:root {
  color-scheme: light;
  --ink: #14283a;
  --muted: #5d7384;
  --line: #d2e6f3;
  --soft: #f2f9fd;
  --soft-blue: #e5f4fb;
  --accent: #2f92c8;
  --accent-dark: #1479ad;
  --accent-deep: #0d5278;
  --warm: #efb57d;
  --warm-soft: #fff2e6;
  --white: #ffffff;
  --shadow: 0 14px 38px rgba(20, 121, 173, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 108px;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background:
    radial-gradient(circle at 10% 0%, rgba(239, 181, 125, 0.18), transparent 280px),
    linear-gradient(180deg, #f0f9ff 0%, #ffffff 340px);
  line-height: 1.55;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  min-height: 58px;
  padding: 8px clamp(14px, 4vw, 44px);
  background: rgba(255, 255, 255, 0.93);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.notice-bar {
  position: sticky;
  top: 58px;
  z-index: 19;
  overflow: hidden;
  height: 34px;
  color: var(--accent-deep);
  background: linear-gradient(90deg, #ffffff, var(--soft-blue), #ffffff);
  border-bottom: 1px solid var(--line);
}

.notice-track {
  display: inline-flex;
  min-width: max-content;
  align-items: center;
  gap: 34px;
  height: 100%;
  padding-left: 100%;
  white-space: nowrap;
  animation: notice-scroll 44s linear infinite;
}

.notice-track span {
  position: relative;
  font-size: 14px;
  font-weight: 800;
}

.notice-track span::before {
  content: "";
  position: absolute;
  left: -18px;
  top: 50%;
  width: 6px;
  height: 6px;
  background: var(--warm);
  border-radius: 999px;
  transform: translateY(-50%);
}

@keyframes notice-scroll {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(-100%);
  }
}

.brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  color: var(--accent-deep);
  font-weight: 800;
  letter-spacing: 0;
}

.header-nav {
  display: grid;
  grid-template-columns: repeat(5, minmax(118px, 1fr));
  flex: 1 1 auto;
  min-width: 0;
  max-width: 980px;
  gap: 12px;
  overflow-x: auto;
  scrollbar-width: none;
}

.header-nav::-webkit-scrollbar {
  display: none;
}

.header-nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 14px;
  color: var(--accent-dark);
  border: 1px solid rgba(20, 121, 173, 0.22);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  font-size: 14px;
  font-weight: 900;
  white-space: nowrap;
}

.header-nav-link.is-active {
  color: var(--white);
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  box-shadow: 0 8px 18px rgba(20, 121, 173, 0.18);
}

.brand-logo {
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  border: 2px solid rgba(255, 255, 255, 0.82);
  border-radius: 12px;
  object-fit: cover;
  object-position: center 34%;
  box-shadow: 0 8px 18px rgba(20, 121, 173, 0.2);
}

.header-action,
.primary-button,
.ghost-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  border-radius: 8px;
  font-weight: 800;
  white-space: nowrap;
}

.header-action,
.primary-button {
  color: var(--white);
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  box-shadow: 0 10px 22px rgba(20, 121, 173, 0.24);
}

.header-action {
  flex: 0 0 auto;
  padding: 0 15px;
  font-size: 14px;
}

.primary-button,
.ghost-button {
  padding: 0 18px;
}

.ghost-button {
  color: var(--accent-dark);
  border: 1px solid rgba(20, 121, 173, 0.28);
  background: var(--white);
}

.section-pad {
  padding: clamp(26px, 4.5vw, 54px) clamp(14px, 4vw, 44px);
}

.hero {
  display: grid;
  grid-template-columns: minmax(280px, 0.7fr) minmax(0, 1.3fr);
  align-items: start;
  gap: clamp(14px, 2.6vw, 30px);
  padding: clamp(18px, 3vw, 34px) clamp(14px, 4vw, 44px) 18px;
}

.hero-video-first {
  grid-template-columns: minmax(280px, 0.58fr) minmax(0, 1.42fr);
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: clamp(16px, 2vw, 22px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(245, 251, 255, 0.9)),
    var(--white);
  box-shadow: 0 10px 28px rgba(20, 121, 173, 0.09);
}

.hero-logo {
  width: 74px;
  height: 74px;
  margin-bottom: 10px;
  border: 4px solid var(--white);
  border-radius: 18px;
  object-fit: cover;
  object-position: center 34%;
  box-shadow: 0 14px 30px rgba(20, 121, 173, 0.2);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  color: var(--ink);
  letter-spacing: 0;
  line-height: 1.14;
}

h1 {
  max-width: 540px;
  font-size: clamp(30px, 4vw, 52px);
}

h2 {
  font-size: clamp(24px, 3.1vw, 38px);
}

.hero-text,
.section-heading p,
.guide-copy p,
.wechat p {
  max-width: 650px;
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 16px;
}

.hero-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(118px, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.hero-highlight {
  display: inline-flex;
  width: fit-content;
  align-items: baseline;
  gap: 9px;
  margin-top: 12px;
  padding: 8px 12px;
  color: var(--white);
  background:
    radial-gradient(circle at 90% 20%, rgba(239, 181, 125, 0.32), transparent 70px),
    linear-gradient(135deg, var(--accent-deep), var(--accent));
  border-radius: 8px;
  box-shadow: 0 10px 22px rgba(20, 121, 173, 0.16);
}

.hero-highlight strong {
  font-size: 24px;
  line-height: 1;
}

.hero-highlight span {
  font-size: 13px;
  font-weight: 800;
}

.wechat-copy-line {
  display: flex;
  width: fit-content;
  max-width: 100%;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
  color: var(--accent-deep);
  font-size: 15px;
  font-weight: 800;
}

.hero-wechat-copy {
  padding: 8px 8px 8px 12px;
  border: 1px solid rgba(20, 121, 173, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 8px 18px rgba(20, 121, 173, 0.08);
}

.copy-wechat {
  min-height: 34px;
  padding: 0 14px;
  border: 1px solid rgba(32, 184, 101, 0.28);
  border-radius: 999px;
  color: #fff;
  background: linear-gradient(135deg, #18b85f, #35c96f);
  box-shadow: 0 8px 16px rgba(24, 184, 95, 0.22);
  font: inherit;
  font-size: 13px;
  font-weight: 900;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, filter 180ms ease;
}

.copy-wechat:hover {
  color: var(--white);
  filter: brightness(1.04);
  box-shadow: 0 10px 20px rgba(24, 184, 95, 0.3);
  transform: translateY(-1px);
}

.copy-wechat.is-copied {
  border-color: rgba(32, 184, 101, 0.44);
  background: linear-gradient(135deg, #11a854, #32c76a);
}

.hero-method-map {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  margin-top: 12px;
}

.hero-method-map span {
  display: grid;
  min-height: 72px;
  align-content: start;
  gap: 4px;
  padding: 10px;
  color: var(--accent-deep);
  border: 1px solid rgba(20, 121, 173, 0.18);
  border-radius: 8px;
  background: linear-gradient(180deg, #ffffff, var(--soft-blue));
  text-align: left;
}

.hero-method-map b {
  display: block;
  font-size: 14px;
  line-height: 1.25;
}

.hero-method-map small {
  display: block;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
}

.brand-keywords {
  display: grid;
  grid-template-columns: minmax(220px, 0.72fr) minmax(0, 1.28fr);
  gap: 18px;
  width: min(100% - 32px, 1440px);
  margin: 16px auto 0;
  padding: 18px;
  border: 1px solid rgba(20, 121, 173, 0.18);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(229, 244, 251, 0.72));
  box-shadow: 0 14px 34px rgba(20, 121, 173, 0.1);
}

.brand-keywords h2 {
  font-size: clamp(22px, 2.2vw, 32px);
}

.brand-keywords p:not(.eyebrow) {
  max-width: 520px;
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 15px;
}

.brand-keyword-list {
  display: flex;
  flex-wrap: wrap;
  align-content: center;
  gap: 8px;
}

.brand-keyword-list span {
  padding: 8px 11px;
  color: var(--accent-deep);
  border: 1px solid rgba(20, 121, 173, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  font-size: 14px;
  font-weight: 900;
  line-height: 1;
}

.media-button {
  padding: 0;
  color: inherit;
  font: inherit;
  text-align: left;
  background: transparent;
  border: 0;
  cursor: zoom-in;
}

.hero-wall {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-auto-rows: minmax(112px, 1fr);
  gap: 8px;
}

.hero-video-wrap {
  display: grid;
  gap: 10px;
}

.hero-video-wrap p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.main-video {
  position: relative;
  overflow: hidden;
  width: 100%;
  min-height: clamp(330px, 46vw, 560px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--accent-deep);
  box-shadow: 0 18px 48px rgba(20, 121, 173, 0.18);
}

.main-video video {
  width: 100%;
  height: clamp(330px, 46vw, 560px);
  min-height: inherit;
  display: block;
  object-fit: cover;
}

.main-play-button {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 132px;
  height: 132px;
  margin: auto;
  padding: 0;
  color: #ffffff;
  background:
    radial-gradient(circle at 34% 28%, rgba(255, 255, 255, 0.24), transparent 34%),
    linear-gradient(135deg, rgba(47, 146, 200, 0.96), rgba(13, 82, 120, 0.96));
  border: 3px solid rgba(255, 255, 255, 0.9);
  border-radius: 999px;
  box-shadow:
    0 18px 48px rgba(5, 28, 44, 0.36),
    0 0 0 12px rgba(255, 255, 255, 0.26),
    0 0 0 22px rgba(47, 146, 200, 0.18);
  cursor: pointer;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.main-play-button:hover {
  transform: scale(1.06);
}

.main-play-icon {
  width: 0;
  height: 0;
  margin-left: 14px;
  filter: drop-shadow(0 4px 10px rgba(5, 28, 44, 0.34));
  border-top: 34px solid transparent;
  border-bottom: 34px solid transparent;
  border-left: 58px solid #ffffff;
}

.main-video.is-playing .main-play-button {
  opacity: 0;
  pointer-events: none;
}

#gallery {
  padding-top: clamp(12px, 2vw, 24px);
}

.wall-card {
  position: relative;
  overflow: hidden;
  min-height: 128px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
  box-shadow: 0 8px 22px rgba(20, 121, 173, 0.09);
}

.wall-card.large {
  grid-column: span 2;
  grid-row: span 2;
}

.wall-card img {
  width: 100%;
  height: 100%;
  min-height: inherit;
  object-fit: cover;
}

.wall-card span {
  position: absolute;
  left: 8px;
  right: 8px;
  bottom: 8px;
  padding: 7px 8px;
  color: var(--white);
  background: rgba(13, 82, 120, 0.8);
  border-radius: 7px;
  font-size: 13px;
  font-weight: 800;
}

.section-heading {
  display: grid;
  gap: 0;
  margin-bottom: 16px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 9px;
}

.compare-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.detail-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.detail-section {
  background: var(--soft);
}

.case-card {
  overflow: hidden;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.case-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.case-card img {
  width: 100%;
  aspect-ratio: 1 / 0.82;
  object-fit: cover;
  background: var(--soft);
}

.compare-grid .case-card img {
  aspect-ratio: 1 / 0.84;
}

.detail-grid .case-card img {
  aspect-ratio: 1 / 0.95;
}

.compare-grid .case-card span,
.detail-grid .case-card span {
  display: none;
}

.case-card span {
  display: block;
  min-height: 38px;
  padding: 8px 9px 9px;
  color: var(--accent-deep);
  font-size: 13px;
  font-weight: 800;
}

.video-section {
  background: var(--soft);
}

.proof-section {
  background:
    radial-gradient(circle at 92% 8%, rgba(239, 181, 125, 0.16), transparent 230px),
    #ffffff;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.shop-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.proof-card {
  overflow: hidden;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 10px 26px rgba(20, 121, 173, 0.08);
}

.proof-card img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: top center;
  background: var(--soft);
}

.proof-card strong,
.proof-card span {
  display: block;
  padding-inline: 12px;
}

.proof-card strong {
  padding-top: 11px;
  color: var(--accent-deep);
  font-size: 16px;
}

.proof-card span {
  padding-top: 4px;
  padding-bottom: 13px;
  color: var(--muted);
  font-size: 13px;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 9px;
  margin-top: 12px;
}

.review-card {
  overflow: hidden;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 8px 22px rgba(20, 121, 173, 0.08);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.review-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.review-card img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: top center;
  background: var(--white);
}

.pricing {
  background:
    radial-gradient(circle at 85% 16%, rgba(239, 181, 125, 0.18), transparent 220px),
    #ffffff;
}

.price-card {
  display: grid;
  gap: 16px;
  max-width: 1280px;
  margin: 0 auto;
  padding: clamp(16px, 2.8vw, 28px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    radial-gradient(circle at 88% 12%, rgba(239, 181, 125, 0.16), transparent 230px),
    linear-gradient(180deg, #ffffff, var(--soft));
  box-shadow: 0 14px 34px rgba(20, 121, 173, 0.1);
}

.price-main {
  position: relative;
  overflow: hidden;
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 18px 22px;
  color: var(--white);
  border: 0;
  border-radius: 8px;
  background:
    radial-gradient(circle at 88% 12%, rgba(255, 255, 255, 0.22), transparent 120px),
    linear-gradient(135deg, var(--accent-deep), var(--accent));
  box-shadow: 0 16px 34px rgba(20, 121, 173, 0.18);
}

.price-main .eyebrow,
.price-main h2 {
  color: var(--white);
}

.price-main .eyebrow {
  margin-bottom: 4px;
  opacity: 0.86;
}

.price-main h2 {
  margin: 0;
  font-size: clamp(26px, 3.6vw, 42px);
}

.price-number {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px;
  margin-top: 0;
  color: var(--white);
  white-space: nowrap;
}

.price-number span {
  font-size: 32px;
  font-weight: 900;
}

.price-number strong {
  font-size: clamp(58px, 6vw, 88px);
  line-height: 0.9;
}

.price-number em {
  color: rgba(255, 255, 255, 0.86);
  font-size: 17px;
  font-style: normal;
  font-weight: 800;
}

.price-copy {
  display: grid;
  gap: 10px;
  align-content: start;
}

.price-slogan {
  padding: 12px 14px;
  color: var(--white);
  border-radius: 8px;
  background:
    radial-gradient(circle at 96% 10%, rgba(239, 181, 125, 0.32), transparent 100px),
    linear-gradient(135deg, var(--accent-deep), var(--accent));
  box-shadow: 0 12px 24px rgba(20, 121, 173, 0.18);
  font-size: clamp(19px, 2.2vw, 28px);
  font-weight: 900;
  line-height: 1.35;
  text-align: center;
}

.price-copy p,
.price-copy small {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

.price-reasons {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.price-reasons span {
  padding: 10px 12px;
  color: var(--accent-deep);
  border: 1px solid rgba(20, 121, 173, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.76);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.55;
}

.price-hooks {
  padding: 14px 16px;
  border: 1px solid rgba(20, 121, 173, 0.2);
  border-radius: 8px;
  background:
    radial-gradient(circle at 100% 0%, rgba(239, 181, 125, 0.18), transparent 92px),
    linear-gradient(180deg, rgba(234, 247, 255, 0.88), rgba(255, 255, 255, 0.9));
}

.price-hooks strong {
  display: block;
  color: var(--accent-deep);
  font-size: 18px;
  line-height: 1.35;
}

.price-hooks ul {
  display: grid;
  gap: 7px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.price-hooks li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
}

.price-hooks li::before {
  position: absolute;
  top: 0.75em;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--accent);
  content: "";
}

.price-copy small {
  padding: 12px 14px;
  color: var(--accent-deep);
  border: 1px solid rgba(20, 121, 173, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  font-size: 13px;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.video-card {
  position: relative;
  overflow: hidden;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 10px 26px rgba(20, 121, 173, 0.1);
}

.video-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.video-card strong {
  display: block;
  padding: 12px 14px 14px;
  color: var(--accent-deep);
  font-size: 17px;
}

.play-badge {
  position: absolute;
  left: 10px;
  top: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  color: var(--white);
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border-radius: 999px;
  font-size: 12px;
  font-weight: 900;
}

.guide {
  display: grid;
  grid-template-columns: minmax(300px, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(16px, 2.6vw, 30px);
  align-items: start;
  width: min(1280px, calc(100% - clamp(28px, 8vw, 88px)));
  max-width: 1280px;
  margin: 0 auto;
  padding: clamp(16px, 2.8vw, 28px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    radial-gradient(circle at 12% 4%, rgba(47, 146, 200, 0.1), transparent 220px),
    linear-gradient(180deg, #ffffff, var(--soft));
  box-shadow: 0 14px 34px rgba(20, 121, 173, 0.1);
}

.guide-copy {
  width: 100%;
  max-width: none;
  justify-self: stretch;
}

.guide-photo {
  width: min(100%, 430px);
  max-height: 500px;
  margin: 16px auto 0;
  object-fit: contain;
  object-position: center bottom;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 10px 26px rgba(20, 121, 173, 0.1);
}

.shooting-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.shooting-steps li {
  position: relative;
  min-height: 78px;
  padding: 14px 14px 14px 48px;
  color: var(--accent-deep);
  border: 1px solid rgba(20, 121, 173, 0.22);
  border-radius: 8px;
  background: linear-gradient(180deg, var(--soft-blue), var(--warm-soft));
  font-size: 14px;
}

.shooting-steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 14px;
  top: 14px;
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  color: var(--white);
  background: var(--accent);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 900;
}

.shooting-steps strong {
  display: block;
  margin-bottom: 3px;
  color: var(--ink);
  font-size: 15px;
}

.wechat {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  margin: 0 clamp(14px, 4vw, 44px) clamp(28px, 4.5vw, 54px);
  padding: clamp(20px, 3.5vw, 34px);
  color: var(--white);
  background:
    radial-gradient(circle at 88% 18%, rgba(239, 181, 125, 0.34), transparent 190px),
    linear-gradient(135deg, var(--accent-deep), var(--accent));
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.wechat h2,
.wechat .eyebrow,
.wechat p {
  color: var(--white);
}

.wechat p {
  opacity: 0.9;
}

.wechat-slogan {
  margin-top: 8px;
  font-size: clamp(20px, 2.7vw, 32px);
  font-weight: 900;
  line-height: 1.35;
  opacity: 1;
}

.wechat-id {
  color: var(--white);
  font-size: 18px;
  opacity: 1;
}

.copy-wechat-light {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.38);
  background: linear-gradient(135deg, #18b85f, #35c96f);
}

.floating-wechat {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 30;
  transform-origin: right bottom;
  transition: transform 0.25s ease;
  animation: wechat-nudge 16s ease-in-out infinite;
}

.floating-wechat-card {
  display: grid;
  gap: 6px;
  width: 136px;
  padding: 9px;
  color: var(--accent-deep);
  text-align: center;
  border: 1px solid rgba(20, 121, 173, 0.3);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 16px 42px rgba(20, 121, 173, 0.22);
  backdrop-filter: blur(12px);
}

.wechat-toggle {
  position: absolute;
  left: -15px;
  top: 50%;
  z-index: 2;
  display: inline-grid;
  width: 17px;
  height: 42px;
  place-items: center;
  color: var(--accent-deep);
  border: 1px solid rgba(20, 121, 173, 0.3);
  border-right: 0;
  border-radius: 999px 0 0 999px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: -8px 10px 20px rgba(20, 121, 173, 0.14);
  backdrop-filter: blur(12px);
  font-size: 17px;
  font-weight: 900;
  line-height: 1;
  cursor: pointer;
  transform: translateY(-50%);
}

.wechat-toggle:hover {
  color: var(--white);
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
}

.floating-wechat.is-collapsed {
  animation: none;
  transform: translateX(calc(100% + 15px));
}

.floating-wechat.is-collapsed .wechat-toggle {
  left: -25px;
  width: 25px;
  height: 40px;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.76);
  border-radius: 999px 0 0 999px;
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  box-shadow: -8px 10px 20px rgba(20, 121, 173, 0.18);
  font-size: 17px;
}

@keyframes wechat-nudge {
  0%,
  82%,
  100% {
    transform: translateX(0) rotate(0deg);
  }

  84% {
    transform: translateX(-5px) rotate(-1deg);
  }

  86% {
    transform: translateX(5px) rotate(1deg);
  }

  88% {
    transform: translateX(-4px) rotate(-1deg);
  }

  90% {
    transform: translateX(4px) rotate(1deg);
  }

  92% {
    transform: translateX(0) rotate(0deg);
  }
}

.floating-wechat-card span {
  font-size: 13px;
  font-weight: 900;
}

.floating-wechat-card img {
  width: 118px;
  height: 118px;
  border-radius: 6px;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  padding: 20px clamp(14px, 4vw, 44px);
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 14px;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 22px;
  background: rgba(10, 29, 43, 0.78);
}

.lightbox.is-open {
  display: flex;
}

.lightbox img {
  max-width: min(1080px, 92vw);
  max-height: 86vh;
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 26px 80px rgba(0, 0, 0, 0.38);
}

.lightbox-close {
  position: fixed;
  top: 18px;
  right: 18px;
  width: 44px;
  height: 44px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  font-size: 32px;
  line-height: 1;
  cursor: pointer;
}

@media (max-width: 1050px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .brand-keywords {
    grid-template-columns: 1fr;
  }

  .gallery-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .compare-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .detail-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

  .price-card {
    grid-template-columns: 1fr;
  }

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

  .reviews-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .shooting-steps {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .wechat {
    grid-template-columns: 1fr;
  }

  .guide-photo {
    width: min(100%, 380px);
    max-height: 520px;
  }

  .hero-wall {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-auto-rows: 118px;
  }

  .gallery-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .compare-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .detail-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

  .price-reasons {
    grid-template-columns: 1fr;
  }

  .price-main {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 16px;
  }

  .price-number {
    white-space: normal;
  }

  .price-card,
  .guide {
    padding: 14px;
  }

  .guide {
    width: calc(100% - 20px);
  }

  .shop-grid,
  .reviews-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

}

@media (max-width: 520px) {
  .site-header {
    min-height: 54px;
    padding-inline: 10px;
  }

  .notice-bar {
    top: 54px;
    height: 30px;
  }

  .notice-track {
    gap: 26px;
    animation-duration: 24s;
  }

  .notice-track span {
    font-size: 12px;
  }

  .brand-logo {
    width: 38px;
    height: 38px;
  }

  .header-nav {
    display: flex;
    gap: 6px;
    max-width: none;
  }

  .header-nav-link {
    flex: 0 0 auto;
    min-height: 34px;
    padding: 0 10px;
    font-size: 13px;
  }

  .header-action {
    min-height: 34px;
    padding: 0 10px;
    font-size: 13px;
  }

  .hero {
    padding-inline: 10px;
  }

  .hero-copy {
    padding: 16px;
  }

  .brand-keywords {
    width: calc(100% - 20px);
    margin-top: 10px;
    padding: 14px;
    gap: 12px;
  }

  .brand-keywords p:not(.eyebrow) {
    font-size: 14px;
  }

  .brand-keyword-list {
    gap: 6px;
  }

  .brand-keyword-list span {
    padding: 7px 9px;
    font-size: 12px;
  }

  .guide-photo {
    width: 100%;
    max-height: none;
  }

  .hero-logo {
    width: 78px;
    height: 78px;
    border-radius: 18px;
  }

  h1 {
    font-size: 30px;
  }

  .hero-text,
  .section-heading p,
  .guide-copy p,
  .wechat p {
    font-size: 15px;
  }

  .wechat-copy-line {
    width: 100%;
    gap: 7px;
    font-size: 14px;
  }

  .copy-wechat {
    min-height: 32px;
    padding-inline: 11px;
    font-size: 12px;
  }

  .hero-actions {
    display: grid;
  }

  .hero-wall {
    gap: 6px;
    grid-auto-rows: 104px;
  }

  .main-video {
    min-height: 300px;
  }

  .main-play-button {
    width: 96px;
    height: 96px;
    box-shadow:
      0 14px 36px rgba(5, 28, 44, 0.34),
      0 0 0 8px rgba(255, 255, 255, 0.26),
      0 0 0 15px rgba(47, 146, 200, 0.16);
  }

  .main-play-icon {
    margin-left: 10px;
    border-top-width: 25px;
    border-bottom-width: 25px;
    border-left-width: 42px;
  }

  .wall-card.large {
    grid-column: span 2;
    grid-row: span 2;
  }

  .section-pad {
    padding-inline: 10px;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 7px;
  }

  .compare-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .case-card span {
    min-height: 36px;
    padding: 7px;
    font-size: 12px;
  }

  .shooting-steps li {
    padding-right: 12px;
  }

  .wechat {
    margin-inline: 10px;
  }

  .floating-wechat {
    right: 8px;
    bottom: 10px;
  }

  .floating-wechat-card {
    width: 104px;
    padding: 7px;
  }

  .wechat-toggle {
    left: -13px;
    width: 15px;
    height: 36px;
    font-size: 15px;
  }

  .floating-wechat.is-collapsed .wechat-toggle {
    left: -22px;
    width: 22px;
    height: 36px;
    font-size: 15px;
  }

  .floating-wechat-card img {
    width: 90px;
    height: 90px;
  }

  .floating-wechat-card span {
    font-size: 12px;
  }
}