:root {
  --bg: #fdfcfa;
  --bg-2: #f8fafc;
  --bg-alt: #f4f7f8;
  --surface: #ffffff;
  --surface-2: #f1f5f9;
  --surface-warm: #fff5f5;
  --text: #292524;
  --muted: #6b6560;
  --accent: #d92d4a;
  --accent-2: #f47298;
  --accent-dark: #b91c3c;
  --accent-soft: rgba(217, 45, 74, 0.09);
  --accent-border: rgba(217, 45, 74, 0.2);
  --cool: #0d9488;
  --cool-soft: rgba(13, 148, 136, 0.1);
  --border: rgba(41, 37, 36, 0.09);
  --shadow: 0 16px 44px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 24px 60px rgba(15, 23, 42, 0.09);
  --radius: 14px;
  --radius-lg: 22px;
  --max: 1120px;
  --header-h: 64px;
  --font: "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: linear-gradient(180deg, #ffffff 0%, var(--bg) 32%, var(--bg-2) 100%);
  min-height: 100vh;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(100% - 32px, var(--max));
  margin-inline: auto;
}

.narrow {
  max-width: 720px;
}

.inline-code {
  font-family: ui-monospace, "Cascadia Code", monospace;
  font-size: 0.85em;
  padding: 2px 8px;
  border-radius: 8px;
  background: var(--surface-2);
  border: 1px solid var(--accent-border);
  color: var(--accent-dark);
}

.accent-inline {
  color: var(--accent);
  font-weight: 700;
}

/* —— 顶部导航 —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  background: rgba(255, 253, 251, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.8) inset;
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  position: relative;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text);
}

.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), #fb7185);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 18px;
  font-weight: 800;
  box-shadow: 0 8px 24px rgba(225, 29, 72, 0.35);
}

.logo-text {
  font-size: 1.08rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin-inline: auto;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 14px;
  font-size: 0.9rem;
  color: var(--muted);
}

.nav-download {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 4px 0 10px;
  margin: 0 0 4px;
  width: 100%;
  border-bottom: 1px solid var(--border);
}

.nav-download-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
}

@media (min-width: 769px) {
  .nav-download {
    width: auto;
    padding: 0 14px 0 0;
    margin: 0 10px 0 0;
    border-bottom: 0;
    border-right: 1px solid var(--border);
  }

  .nav-download-label {
    max-width: 10.5em;
    line-height: 1.35;
  }
}

.site-nav a {
  padding: 8px 10px;
  border-radius: 999px;
  transition: color 0.2s, background 0.2s, box-shadow 0.2s;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--accent-dark);
  background: var(--accent-soft);
  outline: none;
  box-shadow: 0 0 0 1px var(--accent-border);
}

/* —— Hero —— */
.hero {
  position: relative;
  padding: clamp(20px, 4vw, 36px) 0 clamp(56px, 8vw, 88px);
  overflow: clip;
}

.hero-parallax {
  position: absolute;
  inset: -12% -5% auto -5%;
  height: 120%;
  pointer-events: none;
  z-index: 0;
  will-change: transform;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.55;
}

.blob-a {
  width: min(420px, 55vw);
  height: min(420px, 55vw);
  background: #fecdd3;
  top: -5%;
  left: -8%;
  animation: blob-drift 14s ease-in-out infinite;
}

.blob-b {
  width: min(360px, 48vw);
  height: min(360px, 48vw);
  background: linear-gradient(135deg, #ffe4e6 0%, #ccfbf1 100%);
  top: 10%;
  right: -10%;
  animation: blob-drift 18s ease-in-out infinite reverse;
}

.blob-c {
  width: min(280px, 40vw);
  height: min(280px, 40vw);
  background: #fff7ed;
  bottom: 5%;
  left: 35%;
  animation: blob-drift 20s ease-in-out infinite 2s;
}

@keyframes blob-drift {

  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }

  50% {
    transform: translate(18px, -22px) scale(1.05);
  }
}

.hero-stack {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: clamp(20px, 4vw, 28px);
}

/* 导航下方：卖点条 */
.hero-strip {
  background: linear-gradient(135deg, #ffffff 0%, #fff5f5 55%, #fffbfb 100%);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-lg);
  padding: clamp(16px, 3vw, 22px) clamp(18px, 3vw, 26px);
  box-shadow: var(--shadow), 0 0 0 1px rgba(255, 255, 255, 0.9) inset;
}

.hero-strip-intro {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.pulse-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(225, 29, 72, 0.45);
  animation: pulse-ring 2.2s ease-out infinite;
  flex-shrink: 0;
}

@keyframes pulse-ring {
  0% {
    box-shadow: 0 0 0 0 rgba(225, 29, 72, 0.45);
  }

  70% {
    box-shadow: 0 0 0 12px rgba(225, 29, 72, 0);
  }

  100% {
    box-shadow: 0 0 0 0 rgba(225, 29, 72, 0);
  }
}

.hero-strip-tagline {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent-dark);
  letter-spacing: 0.02em;
}

.hero-highlights {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.highlight-card {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 14px 16px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 4px 16px rgba(28, 25, 23, 0.04);
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s, border-color 0.25s;
}

.highlight-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-border);
  box-shadow: var(--shadow);
}

.highlight-ico {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: #fff;
  background: linear-gradient(145deg, var(--accent), var(--accent-2));
}

.highlight-ico.ico-sm {
  font-size: 0.62rem;
  letter-spacing: 0;
}

.highlight-ico.ico-xs {
  font-size: 0.5rem;
  letter-spacing: -0.03em;
  line-height: 1.15;
  padding: 0 1px;
}

.highlight-body strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 4px;
  color: var(--text);
}

.highlight-body span {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.5;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(28px, 5vw, 48px);
  align-items: center;
}

.eyebrow {
  margin: 0 0 12px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero h1 {
  margin: 0 0 14px;
  font-size: clamp(2.35rem, 5.2vw, 3.4rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  background: linear-gradient(120deg, var(--accent-dark) 0%, var(--accent) 45%, #fb7185 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  margin: 0 0 24px;
  font-size: 1.06rem;
  color: var(--muted);
  max-width: 38ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.hero-chips {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hero-chips li {
  font-size: 0.8rem;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 999px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.12s, box-shadow 0.2s, filter 0.2s, background 0.2s, border-color 0.2s;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #f43f5e 100%);
  color: #fff;
  box-shadow: 0 10px 28px rgba(225, 29, 72, 0.35);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  filter: brightness(1.06);
  outline: none;
}

.btn-secondary {
  background: var(--surface);
  color: var(--accent-dark);
  border-color: var(--accent-border);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: var(--surface-2);
  outline: none;
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.75);
  color: var(--text);
  border-color: var(--border);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--accent-border);
  color: var(--accent-dark);
  outline: none;
}

.btn-download {
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--cool) 0%, #14b8a6 100%);
  color: #fff;
  border: none;
  box-shadow: 0 6px 18px rgba(13, 148, 136, 0.28);
}

.btn-download:hover,
.btn-download:focus-visible {
  filter: brightness(1.06);
  outline: none;
}

/* 首屏右侧手机示意 */
.hero-showcase {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 320px;
}

.hero-phone {
  position: relative;
  width: min(260px, 72vw);
  border-radius: 36px;
  padding: 12px;
  background: linear-gradient(160deg, #fecdd3 0%, #fff 40%, #fef2f2 100%);
  border: 1px solid var(--accent-border);
  box-shadow: var(--shadow-lg);
}

.hero-phone-notch {
  position: absolute;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  width: 88px;
  height: 26px;
  background: #1c1917;
  border-radius: 0 0 16px 16px;
  z-index: 2;
}

.hero-phone-screen {
  border-radius: 28px;
  overflow: hidden;
  background: #e7e5e4;
  aspect-ratio: 390 / 844;
}

.hero-phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-float {
  position: absolute;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--accent-border);
  color: var(--accent-dark);
  box-shadow: var(--shadow);
  animation: float-y 5s ease-in-out infinite;
}

.hero-float-a {
  top: 12%;
  right: 0;
  animation-delay: 0s;
}

.hero-float-b {
  bottom: 28%;
  left: 0;
  animation-delay: 1.2s;
}

.hero-float-c {
  bottom: 8%;
  right: 6%;
  animation-delay: 2.4s;
}

@keyframes float-y {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

/* —— 滚动显现 —— */
.reveal {
  opacity: 0;
  transform: translate3d(0, 32px, 0);
  transition: opacity 0.75s var(--ease-out), transform 0.75s var(--ease-out);
}

.reveal.is-revealed {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

.feature-grid .feature-card.reveal:nth-child(1) {
  transition-delay: 0.05s;
}

.feature-grid .feature-card.reveal:nth-child(2) {
  transition-delay: 0.12s;
}

.feature-grid .feature-card.reveal:nth-child(3) {
  transition-delay: 0.19s;
}

.feature-grid .feature-card.reveal:nth-child(4) {
  transition-delay: 0.26s;
}

.coverage-layout .reveal:nth-child(1) {
  transition-delay: 0.05s;
}

.coverage-layout .reveal:nth-child(2) {
  transition-delay: 0.12s;
}

.faq-list .faq-item.reveal:nth-child(1) {
  transition-delay: 0.03s;
}

.faq-list .faq-item.reveal:nth-child(2) {
  transition-delay: 0.08s;
}

.faq-list .faq-item.reveal:nth-child(3) {
  transition-delay: 0.13s;
}

.faq-list .faq-item.reveal:nth-child(4) {
  transition-delay: 0.18s;
}

.faq-list .faq-item.reveal:nth-child(5) {
  transition-delay: 0.23s;
}

.faq-list {
  margin: 0;
  padding: 0;
}

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 0;
  margin: 0;
}

.faq-item:last-of-type {
  border-bottom: none;
}

.faq-item summary.faq-q {
  list-style: none;
  list-style-type: none;
  cursor: pointer;
  padding: 18px 36px 18px 4px;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  position: relative;
  user-select: none;
  transition: color 0.2s, background 0.2s;
  border-radius: var(--radius);
}

.faq-item summary.faq-q::-webkit-details-marker {
  display: none;
}

.faq-item summary.faq-q::after {
  content: "";
  position: absolute;
  right: 8px;
  top: 50%;
  width: 9px;
  height: 9px;
  margin-top: -6px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(45deg);
  transition: transform 0.25s var(--ease-out);
}

.faq-item[open] summary.faq-q::after {
  transform: rotate(225deg);
  margin-top: -2px;
}

.faq-item summary.faq-q:hover,
.faq-item summary.faq-q:focus-visible {
  color: var(--accent-dark);
  background: var(--cool-soft);
  outline: none;
}

.faq-a {
  padding: 0 4px 18px;
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.65;
  max-width: 62ch;
}

/* —— 区块通用 —— */
.section {
  padding: clamp(48px, 7vw, 92px) 0;
}

.section-alt {
  background: linear-gradient(180deg, var(--bg-alt) 0%, #fffdfb 45%, #ffffff 100%);
  border-block: 1px solid var(--border);
}

.section-title {
  margin: 0 0 12px;
  font-size: clamp(1.55rem, 3vw, 2.05rem);
  font-weight: 800;
  text-align: center;
  color: var(--text);
}

.section-title-inner {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.section-title-icon {
  flex-shrink: 0;
  color: var(--accent);
}

.section-title-icon--bubbles path:last-of-type {
  color: var(--accent);
}

.section-subtitle {
  margin: 0 0 36px;
  color: var(--muted);
  font-size: 0.98rem;
}

.section-subtitle.center {
  text-align: center;
  max-width: 54ch;
  margin-inline: auto;
}

.intro-points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.intro-points li {
  padding: 18px 20px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 4px 14px rgba(28, 25, 23, 0.04);
}

.intro-points strong.intro-point-title,
.intro-point-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 1rem;
}

.intro-point-title .title-ico {
  flex-shrink: 0;
  color: var(--accent);
}

.shots-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  align-items: start;
}

.shot {
  margin: 0;
  text-align: center;
}

.shot-frame {
  position: relative;
  border-radius: 28px;
  padding: 11px 11px 13px;
  background: linear-gradient(165deg, #fff 0%, #fff5f5 100%);
  border: 1px solid var(--accent-border);
  box-shadow: var(--shadow);
}

.shot-notch {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 72px;
  height: 22px;
  background: #1c1917;
  border-radius: 0 0 12px 12px;
  z-index: 2;
}

.shot-frame img {
  border-radius: 22px;
  width: 100%;
  aspect-ratio: 390 / 844;
  object-fit: cover;
  background: #e7e5e4;
}

.shot figcaption {
  margin-top: 12px;
  font-size: 0.85rem;
  color: var(--muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.feature-card {
  padding: 22px 20px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 4px 16px rgba(28, 25, 23, 0.04);
  transition: border-color 0.2s, transform 0.25s var(--ease-out), box-shadow 0.2s;
}

.feature-card:hover {
  border-color: var(--accent-border);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.feature-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: linear-gradient(145deg, var(--accent) 0%, var(--accent-2) 100%);
  color: #fff;
  display: grid;
  place-items: center;
  margin-bottom: 14px;
  border: none;
  box-shadow: 0 8px 22px rgba(217, 45, 74, 0.25);
}

.feature-icon--svg svg {
  display: block;
}

.feature-card-title {
  margin: 0 0 8px;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.feature-title-ico {
  flex-shrink: 0;
  color: var(--accent);
}

.feature-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.coverage-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  align-items: stretch;
  max-width: 880px;
  margin-inline: auto;
}

.coverage-block {
  padding: 22px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 4px 14px rgba(28, 25, 23, 0.04);
}

.coverage-title {
  margin: 0 0 14px;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.coverage-ico {
  flex-shrink: 0;
  color: var(--accent);
}

.tag-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-list li {
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.85rem;
  background: linear-gradient(180deg, var(--surface-2) 0%, var(--surface-warm) 100%);
  border: 1px solid var(--border);
  color: var(--muted);
}

.contact-section {
  background: linear-gradient(180deg, #ffffff 0%, #f4f7f8 40%, #fffdfb 100%);
}

.contact-section .section-subtitle {
  margin-bottom: 28px;
}

.wechat-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.wechat-card {
  padding: 24px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--accent-border);
  text-align: center;
  box-shadow: var(--shadow);
}

.wechat-card-title {
  margin: 0 0 12px;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.wechat-msg-ico {
  flex-shrink: 0;
  color: var(--accent);
}

.wechat-id {
  margin: 0 0 16px;
  font-family: ui-monospace, "Cascadia Code", monospace;
  font-size: 1.05rem;
  word-break: break-all;
  color: var(--accent);
  font-weight: 600;
}

.wechat-card .copy-btn {
  width: 100%;
}

.wechat-hint {
  min-height: 1.4em;
  margin: 10px 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.contact-footnote {
  margin-top: 22px;
  font-size: 0.85rem;
  color: var(--muted);
  text-align: center;
}

.site-footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, #fff 0%, var(--bg-alt) 100%);
}

.footer-inner {
  text-align: center;
}

.footer-brand {
  margin: 0 0 8px;
  font-weight: 800;
  color: var(--accent-dark);
}

.footer-disclaimer {
  margin: 0 auto 12px;
  max-width: 560px;
  font-size: 0.85rem;
  color: var(--muted);
}

.footer-copy {
  margin: 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%) translateY(120%);
  padding: 12px 22px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--accent-border);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  z-index: 100;
  opacity: 0;
  transition: opacity 0.25s, transform 0.35s var(--ease-out);
  pointer-events: none;
  max-width: calc(100% - 32px);
  text-align: center;
}

.toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* —— 响应式布局 —— */
@media (max-width: 1080px) {
  .shots-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .hero-highlights {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-grid {
    display: flex;
    flex-direction: column;
  }

  .hero-showcase {
    order: -1;
    min-height: 280px;
  }

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

  .coverage-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .btn-download-mobile {
    display: inline-flex;
    padding: 10px 16px;
    font-size: 0.9rem;
    font-weight: 800;
    white-space: nowrap;
  }

  .header-inner {
    justify-content: space-between;
  }

  .nav-toggle span {
    background: var(--text);
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 60;
    flex-direction: column;
    align-items: stretch;
    flex-wrap: nowrap;
    gap: 4px;
    padding: 14px 16px 18px;
    background: rgba(255, 253, 251, 0.98);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    display: none;
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 12px 14px;
    border-radius: var(--radius);
  }

  .site-nav .nav-download {
    flex-direction: column;
    align-items: stretch;
    padding-bottom: 14px;
    margin-bottom: 6px;
  }

  .site-nav .btn-download {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 720px) {
  .shots-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 520px) {
  .hero-highlights {
    grid-template-columns: 1fr;
  }

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

  .wechat-cards {
    grid-template-columns: 1fr;
  }

  .shots-grid {
    grid-template-columns: 1fr;
    max-width: 300px;
    margin-inline: auto;
  }
}

/* 汉堡菜单动画 */
body.nav-open .nav-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

body.nav-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}

body.nav-open .nav-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .blob,
  .pulse-dot,
  .hero-float {
    animation: none !important;
  }

  .hero-parallax {
    transform: none !important;
  }

  .feature-card,
  .btn,
  .toast,
  .highlight-card {
    transition: none;
  }
}

.coverage-desc {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.6;
  max-width: 46ch;
}

/* ========== 悬浮客服与回顶按钮样式 ========== */
/* 圆形按钮点击区域精确控制 */
.float-btn,
.float-to-top {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  clip-path: circle(50%);
  padding: 0;
  cursor: pointer;
}

/* 客服主按钮 */
.float-btn {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--accent) 0%, #f43f5e 100%);
  border: none;
  box-shadow: 0 8px 20px rgba(225, 29, 72, 0.4);
  transition: transform 0.2s, box-shadow 0.2s;
}

.float-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 12px 28px rgba(225, 29, 72, 0.5);
}

/* 回顶按钮 */
.float-to-top {
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid var(--accent-border);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  font-size: 24px;
  color: var(--accent);
  transition: opacity 0.25s, transform 0.25s, visibility 0.25s, background 0.2s;
  opacity: 0;
  visibility: hidden;
  transform: scale(0.8);
}

.float-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

.float-to-top:hover {
  background: var(--accent);
  color: white;
}

/* 悬浮容器 */
.floating-contact {
  position: fixed;
  bottom: 100px;
  right: 24px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}

/* 微信图标 */
.float-icon {
  font-size: 28px;
  color: white;
  display: block;
  line-height: 1;
}

/* 弹窗（默认在按钮上方，通过 order 属性） */
.float-popup {
  order: -1;               /* 让弹窗出现在按钮上方 */
  margin-bottom: 12px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
  background: var(--surface);
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--accent-border);
  width: 260px;
  overflow: hidden;
}

.float-popup.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.float-popup-inner {
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* 弹窗内每个联系人项 */
.float-contact-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px;
  background: var(--bg-alt);
  border-radius: 16px;
  transition: background 0.2s;
  min-height: 70px;
}

.float-contact-item:hover {
  background: var(--accent-soft);
}

/* 中间文字区域 */
.float-contact-item > div {
  flex: 1;
  min-width: 0;
}

.float-contact-icon {
  font-size: 24px;
  width: 32px;
  text-align: center;
  flex-shrink: 0;
}

.float-contact-item strong {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 4px;
  color: var(--text);
}

.float-wechat-id {
  font-size: 0.8rem;
  font-family: monospace;
  color: var(--accent);
  word-break: break-all;
  display: inline-block;
  max-width: 100%;
}

.float-copy-btn {
  flex-shrink: 0;
  background: var(--surface);
  border: 1px solid var(--accent-border);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.float-copy-btn:hover {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

/* 移动端悬浮调整 */
@media (max-width: 768px) {
  .floating-contact {
    bottom: 70px;
    right: 16px;
  }
  .float-btn {
    width: 48px;
    height: 48px;
  }
  .float-popup {
    width: 240px;
  }
}

@media (max-height: 600px) {
  .floating-contact {
    bottom: 20px;
  }
}
/* 修复复制按钮点击区域过小的问题 */
.wechat-card .copy-btn {
  display: block !important;
  width: 100% !important;
  padding: 12px 16px !important;
  box-sizing: border-box;
  text-align: center;
}

/* 让按钮内部所有子元素不拦截点击 */
.wechat-card .copy-btn * {
  pointer-events: none;
}
.floating-contact {
  pointer-events: none;
}
.floating-contact .float-btn,
.floating-contact .float-to-top,
.floating-contact .float-popup {
  pointer-events: auto;
}