:root {
  --navy: #17336d;
  --navy-dark: #081a38;
  --navy-soft: #e9eef8;
  --gold: #e9b923;
  --orange: #ef771d;
  --red: #d91f42;
  --ink: #172033;
  --muted: #647084;
  --line: #dce2ea;
  --surface: #f4f6f9;
  --white: #ffffff;
  --shadow: 0 16px 40px rgba(8, 26, 56, 0.12);
  --container: 1200px;
  --header-height: 72px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  letter-spacing: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 18px);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

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

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  line-height: 1.2;
}

h2 {
  margin-bottom: 0;
  color: var(--navy-dark);
  font-size: 40px;
}

.container {
  width: min(calc(100% - 48px), var(--container));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 12px;
  z-index: 1000;
  padding: 10px 14px;
  color: var(--white);
  background: var(--navy-dark);
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-height);
  border-bottom: 1px solid rgba(220, 226, 234, 0.8);
  background: rgba(255, 255, 255, 0.96);
  transition: box-shadow 180ms ease;
}

.site-header.is-scrolled {
  box-shadow: 0 8px 26px rgba(8, 26, 56, 0.1);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 28px;
}

.brand {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  min-width: 0;
  color: var(--navy-dark);
}

.brand img {
  width: 100px;
  height: 46px;
  object-fit: contain;
}

.brand-copy {
  display: grid;
  margin-left: 10px;
  line-height: 1.2;
}

.brand-copy strong {
  font-size: 18px;
}

.brand-copy span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 26px;
}

.site-nav a {
  position: relative;
  color: #394458;
  font-size: 14px;
  font-weight: 700;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: -9px;
  left: 0;
  height: 2px;
  background: var(--red);
  content: "";
  transform: scaleX(0);
  transition: transform 160ms ease;
}

.site-nav a:hover,
.site-nav a[aria-current="true"] {
  color: var(--navy);
}

.site-nav a:hover::after,
.site-nav a[aria-current="true"]::after {
  transform: scaleX(1);
}

.header-actions,
.header-phone {
  display: flex;
  align-items: center;
}

.header-actions {
  gap: 12px;
}

.header-phone {
  gap: 8px;
  color: var(--navy-dark);
  font-size: 14px;
  font-weight: 800;
  white-space: nowrap;
}

.header-douyin {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--navy-dark);
  font-size: 13px;
  font-weight: 800;
  white-space: nowrap;
}

.header-douyin svg {
  width: 18px;
  color: #111111;
}

.header-douyin:hover {
  color: var(--red);
}

.header-phone svg {
  width: 18px;
  color: var(--red);
}

.icon-button {
  display: inline-grid;
  width: 42px;
  height: 42px;
  padding: 0;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--white);
  cursor: pointer;
}

.icon-button svg {
  width: 21px;
}

.menu-button {
  display: none;
}

.hero {
  position: relative;
  display: grid;
  height: clamp(640px, 84svh, 820px);
  min-height: 640px;
  overflow: hidden;
  color: var(--white);
  background: var(--navy-dark) url("assets/images/hero-company-gate.jpg") center 7% / cover no-repeat;
  isolation: isolate;
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-media {
  z-index: -2;
  object-fit: cover;
  object-position: center 7%;
}

@media (min-width: 1101px) {
  .hero-media {
    inset: 0 auto auto 5%;
    width: 90%;
    height: auto;
    max-width: none;
  }
}

.hero-overlay {
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(5, 17, 36, 0.84) 0%, rgba(5, 17, 36, 0.68) 42%, rgba(5, 17, 36, 0.22) 72%, rgba(5, 17, 36, 0.1) 100%),
    linear-gradient(0deg, rgba(5, 17, 36, 0.48) 0%, transparent 58%);
}

.hero-content {
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  flex-direction: column;
  padding-top: calc(var(--header-height) + 36px);
  padding-bottom: 56px;
}

.hero-logo {
  width: 280px;
  max-height: 118px;
  margin-bottom: 22px;
  object-fit: contain;
  object-position: left center;
  filter: drop-shadow(0 3px 8px rgba(255, 255, 255, 0.28));
}

.eyebrow {
  margin-bottom: 12px;
  color: var(--red);
  font-size: 14px;
  font-weight: 800;
}

.hero-eyebrow {
  color: #f7cc45;
}

.hero h1 {
  max-width: 900px;
  margin-bottom: 18px;
  font-size: 56px;
  text-wrap: balance;
}

.hero-lead {
  max-width: 680px;
  margin-bottom: 28px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 20px;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  gap: 9px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button svg {
  width: 19px;
}

.button-primary {
  color: var(--white);
  background: var(--red);
  box-shadow: 0 12px 24px rgba(217, 31, 66, 0.22);
}

.button-primary:hover {
  background: #bb1736;
}

.button-light {
  color: var(--navy-dark);
  border-color: var(--white);
  background: var(--white);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  margin-top: 30px;
  gap: 12px 28px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.hero-meta svg {
  width: 17px;
  color: #f7cc45;
}

.trust-strip {
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.trust-grid > div {
  display: grid;
  min-height: 112px;
  padding: 26px 28px;
  align-content: center;
  border-right: 1px solid var(--line);
}

.trust-grid > div:first-child {
  border-left: 1px solid var(--line);
}

.trust-grid strong {
  color: var(--navy-dark);
  font-size: 18px;
}

.trust-grid span {
  color: var(--muted);
  font-size: 13px;
}

.section {
  padding: 96px 0;
}

.services-section,
.process-section,
.cooperation-section {
  background: var(--surface);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 430px);
  margin-bottom: 46px;
  align-items: end;
  gap: 48px;
}

.section-heading > p {
  margin-bottom: 2px;
  color: var(--muted);
}

.section-heading-side {
  display: grid;
  justify-items: start;
  gap: 14px;
}

.section-heading-side p {
  margin: 0;
  color: var(--muted);
}

.about-section {
  background: var(--white);
}

.about-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr);
  align-items: start;
  gap: 72px;
}

.about-heading h2 {
  max-width: 430px;
  font-size: 38px;
}

.about-content {
  padding-left: 42px;
  border-left: 3px solid var(--gold);
}

.about-content p {
  margin-bottom: 22px;
  color: #4f5b6d;
  font-size: 16px;
  line-height: 1.95;
}

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

.about-highlights {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 50px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.about-highlights > div {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  padding: 26px 24px;
  align-items: start;
  gap: 14px;
  border-right: 1px solid var(--line);
}

.about-highlights > div:last-child {
  border-right: 0;
}

.about-highlights svg {
  width: 24px;
  color: var(--red);
}

.about-highlights span,
.about-highlights strong {
  display: block;
}

.about-highlights span {
  color: var(--muted);
  font-size: 13px;
}

.about-highlights strong {
  margin-bottom: 3px;
  color: var(--navy-dark);
  font-size: 16px;
}

.about-admin-tools {
  display: none;
}

.video-edit-mode .about-admin-tools {
  display: flex;
  flex-wrap: wrap;
  margin-top: 22px;
  padding: 14px 0;
  gap: 8px;
  border-top: 1px dashed #c9d3e0;
  border-bottom: 1px dashed #c9d3e0;
}

.video-edit-mode .about-admin-tools button {
  padding: 6px 9px;
  color: var(--navy);
  border: 1px solid #bdc9d9;
  border-radius: 3px;
  background: var(--white);
  cursor: pointer;
  font-size: 11px;
  font-weight: 800;
}

.video-edit-mode .about-admin-tools button:hover {
  border-color: var(--navy);
  background: var(--navy-soft);
}

.video-edit-mode .about-section.is-text-editing [contenteditable="true"] {
  outline: 2px dashed var(--gold);
  outline-offset: 5px;
  background: #fffdf3;
}

.douyin-account-tools {
  display: grid;
  width: 100%;
  max-width: 430px;
  gap: 9px;
  padding-top: 12px;
  border-top: 1px dashed #c9d3e0;
}

.douyin-account-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.douyin-account-heading strong {
  color: var(--navy-dark);
  font-size: 13px;
}

.douyin-account-note,
.douyin-account-empty {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.douyin-account-list {
  display: grid;
  gap: 7px;
}

.douyin-account-row {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 8px;
}

.douyin-account-row a {
  min-width: 0;
  overflow: hidden;
  color: var(--navy);
  font-size: 12px;
  font-weight: 800;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.douyin-account-remove,
.douyin-account-add {
  flex: 0 0 auto;
  padding: 5px 8px;
  color: var(--navy);
  border: 1px solid #bdc9d9;
  border-radius: 3px;
  background: var(--white);
  cursor: pointer;
  font-size: 11px;
  font-weight: 800;
}

.douyin-account-remove {
  color: #8f1e34;
  border-color: #f0bac5;
}

.douyin-account-add:hover,
.douyin-account-remove:hover {
  border-color: var(--navy);
  background: var(--navy-soft);
}

.admin-settings-button {
  display: inline-flex;
  min-height: 36px;
  padding: 7px 11px;
  align-items: center;
  gap: 7px;
  color: var(--navy);
  border: 1px solid #bdc9d9;
  border-radius: 4px;
  background: var(--white);
  cursor: pointer;
  font-size: 12px;
  font-weight: 800;
}

.admin-settings-button svg {
  width: 16px;
  height: 16px;
}

.admin-settings-button:hover,
.admin-settings-button[aria-pressed="true"] {
  color: var(--white);
  border-color: var(--navy);
  background: var(--navy);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.service-visual-heading {
  display: flex;
  margin-bottom: 18px;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
}

.service-visual-heading h3 {
  margin: 0;
  color: var(--navy-dark);
  font-size: 26px;
}

.service-visual-heading > p {
  max-width: 430px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.service-card {
  position: relative;
  min-width: 0;
  padding: 30px 26px 24px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-top: 4px solid var(--gold);
  border-radius: 6px;
  background: var(--white);
}

.service-card:nth-child(2) {
  border-top-color: var(--orange);
}

.service-card:nth-child(3) {
  border-top-color: var(--navy);
}

.service-card:nth-child(4) {
  border-top-color: var(--red);
}

.service-card:nth-child(5) {
  border-top-color: #2c8a72;
}

.service-card:nth-child(6) {
  border-top-color: #3b6eb4;
}

.service-card:nth-child(7) {
  border-top-color: #7c58a9;
}

.service-card:nth-child(8) {
  border-top-color: #b55a37;
}

.service-icon {
  display: grid;
  width: 48px;
  height: 48px;
  margin-bottom: 28px;
  color: var(--navy);
  place-items: center;
  border-radius: 6px;
  background: var(--navy-soft);
}

.service-number {
  position: absolute;
  top: 25px;
  right: 24px;
  color: #c4ccd8;
  font-size: 13px;
  font-weight: 800;
}

.service-card h3 {
  margin-bottom: 12px;
  color: var(--navy-dark);
  font-size: 23px;
}

.service-card p {
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 14px;
}

.service-detail {
  display: block;
  min-height: 22px;
  color: var(--navy);
  font-size: 12px;
  font-weight: 800;
}

.service-video-slot {
  position: relative;
  display: grid;
  min-height: 190px;
  margin-top: 22px;
  overflow: hidden;
  border: 1px solid #cfd8e5;
  border-radius: 5px;
  background: #0e2345;
  place-items: center;
}

.service-video {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 190px;
  object-fit: cover;
  background: #0e2345;
}

.service-video-douyin {
  min-height: 190px;
  aspect-ratio: 16 / 9;
}

.service-douyin-player {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 190px;
  border: 0;
  background: #0e2345;
}

.service-video-label {
  position: absolute;
  right: 10px;
  bottom: 10px;
  max-width: calc(100% - 20px);
  padding: 4px 8px;
  color: var(--white);
  border-radius: 3px;
  background: rgba(8, 26, 56, 0.82);
  font-size: 11px;
  font-weight: 800;
  pointer-events: none;
}

.service-video-tools,
.service-video-actions,
.service-admin-tools {
  display: none;
}

.video-edit-mode .service-video-tools,
.video-edit-mode .service-admin-tools {
  display: flex;
  flex-wrap: wrap;
  margin-top: 10px;
  gap: 8px;
}

.video-edit-mode .service-admin-tools {
  margin: 0 0 20px;
  padding: 0 48px 12px 0;
  border-bottom: 1px dashed #c9d3e0;
}

.video-edit-mode .service-video-tools button,
.video-edit-mode .service-video-actions button,
.video-edit-mode .service-admin-tools button {
  padding: 6px 9px;
  color: var(--navy);
  border: 1px solid #bdc9d9;
  border-radius: 3px;
  background: var(--white);
  cursor: pointer;
  font-size: 11px;
  font-weight: 800;
}

.video-edit-mode .service-video-tools button:hover,
.video-edit-mode .service-video-actions button:hover,
.video-edit-mode .service-admin-tools button:hover {
  border-color: var(--navy);
  background: var(--navy-soft);
}

.video-edit-mode .service-video-slot {
  outline: 1px dashed rgba(233, 185, 35, 0.9);
  outline-offset: -5px;
}

.video-edit-mode .service-video-actions {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  max-width: calc(100% - 20px);
  gap: 6px;
}

.video-edit-mode .service-video-actions button {
  background: rgba(255, 255, 255, 0.94);
}

.video-edit-mode .service-video-actions button:last-child {
  color: #8f1e34;
  border-color: #f0bac5;
  background: rgba(255, 243, 245, 0.94);
}

.video-edit-mode .service-number {
  top: 78px;
}

.video-edit-mode .service-card.is-text-editing [contenteditable="true"] {
  outline: 2px dashed var(--gold);
  outline-offset: 4px;
  background: #fffdf3;
}

.video-edit-mode .service-card.is-text-editing .service-detail-content[contenteditable="true"] {
  padding: 12px 10px 8px;
  outline-offset: 0;
}

.service-video-placeholder {
  align-content: center;
  min-height: 190px;
  padding: 22px;
  color: #d7e3f5;
  text-align: center;
  background: #173c6d;
}

.service-video-placeholder svg {
  width: 30px;
  height: 30px;
  margin-bottom: 8px;
  color: var(--gold);
}

.service-video-placeholder strong,
.service-video-placeholder span {
  display: block;
}

.service-video-placeholder strong {
  color: var(--white);
  font-size: 15px;
}

.service-video-placeholder span {
  margin-top: 2px;
  color: #c1d0e6;
  font-size: 12px;
}

.service-details {
  margin-top: 18px;
  border-top: 1px solid var(--line);
}

.service-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0 2px;
  color: var(--navy);
  cursor: pointer;
  font-size: 13px;
  font-weight: 800;
  list-style: none;
}

.service-details summary::-webkit-details-marker {
  display: none;
}

.service-details summary::after {
  width: 18px;
  height: 18px;
  border: 1px solid #bdc9d9;
  border-radius: 50%;
  color: var(--navy);
  content: "+";
  font-size: 15px;
  line-height: 16px;
  text-align: center;
}

.service-details[open] summary::after {
  content: "−";
}

.service-detail-content {
  padding-top: 12px;
  color: var(--muted);
  font-size: 13px;
}

.service-detail-content p {
  margin-bottom: 10px;
}

.service-detail-content ul {
  margin: 0;
  padding-left: 18px;
}

.service-detail-content li + li {
  margin-top: 7px;
}

.service-detail-content strong {
  color: var(--navy-dark);
}

.service-promise {
  display: inline-block;
  margin-top: 12px;
  padding: 4px 9px;
  color: #8f1e34;
  border: 1px solid #f0bac5;
  border-radius: 3px;
  background: #fff3f5;
  font-size: 12px;
  font-weight: 800;
}

.franchise-modes {
  display: grid;
  gap: 13px;
}

.franchise-modes > div {
  padding-bottom: 11px;
  border-bottom: 1px dashed var(--line);
}

.franchise-modes > div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.franchise-modes p {
  margin: 3px 0 0;
}

.service-visuals {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr;
  margin-top: 22px;
  gap: 14px;
}

.service-visuals figure {
  position: relative;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border-radius: 6px;
}

.service-visuals img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 350ms ease;
}

.service-visuals figure:hover img {
  transform: scale(1.025);
}

.image-admin-tools {
  display: none;
}

.video-edit-mode .image-admin-tools {
  display: flex;
  margin-top: 12px;
  gap: 8px;
}

.video-edit-mode .image-admin-tools button,
.video-edit-mode .image-admin-actions button {
  padding: 6px 9px;
  color: var(--navy);
  border: 1px solid #bdc9d9;
  border-radius: 3px;
  background: var(--white);
  cursor: pointer;
  font-size: 11px;
  font-weight: 800;
}

.video-edit-mode .image-admin-tools button:hover,
.video-edit-mode .image-admin-actions button:hover {
  border-color: var(--navy);
  background: var(--navy-soft);
}

.video-edit-mode .service-visuals figure {
  outline: 1px dashed rgba(233, 185, 35, 0.9);
  outline-offset: -5px;
}

.video-edit-mode .image-admin-actions {
  position: absolute;
  right: 10px;
  bottom: 10px;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
}

.video-edit-mode .image-admin-actions button:last-of-type {
  color: #8f1e34;
  border-color: #f0bac5;
  background: rgba(255, 243, 245, 0.94);
}

.image-placeholder {
  display: grid;
  width: 100%;
  height: 100%;
  min-height: 180px;
  align-content: center;
  justify-items: center;
  color: #c1d0e6;
  background: #173c6d;
  text-align: center;
}

.image-placeholder svg {
  width: 30px;
  height: 30px;
  margin-bottom: 8px;
  color: var(--gold);
}

.image-placeholder strong {
  color: var(--white);
  font-size: 14px;
}

.is-image-empty {
  display: none;
}

.video-edit-mode .is-image-empty {
  display: block;
}

.service-visuals figcaption {
  position: absolute;
  right: 16px;
  bottom: 14px;
  padding: 7px 10px;
  color: var(--white);
  border-radius: 4px;
  background: rgba(8, 26, 56, 0.82);
  font-size: 13px;
  font-weight: 800;
}

.visual-note {
  margin: 12px 0 46px;
  color: var(--muted);
  font-size: 12px;
  text-align: right;
}

.showcase-section {
  color: var(--white);
  background: var(--navy-dark);
}

.showcase-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.45fr);
  align-items: center;
  gap: 72px;
}

.eyebrow-light {
  color: #f7cc45;
}

.showcase-copy h2,
.contact-heading h2 {
  color: var(--white);
}

.showcase-copy > p:not(.eyebrow) {
  margin: 22px 0;
  color: rgba(255, 255, 255, 0.72);
}

.check-list {
  display: grid;
  margin: 28px 0 0;
  padding: 0;
  gap: 12px;
  list-style: none;
}

.check-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
}

.check-list svg {
  width: 19px;
  color: #f7cc45;
}

.comparison-figure {
  margin: 0;
}

.comparison {
  --position: 50%;
  position: relative;
  width: 100%;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 6px;
  background: #0d1420;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.28);
}

.comparison-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.comparison-after {
  clip-path: inset(0 calc(100% - var(--position)) 0 0);
}

.comparison-range {
  position: absolute;
  inset: 0;
  z-index: 5;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: ew-resize;
}

.comparison-line {
  position: absolute;
  z-index: 3;
  top: 0;
  bottom: 0;
  left: var(--position);
  width: 2px;
  background: var(--white);
  transform: translateX(-50%);
  pointer-events: none;
}

.comparison-handle {
  position: absolute;
  z-index: 4;
  top: 50%;
  left: var(--position);
  display: grid;
  width: 48px;
  height: 48px;
  color: var(--navy-dark);
  place-items: center;
  border: 3px solid var(--white);
  border-radius: 50%;
  background: #f7cc45;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.comparison-handle svg {
  width: 22px;
}

.comparison-label {
  position: absolute;
  z-index: 2;
  top: 16px;
  padding: 7px 11px;
  border-radius: 4px;
  background: rgba(8, 26, 56, 0.82);
  font-size: 12px;
  font-weight: 800;
}

.comparison-label-before {
  left: 16px;
}

.comparison-label-after {
  right: 16px;
}

.comparison-figure figcaption {
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.58);
  font-size: 12px;
}

.video-showcase {
  grid-column: 1 / -1;
  margin-top: 12px;
  padding-top: 54px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.video-showcase-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 26px;
  gap: 32px;
}

.video-showcase-heading h3 {
  margin: 5px 0 0;
  color: var(--white);
  font-size: 28px;
}

.video-showcase-heading > p {
  max-width: 480px;
  margin: 0;
  color: rgba(255, 255, 255, 0.64);
  font-size: 14px;
}

.video-library {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(300px, 0.7fr);
  align-items: start;
  gap: 22px;
}

.video-stage {
  min-width: 0;
}

.process-video {
  display: block;
  width: 100%;
  max-height: 68vh;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 6px;
  background: #05080e;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.28);
}

.video-now-playing {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  min-height: 54px;
  padding: 10px 14px;
  gap: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.video-now-playing > span {
  color: rgba(255, 255, 255, 0.52);
  font-size: 12px;
}

.video-now-playing strong {
  min-width: 0;
  overflow: hidden;
  color: var(--white);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.video-list {
  display: grid;
  gap: 8px;
}

.video-item {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  align-items: center;
  min-width: 0;
  min-height: 74px;
  padding: 7px;
  gap: 12px;
  overflow: hidden;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-left: 3px solid transparent;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
  text-align: left;
  cursor: pointer;
  transition: border-color 180ms ease, background 180ms ease;
}

.video-item:hover {
  border-color: rgba(247, 204, 69, 0.55);
  background: rgba(255, 255, 255, 0.08);
}

.video-item.is-active {
  border-color: rgba(247, 204, 69, 0.45);
  border-left-color: #f7cc45;
  background: rgba(247, 204, 69, 0.1);
}

.video-item img {
  width: 112px;
  height: 63px;
  object-fit: cover;
  border-radius: 4px;
  background: #05080e;
}

.video-item-copy,
.video-item-copy strong,
.video-item-copy span {
  display: block;
  min-width: 0;
}

.video-item-copy strong {
  overflow: hidden;
  font-size: 14px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.video-item-copy span {
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 11px;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  gap: 1px;
  list-style: none;
  background: var(--line);
}

.process-list li {
  position: relative;
  min-height: 250px;
  padding: 30px 24px;
  background: var(--white);
}

.process-list li > span {
  color: #aab4c2;
  font-size: 12px;
  font-weight: 800;
}

.process-list li > svg {
  display: block;
  width: 28px;
  height: 28px;
  margin: 34px 0 22px;
  color: var(--red);
}

.process-list h3 {
  margin-bottom: 8px;
  color: var(--navy-dark);
  font-size: 21px;
}

.process-list p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
}

.quality-section {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(420px, 0.92fr);
  min-height: 620px;
  background: var(--white);
}

.quality-image {
  min-height: 520px;
}

.quality-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.quality-content {
  display: flex;
  justify-content: center;
  flex-direction: column;
  padding: 72px max(48px, calc((100vw - var(--container)) / 2));
}

.quality-content > p:not(.eyebrow) {
  max-width: 540px;
  margin: 24px 0 30px;
  color: var(--muted);
}

.quality-points {
  display: grid;
  gap: 20px;
}

.quality-points > div {
  display: grid;
  grid-template-columns: 42px 1fr;
  align-items: start;
  gap: 14px;
}

.quality-points svg {
  width: 24px;
  color: var(--red);
}

.quality-points span,
.quality-points strong {
  display: block;
}

.quality-points span {
  color: var(--muted);
  font-size: 14px;
}

.quality-points strong {
  margin-bottom: 2px;
  color: var(--navy-dark);
  font-size: 16px;
}

.cooperation-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}

.cooperation-list article {
  display: grid;
  grid-template-columns: 48px 1fr;
  padding: 32px 26px;
  gap: 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.cooperation-list article:nth-child(even) {
  border-right: 0;
}

.cooperation-list svg {
  width: 28px;
  color: var(--navy);
}

.cooperation-list h3 {
  margin-bottom: 8px;
  color: var(--navy-dark);
  font-size: 20px;
}

.cooperation-list p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
}

.cooperation-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 38px;
  padding: 28px 32px;
  gap: 28px;
  border-left: 4px solid var(--gold);
  background: var(--white);
}

.cooperation-cta div {
  display: grid;
}

.cooperation-cta strong {
  color: var(--navy-dark);
  font-size: 19px;
}

.cooperation-cta span {
  color: var(--muted);
  font-size: 14px;
}

.contact-section {
  padding: 90px 0;
  color: var(--white);
  background: #121820;
}

.contact-heading {
  max-width: 680px;
  margin-bottom: 46px;
}

.contact-heading > p:last-child {
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.65);
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr 1.28fr;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.contact-block {
  display: flex;
  justify-content: center;
  flex-direction: column;
  min-height: 260px;
  padding: 34px;
  border-right: 1px solid rgba(255, 255, 255, 0.16);
}

.contact-block:last-child {
  border-right: 0;
}

.contact-block > svg {
  width: 28px;
  margin-bottom: 30px;
  color: #f7cc45;
}

.contact-block > span,
.qr-block span {
  margin-bottom: 5px;
  color: rgba(255, 255, 255, 0.55);
  font-size: 13px;
}

.contact-block > a:not(.text-link),
.contact-block > strong,
.qr-block strong {
  color: var(--white);
  font-size: 22px;
  font-weight: 800;
}

.contact-block > p,
.qr-block p {
  margin: 7px 0 0;
  color: rgba(255, 255, 255, 0.52);
  font-size: 13px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-top: 18px;
  gap: 6px;
  color: #f7cc45;
  font-size: 14px;
  font-weight: 800;
}

.text-link svg {
  width: 16px;
}

.qr-block {
  display: grid;
  grid-template-columns: 142px minmax(0, 1fr);
  align-items: center;
  gap: 22px;
}

.qr-block img {
  width: 142px;
  aspect-ratio: 1;
  object-fit: contain;
  border: 8px solid var(--white);
  border-radius: 4px;
}

.site-footer {
  padding: 30px 0 90px;
  color: #8792a3;
  background: #090d13;
  font-size: 12px;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
}

.footer-inner p {
  margin-bottom: 0;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--white);
  font-weight: 800;
}

.footer-brand img {
  width: 76px;
  height: 34px;
  object-fit: contain;
  filter: drop-shadow(0 1px 3px rgba(255, 255, 255, 0.14));
}

.wechat-dialog {
  width: min(720px, calc(100% - 32px));
  padding: 38px;
  color: var(--ink);
  border: 0;
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.35);
}

.admin-login-dialog {
  width: min(420px, calc(100% - 32px));
  padding: 34px;
  color: var(--ink);
  border: 0;
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.35);
}

.admin-login-dialog::backdrop {
  background: rgba(4, 10, 20, 0.76);
}

.admin-login-form h2 {
  margin-bottom: 10px;
  font-size: 30px;
}

.admin-login-form > p:not(.eyebrow):not(.admin-login-error) {
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 14px;
}

.admin-login-form label {
  display: block;
  margin-bottom: 7px;
  color: var(--navy-dark);
  font-size: 13px;
  font-weight: 800;
}

.admin-login-form input {
  display: block;
  width: 100%;
  min-height: 46px;
  padding: 0 12px;
  border: 1px solid #bdc9d9;
  border-radius: 4px;
  background: var(--white);
}

.admin-login-error {
  min-height: 20px;
  margin: 8px 0 0;
  color: #a51d3b;
  font-size: 12px;
}

.admin-login-actions {
  display: flex;
  flex-wrap: wrap;
  margin-top: 16px;
  gap: 10px;
}

.button-secondary {
  color: var(--navy-dark);
  border-color: var(--line);
  background: var(--white);
}

.admin-session-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.admin-session-tools strong {
  color: #267250;
  font-size: 12px;
}

.admin-session-tools button {
  padding: 6px 9px;
  color: var(--navy);
  border: 1px solid #bdc9d9;
  border-radius: 3px;
  background: var(--white);
  cursor: pointer;
  font-size: 11px;
  font-weight: 800;
}

.admin-session-tools button:hover {
  border-color: var(--navy);
  background: var(--navy-soft);
}

.wechat-dialog[open] {
  display: grid;
  grid-template-columns: 270px 1fr;
  align-items: center;
  gap: 34px;
}

.wechat-dialog::backdrop {
  background: rgba(4, 10, 20, 0.76);
}

.wechat-dialog > img {
  width: 270px;
  border: 1px solid var(--line);
  border-radius: 4px;
}

.wechat-dialog h2 {
  margin-bottom: 12px;
  font-size: 30px;
}

.wechat-dialog p:not(.eyebrow) {
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 14px;
}

.dialog-close {
  position: absolute;
  top: 14px;
  right: 14px;
}

.mobile-actions {
  display: none;
}

.noscript-contact {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 200;
  padding: 12px;
  color: var(--white);
  background: var(--red);
  text-align: center;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 500ms ease, transform 500ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

:focus-visible {
  outline: 3px solid #f7cc45;
  outline-offset: 3px;
}

@media (max-width: 1100px) {
  .site-nav {
    position: fixed;
    top: var(--header-height);
    right: 0;
    left: 0;
    display: grid;
    height: auto;
    padding: 18px 24px 26px;
    gap: 0;
    border-top: 1px solid var(--line);
    background: var(--white);
    box-shadow: var(--shadow);
    transform: translateY(-130%);
    visibility: hidden;
    transition: transform 220ms ease, visibility 220ms ease;
  }

  .site-nav.is-open {
    transform: translateY(0);
    visibility: visible;
  }

  .site-nav a {
    padding: 13px 0;
    border-bottom: 1px solid var(--line);
    font-size: 16px;
  }

  .site-nav a::after {
    display: none;
  }

  .menu-button {
    display: inline-grid;
  }

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

  .about-layout {
    gap: 44px;
  }

  .showcase-grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .showcase-copy {
    max-width: 680px;
  }

  .video-showcase-heading {
    align-items: start;
    flex-direction: column;
    gap: 12px;
  }

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

  .video-list {
    display: flex;
    padding: 2px 2px 10px;
    overflow-x: auto;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
  }

  .video-list::-webkit-scrollbar {
    display: none;
  }

  .video-item {
    flex: 0 0 290px;
    scroll-snap-align: start;
  }

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

  .quality-section {
    grid-template-columns: 1fr 1fr;
  }

  .quality-content {
    padding: 60px 44px;
  }

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

  .contact-block:nth-child(2) {
    border-right: 0;
  }

  .qr-block {
    grid-column: 1 / -1;
    border-top: 1px solid rgba(255, 255, 255, 0.16);
  }
}

@media (max-width: 760px) {
  :root {
    --header-height: 64px;
  }

  body {
    padding-bottom: calc(64px + env(safe-area-inset-bottom));
  }

  .container {
    width: min(calc(100% - 32px), var(--container));
  }

  h2 {
    font-size: 30px;
  }

  .brand img {
    width: 84px;
    height: 38px;
  }

  .brand-copy {
    display: none;
  }

  .header-phone span {
    display: none;
  }

  .header-douyin span {
    display: none;
  }

  .header-douyin {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: 6px;
  }

  .header-phone {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: 6px;
  }

  .hero {
    height: 78svh;
    min-height: 620px;
    max-height: 680px;
  }

  .hero-media {
    object-position: 50% 22%;
  }

  .hero-overlay {
    background:
      linear-gradient(0deg, rgba(5, 17, 36, 0.9) 0%, rgba(5, 17, 36, 0.65) 58%, rgba(5, 17, 36, 0.28) 100%),
      linear-gradient(90deg, rgba(5, 17, 36, 0.5) 0%, rgba(5, 17, 36, 0.18) 100%);
  }

  .hero-content {
    padding-top: calc(var(--header-height) + 30px);
    padding-bottom: 32px;
  }

  .hero-logo {
    width: 210px;
    max-height: 88px;
    margin-bottom: 18px;
  }

  .hero h1 {
    margin-bottom: 14px;
    font-size: 36px;
  }

  .hero-lead {
    margin-bottom: 22px;
    font-size: 17px;
  }

  .hero-actions {
    width: 100%;
  }

  .hero-actions .button {
    flex: 1 1 150px;
  }

  .hero-meta {
    display: grid;
    margin-top: 22px;
    gap: 8px;
    font-size: 12px;
  }

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

  .trust-grid > div {
    min-height: 94px;
    padding: 20px 16px;
    border-bottom: 1px solid var(--line);
  }

  .trust-grid > div:nth-child(3) {
    border-left: 1px solid var(--line);
  }

  .section {
    padding: 66px 0;
  }

  .section-heading {
    grid-template-columns: 1fr;
    margin-bottom: 32px;
    gap: 18px;
  }

  .about-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .about-heading h2 {
    font-size: 30px;
  }

  .about-content {
    padding-left: 20px;
  }

  .about-content p {
    font-size: 15px;
    line-height: 1.85;
  }

  .about-highlights {
    grid-template-columns: 1fr;
    margin-top: 36px;
  }

  .about-highlights > div,
  .about-highlights > div:last-child {
    padding: 22px 18px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .about-highlights > div:last-child {
    border-bottom: 0;
  }

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

  .service-visual-heading {
    align-items: start;
    flex-direction: column;
    gap: 9px;
  }

  .service-visual-heading h3 {
    font-size: 23px;
  }

  .service-card {
    min-height: 0;
  }

  .service-visuals {
    grid-template-columns: 1fr 1fr;
  }

  .service-visuals .visual-main {
    grid-column: 1 / -1;
    aspect-ratio: 16 / 10;
  }

  .visual-note {
    margin-bottom: 32px;
    text-align: left;
  }

  .showcase-grid {
    gap: 32px;
  }

  .comparison {
    aspect-ratio: 4 / 3;
  }

  .video-showcase {
    margin-top: 4px;
    padding-top: 38px;
  }

  .video-showcase-heading h3 {
    font-size: 23px;
  }

  .video-showcase-heading > p {
    font-size: 13px;
  }

  .process-video {
    max-height: none;
  }

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

  .video-now-playing > span:first-child {
    display: none;
  }

  .video-item {
    flex-basis: min(84vw, 280px);
  }

  .process-list {
    grid-template-columns: 1fr;
  }

  .process-list li {
    display: grid;
    grid-template-columns: 34px 42px 1fr;
    min-height: 0;
    padding: 22px 20px;
    align-items: center;
    gap: 12px;
  }

  .process-list li > svg {
    width: 24px;
    margin: 0;
  }

  .process-list h3,
  .process-list p {
    grid-column: 3;
  }

  .process-list h3 {
    margin: 0;
  }

  .process-list p {
    margin-top: -8px;
  }

  .quality-section {
    grid-template-columns: 1fr;
  }

  .quality-image {
    min-height: 340px;
  }

  .quality-content {
    padding: 58px 24px 66px;
  }

  .cooperation-list {
    grid-template-columns: 1fr;
  }

  .cooperation-list article,
  .cooperation-list article:nth-child(even) {
    border-right: 0;
  }

  .cooperation-cta {
    align-items: stretch;
    flex-direction: column;
    padding: 24px;
  }

  .contact-section {
    padding: 66px 0;
  }

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

  .contact-block,
  .contact-block:nth-child(2) {
    min-height: 210px;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  }

  .contact-block:last-child {
    border-bottom: 0;
  }

  .qr-block {
    grid-column: auto;
    grid-template-columns: 120px minmax(0, 1fr);
  }

  .qr-block img {
    width: 120px;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-footer {
    padding-bottom: 34px;
  }

  .wechat-dialog {
    padding: 52px 22px 28px;
  }

  .admin-login-dialog {
    padding: 52px 22px 28px;
  }

  .admin-login-actions .button {
    flex: 1 1 140px;
  }

  .wechat-dialog[open] {
    grid-template-columns: 1fr;
    gap: 18px;
    text-align: center;
  }

  .wechat-dialog > img {
    width: min(230px, 76vw);
    margin-inline: auto;
  }

  .wechat-dialog .button {
    width: 100%;
  }

  .mobile-actions {
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 90;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    min-height: calc(64px + env(safe-area-inset-bottom));
    padding-bottom: env(safe-area-inset-bottom);
    border-top: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 -8px 24px rgba(8, 26, 56, 0.1);
  }

  .mobile-actions a,
  .mobile-actions button {
    display: grid;
    padding: 8px 4px 6px;
    place-items: center;
    gap: 2px;
    color: var(--navy-dark);
    border: 0;
    border-right: 1px solid var(--line);
    background: transparent;
    font-size: 11px;
    font-weight: 800;
    cursor: pointer;
  }

  .mobile-actions svg {
    width: 21px;
    color: var(--red);
  }
}

@media (max-width: 380px) {
  .hero h1 {
    font-size: 32px;
  }

  .hero-lead {
    font-size: 15px;
  }

  .hero-logo {
    width: 190px;
  }

  .qr-block {
    grid-template-columns: 100px minmax(0, 1fr);
    padding-inline: 20px;
  }

  .qr-block img {
    width: 100px;
  }

  .contact-block > a:not(.text-link),
  .contact-block > strong,
  .qr-block strong {
    font-size: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

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