolute;
  font-size: 120px;
  opacity: .06;
  top: -10px; right: 6%;
  transform: rotate(18deg);
}

.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }

.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-logo { width: 46px; height: 46px; border-radius: 14px; border: 2px solid rgba(255, 255, 255, .25); }
.footer-name { font-family: var(--font-cute); font-size: 24px; }
.footer-slogan { font-size: 13px; color: rgba(255, 255, 255, .55); margin-top: 4px; }

.footer-brand { flex-direction: column; align-items: flex-start; gap: 6px; }
.footer-brand-row { display: flex; align-items: center; gap: 12px; }

.footer-links { display: flex; gap: 26px; }
.footer-links a {
  color: rgba(255, 255, 255, .72);
  text-decoration: none;
  font-size: 14.5px;
  font-family: var(--font-cute);
  transition: color .25s, transform .25s;
}
.footer-links a:hover { color: #ffb3ba; transform: translateY(-2px); }

.footer-meta { text-align: right; font-size: 12.5px; color: rgba(255, 255, 255, .45); line-height: 1.8; }

/* ============================================================
   Toast
   ============================================================ */
.toast {
  position: fixed;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: rgba(58, 32, 33, .94);
  color: #fff;
  font-size: 14.5px;
  padding: 13px 26px;
  border-radius: 999px;
  box-shadow: 0 12px 34px rgba(0, 0, 0, .28);
  opacity: 0;
  pointer-events: none;
  transition: opacity .35s, transform .35s;
  z-index: 10000;
  max-width: 86vw;
  text-align: center;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ============================================================
   滚动渐入动画
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity .7s cubic-bezier(.2, .7, .3, 1), transform .7s cubic-bezier(.2, .7, .3, 1);
}
.reveal.revealed { opacity: 1; transform: translateY(0); }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; gap: 20px; }
  .hero-visual { min-height: 520px; margin-top: 10px; }
  .hero-mascot { right: auto; left: 50%; transform: translateX(-50%) rotate(2.5deg); }
  @keyframes mascotFloat {
    0%, 100% { transform: translateX(-50%) rotate(2.5deg) translateY(0); }
    50% { transform: translateX(-50%) rotate(2.5deg) translateY(-12px); }
  }
  .phone-hero { left: 4%; }
  .hero-bubble-2 { right: 50%; }

  /* 平板区间:三台手机放不下时自动换行,避免横向溢出 */
  .screens-row { flex-wrap: wrap; gap: 70px 30px; }

  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .download-card { grid-template-columns: 1fr; padding: 46px 36px; text-align: center; }
  .download-visual { order: -1; }
  .download-qr { justify-content: center; }
}

@media (max-width: 760px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-burger { display: flex; }

  .nav-links.open {
    display: flex;
    position: absolute;
    top: 100%; left: 4%; right: 4%;
    flex-direction: column;
    background: #fff;
    border-radius: var(--radius-md);
    padding: 12px;
    box-shadow: var(--shadow-pop);
    border: 2px solid var(--pink-200);
  }

  .hero { padding-top: 118px; }
  .hero-title { font-size: 48px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { justify-content: center; }
  .hero-meta { width: 100%; justify-content: space-around; padding: 14px 10px; }
  .hero-meta-divider { display: none; }

  .hero-visual { min-height: 480px; }
  .hero-mascot { width: min(320px, 94%); }
  .phone { width: 240px; height: 500px; }
  .phone-hero { transform: rotate(-3deg) translateY(30px); }
  @keyframes phoneFloat {
    0%, 100% { transform: rotate(-3deg) translateY(30px); }
    50% { transform: rotate(-3deg) translateY(16px); }
  }

  .features-grid { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }

  .screens-row { flex-direction: column; align-items: center; gap: 70px; }
  .phone-tilt-left, .phone-tilt-right { transform: none; }
  .phone-tilt-left:hover, .phone-tilt-right:hover { transform: translateY(6px) scale(1.02); }

  .download-card { padding: 38px 22px; }
  .download-title { font-size: 30px; }
  .btn-download-xl { width: 100%; }
  .btn-download-xl .btn-download-inner { justify-content: center; }

  .footer-inner { flex-direction: column; text-align: center; }
  .footer-brand { align-items: center; }
  .footer-brand-row { justify-content: center; }
  .footer-meta { text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}