/* 艺博爱邻官网 — 简洁科技感 + 真实素材 */
:root {
  --brand-blue: #0080ff;
  --brand-violet: #7c3aed;
  --brand-teal: #14b8a6;
  --brand-gradient: linear-gradient(135deg, #0080ff 0%, #7c3aed 48%, #14b8a6 100%);
  --text-primary: #0b1220;
  --text-secondary: #3d4b63;
  --text-muted: #64748b;
  --line: rgba(15, 40, 80, 0.1);
  --line-strong: rgba(0, 128, 255, 0.32);
  --glass: rgba(255, 255, 255, 0.58);
  --glass-border: rgba(255, 255, 255, 0.7);
  --nav-h: 4rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --font: "Plus Jakarta Sans", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-display: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --radius: 16px;
}

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

html {
  height: 100%;
}

body {
  margin: 0;
  height: 100%;
  font-family: var(--font);
  color: var(--text-primary);
  background: #dfe8f6;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

/* —— Atmosphere —— */
.atmosphere {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  background: #e7eef9;
}

.atmosphere__photo {
  position: absolute;
  inset: -4%;
  width: 108%;
  height: 108%;
  object-fit: cover;
  opacity: 0.42;
  filter: saturate(1.05) blur(0.5px);
  animation: photo-drift 36s ease-in-out infinite alternate;
}

.atmosphere__veil {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(closest-side at 18% 20%, rgba(0, 128, 255, 0.22), transparent 70%),
    radial-gradient(closest-side at 85% 15%, rgba(124, 58, 237, 0.16), transparent 65%),
    radial-gradient(closest-side at 70% 85%, rgba(20, 184, 166, 0.14), transparent 60%),
    linear-gradient(180deg, rgba(244, 248, 255, 0.72), rgba(236, 245, 242, 0.78));
}

.atmosphere__grid {
  position: absolute;
  inset: 0;
  opacity: 0.28;
  background-image:
    linear-gradient(rgba(15, 40, 80, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 40, 80, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 75% 65% at 50% 40%, #000 15%, transparent 75%);
}

.atmosphere__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.45;
}

.atmosphere__glow--a {
  width: min(46vw, 480px);
  height: min(46vw, 480px);
  top: -10%;
  right: -8%;
  background: rgba(0, 128, 255, 0.4);
  animation: glow-a 20s ease-in-out infinite alternate;
}

.atmosphere__glow--b {
  width: min(40vw, 420px);
  height: min(40vw, 420px);
  bottom: -12%;
  left: -10%;
  background: rgba(20, 184, 166, 0.32);
  animation: glow-b 24s ease-in-out infinite alternate;
}

@keyframes photo-drift {
  from {
    transform: scale(1) translate(0, 0);
  }
  to {
    transform: scale(1.04) translate(-1.2%, 0.8%);
  }
}

@keyframes glow-a {
  from {
    transform: translate(0, 0);
  }
  to {
    transform: translate(-3%, 5%);
  }
}

@keyframes glow-b {
  from {
    transform: translate(0, 0);
  }
  to {
    transform: translate(4%, -3%);
  }
}

/* —— Nav —— */
.nav {
  position: fixed;
  top: 1rem;
  left: 1rem;
  right: 1rem;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: var(--nav-h);
  padding: 0.5rem 1rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.66);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(18px) saturate(1.25);
  box-shadow: 0 12px 40px rgba(15, 40, 80, 0.08);
}

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 800;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
  cursor: pointer;
}

.nav__logo {
  width: 2rem;
  height: 2rem;
  object-fit: contain;
  flex-shrink: 0;
}

.nav__brand span {
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav__links {
  display: none;
  flex: 1;
  justify-content: center;
  gap: 1.75rem;
}

.nav__links a {
  color: #333333;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.2s ease;
}

.nav__links a:hover,
.nav__links a:focus-visible {
  color: var(--brand-blue);
}

.nav__actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav__toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0.55rem;
  border: none;
  border-radius: 999px;
  background: rgba(15, 40, 80, 0.06);
  cursor: pointer;
}

.nav__toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--text-primary);
  transition: transform 0.25s var(--ease), opacity 0.2s ease;
}

.nav.is-open .nav__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav.is-open .nav__toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav.is-open .nav__toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-backdrop {
  display: none;
}

@media (min-width: 901px) {
  .nav__toggle {
    display: none;
  }

  .nav__links {
    display: flex;
  }

  .nav {
    left: max(1.5rem, calc(50% - 580px));
    right: max(1.5rem, calc(50% - 580px));
    padding: 0.5rem 1.25rem;
  }
}

@media (max-width: 900px) {
  .nav__links {
    display: none;
    position: fixed;
    top: calc(var(--nav-h) + 1.35rem);
    left: 1rem;
    right: 1rem;
    z-index: 45;
    flex-direction: column;
    gap: 0;
    padding: 0.5rem;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(18px);
    box-shadow: 0 18px 40px rgba(15, 40, 80, 0.12);
  }

  .nav.is-open .nav__links {
    display: flex;
  }

  .nav__links a {
    padding: 0.85rem 1rem;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
  }

  .nav__links a:active,
  .nav__links a:hover {
    background: rgba(0, 128, 255, 0.08);
  }

  .nav-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 38;
    background: rgba(15, 23, 42, 0.28);
  }

  .nav-backdrop[hidden] {
    display: none;
  }

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

/* —— Buttons —— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1.15rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  transition: filter 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.btn--primary {
  color: #fff;
  background: var(--brand-gradient);
  box-shadow: 0 10px 28px rgba(0, 128, 255, 0.28);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  filter: brightness(1.06);
  box-shadow: 0 12px 32px rgba(124, 58, 237, 0.28);
}

.btn--ghost {
  color: var(--text-secondary);
  background: transparent;
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  color: var(--text-primary);
}

.btn--glass {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.55);
  border-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
}

.btn--glass:hover,
.btn--glass:focus-visible {
  background: rgba(255, 255, 255, 0.85);
  border-color: var(--line-strong);
}

.btn--lg {
  padding: 0.9rem 1.6rem;
  font-size: 1rem;
}

.btn--block {
  width: 100%;
}

.btn:focus-visible {
  outline: 2px solid var(--brand-blue);
  outline-offset: 3px;
}

/* —— Fullpage —— */
.fullpage {
  position: relative;
  z-index: 1;
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
}

.section {
  position: relative;
  min-height: 100%;
  height: 100%;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-h) + 3rem) 1.25rem 3rem;
  overflow: hidden;
}

.section__inner {
  width: min(1100px, 100%);
  position: relative;
  z-index: 1;
}

.section__inner--narrow {
  width: min(720px, 100%);
}

.section__inner--wide {
  width: min(1180px, 100%);
}

.section__inner--film {
  width: min(1360px, 100%);
}

.section__head {
  margin-bottom: 1.75rem;
  max-width: 38rem;
}

.section__head--center {
  margin-left: auto;
  margin-right: auto;
  /*max-width: 36rem;*/
  text-align: center;
}

.section__head h2 {
  margin: 0.45rem 0 0;
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.section__lead {
  margin: 0.85rem 0 0;
  color: var(--text-secondary);
  font-size: 1.02rem;
  line-height: 1.65;
}

.eyebrow {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* —— Hero（首屏：品牌 + 大图 + 品宣，居中） —— */
.section--hero {
  padding: 0;
}

.section--hero .section__inner {
  max-width: none;
  width: 100%;
}

.hero-stage {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-stage__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 45%;
  transform: scale(1.03);
  animation: hero-ken 22s ease-in-out infinite alternate;
}

.hero-stage__shade {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 50% 48%, rgba(10, 18, 32, 0.5) 0%, rgba(10, 18, 32, 0.22) 45%, transparent 72%),
    linear-gradient(180deg, rgba(10, 18, 32, 0.5) 0%, rgba(10, 18, 32, 0.22) 32%, rgba(10, 18, 32, 0.32) 68%, rgba(10, 18, 32, 0.58) 100%);
}

.hero {
  position: relative;
  z-index: 1;
  min-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-h) + 2rem) clamp(1.25rem, 5vw, 4rem) 5.5rem;
  text-align: center;
}

.hero__copy {
  max-width: 48rem;
  margin: 0 auto;
}

.hero__logo {
  width: clamp(4.5rem, 10vw, 5.75rem);
  height: auto;
  margin: 0 auto 1rem;
  filter: drop-shadow(0 12px 28px rgba(0, 0, 0, 0.35));
}

.brand-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(3.4rem, 9vw, 5.6rem);
  line-height: 1.05;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #fff;
  -webkit-text-stroke: 0.045em rgba(6, 12, 28, 0.55);
  paint-order: stroke fill;
  text-shadow:
    0 1px 2px rgba(0, 0, 0, 0.55),
    0 6px 20px rgba(0, 0, 0, 0.4),
    0 16px 48px rgba(0, 0, 0, 0.35);
}

.hero__slogan {
  margin: 1.15rem auto 0;
  max-width: 22em;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.4vw, 1.65rem);
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.96);
  -webkit-text-stroke: 0.03em rgba(6, 12, 28, 0.4);
  paint-order: stroke fill;
  text-shadow:
    0 1px 2px rgba(0, 0, 0, 0.5),
    0 8px 24px rgba(0, 0, 0, 0.35);
}

.hero-pillars {
  list-style: none;
  margin: 2rem auto 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.75rem 0.35rem;
}

.hero-pillars li {
  position: relative;
  padding: 0.55rem 1.15rem;
  font-family: var(--font-display);
  font-size: clamp(0.95rem, 1.8vw, 1.1rem);
  font-weight: 600;
  letter-spacing: 0.22em;
  color: rgba(255, 255, 255, 0.96);
  -webkit-text-stroke: 0.025em rgba(6, 12, 28, 0.35);
  paint-order: stroke fill;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

.hero__cta {
  display: inline-flex;
  margin-top: 2rem;
  box-shadow:
    0 10px 28px rgba(0, 128, 255, 0.28),
    0 4px 20px rgba(0, 0, 0, 0.25);
}

.hero-pillars li:not(:last-child)::after {
  content: "";
  position: absolute;
  right: -0.2rem;
  top: 50%;
  width: 1px;
  height: 0.9em;
  transform: translateY(-50%);
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.55), transparent);
}

.section--hero .scroll-hint {
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  backdrop-filter: blur(10px);
}

@keyframes hero-ken {
  from {
    transform: scale(1.03) translate(0, 0);
  }
  to {
    transform: scale(1.07) translate(-0.8%, 0.5%);
  }
}

.scroll-hint {
  position: absolute;
  left: 50%;
  bottom: 1.4rem;
  transform: translateX(-50%);
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.35rem;
  height: 2.35rem;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(8px);
  color: var(--brand-blue);
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.scroll-hint:hover,
.scroll-hint:focus-visible {
  background: #fff;
  border-color: var(--brand-violet);
  color: var(--brand-violet);
}

/* —— Pain：四列胶片 · 同题双镜（上乱下顺，文案沉入画面） —— */
.pain-film {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  align-items: stretch;
}

@media (min-width: 720px) {
  .pain-film {
    grid-template-columns: 1fr 1fr;
    gap: 1.15rem 1.25rem;
  }
}

@media (min-width: 1100px) {
  .pain-film {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    column-gap: 1.1rem;
    row-gap: 0;
  }
}

.pain-col {
  min-width: 0;
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 0.85rem;
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 0.55s var(--ease),
    transform 0.55s var(--ease);
  transition-delay: calc(80ms + var(--i, 0) * 110ms);
}

.section.is-active .pain-col {
  opacity: 1;
  transform: none;
}

.pain-col__shot {
  margin: 0;
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: rgba(15, 40, 80, 0.04);
}

@media (max-width: 719px) {
  .pain-col__shot {
    aspect-ratio: 16 / 9;
  }
}

.pain-col__shot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform 0.7s var(--ease), filter 0.45s ease;
}

.pain-col__shot--bad img {
  filter: saturate(0.68) brightness(0.88) contrast(0.97);
  border-radius:15px;
}

.pain-col__shot--good img {
  filter: saturate(1.08) brightness(1.04);
  border-radius:15px;
}

.pain-col:hover .pain-col__shot--bad img {
  transform: scale(1.02);
}

.pain-col:hover .pain-col__shot--good img {
  transform: scale(1.04);
}

/* 居中悬浮文案：深色字 + 浅描边，无暗色团 */
.pain-col__caption {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: grid;
  place-items: center;
  margin: 0;
  padding: 0.85rem 1rem;
  text-align: center;
  font-size: clamp(0.82rem, 1.05vw, 0.95rem);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.01em;
  pointer-events: none;
  background: none;
}

.pain-col__shot--bad .pain-col__caption {
  color: #ffffff;
  font-weight: 600;
  /*text-shadow:*/
  /*  0 1px 0 rgba(255, 255, 255, 0.85),*/
  /*  0 0 12px rgba(255, 255, 255, 0.55);*/
}

.pain-col__shot--good .pain-col__caption {
  color: #0f172a;
  font-size: clamp(0.9rem, 1.2vw, 1.05rem);
  font-weight: 800;
  letter-spacing: -0.015em;
  text-shadow:
    0 1px 0 rgba(255, 255, 255, 0.9),
    0 0 14px rgba(255, 255, 255, 0.65);
}

.pain-col__shot--good::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.35);
}

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

  .pain-col__shot img {
    transition: none;
  }

  .pain-col:hover .pain-col__shot img {
    transform: none;
  }
}

/* —— Flow：六等分场景列 + 窄步骤胶囊 —— */
.flow-pipeline {
  position: relative;
  margin: 0.35rem 0 0;
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid var(--glass-border);
  box-shadow: 0 22px 56px rgba(15, 40, 80, 0.12);
  background: #e8eef8;
}

.flow-pipeline__track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.flow-step {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: #dfe8f6;
  padding-bottom: 0.35rem;
}

.flow-step:not(:last-child) {
  box-shadow: inset -1px 0 0 rgba(255, 255, 255, 0.55);
}

.flow-step__art {
  margin: 0;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: linear-gradient(180deg, #cfe0f4, #e8eef8);
}

.flow-step__art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform 0.7s var(--ease), filter 0.4s ease;
  filter: saturate(0.92);
}

.flow-step:has(.flow__node.is-on) .flow-step__art img,
.flow-step.is-on .flow-step__art img {
  filter: saturate(1.05);
  transform: scale(1.02);
}

.flow-step__footer {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: -1.15rem 0 0.85rem;
  min-height: 2.6rem;
}

.flow__node {
  position: relative;
  z-index: 1;
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  width: fit-content;
  max-width: calc(100% - 8px);
  margin: 0;
  padding: 0.45rem calc(0.8rem + 5px) 0.45rem calc(0.42rem + 5px);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  box-shadow: 0 10px 24px rgba(15, 40, 80, 0.12);
  text-align: left;
  opacity: 0.34;
  transform: translateY(4px);
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease), border-color 0.25s ease, box-shadow 0.25s ease;
}

.flow__node.is-on {
  opacity: 1;
  transform: none;
  border-color: rgba(0, 128, 255, 0.42);
  box-shadow: 0 12px 28px rgba(0, 128, 255, 0.18);
}

.flow__node span {
  width: 1.55rem;
  height: 1.55rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.78rem;
  font-weight: 700;
  color: #fff;
  background: var(--brand-gradient);
  flex-shrink: 0;
}

.flow__node strong {
  font-size: clamp(0.8rem, 1.05vw, 0.95rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  white-space: nowrap;
}

.flow__edge {
  position: absolute;
  top: 50%;
  right: -12px;
  z-index: 3;
  width: 24px;
  height: 4px;
  border-radius: 999px;
  background: rgba(100, 116, 139, 0.35);
  opacity: 0.55;
  pointer-events: none;
  transform: translateY(-50%);
  transition: opacity 0.35s ease, background 0.35s ease, box-shadow 0.35s ease, transform 0.35s ease;
}

.flow__edge.is-on {
  opacity: 1;
  background: linear-gradient(90deg, #0080ff, #14b8a6);
  box-shadow: 0 0 12px rgba(0, 128, 255, 0.45);
  transform: translateY(-50%) scaleX(1.05);
}

@media (max-width: 900px) {
  .flow-pipeline__track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .flow-step:nth-child(3) {
    box-shadow: none;
  }

  .flow-step:nth-child(3) .flow__edge,
  .flow-step:nth-child(6) .flow__edge {
    display: none;
  }
}

@media (max-width: 719px) {
  .flow-pipeline__track {
    grid-template-columns: 1fr;
  }

  .flow-step {
    display: grid;
    grid-template-columns: 112px 1fr;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.85rem;
    box-shadow: inset 0 -1px 0 rgba(15, 40, 80, 0.06);
  }

  .flow-step__art {
    aspect-ratio: 1;
    border-radius: 12px;
  }

  .flow-step__footer {
    margin: 0;
    min-height: 0;
    justify-content: flex-start;
  }

  .flow__node {
    margin: 0;
    transform: none;
    max-width: 100%;
  }

  .flow__edge {
    display: none;
  }
}

.media-band {
  margin: 0;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--glass-border);
  box-shadow: 0 18px 48px rgba(15, 40, 80, 0.12);
  background: rgba(255, 255, 255, 0.35);
  position: relative;
}

.media-band::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(236, 244, 255, 0.28), rgba(255, 255, 255, 0.18) 45%, rgba(236, 244, 255, 0.35)),
    radial-gradient(ellipse 80% 70% at 50% 40%, transparent 30%, rgba(255, 255, 255, 0.22) 100%);
}

.media-band img {
  width: 100%;
  height: clamp(140px, 24vh, 240px);
  object-fit: cover;
  object-position: top center;
  /*filter: blur(3.5px) saturate(0.92);*/
  transform: scale(1.06);
}

/* —— Ends：四端纯场景插画 —— */
.ends-stage {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem 1.25rem;
  align-items: start;
  padding: 0.5rem 0 0;
}

@media (min-width: 700px) {
  .ends-stage {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .ends-stage {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.5rem 1.35rem;
  }
}

.end-card {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  text-align: left;
  min-width: 0;
}

.end-card__art {
  margin: 0 0 1rem;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: 18px;
  background: linear-gradient(145deg, rgba(0, 128, 255, 0.08), rgba(20, 184, 166, 0.1) 50%, rgba(124, 58, 237, 0.08));
  border: 1px solid rgba(15, 40, 80, 0.08);
  box-shadow: 0 18px 40px rgba(15, 40, 80, 0.08);
}

.end-card__art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform 0.7s var(--ease);
}

.end-card:hover .end-card__art img {
  transform: scale(1.03);
}

.end-card h3 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.end-card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.55;
}

/* —— Capabilities —— */
.cap-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .cap-grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 960px) {
  .cap-grid--solo { grid-template-columns: repeat(3, 1fr); }
}

.cap {
  padding: 1rem 1rem 1rem 1.05rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
}

.cap::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--brand-gradient);
}

.cap h3 { margin: 0 0 0.3rem; font-size: 1rem; }
.cap p { margin: 0; color: var(--text-secondary); line-height: 1.5; font-size: 0.9rem; }

/* —— Alliance：物业创收（场景 + 三步路径 + 三点价值） —— */
.alliance-scene {
  margin: 0 0 1.15rem;
  width: 100%;
  aspect-ratio: 2.6 / 1;
  max-height: min(28vh, 280px);
  overflow: hidden;
  background: rgba(15, 40, 80, 0.04);
}

.alliance-scene img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 45%;
  display: block;
  border-radius: 15px;
}

.alliance-flow {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 800px) {
  .alliance-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem 1.5rem;
    align-items: start;
  }
}

.alliance-flow__step {
  min-width: 0;
  opacity: 0;
  transform: translateY(12px);
  transition:
    opacity 0.5s var(--ease),
    transform 0.5s var(--ease);
  transition-delay: calc(80ms + var(--i, 0) * 100ms);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.section.is-active .alliance-flow__step {
  opacity: 1;
  transform: none;
}

.alliance-flow__n {
  display: inline-grid;
  place-items: center;
  width: 1.55rem;
  height: 1.55rem;
  margin-bottom: 0.55rem;
  border-radius: 50%;
  font-size: 0.8rem;
  font-weight: 800;
  color: #fff;
  background: var(--brand-gradient);
}

.alliance-flow__step strong {
  display: block;
  margin: 0 0 0.3rem;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.alliance-flow__step p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

.alliance-points {
  list-style: none;
  margin: 0;
  padding: 1.1rem 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.95rem 1.5rem;
}

@media (min-width: 800px) {
  .alliance-points {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.alliance-points li {
  display: grid;
  gap: 0.25rem;
  min-width: 0;
}

.alliance-points strong {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-primary);
}

.alliance-points span {
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--text-secondary);
}

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

/* —— Contact —— */
.contact {
  display: grid;
  gap: 1.5rem;
  width: min(920px, 100%);
  margin-inline: auto;
}

.contact-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 800px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    align-items: stretch;
  }
}

.contact-info,
.contact-form {
  padding: 1.5rem;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(18px);
  box-shadow: 0 20px 50px rgba(15, 40, 80, 0.08);
}

.contact-info h3,
.contact-form h3 {
  margin: 0 0 1.1rem;
  font-size: 1.1rem;
}

.contact-qr {
  margin: 0 0 1.25rem;
  display: grid;
  justify-items: center;
  gap: 0.55rem;
  text-align: center;
}

.contact-qr img {
  width: 168px;
  height: 168px;
  object-fit: contain;
  background: #fff;
  padding: 0.45rem;
  border: 1px solid rgba(15, 40, 80, 0.08);
}

.contact-qr figcaption {
  margin: 0;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.contact-info ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}

.contact-info li {
  display: grid;
  gap: 0.25rem;
}

.contact-info__label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.contact-info a {
  color: var(--brand-blue);
  font-weight: 600;
}

.contact-info a:hover {
  text-decoration: underline;
}

.contact-info__note {
  margin: 1.25rem 0 0;
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.contact-form {
  display: grid;
  gap: 0.95rem;
  /*align-content: start;*/
  align-content: space-between;
}

.contact-form label {
  display: grid;
  gap: 0.35rem;
}

.contact-form span {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.field-optional {
  font-weight: 500;
  color: var(--text-muted);
}

.contact-form input {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  color: var(--text-primary);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.contact-form input:focus {
  outline: none;
  border-color: var(--brand-blue);
  box-shadow: 0 0 0 3px rgba(0, 128, 255, 0.14);
}

.contact-form .btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.form-note {
  margin: 0;
  min-height: 1.25rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.form-note--ok {
  color: var(--brand-teal);
}

.form-note--error {
  color: #dc2626;
}

.site-footer {
  display: grid;
  gap: 0.85rem;
  justify-items: center;
  margin-top: 0.25rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
  color: var(--text-muted);
  font-size: 0.875rem;
  text-align: center;
}

.site-footer__brand {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  align-items: center;
  justify-content: center;
}

.site-footer__logo {
  width: 1.5rem;
  height: 1.5rem;
  object-fit: contain;
}

.site-footer strong { color: var(--text-primary); }

.site-beian {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  justify-content: center;
  align-items: center;
  font-size: 0.72rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.site-beian a {
  color: var(--text-muted);
  cursor: pointer;
}

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

.site-beian__police::before {
  content: "";
  display: inline-block;
  width: 0.85rem;
  height: 0.85rem;
  margin-right: 0.25rem;
  vertical-align: -0.1rem;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Ccircle cx='10' cy='10' r='9' fill='%23c8161d'/%3E%3Ctext x='10' y='14' text-anchor='middle' font-size='10' fill='%23fff' font-family='sans-serif'%3E警%3C/text%3E%3C/svg%3E") center / contain no-repeat;
}

/* —— Progress —— */
.progress {
  position: fixed;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 35;
  display: none;
  flex-direction: column;
  gap: 0.4rem;
}

@media (min-width: 901px) {
  .progress {
    display: flex;
  }
}

.progress__dot {
  width: 6px;
  height: 6px;
  padding: 0;
  border: none;
  border-radius: 999px;
  background: rgba(100, 116, 139, 0.35);
  cursor: pointer;
  transition: height 0.25s var(--ease), background 0.2s ease;
}

.progress__dot.is-active {
  height: 1.15rem;
  background: var(--brand-gradient);
}

.progress__dot:focus-visible {
  outline: 2px solid var(--brand-blue);
  outline-offset: 2px;
}

/* —— Reveal —— */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.45s var(--ease), transform 0.45s var(--ease);
}

.reveal--delay,
.reveal--d1 {
  transition-delay: 0.06s;
}
.reveal--d2 {
  transition-delay: 0.1s;
}
.reveal--d3 {
  transition-delay: 0.14s;
}
.reveal--d4 {
  transition-delay: 0.18s;
}
.reveal--d5 {
  transition-delay: 0.22s;
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .atmosphere__photo,
  .atmosphere__glow--a,
  .atmosphere__glow--b,
  .hero-stage__img {
    animation: none !important;
  }
  .media-band img,
  .end-card__art img,
  .flow-step__art img,
  .pain-col__shot img {
    filter: none;
    transform: none;
  }
  .end-card:hover .end-card__art img,
  .pain-col:hover .pain-col__shot img,
  .flow-step.is-on .flow-step__art img,
  .flow-step:has(.flow__node.is-on) .flow-step__art img {
    transform: none;
  }
  .fullpage {
    scroll-snap-type: none;
    height: auto;
    overflow: visible;
  }
  body {
    overflow: auto;
  }
  .section {
    height: auto;
    min-height: 100vh;
    scroll-snap-align: none;
  }
  .hero {
    min-height: 100vh;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .flow__node,
  .flow__edge {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* —— Mobile：长页滚动 + 内容收紧（≤900px） —— */
@media (max-width: 900px) {
  html,
  body {
    height: auto;
    min-height: 100%;
    overflow-x: hidden;
    overflow-y: auto;
  }

  .fullpage {
    height: auto;
    overflow: visible;
    scroll-snap-type: none;
  }

  .section {
    height: auto;
    min-height: 0;
    scroll-snap-align: none;
    scroll-snap-stop: normal;
    overflow: visible;
    align-items: flex-start;
    padding: calc(var(--nav-h) + 1.35rem) 1rem 2.25rem;
  }

  .section--hero {
    min-height: 100dvh;
    align-items: center;
  }

  .section__head {
    margin-bottom: 1.15rem;
  }

  .section__head h2,
  .eyebrow {
    font-size: clamp(1.25rem, 5.5vw, 1.65rem);
  }

  .section__lead {
    font-size: 0.95rem;
  }

  .brand-title {
    font-size: clamp(2.4rem, 12vw, 3.4rem);
  }

  .hero__slogan {
    font-size: 1.05rem;
  }

  .hero-pillars {
    gap: 0.45rem 0.85rem;
    font-size: 0.88rem;
  }

  .hero__cta {
    width: min(100%, 220px) !important;
  }

  .nav {
    top: 0.65rem;
    left: 0.65rem;
    right: 0.65rem;
    min-height: 3.25rem;
    padding: 0.35rem 0.55rem 0.35rem 0.75rem;
  }

  .nav__brand span {
    font-size: 1rem;
  }

  .nav__actions .btn--primary {
    padding: 0.45rem 0.85rem;
    font-size: 0.8rem;
  }

  /* 产品双镜 */
  .pain-film {
    gap: 1.25rem;
  }

  .pain-col {
    gap: 0.55rem;
  }

  .pain-col__shot {
    aspect-ratio: 16 / 10;
  }

  .pain-col__caption {
    font-size: 0.82rem;
    padding: 0.65rem 0.75rem;
  }

  .pain-col__shot--good .pain-col__caption {
    font-size: 0.88rem;
  }

  /* 创收 */
  .alliance-scene {
    aspect-ratio: 16 / 9;
    max-height: 160px;
    margin-bottom: 1rem;
  }

  .alliance-flow {
    gap: 0.85rem;
    margin-bottom: 1.15rem;
  }

  .alliance-flow__step {
    align-items: flex-start;
  }

  .alliance-points {
    padding-top: 0.85rem;
    gap: 0.75rem;
  }

  /* 联系 */
  .contact {
    width: 100%;
    gap: 1.15rem;
  }

  .contact-info,
  .contact-form {
    padding: 1.15rem;
    border-radius: 16px;
  }

  .contact-qr img {
    width: 148px;
    height: 148px;
  }

  .site-footer {
    margin-top: 0.5rem;
  }

  .site-beian {
    flex-direction: column;
    gap: 0.25rem;
  }

  /* 能力 / 四端略收 */
  .cap-grid {
    gap: 0.65rem;
  }

  .end-card__art {
    aspect-ratio: 16 / 10;
    border-radius: 14px;
  }

  .scroll-hint {
    bottom: 1rem;
  }

  /* 手机不显示氛围网格，避免杂乱 */
  .atmosphere__grid {
    display: none;
  }

  /* 长页滚动：内容常显，避免换屏时 is-active 被抢走导致整段消失 */
  .reveal,
  .pain-col,
  .alliance-flow__step {
    opacity: 1;
    transform: none;
  }
}