:root {
  /* 与 assets/logo.png 一致：焦橙 + 黑底图形 */
  --brand: #d35400;
  --brand-dark: #a84300;
  --brand-mid: #e07020;
  --brand-light: #ea8f47;
  --brand-highlight: #f5b078;
  --brand-weak: #fff7f0;
  --brand-soft: #ffe8d4;
  --brand-rgb: 211, 84, 0;
  --logo-black: #0a0a0a;

  --dj: #1a7f6e;
  --dj-dark: #136658;
  --dj-weak: #e8f5f2;
  --bg: #faf8f6;
  --surface: #ffffff;
  --text: #14110f;
  --text-secondary: #5c5650;
  --text-muted: #8a847c;
  --border: #efe5dc;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow: 0 12px 40px rgba(20, 17, 15, 0.08);
  --header-h: 64px;
  --max: 1140px;
  /* 正文行长：中文可读区间约 45–58 字宽（ch 近似等宽） */
  --measure-prose:90ch;
  --measure-subtitle: 56ch;
  --measure-relaxed: 100ch;
  --measure-column: min(960px, 100%);
  --pad-inline: clamp(20px, 4vw, 36px);
}

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

html {
  scroll-behavior: smooth;
}

section[id] {
  scroll-margin-top: calc(var(--header-h) + 12px);
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial,
    sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}

a {
  color: var(--brand-dark);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* —— Header —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.site-header__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad-inline);
  height: 100%;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--text);
  text-decoration: none;
  flex-shrink: 0;
}

.logo:hover {
  text-decoration: none;
  color: var(--brand-dark);
}

.logo__img {
  height: 36px;
  width: auto;
  max-width: 140px;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
}

.logo__text {
  letter-spacing: 0.02em;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  background: var(--brand);
  color: #fff !important;
  text-decoration: none !important;
  flex-shrink: 0;
  box-shadow: 0 4px 16px rgba(var(--brand-rgb), 0.28);
  transition: transform 0.15s ease, background 0.15s ease;
  margin-left: auto;
}

.header-cta:hover {
  background: var(--brand-dark);
  transform: translateY(-1px);
  text-decoration: none !important;
}

.header-cta--ghost {
  background: transparent;
  color: var(--brand) !important;
  border: 2px solid var(--brand);
  box-shadow: none;
}

.header-cta--ghost:hover {
  background: var(--brand-weak);
  color: var(--brand-dark) !important;
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav__link {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 8px;
  position: relative;
}

.nav__link:hover {
  color: var(--brand);
  text-decoration: none;
}

.nav__link--active {
  color: var(--text);
  font-weight: 600;
}

.nav__link--active::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 2px;
  height: 2px;
  background: var(--brand);
  border-radius: 1px;
}

.nav__dropdown {
  position: relative;
}

.nav__dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border: none;
  background: transparent;
  font: inherit;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
}

.nav__dropdown-toggle:hover {
  color: var(--brand);
}

.nav__caret {
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  opacity: 0.65;
}

.nav__dropdown-panel {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 160px;
  padding: 8px;
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
  z-index: 50;
}

.nav__dropdown-panel a {
  display: block;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
}

.nav__dropdown-panel a:hover {
  background: var(--brand-weak);
  color: var(--brand-dark);
  text-decoration: none;
}

.nav__dropdown.is-open .nav__dropdown-panel,
.nav__dropdown:focus-within .nav__dropdown-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(4px);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
}

.menu-toggle::before {
  content: "";
  position: absolute;
  left: 11px;
  right: 11px;
  top: 15px;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
  box-shadow: 0 7px 0 var(--text), 0 14px 0 var(--text);
}

/* —— Float bar —— */
.float-bar {
  position: fixed;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 150;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.float-bar__btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  text-decoration: none;
  transition: color 0.15s, border-color 0.15s, transform 0.15s;
}

.float-bar__btn:hover {
  color: var(--brand);
  border-color: var(--brand-soft);
  transform: scale(1.04);
  text-decoration: none;
}

/* —— Hero —— */
.hero {
  padding: 56px var(--pad-inline) 72px;
  background: linear-gradient(180deg, var(--brand-weak) 0%, #fff 55%);
  border-bottom: 1px solid var(--border);
}

.hero--split .hero__grid {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero__title {
  margin: 0 0 16px;
  font-size: clamp(1.75rem, 3.6vw, 2.35rem);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.hero__subtitle {
  margin: 0 0 12px;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
}

.hero__desc {
  margin: 0 0 28px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  max-width: var(--measure-prose);
}

.hero__body {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 0 0 28px;
  max-width: var(--measure-prose);
}

.hero__body .hero__desc {
  margin: 0;
  max-width: none;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none !important;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn:hover {
  text-decoration: none !important;
}

.btn--solid {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 6px 20px rgba(var(--brand-rgb), 0.32);
}

.btn--solid:hover {
  background: var(--brand-dark);
  transform: translateY(-1px);
}

.btn--outline {
  background: #fff;
  color: var(--brand);
  border-color: var(--brand);
}

.btn--outline:hover {
  background: var(--brand-weak);
}

.btn--on-red {
  background: #fff;
  color: var(--brand);
}

.btn--on-red:hover {
  transform: translateY(-1px);
}

.btn--ghost-red {
  background: transparent;
  color: #fff !important;
  border-color: rgba(255, 255, 255, 0.85);
}

.btn--ghost-red:hover {
  background: rgba(255, 255, 255, 0.12);
}

.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 260px;
}

.hero-iso {
  position: relative;
  width: 100%;
  max-width: 380px;
  aspect-ratio: 4/3;
}

.hero-iso__laptop {
  position: absolute;
  left: 8%;
  bottom: 12%;
  width: 58%;
  height: 42%;
  background: linear-gradient(145deg, #f8f8fa, #fff);
  border-radius: 8px;
  border: 2px solid #e8e8ec;
  box-shadow: 12px 12px 0 rgba(var(--brand-rgb), 0.12);
  transform: skewX(-6deg);
}

.hero-iso__laptop::after {
  content: "";
  position: absolute;
  inset: 12% 10%;
  background: repeating-linear-gradient(
    90deg,
    var(--brand-soft),
    var(--brand-soft) 12px,
    #fff 12px,
    #fff 20px
  );
  border-radius: 4px;
  opacity: 0.9;
}

.hero-iso__shop {
  position: absolute;
  right: 6%;
  bottom: 28%;
  width: 32%;
  height: 38%;
  background: linear-gradient(180deg, var(--brand) 0%, var(--brand-mid) 100%);
  border-radius: 10px 10px 4px 4px;
  box-shadow: 0 16px 32px rgba(var(--brand-rgb), 0.22);
}

.hero-iso__shop::before {
  content: "";
  position: absolute;
  left: -6px;
  right: -6px;
  top: -8px;
  height: 14px;
  background: #fff;
  border-radius: 4px;
  border: 2px solid var(--brand-soft);
}

.hero-iso__cart {
  position: absolute;
  right: 28%;
  bottom: 8%;
  width: 22%;
  height: 18%;
  background: #fff;
  border: 2px solid var(--border);
  border-radius: 6px;
  box-shadow: 4px 4px 0 var(--brand-weak);
}

/* —— Sections —— */
.section {
  padding: 72px var(--pad-inline);
}

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

.section--tint {
  background: var(--bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section--map {
  background: linear-gradient(180deg, var(--brand-weak) 0%, #fff 70%);
  padding-bottom: 56px;
}

.section__inner {
  max-width: var(--max);
  margin: 0 auto;
  width: 100%;
}

.section__inner--wide {
  max-width: var(--max);
}

.section-head {
  text-align: center;
  margin: 0 auto 48px;
  max-width: min(68ch, 100%);
}

.section-head--onmap {
  margin-bottom: 28px;
}

/* 覆盖区：文案加宽，与下方示意区视觉平衡 */
#coverage .section-head {
  max-width: min(88ch, 100%);
}

#coverage .section-head__subtitle {
  max-width: min(78ch, 100%);
}

.section-head__title {
  margin: 0 0 12px;
  font-size: clamp(1.35rem, 2.8vw, 1.75rem);
  font-weight: 800;
}

.section-head__title--left {
  text-align: left;
  margin-bottom: 20px;
  max-width: var(--measure-relaxed);
}

.section-head__subtitle {
  margin: 0 auto;
  max-width: var(--measure-subtitle);
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.section-head__subtitle strong {
  color: var(--text);
  font-weight: 700;
}

.section__subtitle {
  margin: 0 0 24px;
  max-width: var(--measure-relaxed);
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.section__subtitle--left {
  text-align: left;
  margin-left: 0;
  margin-right: 0;
  margin-bottom: 24px;
}

/* Feature grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  text-align: center;
  padding: 28px 18px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: box-shadow 0.2s, transform 0.2s;
}

.feature-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.feature-card__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: 16px;
  background: var(--brand-weak);
  color: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-card__title {
  margin: 0 0 10px;
  font-size: 1.0625rem;
}

.feature-card__text {
  margin: 0 auto;
  max-width: 28ch;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Pillars */
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.pillar-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 24px 22px 22px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.pillar-card__badge {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 10px;
  background: var(--brand);
  color: #fff;
  font-size: 0.8125rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.pillar-card__lead {
  margin: 0 0 18px;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--text-secondary);
}

.pillar-card__lead strong {
  color: var(--text);
  font-weight: 700;
}

.pillar-card__chips {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 10px;
  background: var(--brand-weak);
  font-size: 0.75rem;
  color: var(--text-secondary);
  border: 1px solid var(--brand-soft);
}

/* Split + bullets */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.split--reverse {
  direction: rtl;
}

.split--reverse > * {
  direction: ltr;
}

.split__media {
  position: relative;
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mock-dash {
  width: 100%;
  max-width: 360px;
  height: 220px;
  background: #fff;
  border-radius: 14px;
  border: 2px solid var(--border);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
  display: flex;
  overflow: hidden;
}

.mock-dash__sidebar {
  width: 22%;
  background: linear-gradient(180deg, #fafafa, #f3f3f5);
  border-right: 1px solid var(--border);
}

.mock-dash__main {
  flex: 1;
  padding: 16px;
}

.mock-dash__row {
  height: 12px;
  background: var(--border);
  border-radius: 4px;
  margin-bottom: 12px;
  width: 70%;
}

.mock-dash__row--short {
  width: 45%;
}

.mock-dash__tiles {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 16px;
}

.mock-dash__tiles span {
  aspect-ratio: 1;
  background: var(--brand-weak);
  border-radius: 8px;
}

.mock-hex {
  position: absolute;
  width: 40px;
  height: 40px;
  background: var(--brand);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  box-shadow: 0 8px 20px rgba(var(--brand-rgb), 0.32);
}

.mock-hex--1 {
  top: 8%;
  right: 12%;
}

.mock-hex--2 {
  bottom: 18%;
  left: 4%;
  background: var(--brand-mid);
}

.bullet-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.bullet-list__item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.bullet-list__bar {
  width: 4px;
  min-height: 48px;
  background: linear-gradient(180deg, var(--brand), var(--brand-light));
  border-radius: 4px;
  flex-shrink: 0;
  margin-top: 4px;
}

.bullet-list__title {
  display: block;
  font-size: 1rem;
  margin-bottom: 6px;
}

.bullet-list__text {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.72;
  color: var(--text-secondary);
  overflow-wrap: break-word;
}

.bullet-list__text strong {
  color: var(--text);
  font-weight: 700;
}

/* 「数字化与站点建设」分栏：信息卡 + 面板 + 要点卡片（与多渠道 / 私域同宽） */
#speed .section-head {
  margin-bottom: 40px;
  max-width: var(--measure-column);
  margin-left: auto;
  margin-right: auto;
}

#speed .section-head__subtitle {
  max-width: var(--measure-relaxed);
  margin-left: auto;
  margin-right: auto;
  padding: 18px 24px;
  background: linear-gradient(180deg, var(--brand-weak) 0%, #fff 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--brand-soft);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.85),
    0 4px 20px rgba(20, 17, 15, 0.05);
}

#speed .split {
  align-items: stretch;
  background: linear-gradient(
    155deg,
    rgba(255, 247, 240, 0.55) 0%,
    #fff 38%,
    #faf8f6 100%
  );
}

#speed .split__media {
  min-height: 300px;
}

#speed .split__media::before {
  content: "";
  position: absolute;
  inset: -8% -10% -8% -10%;
  background: radial-gradient(
    ellipse 85% 70% at 50% 48%,
    rgba(var(--brand-rgb), 0.1) 0%,
    transparent 70%
  );
  pointer-events: none;
  z-index: 0;
}

#speed .split__media > * {
  position: relative;
  z-index: 1;
}

#speed .mock-dash {
  position: relative;
  padding-top: 14px;
  height: 234px;
  min-height: 234px;
  border: 1px solid rgba(var(--brand-rgb), 0.14);
  box-shadow: 0 2px 8px rgba(20, 17, 15, 0.04),
    0 20px 48px rgba(20, 17, 15, 0.1);
}

#speed .mock-dash::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 14px;
  background: linear-gradient(180deg, #f0eeeb 0%, #faf9f8 100%);
  border-bottom: 1px solid var(--border);
  border-radius: 13px 13px 0 0;
  box-shadow: inset 0 -1px 0 rgba(255, 255, 255, 0.6);
}

#speed .mock-dash__tiles span {
  background: linear-gradient(
    145deg,
    var(--brand-weak) 0%,
    rgba(255, 255, 255, 0.9) 100%
  );
  border: 1px solid rgba(var(--brand-rgb), 0.08);
}

#speed .mock-hex {
  filter: drop-shadow(0 6px 14px rgba(var(--brand-rgb), 0.35));
}

#speed .bullet-list {
  gap: 14px;
}

#speed .bullet-list__item {
  padding: 20px 22px 20px 20px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 2px 10px rgba(20, 17, 15, 0.04);
  transition: box-shadow 0.22s ease, border-color 0.22s ease, transform 0.22s ease;
}

#speed .bullet-list__item:hover {
  border-color: var(--brand-soft);
  box-shadow: 0 10px 32px rgba(20, 17, 15, 0.08);
  transform: translateY(-2px);
}

#speed .bullet-list__bar {
  width: 5px;
  min-height: 56px;
  border-radius: 6px;
  margin-top: 2px;
  box-shadow: 0 2px 10px rgba(var(--brand-rgb), 0.2);
}

#speed .bullet-list__title {
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--text);
  margin-bottom: 8px;
}

#speed .bullet-list__text {
  font-size: 0.90625rem;
}

@media (max-width: 720px) {
  #speed .section-head__subtitle,
  #channels .section-head__subtitle,
  #private .section-head__subtitle {
    padding: 16px 18px;
    text-align: left;
  }

  #speed .split,
  #channels .split,
  #private .split {
    padding: 20px 16px;
  }
}

/* Hub visual */
.hub-visual {
  position: relative;
  width: 100%;
  max-width: 340px;
  aspect-ratio: 1;
  margin: 0 auto;
}

.hub-visual__orbit {
  position: absolute;
  border: 1px dashed rgba(var(--brand-rgb), 0.22);
  border-radius: 50%;
  inset: 0;
}

.hub-visual__orbit--2 {
  inset: 18%;
}

.hub-visual__core {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 88px;
  height: 88px;
  background: linear-gradient(145deg, var(--brand), var(--brand-mid));
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 40px rgba(var(--brand-rgb), 0.35);
}

.hub-visual__dot {
  position: absolute;
  font-size: 0.6875rem;
  padding: 6px 10px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-secondary);
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.hub-visual__dot--a {
  top: 8%;
  left: 50%;
  transform: translateX(-50%);
}

.hub-visual__dot--b {
  right: 4%;
  top: 42%;
}

.hub-visual__dot--c {
  bottom: 12%;
  right: 18%;
}

.hub-visual__dot--d {
  bottom: 18%;
  left: 8%;
}

/* 渠道能力环：多入口标签环形排布 */
.hub-visual.hub-visual--spectrum {
  max-width: 400px;
}

.hub-visual--spectrum .hub-visual__orbit {
  z-index: 0;
}

.hub-visual--spectrum .hub-visual__core {
  z-index: 3;
}

.hub-visual--spectrum .hub-visual__core--brand {
  width: 96px;
  height: 96px;
  padding: 10px;
  background: linear-gradient(165deg, #fff 0%, #fff9f5 100%);
  border: 2px solid rgba(var(--brand-rgb), 0.22);
  border-radius: 22px;
  box-shadow: 0 10px 36px rgba(var(--brand-rgb), 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.95);
}

.hub-visual__logo {
  display: block;
  width: 100%;
  height: 100%;
  max-height: 76px;
  object-fit: contain;
  object-position: center;
}

.hub-visual__tag {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 2;
  font-size: 0.625rem;
  font-weight: 600;
  padding: 5px 9px;
  background: #fff;
  border: 1px solid rgba(var(--brand-rgb), 0.12);
  border-radius: 999px;
  color: var(--text-secondary);
  white-space: nowrap;
  box-shadow: 0 3px 12px rgba(20, 17, 15, 0.08);
  transform: translate(-50%, -50%) rotate(var(--rot)) translateY(calc(-1 * var(--r, 118px)))
    rotate(calc(-1 * var(--rot)));
}

@media (max-width: 720px) {
  .hub-visual.hub-visual--spectrum {
    max-width: min(340px, 92vw);
  }

  .hub-visual__tag {
    font-size: 0.5625rem;
    padding: 4px 7px;
    transform: translate(-50%, -50%) rotate(var(--rot))
      translateY(calc(-1 * var(--r, 118px) * 0.78)) rotate(calc(-1 * var(--rot)));
  }
}

/* 私域区左侧：四阶段环绕 Logo（双环 + 错落半径） */
.hub-visual.hub-visual--spectrum.hub-visual--private {
  max-width: 340px;
  margin-left: auto;
  margin-right: auto;
}

.hub-visual--private .hub-visual__tag {
  font-size: 0.6875rem;
  padding: 7px 12px;
}

.hub-visual--private .hub-visual__orbit--2 {
  inset: 22%;
}

/* 「多渠道触达与承接」与数字化区块视觉对齐 */
#channels .section-head {
  margin-bottom: 40px;
  max-width: var(--measure-column);
  margin-left: auto;
  margin-right: auto;
}

#channels .section-head__subtitle {
  max-width: var(--measure-relaxed);
  margin-left: auto;
  margin-right: auto;
  padding: 18px 24px;
  background: linear-gradient(180deg, #fff 0%, var(--brand-weak) 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--brand-soft);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.85),
    0 4px 20px rgba(20, 17, 15, 0.05);
}

#channels .section-head__subtitle strong {
  color: var(--text);
  font-weight: 700;
}

/* 数字化 / 多渠道 / 私域：白底分栏同宽、同列比例（与上方说明卡中线对齐） */
#speed .split,
#channels .split,
#private .split {
  box-sizing: border-box;
  width: 100%;
  max-width: var(--measure-column);
  margin-left: auto;
  margin-right: auto;
  grid-template-columns: minmax(260px, 1fr) minmax(260px, 1fr);
  gap: clamp(28px, 4vw, 48px);
  padding: clamp(22px, 3.5vw, 38px) clamp(24px, 4vw, 44px);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius-lg) + 6px);
  box-shadow: 0 4px 28px rgba(20, 17, 15, 0.06);
}

#speed .split > *,
#channels .split > *,
#private .split > * {
  min-width: 0;
}

#channels .split,
#private .split {
  align-items: center;
}

#channels .split {
  background: linear-gradient(
    165deg,
    #fff 0%,
    rgba(255, 247, 240, 0.45) 55%,
    #faf8f6 100%
  );
}

#private .split {
  background: linear-gradient(
    160deg,
    rgba(255, 247, 240, 0.4) 0%,
    #fff 45%,
    #faf8f6 100%
  );
}

#channels .bullet-list {
  gap: 14px;
}

#channels .bullet-list__item {
  padding: 20px 22px 20px 20px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 2px 10px rgba(20, 17, 15, 0.04);
  transition: box-shadow 0.22s ease, border-color 0.22s ease, transform 0.22s ease;
}

#channels .bullet-list__item:hover {
  border-color: var(--brand-soft);
  box-shadow: 0 10px 32px rgba(20, 17, 15, 0.08);
  transform: translateY(-2px);
}

#channels .bullet-list__bar {
  width: 5px;
  min-height: 56px;
  border-radius: 6px;
  margin-top: 2px;
  box-shadow: 0 2px 10px rgba(var(--brand-rgb), 0.2);
}

#channels .bullet-list__title {
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--text);
  margin-bottom: 8px;
}

#channels .bullet-list__text {
  font-size: 0.90625rem;
  line-height: 1.72;
}

#channels .bullet-list__text strong {
  color: var(--text);
  font-weight: 700;
}

/* 「可持续的客户沟通」私域深化：版式与多渠道区对齐 */
#private .section-head {
  margin-bottom: 40px;
  max-width: var(--measure-column);
  margin-left: auto;
  margin-right: auto;
}

#private .section-head__subtitle {
  max-width: var(--measure-relaxed);
  margin-left: auto;
  margin-right: auto;
  padding: 18px 24px;
  background: linear-gradient(180deg, var(--brand-weak) 0%, #fff 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--brand-soft);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.85),
    0 4px 20px rgba(20, 17, 15, 0.05);
}

#private .section-head__subtitle strong {
  color: var(--text);
  font-weight: 700;
}

#private .bullet-list {
  gap: 14px;
}

#private .bullet-list__item {
  padding: 20px 22px 20px 20px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 2px 10px rgba(20, 17, 15, 0.04);
  transition: box-shadow 0.22s ease, border-color 0.22s ease, transform 0.22s ease;
}

#private .bullet-list__item:hover {
  border-color: var(--brand-soft);
  box-shadow: 0 10px 32px rgba(20, 17, 15, 0.08);
  transform: translateY(-2px);
}

#private .bullet-list__bar {
  width: 5px;
  min-height: 56px;
  border-radius: 6px;
  margin-top: 2px;
  box-shadow: 0 2px 10px rgba(var(--brand-rgb), 0.2);
}

#private .bullet-list__title {
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--text);
  margin-bottom: 8px;
}

#private .bullet-list__text {
  font-size: 0.90625rem;
  line-height: 1.72;
}

#private .bullet-list__text strong {
  color: var(--text);
  font-weight: 700;
}

/* Funnel：各段宽度随文案收缩，右对齐 */
.funnel-visual {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-end;
  width: max-content;
  max-width: 100%;
  margin-left: auto;
  margin-right: 0;
}

.funnel-visual__layer {
  text-align: center;
  font-size: 0.8125rem;
  font-weight: 700;
  color: #fff;
  padding: 12px 20px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--brand-soft), var(--brand));
  box-shadow: 0 6px 20px rgba(var(--brand-rgb), 0.18);
  width: fit-content;
  max-width: 100%;
  box-sizing: border-box;
}

.funnel-visual__layer--1 {
  opacity: 1;
}

.funnel-visual__layer--2 {
  opacity: 0.97;
}

.funnel-visual__layer--3 {
  opacity: 0.94;
}

.funnel-visual__layer--4 {
  opacity: 0.91;
}

/* Map：无卡片投影与边框，轨道与页面底平接 */
.map-placeholder {
  margin: 0 auto;
  width: 100%;
  background: transparent;
  border: none;
  box-shadow: none;
}

.map-placeholder__stage {
  max-width: min(640px, 100%);
  margin: 0 auto;
  padding: 4% 2% 8%;
  overflow: visible;
  background: transparent;
  border: none;
  box-shadow: none;
}

.map-placeholder__svg {
  width: 100%;
  height: auto;
  display: block;
  background: transparent;
  border: none;
  outline: none;
  box-shadow: none;
  filter: none;
}

.map-placeholder__planets--static {
  display: none;
}

@media (prefers-reduced-motion: reduce) {
  .map-placeholder__planets--motion {
    display: none;
  }

  .map-placeholder__planets--static {
    display: block;
  }

  .map-placeholder__svg {
    transform: none;
    filter: none;
  }
}

.map-placeholder__henan-img {
  mix-blend-mode: multiply;
  opacity: 1;
  pointer-events: none;
}

@media (max-width: 720px) {
  #coverage .section-head {
    max-width: 100%;
  }

  #coverage .section-head__subtitle {
    max-width: 100%;
    text-align: left;
  }

  .map-placeholder__stage {
    padding: 0 0 6%;
  }
}

/* Reasons */
.reason-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.reason-card {
  text-align: center;
}

.reason-card__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 18px;
  border-radius: 50%;
  border: 2px solid var(--brand);
  color: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
}

.reason-card__title {
  margin: 0 0 10px;
  font-size: 1.0625rem;
}

.reason-card__text {
  margin: 0 auto;
  max-width: 34ch;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* CTA band */
.cta-band {
  padding: 64px var(--pad-inline);
  background: linear-gradient(
    120deg,
    var(--brand) 0%,
    var(--brand-mid) 42%,
    var(--brand-dark) 100%
  );
  position: relative;
  overflow: hidden;
}

.cta-band::before {
  content: "";
  position: absolute;
  inset: -40% -20%;
  background: radial-gradient(
    ellipse at 30% 30%,
    rgba(255, 255, 255, 0.12),
    transparent 50%
  );
  pointer-events: none;
}

.cta-band__inner {
  position: relative;
  max-width: var(--max);
  margin: 0 auto;
}

.cta-band__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px 48px;
  flex-wrap: wrap;
}

.cta-band__copy {
  flex: 1 1 280px;
  min-width: 0;
  text-align: left;
}

.cta-band__title {
  margin: 0 0 12px;
  font-size: clamp(1.25rem, 2.5vw, 1.65rem);
  font-weight: 800;
  color: #fff;
}

.cta-band__sub {
  margin: 0 0 28px;
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.9375rem;
  max-width: var(--measure-prose);
}

.cta-band__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-start;
}

.cta-band__qr {
  margin: 0;
  flex-shrink: 0;
  text-align: center;
}

.cta-band__qr-img {
  display: block;
  width: 148px;
  height: auto;
  max-width: 100%;
  border-radius: 10px;
  background: #fff;
  padding: 8px;
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.18);
}

.cta-band__qr-cap {
  margin: 10px 0 0;
  font-size: 0.8125rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
}

@media (max-width: 720px) {
  .cta-band__row {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .cta-band__copy {
    text-align: center;
  }

  .cta-band__sub {
    margin-left: auto;
    margin-right: auto;
  }

  .cta-band__actions {
    justify-content: center;
  }
}

/* Company */
.company-grid {
  display: grid;
  gap: 20px;
}

.company-block p {
  margin: 0 0 14px;
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

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

.company-block strong {
  color: var(--text);
}

.company-block--note {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 18px 18px 16px;
  border: 1px solid var(--border);
}

.company-block--note p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.scope-list {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  max-width: var(--measure-relaxed);
}

.scope-list li {
  margin-bottom: 14px;
}

.scope-list li:last-child {
  margin-bottom: 0;
}

.scope-list strong {
  color: var(--text);
}

/* —— About Us（品牌页） —— */
.section__inner--about {
  max-width: var(--measure-column);
  margin: 0 auto;
}

.about-page__head {
  text-align: center;
  margin-bottom: 28px;
}

.about-page__title {
  margin: 0 0 8px;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--text);
  letter-spacing: 0.02em;
}

.about-page__title-en {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--text-muted);
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.about-page__intro {
  margin: 0 auto;
  max-width: var(--measure-prose);
  text-align: center;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text);
}

.about-page__intro + .about-page__intro {
  margin-top: 1.25em;
  margin-bottom: 40px;
}

.about-page__head + .about-page__intro {
  margin-bottom: 0;
}

.about-page__intro strong {
  font-weight: 700;
  color: var(--text);
}

.about-page__figure {
  margin: 0 0 48px;
  padding: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(26, 26, 30, 0.1);
  border: 1px solid var(--border);
  background: #f5f5f7;
}

.about-page__img {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: middle;
}

.about-page__vmv {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  text-align: center;
}

.vmv-card {
  padding: 28px 20px 32px;
  border-left: 1px solid var(--border);
}

.vmv-card:first-child {
  border-left: none;
}

.vmv-card__icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 16px;
  border-radius: 14px;
  background: var(--brand-weak);
  color: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
}

.vmv-card__label {
  margin: 0 0 12px;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text);
}

.vmv-card__text {
  margin: 0 auto;
  max-width: 40ch;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

@media (max-width: 720px) {
  .about-page__vmv {
    grid-template-columns: 1fr;
  }

  .vmv-card {
    border-left: none;
    border-top: 1px solid var(--border);
    padding: 24px 12px 8px;
  }

  .vmv-card:first-child {
    border-top: none;
    padding-top: 0;
  }

  .about-page__intro {
    text-align: left;
    max-width: min(var(--measure-prose), 100%);
  }

  .about-page__head {
    text-align: left;
  }
}

/* Footer */
.site-footer {
  padding: 40px var(--pad-inline) 32px;
  background: var(--logo-black);
  color: #a8adb8;
  font-size: 0.875rem;
}

.site-footer__qr {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
  margin-bottom: 28px;
}

.qr-placeholder {
  width: 100px;
  height: 100px;
  background: #fff;
  border-radius: 8px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 6px;
  font-size: 0.625rem;
  color: var(--text-muted);
  text-align: center;
  border: 1px solid #333;
}

.qr-placeholder span {
  line-height: 1.2;
}

.site-footer__tag {
  text-align: center;
  color: #e8eaef;
  font-size: 0.8125rem;
  margin: 0 0 16px;
}

.site-footer__inner {
  max-width: var(--max);
  margin: 0 auto;
  text-align: center;
}

.site-footer p {
  margin: 0 0 8px;
}

.site-footer__links {
  margin-bottom: 20px;
}

.site-footer__record {
  margin-top: 8px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.8125rem;
  line-height: 1.6;
  color: #8c919c;
}

.site-footer__icp-line {
  margin: 0 0 10px;
}

.site-footer__police-line {
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px;
}

.site-footer__police-icon {
  display: block;
  flex-shrink: 0;
}

.site-footer__links a {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
}

.site-footer__links a:hover {
  text-decoration: underline;
  color: var(--brand-light);
}

.site-footer__record a.site-footer__icp,
.site-footer__record a.site-footer__police {
  color: #c5c8ce;
  font-weight: 400;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.site-footer__record a.site-footer__icp:hover,
.site-footer__record a.site-footer__police:hover {
  color: var(--brand-light);
}

/* —— Responsive —— */
@media (min-width: 721px) {
  .site-header__inner {
    display: grid;
    grid-template-columns: auto 1fr auto;
    grid-template-areas: "logo nav cta";
    align-items: center;
    gap: 20px;
  }

  .logo {
    grid-area: logo;
  }

  .nav {
    grid-area: nav;
    justify-self: center;
  }

  .header-cta {
    grid-area: cta;
    margin-left: 0;
  }

  .menu-toggle {
    display: none;
  }
}

@media (min-width: 960px) {
  .company-grid {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: start;
  }
}

@media (max-width: 960px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

@media (max-width: 720px) {
  .hero--split .hero__grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .hero__visual {
    order: -1;
    min-height: 200px;
  }

  .split,
  .split--reverse {
    grid-template-columns: 1fr;
    direction: ltr;
  }

  /* 覆盖桌面端 minmax(260px,…) 双列，避免窄屏横向溢出 */
  #speed .split,
  #channels .split,
  #private .split {
    grid-template-columns: 1fr;
    max-width: 100%;
  }

  .split__media {
    min-height: 220px;
  }

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

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

  .float-bar {
    display: none;
  }

  .header-cta {
    padding: 7px 14px;
    font-size: 0.8125rem;
  }

  .menu-toggle {
    display: block;
  }

  /* 顶栏随菜单增高，整块不透明白底；首行留出安全区与呼吸间距 */
  .site-header {
    height: auto;
    min-height: 0;
    background: #fff;
    backdrop-filter: none;
  }

  .site-header__inner {
    flex-wrap: wrap;
    padding-top: max(6px, env(safe-area-inset-top, 0px));
    padding-bottom: 6px;
  }

  .nav {
    order: 4;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 0 16px;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transition: max-height 0.25s ease, opacity 0.2s ease;
    background: var(--surface);
    border-top: 1px solid var(--border);
  }

  .nav.is-open {
    max-height: 480px;
    opacity: 1;
    pointer-events: auto;
  }

  .nav__link {
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
  }

  .nav__link--active::after {
    display: none;
  }

  .nav__dropdown {
    border-bottom: 1px solid var(--border);
  }

  .nav__dropdown-toggle {
    width: 100%;
    justify-content: space-between;
    padding: 14px 0;
  }

  .nav__dropdown-panel {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: 1px solid var(--border);
    padding: 8px 0 8px 12px;
    display: none;
    background: var(--brand-weak);
    border-radius: var(--radius);
    margin: 4px 0 0;
  }

  .nav__dropdown.is-open .nav__dropdown-panel {
    display: block;
  }

  body.nav-open {
    overflow: hidden;
  }
}