:root {
  --anim-duration-fast: 0.4s;
  --anim-duration-base: 0.7s;
  --anim-duration-slow: 1.0s;
  --anim-ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --anim-ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --anim-ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --anim-stagger: 80ms;
}

/* 英雄区加载序列 */
.hero-deco {
  position: absolute;
  top: 88px;
  bottom: 88px;
  left: max(32px, calc((100vw - 1180px) / 2));
  width: 8px;
  border-radius: 999px;
  animation: heroDecoIn 0.7s var(--anim-ease-out) 0.1s both;
}

.page-xiaotun .hero-deco {
  background: var(--color-xiaotun);
}

.page-ruhe .hero-deco {
  background: var(--color-ruhe);
}

.xiaotun-hero::before,
.ruhe-hero::before {
  content: none;
}

.hero-title {
  animation: heroFadeUp 0.8s var(--anim-ease-out) 0.3s both;
}

.hero-subtitle {
  animation: heroFadeUp 0.8s var(--anim-ease-out) 0.5s both;
}

.hero-badge {
  animation: heroPop 0.6s var(--anim-ease-spring) both;
}

.hero-badge:nth-child(1) {
  animation-delay: 0.7s;
}

.hero-badge:nth-child(2) {
  animation-delay: 0.85s;
}

.hero-badge:nth-child(3) {
  animation-delay: 1s;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  margin-top: 30px;
  padding: 0 24px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  color: var(--color-bg);
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  animation:
    heroFadeUp 0.6s var(--anim-ease-out) 1s both,
    ctaPulse 2.5s ease-out 1.8s infinite;
}

.page-xiaotun .hero-cta {
  background: var(--color-xiaotun);
}

.page-ruhe .hero-cta {
  background: var(--color-ruhe);
}

@keyframes heroDecoIn {
  from {
    transform: translateX(-100%);
    opacity: 0;
  }

  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes heroFadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes heroPop {
  from {
    opacity: 0;
    transform: scale(0.7) translateY(10px);
  }

  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes ctaPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.4);
  }

  70% {
    box-shadow: 0 0 0 12px rgba(255, 255, 255, 0);
  }

  100% {
    box-shadow: 0 0 0 0 rgba(255, 255, 255, 0);
  }
}

/* 从下往上淡入（最常用，卡片/文字） */
.anim-fade-up {
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity var(--anim-duration-base) var(--anim-ease-out),
    transform var(--anim-duration-base) var(--anim-ease-out);
}

.anim-fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* 从左滑入（左侧内容块） */
.anim-slide-left {
  opacity: 0;
  transform: translateX(-50px);
  transition:
    opacity var(--anim-duration-base) var(--anim-ease-out),
    transform var(--anim-duration-base) var(--anim-ease-out);
}

.anim-slide-left.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* 从右滑入（右侧内容块） */
.anim-slide-right {
  opacity: 0;
  transform: translateX(50px);
  transition:
    opacity var(--anim-duration-base) var(--anim-ease-out),
    transform var(--anim-duration-base) var(--anim-ease-out);
}

.anim-slide-right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* 弹性弹出（字节卡片风格，有轻微超出感） */
.anim-pop {
  opacity: 0;
  transform: scale(0.88) translateY(20px);
  transition:
    opacity var(--anim-duration-base) var(--anim-ease-spring),
    transform var(--anim-duration-base) var(--anim-ease-spring);
}

.anim-pop.is-visible {
  opacity: 1;
  transform: scale(1) translateY(0);
}

/* 小屯页卡片 hover（橙色主题） */
.page-xiaotun .anim-pop.is-visible:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 16px 48px rgba(249, 115, 22, 0.18);
  border-color: var(--color-xiaotun);
  transition: transform 0.3s var(--anim-ease-spring),
              box-shadow 0.3s var(--anim-ease-smooth),
              border-color 0.2s;
}

/* 汝河页卡片 hover（青蓝主题） */
.page-ruhe .anim-pop.is-visible:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 16px 48px rgba(14, 165, 233, 0.18);
  border-color: var(--color-ruhe);
  transition: transform 0.3s var(--anim-ease-spring),
              box-shadow 0.3s var(--anim-ease-smooth),
              border-color 0.2s;
}

@keyframes systemCardIn {
  from {
    opacity: 0;
    transform: var(--card-entry-transform, translateY(40px));
  }

  to {
    opacity: 1;
    transform: translateX(0) translateY(0);
  }
}

.system-card {
  position: relative;
  overflow: hidden;
  opacity: 0;
  animation-duration: 0.8s;
  animation-timing-function: var(--anim-ease-out);
  animation-fill-mode: both;
  animation-play-state: paused;
}

.system-card:nth-child(1) {
  --card-entry-transform: translateX(-30px) translateY(30px);
  --system-card-delay: 0ms;
}

.system-card:nth-child(2) {
  --card-entry-transform: translateY(50px);
  --system-card-delay: 150ms;
}

.system-card:nth-child(3) {
  --card-entry-transform: translateX(30px) translateY(30px);
  --system-card-delay: 300ms;
}

.system-card.is-visible {
  animation-name: systemCardIn;
  animation-delay: var(--system-card-delay, 0ms);
  animation-play-state: running;
}

@keyframes tongzhuCardIn {
  from {
    opacity: 0;
    transform: var(--tongzhu-entry-transform, translateY(40px));
  }

  to {
    opacity: 1;
    transform: translateX(0) translateY(0);
  }
}

.tongzhu-card {
  overflow: hidden;
  opacity: 0;
  animation-duration: 0.9s;
  animation-fill-mode: both;
  animation-play-state: paused;
  animation-timing-function: var(--anim-ease-out);
  transition: transform 0.4s var(--anim-ease-spring);
}

.tongzhu-card:nth-child(1) {
  --tongzhu-entry-transform: translateX(-20px) translateY(-20px);
  --tongzhu-card-delay: 0ms;
}

.tongzhu-card:nth-child(2) {
  --tongzhu-entry-transform: translateY(40px);
  --tongzhu-card-delay: 100ms;
}

.tongzhu-card:nth-child(3) {
  --tongzhu-entry-transform: translateY(60px);
  --tongzhu-card-delay: 200ms;
}

.tongzhu-card:nth-child(4) {
  --tongzhu-entry-transform: translateX(20px) translateY(-20px);
  --tongzhu-card-delay: 300ms;
}

.tongzhu-card.is-visible {
  opacity: 1;
  animation-name: tongzhuCardIn;
  animation-delay: var(--tongzhu-card-delay, 0ms);
  animation-play-state: running;
}

.tongzhu-card.has-entered {
  animation: none;
  opacity: 1;
  transform: translateX(0) translateY(0);
}

.tongzhu-card.is-visible:hover {
  transform: translateY(-6px);
}

.tongzhu-card .card-image {
  transition: transform 0.5s ease;
}

.tongzhu-card:hover .card-image {
  transform: scale(1.06);
}

.tongzhu-card .card-label {
  transition: color 0.3s ease;
}

.page-xiaotun .tongzhu-card:hover .card-label {
  color: var(--color-xiaotun);
}

.page-ruhe .tongzhu-card:hover .card-label {
  color: var(--color-ruhe);
}

.system-card-bar {
  width: 0;
  height: 4px;
  margin: -30px -28px 24px;
  background: var(--system-color, var(--color-primary));
  transition: width 0.6s var(--anim-ease-out);
  transition-delay: calc(var(--system-card-delay, 0ms) + 0.1s);
}

.system-card.is-visible .system-card-bar {
  width: calc(100% + 56px);
}

.system-card .pill {
  opacity: 0;
  transform: scale(0.7) translateY(10px);
}

.system-card.is-visible .pill {
  animation: heroPop 0.45s var(--anim-ease-spring) both;
}

.system-card.is-visible .pill:nth-child(1) {
  animation-delay: calc(var(--system-card-delay, 0ms) + 0.8s);
}

.system-card.is-visible .pill:nth-child(2) {
  animation-delay: calc(var(--system-card-delay, 0ms) + 0.86s);
}

.system-card.is-visible .pill:nth-child(3) {
  animation-delay: calc(var(--system-card-delay, 0ms) + 0.92s);
}

.system-card.is-visible .pill:nth-child(4) {
  animation-delay: calc(var(--system-card-delay, 0ms) + 0.98s);
}

/* 数字计数动效（成果数字） */
.anim-counter {
  font-variant-numeric: tabular-nums;
  display: inline-block;
  min-width: 1.5em;
  text-align: center;
  transition: all 0.3s;
}

/* stagger 子元素延迟（父容器加 .stagger-children，子元素自动获得延迟） */
.stagger-children > *:nth-child(1)  { transition-delay: calc(var(--anim-stagger) * 0); }
.stagger-children > *:nth-child(2)  { transition-delay: calc(var(--anim-stagger) * 1); }
.stagger-children > *:nth-child(3)  { transition-delay: calc(var(--anim-stagger) * 2); }
.stagger-children > *:nth-child(4)  { transition-delay: calc(var(--anim-stagger) * 3); }
.stagger-children > *:nth-child(5)  { transition-delay: calc(var(--anim-stagger) * 4); }
.stagger-children > *:nth-child(6)  { transition-delay: calc(var(--anim-stagger) * 5); }
.stagger-children > *:nth-child(7)  { transition-delay: calc(var(--anim-stagger) * 6); }
.stagger-children > *:nth-child(8)  { transition-delay: calc(var(--anim-stagger) * 7); }

.section-title-reveal {
  position: relative;
  overflow: hidden;
  letter-spacing: 0.02em;
  transition:
    letter-spacing 0.8s var(--anim-ease-out),
    opacity var(--anim-duration-base) var(--anim-ease-out),
    transform var(--anim-duration-base) var(--anim-ease-out);
}

.anim-fade-up.section-title-reveal:not(.is-visible) {
  letter-spacing: 0;
}

.section-title-reveal::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--color-primary);
  transition: width 0.8s var(--anim-ease-out);
}

.section-title-reveal.is-visible::after {
  width: 60px;
}

.page-xiaotun .section-title-reveal.is-visible::after {
  background: var(--color-xiaotun);
}

.page-ruhe .section-title-reveal.is-visible::after {
  background: var(--color-ruhe);
}

/* 图片卡 hover 效果 */
.gallery-card {
  overflow: hidden;
  border-radius: var(--radius-md);
  position: relative;
  cursor: pointer;
}

.gallery-card .gallery-image {
  transition: transform 0.5s ease;
  width: 100%;
  height: 100%;
}

.gallery-card:hover .gallery-image {
  transform: scale(1.08);
}

.gallery-card .gallery-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px 16px 16px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  transform: translateY(100%);
  transition: transform 0.4s var(--anim-ease-out);
  pointer-events: none;
}

.gallery-card:hover .gallery-overlay {
  transform: translateY(0);
}

.gallery-card .gallery-overlay p {
  margin: 0;
  color: white;
  font-size: 14px;
  opacity: 0;
  transform: translateY(12px);
  transition:
    opacity 0.32s var(--anim-ease-out),
    transform 0.32s var(--anim-ease-out);
}

.gallery-card:hover .gallery-overlay p {
  opacity: 1;
  transform: translateY(0);
}

/* 灯箱 */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(0, 0, 0, 0.85);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.lightbox.is-open {
  opacity: 1;
  pointer-events: all;
}

body.lightbox-lock {
  overflow: hidden;
}

body.lightbox-lock .snap-container {
  overflow: hidden;
}

.lightbox-inner {
  max-width: 80vw;
  max-height: 80vh;
  overflow: hidden;
  background: var(--color-bg);
  border-radius: var(--radius-md);
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.35);
  transform: scale(0.9);
  transition: transform 0.3s var(--anim-ease-spring);
}

.lightbox.is-open .lightbox-inner {
  transform: scale(1);
}

.lightbox-inner .gallery-card {
  width: min(640px, 80vw);
  cursor: default;
  box-shadow: none;
}

.lightbox-inner .gallery-image {
  min-height: min(52vh, 420px);
  transform: none !important;
}

.lightbox-inner .gallery-overlay {
  display: none;
}

.lightbox-inner .life-card > p {
  font-size: 16px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    scroll-behavior: auto !important;
    transition: none !important;
  }

  .anim-fade-up,
  .anim-slide-left,
  .anim-slide-right,
  .anim-pop,
  .tongzhu-card,
  .system-card,
  .system-card .pill,
  .gallery-card .gallery-image,
  .gallery-card .gallery-overlay,
  .gallery-card .gallery-overlay p,
  .lightbox-inner {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .system-card-bar {
    width: 100% !important;
    transition: none !important;
  }

  .tongzhu-card.is-visible,
  .system-card.is-visible,
  .system-card.is-visible .pill {
    animation: none !important;
  }

  .anim-counter {
    transition: none !important;
  }

  .section-title-reveal::after {
    width: 60px !important;
    transition: none !important;
  }

  .stagger-children > * {
    transition-delay: 0ms !important;
  }

  .lightbox {
    transition: none !important;
  }
}

/* 全屏板块容器 */
.snap-section {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 0;
  position: relative;
}

/* 页面整体开启滚动吸附 */
.snap-container {
  scroll-snap-type: y mandatory;
  overflow-y: scroll;
  height: 100vh;
}

/* 每个 section 吸附点 */
.snap-section {
  scroll-snap-align: start;
  scroll-snap-stop: always;
}

.page-xiaotun .site-header,
.page-ruhe .site-header {
  position: fixed;
  top: 0;
  left: 0;
}

/* 右侧滚动进度指示器（北大风格小点） */
.scroll-indicator {
  position: fixed;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 100;
}

.scroll-indicator__dot {
  display: block;
  width: 8px;
  height: 8px;
  padding: 0;
  border: 2px solid transparent;
  border-radius: 50%;
  appearance: none;
  background: var(--color-border);
  transition: all 0.3s var(--anim-ease-smooth);
  cursor: pointer;
}

.scroll-indicator__dot.active {
  background: var(--color-primary);
  transform: scale(1.4);
}

/* 小屯页激活点用橙色 */
.page-xiaotun .scroll-indicator__dot.active {
  background: var(--color-xiaotun);
}

/* 汝河页激活点用青蓝色 */
.page-ruhe .scroll-indicator__dot.active {
  background: var(--color-ruhe);
}

@media (min-width: 768px) {
  .page-xiaotun .floating-actions,
  .page-ruhe .floating-actions {
    top: 68%;
  }
}

@media (max-width: 767px) {
  .hero-deco {
    top: 72px;
    bottom: 72px;
    left: 22px;
  }

  .xiaotun-hero,
  .ruhe-hero {
    width: 100%;
    overflow: hidden;
  }

  .xiaotun-hero-inner,
  .ruhe-hero-inner {
    width: 100vw;
    max-width: 100vw;
    padding-right: 20px;
  }

  .xiaotun-hero h1,
  .ruhe-hero h1 {
    max-width: calc(100vw - 72px);
    font-size: 32px;
    word-break: break-all;
    overflow-wrap: anywhere;
  }

  .xiaotun-hero p,
  .ruhe-hero p {
    max-width: calc(100vw - 72px);
    word-break: break-all;
    overflow-wrap: anywhere;
  }

  .xiaotun-badges,
  .ruhe-badges {
    width: calc(100vw - 72px);
    max-width: calc(100vw - 72px);
  }

  .section-heading {
    max-width: calc(100vw - 40px);
  }

  .section-heading h2,
  .section-heading p {
    word-break: break-all;
    overflow-wrap: anywhere;
  }

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

  .snap-section {
    min-height: auto;
    scroll-snap-align: none;
    scroll-snap-stop: normal;
  }

  .scroll-indicator {
    display: none;
  }
}

@media (max-width: 480px) {
  body.xiaotun-page .xiaotun-inner,
  body.ruhe-page .ruhe-inner,
  body.xiaotun-page .bottom-conversion-inner {
    width: 100%;
    max-width: 335px;
  }

  body.xiaotun-page .advantage-grid,
  body.xiaotun-page .systems-grid,
  body.xiaotun-page .four-same-grid,
  body.xiaotun-page .team-grid,
  body.xiaotun-page .life-grid,
  body.ruhe-page .reason-grid,
  body.ruhe-page .feature-grid,
  body.ruhe-page .four-same-grid,
  body.ruhe-page .team-grid,
  body.ruhe-page .life-grid {
    grid-template-columns: 1fr;
  }

  .xiaotun-hero h1,
  .ruhe-hero h1 {
    max-width: 300px;
    font-size: 30px;
  }

  .xiaotun-hero p,
  .ruhe-hero p,
  .xiaotun-badges,
  .ruhe-badges {
    width: 300px;
    max-width: 300px;
  }

  .section-heading {
    max-width: 335px;
  }

  .xiaotun-badges,
  .ruhe-badges {
    gap: 10px;
  }

  .xiaotun-badge,
  .ruhe-badge {
    min-height: 40px;
    padding: 0 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .snap-container {
    scroll-snap-type: none;
  }

  .snap-section {
    scroll-snap-align: none;
    scroll-snap-stop: normal;
  }

  .scroll-indicator__dot {
    transition: none !important;
  }
}

/* 首页英雄轮播增强 */
.hero-carousel {
  isolation: isolate;
}

.hero-slide {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0;
  transition: opacity 0.6s ease-in-out;
}

.hero-slide.active {
  z-index: 1;
  opacity: 1;
}

.hero-slide-text {
  animation: heroSlideFadeUp 0.6s var(--anim-ease-out) both;
}

.hero-slide-text.reset {
  animation: none;
}

.hero-content h1.hero-slide-text {
  animation-delay: 0.2s;
}

.hero-content p.hero-slide-text {
  animation-delay: 0.4s;
}

.hero-content .hero-button.hero-slide-text {
  animation-delay: 0.6s;
}

.hero-progress-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  z-index: 10;
  width: 100%;
  height: 2px;
  background: rgba(255, 255, 255, 0.25);
}

.hero-progress-fill {
  width: 0;
  height: 100%;
  background: white;
}

.hero-progress-fill.is-animating {
  animation: progressGrow 5s linear forwards;
}

@keyframes progressGrow {
  from {
    width: 0;
  }

  to {
    width: 100%;
  }
}

@keyframes heroSlideFadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-arrow {
  background: rgba(255, 255, 255, 0.6);
  transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.hero-arrow:hover {
  background: rgba(255, 255, 255, 1);
}

.hero-arrow svg {
  transition: transform 0.2s ease;
}

.hero-arrow-prev:hover svg {
  transform: translateX(-4px);
}

.hero-arrow-next:hover svg {
  transform: translateX(4px);
}

@media (prefers-reduced-motion: reduce) {
  .hero-slide {
    transition: none !important;
  }

  .hero-progress-fill,
  .hero-progress-fill.is-animating,
  .hero-slide-text {
    animation: none !important;
  }
}

/* 首页英雄轮播：最终交互规格覆盖 */
.hero-slide {
  position: absolute;
  opacity: 0;
  transition: opacity 0.6s ease-in-out;
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide-text {
  animation: heroFadeUp 0.6s var(--anim-ease-out) both;
}

.hero-slide-text.reset {
  animation: none;
}

.hero-content h1.hero-slide-text {
  animation-delay: 0.2s;
}

.hero-content p.hero-slide-text {
  animation-delay: 0.4s;
}

.hero-content .hero-button.hero-slide-text {
  animation-delay: 0.6s;
}

.hero-progress-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  z-index: 10;
  width: 100%;
  height: 2px;
  background: rgba(255, 255, 255, 0.3);
}

.hero-progress-fill {
  width: 0;
  height: 100%;
  background: white;
  animation: none;
}

.hero-progress-fill.is-animating {
  animation: progressGrow 5s linear forwards;
}

@keyframes progressGrow {
  from {
    width: 0;
  }

  to {
    width: 100%;
  }
}

.hero-arrow {
  background: rgba(255, 255, 255, 0.6);
  transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.hero-arrow:hover {
  background: rgba(255, 255, 255, 1);
}

.hero-arrow svg {
  transition: transform 0.2s ease;
}

.hero-arrow-prev:hover svg {
  transform: translateX(-4px);
}

.hero-arrow-next:hover svg {
  transform: translateX(4px);
}

@media (prefers-reduced-motion: reduce) {
  .hero-slide {
    transition: none !important;
  }

  .hero-progress-fill,
  .hero-progress-fill.is-animating,
  .hero-slide-text {
    animation: none !important;
  }
}

/* 首页轮播底部咨询表单动效 */
.hero-form:not(.hero-consult-form) {
  position: absolute;
  top: auto;
  bottom: 28px;
  right: 0;
  left: 0;
  z-index: 9;
  display: none;
  width: min(1040px, calc(100% - 64px));
  margin: 0 auto;
  padding: 20px 24px 18px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 10px;
  box-shadow: 0 18px 44px rgba(15, 23, 42, 0.24);
  transform: translateY(0);
}

.hero-form:not(.hero-consult-form).is-open {
  display: block;
  animation: heroFormFadeUp 0.7s var(--anim-ease-out) both;
}

.hero-form:not(.hero-consult-form) .consult-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.hero-form:not(.hero-consult-form) h2 {
  margin-bottom: 14px;
  font-size: 20px;
}

.hero-form:not(.hero-consult-form) .form-field {
  position: relative;
  display: block;
  padding-top: 12px;
}

.hero-form:not(.hero-consult-form) .form-label {
  position: absolute;
  top: 25px;
  left: 14px;
  z-index: 1;
  color: var(--color-text-muted);
  font-size: 14px;
  line-height: 1;
  pointer-events: none;
  transform-origin: left top;
  transition: transform 0.2s ease, color 0.2s ease;
}

.hero-form:not(.hero-consult-form) .hero-form-grid input,
.hero-form:not(.hero-consult-form) .hero-form-grid select {
  background: var(--color-bg);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.hero-form:not(.hero-consult-form) .hero-form-grid input {
  padding-top: 12px;
}

.hero-form:not(.hero-consult-form) .hero-form-grid input::placeholder {
  color: transparent;
}

.hero-form:not(.hero-consult-form) .hero-form-grid input:focus,
.hero-form:not(.hero-consult-form) .hero-form-grid select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.15);
}

.hero-form:not(.hero-consult-form) .form-field:focus-within .form-label,
.hero-form:not(.hero-consult-form) .hero-form-grid input:not(:placeholder-shown) + .form-label {
  color: var(--color-primary);
  transform: translateY(-18px) scale(0.82);
}

.hero-form:not(.hero-consult-form) .form-error {
  display: block;
  min-height: 16px;
  margin-top: 4px;
}

.hero-form-submit {
  transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.hero-form:not(.hero-consult-form) .hero-form-submit:hover:not(:disabled):not(.is-success) {
  background: #17358F;
  transform: translateY(-2px);
}

@keyframes spinner {
  to { transform: rotate(360deg); }
}

@keyframes heroFormFadeUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.btn-loading::after {
  content: '';
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: white;
  border-radius: 50%;
  animation: spinner 0.7s linear infinite;
  margin-left: 8px;
  vertical-align: middle;
}

.hero-form-submit.is-success,
.hero-form-submit.is-success:hover {
  color: #14532D;
  background: #4ADE80;
  transform: none;
}

.hero-form-submit.is-success.btn-loading::after {
  content: none;
}

@media (max-width: 900px) {
  .hero-form:not(.hero-consult-form) {
    bottom: 58px;
    width: min(620px, calc(100% - 32px));
    padding: 18px 18px 16px;
  }
}

@media (max-width: 640px) {
  .hero-form:not(.hero-consult-form) {
    bottom: 76px;
    max-height: none;
    overflow: visible;
  }

  .hero-form:not(.hero-consult-form) h2 {
    font-size: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-form:not(.hero-consult-form),
  .btn-loading::after {
    animation: none !important;
  }
}

/* 首页 8 大优势卡片滚动弹出与 hover 强化 */
#whyChoose .advantage-card.anim-pop {
  position: relative;
  opacity: 0;
  transform: translateY(30px) scale(0.92);
  transition:
    opacity 0.65s var(--anim-ease-spring),
    transform 0.65s var(--anim-ease-spring),
    box-shadow 0.3s var(--anim-ease-smooth),
    border-color 0.2s ease;
  will-change: opacity, transform;
}

#whyChoose .advantage-card.anim-pop.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

#whyChoose .advantage-card {
  position: relative;
  transition: transform 0.3s var(--anim-ease-spring),
              box-shadow 0.3s var(--anim-ease-smooth);
}

#whyChoose .advantage-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  bottom: auto;
  width: 3px;
  height: 0;
  background: var(--color-primary);
  border-radius: 0 2px 2px 0;
  opacity: 1;
  transform: translateY(-50%);
  transition: height 0.3s var(--anim-ease-out);
}

#whyChoose .advantage-card:hover,
#whyChoose .advantage-card.anim-pop.is-visible:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 16px 48px rgba(30,64,175,0.15);
}

#whyChoose .advantage-card:hover::before {
  height: 40%;
}

#whyChoose .card-icon {
  transition:
    transform 0.3s var(--anim-ease-spring),
    background-color 0.3s var(--anim-ease-smooth);
}

#whyChoose .advantage-card:hover .card-icon {
  transform: rotate(10deg) scale(1.1);
  background: #BFDBFE;
  transition: transform 0.3s var(--anim-ease-spring);
}

@media (prefers-reduced-motion: reduce) {
  #whyChoose .advantage-card.anim-pop {
    opacity: 1;
    transform: none;
    transition: none !important;
  }
}

/* 首页双校区入口滑入与 hover 光效 */
#campusChoice .campus-entry.campus-block.anim-slide-left,
#campusChoice .campus-entry.campus-block.anim-slide-right {
  opacity: 0;
  transition:
    opacity 0.8s var(--anim-ease-out),
    transform 0.8s var(--anim-ease-out),
    box-shadow 0.2s ease;
}

#campusChoice .campus-entry.campus-block.anim-slide-left {
  transform: translateX(-60px);
  transition-delay: 0ms;
}

#campusChoice .campus-entry.campus-block.anim-slide-right {
  transform: translateX(60px);
  transition-delay: 150ms;
}

#campusChoice .campus-entry.campus-block.anim-slide-left.is-visible,
#campusChoice .campus-entry.campus-block.anim-slide-right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

#campusChoice .campus-entry.campus-block.anim-slide-left.is-visible:hover,
#campusChoice .campus-entry.campus-block.anim-slide-right.is-visible:hover {
  transform: translateY(-4px);
  transition:
    transform 0.3s var(--anim-ease-spring),
    box-shadow 0.2s ease;
}

.campus-btn {
  transition: transform 0.25s var(--anim-ease-out),
              background 0.2s ease,
              box-shadow 0.2s ease;
}

#campusChoice .campus-entry .campus-btn:hover {
  transform: translateX(4px);
  box-shadow: 4px 4px 20px rgba(0, 0, 0, 0.15);
}

.campus-entry-xiaotun .campus-btn:hover {
  background: #EA580C;
}

.campus-entry-ruhe .campus-btn:hover {
  background: #0284C7;
}

.campus-block {
  position: relative;
  overflow: hidden;
  transition: transform 0.3s var(--anim-ease-spring);
}

.campus-block::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle 200px at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(255, 255, 255, 0.12),
    transparent
  );
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s;
}

.campus-block:hover::after {
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  #campusChoice .campus-entry.campus-block.anim-slide-left,
  #campusChoice .campus-entry.campus-block.anim-slide-right,
  #campusChoice .campus-entry.campus-block.anim-slide-left.is-visible:hover,
  #campusChoice .campus-entry.campus-block.anim-slide-right.is-visible:hover,
  .campus-btn,
  .campus-btn:hover,
  .campus-block {
    opacity: 1;
    transform: none !important;
    transition: none !important;
  }
}

.phone-typewriter {
  display: inline-block;
  min-width: 12ch;
}

/* 首页最终覆盖：压住旧卡片动效与旧组件样式 */
.page-home .snap-container {
  height: auto !important;
  overflow: visible !important;
  scroll-snap-type: none !important;
}

.page-home .snap-section {
  min-height: auto;
  scroll-snap-align: none !important;
  scroll-snap-stop: normal !important;
}

.page-home .hero-carousel.snap-section,
.page-home .hero-slide {
  min-height: 600px;
  height: 100vh;
}

.page-home .hero-arrow,
.page-home .hero-arrow:hover {
  background: transparent !important;
  border-radius: 0 !important;
  transform: none !important;
}

.page-home .hero-arrow svg {
  display: none !important;
}

.page-home .hero-arrow-prev:hover svg,
.page-home .hero-arrow-next:hover svg {
  transform: none !important;
}

.page-home .hero-form {
  position: fixed !important;
  top: auto !important;
  right: 0 !important;
  bottom: 0 !important;
  left: 0 !important;
  z-index: 3000 !important;
  width: 100% !important;
  border: 0 !important;
  border-radius: 0 !important;
  animation: none !important;
}

.page-home .floating-actions {
  top: auto !important;
  right: 22px !important;
  bottom: 156px !important;
  transform: none !important;
}

.page-home .hero-form.is-open {
  display: flex !important;
}

.page-home .hero-form .hero-form-grid input,
.page-home .hero-form .hero-form-grid select,
.page-home .hero-form-submit,
.page-home .floating-action,
.page-home .nav-cta,
.page-home .campus-btn,
.page-home .gift-button,
.page-home .visit-phone,
.page-home .xt-footer-qr-box {
  border-radius: 0 !important;
}

.page-home .anim-fade-up,
.page-home .anim-slide-left,
.page-home .anim-slide-right,
.page-home .anim-pop,
.page-home .tongzhu-card,
.page-home #whyChoose .advantage-card.anim-pop,
.page-home #campusChoice .campus-entry.campus-block.anim-slide-left,
.page-home #campusChoice .campus-entry.campus-block.anim-slide-right {
  opacity: 0;
  transform: translateY(20px) !important;
  transition:
    opacity 0.6s ease-out,
    transform 0.6s ease-out !important;
}

.page-home .anim-fade-up.is-visible,
.page-home .anim-slide-left.is-visible,
.page-home .anim-slide-right.is-visible,
.page-home .anim-pop.is-visible,
.page-home .tongzhu-card.is-visible,
.page-home #whyChoose .advantage-card.anim-pop.is-visible,
.page-home #campusChoice .campus-entry.campus-block.anim-slide-left.is-visible,
.page-home #campusChoice .campus-entry.campus-block.anim-slide-right.is-visible {
  opacity: 1;
  transform: translateY(0) !important;
}

.page-home #whyChoose .advantage-card:hover,
.page-home #whyChoose .advantage-card.anim-pop.is-visible:hover,
.page-home #campusChoice .campus-entry.campus-block.anim-slide-left.is-visible:hover,
.page-home #campusChoice .campus-entry.campus-block.anim-slide-right.is-visible:hover,
.page-home #campusChoice .campus-entry .campus-btn:hover,
.page-home .campus-btn:hover,
.page-home .gift-button:hover,
.page-home .visit-phone:hover,
.page-home .floating-action:hover {
  transform: none !important;
}

.page-home .campus-block::after {
  content: none !important;
}

.page-home .scroll-indicator {
  display: none !important;
}

@media (max-width: 767px) {
  .page-home .nav-menu-toggle {
    position: absolute !important;
    top: 50% !important;
    right: 16px !important;
    z-index: 1601 !important;
    display: inline-flex !important;
    visibility: visible !important;
    opacity: 1 !important;
    width: 42px !important;
    height: 42px !important;
    color: #FFFFFF !important;
    font-size: 0 !important;
    background: transparent !important;
    border: 1px solid rgba(255, 255, 255, 0.42) !important;
    border-radius: 0 !important;
    transform: translateY(-50%) !important;
  }

  .page-home .nav-menu-toggle::before {
    display: none !important;
    content: none !important;
  }

  .page-home .nav-toggle-lines {
    display: block !important;
    width: 18px !important;
    height: 12px !important;
    border-top: 2px solid #FFFFFF !important;
    border-bottom: 2px solid #FFFFFF !important;
    background: linear-gradient(#FFFFFF, #FFFFFF) center / 100% 2px no-repeat !important;
  }

  .page-home .nav-menu-toggle[aria-expanded="true"] .nav-toggle-lines {
    height: 18px !important;
    border-color: transparent !important;
    background: transparent !important;
  }

  .page-home .nav-menu-toggle[aria-expanded="true"] .nav-toggle-lines::before,
  .page-home .nav-menu-toggle[aria-expanded="true"] .nav-toggle-lines::after {
    background: #FFFFFF !important;
  }

  .page-home .top-nav {
    padding: 0 72px 0 16px !important;
  }

  .page-home .top-nav.is-menu-open .nav-menu {
    display: block !important;
  }

  .page-home .hero-form {
    bottom: 0 !important;
  }

  .page-home .hero-form.is-open {
    display: block !important;
  }
}

@media (max-width: 767px) {
  body.page-home {
    padding-bottom: calc(64px + env(safe-area-inset-bottom)) !important;
  }

  .page-home .floating-actions {
    position: fixed !important;
    top: auto !important;
    right: 0 !important;
    bottom: 0 !important;
    left: 0 !important;
    z-index: 3200 !important;
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    width: 100% !important;
    gap: 6px !important;
    padding: 8px 8px calc(8px + env(safe-area-inset-bottom)) !important;
    background: rgba(13, 43, 94, 0.96) !important;
    border-top: 1px solid rgba(184, 134, 11, 0.42) !important;
    box-shadow: none !important;
    transform: none !important;
  }

  .page-home .floating-action,
  .page-home .floating-action:hover {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 100% !important;
    min-width: 0 !important;
    min-height: 48px !important;
    padding: 0 8px !important;
    overflow: visible !important;
    color: #FFFFFF !important;
    font-size: 13px !important;
    font-weight: 700 !important;
    letter-spacing: 0.02em !important;
    border: 1px solid rgba(255, 255, 255, 0.28) !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    transform: none !important;
  }

  .page-home .floating-action-service,
  .page-home .floating-action-service:hover {
    background: #0D2B5E !important;
  }

  .page-home .floating-action-gift,
  .page-home .floating-action-gift:hover {
    background: #B8860B !important;
    border-color: #B8860B !important;
  }

  .page-home .floating-action::before {
    display: none !important;
  }

  .page-home .floating-action::after {
    flex: 0 0 auto !important;
    width: auto !important;
    height: auto !important;
    margin-right: 4px !important;
    font-size: 16px !important;
    line-height: 1 !important;
  }

  .page-home .floating-action span,
  .page-home .floating-action:hover span {
    max-width: none !important;
    overflow: visible !important;
    opacity: 1 !important;
    white-space: nowrap !important;
  }

  .page-home .hero-form {
    position: fixed !important;
    top: auto !important;
    right: 0 !important;
    bottom: calc(64px + env(safe-area-inset-bottom)) !important;
    left: 0 !important;
    z-index: 3190 !important;
    display: none !important;
    width: 100% !important;
    height: auto !important;
    max-height: calc(100vh - 128px) !important;
    margin: 0 !important;
    padding: 16px 16px 14px !important;
    overflow-y: auto !important;
    background: rgba(13, 43, 94, 0.98) !important;
    border: 0 !important;
    border-top: 2px solid #B8860B !important;
    border-radius: 0 !important;
    box-shadow: none !important;
  }

  .page-home .hero-form.is-open {
    display: block !important;
  }

  .page-home .hero-form h2 {
    margin: 0 34px 12px 0 !important;
    color: #FFFFFF !important;
    font-size: 16px !important;
    line-height: 1.35 !important;
  }

  .page-home .hero-form form,
  .page-home .hero-form .hero-form-grid {
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 10px !important;
  }

  .page-home .hero-form .form-field {
    padding: 0 !important;
  }

  .page-home .hero-form .form-label {
    display: none !important;
  }

  .page-home .hero-form .hero-form-grid input,
  .page-home .hero-form .hero-form-grid select {
    width: 100% !important;
    height: 42px !important;
    padding: 0 12px !important;
    color: #222222 !important;
    font-size: 14px !important;
    background: #FFFFFF !important;
    border: 1px solid rgba(255, 255, 255, 0.7) !important;
    border-radius: 0 !important;
    box-shadow: none !important;
  }

  .page-home .hero-form .hero-form-grid input::placeholder {
    color: #777777 !important;
    opacity: 1 !important;
  }

  .page-home .hero-form-submit {
    width: 100% !important;
    height: 42px !important;
    margin: 2px 0 0 !important;
    color: #FFFFFF !important;
    background: #B8860B !important;
    border: 1px solid #B8860B !important;
    border-radius: 0 !important;
    box-shadow: none !important;
  }

  .page-home .consult-close {
    position: absolute !important;
    top: 10px !important;
    right: 10px !important;
    width: 32px !important;
    height: 32px !important;
    color: rgba(255, 255, 255, 0.82) !important;
  }

  .page-home .wechat-chat {
    right: 10px !important;
    bottom: calc(72px + env(safe-area-inset-bottom)) !important;
    z-index: 3195 !important;
    width: calc(100% - 20px) !important;
    border-radius: 0 !important;
    box-shadow: none !important;
  }
}

/* 快速滚动时简化复杂动画 */
.fast-scrolling .anim-explode-scatter,
.fast-scrolling .anim-radar-scan,
.fast-scrolling .anim-flip-in,
.fast-scrolling .anim-ripple-wave {
  animation: simpleFadeUp 0.3s ease-out both !important;
}

@keyframes simpleFadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 移动端兜底：PC 的分屏吸附和复杂入场动画会在窄屏产生大面积空白。 */
@media (max-width: 767px) {
  .snap-container {
    height: auto !important;
    overflow: visible !important;
    scroll-snap-type: none !important;
  }

  .snap-section {
    min-height: 0 !important;
    scroll-snap-align: none !important;
    scroll-snap-stop: normal !important;
  }

  .snap-section:not(.hero-carousel):not(.xiaotun-hero):not(.ruhe-hero):not(.campus-hero) {
    height: auto !important;
  }

  .anim-fade-up,
  .anim-slide-left,
  .anim-slide-right,
  .anim-pop,
  .anim-flip-in,
  .anim-ripple-wave,
  .anim-explode-scatter,
  .anim-tile-flip,
  .anim-explode-in,
  .anim-radar-scan,
  .tongzhu-card,
  .system-card,
  .advantage-card,
  .section-title-reveal,
  .stagger-children > * {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
    transition: none !important;
    animation: none !important;
  }

  .scroll-indicator {
    display: none !important;
  }
}