:root {
  --ink: #111111;
  --muted: #666c75;
  --soft: #8a9099;
  --line: rgba(17, 17, 17, 0.1);
  --blue: #0071e3;
  --blue-dark: #005bb8;
  --paper: #f5f5f7;
  --white: #ffffff;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
  letter-spacing: 0;
}

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

a,
button {
  color: inherit;
  font: inherit;
}

a {
  text-decoration: none;
}

button {
  border: 0;
  cursor: pointer;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 5vw, 72px);
  color: var(--white);
  transition: background 260ms ease, color 260ms ease, box-shadow 260ms ease, padding 260ms ease;
}

.site-header.is-scrolled {
  padding-block: 12px;
  color: var(--ink);
  background: rgba(245, 245, 247, 0.84);
  border-bottom: 1px solid rgba(17, 17, 17, 0.08);
  box-shadow: 0 12px 38px rgba(0, 0, 0, 0.06);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  flex: 0 0 auto;
  color: var(--white);
  background: linear-gradient(145deg, #1d1d1f, #0071e3);
  border-radius: 50%;
  font-size: 22px;
  font-weight: 800;
}

.brand-copy {
  display: grid;
  gap: 3px;
  line-height: 1.1;
}

.brand-copy strong {
  font-size: 17px;
  font-weight: 800;
}

.brand-copy small {
  color: currentColor;
  font-size: 12px;
  opacity: 0.72;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.3vw, 32px);
  font-size: 14px;
}

.site-nav a {
  opacity: 0.86;
}

.site-nav a:hover {
  color: var(--blue);
  opacity: 1;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 17px;
  color: var(--white);
  background: var(--blue);
  border-radius: 999px;
  opacity: 1;
}

.site-header.is-scrolled .nav-cta {
  color: var(--white);
}

.hero {
  position: relative;
  display: grid;
  min-height: 100svh;
  overflow: hidden;
  align-items: center;
  padding: 140px clamp(20px, 6vw, 86px) 98px;
  color: var(--white);
  background: #050507;
}

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

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.84) 0%, rgba(0, 0, 0, 0.48) 44%, rgba(0, 0, 0, 0.1) 100%),
    linear-gradient(180deg, rgba(0, 0, 0, 0.12) 0%, rgba(245, 245, 247, 0.92) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 980px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.showroom-copy h2,
.work-copy h2,
.contact h2,
.about-copy h2 {
  margin: 0;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 920px;
  font-size: clamp(52px, 7vw, 104px);
  line-height: 1.02;
}

.hero-subtitle {
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.94);
  font-size: clamp(24px, 3vw, 42px);
  font-weight: 700;
  line-height: 1.24;
}

.hero-text {
  max-width: 650px;
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.8;
}

.hero-actions,
.showroom-actions,
.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-actions {
  margin-top: 38px;
}

.primary-btn,
.secondary-btn,
.ghost-btn,
.card-btn,
.contact-links a,
.contact-links button,
.float-consult a,
.float-consult button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
  white-space: nowrap;
}

.primary-btn {
  color: var(--white);
  background: var(--blue);
  box-shadow: 0 14px 38px rgba(0, 113, 227, 0.28);
}

.primary-btn:hover,
.card-btn:hover,
.float-consult a:hover,
.float-consult button:hover {
  background: var(--blue-dark);
}

.secondary-btn {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.32);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
}

.ghost-btn {
  color: rgba(255, 255, 255, 0.64);
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
  cursor: not-allowed;
}

.section {
  padding: 96px clamp(20px, 6vw, 86px);
}

.section-heading,
.showroom-copy,
.about-copy {
  max-width: 780px;
}

.section-heading h2,
.showroom-copy h2,
.work-copy h2,
.contact h2,
.about-copy h2 {
  font-size: clamp(32px, 4.6vw, 60px);
  line-height: 1.12;
}

.intro-grid,
.brand-list,
.process-list,
.package-grid,
.case-grid {
  display: grid;
  gap: 18px;
  margin-top: 42px;
}

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

.intro-grid article,
.brand-list article,
.process-list li,
.package-grid article,
.case-grid figure,
.profile-card {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow);
}

.intro-grid article,
.process-list li,
.package-grid article {
  padding: 28px;
}

.intro-grid span {
  color: var(--blue);
  font-size: 21px;
  font-weight: 800;
}

.intro-grid p,
.brand-list p,
.process-list p,
.showroom-copy p,
.work-copy p,
.contact p,
.about-copy p,
.package-grid dd,
.case-grid span {
  color: var(--muted);
  line-height: 1.8;
}

.about {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: clamp(28px, 6vw, 80px);
  align-items: center;
}

.about-copy h3 {
  margin: 26px 0 12px;
  font-size: clamp(24px, 3vw, 36px);
}

.profile-card {
  overflow: hidden;
  margin: 0;
}

.profile-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  object-position: center;
  background: linear-gradient(145deg, #eceef2, #ffffff);
}

.profile-card figcaption {
  padding: 18px 20px 22px;
  font-weight: 800;
}

.showroom {
  padding: 100px clamp(20px, 6vw, 86px);
  color: var(--white);
  background: #111111;
}

.showroom-top {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
}

.showroom-copy p {
  margin: 10px 0 0;
  color: rgba(255, 255, 255, 0.72);
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 46px;
}

.photo-grid figure {
  overflow: hidden;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.08);
}

.photo-grid img {
  width: 100%;
  height: clamp(260px, 31vw, 450px);
  object-fit: cover;
}

.photo-grid figcaption {
  padding: 17px 20px 20px;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 800;
}

.package-grid h3 {
  margin: 0;
  font-size: clamp(23px, 2.4vw, 30px);
}

.price {
  margin: 18px 0 24px;
  color: var(--blue);
  font-size: 24px;
  font-weight: 900;
}

.package-grid dl {
  display: grid;
  gap: 18px;
  margin: 0 0 28px;
}

.package-grid dt {
  margin-bottom: 6px;
  color: var(--ink);
  font-weight: 800;
}

.package-grid dd {
  margin: 0;
}

.card-btn {
  width: 100%;
  color: var(--white);
  background: var(--blue);
}

.card-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.card-btn-dark {
  background: #1d1d1f;
}

.case-grid figure {
  overflow: hidden;
  margin: 0;
}

.case-grid img {
  width: 100%;
  height: clamp(230px, 26vw, 380px);
  object-fit: cover;
}

.case-grid figcaption {
  display: grid;
  gap: 9px;
  padding: 19px 21px 23px;
}

.case-grid strong {
  color: var(--ink);
  font-size: 21px;
}

.case-grid span {
  font-size: 15px;
}

.brand-list article {
  display: grid;
  grid-template-rows: 330px auto;
  overflow: hidden;
}

.brand-list h3 {
  margin: 0 0 14px;
  font-size: 25px;
}

.brand-list img {
  width: 100%;
  height: 330px;
  object-fit: contain;
  padding: 18px;
  background: #eef0f3;
}

.brand-list article:nth-child(1) img {
  object-fit: cover;
  object-position: center;
  padding: 0;
  background: #f5f5f7;
}

.brand-list article:nth-child(2) img {
  object-fit: cover;
  padding: 0;
  background: #111111;
}

.brand-list article:nth-child(3) img {
  object-fit: cover;
  object-position: center;
  padding: 0;
  background: #151515;
}

.brand-list article > div {
  padding: 25px 27px 29px;
}

.work-band {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 48px;
  align-items: center;
  padding: 100px clamp(20px, 6vw, 86px);
  color: var(--white);
  background: #050505;
}

.work-copy {
  max-width: 720px;
}

.work-copy p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 18px;
}

.work-cards {
  display: grid;
  gap: 14px;
}

.work-cards article {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 88px;
  padding: 23px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.08);
}

.work-cards span {
  color: #62a8ff;
  font-size: 30px;
  font-weight: 900;
}

.work-cards p {
  margin: 0;
  color: rgba(255, 255, 255, 0.76);
}

.process-list {
  padding: 0;
  list-style: none;
}

.process-list span {
  color: var(--blue);
  font-weight: 900;
}

.process-list strong {
  display: block;
  margin-top: 18px;
  font-size: 23px;
}

.contact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 82px clamp(20px, 6vw, 86px);
  color: var(--white);
  background: #111111;
}

.contact-copy {
  max-width: 760px;
}

.contact p {
  color: rgba(255, 255, 255, 0.72);
}

.contact-links {
  margin-top: 28px;
}

.contact-links a,
.contact-links button {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
}

.wechat-card {
  width: min(238px, 100%);
  margin: 0;
  padding: 13px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.09);
  box-shadow: 0 22px 68px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(16px);
}

.wechat-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  border-radius: 14px;
  background: var(--white);
  padding: 8px;
}

.wechat-card figcaption {
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 15px;
  font-weight: 800;
  text-align: center;
}

.float-consult {
  position: fixed;
  right: clamp(14px, 2.8vw, 28px);
  bottom: clamp(16px, 3vw, 30px);
  z-index: 40;
  display: grid;
  gap: 10px;
}

.float-consult a,
.float-consult button {
  min-width: 116px;
  color: var(--white);
  background: var(--blue);
  box-shadow: 0 12px 34px rgba(0, 113, 227, 0.28);
}

.float-consult button {
  background: #1d1d1f;
}

.wechat-modal {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: none;
  place-items: center;
  padding: 22px;
  background: rgba(0, 0, 0, 0.46);
  backdrop-filter: blur(12px);
}

.wechat-modal.is-open {
  display: grid;
}

.wechat-dialog {
  position: relative;
  width: min(330px, 100%);
  padding: 22px;
  border-radius: 24px;
  background: var(--white);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.22);
  text-align: center;
}

.wechat-dialog img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  border-radius: 16px;
  background: var(--paper);
  padding: 8px;
}

.wechat-dialog p {
  margin: 14px 0 0;
  color: var(--ink);
  font-weight: 800;
}

.modal-close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 34px;
  height: 34px;
  color: var(--ink);
  background: rgba(17, 17, 17, 0.08);
  border-radius: 50%;
  font-size: 24px;
  line-height: 1;
}

@media (max-width: 960px) {
  .site-nav a:not(.nav-cta) {
    display: none;
  }

  .intro-grid,
  .brand-list,
  .process-list,
  .package-grid,
  .case-grid,
  .photo-grid,
  .about,
  .work-band {
    grid-template-columns: 1fr;
  }

  .showroom-top,
  .contact {
    align-items: flex-start;
    flex-direction: column;
  }

  .showroom-actions {
    margin-top: 10px;
  }
}

.site-footer {
  display: block;
  width: 100%;
  max-width: none;
  margin: 0 auto;
  padding: 26px 20px 38px;
  box-sizing: border-box;
  clear: both;
  text-align: center;
}

.site-footer a {
  display: inline-block;
  margin: 0 auto;
  color: rgba(33, 48, 71, 0.64);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.site-footer a:hover {
  color: #1f5fbf;
}

@media (max-width: 620px) {
  .site-header {
    padding: 14px 16px;
  }

  .brand-copy small {
    display: none;
  }

  .brand-copy strong {
    font-size: 15px;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
    font-size: 20px;
  }

  .nav-cta {
    min-height: 34px;
    padding-inline: 13px;
  }

  .hero {
    min-height: 92svh;
    padding: 118px 20px 82px;
  }

  .hero h1 {
    font-size: 46px;
  }

  .hero-subtitle {
    font-size: 25px;
  }

  .section,
  .showroom,
  .work-band,
  .contact {
    padding: 72px 20px;
  }

  .primary-btn,
  .secondary-btn,
  .ghost-btn {
    width: 100%;
  }

  .float-consult {
    right: 12px;
    bottom: 12px;
  }

  .float-consult a,
  .float-consult button {
    min-width: 98px;
    min-height: 42px;
    padding-inline: 14px;
    font-size: 13px;
  }

  .site-footer {
    width: 100%;
    max-width: none;
    margin: 0 auto;
    padding: 26px 20px 118px;
    box-sizing: border-box;
    text-align: center;
  }
}