/* ===== 南通德鑫 - Apple inspired visual system ===== */

:root {
  --ink: #111827;
  --ink-soft: #2f3747;
  --muted: #697386;
  --muted-2: #8b95a7;
  --line: #e4e7ec;
  --line-strong: #d7dce5;
  --paper: #ffffff;
  --paper-soft: #f5f5f7;
  --paper-warm: #fbfaf7;
  --navy: #172033;
  --navy-2: #24324b;
  --brand: #7d1e2c;
  --brand-soft: #a83343;
  --gold: #b98932;
  --gold-2: #d5b66d;
  --sapphire: #1f5fbf;
  --sapphire-deep: #153a72;
  --platinum: #7d8da6;
  --green: #1f8a63;
  --radius: 8px;
  --shadow-sm: 0 1px 2px rgba(17, 24, 39, 0.05), 0 1px 1px rgba(17, 24, 39, 0.035);
  --shadow-md: 0 18px 46px rgba(17, 24, 39, 0.095);
  --shadow-lg: 0 32px 76px rgba(17, 24, 39, 0.145);
  --blur-bg: rgba(255, 255, 255, 0.78);
  --transition: 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background: var(--paper-soft);
}

body {
  min-width: 320px;
  color: var(--ink);
  font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Segoe UI", sans-serif;
  line-height: 1.62;
  letter-spacing: 0;
  background:
    linear-gradient(90deg, rgba(31, 95, 191, 0.035), transparent 24%, rgba(185, 137, 50, 0.028) 62%, transparent 82%),
    linear-gradient(180deg, #ffffff 0%, #f7f9fd 32%, #ffffff 64%, #f5f7fb 100%);
  overflow-x: hidden;
  padding-bottom: 72px;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

section {
  position: relative;
  scroll-margin-top: 86px;
}

.container {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

/* ===== Typography ===== */
.section-header {
  max-width: 760px;
  margin: 0 auto 48px;
  text-align: center;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  margin-bottom: 14px;
  padding: 5px 13px;
  border: 1px solid rgba(185, 137, 50, 0.24);
  border-radius: 999px;
  color: var(--gold);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.section-title,
.about-text h2 {
  color: var(--ink);
  font-size: 2.65rem;
  font-weight: 900;
  line-height: 1.12;
  text-wrap: balance;
}

.section-title {
  margin-bottom: 15px;
}

.section-desc {
  max-width: 680px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.72;
  text-wrap: balance;
}

.hero-subtitle,
.hero-notice,
.service-card > p,
.service-features li,
.step-content p,
.advantage-item p,
.about-desc,
.value-item p,
.partners-note,
.contact-card p,
.contact-card a,
.disclaimer-box > p,
.disclaimer-item p,
.disclaimer-footer-text {
  text-wrap: pretty;
}

.service-card > p,
.service-features li,
.step-content p,
.advantage-item p,
.value-item p,
.partners-note,
.contact-card p,
.contact-card a {
  text-wrap: balance;
}

.text-gold {
  color: var(--sapphire);
}

/* ===== Buttons ===== */
.btn,
.floating-call-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 26px;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
}

.btn-primary {
  color: #ffffff;
  background: linear-gradient(135deg, var(--sapphire), var(--navy) 72%);
  box-shadow: 0 16px 34px rgba(31, 95, 191, 0.20), inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 44px rgba(23, 32, 51, 0.22);
}

.btn-outline {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.72);
  border-color: rgba(17, 24, 39, 0.12);
  box-shadow: 0 10px 28px rgba(17, 24, 39, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
}

.btn-outline:hover {
  transform: translateY(-2px);
  border-color: rgba(185, 137, 50, 0.42);
  box-shadow: 0 20px 42px rgba(17, 24, 39, 0.12);
}

.btn-full {
  width: 100%;
}

.btn-lg {
  min-height: 56px;
  padding-inline: 34px;
  font-size: 1.05rem;
}

/* ===== Header ===== */
.header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  background: rgba(245, 245, 247, 0.72);
  border-bottom: 1px solid rgba(17, 24, 39, 0.06);
  backdrop-filter: saturate(180%) blur(20px);
  transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.86);
  border-bottom-color: rgba(17, 24, 39, 0.1);
  box-shadow: 0 12px 34px rgba(17, 24, 39, 0.08);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 22px;
}

.logo {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 10px;
  min-width: 258px;
}

.logo > div {
  display: flex;
  align-items: center;
  min-width: 0;
  white-space: nowrap;
}

.about-card-logo,
.footer-logo-img {
  object-fit: contain;
}

.logo-img {
  width: 44px;
  height: 26px;
  object-fit: contain;
}

.logo h1 {
  color: var(--ink);
  font-size: 0.94rem;
  font-weight: 800;
  line-height: 1;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 2px;
  min-width: 0;
}

.nav a {
  position: relative;
  padding: 8px 10px;
  border-radius: 999px;
  color: rgba(17, 24, 39, 0.68);
  font-size: 0.82rem;
  font-weight: 600;
  transition: color var(--transition), background var(--transition);
}

.nav a:hover,
.nav a.active {
  color: var(--ink);
  background: rgba(17, 24, 39, 0.06);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border: 1px solid rgba(17, 24, 39, 0.08);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.74);
  cursor: pointer;
}

.nav-toggle span {
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--ink);
  transition: transform var(--transition), opacity var(--transition);
}

/* ===== Hero ===== */
.hero {
  display: flex;
  align-items: center;
  min-height: min(840px, calc(100vh - 42px));
  padding: 104px 0 88px;
  overflow: hidden;
  background:
    linear-gradient(105deg, rgba(31, 95, 191, 0.105), transparent 32%, rgba(185, 137, 50, 0.055) 76%, transparent 100%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(248, 250, 253, 0.98) 58%, rgba(242, 246, 251, 0.92) 100%);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  opacity: 0.32;
  background-image:
    linear-gradient(rgba(23, 32, 51, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 32, 51, 0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, 0.72) 22%, #000 50%, rgba(0, 0, 0, 0.72) 78%, transparent 100%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.hero-title {
  margin-bottom: 20px;
  color: var(--ink);
  font-size: 4.55rem;
  font-weight: 900;
  line-height: 1.04;
  text-wrap: balance;
}

.hero-title .text-gold {
  background:
    linear-gradient(102deg, #0f172a 0%, var(--sapphire-deep) 38%, var(--sapphire) 70%, #b58b46 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 18px 38px rgba(31, 95, 191, 0.10);
}

.hero-subtitle {
  max-width: 720px;
  margin: 0 auto 16px;
  color: var(--ink-soft);
  font-size: 1.08rem;
  font-weight: 500;
  line-height: 1.72;
}

.hero-notice {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: max-content;
  max-width: min(100%, 760px);
  margin-bottom: 34px;
  padding: 10px 14px;
  border: 1px solid rgba(185, 137, 50, 0.22);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.66);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  font-size: 0.9rem;
  line-height: 1.45;
  white-space: nowrap;
}

.hero-disclaimer-link {
  color: var(--brand);
  font-weight: 800;
  text-decoration: underline;
  text-decoration-color: rgba(125, 30, 44, 0.24);
  text-underline-offset: 3px;
  white-space: nowrap;
}

.hero-disclaimer-link:hover {
  color: var(--gold);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 560px;
  margin: 0 auto 24px;
  overflow: hidden;
  border: 1px solid rgba(17, 24, 39, 0.08);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(18px);
}

.stat-item {
  padding: 18px 18px;
  text-align: center;
}

.stat-item + .stat-item {
  border-left: 1px solid rgba(17, 24, 39, 0.08);
}

.stat-number {
  display: block;
  color: var(--ink);
  font-size: 2.18rem;
  font-weight: 900;
  line-height: 1;
}

.stat-label {
  display: block;
  margin-top: 7px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 600;
}

.hero-cta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 13px;
}

.hero-wave {
  display: none;
}

/* ===== Services ===== */
.services,
.advantages,
.contact {
  padding: 96px 0;
  background: var(--paper);
}

.services::before,
.contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(245, 245, 247, 0.64), rgba(255, 255, 255, 0) 38%),
    linear-gradient(90deg, rgba(185, 137, 50, 0.05), transparent 36%, rgba(23, 32, 51, 0.04));
  pointer-events: none;
}

.services .container,
.advantages .container,
.contact .container,
.process .container,
.about .container,
.partners .container,
.faq .container,
.disclaimer .container {
  position: relative;
  z-index: 1;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 18px;
}

.service-card {
  --service-a: var(--sapphire);
  --service-b: var(--gold);
  --service-soft: rgba(31, 95, 191, 0.10);
  --feature-mark: var(--sapphire);
  position: relative;
  min-height: 304px;
  padding: 26px;
  overflow: hidden;
  border: 1px solid rgba(17, 24, 39, 0.075);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, var(--service-soft), transparent 48%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.99), rgba(250, 251, 253, 0.94)),
    var(--paper);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.service-card:nth-child(1) {
  --service-a: var(--sapphire);
  --service-b: var(--gold);
  --service-soft: rgba(31, 95, 191, 0.12);
}

.service-card:nth-child(2) {
  --service-a: var(--sapphire-deep);
  --service-b: var(--green);
  --service-soft: rgba(21, 58, 114, 0.11);
}

.service-card:nth-child(3) {
  --service-a: #2f5f9f;
  --service-b: var(--platinum);
  --service-soft: rgba(47, 95, 159, 0.10);
}

.service-card:nth-child(4) {
  --service-a: var(--navy-2);
  --service-b: var(--gold);
  --service-soft: rgba(36, 50, 75, 0.10);
}

.service-card:nth-child(5) {
  --service-a: #394963;
  --service-b: var(--gold);
  --service-soft: rgba(57, 73, 99, 0.10);
}

.service-card:nth-child(-n + 2) {
  grid-column: span 3;
  min-height: 322px;
}

.service-card:nth-child(n + 3) {
  grid-column: span 2;
  min-height: 296px;
}

.service-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: linear-gradient(90deg, var(--service-a), color-mix(in srgb, var(--service-a), var(--service-b) 42%));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.service-card::after {
  content: "";
  position: absolute;
  inset: auto 18px 18px auto;
  width: 104px;
  height: 104px;
  border: 1px solid color-mix(in srgb, var(--service-a), transparent 76%);
  border-radius: var(--radius);
  background: linear-gradient(145deg, color-mix(in srgb, var(--service-a), transparent 92%), rgba(23, 32, 51, 0.035));
  transform: rotate(8deg);
  opacity: 0.48;
}

.service-card:hover {
  transform: translateY(-5px);
  border-color: color-mix(in srgb, var(--service-a), transparent 62%);
  background: #ffffff;
  box-shadow: var(--shadow-md);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 66px;
  height: 66px;
  margin-bottom: 20px;
  border: 1px solid color-mix(in srgb, var(--service-a), transparent 78%);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #ffffff, color-mix(in srgb, var(--service-a), white 93%));
  box-shadow: 0 12px 28px color-mix(in srgb, var(--service-a), transparent 84%);
}

.service-icon-img {
  width: 58px;
  height: 58px;
  object-fit: contain;
}

.service-card h3 {
  margin-bottom: 11px;
  color: color-mix(in srgb, var(--ink), var(--service-a) 12%);
  font-size: 1.16rem;
  font-weight: 900;
  line-height: 1.25;
  text-wrap: balance;
}

.service-card > p {
  position: relative;
  z-index: 1;
  max-width: 34em;
  margin-bottom: 19px;
  color: var(--muted);
  font-size: 0.91rem;
  line-height: 1.7;
}

.service-features {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 9px;
  padding-top: 1px;
}

.service-features li {
  position: relative;
  padding-left: 28px;
  color: color-mix(in srgb, var(--ink-soft), var(--navy) 12%);
  font-size: 0.86rem;
  font-weight: 700;
  line-height: 1.55;
}

.service-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.77em;
  width: 16px;
  height: 16px;
  border: 1px solid rgba(125, 141, 166, 0.34);
  border-radius: 50%;
  background: linear-gradient(180deg, #ffffff, #f2f5f9);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.92),
    0 5px 12px rgba(17, 24, 39, 0.08),
    0 0 0 4px rgba(31, 95, 191, 0.045);
  transform: translateY(-50%);
}

.service-features li::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 0.72em;
  width: 5px;
  height: 8px;
  border: solid var(--feature-mark);
  border-width: 0 1.7px 1.7px 0;
  transform: translateY(-50%) rotate(45deg);
}

/* ===== Process ===== */
.process {
  padding: 96px 0;
  background:
    linear-gradient(180deg, #f6f7f9 0%, #ffffff 100%);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  align-items: stretch;
}

.step {
  position: relative;
  min-height: 230px;
  padding: 28px 24px;
  border: 1px solid rgba(17, 24, 39, 0.08);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(16px);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.step:hover {
  transform: translateY(-4px);
  border-color: rgba(36, 50, 75, 0.18);
  box-shadow: var(--shadow-md);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin-bottom: 56px;
  border: 1px solid rgba(17, 24, 39, 0.08);
  border-radius: 50%;
  color: var(--ink);
  background: linear-gradient(180deg, #ffffff, #edf0f5);
  box-shadow: 0 14px 32px rgba(17, 24, 39, 0.10);
  font-size: 1.05rem;
  font-weight: 900;
}

.step-content h3 {
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 1.06rem;
  font-weight: 900;
  line-height: 1.24;
  text-wrap: balance;
}

.step-content p {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.62;
}

.step-arrow {
  display: none;
}

.step:not(:last-of-type)::after {
  content: "";
  position: absolute;
  top: 56px;
  left: 92px;
  right: -28px;
  height: 1px;
  background: linear-gradient(90deg, rgba(185, 137, 50, 0.38), rgba(185, 137, 50, 0));
}

/* ===== Advantages ===== */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.advantage-item {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  min-height: 196px;
  padding: 28px 24px;
  border: 1px solid rgba(17, 24, 39, 0.045);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.42);
  text-align: center;
  transition: transform var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.advantage-item:hover {
  transform: translateY(-4px);
  border-color: rgba(17, 24, 39, 0.08);
  background: #ffffff;
  box-shadow: var(--shadow-md);
}

.advantage-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  margin: 0 auto 18px;
  border: 1px solid rgba(185, 137, 50, 0.2);
  border-radius: var(--radius);
  color: var(--gold);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(245, 245, 247, 0.8));
}

.advantage-icon svg {
  width: 34px;
  height: 34px;
}

.advantage-item h3 {
  margin-bottom: 7px;
  color: var(--ink);
  font-size: 1.04rem;
  font-weight: 900;
  line-height: 1.25;
  text-wrap: balance;
}

.advantage-item p {
  max-width: 23em;
  margin: 0 auto;
  color: var(--muted);
  font-size: 0.89rem;
  line-height: 1.62;
}

/* ===== About ===== */
.about {
  padding: 98px 0;
  overflow: hidden;
  background:
    linear-gradient(180deg, #f6f7f9 0%, #ffffff 100%);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  gap: 70px;
  align-items: center;
}

.about-text .section-tag {
  margin-bottom: 16px;
}

.about-text h2 {
  margin-bottom: 26px;
}

.about-desc {
  max-width: 610px;
  margin-bottom: 16px;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.78;
  text-wrap: balance;
}

.about-values {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 34px;
}

.value-item {
  min-height: 118px;
  padding: 20px;
  border: 1px solid rgba(17, 24, 39, 0.08);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow-sm);
}

.value-item strong {
  display: block;
  margin-bottom: 5px;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 900;
}

.value-item p {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

.about-visual {
  position: relative;
}

.about-visual::before {
  content: "";
  position: absolute;
  inset: -26px 28px 24px -22px;
  border: 1px solid rgba(31, 95, 191, 0.13);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(31, 95, 191, 0.095), rgba(185, 137, 50, 0.075) 54%, rgba(125, 141, 166, 0.08));
  transform: rotate(-3deg);
}

.about-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(17, 24, 39, 0.08);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, #ffffff 0%, #fbfcff 52%, #ffffff 100%);
  box-shadow: var(--shadow-lg);
}

.about-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(31, 95, 191, 0.08), rgba(185, 137, 50, 0.055), rgba(125, 141, 166, 0.06)),
    linear-gradient(rgba(17, 24, 39, 0.026) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17, 24, 39, 0.022) 1px, transparent 1px);
  background-size: auto, 52px 52px, 52px 52px;
  opacity: 0.72;
}

.about-logo-panel::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background:
    linear-gradient(90deg, var(--sapphire), var(--gold) 54%, var(--platinum));
}

.about-logo-panel,
.about-card-body {
  position: relative;
  z-index: 1;
}

.about-logo-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  padding: 18px 26px 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(248, 250, 255, 0.86));
  backdrop-filter: blur(18px);
}

.about-main-logo {
  display: block;
  width: min(455px, 92%);
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 16px 22px rgba(17, 24, 39, 0.10));
}

.about-card-body {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  overflow: hidden;
  background:
    linear-gradient(150deg, #162033 0%, #263a5b 48%, #65415b 76%, #7a2636 100%);
  border-top: 1px solid rgba(17, 24, 39, 0.08);
}

.about-stat {
  min-height: 134px;
  padding: 26px 22px;
  border-right: 1px solid rgba(255, 255, 255, 0.10);
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
}

.about-stat:nth-child(2n) {
  border-right: 0;
}

.about-stat:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.about-stat-num {
  display: block;
  color: #ffffff;
  font-size: 1.92rem;
  font-weight: 900;
  line-height: 1;
}

.about-stat-label {
  display: block;
  margin-top: 9px;
  color: rgba(255, 255, 255, 0.70);
  font-size: 0.84rem;
  font-weight: 700;
}

/* ===== Partners ===== */
.partners {
  padding: 88px 0;
  background: #ffffff;
}

.partners .section-header {
  margin-bottom: 28px;
}

.partners-grid {
  display: flex;
  justify-content: center;
}

.partner-item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 58px;
  padding: 16px 34px;
  border: 1px solid rgba(17, 24, 39, 0.08);
  border-radius: var(--radius);
  color: var(--ink);
  background: linear-gradient(180deg, #ffffff, #f7f8fa);
  box-shadow: var(--shadow-sm);
  font-size: 0.98rem;
  font-weight: 800;
}

.partner-item.partner-trust {
  padding-inline: 44px;
  color: var(--navy);
  border-color: rgba(185, 137, 50, 0.28);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(251, 250, 247, 0.94)),
    linear-gradient(90deg, rgba(185, 137, 50, 0.12), rgba(31, 138, 99, 0.08));
  font-size: 1.08rem;
  letter-spacing: 0;
}

.partners-note {
  margin-top: 18px;
  color: var(--muted);
  text-align: center;
  font-size: 0.93rem;
  line-height: 1.64;
}

/* ===== Contact ===== */
.contact {
  background:
    linear-gradient(180deg, #ffffff 0%, #f6f7f9 100%);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  max-width: 1080px;
  margin: 0 auto;
}

.contact-card {
  min-height: 214px;
  padding: 28px 20px;
  border: 1px solid rgba(17, 24, 39, 0.075);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.contact-card:hover {
  transform: translateY(-4px);
  border-color: rgba(185, 137, 50, 0.3);
  background: #ffffff;
  box-shadow: var(--shadow-md);
}

.contact-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 15px;
  border: 1px solid rgba(17, 24, 39, 0.08);
  border-radius: 50%;
  background: linear-gradient(180deg, #ffffff, #f1f3f6);
  font-size: 1.45rem;
}

.contact-card h4 {
  margin-bottom: 7px;
  color: var(--ink);
  font-size: 0.96rem;
  font-weight: 900;
}

.contact-card p {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.58;
}

.contact-phone a {
  color: var(--brand);
  font-size: 1.16rem;
  font-weight: 900;
  white-space: nowrap;
  transition: color var(--transition);
}

.contact-phone a:hover {
  color: var(--gold);
}

.contact-person,
.contact-hours-note {
  margin-top: 3px;
  font-size: 0.84rem;
}

.contact-hours-note {
  color: var(--gold) !important;
  font-weight: 700;
}

.address-line {
  display: flex;
  justify-content: center;
  margin-top: 2px;
}

.address-link {
  display: inline-block;
  min-width: 178px;
  padding: 5px 12px 7px;
  color: var(--ink-soft);
  border-bottom: 1px solid rgba(185, 137, 50, 0.30);
  line-height: 1.58;
  font-size: 0.88rem;
  font-weight: 700;
  text-align: center;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.address-link:hover {
  color: var(--brand);
  border-bottom-color: var(--brand);
  background: rgba(185, 137, 50, 0.06);
}

.address-nav-hint {
  margin-top: 8px;
  color: var(--gold) !important;
  font-size: 0.78rem !important;
  font-weight: 700;
  line-height: 1.4 !important;
}

.contact-qr-card {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

.contact-address-card {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

.qr-link {
  display: block;
}

.qr-img {
  width: 154px;
  height: 154px;
  margin-bottom: 10px;
  object-fit: contain;
  border: 10px solid #ffffff;
  border-radius: var(--radius);
  box-shadow: 0 12px 32px rgba(17, 24, 39, 0.12);
  transition: transform var(--transition), box-shadow var(--transition);
}

.qr-link:hover .qr-img {
  transform: scale(1.025);
  box-shadow: 0 18px 44px rgba(17, 24, 39, 0.16);
}

.qr-label {
  width: 100%;
  max-width: 230px;
  color: var(--muted) !important;
  font-size: 0.76rem !important;
  font-weight: 600;
  line-height: 1.5;
  white-space: nowrap;
}

.contact-cta {
  grid-column: 1 / -1;
  min-height: auto;
  padding: 38px 28px;
  color: #ffffff;
  background:
    linear-gradient(135deg, rgba(20, 30, 48, 0.99), rgba(95, 32, 48, 0.94)),
    linear-gradient(90deg, rgba(185, 137, 50, 0.14), transparent);
  border-color: rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow-lg);
}

.contact-cta:hover {
  border-color: rgba(213, 182, 109, 0.34);
}

.contact-cta-text {
  margin-bottom: 17px;
  color: rgba(255, 255, 255, 0.88) !important;
  font-size: 1rem !important;
  font-weight: 800;
  line-height: 1.5;
}

.contact-cta-hint {
  margin-top: 13px;
  color: rgba(255, 255, 255, 0.56) !important;
  font-size: 0.84rem !important;
  line-height: 1.5;
}

/* ===== FAQ ===== */
.faq {
  padding: 90px 0;
  background:
    linear-gradient(180deg, #ffffff 0%, #f6f7f9 100%);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  max-width: 1040px;
  margin: 0 auto;
}

.faq-item {
  min-height: 176px;
  padding: 24px;
  border: 1px solid rgba(17, 24, 39, 0.065);
  border-radius: var(--radius);
  background:
    linear-gradient(140deg, rgba(31, 95, 191, 0.045), transparent 46%),
    rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow-sm);
}

.faq-item h3 {
  margin-bottom: 10px;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 900;
  line-height: 1.42;
  text-wrap: balance;
}

.faq-item p {
  color: var(--muted);
  font-size: 0.89rem;
  line-height: 1.72;
  text-wrap: pretty;
}

/* ===== Disclaimer ===== */
.disclaimer {
  padding: 90px 0;
  background: #f6f7f9;
}

.disclaimer-box {
  max-width: 940px;
  margin: 0 auto;
  padding: 38px;
  border: 1px solid rgba(17, 24, 39, 0.10);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow-md);
}

.disclaimer-box h3 {
  margin-bottom: 13px;
  color: var(--ink);
  text-align: center;
  font-size: 1.24rem;
  font-weight: 900;
}

.disclaimer-box > p {
  margin-bottom: 26px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(17, 24, 39, 0.08);
  color: var(--muted);
  text-align: center;
  font-size: 0.95rem;
  line-height: 1.72;
}

.disclaimer-items {
  display: grid;
  gap: 12px;
  margin-bottom: 24px;
}

.disclaimer-item {
  padding: 18px 20px;
  border: 1px solid rgba(17, 24, 39, 0.06);
  border-radius: var(--radius);
  background: #f8f9fb;
}

.disclaimer-item strong {
  display: block;
  margin-bottom: 5px;
  color: var(--ink);
  font-size: 0.96rem;
  font-weight: 900;
}

.disclaimer-item p {
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.68;
}

.disclaimer-footer-text {
  padding-top: 22px;
  border-top: 1px solid rgba(17, 24, 39, 0.08);
  color: var(--brand) !important;
  text-align: center;
  font-size: 0.86rem !important;
  font-weight: 800;
}

/* ===== Footer ===== */
.footer {
  padding: 56px 0 28px;
  color: rgba(255, 255, 255, 0.68);
  background:
    linear-gradient(180deg, var(--navy) 0%, #111827 100%);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.9fr 0.9fr 1.2fr;
  gap: 34px;
  margin-bottom: 36px;
}

.footer-brand-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.footer-logo-img {
  width: 42px;
  height: 24px;
  object-fit: contain;
}

.footer-brand h3,
.footer-links h4,
.footer-contact h4 {
  color: #ffffff;
  font-weight: 900;
}

.footer-brand h3 {
  font-size: 1.08rem;
}

.footer-brand p,
.footer-links a,
.footer-contact p {
  font-size: 0.84rem;
}

.footer-brand p {
  line-height: 1.7;
}

.footer-links h4,
.footer-contact h4 {
  margin-bottom: 12px;
  font-size: 0.92rem;
}

.footer-links a,
.footer-contact p {
  display: block;
  margin-bottom: 9px;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--gold-2);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.10);
  font-size: 0.84rem;
}

.footer-icp {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-icp a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: rgba(255, 255, 255, 0.58);
  transition: color var(--transition);
}

.footer-icp a:hover {
  color: var(--gold-2);
}

.footer-icp span {
  color: rgba(255, 255, 255, 0.38);
  font-size: 0.78rem;
}

.icp-sep {
  color: rgba(255, 255, 255, 0.22) !important;
}

.beian-icon {
  width: 16px;
  height: 16px;
}

/* ===== Floating Contact Bar ===== */
.floating-contact {
  position: fixed;
  inset: auto 0 0;
  z-index: 999;
  background: rgba(17, 24, 39, 0.82);
  box-shadow: 0 -14px 38px rgba(17, 24, 39, 0.16);
  backdrop-filter: saturate(180%) blur(18px);
  transition: transform var(--transition);
}

.floating-contact.hidden {
  transform: translateY(100%);
}

.floating-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  width: min(1180px, calc(100% - 48px));
  min-height: 66px;
  margin: 0 auto;
}

.floating-info {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  flex-wrap: wrap;
}

.floating-icon {
  font-size: 1.08rem;
}

.floating-phone,
.floating-person {
  color: #ffffff;
  font-size: 1.08rem;
  font-weight: 900;
}

.floating-phone {
  letter-spacing: 0;
  transition: color var(--transition);
}

.floating-phone:hover {
  color: var(--gold-2);
}

.floating-call-btn {
  min-height: 42px;
  padding: 10px 22px;
  color: #111827;
  background: #ffffff;
  box-shadow: none;
  font-size: 0.94rem;
}

.floating-call-btn:hover {
  transform: translateY(-1px);
  background: var(--gold-2);
}

/* ===== Responsive ===== */
@media (max-width: 1180px) {
  .hero-title {
    font-size: 4.1rem;
  }

  .nav a {
    padding-inline: 8px;
    font-size: 0.78rem;
  }

}

@media (max-width: 1024px) {
  .container,
  .floating-inner {
    width: min(100% - 40px, 920px);
  }

  .header .container {
    height: 60px;
  }

  .nav {
    position: fixed;
    top: 60px;
    left: 20px;
    right: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 10px;
    border: 1px solid rgba(17, 24, 39, 0.08);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.92);
    box-shadow: var(--shadow-lg);
    backdrop-filter: saturate(180%) blur(22px);
  }

  .nav.active {
    display: flex;
  }

  .nav a {
    padding: 12px 14px;
    font-size: 0.98rem;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding: 104px 0 76px;
  }

  .hero-content {
    max-width: 760px;
  }

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

  .service-card:nth-child(n) {
    grid-column: span 1;
    min-height: 290px;
  }

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

  .step:not(:last-of-type)::after {
    display: none;
  }

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

  .about-visual {
    max-width: 620px;
    margin: 0 auto;
    width: 100%;
  }

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

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

@media (max-width: 768px) {
  body {
    padding-bottom: 82px;
  }

  .container,
  .floating-inner {
    width: min(100% - 32px, 680px);
  }

  .section-header {
    margin-bottom: 34px;
  }

  .section-title,
  .about-text h2 {
    font-size: 2.05rem;
  }

  .section-desc {
    max-width: 34em;
    font-size: 0.96rem;
    line-height: 1.66;
  }

  .hero {
    padding: 86px 0 48px;
  }

  .hero-overlay {
    opacity: 0.25;
    background-size: 54px 54px;
  }

  .hero-title {
    font-size: 2.85rem;
    margin-bottom: 16px;
  }

  .hero-subtitle {
    font-size: 0.95rem;
    line-height: 1.66;
  }

  .hero-notice {
    display: block;
    width: 100%;
    border-radius: var(--radius);
    font-size: 0.78rem;
    line-height: 1.58;
    text-align: center;
    white-space: normal;
  }

  .hero-stats {
    margin-bottom: 24px;
  }

  .stat-item {
    padding: 17px 10px;
  }

  .stat-number {
    font-size: 1.42rem;
  }

  .stat-label {
    font-size: 0.78rem;
  }

  .hero-cta {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .btn {
    width: 100%;
    padding-inline: 16px;
  }

  .services,
  .process,
  .advantages,
  .about,
  .contact,
  .faq,
  .disclaimer {
    padding: 60px 0;
  }

  .partners {
    padding: 58px 0;
  }

  .services-grid,
  .process-steps,
  .advantages-grid,
  .faq-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .service-card:nth-child(n),
  .step,
  .advantage-item,
  .faq-item,
  .contact-card {
    min-height: auto;
  }

  .service-card {
    padding: 23px;
  }

  .service-card > p,
  .step-content p,
  .advantage-item p,
  .about-desc,
  .value-item p,
  .contact-card p {
    line-height: 1.66;
  }

  .service-icon {
    width: 58px;
    height: 58px;
    margin-bottom: 18px;
  }

  .service-icon-img {
    width: 50px;
    height: 50px;
  }

  .step {
    display: grid;
    grid-template-columns: 54px 1fr;
    gap: 14px;
    padding: 22px;
  }

  .step-number {
    width: 48px;
    height: 48px;
    margin-bottom: 0;
  }

  .about-values {
    grid-template-columns: 1fr;
  }

  .about-visual::before {
    inset: -18px 16px 20px -14px;
  }

  .about-logo-panel {
    min-height: 274px;
    padding: 16px 22px 20px;
  }

  .about-main-logo {
    width: min(420px, 92%);
  }

  .about-stat {
    min-height: 124px;
    padding: 23px 17px;
  }

  .about-stat-num {
    font-size: 1.78rem;
  }

  .contact-cta {
    padding: 28px 18px;
  }

  .address-link {
    min-width: 190px;
  }

  .disclaimer-box {
    padding: 24px 18px;
  }

  .footer {
    padding: 38px 0 24px;
  }

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

  .footer-icp {
    align-items: flex-start;
  }

  .floating-inner {
    min-height: 52px;
    gap: 10px;
  }

  .floating-contact {
    inset: auto 14px calc(10px + env(safe-area-inset-bottom, 0px));
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 999px;
    background: rgba(17, 24, 39, 0.88);
    box-shadow: 0 16px 38px rgba(17, 24, 39, 0.22);
  }

  .floating-icon {
    font-size: 0.95rem;
  }

  .floating-phone,
  .floating-person {
    font-size: 0.98rem;
  }

  .floating-call-btn {
    display: none;
  }
}

@media (max-width: 480px) {
  body {
    padding-bottom: 86px;
  }

  .container,
  .floating-inner {
    width: min(100% - 26px, 430px);
  }

  .floating-inner {
    width: 100%;
    min-height: 50px;
  }

  .logo {
    min-width: 0;
    gap: 8px;
  }

  .logo-img {
    width: 32px;
    height: 20px;
  }

  .logo h1 {
    font-size: 0.74rem;
  }

  .hero {
    padding: 78px 0 42px;
  }

  .hero-title {
    font-size: 2.18rem;
    line-height: 1.08;
  }

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

  .stat-item + .stat-item {
    border-left: 1px solid rgba(17, 24, 39, 0.08);
    border-top: 0;
  }

  .stat-item {
    padding: 15px 6px;
  }

  .stat-number {
    font-size: 1.22rem;
  }

  .stat-label {
    font-size: 0.68rem;
  }

  .hero-cta {
    grid-template-columns: 1fr;
  }

  .service-card,
  .advantage-item,
  .faq-item,
  .value-item,
  .contact-card {
    padding: 18px;
  }

  .service-icon {
    width: 56px;
    height: 56px;
  }

  .service-icon-img {
    width: 48px;
    height: 48px;
  }

  .service-card h3,
  .advantage-item h3,
  .step-content h3 {
    font-size: 1rem;
  }

  .service-card > p,
  .service-features li,
  .advantage-item p,
  .step-content p,
  .about-desc,
  .value-item p,
  .contact-card p {
    font-size: 0.86rem;
  }

  .service-features li {
    line-height: 1.55;
  }

  .contact-phone a {
    font-size: 1.08rem;
  }

  .address-link {
    min-width: 184px;
    font-size: 0.86rem;
  }

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

  .about-logo-panel {
    min-height: 212px;
    padding: 14px 16px 18px;
  }

  .about-main-logo {
    width: min(310px, 94%);
  }

  .about-stat {
    min-height: 98px;
    padding: 19px 18px;
  }

  .about-stat,
  .about-stat:nth-child(2n),
  .about-stat:nth-last-child(-n + 2) {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.10);
  }

  .about-stat:last-child {
    border-bottom: 0;
  }

  .qr-img {
    width: 132px;
    height: 132px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .footer-brand-head {
    gap: 8px;
  }

  .footer-logo-img {
    width: 38px;
    height: 22px;
  }

  .footer-brand h3 {
    font-size: 1rem;
  }

  .footer-links h4,
  .footer-contact h4 {
    margin-bottom: 9px;
  }

  .footer-links a,
  .footer-contact p,
  .footer-brand p {
    font-size: 0.82rem;
  }

  .footer-icp {
    flex-direction: column;
    gap: 5px;
  }

  .icp-sep {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }
}