/* 翻咔官网 — 按设计稿：白底导航、粉主色、分块卡片、深色页脚 */

:root {
  --color-primary: #ff4d6a;
  --color-primary-2: #e94256;
  --color-primary-hover: #e03d54;
  --color-primary-soft: rgba(255, 77, 106, 0.12);
  --color-ink: #1a1a1a;
  --color-muted: #666;
  --color-muted-2: #8e8e93;
  --color-border: #ececec;
  --color-bg: #f6f6f8;
  --color-surface: #ffffff;
  --color-footer: #1a1d26;
  --color-footer-muted: #999999;
  --color-footer-dim: #6b7280;
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 24px;
  --shadow-soft: 0 10px 40px rgba(24, 24, 27, 0.08);
  --shadow-card: 0 8px 28px rgba(24, 24, 27, 0.06);
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --content-max: 42rem;
  --wide-max: 72rem;
  --header-h: 4rem;
  --nav-break: 900px;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-ink);
  background: var(--color-bg);
}

body.nav-open {
  overflow: hidden;
}

a {
  color: var(--color-primary-2);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--color-primary-hover);
}

.container {
  width: 100%;
  max-width: calc(var(--content-max) + 2rem);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1rem, 4vw, 1.5rem);
  padding-right: clamp(1rem, 4vw, 1.5rem);
}

.container--wide {
  max-width: calc(var(--wide-max) + 2rem);
}

/* ========== 顶栏 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.03);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-height: var(--header-h);
  max-width: calc(var(--wide-max) + 2rem);
}

.site-header__center {
  flex: 1;
  display: flex;
  justify-content: center;
  min-width: 0;
}

.site-header__cta--desktop {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--color-ink);
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.site-logo:hover {
  color: var(--color-ink);
}

.site-logo__en {
  font-weight: 600;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.site-logo__mark {
  display: flex;
  align-items: center;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  cursor: pointer;
}

.nav-toggle__bar {
  display: block;
  width: 1.35rem;
  height: 2px;
  margin: 0 auto;
  background: var(--color-ink);
  border-radius: 2px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 2rem);
}

.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.25rem 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__list a {
  display: inline-block;
  padding: 0.35rem 0;
  color: var(--color-ink);
  text-decoration: none;
  font-size: 0.95rem;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.site-nav__list a:hover {
  color: var(--color-primary-2);
}

.site-nav__list a.is-active {
  color: var(--color-primary-2);
  font-weight: 600;
  border-bottom-color: var(--color-primary-2);
}

@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .site-header__cta--desktop {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    flex-shrink: 0;
    margin-left: auto;
  }

  .site-header__cta--desktop .btn {
    padding: 0.4rem 0.75rem;
    font-size: 0.82rem;
    min-height: 2.35rem;
  }

  .site-header__center {
    flex: 0;
    justify-content: flex-end;
  }

  .site-nav {
    position: fixed;
    left: 0;
    right: 0;
    top: var(--header-h);
    bottom: 0;
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    padding: 1.25rem 1.5rem 2rem;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    transform: translateX(100%);
    transition: transform 0.25s ease;
    overflow-y: auto;
    z-index: 99;
  }

  .site-nav.is-open {
    transform: translateX(0);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-nav__list a {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--color-border);
  }

  .site-nav__list a.is-active {
    border-bottom-color: var(--color-border);
    border-left: 3px solid var(--color-primary-2);
    padding-left: 0.5rem;
  }
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.6rem;
  padding: 0.55rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  text-decoration: none;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-2) 100%);
  box-shadow: 0 4px 16px rgba(233, 66, 86, 0.35);
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, filter 0.2s;
}

.btn:hover {
  filter: brightness(1.03);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(233, 66, 86, 0.4);
}

.btn:not(.btn-outline):hover {
  color: #fff;
}

.btn-outline {
  background: var(--color-surface);
  color: var(--color-primary-2);
  border: 2px solid var(--color-primary-2);
  box-shadow: none;
}

.btn-outline:hover {
  background: var(--color-primary-soft);
  color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  box-shadow: none;
}

.btn--sm {
  min-height: 2.35rem;
  padding: 0.4rem 1rem;
  font-size: 0.875rem;
}

.btn--lg {
  min-height: 3rem;
  padding: 0.65rem 1.75rem;
  font-size: 1rem;
}

.btn--block {
  width: 100%;
  margin-top: 0.5rem;
}

.btn--blue {
  background: linear-gradient(135deg, #5b8def 0%, #3d6ad6 100%);
  box-shadow: 0 4px 16px rgba(61, 106, 214, 0.35);
}

.btn--blue:hover {
  box-shadow: 0 6px 20px rgba(61, 106, 214, 0.4);
}

/* ========== Hero 轮播 ========== */
.hero-carousel {
  position: relative;
  padding: clamp(1.25rem, 4vw, 2.5rem) 0 clamp(0.5rem, 2vw, 1rem);
}

.hero-carousel__bg {
  position: absolute;
  inset: 0 0 auto 0;
  height: min(70%, 420px);
  background:
    radial-gradient(ellipse 80% 60% at 15% 20%, rgba(255, 182, 193, 0.45), transparent 50%),
    radial-gradient(ellipse 60% 50% at 85% 10%, rgba(255, 210, 220, 0.5), transparent 45%),
    linear-gradient(180deg, #fff 0%, var(--color-bg) 100%);
  pointer-events: none;
  z-index: 0;
}

.hero-carousel__wrap {
  position: relative;
  z-index: 1;
}

.carousel-shell {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  background: var(--color-surface);
  overflow: hidden;
}

.carousel-viewport {
  position: relative;
  overflow: hidden;
  touch-action: pan-y pinch-zoom;
}

.carousel-track {
  display: flex;
  width: 100%;
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

@media (prefers-reduced-motion: reduce) {
  .carousel-track {
    transition: none;
  }
}

.carousel-slide.hero-slide {
  flex: 0 0 100%;
  width: 100%;
  min-height: clamp(22rem, 58vw, 32rem);
  display: flex;
  align-items: center;
  padding: clamp(1.5rem, 4vw, 2.75rem) clamp(1rem, 3vw, 2rem);
  text-align: left;
  background: var(--color-surface);
}

.hero-slide__inner {
  width: 100%;
  max-width: var(--wide-max);
  margin: 0 auto;
}

.hero-slide__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

@media (min-width: 960px) {
  .hero-slide__grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem 3rem;
  }
}

.hero-slide__title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-ink);
  letter-spacing: -0.02em;
}

.hero-slide__title--sub {
  font-size: clamp(1.35rem, 3.5vw, 2rem);
}

.hero-slide__lead {
  margin: 0 0 1.25rem;
  font-size: clamp(0.95rem, 2vw, 1.05rem);
  color: var(--color-muted);
  line-height: 1.65;
  max-width: 36rem;
}

.hero-slide__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.875rem;
  color: var(--color-muted);
}

.hero-trust__item {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.hero-trust__icon {
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 999px;
  flex-shrink: 0;
}

.hero-trust__icon--blue {
  background: linear-gradient(135deg, #8ec5ff, #5b9df5);
}

.hero-trust__icon--orange {
  background: linear-gradient(135deg, #ffc078, #fd7e14);
}

.hero-trust__icon--mint {
  background: linear-gradient(135deg, #96f2d7, #38d9a9);
}

.hero-slide__visual {
  display: flex;
  justify-content: center;
  min-height: 220px;
}

@media (min-width: 960px) {
  .hero-slide__visual {
    justify-content: flex-end;
  }
}

.hero-phones {
  position: relative;
  width: min(100%, 320px);
  height: clamp(220px, 42vw, 340px);
  margin: 0 auto;
}

@media (min-width: 960px) {
  .hero-phones {
    margin: 0 0 0 auto;
  }
}

.hero-phone {
  position: absolute;
  width: 46%;
  max-width: 150px;
  aspect-ratio: 10 / 19;
  border-radius: 1.75rem;
  border: 3px solid #fff;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.15);
  background: linear-gradient(165deg, #ffeef2 0%, #ffd0d8 40%, #c4b5fd 100%);
}

.hero-phone::before {
  content: "";
  position: absolute;
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  width: 36%;
  height: 5%;
  background: rgba(0, 0, 0, 0.08);
  border-radius: 999px;
}

.hero-phone--back {
  left: 8%;
  top: 12%;
  transform: rotate(-10deg);
  z-index: 0;
  overflow: hidden;
  background-color: #fff;
  background-image: url("static/picture/xUNCxc8cAv9qRPIj7cLlMQ.png");
  background-position: center;
  background-size: auto 118%;
  background-repeat: no-repeat;
  background-origin: padding-box;
  background-clip: padding-box;
}

.hero-phone--back::before {
  display: none;
}

.hero-phone--front {
  right: 5%;
  bottom: 0;
  width: 52%;
  max-width: 170px;
  transform: rotate(6deg);
  z-index: 1;
  overflow: hidden;
  background-color: #fff;
  background-image: url("static/picture/TbJu9Zmh6FNqRPIj7cLlMQ.png");
  background-position: center;
  background-size: auto 118%;
  background-repeat: no-repeat;
  background-origin: padding-box;
  background-clip: padding-box;
}

.hero-phone--front::before {
  display: none;
}

.carousel-btn {
  position: absolute;
  top: 42%;
  transform: translateY(-50%);
  z-index: 2;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  border: none;
  border-radius: 999px;
  font-size: 1.35rem;
  line-height: 1;
  color: var(--color-ink);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 2px 12px rgba(28, 28, 30, 0.12);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.carousel-btn:hover {
  background: #fff;
  color: var(--color-primary-2);
}

.carousel-btn:focus-visible {
  outline: 2px solid var(--color-primary-2);
  outline-offset: 2px;
}

.carousel-btn--prev {
  left: clamp(0.35rem, 1.5vw, 0.75rem);
}

.carousel-btn--next {
  right: clamp(0.35rem, 1.5vw, 0.75rem);
}

.carousel-dots {
  display: flex;
  gap: 0.45rem;
  justify-content: center;
  padding: 0.75rem 0 1rem;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.carousel-dot {
  width: 0.5rem;
  height: 0.5rem;
  padding: 0;
  border: none;
  border-radius: 999px;
  background: #ddd;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}

.carousel-dot.is-active {
  background: var(--color-primary-2);
  transform: scale(1.2);
}

.carousel-dot:focus-visible {
  outline: 2px solid var(--color-primary-2);
  outline-offset: 2px;
}

@media (max-width: 480px) {
  .hero-slide__actions .btn {
    flex: 1;
    min-width: calc(50% - 0.5rem);
  }
}

@media (max-width: 380px) {
  .hero-slide__actions {
    flex-direction: column;
  }

  .hero-slide__actions .btn {
    width: 100%;
  }
}

/* ========== 通用区块 ========== */
.section {
  padding: clamp(2rem, 5vw, 3.5rem) 0;
}

.section-heading {
  margin: 0 0 0.75rem;
  font-size: clamp(1.2rem, 2.8vw, 1.5rem);
  font-weight: 800;
  color: var(--color-ink);
  line-height: 1.3;
}

.section-heading--center {
  text-align: center;
}

.section-sub {
  margin: 0 auto 2rem;
  max-width: 36rem;
  color: var(--color-muted);
  font-size: 0.98rem;
}

.section-sub.center,
.center {
  text-align: center;
}

.section-lead {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.98rem;
  line-height: 1.75;
}

.section-kicker {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1rem;
}

.section-kicker__icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 1rem 1rem 1rem 0.25rem;
  background: linear-gradient(135deg, #ffb3c6, var(--color-primary-2));
  flex-shrink: 0;
  box-shadow: 0 6px 16px rgba(233, 66, 86, 0.25);
}

.section-kicker .section-heading {
  margin: 0;
}

/* ========== 关于：左右分栏 ========== */
.panel {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  padding: clamp(1.35rem, 4vw, 2.25rem);
}

.panel--split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: start;
}

@media (min-width: 900px) {
  .panel--split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.45fr);
    align-items: center;
  }
}

/* 模块2：关于翻咔（约 65% / 35%，移动端上图下文） */
.panel--about {
  padding: clamp(1.75rem, 5vw, 2.65rem);
  border-radius: 26px;
  box-shadow: 0 12px 40px rgba(24, 24, 27, 0.07);
}

@media (min-width: 900px) {
  .panel--about.panel--split {
    grid-template-columns: minmax(0, 1.86fr) minmax(0, 1fr);
    gap: clamp(1.75rem, 4vw, 3rem);
    align-items: center;
  }
}

@media (max-width: 899px) {
  .panel--about.panel--split {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
  }

  .panel--about .about-visual {
    order: -1;
    width: 100%;
  }
}

.about-kicker {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1.35rem;
}

.about-kicker__bubble {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, #ff8fa3 0%, #ff2d55 52%, #e01948 100%);
  box-shadow: 0 6px 18px rgba(255, 45, 85, 0.32);
}

.about-kicker__bubble-svg {
  display: block;
}

.about-kicker__title {
  margin: 0;
  padding-top: 0.3rem;
  font-size: clamp(1.2rem, 2.6vw, 1.55rem);
  font-weight: 800;
  color: var(--color-ink);
  line-height: 1.35;
  letter-spacing: -0.02em;
}

.panel__main--about .about-copy p {
  margin: 0 0 1.1rem;
  color: var(--color-ink);
  font-size: 1rem;
  line-height: 1.65;
}

.panel__main--about .about-copy p:last-child {
  margin-bottom: 0;
}

.panel__main--about .about-copy h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.1rem, 2.4vw, 1.35rem);
  font-weight: 800;
  color: var(--color-ink);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.card {
  padding: 20px;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

.panel__main--about .about-grid .card h3 {
  margin: 0 0 0.45rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-ink);
}

.panel__main--about .about-grid .card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--color-muted);
}

@media (max-width: 900px) {
  .panel__main--about .about-grid {
    grid-template-columns: 1fr;
  }
}

.about-visual {
  align-self: stretch;
  display: flex;
  min-width: 0;
}

.about-visual__frame {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: clamp(200px, 42vw, 280px);
  padding: clamp(1.25rem, 4vw, 2rem);
  border-radius: 22px;
  background: linear-gradient(180deg, #fff8f9 0%, #ffecf1 55%, #ffe8ee 100%);
  border: 1px solid rgba(255, 45, 85, 0.09);
}

.about-visual__img {
  display: block;
  width: 100%;
  max-width: min(320px, 100%);
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 14px 32px rgba(255, 45, 85, 0.14));
}

.panel__main p {
  margin: 0 0 1rem;
  color: var(--color-muted);
  font-size: 0.98rem;
  line-height: 1.8;
}

.panel__main p:last-child {
  margin-bottom: 0;
}

.panel__aside {
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-mark {
  width: min(100%, 200px);
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 30% 30%, #fff5f7, #ffe0e8 45%, #f3e8ff 100%);
  border-radius: var(--radius-md);
}

.brand-mark__svg {
  width: 55%;
  height: auto;
}

/* ========== 功能条：左右分栏 ========== */
.panel--features {
  align-items: start;
}

@media (min-width: 900px) {
  .panel--features {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  }
}

.feature-stack {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.about-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.4rem;
}

.about-links a {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  background: var(--color-primary-soft);
  color: var(--color-primary-2);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid rgba(233, 66, 86, 0.18);
}

.about-links a:hover {
  background: rgba(255, 77, 106, 0.18);
  color: var(--color-primary-hover);
}

.page-about-showcase {
  background: var(--color-bg);
}

.about-showcase .section {
  padding: clamp(1.6rem, 4vw, 3rem) 0;
}

.about-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(90deg, #ffeef4 0%, #f4ebff 52%, #eaf2ff 100%);
  padding: clamp(2rem, 5vw, 3.5rem) 0;
}

.about-hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 1.25rem;
  align-items: center;
}

.about-hero__copy h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.8rem, 3.8vw, 2.6rem);
  line-height: 1.2;
}

.about-hero__copy p {
  margin: 0 0 1.1rem;
  color: #3f3f46;
  max-width: 36rem;
}

.about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.about-download {
  display: inline-block;
  min-width: 146px;
  padding: 0.7rem 0.95rem;
  border-radius: 999px;
  text-decoration: none;
  line-height: 1.1;
  font-weight: 700;
  text-align: center;
  border: 2px solid transparent;
  transition: filter 0.2s, box-shadow 0.2s, transform 0.15s, border-color 0.2s, color 0.2s, background 0.2s;
}

.about-download--ios {
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-2) 100%);
  box-shadow: 0 4px 16px rgba(233, 66, 86, 0.35);
}

.about-download--ios:hover {
  filter: brightness(1.03);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(233, 66, 86, 0.4);
}

.about-download--android {
  color: var(--color-primary-2);
  background: #fff;
  border-color: var(--color-primary-2);
  box-shadow: 0 2px 10px rgba(233, 66, 86, 0.12);
}

.about-download--android:hover {
  color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(233, 66, 86, 0.18);
}

.about-download span {
  font-size: 0.78rem;
  font-weight: 500;
}

.about-download--ios span {
  color: rgba(255, 255, 255, 0.92);
}

.about-download--android span {
  color: rgba(233, 66, 86, 0.85);
}

.about-hero__visual {
  position: relative;
  min-height: clamp(280px, 36vw, 420px);
}

.about-phone {
  position: absolute;
  border-radius: 1.6rem;
  border: 3px solid #fff;
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.24);
  background-size: auto 118%;
  background-position: center;
}

.about-phone--main {
  width: min(62%, 270px);
  aspect-ratio: 10 / 19;
  right: 18%;
  top: -6%;
  background-image: url("static/picture/9cdb03d5-9146-45b6-9dcb-75b83e4b6e60.png");
}

.about-phone--sub {
  width: min(50%, 215px);
  aspect-ratio: 10 / 19;
  right: 2%;
  top: 14%;
  background-image: url("static/picture/000ac559-f42f-4c33-aa40-d79146c77e49.png");
}

.about-mission__head h2,
.about-feature-panel h2,
.about-stats-panel h2,
.about-join h2 {
  margin: 0 0 0.7rem;
  font-size: clamp(1.35rem, 2.8vw, 1.8rem);
}

.about-mission__row {
  display: grid;
  grid-template-columns: minmax(0, 0.42fr) minmax(0, 0.58fr);
  gap: clamp(1rem, 3vw, 1.75rem);
  align-items: start;
}

.about-mission__head p {
  margin: 0;
  color: var(--color-muted);
  line-height: 1.75;
}

.about-mission__icons {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.about-tag {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.85rem 0.9rem;
  border-radius: 14px;
  background: #fff;
  border: 1px solid #eef0f5;
  text-align: left;
}

.about-tag__icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.about-tag__icon--heart {
  background: #ffe3ea;
}

.about-tag__icon--match {
  background: #ede9fe;
}

.about-tag__icon--chat {
  background: #e7f0ff;
}

.about-tag__icon--shield {
  background: #e6fcf5;
}

.about-tag__body strong {
  display: block;
  margin: 0 0 0.25rem;
  font-size: 0.98rem;
  color: var(--color-ink);
}

.about-tag__body em {
  display: block;
  font-style: normal;
  color: var(--color-muted);
  font-size: 0.86rem;
  line-height: 1.55;
}

.about-feature-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 1rem;
  align-items: stretch;
}

.about-feature-panel,
.about-stats-panel {
  padding: 1rem;
  border-radius: 16px;
  background: #fff;
  border: 1px solid #edf0f4;
  display: flex;
  flex-direction: column;
}

.about-feature-cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
  flex: 1;
}

.about-feature-card {
  padding: 0.75rem;
  border-radius: 12px;
  background: #f8fafc;
}

.about-feature-card h3 {
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
}

.about-feature-card p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--color-muted);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
  flex: 1;
}

.about-stats div {
  padding: 0.85rem;
  border-radius: 12px;
  background: #f8fafc;
}

.about-stats strong {
  display: block;
  font-size: 1.55rem;
  color: #e94256;
}

.about-stats span {
  font-size: 0.86rem;
  color: var(--color-muted);
}

.about-join {
  text-align: center;
}

.about-join p {
  margin: 0 0 0.9rem;
  color: var(--color-muted);
}

.about-hero__actions--center {
  justify-content: center;
}

@media (max-width: 980px) {
  .about-hero__grid,
  .about-feature-grid {
    grid-template-columns: 1fr;
  }

  .about-mission__row {
    grid-template-columns: 1fr;
  }

  .about-feature-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .about-feature-cards,
  .about-stats,
  .about-mission__icons {
    grid-template-columns: 1fr;
  }
}

.feature-pill {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1rem 1.15rem;
  background: var(--color-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.feature-pill__dot {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  flex-shrink: 0;
}

.feature-pill__dot--purple {
  background: linear-gradient(135deg, #d0bfff, #845ef7);
}

.feature-pill__dot--orange {
  background: linear-gradient(135deg, #ffd8a8, #fd7e14);
}

.feature-pill__dot--green {
  background: linear-gradient(135deg, #b2f2bb, #2f9e44);
}

.feature-pill__title {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 1rem;
  color: var(--color-ink);
}

.feature-pill__desc {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-muted);
  line-height: 1.6;
}

/* ========== 模块4：多端入口 + 相关内容 ========== */
.terminals-head {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(0.65rem, 2.5vw, 1.35rem);
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
  flex-wrap: wrap;
}

.terminals-head__dash {
  width: clamp(2rem, 6vw, 3rem);
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, rgba(255, 45, 85, 0.35), #ff2d55);
  flex-shrink: 0;
}

.terminals-head__dash--mirror {
  transform: scaleX(-1);
}

.terminals-head__title {
  margin: 0;
  font-size: clamp(1.1rem, 2.6vw, 1.45rem);
  font-weight: 800;
  color: var(--color-ink);
  text-align: center;
  letter-spacing: -0.02em;
}

.dual-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .dual-cards {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }
}

.terminal-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  padding: clamp(1.35rem, 3.5vw, 2rem);
  overflow: hidden;
}

.terminal-card--app {
  background: linear-gradient(145deg, #fff 0%, #fff9fb 55%, #fff5f7 100%);
  border-color: rgba(255, 45, 85, 0.1);
}

.terminal-card--web {
  background: linear-gradient(145deg, #fff 0%, #f8faff 50%, #f0f5ff 100%);
  border-color: rgba(66, 99, 235, 0.12);
}

.terminal-card__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  align-items: center;
}

@media (min-width: 640px) {
  .terminal-card__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(140px, 46%);
    gap: clamp(1rem, 3vw, 1.75rem);
  }
}

.terminal-card__copy {
  min-width: 0;
}

.terminal-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  margin-bottom: 0.85rem;
}

.terminal-card__icon--app {
  background: linear-gradient(145deg, #ff8fa3 0%, #ff2d55 55%, #e01948 100%);
  box-shadow: 0 8px 20px rgba(255, 45, 85, 0.35);
}

.terminal-card__icon--web {
  background: linear-gradient(145deg, #9db4ff 0%, #4263eb 55%, #364fc7 100%);
  box-shadow: 0 8px 20px rgba(66, 99, 235, 0.32);
}

.terminal-card__title {
  margin: 0 0 0.45rem;
  font-size: clamp(1.05rem, 2.2vw, 1.2rem);
  font-weight: 800;
  color: var(--color-ink);
}

.terminal-card__lead {
  margin: 0 0 0.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-ink);
  line-height: 1.45;
}

.terminal-card__muted {
  margin: 0 0 1rem;
  font-size: 0.88rem;
  color: var(--color-muted);
  line-height: 1.55;
}

.terminal-card__copy .btn--block {
  margin-top: 0.15rem;
}

.terminal-card__copy .btn--blue.btn--icon {
  flex-direction: row;
  gap: 0.5rem;
}

.terminal-card__mock {
  border-radius: var(--radius-md);
  min-height: clamp(168px, 28vw, 220px);
  position: relative;
}

.terminal-card__mock--phone {
  background: linear-gradient(165deg, #fff 0%, #ffe8ec 42%, #e8eefc 100%);
}

.terminal-card__mock--phone::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 10%;
  transform: translateX(-50%);
  width: min(42%, 150px);
  aspect-ratio: 10 / 19;
  border-radius: 0.85rem;
  border: 3px solid #fff;
  overflow: hidden;
  background-color: #fff;
  background-image: url("static/picture/R4_sR0r2zuBqRPIj7cLlMQ.png");
  background-position: center;
  background-size: auto 118%;
  background-repeat: no-repeat;
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.12);
}

.terminal-card__mock--laptop {
  background: linear-gradient(180deg, #f1f5ff 0%, #e3e9ff 100%);
}

.terminal-card__mock--laptop::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 16%;
  transform: translateX(-50%);
  width: min(78%, 220px);
  height: 46%;
  border-radius: 0.35rem;
  overflow: hidden;
  border: 2px solid rgba(0, 0, 0, 0.06);
  background-color: #fff;
  background-image: url("static/picture/image_4k.png");
  background-position: center;
  background-size: 118% auto;
  background-repeat: no-repeat;
  box-shadow: 0 12px 32px rgba(66, 99, 235, 0.14);
}

.terminal-card__mock--laptop::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 8%;
  transform: translateX(-50%);
  width: min(88%, 240px);
  height: 7px;
  background: linear-gradient(90deg, #dee2e6, #ced4da);
  border-radius: 3px;
}

/* 相关内容：白底大卡片 */
.related-panel {
  background: var(--color-surface);
  border-radius: 26px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  padding: clamp(1.75rem, 4vw, 2.65rem);
}

.related-panel__title {
  margin: 0 0 clamp(1.1rem, 2.5vw, 1.5rem);
  font-size: clamp(1.1rem, 2.4vw, 1.35rem);
  font-weight: 800;
  color: var(--color-ink);
  text-align: left;
  letter-spacing: -0.02em;
}

.related-grid {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(0.75rem, 2vw, 1.15rem);
  justify-content: space-between;
}

.related-card {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 0.85rem;
  flex: 1 1 calc(50% - 0.5rem);
  min-width: min(100%, 220px);
  max-width: 100%;
  padding: 1.15rem 1.1rem;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: 0 4px 18px rgba(24, 24, 27, 0.04);
  text-decoration: none;
  color: inherit;
  text-align: left;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

@media (min-width: 960px) {
  .related-card {
    flex: 1 1 0;
    min-width: 0;
  }
}

@media (min-width: 560px) and (max-width: 959px) {
  .related-card {
    flex: 1 1 calc(50% - 0.5rem);
    max-width: calc(50% - 0.5rem);
  }
}

@media (max-width: 559px) {
  .related-card {
    flex: 1 1 100%;
    max-width: 100%;
  }
}

.related-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 36px rgba(24, 24, 27, 0.09);
  color: inherit;
  border-color: rgba(0, 0, 0, 0.06);
}

.related-card__text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  flex: 1;
  min-width: 0;
  gap: 0.2rem;
}

.related-card__ico {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.related-card--pink .related-card__ico {
  background: linear-gradient(135deg, #ff8fa3, #ff2d55);
  box-shadow: 0 6px 16px rgba(255, 45, 85, 0.28);
}

.related-card--purple .related-card__ico {
  background: linear-gradient(135deg, #d0bfff, #845ef7);
  box-shadow: 0 6px 16px rgba(132, 94, 247, 0.28);
}

.related-card--orange .related-card__ico {
  background: linear-gradient(135deg, #ffd8a8, #fd7e14);
  box-shadow: 0 6px 16px rgba(253, 126, 20, 0.28);
}

.related-card--green .related-card__ico {
  background: linear-gradient(135deg, #b2f2bb, #2f9e44);
  box-shadow: 0 6px 16px rgba(47, 158, 68, 0.28);
}

.related-card__title {
  margin: 0;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1.35;
}

.related-card__desc {
  margin: 0;
  font-size: 0.82rem;
  color: var(--color-muted-2);
  line-height: 1.5;
}

.related-card__link {
  display: inline-block;
  margin-top: 0.35rem;
  font-size: 0.84rem;
  font-weight: 600;
}

.related-card--pink .related-card__link {
  color: #ff2d55;
}

.related-card--purple .related-card__link {
  color: #845ef7;
}

.related-card--orange .related-card__link {
  color: #fd7e14;
}

.related-card--green .related-card__link {
  color: #2f9e44;
}

.related-card--pink:hover .related-card__link {
  color: #e01948;
}

.related-card--purple:hover .related-card__link {
  color: #6741d9;
}

.related-card--orange:hover .related-card__link {
  color: #e8590c;
}

.related-card--green:hover .related-card__link {
  color: #258b37;
}

/* ========== 页脚：多栏 + 底栏 ========== */
.site-footer {
  background: var(--color-footer);
  color: var(--color-footer-muted);
  padding: clamp(2.5rem, 5vw, 3.5rem) 0 0;
  margin-top: 0.5rem;
  font-size: 0.875rem;
  line-height: 1.65;
}

.site-footer__main {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4vw, 2.5rem);
  padding-bottom: clamp(2rem, 4vw, 2.75rem);
}

@media (min-width: 900px) {
  .site-footer__main {
    grid-template-columns: minmax(0, 1.35fr) repeat(3, minmax(0, 0.85fr)) minmax(0, 1.1fr);
    gap: clamp(1.25rem, 3vw, 2rem);
    align-items: start;
  }
}

.site-footer__brand-row {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  margin-bottom: 0.85rem;
}

.site-footer__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(145deg, #ff8fa3, #ff2d55);
  flex-shrink: 0;
}

.site-footer__logo-glyph {
  color: #fff;
  font-weight: 900;
  font-size: 1.05rem;
  line-height: 1;
  text-transform: lowercase;
  letter-spacing: -0.05em;
}

.site-footer__brand-name {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
}

.site-footer__brand-en {
  font-weight: 600;
  color: #c4c4cc;
}

.site-footer__brand-tag {
  margin: 0.15rem 0 0;
  font-size: 0.8rem;
  color: var(--color-footer-muted);
}

.site-footer__brand-desc {
  margin: 0 0 0.5rem;
  font-size: 0.8rem;
  color: var(--color-footer-muted);
  line-height: 1.6;
  max-width: 22rem;
}

.site-footer__social {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.site-footer__social-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: #c4c4cc;
  font-size: 0.72rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: background 0.2s, color 0.2s;
}

.site-footer__social-btn:hover {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}

.site-footer__nav-title {
  margin: 0 0 0.85rem;
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
}

.site-footer__links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer__links li {
  margin-bottom: 0.45rem;
}

.site-footer__links a {
  color: var(--color-footer-muted);
  font-size: 0.8rem;
  text-decoration: none;
  transition: color 0.2s;
}

.site-footer__links a:hover {
  color: #fff;
}

.site-footer__download-col .site-footer__qrs {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-footer__qr-item {
  text-align: center;
}

.site-footer__qr-box {
  width: 88px;
  height: 88px;
  margin: 0 auto 0.4rem;
  border-radius: 8px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
  background: linear-gradient(135deg, #ffffff 0%, #f1f3f5 45%, #e9ecef 100%);
}

.site-footer__qr-label {
  margin: 0;
  font-size: 0.72rem;
  color: #c4c4cc;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
}

.site-footer__qr-icon {
  font-size: 0.65rem;
  opacity: 0.85;
}

.site-footer__bar {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  padding: 1.25rem 0 1.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
}

@media (min-width: 768px) {
  .site-footer__bar {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
  }
}

.site-footer__bar-left {
  flex: 0 1 auto;
  min-width: 0;
  text-align: center;
}

.site-footer__bar-copy {
  margin: 0 0 0.35rem;
  font-size: 0.78rem;
  color: var(--color-footer-muted);
}

.site-footer__bar-icp {
  margin: 0;
  font-size: 0.74rem;
  color: var(--color-footer-dim);
}

.site-footer__bar-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.site-footer__license {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.65rem;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  max-width: 220px;
}

.site-footer__license-ico {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  flex-shrink: 0;
  background: linear-gradient(145deg, #3d5a80, #293241);
  border: 1px solid rgba(255, 255, 255, 0.12);
  position: relative;
}

.site-footer__license-ico::after {
  content: "";
  position: absolute;
  inset: 22% 28%;
  border: 2px solid rgba(255, 255, 255, 0.85);
  border-radius: 3px;
}

.site-footer__license-ico--check {
  background: linear-gradient(145deg, #2b8a3e, #1c6c2d);
}

.site-footer__license-ico--check::after {
  content: "✓";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 800;
  color: #fff;
  border: none;
  border-radius: 0;
}

.site-footer__license-title {
  margin: 0 0 0.15rem;
  font-size: 0.72rem;
  font-weight: 700;
  color: #e8e8ed;
  line-height: 1.3;
}

.site-footer__license-no {
  margin: 0;
  font-size: 0.65rem;
  color: var(--color-footer-muted);
  line-height: 1.35;
}

.site-footer a {
  color: #b8c8ff;
}

/* ========== 产品介绍页（intro.html） ========== */
.page-intro {
  background: #f8f8f8;
}

.intro-page {
  padding: clamp(1.25rem, 3vw, 2rem) 0 clamp(2.5rem, 5vw, 3.5rem);
}

.intro-page__inner {
  display: flex;
  flex-direction: column;
  gap: clamp(1rem, 2.5vw, 1.35rem);
}

.intro-first {
  display: flex;
  flex-direction: column;
  gap: clamp(0.85rem, 2.2vw, 1.25rem);
}

.intro-first__head h1 {
  margin: 0 0 0.65rem;
  font-size: clamp(1.65rem, 3.6vw, 2.35rem);
  font-weight: 800;
  color: var(--color-ink);
  letter-spacing: -0.02em;
}

.intro-first__head p {
  margin: 0;
  max-width: 52rem;
  color: var(--color-muted);
  line-height: 1.75;
  font-size: 1rem;
}

.intro-card {
  background: var(--color-surface);
  border-radius: 20px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  padding: clamp(1.25rem, 3.2vw, 2rem);
}

.intro-card--xl {
  border-radius: clamp(22px, 3vw, 30px);
  padding: clamp(1.5rem, 3.8vw, 2.5rem);
  box-shadow: 0 14px 46px rgba(24, 24, 27, 0.08);
}

.intro-card h2 {
  margin: 0 0 0.65rem;
  font-size: clamp(1.15rem, 2.6vw, 1.45rem);
  font-weight: 800;
  color: var(--color-ink);
}

.intro-card--what h2 {
  line-height: 1.28;
}

.intro-what-sub {
  margin: 0 0 0.65rem;
  font-size: clamp(1.02rem, 2.15vw, 1.16rem);
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: -0.012em;
}

.intro-what-cards {
  display: flex;
  flex-direction: column;
  gap: 0.72rem;
}

.intro-what-card {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  padding: 0.78rem 0.92rem;
  border-radius: 14px;
  background: #f4f5f8;
  border: 1px solid #e8eaef;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.8) inset;
}

.intro-what-card .intro-tick {
  margin-top: 0.1em;
  box-shadow: 0 5px 12px rgba(255, 45, 85, 0.18);
}

.intro-what-card__body {
  min-width: 0;
}

.intro-what-card__body strong {
  display: block;
  margin: 0 0 0.28rem;
  font-size: 0.97rem;
  font-weight: 700;
  color: var(--color-ink);
}

.intro-what-card__body p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--color-muted);
  line-height: 1.68;
}

.intro-card--what .intro-lead {
  margin-bottom: 1.05rem;
}

.intro-lead {
  margin: 0 0 1rem;
  color: var(--color-muted);
  line-height: 1.75;
}

.intro-lead--tight {
  margin-bottom: 0.85rem;
}

.intro-split {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(1rem, 3vw, 1.75rem);
  align-items: center;
}

.intro-split--reverse .intro-split__media {
  order: 1;
}

.intro-split--reverse .intro-split__copy {
  order: 2;
}

.intro-split__copy {
  min-width: 0;
}

.intro-checklist {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.intro-checklist li {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  color: var(--color-ink);
  line-height: 1.65;
}

.intro-checklist li::before {
  content: "✓";
  flex-shrink: 0;
  margin-top: 0.12em;
  width: 1.55rem;
  height: 1.55rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(145deg, #ff8fa3 0%, #ff2d55 52%, #e01948 100%);
  box-shadow: 0 6px 16px rgba(255, 45, 85, 0.22);
}

.intro-split__media {
  min-width: 0;
}

.intro-split__media--app {
  display: flex;
  justify-content: center;
}

.intro-app-frame {
  width: min(100%, 380px);
  border-radius: clamp(18px, 2.6vw, 22px);
  padding: clamp(0.85rem, 2.2vw, 1.15rem);
  background: linear-gradient(180deg, #fff2f6 0%, #ffe3ec 55%, #ffd6e6 100%);
  border: 1px solid rgba(255, 77, 106, 0.12);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.65);
}

.intro-app-frame--process-mock {
  width: min(100%, 480px);
  padding: clamp(0.85rem, 2.2vw, 1.2rem);
  border-radius: clamp(18px, 2.6vw, 26px);
}

.intro-split__media--flow {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
}

.intro-flow-seo-alt {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  border: 0;
  white-space: nowrap;
}

.intro-card--process .intro-lead {
  margin-bottom: clamp(1rem, 2.5vw, 1.35rem);
}

.intro-card--process .intro-step__no {
  width: 2.31rem;
  height: 2.31rem;
  font-size: 0.98rem;
  background: #ff4d79;
  box-shadow: 0 8px 20px rgba(255, 77, 121, 0.35), 0 2px 6px rgba(255, 45, 85, 0.18);
}

.intro-steps--process {
  gap: clamp(1.2rem, 2.8vw, 1.75rem);
}

.intro-card--process .intro-step-body strong {
  display: block;
  margin: 0 0 0.4rem;
  font-weight: 800;
  font-size: 1rem;
  color: var(--color-ink);
  letter-spacing: -0.01em;
}

.intro-card--process .intro-step-body p {
  margin: 0;
  color: var(--color-muted);
  line-height: 1.72;
  font-size: 0.96rem;
}

.intro-card--process .intro-step-body p + p {
  margin-top: 0.55em;
}

.intro-flow-mock {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  grid-template-rows: 1fr 1fr;
  gap: clamp(11px, 1.7vw, 18px);
  align-items: stretch;
  min-height: clamp(210px, 30vw, 290px);
}

.intro-flow-card {
  background: #fff;
  border-radius: clamp(14px, 2vw, 20px);
  box-shadow: 0 3px 14px rgba(24, 24, 27, 0.055);
  border: 1px solid rgba(15, 23, 42, 0.05);
  padding: clamp(0.5rem, 1.4vw, 0.72rem) clamp(0.55rem, 1.5vw, 0.8rem);
  display: flex;
  flex-direction: column;
  gap: 0.38rem;
  min-width: 0;
}

.intro-flow-card--stack-a {
  grid-column: 1;
  grid-row: 1;
}

.intro-flow-card--stack-b {
  grid-column: 1;
  grid-row: 2;
}

.intro-flow-card--feature {
  grid-column: 2;
  grid-row: 1 / -1;
  min-height: 0;
}

.intro-flow-card__head {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.intro-flow-card__status-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: #52d88a;
  flex-shrink: 0;
}

.intro-flow-card__status-dot--alt {
  background: #ff8fab;
}

.intro-flow-card__status-text {
  height: 5px;
  width: 38%;
  max-width: 52px;
  border-radius: 2px;
  background: #e8eaef;
}

.intro-flow-card__status-text--short {
  width: 28%;
  max-width: 36px;
}

.intro-flow-card__profile {
  display: flex;
  align-items: center;
  gap: 0.42rem;
}

.intro-flow-card__avatar {
  width: clamp(28px, 6.5vw, 36px);
  height: clamp(28px, 6.5vw, 36px);
  border-radius: 999px;
  flex-shrink: 0;
  background: linear-gradient(145deg, #e0e7ff 0%, #fce7f3 100%);
}

.intro-flow-card__avatar--alt {
  background: linear-gradient(145deg, #cffafe 0%, #fef3c7 100%);
}

.intro-flow-card__avatar--xs {
  width: 22px;
  height: 22px;
  background: linear-gradient(145deg, #fde2e8, #ffc9d6);
}

.intro-flow-card__profile-meta {
  flex: 1;
  min-width: 0;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  gap: 0.2rem 0.4rem;
  align-items: center;
}

.intro-flow-card__title-line {
  grid-column: 1;
  grid-row: 1;
  height: 6px;
  width: 58%;
  max-width: 72px;
  border-radius: 3px;
  background: #27272a;
  opacity: 0.88;
}

.intro-flow-card__title-line--short {
  width: 42%;
  max-width: 52px;
}

.intro-flow-card__sub-line {
  grid-column: 1;
  grid-row: 2;
  height: 4px;
  width: 78%;
  max-width: 90px;
  border-radius: 2px;
  background: #cbd5e1;
}

.intro-flow-card__star {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  color: #ff4d79;
  font-size: 0.72rem;
  line-height: 1;
}

.intro-flow-card__placeholder {
  display: flex;
  flex-direction: column;
  gap: 0.26rem;
  padding-top: 0.08rem;
}

.intro-flow-card__placeholder span {
  height: 3px;
  border-radius: 2px;
  background: #e2e8f0;
}

.intro-flow-card__placeholder span:nth-child(1) {
  width: 100%;
}

.intro-flow-card__placeholder span:nth-child(2) {
  width: 86%;
}

.intro-flow-card__placeholder span:nth-child(3) {
  width: 68%;
}

.intro-flow-card__foot {
  display: flex;
  align-items: center;
  gap: 0.32rem;
  margin-top: auto;
  padding-top: 0.12rem;
}

.intro-flow-card__foot-icon {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  flex-shrink: 0;
  background: linear-gradient(135deg, #93c5fd, #3b82f6);
}

.intro-flow-card__foot-line {
  height: 4px;
  width: 72%;
  max-width: 76px;
  border-radius: 2px;
  background: #e8eaef;
}

.intro-flow-card__foot-line--short {
  max-width: 54px;
  width: 58%;
}

.intro-flow-card__feature-top {
  display: flex;
  align-items: center;
  gap: 0.38rem;
}

.intro-flow-card__user-pill {
  height: 7px;
  width: 46%;
  max-width: 76px;
  border-radius: 3px;
  background: #e8eaef;
}

.intro-flow-card__feature-hero {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: clamp(96px, 20vw, 150px);
  padding: 0.35rem 0;
}

.intro-flow-card__brand-square {
  width: clamp(70px, 20vw, 102px);
  aspect-ratio: 1;
  border-radius: clamp(14px, 2vw, 20px);
  background: linear-gradient(145deg, #ff8fa3 0%, #ff2d55 52%, #e01948 100%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 22px rgba(255, 45, 85, 0.22);
}

.intro-flow-card__brand-square svg {
  width: 54%;
  height: 54%;
}

.intro-flow-card__feature-bars {
  display: flex;
  flex-direction: column;
  gap: 0.32rem;
}

.intro-flow-card__hbar {
  height: 6px;
  border-radius: 3px;
  display: block;
}

.intro-flow-card__hbar--pink {
  width: 40%;
  max-width: 68px;
  background: #ffc2d4;
}

.intro-flow-card__hbar--grey {
  width: 56%;
  max-width: 92px;
  background: #e8eaef;
}

.intro-app-shot {
  width: 100%;
  aspect-ratio: 10 / 16;
  border-radius: 18px;
  border: 3px solid #fff;
  box-shadow: 0 16px 40px rgba(24, 24, 27, 0.12);
  background: url("static/picture/9cdb03d5-9146-45b6-9dcb-75b83e4b6e60.png") center / cover no-repeat;
}

.intro-phones {
  position: relative;
  min-height: clamp(240px, 34vw, 320px);
}

.intro-phone {
  position: absolute;
  border-radius: 1.5rem;
  border: 3px solid #fff;
  box-shadow: 0 16px 38px rgba(15, 23, 42, 0.18);
  background-size: cover;
  background-position: center;
}

.intro-phone--back {
  width: min(46%, 190px);
  aspect-ratio: 10 / 19;
  left: 6%;
  top: 10%;
  background-image: url("static/picture/xUNCxc8cAv9qRPIj7cLlMQ.png");
  transform: rotate(-8deg);
}

.intro-phone--front {
  width: min(54%, 220px);
  aspect-ratio: 10 / 19;
  right: 6%;
  bottom: 0;
  background-image: url("static/picture/000ac559-f42f-4c33-aa40-d79146c77e49.png");
  transform: rotate(6deg);
}

.intro-media-caption {
  margin: 0.65rem 0 0;
  text-align: center;
  color: var(--color-muted-2);
  font-size: 0.9rem;
}

.intro-media-caption.intro-media-caption--process {
  margin: 0;
  color: var(--color-ink);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.intro-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.intro-steps li {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

.intro-step__no {
  flex-shrink: 0;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(145deg, #ff8fa3 0%, #ff2d55 52%, #e01948 100%);
  box-shadow: 0 6px 16px rgba(255, 45, 85, 0.22);
}

.intro-steps strong {
  display: block;
  margin: 0 0 0.25rem;
  color: var(--color-ink);
}

.intro-steps p {
  margin: 0;
  color: var(--color-muted);
  line-height: 1.65;
  font-size: 0.95rem;
}

.intro-feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.intro-feature {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  padding: 0.85rem 0.9rem;
  border-radius: 14px;
  background: #f8fafc;
  border: 1px solid #edf0f4;
}

.intro-feature--inline {
  padding: 0.75rem 0.85rem;
}

.intro-tick {
  flex-shrink: 0;
  width: 1.55rem;
  height: 1.55rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 900;
  color: #fff;
  background: linear-gradient(145deg, #ff8fa3 0%, #ff2d55 52%, #e01948 100%);
}

.intro-tick--lg {
  width: 2.35rem;
  height: 2.35rem;
  font-size: 1.05rem;
}

.intro-feature strong {
  display: block;
  margin: 0 0 0.25rem;
  color: var(--color-ink);
}

.intro-feature p {
  margin: 0;
  color: var(--color-muted);
  line-height: 1.6;
  font-size: 0.92rem;
}

.intro-trust {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(1rem, 3vw, 1.5rem);
  align-items: start;
}

.intro-trust--unified {
  grid-template-columns: 1fr;
  gap: 0.95rem;
}

.intro-trust__copy--full .intro-lead {
  margin-bottom: 0;
}

.intro-trust-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.intro-trust-item {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  min-height: 100%;
  padding: 0.95rem 1rem;
  border-radius: 14px;
  background: #f8fafc;
  border: 1px solid #edf0f4;
}

.intro-trust-item strong {
  display: block;
  margin: 0 0 0.25rem;
  color: var(--color-ink);
}

.intro-trust-item p {
  margin: 0;
  color: var(--color-muted);
  line-height: 1.6;
  font-size: 0.92rem;
}

.intro-trust__mini {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 0.35rem;
}

.intro-trust__panels {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.intro-trust-panel {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.95rem 1rem;
  border-radius: 14px;
  background: #f8fafc;
  border: 1px solid #edf0f4;
}

.intro-card--cta .intro-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

/* ========== 网络表演页（perform.html） ========== */
.page-perform {
  background: #f8f8f8;
}

.perform-page {
  padding: clamp(1.25rem, 3vw, 2rem) 0 clamp(2.5rem, 5vw, 3.5rem);
}

.perform-page__inner {
  display: flex;
  flex-direction: column;
  gap: clamp(1.05rem, 2.6vw, 1.55rem);
}

.perform-hero h1 {
  margin: 0;
  font-size: clamp(1.65rem, 3.6vw, 2.35rem);
  font-weight: 800;
  color: var(--color-ink);
  letter-spacing: -0.02em;
  text-align: center;
}

.perform-hero__line {
  width: min(180px, 44vw);
  height: 3px;
  border-radius: 999px;
  margin: 0.75rem auto 0.95rem;
  background: linear-gradient(90deg, rgba(233, 66, 86, 0) 0%, #f14667 48%, rgba(233, 66, 86, 0) 100%);
}

.perform-hero p {
  margin: 0 auto;
  max-width: 52rem;
  color: var(--color-muted);
  line-height: 1.75;
  font-size: 1rem;
  text-align: center;
}

.perform-module {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  gap: clamp(1rem, 3vw, 1.75rem);
  align-items: center;
  background: var(--color-surface);
  border-radius: clamp(24px, 3.2vw, 34px);
  border: 1px solid #e9eef9;
  box-shadow: 0 10px 34px rgba(24, 24, 27, 0.05);
  padding: clamp(1.45rem, 3.8vw, 2.35rem);
}

.perform-module--blue {
  background: linear-gradient(180deg, #ffffff 0%, #f7faff 100%);
  border-color: #e7eeff;
}

.perform-module--pink {
  background: linear-gradient(180deg, #ffffff 0%, #fff7fa 100%);
  border-color: #f7e9ef;
}

.perform-module__copy h2 {
  margin: 0 0 0.6rem;
  font-size: clamp(1.28rem, 2.75vw, 1.8rem);
  line-height: 1.34;
  font-weight: 800;
  color: var(--color-ink);
}

.perform-module__divider {
  width: 100%;
  max-width: 28rem;
  height: 1px;
  margin: 0 0 0.9rem;
  background: linear-gradient(90deg, #e9edf5 0%, #f1f4f9 100%);
}

.perform-module__copy p {
  margin: 0;
  color: var(--color-muted);
  line-height: 1.74;
  font-size: 1.02rem;
}

.perform-module__copy p + p {
  margin-top: 0.58rem;
}

.perform-module__media {
  display: flex;
  justify-content: center;
  align-items: center;
  min-width: 0;
  border-radius: 20px;
  padding: clamp(0.8rem, 2vw, 1.15rem);
}

.perform-module--blue .perform-module__media {
  background: #eff4ff;
  box-shadow: inset 0 0 0 1px #e2ebff;
}

.perform-module--pink .perform-module__media {
  background: #ffeef5;
  box-shadow: inset 0 0 0 1px #fce3ec;
}

.perform-module__media img {
  width: min(100%, 340px);
  height: auto;
  display: block;
  border-radius: 18px;
  border: 3px solid #fff;
  box-shadow: 0 16px 40px rgba(24, 24, 27, 0.12);
  background: linear-gradient(180deg, #fff2f6 0%, #ffe3ec 55%, #ffd6e6 100%);
}

.perform-module--review {
  grid-template-columns: minmax(0, 1.03fr) minmax(0, 0.97fr);
}

.perform-module--review .perform-module__copy {
  padding-left: clamp(0.45rem, 1.1vw, 0.75rem);
}

.perform-module__image--review {
  width: min(100%, 470px);
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 16px;
}

.perform-module--anchor {
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
}

.perform-module--anchor .perform-module__copy {
  padding-left: clamp(0.45rem, 1.1vw, 0.75rem);
}

.perform-module--anchor .perform-module__divider {
  margin-bottom: 0.88rem;
}

.perform-module__image--anchor {
  width: min(100%, 430px);
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center 46%;
  border-radius: 16px;
}

.perform-module--flow {
  grid-template-columns: 1fr;
  gap: 0;
  background: #fff;
}

.perform-flow > h2 {
  margin: 0 0 0.55rem;
  font-size: clamp(1.15rem, 2.6vw, 1.42rem);
  line-height: 1.34;
  font-weight: 800;
  color: var(--color-ink);
}

.perform-flow > p {
  margin: 0;
  color: var(--color-muted);
  line-height: 1.72;
}

.perform-steps {
  margin: 0.72rem 0 0;
  padding: 0;
  list-style: none;
}

.perform-steps--cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.9rem;
}

.perform-steps--cards li {
  position: relative;
  border: 1px solid #eef0f4;
  background: #fff;
  border-radius: 16px;
  min-height: 7.85rem;
  padding: 0.95rem 1rem 0.85rem;
  line-height: 1.6;
  color: var(--color-muted);
  box-shadow: 0 6px 18px rgba(31, 45, 71, 0.04);
}

.perform-steps--cards li:not(:last-child)::after {
  content: "›";
  position: absolute;
  right: -0.72rem;
  top: 50%;
  transform: translateY(-50%);
  color: #dce5fa;
  font-size: 1.75rem;
  font-weight: 300;
}

.perform-steps--cards li strong {
  color: var(--color-ink);
  display: block;
  font-size: 1.45rem;
  line-height: 1.15;
  margin-bottom: 0.35rem;
}

.perform-steps--cards li span {
  display: block;
  font-size: 1.02rem;
  line-height: 1.35;
}

.perform-flow-panel {
  margin-top: 0.75rem;
  border: 1px solid #eef1f8;
  border-radius: 18px;
  background: #fff;
  padding: 0.25rem;
}

.perform-flow-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
}

.perform-flow-item {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  padding: 0.98rem 1rem;
  background: #fff;
}

.perform-flow-item:nth-child(odd) {
  border-right: 1px solid #eef1f8;
}

.perform-flow-item:nth-child(-n + 2) {
  border-bottom: 1px solid #eef1f8;
}

.perform-flow-item__icon {
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-weight: 800;
  color: #fff;
  box-shadow: 0 10px 18px rgba(77, 121, 255, 0.16);
}

.perform-flow-item__icon--warn {
  background: linear-gradient(145deg, #ffd67a 0%, #ffb443 100%);
}

.perform-flow-item__icon--review {
  background: linear-gradient(145deg, #ff87ad 0%, #ff5f8e 100%);
}

.perform-flow-item__icon--tier {
  background: linear-gradient(145deg, #9dc2ff 0%, #73a3ff 100%);
}

.perform-flow-item__icon--result {
  background: linear-gradient(145deg, #ffb2cf 0%, #ff8fba 100%);
}

.perform-flow-item strong {
  display: block;
  margin: 0 0 0.18rem;
  color: var(--color-ink);
  font-size: 1.58rem;
  line-height: 1.15;
}

.perform-flow-item p {
  margin: 0;
  color: var(--color-muted);
  line-height: 1.4;
  font-size: 1rem;
}

@media (max-width: 960px) {
  .perform-module {
    grid-template-columns: 1fr;
  }

  .perform-steps--cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .perform-steps--cards li:not(:last-child)::after {
    display: none;
  }

  .perform-flow-grid {
    grid-template-columns: 1fr;
  }

  .perform-flow-item:nth-child(odd) {
    border-right: none;
  }

  .perform-flow-item:not(:last-child) {
    border-bottom: 1px solid #eef1f8;
  }

  .intro-trust-grid {
    grid-template-columns: 1fr;
  }

  .intro-split,
  .intro-split--reverse,
  .intro-trust {
    grid-template-columns: 1fr;
  }

  .intro-split--reverse .intro-split__media,
  .intro-split--reverse .intro-split__copy {
    order: unset;
  }

  .intro-feature-grid {
    grid-template-columns: 1fr;
  }
}

/* ========== 自动更新文章预留区（SEO） ========== */
.auto-article-slot {
  margin-top: clamp(1.1rem, 2.8vw, 1.8rem);
}

.auto-article-slot .container {
  background: #fff;
  border: 1px solid #edf0f4;
  border-radius: 16px;
  padding: clamp(1rem, 2.5vw, 1.4rem);
}

.auto-article-slot h2 {
  margin: 0 0 0.55rem;
  font-size: clamp(1.1rem, 2.4vw, 1.35rem);
}

.auto-article-slot p {
  margin: 0;
  color: var(--color-muted);
  line-height: 1.7;
}