/* 智绘家官网 — 高端商务风 */
:root {
  --bg: #ffffff;
  --bg-muted: #f7f5f2;
  --bg-cream: #faf8f5;
  --bg-dark: #0f1419;
  --text: #1a1a1a;
  --text-muted: #7a7a7a;
  --accent: #1a4d6e;
  --gold: #c9a962;
  --gold-light: #e8d5a8;
  --footer-bg: #0f1419;
  --footer-text: #e8e8e8;
  --header-h: 96px;
  --container: min(1200px, 100% - 48px);
  --font: "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-display: "Playfair Display", "Noto Serif SC", Georgia, serif;
  --shadow-soft: 0 24px 64px rgba(15, 20, 25, 0.12);
  --shadow-card: 0 12px 40px rgba(15, 20, 25, 0.08);
}

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  overscroll-behavior-x: none;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
  max-width: 100%;
}

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

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

.container {
  width: var(--container);
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid #eee;
  max-width: 100%;
  overflow-x: clip;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 1.5rem;
}

.logo {
  font-weight: 700;
  font-size: clamp(1.2rem, 2.8vw, 1.5625rem);
  white-space: nowrap;
  letter-spacing: -0.02em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2.25rem;
  font-size: 1.1875rem;
  font-weight: 500;
}

.nav a:hover {
  opacity: 0.7;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--bg-dark);
  max-width: 100%;
}

.hero-track {
  position: relative;
  min-height: clamp(320px, 55vw, 620px);
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.45s ease;
}

.hero-slide.is-active {
  position: relative;
  opacity: 1;
  visibility: visible;
}

.hero-slide--full.is-active {
  position: relative;
}

.hero-slide--full img {
  width: 100%;
  height: 100%;
  min-height: clamp(320px, 55vw, 620px);
  max-height: min(85vh, 720px);
  object-fit: cover;
  object-position: center;
  display: block;
}

.hero-slide-label {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  margin: 0;
  padding: 2rem 1.5rem 3.25rem;
  font-size: clamp(1.25rem, 3.2vw, 1.875rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #fff;
  text-align: center;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.45);
  background: linear-gradient(to top, rgba(0, 0, 0, 0.55) 0%, rgba(0, 0, 0, 0.2) 45%, transparent 100%);
  pointer-events: none;
}

.hero-dots {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 2;
}

.hero-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  padding: 0;
  background: rgba(255, 255, 255, 0.45);
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}

.hero-dot.is-active {
  background: var(--gold);
  transform: scale(1.15);
  box-shadow: 0 0 8px rgba(201, 169, 98, 0.6);
}

.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 44px;
  height: 72px;
  border: none;
  background: rgba(255, 255, 255, 0.35);
  cursor: pointer;
  color: #fff;
  font-size: 0;
  transition: background 0.2s;
}

.hero-arrow:hover {
  background: rgba(255, 255, 255, 0.5);
}

.hero-arrow--prev {
  left: 0;
  border-radius: 0 4px 4px 0;
}

.hero-arrow--next {
  right: 0;
  border-radius: 4px 0 0 4px;
}

.hero-arrow--prev::after,
.hero-arrow--next::after {
  content: "";
  display: block;
  width: 10px;
  height: 10px;
  margin: 0 auto;
  border: 2px solid currentColor;
  border-bottom: none;
  border-left: none;
}

.hero-arrow--prev::after {
  transform: rotate(-135deg);
  margin-left: 16px;
}

.hero-arrow--next::after {
  transform: rotate(45deg);
  margin-right: 16px;
}

/* Section headers (shared) */
.section-header {
  text-align: center;
  margin-bottom: 2.25rem;
}

.section-heading {
  margin: 0;
  font-size: 1.375rem;
  font-weight: 700;
}

.section-lead {
  margin: 0.65rem 0 0;
  font-size: 0.9375rem;
  color: var(--text-muted);
}

/* Shared premium section headers */
.section-hero {
  padding: clamp(3rem, 7vw, 4.5rem) 0 clamp(2.25rem, 5vw, 3rem);
  text-align: center;
}

.section-hero--dark {
  background: linear-gradient(180deg, var(--bg-dark) 0%, #1a2836 100%);
  color: #fff;
}

.section-hero--light {
  background: var(--bg);
  border-bottom: 1px solid rgba(201, 169, 98, 0.2);
}

.section-hero-inner {
  max-width: 720px;
  margin-inline: auto;
}

.section-hero-eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.35em;
  color: var(--gold);
}

.section-hero--light .section-hero-eyebrow {
  color: var(--accent);
}

.section-hero-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.875rem, 4.5vw, 2.5rem);
  font-weight: 600;
  letter-spacing: 0.06em;
}

.section-hero--light .section-hero-title {
  color: var(--bg-dark);
}

.section-hero-lead {
  margin: 1rem 0 0;
  font-size: 1.0625rem;
  font-weight: 300;
  letter-spacing: 0.04em;
}

.section-hero--dark .section-hero-lead {
  color: rgba(255, 255, 255, 0.72);
}

.section-hero--light .section-hero-lead {
  color: var(--text-muted);
}

.section-hero-divider {
  width: 64px;
  height: 2px;
  margin: 1.75rem auto 0;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.section-hero--light .section-hero-divider {
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.5;
}

/* App intro — premium */
.section--app {
  padding: 0 0 clamp(3.5rem, 8vw, 5rem);
  background: var(--bg-cream);
}

.app-body {
  padding-top: clamp(2.5rem, 5vw, 3.5rem);
}

.app-showcase {
  padding: clamp(2rem, 4vw, 2.75rem) clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
  background: linear-gradient(135deg, var(--bg-dark) 0%, #1e3348 55%, #243d52 100%);
  border-radius: 4px;
  color: #fff;
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

.app-showcase::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -10%;
  width: 50%;
  height: 140%;
  background: radial-gradient(ellipse, rgba(201, 169, 98, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.app-showcase__head {
  position: relative;
  margin-bottom: 1.25rem;
}

.app-showcase__badge {
  display: inline-block;
  margin-bottom: 0.75rem;
  padding: 0.3rem 0.85rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--gold);
  border: 1px solid rgba(201, 169, 98, 0.5);
  border-radius: 2px;
}

.app-showcase__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 600;
  letter-spacing: 0.06em;
}

.app-showcase__slogan {
  margin: 0.5rem 0 0;
  font-size: 1.125rem;
  font-weight: 300;
  color: var(--gold-light);
  letter-spacing: 0.12em;
}

.app-showcase__desc {
  position: relative;
  margin: 0 0 2rem;
  max-width: 56rem;
  font-size: 0.9375rem;
  line-height: 2;
  color: rgba(255, 255, 255, 0.82);
}

.app-pillars {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.app-pillar {
  padding: 1.25rem 1rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  transition: background 0.25s, border-color 0.25s;
}

.app-pillar:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(201, 169, 98, 0.35);
}

.app-pillar__num {
  display: block;
  margin-bottom: 0.5rem;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--gold);
  line-height: 1;
}

.app-pillar__label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #fff;
}

.app-pillar p {
  margin: 0;
  font-size: 0.75rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.55);
}

.app-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 340px);
  gap: clamp(2rem, 4vw, 3rem);
  align-items: start;
}

.app-block {
  margin-bottom: 2.5rem;
}

.app-block:last-child {
  margin-bottom: 0;
}

.app-block__header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.app-block__line {
  flex-shrink: 0;
  width: 40px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), transparent);
}

.app-block__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--bg-dark);
  letter-spacing: 0.04em;
}

.app-block__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 2;
  color: #4a4a4a;
  text-align: justify;
  text-justify: inter-ideograph;
}

.app-block--highlight {
  padding: 1.75rem 1.5rem;
  background: var(--bg);
  border-left: 3px solid var(--gold);
  box-shadow: var(--shadow-card);
}

.app-feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.app-feature-card {
  padding: 1.35rem 1.15rem;
  background: var(--bg);
  border: 1px solid rgba(201, 169, 98, 0.2);
  border-radius: 4px;
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}

.app-feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
  border-color: rgba(201, 169, 98, 0.45);
}

.app-feature-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin-bottom: 0.85rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--gold);
  background: rgba(201, 169, 98, 0.12);
  border: 1px solid rgba(201, 169, 98, 0.3);
  border-radius: 50%;
}

.app-feature-card h5 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--bg-dark);
}

.app-feature-card p {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.65;
  color: #666;
}

.app-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: sticky;
  top: calc(var(--header-h) + 1.5rem);
}

.app-info-card {
  padding: 0;
  background: var(--bg-dark);
  color: #fff;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.app-info-card__title {
  margin: 0;
  padding: 1.35rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  background: linear-gradient(90deg, rgba(201, 169, 98, 0.2), transparent);
  border-bottom: 1px solid rgba(201, 169, 98, 0.25);
}

.app-info-list {
  margin: 0;
  padding: 0.5rem 0;
}

.app-info-row {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 0.75rem;
  padding: 0.85rem 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.app-info-row:last-child {
  border-bottom: none;
}

.app-info-row dt {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 0.04em;
}

.app-info-row dd {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.92);
}

.app-info-row--phone dd a {
  color: var(--gold-light);
  font-weight: 600;
  transition: color 0.2s;
}

.app-info-row--phone dd a:hover {
  color: var(--gold);
}

.app-vision-card {
  padding: 1.5rem;
  background: var(--bg);
  border: 1px solid rgba(201, 169, 98, 0.25);
  border-radius: 4px;
}

.app-vision-card__label {
  margin: 0 0 0.65rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.app-vision-card__text {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.85;
  color: #555;
  font-style: italic;
}

/* Services — premium */
.section--services {
  padding: 0 0 clamp(3.5rem, 8vw, 5rem);
  background: var(--bg);
}

.services-body {
  padding-top: clamp(2.5rem, 5vw, 3.5rem);
}

.services-intro {
  max-width: 48rem;
  margin: 0 auto 2.75rem;
  text-align: center;
  font-size: 1rem;
  line-height: 2;
  color: #555;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.service-card {
  position: relative;
  padding: 2rem 1.5rem 1.75rem;
  background: var(--bg-cream);
  border: 1px solid rgba(15, 20, 25, 0.06);
  border-radius: 4px;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-color: rgba(201, 169, 98, 0.3);
}

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

.service-card--support {
  grid-column: span 3;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto 1fr;
  column-gap: 1.5rem;
  row-gap: 0.25rem;
  padding: 2rem 2rem 1.75rem;
  background: linear-gradient(135deg, var(--bg-dark) 0%, #1e3348 100%);
  color: #fff;
  border-color: transparent;
}

.service-card--support::before {
  background: linear-gradient(90deg, var(--gold), transparent);
  transform: scaleX(1);
}

.service-card--support .service-card__num {
  color: rgba(201, 169, 98, 0.35);
}

.service-card--support .service-card__title,
.service-card--support .service-card__tagline {
  color: #fff;
}

.service-card--support .service-card__tagline {
  color: var(--gold-light);
}

.service-card--support .service-card__desc {
  color: rgba(255, 255, 255, 0.78);
  grid-column: 2;
}

.service-card--support .service-card__icon {
  grid-row: 1 / span 3;
  align-self: start;
  background: rgba(201, 169, 98, 0.15);
  border-color: rgba(201, 169, 98, 0.4);
}

.service-card--support .service-card__desc a {
  color: var(--gold-light);
}

.service-card--support .service-card__desc a:hover {
  color: var(--gold);
}

.service-card__num {
  position: absolute;
  top: 0.75rem;
  right: 1rem;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 600;
  line-height: 1;
  color: rgba(201, 169, 98, 0.18);
  pointer-events: none;
}

.service-card__icon {
  width: 44px;
  height: 44px;
  margin-bottom: 1rem;
  background: rgba(26, 77, 110, 0.08);
  border: 1px solid rgba(26, 77, 110, 0.15);
  border-radius: 50%;
  position: relative;
}

.service-card__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 18px;
  height: 14px;
  border: 2px solid var(--accent);
  border-radius: 2px;
}

.service-card__icon--delivery::after {
  width: 16px;
  height: 12px;
  border-radius: 50% 50% 2px 2px;
  border-bottom-width: 3px;
}

.service-card__icon--shop::after {
  width: 14px;
  height: 14px;
  border-radius: 2px 2px 0 0;
  border-top: none;
  box-shadow: inset 0 -4px 0 var(--accent);
}

.service-card__icon--farm::after {
  width: 0;
  height: 0;
  border: none;
  border-left: 9px solid transparent;
  border-right: 9px solid transparent;
  border-bottom: 14px solid var(--accent);
}

.service-card__icon--travel::after {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border-width: 2px;
}

.service-card__icon--support::after {
  width: 16px;
  height: 10px;
  border-radius: 8px 8px 2px 2px;
  border: 2px solid var(--gold);
}

.service-card__title {
  margin: 0 0 0.35rem;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--bg-dark);
}

.service-card__tagline {
  margin: 0 0 0.75rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.service-card__desc {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: #555;
}

.service-card__desc a {
  color: var(--accent);
  font-weight: 600;
  transition: color 0.2s;
}

.service-card__desc a:hover {
  color: var(--gold);
}

.services-policy {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.policy-card {
  padding: 2rem 1.75rem;
  background: var(--bg-cream);
  border: 1px solid rgba(201, 169, 98, 0.2);
  border-radius: 4px;
  position: relative;
}

.policy-card__icon {
  width: 36px;
  height: 36px;
  margin-bottom: 1rem;
  border: 2px solid var(--gold);
  border-radius: 50%;
  position: relative;
}

.policy-card__icon::after {
  content: "i";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  font-style: italic;
  color: var(--gold);
}

.policy-card__icon--fee::after {
  content: "¥";
  font-style: normal;
  font-size: 1rem;
}

.policy-card__title {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--bg-dark);
}

.policy-card p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.85;
  color: #555;
}

/* Offerings / 品牌 + 业务介绍 — 一体融合 */
.section--offerings {
  padding: 0;
  background: var(--bg-cream);
}

.offerings-hero {
  position: relative;
  margin-top: -1px;
  background: linear-gradient(
    180deg,
    var(--bg-dark) 0%,
    #141c26 35%,
    #1a2836 70%,
    #1e3040 100%
  );
  color: #fff;
  text-align: center;
  overflow: hidden;
}

.offerings-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120%;
  height: 60%;
  background: radial-gradient(ellipse at 50% 0%, rgba(201, 169, 98, 0.08) 0%, transparent 55%);
  pointer-events: none;
}

.brand-intro {
  position: relative;
  padding: clamp(2.5rem, 6vw, 4rem) 0 clamp(1.5rem, 4vw, 2.5rem);
}

.brand-intro-inner {
  max-width: 800px;
  margin-inline: auto;
}

.brand-intro__eyebrow {
  margin: 0 0 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.35em;
  color: var(--gold);
}

.brand-intro__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 6vw, 3.25rem);
  font-weight: 600;
  letter-spacing: 0.1em;
  line-height: 1.2;
  color: #fff;
  text-shadow: 0 4px 32px rgba(201, 169, 98, 0.15);
}

.brand-intro__slogan {
  margin: 1rem 0 0;
  font-size: clamp(1.125rem, 2.8vw, 1.5rem);
  font-weight: 300;
  letter-spacing: 0.2em;
  color: var(--gold-light);
}

.brand-intro__sub {
  margin: 0.85rem 0 0;
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.55);
}

.brand-intro__sub::before {
  content: "";
  display: block;
  width: 48px;
  height: 2px;
  margin: 0 auto 1.1rem;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.offerings-bridge {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 0 1.5rem;
  max-width: 480px;
  margin: 0 auto;
}

.offerings-bridge__line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(201, 169, 98, 0.45), transparent);
}

.offerings-bridge__ornament {
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  border: 1px solid var(--gold);
  transform: rotate(45deg);
  background: rgba(201, 169, 98, 0.15);
}

.offerings-intro {
  position: relative;
  padding: clamp(1.75rem, 4vw, 2.5rem) 0 clamp(2rem, 4vw, 2.75rem);
  text-align: center;
}

.offerings-intro-inner {
  max-width: 720px;
}

.offerings-eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.35em;
  color: var(--gold);
}

.offerings-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 600;
  letter-spacing: 0.08em;
}

.offerings-lead {
  margin: 1rem 0 0;
  font-size: 1.0625rem;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.72);
  letter-spacing: 0.04em;
}

.offerings-divider {
  width: 64px;
  height: 2px;
  margin: 1.75rem auto 0;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.biz-modules {
  display: flex;
  flex-direction: column;
}

.biz-module {
  padding: clamp(3rem, 7vw, 5rem) 0;
  background: var(--bg-cream);
}

.biz-module--alt {
  background: var(--bg);
}

.biz-module__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}

.biz-module--alt .biz-module__inner {
  direction: rtl;
}

.biz-module--alt .biz-module__inner > * {
  direction: ltr;
}

.biz-module__visual {
  position: relative;
}

.biz-module__index {
  position: absolute;
  top: -0.5rem;
  left: -0.25rem;
  z-index: 2;
  font-family: var(--font-display);
  font-size: clamp(4rem, 10vw, 6.5rem);
  font-weight: 600;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(201, 169, 98, 0.35);
  pointer-events: none;
  user-select: none;
}

.biz-module--alt .biz-module__index {
  left: auto;
  right: -0.25rem;
}

.biz-module__img-wrap {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.biz-module__img-wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    135deg,
    rgba(15, 20, 25, 0.08) 0%,
    transparent 50%,
    rgba(201, 169, 98, 0.06) 100%
  );
  pointer-events: none;
}

.biz-module__img-wrap::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  z-index: 2;
}

.biz-module__img-wrap img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.biz-module:hover .biz-module__img-wrap img {
  transform: scale(1.03);
}

.biz-module__body {
  padding: 0.5rem 0;
}

.biz-module__tag {
  display: inline-block;
  margin-bottom: 0.85rem;
  padding: 0.35rem 0.9rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--gold);
  background: rgba(201, 169, 98, 0.12);
  border: 1px solid rgba(201, 169, 98, 0.35);
  border-radius: 2px;
}

.biz-module__title {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 600;
  color: var(--bg-dark);
  letter-spacing: 0.04em;
}

.biz-module__subtitle {
  margin: 0 0 1.25rem;
  padding-left: 1rem;
  font-size: 1.0625rem;
  font-weight: 500;
  line-height: 1.65;
  color: var(--accent);
  border-left: 3px solid var(--gold);
}

.biz-module__desc {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 2;
  color: #4a4a4a;
  text-align: justify;
  text-justify: inter-ideograph;
}

/* Contact / 期待与您合作 — premium */
.section--contact {
  padding: 0 0 clamp(3.5rem, 8vw, 5rem);
  background: var(--bg-cream);
}

.contact-body {
  padding-top: clamp(2.5rem, 5vw, 3.5rem);
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 380px);
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: start;
}

.contact-intro {
  margin: 0 0 2.25rem;
  font-size: 1rem;
  line-height: 2;
  color: #4a4a4a;
  text-align: justify;
  text-justify: inter-ideograph;
}

.contact-coops {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.contact-coop {
  position: relative;
  padding: 1.75rem 1.35rem 1.5rem;
  background: var(--bg);
  border: 1px solid rgba(201, 169, 98, 0.2);
  border-radius: 4px;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.contact-coop::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}

.contact-coop:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-color: rgba(201, 169, 98, 0.4);
}

.contact-coop:hover::before {
  transform: scaleX(1);
}

.contact-coop__num {
  display: block;
  margin-bottom: 0.75rem;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  line-height: 1;
  color: rgba(201, 169, 98, 0.35);
}

.contact-coop__title {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--bg-dark);
}

.contact-coop__desc {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: #666;
}

.contact-panel {
  position: sticky;
  top: calc(var(--header-h) + 1.5rem);
}

.contact-panel__card {
  padding: 2rem 1.75rem;
  background: linear-gradient(160deg, var(--bg-dark) 0%, #1e3348 50%, #243d52 100%);
  color: #fff;
  border-radius: 4px;
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

.contact-panel__card::after {
  content: "";
  position: absolute;
  bottom: -30%;
  right: -20%;
  width: 70%;
  height: 70%;
  background: radial-gradient(ellipse, rgba(201, 169, 98, 0.12) 0%, transparent 65%);
  pointer-events: none;
}

.contact-panel__label {
  position: relative;
  margin: 0 0 0.5rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: var(--gold);
}

.contact-panel__company {
  position: relative;
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

.contact-panel__divider {
  position: relative;
  height: 1px;
  margin: 1.5rem 0;
  background: linear-gradient(90deg, var(--gold), rgba(201, 169, 98, 0.2), transparent);
}

.contact-panel__list {
  position: relative;
  margin: 0;
}

.contact-panel__row {
  margin-bottom: 1.15rem;
}

.contact-panel__row:last-child {
  margin-bottom: 0;
}

.contact-panel__row dt {
  margin: 0 0 0.3rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 0.06em;
}

.contact-panel__row dd {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.92);
}

.contact-panel__row--phone dd {
  margin-top: 0.15rem;
}

.contact-panel__phone {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 1.875rem);
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--gold-light);
  transition: color 0.2s;
}

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

.contact-panel__note {
  margin: 1.25rem 0 0;
  padding: 0 0.25rem;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: #888;
  text-align: center;
}

/* Sections (shared) */
.section {
  padding-block: 4rem;
}

/* Footer */
.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding: 2.5rem 1rem 2rem;
  text-align: center;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem 2rem;
  font-size: 0.9375rem;
}

.footer-nav a {
  color: #fff;
  opacity: 0.95;
}

.footer-nav a:hover {
  opacity: 0.75;
}

.footer-rule {
  border: none;
  border-top: 1px solid rgba(255, 255, 255, 0.25);
  margin: 1.5rem auto 1.25rem;
  max-width: 480px;
}

.footer-meta,
.footer-copy {
  margin: 0.35rem 0;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.55);
}

.footer-beian {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.2s;
}

.footer-beian:hover {
  text-decoration: underline;
  opacity: 0.95;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
    flex-shrink: 0;
  }

  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem 1.5rem 1rem;
    background: var(--bg);
    border-bottom: 1px solid #eee;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.25s ease, opacity 0.25s ease, visibility 0.25s;
  }

  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav a {
    padding: 0.75rem 0;
    border-bottom: 1px solid #f0f0f0;
  }

  .site-header .header-inner {
    width: min(100%, 100% - 20px);
    margin-inline: auto;
    padding-inline: 10px;
    gap: 0.5rem;
  }

  .logo {
    flex: 1;
    min-width: 0;
    max-width: calc(100% - 2.5rem);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: clamp(0.9375rem, 4.8vw, 1.3125rem);
    letter-spacing: -0.04em;
    line-height: 1.2;
  }

  .hero-arrow {
    width: 36px;
    height: 56px;
  }

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

  .contact-panel {
    position: static;
  }

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

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

  .app-layout {
    grid-template-columns: 1fr;
  }

  .app-sidebar {
    position: static;
  }

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

  .service-card--support {
    grid-column: span 2;
    grid-template-columns: 1fr;
  }

  .service-card--support .service-card__icon {
    grid-row: auto;
  }

  .service-card--support .service-card__desc {
    grid-column: 1;
  }

  .services-policy {
    grid-template-columns: 1fr;
  }

  .biz-module__inner,
  .biz-module--alt .biz-module__inner {
    grid-template-columns: 1fr;
    direction: ltr;
  }

  .biz-module--alt .biz-module__inner > * {
    direction: ltr;
  }

  .biz-module__index,
  .biz-module--alt .biz-module__index {
    left: 0.5rem;
    right: auto;
    font-size: 3.5rem;
  }

  .biz-module__body {
    padding-top: 0.25rem;
  }

  .biz-module__desc {
    text-align: left;
  }

  .reveal--left,
  .reveal--right {
    transform: translateY(36px);
  }

  .biz-module__visual {
    overflow: hidden;
  }
}

@media (max-width: 540px) {
  :root {
    --container: min(100%, 100% - 32px);
  }

  .app-pillars {
    grid-template-columns: 1fr;
  }

  .app-feature-grid {
    grid-template-columns: 1fr;
  }

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

  .service-card--support {
    grid-column: span 1;
  }
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition:
    opacity 0.75s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.75s cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: var(--reveal-delay, 0s);
  will-change: opacity, transform;
}

.reveal--left {
  transform: translateX(-48px);
}

.reveal--right {
  transform: translateX(48px);
}

.reveal--fade {
  transform: none;
}

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

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}