:root {
  --ink: #18222f;
  --muted: #5d6876;
  --line: #dfe6ec;
  --paper: #ffffff;
  --soft: #f5f8fb;
  --teal: #0d8b8c;
  --teal-dark: #096668;
  --amber: #c78a18;
  --leaf: #557a45;
  --shadow: 0 18px 50px rgba(24, 34, 47, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
  background: var(--paper);
  line-height: 1.6;
}

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

button,
input {
  font: inherit;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(13, 139, 140, 0.36);
  outline-offset: 3px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 0 6vw;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  white-space: nowrap;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: #fff;
  background: var(--teal);
  border-radius: 6px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
}

.nav a:hover,
.header-call:hover {
  color: var(--teal-dark);
}

.header-call {
  padding: 10px 16px;
  color: var(--teal-dark);
  border: 1px solid rgba(13, 139, 140, 0.35);
  border-radius: 6px;
  white-space: nowrap;
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: 620px;
  background: #eaf2f4;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.94) 0%, rgba(255, 255, 255, 0.84) 43%, rgba(255, 255, 255, 0.22) 72%),
    url("assets/hero-blueprint.svg") center right / cover no-repeat;
}

.hero-inner {
  position: relative;
  max-width: 900px;
  padding: 104px 6vw 72px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(36px, 5.2vw, 58px);
  line-height: 1.12;
  letter-spacing: 0;
  font-weight: 800;
}

h1 span {
  display: block;
}

.hero-title-sub {
  font-size: 0.82em;
  line-height: 1.06;
}

.hero-copy {
  max-width: 680px;
  margin: 24px 0 0;
  color: #344255;
  font-size: 18px;
}

.hero-contact-row {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 14px;
  margin-top: 28px;
}

.phone-highlight {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  padding: 16px 22px;
  color: #fff;
  background: var(--teal-dark);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.phone-highlight span {
  color: rgba(255, 255, 255, 0.78);
  font-size: 15px;
}

.phone-highlight strong {
  font-size: clamp(26px, 4vw, 38px);
  line-height: 1;
  letter-spacing: 0;
}

.hero-wechat {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 82px;
  padding: 10px 14px 10px 10px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero-wechat img {
  width: 72px;
  height: 72px;
  object-fit: cover;
  border-radius: 6px;
}

.hero-wechat span {
  display: grid;
  gap: 2px;
}

.hero-wechat strong {
  color: var(--teal-dark);
  font-size: 18px;
}

.hero-wechat em {
  color: var(--muted);
  font-style: normal;
  font-size: 13px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.btn {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 6px;
  cursor: pointer;
}

.btn.primary {
  color: #fff;
  background: var(--teal);
}

.btn.primary:hover {
  background: var(--teal-dark);
}

.btn.secondary {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.78);
  border-color: var(--line);
}

.btn.ghost {
  color: var(--teal-dark);
  background: rgba(255, 255, 255, 0.88);
  border-color: rgba(13, 139, 140, 0.28);
}

.btn.ghost:hover {
  background: #fff;
  border-color: rgba(13, 139, 140, 0.58);
}

.hero-facts {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 0.9fr) minmax(260px, 1.35fr);
  max-width: 880px;
  margin: 48px 0 0;
  border: 1px solid rgba(24, 34, 47, 0.1);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.82);
}

.hero-facts div {
  padding: 20px;
  border-right: 1px solid rgba(24, 34, 47, 0.1);
}

.hero-facts div:last-child {
  border-right: 0;
}

.hero-facts dt {
  color: var(--muted);
  font-size: 13px;
}

.hero-facts dd {
  margin: 6px 0 0;
  font-weight: 700;
  line-height: 1.5;
}

.quick-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.quick-strip div {
  padding: 26px 6vw;
  background: var(--paper);
}

.quick-strip strong {
  display: block;
  margin-bottom: 6px;
}

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

.section {
  padding: 58px 6vw;
}

.muted {
  background: var(--soft);
}

.section-head {
  max-width: 760px;
  margin-bottom: 36px;
}

.section-head h2,
.visual-copy h2,
.contact-copy h2 {
  margin: 0;
  font-size: clamp(30px, 5vw, 46px);
  line-height: 1.15;
  letter-spacing: 0;
}

.section-head p:not(.eyebrow),
.visual-copy p,
.contact-copy p {
  margin: 16px 0 0;
  color: var(--muted);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.service-card,
.price-item,
.case-list article {
  min-height: 180px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.service-index {
  color: var(--amber);
  font-size: 13px;
  font-weight: 700;
}

.service-card h3,
.price-item h3,
.case-list h3,
.process-list h3 {
  margin: 10px 0 8px;
  font-size: 20px;
  letter-spacing: 0;
}

.service-card p,
.price-item p,
.deliver-item p,
.case-list p,
.process-list p {
  margin: 0;
  color: var(--muted);
}

.deliver-section {
  background: linear-gradient(180deg, #fff 0%, #f7fbfa 100%);
}

.deliver-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.deliver-item {
  min-height: 190px;
  padding: 24px;
  border: 1px solid rgba(13, 139, 140, 0.18);
  border-radius: 8px;
  background: var(--paper);
}

.deliver-item h3 {
  margin: 0 0 10px;
  font-size: 20px;
  letter-spacing: 0;
}

.deliver-item::before {
  display: block;
  width: 38px;
  height: 4px;
  margin-bottom: 22px;
  background: var(--teal);
  border-radius: 999px;
  content: "";
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-list li {
  min-height: 220px;
  padding: 26px;
  border-left: 4px solid var(--teal);
  background: var(--paper);
}

.process-list span {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: #fff;
  background: var(--leaf);
  border-radius: 50%;
  font-weight: 700;
}

.visual-section {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: 46px;
  align-items: center;
}

.case-list {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

.case-list article {
  min-height: auto;
}

.plan-figure {
  margin: 0;
}

.plan-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.plan-figure figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
  text-align: right;
}

.price-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.notice {
  margin-top: 18px;
  padding: 20px 24px;
  color: #4a3610;
  background: #fff5df;
  border: 1px solid #ead3a2;
  border-radius: 8px;
}

.faq-list {
  display: grid;
  gap: 12px;
  max-width: 940px;
}

details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

summary {
  padding: 18px 22px;
  cursor: pointer;
  font-weight: 700;
}

details p {
  margin: 0;
  padding: 0 22px 20px;
  color: var(--muted);
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  gap: 36px;
  align-items: center;
  padding: 60px 6vw;
  color: #fff;
  background: #1e352f;
}

.contact-section .eyebrow {
  color: #94ded9;
}

.contact-copy p {
  color: rgba(255, 255, 255, 0.74);
}

.contact-panel {
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.contact-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.contact-line > :nth-child(2) {
  margin-left: auto;
}

.contact-line span {
  color: rgba(255, 255, 255, 0.72);
}

.contact-line a,
.contact-line button,
.contact-line strong {
  color: #fff;
  font-weight: 700;
}

.contact-line button {
  padding: 6px 10px;
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 6px;
  cursor: pointer;
}

.contact-line button:hover {
  background: rgba(255, 255, 255, 0.18);
}

.qr-box {
  display: grid;
  place-items: center;
  margin-top: 24px;
  padding: 18px;
  background: #fff;
  border-radius: 8px;
}

.qr-box img {
  display: block;
  width: min(220px, 100%);
  height: auto;
}

.footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding: 26px 6vw;
  color: var(--muted);
  font-size: 14px;
  border-top: 1px solid var(--line);
}

.footer p {
  margin: 0;
}

.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 30;
  padding: 12px 16px;
  color: #fff;
  background: var(--ink);
  border-radius: 6px;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.mobile-cta {
  display: none;
}

@media (max-width: 920px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
    padding: 16px 5vw;
  }

  .nav {
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .header-call {
    position: absolute;
    top: 16px;
    right: 5vw;
  }

  .hero-inner {
    padding: 86px 5vw 56px;
  }

  .hero-facts,
  .quick-strip,
  .service-grid,
  .deliver-grid,
  .process-list,
  .price-grid,
  .visual-section,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .hero-facts div {
    border-right: 0;
    border-bottom: 1px solid rgba(24, 34, 47, 0.1);
  }

  .hero-facts div:last-child {
    border-bottom: 0;
  }

  .quick-strip div,
  .section,
  .contact-section {
    padding-left: 5vw;
    padding-right: 5vw;
  }
}

@media (max-width: 560px) {
  body {
    padding-bottom: 72px;
  }

  .header-call {
    display: none;
  }

  .nav {
    gap: 16px;
    font-size: 13px;
  }

  .hero {
    min-height: auto;
  }

  .hero-bg {
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 255, 255, 0.88) 60%, rgba(255, 255, 255, 0.72) 100%),
      url("assets/hero-blueprint.svg") center / cover no-repeat;
  }

  .hero-copy {
    font-size: 16px;
  }

  .btn {
    width: 100%;
  }

  .phone-highlight {
    width: 100%;
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .hero-wechat {
    width: 100%;
  }

  .section {
    padding-top: 46px;
    padding-bottom: 46px;
  }

  .service-card,
  .price-item,
  .process-list li {
    min-height: auto;
  }

  .contact-line {
    align-items: flex-start;
    flex-direction: column;
  }

  .contact-line > :nth-child(2) {
    margin-left: 0;
  }

  .toast {
    right: 5vw;
    bottom: 82px;
    left: 5vw;
    text-align: center;
  }

  .mobile-cta {
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 25;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    padding: 8px 5vw calc(8px + env(safe-area-inset-bottom));
    background: rgba(255, 255, 255, 0.94);
    border-top: 1px solid var(--line);
    box-shadow: 0 -10px 28px rgba(24, 34, 47, 0.12);
    backdrop-filter: blur(14px);
  }

  .mobile-cta a {
    display: grid;
    min-height: 48px;
    place-items: center;
    color: #fff;
    background: var(--teal);
    border-radius: 6px;
    font-weight: 700;
  }

  .mobile-cta a:first-child {
    background: var(--teal-dark);
  }
}