/* ============================================
   捡手机文学 - 沉浸式手机模拟样式
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --wechat-green: #07C160;
  --wechat-bg: #ededed;
  --wechat-header: #ededed;
  --phone-width: 375px;
  --phone-radius: 44px;
  --phone-bezel: 8px;
  --notch-width: 126px;
  --notch-height: 36px;
  --status-bar-h: 54px;
  --safe-top: 0px;
  --safe-bottom: 0px;
}

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  background: #000;
}

/* --- Desktop Background: 夜晚街道氛围 --- */
.desktop-bg {
  position: fixed; inset: 0; z-index: 0;
  background: #0a0a12;
  overflow: hidden;
}

/* 地面纹理 */
.desktop-bg::before {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 60%;
  background:
    linear-gradient(180deg, transparent 0%, rgba(30,25,20,0.5) 30%, rgba(40,32,24,0.7) 100%);
}

/* 路灯暖光效果 - 更亮 */
.desktop-bg::after {
  content: '';
  position: absolute; inset: 0;
  background:
    /* 主路灯光晕 - 大面积柔和暖光 */
    radial-gradient(ellipse 500px 400px at 50% 10%, rgba(255,200,120,0.18) 0%, transparent 100%),
    /* 地面中心暖光 - 手机附近 */
    radial-gradient(ellipse 500px 300px at 50% 55%, rgba(255,185,90,0.1) 0%, transparent 100%),
    /* 左侧远处暖光 */
    radial-gradient(circle 250px at 10% 40%, rgba(255,180,100,0.06) 0%, transparent 100%),
    /* 右侧远处冷光 */
    radial-gradient(circle 200px at 90% 35%, rgba(120,160,220,0.05) 0%, transparent 100%),
    /* 整体微弱暖调提亮 */
    radial-gradient(ellipse 800px 600px at 50% 50%, rgba(255,200,140,0.04) 0%, transparent 100%);
  animation: streetlightFlicker 6s ease-in-out infinite alternate;
}

/* 路灯微微闪烁 */
@keyframes streetlightFlicker {
  0%   { opacity: 0.9; }
  30%  { opacity: 1; }
  50%  { opacity: 0.95; }
  70%  { opacity: 1; }
  100% { opacity: 0.92; }
}

/* 街道环境光粒子 */
.street-dust {
  position: fixed; inset: 0; z-index: 1;
  pointer-events: none;
  overflow: hidden;
}
.street-dust-particle {
  position: absolute;
  width: 2px; height: 2px;
  background: rgba(255, 210, 140, 0.25);
  border-radius: 50%;
  animation: dustFloat linear infinite;
}
@keyframes dustFloat {
  0% { transform: translateY(0) translateX(0); opacity: 0; }
  15% { opacity: 0.5; }
  85% { opacity: 0.3; }
  100% { transform: translateY(-150px) translateX(40px); opacity: 0; }
}

/* --- Phone Frame --- */
.phone-frame {
  position: fixed; z-index: 10;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  /* Height-first: fit within viewport, then derive width from aspect ratio */
  height: min(calc(100vh - 40px), calc(100dvh - 40px), 812px);
  aspect-ratio: 9 / 18;
  max-width: var(--phone-width);
  border-radius: var(--phone-radius);
  border: var(--phone-bezel) solid #1c1c1e;
  background: #000;
  box-shadow:
    0 0 0 2px #333,
    0 20px 60px rgba(0,0,0,0.7),
    0 40px 100px rgba(255,200,120,0.06),
    0 0 80px rgba(255,180,100,0.03);
  overflow: hidden;
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.phone-frame.hidden {
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.85);
  pointer-events: none;
}
.phone-frame.entering {
  animation: phoneEnter 0.8s cubic-bezier(0.25, 0.1, 0.25, 1) forwards;
}
@keyframes phoneEnter {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(0.7) translateY(40px); }
  100% { opacity: 1; transform: translate(-50%, -50%) scale(1) translateY(0); }
}

/* --- Notch (Dynamic Island) --- */
.notch {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: var(--notch-width);
  height: var(--notch-height);
  background: #000;
  border-radius: 18px;
  z-index: 100;
}

/* --- Status Bar --- */
.status-bar {
  position: absolute; top: 0; left: 0; right: 0;
  height: var(--status-bar-h);
  display: flex; align-items: center;
  justify-content: space-between;
  padding: 10px 24px 0;
  z-index: 90;
  color: #fff;
  font-size: 14px; font-weight: 600;
  pointer-events: none;
  transition: color 0.3s, opacity 0.4s ease;
}
.status-bar.dark-text { color: #000; }
.status-icons { display: flex; gap: 5px; align-items: center; }
.status-icon { opacity: 0.9; display: block; }

/* --- Phone Screen (contains all views) --- */
.phone-screen {
  position: absolute; inset: 0;
  overflow: hidden;
  container-type: size;
  container-name: phone;
}

/* --- Views --- */
.view {
  position: absolute; inset: 0;
  display: none;
  opacity: 0;
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.view.active {
  display: flex;
  flex-direction: column;
  opacity: 1;
}

/* ============================================
   View 1: Landing Page (全屏浮层，在手机框之上)
   ============================================ */
.landing-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: linear-gradient(180deg, #08080e 0%, #0c0c14 40%, #0a0910 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  transition: opacity 0.6s ease;
}
.landing-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.view-landing {
  background: transparent;
  align-items: center;
  justify-content: center;
}

.landing-scene {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  position: relative;
}

/* Particles */
.particles {
  position: absolute; inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.particle {
  position: absolute;
  width: 3px; height: 3px;
  background: rgba(255,255,255,0.3);
  border-radius: 50%;
  animation: particleDrift linear infinite;
}
@keyframes particleDrift {
  0% { transform: translateY(0) translateX(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-200px) translateX(30px); opacity: 0; }
}

/* Phone on ground */
.landing-phone-glow {
  position: absolute;
  width: 120px; height: 200px;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(ellipse, rgba(255,200,120,0.15) 0%, transparent 70%);
  filter: blur(20px);
  animation: phoneGlow 2s ease-in-out infinite alternate;
}
@keyframes phoneGlow {
  0% { opacity: 0.5; transform: translate(-50%, -50%) scale(0.9); }
  100% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
}

.landing-phone-shape {
  width: 80px;
  height: 150px;
  border: 2px solid rgba(255,220,160,0.12);
  border-radius: 14px;
  background: linear-gradient(145deg, rgba(20,18,15,0.9), rgba(10,10,12,0.95));
  position: relative;
  transform: perspective(500px) rotateX(20deg);
  box-shadow: 0 0 30px rgba(255,190,100,0.1), 0 10px 40px rgba(0,0,0,0.5);
  overflow: hidden;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.8s ease, box-shadow 0.3s ease;
}
.landing-phone-shape.visible {
  opacity: 1;
  animation: phoneBob 3s ease-in-out infinite, phoneVibrate 4s ease-in-out infinite;
}
.landing-phone-shape:hover {
  box-shadow: 0 0 50px rgba(255,190,100,0.25), 0 10px 40px rgba(0,0,0,0.5);
}
@keyframes phoneBob {
  0%, 100% { transform: perspective(500px) rotateX(20deg) translateY(0); }
  50% { transform: perspective(500px) rotateX(20deg) translateY(-5px); }
}
@keyframes phoneVibrate {
  0%, 85%, 100% { transform: perspective(500px) rotateX(20deg) translateX(0); }
  87% { transform: perspective(500px) rotateX(20deg) translateX(-2px); }
  89% { transform: perspective(500px) rotateX(20deg) translateX(2px); }
  91% { transform: perspective(500px) rotateX(20deg) translateX(-2px); }
  93% { transform: perspective(500px) rotateX(20deg) translateX(1px); }
  95% { transform: perspective(500px) rotateX(20deg) translateX(0); }
}

.landing-phone-screen-hint {
  position: absolute; inset: 4px;
  border-radius: 10px;
  background: linear-gradient(180deg, #1a1a2e 0%, #0d0d1a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.landing-notification {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 6px;
  background: rgba(255,255,255,0.1);
  border-radius: 8px;
  transform: scale(0.6);
}
.landing-notif-icon { font-size: 10px; }
.landing-notif-text { font-size: 5px; color: rgba(255,255,255,0.7); white-space: nowrap; }

.landing-text {
  display: none;
}

/* 对话气泡 */
.landing-dialogue {
  margin-top: 30px;
  padding: 10px 20px;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(10px);
  border-radius: 16px 16px 16px 4px;
  color: rgba(255,255,255,0.9);
  font-size: 15px;
  letter-spacing: 1px;
  opacity: 0;
  transform: translateY(10px) scale(0.9);
  transition: all 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
  position: relative;
}
.landing-dialogue.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* 叙事弹窗 */
.landing-narration {
  margin-top: 20px;
  color: rgba(255,220,180,0.7);
  font-size: 14px;
  letter-spacing: 3px;
  opacity: 0;
  transform: translateY(8px);
  transition: all 0.6s ease;
}
.landing-narration.visible {
  opacity: 1;
  transform: translateY(0);
}

.landing-btn {
  display: none;
}

.landing-tap-hint {
  margin-top: 24px;
  font-size: 12px;
  color: rgba(255,220,180,0.7);
  letter-spacing: 3px;
  opacity: 0;
  transition: opacity 0.8s ease;
}
.landing-tap-hint.visible {
  opacity: 1;
  animation: hintBreath 3s ease-in-out infinite;
}
@keyframes hintBreath {
  0%, 100% { opacity: 0.2; }
  50% { opacity: 0.5; }
}

/* ============================================
   View 2: Lock Screen
   ============================================ */
.view-lockscreen {
  background: #000;
}
/* Screen off: black, everything hidden */
.view-lockscreen.screen-off .lockscreen-bg,
.view-lockscreen.screen-off .lockscreen-content {
  opacity: 0;
  transition: opacity 0.4s ease;
}
.view-lockscreen.screen-off ~ .status-bar,
.phone-screen:has(.view-lockscreen.screen-off.active) ~ .status-bar {
  opacity: 0;
}
.view-lockscreen .lockscreen-bg,
.view-lockscreen .lockscreen-content {
  transition: opacity 0.4s ease;
}

/* Screen off tap hint */
.screen-off-hint {
  position: absolute;
  bottom: 30%;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.5);
  font-size: 13px;
  letter-spacing: 2px;
  z-index: 5;
  animation: hintBreath 3s ease-in-out infinite;
  transition: opacity 0.3s ease;
}
.view-lockscreen:not(.screen-off) .screen-off-hint {
  opacity: 0;
  pointer-events: none;
  animation: none;
  display: none;
}
.lockscreen-bg {
  position: absolute; inset: 0;
  background: url('wallpaper.PNG') center center / cover no-repeat;
}
.lockscreen-bg::before {
  content: '';
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.15);
}

.lockscreen-content {
  position: relative; z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  padding-top: calc(var(--status-bar-h) + 14px);
}

.lock-icon {
  font-size: 14px;
  margin-bottom: 10px;
  opacity: 0.6;
}

.lock-time {
  font-size: 80px;
  font-weight: 500;
  color: #fff;
  letter-spacing: 0px;
  line-height: 1;
  font-feature-settings: 'tnum';
  font-family: ui-rounded, "SF Pro Rounded", -apple-system, system-ui, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lock-time-colon {
  position: relative;
  top: -6px;
  margin: 0 1px;
}

.lock-date {
  font-size: 15px;
  color: #fff;
  margin-bottom: 6px;
  font-weight: 600;
  letter-spacing: 1px;
}

.lock-notifications {
  position: absolute;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  width: 93%;
}

.lock-notif {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 14px;
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border-radius: 14px;
}

.lock-notif-icon-wrap {
  flex-shrink: 0;
}
img.lock-notif-wechat-icon {
  width: 34px; height: 34px;
  border-radius: 8px;
  object-fit: cover;
}

.lock-notif-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.lock-notif-app { font-size: 13px; color: #fff; font-weight: 500; }
.lock-notif-sub { font-size: 12px; color: rgba(255,255,255,0.6); }
.lock-notif-time { font-size: 12px; color: rgba(255,255,255,0.45); flex-shrink: 0; }

.lock-bottom {
  position: absolute;
  bottom: 30px;
  left: 0; right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
}
.lock-bottom-btn {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
}
.lock-bottom-btn:active {
  background: rgba(255,255,255,0.3);
}
.lock-home-bar {
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: rgba(255,255,255,0.75);
  border-radius: 2px;
}
}

/* ============================================
   View 3: Home Screen
   ============================================ */
.view-homescreen {
  background: #000;
}
.homescreen-bg {
  position: absolute; inset: 0;
  background: url('wallpaper.PNG') center center / cover no-repeat;
  filter: blur(18px) brightness(0.75) saturate(1.2);
  transform: scale(1.15);
}
.homescreen-bg::after {
  content: '';
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.15);
}

.homescreen-content {
  position: relative; z-index: 2;
  display: flex;
  flex-direction: column;
  height: 100%;
  padding-top: calc(var(--status-bar-h) + 2cqh);
  overflow: hidden;
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2.5cqh 0;
  padding: 1cqh 3cqw;
  flex: 1;
  align-content: start;
}

.app-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5cqh;
  cursor: pointer;
  position: relative;
  -webkit-tap-highlight-color: transparent;
}
.app-icon:active .app-icon-img {
  transform: scale(0.9);
}

.icon-shake {
  animation: iconShake 0.4s ease-in-out !important;
}
@keyframes iconShake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-3px); }
  40% { transform: translateX(3px); }
  60% { transform: translateX(-2px); }
  80% { transform: translateX(2px); }
}

.app-icon-img {
  width: 18cqw; height: 18cqw;
  border-radius: 24%;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px;
  background: none;
  transition: transform 0.15s ease;
  object-fit: cover;
}

/* img 类型的图标 */
img.app-icon-img {
  display: block;
  background: none;
}

.app-wechat {
  background: linear-gradient(135deg, #07C160, #06AD56) !important;
}


.app-name {
  font-size: 3.5cqw;
  color: rgba(255,255,255,0.85);
  text-align: center;
  max-width: 18cqw;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.app-badge {
  position: absolute;
  top: -1cqw; right: 0cqw;
  min-width: 7cqw; height: 7cqw;
  background: #ff3b30;
  color: #fff;
  font-size: 4cqw;
  font-weight: 600;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  padding: 0 1cqw;
  animation: badgePulse 2s ease-in-out infinite;
}
@keyframes badgePulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

/* Search bar */
.home-search {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1cqw;
  margin: 1cqh auto;
  padding: 0.8cqh 3cqw;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 0.5px solid rgba(255,255,255,0.2);
  border-radius: 10cqw;
  color: rgba(255,255,255,0.5);
  font-size: 3.5cqw;
  flex-shrink: 0;
}
.home-search svg {
  flex-shrink: 0;
}

/* Dock */
.dock {
  display: flex;
  justify-content: center;
  gap: 5cqw;
  padding: 2.5cqh 4cqw;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(40px) saturate(1.5);
  -webkit-backdrop-filter: blur(40px) saturate(1.5);
  border: 0.5px solid rgba(255,255,255,0.2);
  border-radius: 8cqw;
  margin: 0 3cqw 2cqh;
  flex-shrink: 0;
}
.dock-icon .app-name { display: none; }

/* WeChat Hint Dialogue Boxes (same style as landing dialogue) */
.wechat-hint-box {
  position: absolute;
  left: 6%;
  transform: translateY(10px) scale(0.9);
  padding: 10px 20px;
  width: 55%;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 16px 16px 16px 4px;
  color: rgba(255,255,255,0.9);
  font-size: 15px;
  letter-spacing: 1px;
  opacity: 0;
  pointer-events: none;
  z-index: 60;
  transition: all 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
}
#wechatHint1 {
  top: 55%;
}
#wechatHint2 {
  top: calc(55% + 58px);
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  border-radius: 16px 16px 16px 4px;
}
.wechat-hint-box.show {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Toast */
.toast {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  background: rgba(0,0,0,0.8);
  backdrop-filter: blur(10px);
  color: #fff;
  padding: 14px 24px;
  border-radius: 12px;
  font-size: 14px;
  opacity: 0;
  transition: all 0.3s ease;
  pointer-events: none;
  z-index: 50;
  white-space: nowrap;
}
.toast.show {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

/* ============================================
   View 4: Card Carousel Episode Picker
   ============================================ */
.view-chatlist {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
  z-index: 2;
}
.picker-header,
.card-carousel,
.card-indicator {
  position: relative;
  z-index: 1;
}

.picker-header {
  height: var(--status-bar-h);
  padding-top: calc(var(--status-bar-h) - 30px);
  display: flex;
  align-items: center;
  padding-left: 8px;
  padding-right: 16px;
  flex-shrink: 0;
  position: relative;
  z-index: 5;
}
.picker-back {
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
}
.picker-back svg path {
  stroke: #333;
}
.picker-title {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(0,0,0,0.6);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1px;
}

.card-carousel {
  flex: 1;
  display: flex;
  align-items: center;
  overflow: hidden;
  position: relative;
  touch-action: pan-y;
}

.card-track {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 calc(50% - 55px);
  transition: transform 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
  will-change: transform;
}
.card-track.dragging {
  transition: none;
}

.ep-card {
  flex-shrink: 0;
  width: 110px;
  height: 160px;
  border-radius: 14px;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px;
  cursor: pointer;
  transform: scale(0.85);
  opacity: 0.5;
  transition: transform 0.4s ease, opacity 0.4s ease;
  box-shadow: 0 2px 12px rgba(0,0,0,0.1);
  -webkit-tap-highlight-color: transparent;
}
.ep-card.active {
  transform: scale(1);
  opacity: 1;
  box-shadow: 0 4px 24px rgba(0,0,0,0.15);
}

.ep-card-title {
  font-size: 13px;
  font-weight: 500;
  color: #333;
  text-align: center;
  line-height: 1.5;
  word-break: break-word;
  display: -webkit-box;
  -webkit-line-clamp: 6;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-indicator {
  display: flex;
  justify-content: center;
  gap: 4px;
  padding: 16px 0 24px;
  flex-shrink: 0;
}
.card-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: rgba(0,0,0,0.15);
  transition: background 0.3s, transform 0.3s;
}
.card-dot.active {
  background: rgba(0,0,0,0.5);
  transform: scale(1.3);
}

/* ============================================
   View 5: WeChat Main Interface
   ============================================ */
.view-wechat {
  background: var(--wechat-bg);
}

.wechat-header {
  height: calc(var(--status-bar-h) + 26px);
  padding-top: var(--status-bar-h);
  background: var(--wechat-header);
  display: flex;
  align-items: center;
  justify-content: center;
  padding-left: 16px;
  padding-right: 16px;
  flex-shrink: 0;
  position: relative;
}
.wechat-title {
  font-size: 13px;
  font-weight: 600;
  color: #000;
}
.wechat-header-actions {
  position: absolute;
  right: 16px;
  display: flex; gap: 18px;
  color: #000;
}

.wechat-search-wrap {
  background: var(--wechat-header);
  padding: 4px 0 5px;
  flex-shrink: 0;
}
.wechat-search {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin: 0 12px;
  padding: 4px 0;
  background: #fff;
  border-radius: 6px;
  color: #999;
  font-size: 12px;
  flex-shrink: 0;
}
.wechat-search svg {
  width: 18px;
  height: 18px;
}

.wechat-main-list {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  background: #fff;
}

.chat-item {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  gap: 12px;
  cursor: pointer;
  border-bottom: 0.5px solid rgba(0,0,0,0.05);
  transition: background 0.15s;
  background: #fff;
  -webkit-tap-highlight-color: transparent;
}
.chat-item:active {
  background: rgba(0,0,0,0.05);
}
.chat-pinned {
  background: #ededed;
}
.chat-pinned:active {
  background: #e5e5e5;
}

.chat-avatar-wrap {
  position: relative;
  flex-shrink: 0;
}
.chat-avatar-wrap .chat-unread {
  position: absolute;
  top: -4px; right: -4px;
}
.chat-avatar {
  width: 40px; height: 40px;
  border-radius: 6px;
  flex-shrink: 0;
  background: linear-gradient(135deg, #e0e0e0, #bdbdbd);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
  overflow: hidden;
}
.chat-avatar img {
  width: 100%; height: 100%;
  object-fit: cover;
}

.chat-info {
  flex: 1;
  min-width: 0;
}
.chat-info-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}
.chat-name {
  font-size: 13px;
  color: #000;
  font-weight: 500;
}
.chat-time {
  font-size: 11px;
  color: #999;
  flex-shrink: 0;
}
.chat-info-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.chat-last-msg {
  font-size: 11px;
  color: #999;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}
.chat-unread {
  min-width: 14px; height: 14px;
  background: #ff3b30;
  color: #fff;
  font-size: 9px;
  font-weight: 600;
  border-radius: 7px;
  display: flex; align-items: center; justify-content: center;
  padding: 0 3px;
  margin-left: 8px;
  flex-shrink: 0;
}

.wechat-tabs {
  background: var(--wechat-header);
  border-top: 0.5px solid rgba(0,0,0,0.1);
  flex-shrink: 0;
  padding-bottom: env(safe-area-inset-bottom, 0);
}
.wechat-tabs-img {
  display: block;
  width: 105%;
  height: auto;
  margin-left: -2%;
  pointer-events: none;
  user-select: none;
  -webkit-user-drag: none;
}

/* ============================================
   View 6: Reading View
   ============================================ */
.view-reading {
  background: var(--wechat-bg);
}

.reading-header {
  height: calc(var(--status-bar-h) + 34px);
  padding-top: var(--status-bar-h);
  background: var(--wechat-header);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-left: 8px;
  padding-right: 16px;
  border-bottom: 0.5px solid rgba(0,0,0,0.1);
  flex-shrink: 0;
}

.reading-back {
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  color: #000;
  display: flex;
  align-items: center;
}

.reading-title {
  font-size: 13px;
  font-weight: 500;
  color: #000;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.reading-more {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: #000;
  padding: 8px;
}

.reading-content {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  background: var(--wechat-bg);
}

.reading-content img {
  display: block;
  width: 100%;
  height: auto;
}

.reading-content .img-placeholder {
  width: 100%;
  aspect-ratio: 1179 / 2101;
  background: linear-gradient(180deg, #f0f0f0, #e0e0e0);
  animation: shimmer 1.5s ease-in-out infinite;
}
@keyframes shimmer {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

.reading-footer {
  background: var(--wechat-bg);
  padding: 30px 20px 40px;
  text-align: center;
}

.reading-end-mark {
  font-size: 14px;
  color: #999;
  margin-bottom: 20px;
  letter-spacing: 2px;
}

.reading-next-btn {
  padding: 12px 32px;
  font-size: 15px;
  color: #fff;
  background: var(--wechat-green);
  border: none;
  border-radius: 24px;
  cursor: pointer;
  transition: transform 0.15s, opacity 0.15s;
}
.reading-next-btn:active {
  transform: scale(0.95);
  opacity: 0.8;
}

/* ============================================
   Transitions
   ============================================ */
/* Landing: phone pickup animation */
.landing-scene.picking-up .landing-phone-shape {
  animation: phonePickup 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}
@keyframes phonePickup {
  0% {
    transform: perspective(500px) rotateX(20deg);
  }
  40% {
    transform: perspective(500px) rotateX(0deg) scale(1.5) translateY(-30px);
  }
  100% {
    transform: perspective(500px) rotateX(0deg) scale(6) translateY(-10px);
    opacity: 0;
  }
}
.landing-scene.picking-up .landing-text,
.landing-scene.picking-up .landing-btn,
.landing-scene.picking-up .landing-phone-glow {
  animation: fadeOutQuick 0.3s ease forwards;
}
@keyframes fadeOutQuick {
  to { opacity: 0; }
}

.view-lockscreen.enter-unlock {
  animation: slideUp 0.4s ease forwards;
}
@keyframes slideUp {
  0% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(-100%); opacity: 0; }
}

/* Swipe up to go home animation */
.slide-down-out {
  animation: slideDownOut 0.35s cubic-bezier(0.4, 0, 1, 1) forwards;
}
@keyframes slideDownOut {
  0% { transform: translateY(0) scale(1); opacity: 1; }
  100% { transform: translateY(30px) scale(0.9); opacity: 0; }
}

.view-chatlist.slide-in,
.view-wechat.slide-in {
  animation: slideInRight 0.35s cubic-bezier(0.25, 0.1, 0.25, 1) forwards;
}
@keyframes slideInRight {
  0% { transform: translateX(100%); opacity: 1; }
  100% { transform: translateX(0); opacity: 1; }
}

.view-reading.slide-in {
  animation: slideInRight 0.35s cubic-bezier(0.25, 0.1, 0.25, 1) forwards;
}

.view-reading.slide-out {
  animation: slideOutRight 0.3s cubic-bezier(0.25, 0.1, 0.25, 1) forwards;
}
@keyframes slideOutRight {
  0% { transform: translateX(0); }
  100% { transform: translateX(100%); }
}

/* ============================================
   Mobile Responsive
   ============================================ */
@media (max-width: 480px) {
  .desktop-bg { display: none; }

  .phone-frame {
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    border-radius: 0;
    border: none;
    box-shadow: none;
    top: 0; left: 0;
    transform: none;
    aspect-ratio: auto;
  }

  .notch { display: none; }

  .status-bar {
    padding-top: env(safe-area-inset-top, 0);
    height: calc(env(safe-area-inset-top, 0) + 44px);
  }

  :root {
    --status-bar-h: calc(env(safe-area-inset-top, 20px) + 24px);
  }
}

/* Tablet/medium screens */
@media (min-width: 481px) and (max-width: 768px) {
  :root { --phone-width: 380px; }
}

/* Large desktop */
@media (min-width: 769px) {
  :root { --phone-width: 390px; }
}

/* --- Utility --- */
/* Note: .phone-frame.hidden uses opacity, not display:none */

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}