/**
 * 当 Next 打包的 Tailwind CSS 未能加载（内置浏览器缓存、chunk 404 等）时，
 * 仍能保证「分期生活」首页手机框内主要区块可读的排版。
 * 与 Tailwind 并存：类名以 cff- 为前缀，避免污染。
 */
*,
*::before,
*::after {
  box-sizing: border-box;
}

/**
 * 与 app/page.tsx 中 main.cff-app-shell 一致：移动端全屏白底；≥640px 为手机框。
 * Tailwind 未加载时的布局兜底。
 */
.cff-app-shell {
  position: relative;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  width: 100%;
  min-height: 100vh;
  min-height: 100dvh;
  height: 100%;
  background: #fff;
  overflow-x: hidden;
}

@media (min-width: 640px) {
  .cff-app-shell {
    width: 100%;
    max-width: 390px;
    height: 844px;
    min-height: 844px;
    margin-top: 2rem;
    margin-bottom: 2rem;
    margin-left: auto;
    margin-right: auto;
    border: 8px solid #1f2937;
    border-radius: 3rem;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  }
}

.cff-scroll {
  flex: 1 1 0;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  background: #f9fafb;
  -webkit-overflow-scrolling: touch;
}

/* Header */
.cff-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: #fff;
  border-bottom: 1px solid #e5e7eb;
  min-height: 56px;
}

.cff-header > div:first-child {
  display: flex;
  align-items: center;
  gap: 8px;
}

.cff-header h1 {
  margin: 0;
  font-size: 22px;
  line-height: 1.2;
  font-weight: 800;
  color: #000;
  font-family: "PingFang SC", "SF Pro Display", "Helvetica Neue", sans-serif;
}

.cff-header > div:last-child {
  display: flex;
  align-items: center;
  gap: 12px;
}

.cff-header .cff-icon-btn {
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  border: 1px solid #9ca3af;
}

/* 分期卡片 */
.cff-credit {
  margin: 16px;
  padding: 16px;
  border-radius: 16px;
  background: linear-gradient(135deg, #5b6be8 0%, #8b7cf7 100%);
  color: #fff;
}

.cff-credit-row {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 12px;
}

.cff-credit-left {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  min-width: 0;
}

.cff-credit-left p {
  margin: 0;
}

.cff-credit .cff-balance-label {
  font-size: 15px;
  font-weight: 700;
}

.cff-credit .cff-balance-value {
  font-size: 20px;
  font-weight: 700;
  color: #ffd6e7;
}

.cff-credit button[aria-label="智能方案管家"] {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  padding: 8px 20px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0.1));
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}

.cff-credit button[aria-label="智能方案管家"] svg {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.cff-credit-links {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 20px;
  gap: 16px;
}

.cff-credit-links > div {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  opacity: 0.9;
}

.cff-credit-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
  font-size: 13px;
  font-weight: 700;
}

.cff-credit-footer > div {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* iPhone 横幅 */
.cff-iphone-banner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 16px;
  height: 240px;
  border-radius: 16px;
  overflow: hidden;
  background: linear-gradient(180deg, #1a1a2e 0%, #252540 50%, #3d2a4d 100%);
}

.cff-iphone-banner .cff-banner-top {
  padding: 16px 16px 0;
  width: 100%;
  box-sizing: border-box;
}

.cff-iphone-banner .cff-banner-title-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: #fff;
}

.cff-iphone-banner .cff-banner-title-row svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.cff-iphone-banner .cff-banner-title-row span {
  font-size: 18px;
  font-weight: 600;
}

.cff-iphone-phones {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 0;
}

/* 与 Tailwind -space-x-5 等效：侧向重叠层叠 */
.cff-iphone-phones .cff-mock-phone + .cff-mock-phone {
  margin-left: -20px;
}

/* 三台手机为纯 CSS 示意，避免 Tailwind 未加载时整块「消失」 */
.cff-mock-phone {
  flex-shrink: 0;
  border-radius: 16px;
  box-sizing: border-box;
}

.cff-mock-phone-sm {
  width: 54px;
  height: 96px;
}

.cff-mock-phone-md {
  width: 66px;
  height: 114px;
}

.cff-mock-phone--left {
  background: linear-gradient(to bottom, #f3f4f6, #e5e7eb);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
  transform: rotate(-6deg);
  z-index: 10;
}

.cff-mock-phone--center {
  background: linear-gradient(to bottom, #fb923c, #ea580c);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.25);
  z-index: 20;
}

.cff-mock-phone--right {
  background: linear-gradient(to bottom, #475569, #0f172a);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
  transform: rotate(6deg);
  z-index: 10;
}

.cff-mock-phone-bezel {
  width: 100%;
  height: 100%;
  border-radius: 14px;
  border: 2px solid rgba(0, 0, 0, 0.12);
  box-sizing: border-box;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 6px;
}

.cff-mock-phone--center .cff-mock-phone-bezel {
  border-color: rgba(253, 186, 116, 0.85);
  padding-top: 8px;
}

.cff-mock-notch-sm {
  width: 24px;
  height: 6px;
  background: #9ca3af;
  border-radius: 9999px;
}

.cff-mock-notch-md {
  width: 32px;
  height: 8px;
  background: #c2410c;
  border-radius: 9999px;
}

.cff-mock-notch-dark {
  width: 24px;
  height: 6px;
  background: #64748b;
  border-radius: 9999px;
}

.cff-iphone-cta {
  display: flex;
  width: 100%;
  box-sizing: border-box;
  justify-content: center;
  padding: 4px 16px 12px;
}

.cff-iphone-cta button {
  border-radius: 9999px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  background: #fff;
  color: #111;
  border: none;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
  cursor: pointer;
}

/* 四宫格 */
.cff-kong {
  margin: 16px;
  padding: 12px;
  border-radius: 16px;
  background: #fff;
}

.cff-kong-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.cff-kong-grid > div {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.cff-kong-grid .cff-kong-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cff-kong-grid span {
  font-size: 13px;
  color: #6b7280;
  text-align: center;
}

/* 签到 */
.cff-daily {
  margin: 16px;
  padding: 12px;
  border-radius: 16px;
  background: #fff;
}

.cff-daily-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cff-daily-days {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.cff-daily-slot {
  flex-shrink: 0;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-sizing: border-box;
}

.cff-daily-slot--narrow {
  width: 56px;
  padding: 8px;
  background: #f3f4f6;
}

.cff-daily-slot--active {
  width: 112px;
  min-height: 148px;
  padding: 10px;
  background: #fff7ed;
  border: 1px solid #fed7aa;
}

.cff-daily-slot .cff-daily-claim-btn {
  margin-top: 6px;
  font-size: 10px;
  line-height: 1.2;
  padding: 4px 8px;
  border-radius: 9999px;
  border: none;
  background: #111;
  color: #fff;
  cursor: pointer;
  white-space: nowrap;
}

/* 吸顶搜索区 */
.cff-sticky-bar {
  position: sticky;
  top: 56px;
  z-index: 20;
  background: #f9fafb;
}

.cff-sticky-bar.cff-sticky-active {
  background: #fff;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.08);
}

.cff-search-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
}

.cff-search-input-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  background: #f3f4f6;
  border-radius: 9999px;
  padding: 6px 12px;
}

.cff-tabs-row {
  padding: 0 12px;
  border-top: 1px solid #f3f4f6;
  overflow-x: auto;
}

.cff-tabs-row > div {
  display: flex;
  gap: 20px;
}

.cff-tabs-row button {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
  padding: 10px 0 8px;
  font-size: 15px;
  background: none;
  border: none;
  cursor: pointer;
  color: #6b7280;
}

.cff-tabs-row button.cff-tab-active {
  font-weight: 600;
  color: #111;
}

/* 与标签文字同列居中；非激活用 opacity-0 占位避免高度跳动 */
.cff-tabs-row .cff-tab-indicator {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 9999px;
  background: #111;
  flex-shrink: 0;
}

/* 瀑布流 */
.cff-waterfall {
  position: relative;
  z-index: 10;
  padding: 12px;
}

.cff-waterfall-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.cff-product-card {
  background: #fff;
  border-radius: 16px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.03);
}

.cff-product-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 12px;
}

.cff-product-card .aspect-square,
.cff-product-card [class*="aspect-square"],
.cff-product-thumb {
  aspect-ratio: 1 / 1;
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  margin-bottom: 8px;
  background: linear-gradient(to bottom, rgba(243, 244, 246, 0.6), rgba(229, 231, 235, 0.9));
}

.cff-product-meta {
  display: grid;
  grid-template-rows: 16px minmax(20px, auto) 22px;
  gap: 4px;
  align-items: start;
  min-width: 0;
}

.cff-product-title {
  margin: 0;
  font-size: 12px;
  line-height: 16px;
  color: #111;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
  min-height: 16px;
}

/* AI 悬浮球：相对 main 定位，落在设备（手机框或全屏主区域）内右下角 */
.cff-ai-fab-host {
  position: absolute;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 40;
  width: 64px;
  height: 64px;
  pointer-events: none;
  box-sizing: border-box;
}

.cff-ai-fab-host .cff-ai-fab-hit {
  pointer-events: auto;
  width: 100%;
  height: 100%;
}

/* Lucide：无 Tailwind 时限制默认尺寸 */
.cff-scroll svg {
  display: block;
}

.cff-header svg {
  width: 20px;
  height: 20px;
}

.cff-credit-links svg,
.cff-credit-footer svg {
  width: 12px;
  height: 12px;
}

.cff-kong-grid svg {
  width: 20px;
  height: 20px;
}

.cff-search-row svg {
  width: 16px;
  height: 16px;
}