/* ========================================================================
   一鸠官网 · 全局样式 style.css
   版本: v1.0 | 日期: 2026-07-05
   布局参考: Glamnetic
   ======================================================================== */

/* ---------- 1. 字体引入 ---------- */
@import url('https://fonts.googleapis.com/css2?family=Jost:wght@400;500;700&family=Noto+Sans+SC:wght@400;500;700&display=swap');

/* ---------- 2. 设计 Token（CSS 变量） ---------- */
:root {
  /* 色彩 */
  --color-primary: #121212;
  --color-pink: #b6637b;
  --color-pink-dark: #9a4f64;
  --color-beige: #FBF6F3;
  --color-grey: #2D2D2C;
  --color-grey-light: #D9D9D9;
  --color-cta: #b6637b;
  --color-white: #ffffff;
  --color-bg-soft: #f4f4f4;

  /* 字体 */
  --font-sans: "Jost", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-bold: 700;

  /* 间距 */
  --container-max: 1400px;
  --container-pad: 24px;
  --section-gap: 64px;
  --section-gap-mobile: 40px;

  /* 圆角与边框 */
  --radius-card: 8px;
  --radius-btn: 0;
  --border-color: #D9D9D9;

  /* 导航尺寸 */
  --nav-height: 64px;
  --announce-height: 36px;
  --sidebar-width-collapsed: 56px;
  --sidebar-width-expanded: 320px;

  /* 过渡 */
  --t-fast: 0.2s ease;
  --t-normal: 0.3s ease;
  --t-slow: 0.5s ease;
}

/* ---------- 3. 重置样式 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  font-weight: var(--fw-regular);
  color: var(--color-primary);
  background-color: var(--color-white);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
}

img,
picture,
svg,
video {
  display: block;
  max-width: 100%;
  height: auto;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul,
ol {
  list-style: none;
}

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

/* ---------- 4. 工具类 ---------- */

/* 微信号悬停/点击弹出的二维码 */
.wx-qrcode {
  position: relative;
  display: inline-block;
  cursor: pointer;
  border-bottom: 1px dashed currentColor;
}
.wx-qrcode__popup {
  position: absolute;
  left: 50%;
  bottom: 100%;
  transform: translateX(-50%) scale(0.95);
  transform-origin: center bottom;
  width: 160px;
  padding: 12px;
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  z-index: 9999;
}
.wx-qrcode:hover .wx-qrcode__popup,
.wx-qrcode.is-open .wx-qrcode__popup {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) scale(1);
}
.wx-qrcode__popup img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
}
.wx-qrcode__label {
  margin-top: 8px;
  font-size: 0.75rem;
  text-align: center;
  color: var(--color-grey);
  line-height: 1.4;
}
/* 移动端触控提示 */
.wx-qrcode__hint {
  display: none;
  font-size: 0.7rem;
  color: var(--color-pink);
  margin-left: 4px;
}
@media (max-width: 767px) {
  .wx-qrcode__hint {
    display: inline;
  }
  .wx-qrcode__popup {
    width: 140px;
    padding: 10px;
  }
}

/* 容器 */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* 全局图片防下载 */
img {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-user-drag: none;
  -webkit-touch-callout: none;
  pointer-events: auto;
}

/* 区块间距 */
.section {
  padding-block: var(--section-gap);
}
.section--tight {
  padding-block: var(--section-gap-mobile);
}
.section--beige {
  background-color: var(--color-beige);
}

/* 标题 */
.h1, .h2, .h3, .h4 {
  font-weight: var(--fw-medium);
  line-height: 1.25;
  color: var(--color-primary);
}
.h1 { font-size: clamp(2rem, 4vw, 3rem); }
.h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
.h3 { font-size: clamp(1.25rem, 2.2vw, 1.5rem); }
.h4 { font-size: clamp(1rem, 1.8vw, 1.125rem); }

.text-pink { color: var(--color-pink); }
.text-center { text-align: center; }
.text-grey { color: var(--color-grey); }

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 0.875rem;
  font-weight: var(--fw-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-btn);
  transition: all var(--t-fast);
  white-space: nowrap;
  min-height: 44px;
}
.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  border: 1px solid var(--color-primary);
}
.btn--primary:hover {
  background-color: var(--color-grey);
  border-color: var(--color-grey);
}
.btn--cta {
  background-color: var(--color-cta);
  color: var(--color-white);
  border: 1px solid var(--color-cta);
}
.btn--cta:hover {
  background-color: var(--color-pink-dark);
  border-color: var(--color-pink-dark);
}
.btn--outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}
.btn--outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* 网格 */
.grid {
  display: grid;
  gap: 24px;
}
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* 可访问性: 屏幕阅读器专用 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 5. 公告条 ---------- */
.announce {
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 0.8125rem;
  text-align: center;
  padding: 10px 16px;
  letter-spacing: 0.04em;
}

/* ---------- 6. 顶部导航 ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--border-color);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
  gap: 24px;
}
.logo {
  font-size: 1.5rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.05em;
  color: var(--color-primary);
  white-space: nowrap;
}
.logo span {
  color: var(--color-pink);
}
.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav__link {
  font-size: 0.9375rem;
  font-weight: var(--fw-medium);
  padding: 8px 0;
  position: relative;
  transition: color var(--t-fast);
}
.nav__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-pink);
  transition: width var(--t-fast);
}
.nav__link:hover::after,
.nav__link.is-active::after {
  width: 100%;
}
.nav__link.is-active {
  color: var(--color-pink);
}
.header__actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--color-primary);
  transition: color var(--t-fast);
}
.icon-btn:hover {
  color: var(--color-pink);
}
/* 汉堡菜单按钮（移动端） */
.menu-toggle {
  display: none;
}

/* ---------- 7. 侧边栏 ---------- */
.sidebar {
  position: fixed;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  width: var(--sidebar-width-collapsed);
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-right: none;
  border-radius: var(--radius-card) 0 0 var(--radius-card);
  z-index: 90;
  overflow: hidden;
  transition: width var(--t-normal);
  box-shadow: -2px 0 12px rgba(0, 0, 0, 0.05);
}
.sidebar.is-expanded {
  width: var(--sidebar-width-expanded);
}
.sidebar__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 48px;
  border-bottom: 1px solid var(--border-color);
  color: var(--color-primary);
  transition: background-color var(--t-fast);
}
.sidebar__toggle:hover {
  background-color: var(--color-beige);
}
.sidebar__content {
  padding: 16px;
  opacity: 0;
  transition: opacity var(--t-normal);
}
.sidebar.is-expanded .sidebar__content {
  opacity: 1;
  transition-delay: 0.1s;
}
.sidebar__section {
  margin-bottom: 20px;
}
.sidebar__title {
  font-size: 0.75rem;
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-grey);
  margin-bottom: 10px;
}
.sidebar__menu-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 8px;
  font-size: 0.9375rem;
  border-radius: 4px;
  transition: background-color var(--t-fast);
}
.sidebar__menu-link:hover {
  background-color: var(--color-beige);
  color: var(--color-pink);
}
.sidebar__contact p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-grey);
}
.sidebar__contact strong {
  color: var(--color-primary);
  font-weight: var(--fw-medium);
}
.sidebar__cta {
  margin-top: 12px;
  width: 100%;
}
/* 侧边栏遮罩（展开时遮挡内容） */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.3);
  z-index: 80;
}
.sidebar-overlay.is-visible {
  display: block;
}

/* ---------- 8. 页脚 ---------- */
.footer {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding-top: 56px;
}
.footer__lead {
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  margin-bottom: 40px;
}
.footer__lead-title {
  font-size: 1.75rem;
  font-weight: var(--fw-medium);
  margin-bottom: 12px;
}
.footer__lead-sub {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 24px;
  max-width: 560px;
}
.footer__blessing {
  max-width: 600px;
  padding: 20px 24px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-card);
}
.footer__blessing p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 4px;
}
.footer__blessing p:last-child {
  margin-bottom: 0;
}
.footer__cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-bottom: 40px;
}
.footer__col-title {
  font-size: 0.8125rem;
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-pink);
  margin-bottom: 16px;
}
.footer__col ul li {
  margin-bottom: 10px;
}
.footer__col a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.875rem;
  transition: color var(--t-fast);
}
.footer__col a:hover {
  color: var(--color-white);
}
.footer__col p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.875rem;
  line-height: 1.7;
}
.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.6);
}
.footer__bottom a {
  color: rgba(255, 255, 255, 0.6);
}
.footer__bottom a:hover {
  color: var(--color-white);
}

/* ---------- 9. 移动端抽屉菜单 ---------- */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 200;
  visibility: hidden;
  opacity: 0;
  transition: opacity var(--t-normal), visibility var(--t-normal);
}
.drawer.is-open {
  visibility: visible;
  opacity: 1;
}
.drawer__backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
}
.drawer__panel {
  position: absolute;
  top: 0;
  left: 0;
  width: min(320px, 85vw);
  height: 100%;
  background-color: var(--color-white);
  padding: 24px;
  transform: translateX(-100%);
  transition: transform var(--t-normal);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.drawer.is-open .drawer__panel {
  transform: translateX(0);
}
.drawer__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}
.drawer__close {
  font-size: 1.5rem;
  color: var(--color-primary);
}
.drawer__nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.drawer__nav-link {
  padding: 14px 12px;
  font-size: 1rem;
  font-weight: var(--fw-medium);
  border-radius: 4px;
  transition: background-color var(--t-fast);
}
.drawer__nav-link:hover,
.drawer__nav-link.is-active {
  background-color: var(--color-beige);
  color: var(--color-pink);
}
.drawer__contact {
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}
.drawer__contact p {
  font-size: 0.875rem;
  color: var(--color-grey);
  line-height: 1.8;
}

/* ---------- 10. 响应式断点 ---------- */

/* 平板 (768-1023px) */
@media (max-width: 1023px) {
  :root {
    --section-gap: 48px;
  }
  .grid--4 {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer__cols {
    grid-template-columns: repeat(2, 1fr);
  }
  /* 平板隐藏侧边栏 */
  .sidebar {
    display: none;
  }
}

/* 移动端 (<768px) */
@media (max-width: 767px) {
  :root {
    --container-pad: 16px;
    --section-gap: 40px;
    --nav-height: 56px;
  }
  /* 隐藏桌面导航，显示汉堡菜单 */
  .nav {
    display: none;
  }
  .header__actions .btn {
    display: none;
  }
  .menu-toggle {
    display: inline-flex;
  }
  .logo {
    font-size: 1.25rem;
  }
  /* 网格全部单列 */
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
  .footer__cols {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer__bottom {
    flex-direction: column;
    text-align: center;
    padding: 20px 0;
    gap: 8px;
  }
  .footer__bottom span {
    max-width: 100%;
  }
  /* 移动端隐藏侧边栏 */
  .sidebar {
    display: none;
  }
}

/* ---------- 11.5 首页: 宣传视频 ---------- */
.promo-video {
  background: #f8f5f3;
}
.promo-video__wrapper {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0,0,0,0.1);
  background: #000;
}
.promo-video__player {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #000;
}
.promo-video__player::-webkit-media-controls-download-button {
  display: none;
}
.promo-video__fullscreen {
  position: absolute;
  right: 12px;
  bottom: 56px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.5);
  border: none;
  border-radius: 8px;
  color: #fff;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 2;
}
.promo-video__wrapper:hover .promo-video__fullscreen {
  opacity: 1;
}
.promo-video__fullscreen:active {
  background: rgba(0,0,0,0.7);
}

/* 移动端适配 */
@media (max-width: 767px) {
  .promo-video__wrapper {
    border-radius: 8px;
  }
  .promo-video__fullscreen {
    opacity: 1;
    bottom: 48px;
    width: 36px;
    height: 36px;
  }
}

/* ---------- 12. 首页: Hero 轮播 ---------- */
.hero {
  position: relative;
  width: 100%;
  overflow: hidden;
}
.hero__slider {
  position: relative;
  width: 100%;
  padding-top: 36%;
}
.hero__slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--t-slow), visibility var(--t-slow);
}
.hero__slide.is-active {
  opacity: 1;
  visibility: visible;
}
.hero__slide-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero__content {
  max-width: 520px;
  color: var(--color-white);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}
.hero__content--left { margin-right: auto; }
.hero__content--right { margin-left: auto; text-align: right; }
.hero__content--center { margin: 0 auto; text-align: center; }
.hero__eyebrow {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: var(--fw-medium);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 6px 14px;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  margin-bottom: 16px;
  backdrop-filter: blur(4px);
}
.hero__title {
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: var(--fw-medium);
  line-height: 1.2;
  margin-bottom: 16px;
}
.hero__sub {
  font-size: clamp(0.875rem, 1.5vw, 1rem);
  line-height: 1.7;
  margin-bottom: 28px;
  opacity: 0.95;
}
.hero__cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.hero__content--right .hero__cta { justify-content: flex-end; }
.hero__content--center .hero__cta { justify-content: center; }
.hero__cta .btn {
  text-shadow: none;
  backdrop-filter: none;
}
.hero__cta .btn--outline {
  color: var(--color-white);
  border-color: var(--color-white);
}
.hero__cta .btn--outline:hover {
  background-color: var(--color-white);
  color: var(--color-primary);
}
.hero__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  background-color: rgba(0, 0, 0, 0.3);
  border-radius: 50%;
  transition: background-color var(--t-fast);
  z-index: 2;
}
.hero__arrow:hover { background-color: rgba(0, 0, 0, 0.5); }
.hero__arrow--prev { left: 24px; }
.hero__arrow--next { right: 24px; }
.hero__dots {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 2;
}
.hero__dot {
  width: 28px;
  height: 3px;
  background-color: rgba(255, 255, 255, 0.4);
  border-radius: 2px;
  cursor: pointer;
  transition: background-color var(--t-fast);
}
.hero__dot.is-active {
  background-color: var(--color-white);
}

/* ---------- 13. 首页: 版块标题通用 ---------- */
.section-head {
  text-align: center;
  margin-bottom: 48px;
}
.section-title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: var(--fw-medium);
  margin-bottom: 10px;
}
.section-sub {
  font-size: 1rem;
  color: var(--color-grey);
}

/* ---------- 14. 首页: 三页入口卡片 ---------- */
.entry-grid {
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.entry-card {
  display: block;
  border-radius: var(--radius-card);
  overflow: hidden;
  background-color: var(--color-white);
  transition: transform var(--t-normal), box-shadow var(--t-normal);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}
.entry-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.1);
}
.entry-card__img {
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background-color: var(--color-beige);
}
.entry-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}
.entry-card:hover .entry-card__img img {
  transform: scale(1.05);
}
.entry-card__body {
  padding: 24px;
}
.entry-card__title {
  font-size: 1.25rem;
  font-weight: var(--fw-medium);
  margin-bottom: 6px;
}
.entry-card__desc {
  font-size: 0.875rem;
  color: var(--color-grey);
  margin-bottom: 12px;
}
.entry-card__link {
  font-size: 0.875rem;
  font-weight: var(--fw-medium);
  color: var(--color-pink);
  transition: gap var(--t-fast);
}
.entry-card:hover .entry-card__link {
  color: var(--color-pink-dark);
}

/* ---------- 15. 首页: 畅销品卡片 ---------- */
.bestseller-grid {
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.bestseller-card {
  background-color: var(--color-white);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform var(--t-normal);
}
.bestseller-card:hover {
  transform: translateY(-2px);
}
.bestseller-card__img {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background-color: var(--color-bg-soft);
}
.bestseller-card__img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity var(--t-normal), transform var(--t-normal);
}
.bestseller-card__back {
  opacity: 0;
}
.bestseller-card:hover .bestseller-card__front {
  opacity: 0;
}
.bestseller-card:hover .bestseller-card__back {
  opacity: 1;
  transform: scale(1.06);
}
.bestseller-card__badge {
  position: absolute;
  top: 12px;
  left: 12px;
  font-size: 0.6875rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.05em;
  padding: 5px 10px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: 2px;
  z-index: 2;
}
.bestseller-card__badge--pink {
  background-color: var(--color-pink);
}
.bestseller-card__body {
  padding: 16px 12px 20px;
  text-align: center;
}
.bestseller-card__name {
  font-size: 1rem;
  font-weight: var(--fw-medium);
  margin-bottom: 4px;
}
.bestseller-card__tag {
  font-size: 0.8125rem;
  color: var(--color-grey);
}

/* ---------- 16. 首页: 招商优势 ---------- */
.advantage-grid {
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.advantage-card {
  text-align: center;
  padding: 32px 20px;
  border-radius: var(--radius-card);
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  transition: all var(--t-fast);
}
.advantage-card:hover {
  border-color: var(--color-pink);
  box-shadow: 0 8px 20px rgba(182, 99, 123, 0.08);
}
.advantage-card__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: var(--color-beige);
  color: var(--color-pink);
}
.advantage-card__title {
  font-size: 1.125rem;
  font-weight: var(--fw-medium);
  margin-bottom: 8px;
}
.advantage-card__desc {
  font-size: 0.875rem;
  color: var(--color-grey);
  line-height: 1.7;
}

/* ---------- 17. 首页: Find Us ---------- */
.findus {
  position: relative;
  overflow: hidden;
  padding: 0;
  color: var(--color-primary);
}
.findus__bg {
  position: relative;
  width: 100%;
  z-index: 0;
}
.findus__bg img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}
.findus .container {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}
.findus__content {
  max-width: 520px;
  text-align: right;
  padding-right: 60px;
}
.findus__content--right {
  margin-left: auto;
}
.findus__eyebrow {
  display: block;
  font-size: 0.875rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.2em;
  margin-bottom: 16px;
  color: var(--color-pink);
}
.findus__title {
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: var(--fw-medium);
  line-height: 1.15;
  margin-bottom: 20px;
}
.findus__desc {
  font-size: 1.125rem;
  line-height: 1.7;
  opacity: 0.85;
  margin-bottom: 32px;
}
.findus__content .btn {
  margin-left: auto;
}

/* ---------- 18. 首页响应式 ---------- */
@media (max-width: 1023px) {
  .bestseller-grid,
  .advantage-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero__slider { padding-top: 48%; }
  .findus__content { padding-right: 40px; }
}
@media (max-width: 767px) {
  .entry-grid { grid-template-columns: 1fr; }
  .bestseller-grid,
  .advantage-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .section-head { margin-bottom: 32px; }
  .hero__slider { padding-top: 0; }
  .hero__slide { position: relative; opacity: 1; visibility: visible; display: none; }
  .hero__slide.is-active { display: block; }
  .hero__slide-img { width: 100%; height: auto; object-fit: contain; }
  .hero__arrow { display: none; }
  .hero__dots { bottom: 12px; }
  .hero__content { max-width: 100%; padding: 0 8px; }
  .hero__content--right { text-align: center; margin: 0 auto; }
  .hero__content--right .hero__cta { justify-content: center; }
  .hero__sub br { display: none; }
  .findus .container {
    position: relative;
    justify-content: center;
    padding: 48px 0;
    background-color: rgba(255, 255, 255, 0.6);
  }
  .findus__content { max-width: 100%; text-align: center; padding-right: 0; }
  .findus__content--right { margin-left: 0; }
  .findus__content .btn { margin-left: auto; margin-right: auto; }
  .findus__desc br { display: none; }
  .advantage-card { padding: 24px 16px; }
}

/* ---------- 19. 页面通用 Hero ---------- */
.page-hero {
  padding: 120px 0 60px;
  background-color: var(--color-beige);
  text-align: center;
}
.page-hero__title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: var(--fw-medium);
  margin-bottom: 8px;
  color: var(--color-primary);
}
.page-hero__sub {
  font-size: clamp(0.9375rem, 1.5vw, 1.0625rem);
  color: var(--color-grey);
}
@media (max-width: 767px) {
  .page-hero {
    padding: 96px 0 40px;
  }
}

/* ---------- 20. 商品展示页: 筛选栏 ---------- */
.products-filter {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: var(--nav-height);
  z-index: 50;
}
.filter-bar {
  display: flex;
  gap: 8px;
  padding: 16px 0;
  overflow-x: auto;
  scrollbar-width: thin;
}
.filter-bar::-webkit-scrollbar {
  height: 4px;
}
.filter-bar::-webkit-scrollbar-thumb {
  background-color: var(--color-grey-light);
  border-radius: 2px;
}
.filter-btn {
  flex-shrink: 0;
  padding: 8px 20px;
  font-size: 0.875rem;
  font-weight: var(--fw-medium);
  border: 1px solid var(--border-color);
  background-color: var(--color-white);
  color: var(--color-primary);
  border-radius: 20px;
  transition: all var(--t-fast);
  white-space: nowrap;
}
.filter-btn:hover {
  border-color: var(--color-pink);
  color: var(--color-pink);
}
.filter-btn.is-active {
  background-color: var(--color-pink);
  border-color: var(--color-pink);
  color: var(--color-white);
}

/* ---------- 21. 商品展示页: 产品网格 ---------- */
.products-grid-section {
  padding-top: 40px;
}
.products-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}
.product-card {
  position: relative;
  border-radius: var(--radius-card);
  overflow: visible;
  z-index: 1;
  transition: z-index 0s 0.25s;
}
.product-card.is-hidden {
  display: none;
}
.product-card:hover {
  z-index: 9999;
  transition: z-index 0s 0s;
}
.product-card__visual {
  position: relative;
  border-radius: var(--radius-card);
  background-color: var(--color-white);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.product-card:hover .product-card__visual {
  transform: scale(2.22);
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.25);
}
.product-card__img {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: var(--radius-card) var(--radius-card) 0 0;
  background-color: var(--color-bg-soft);
}
.product-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-card__body {
  padding: 12px 12px 16px;
  text-align: center;
  background-color: var(--color-white);
  border-radius: 0 0 var(--radius-card) var(--radius-card);
}
.product-card__name {
  font-size: 0.9375rem;
  font-weight: var(--fw-medium);
  margin-bottom: 0;
}
.product-card__tag {
  font-size: 0.75rem;
  color: var(--color-grey);
}

.products-empty {
  text-align: center;
  padding: 60px 0;
  color: var(--color-grey);
  font-size: 1rem;
}

/* ---------- 22. 商品展示页: 底部 CTA ---------- */
.products-cta {
  background-color: var(--color-beige);
  padding: 60px 0;
}
.products-cta__inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}
.products-cta__inner h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: var(--fw-medium);
  margin-bottom: 12px;
}
.products-cta__inner p {
  color: var(--color-grey);
  margin-bottom: 28px;
  font-size: 1rem;
}

/* ---------- 23. 弹窗通用 ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  visibility: hidden;
  opacity: 0;
  transition: opacity var(--t-normal), visibility var(--t-normal);
  padding: 24px;
}
.modal.is-open {
  visibility: visible;
  opacity: 1;
}
.modal__backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
}
.modal__panel {
  position: relative;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  background-color: var(--color-white);
  border-radius: var(--radius-card);
  padding: 32px;
  transform: translateY(20px);
  transition: transform var(--t-normal);
}
.modal.is-open .modal__panel {
  transform: translateY(0);
}
.modal__close {
  position: absolute;
  top: 12px;
  right: 16px;
  font-size: 1.75rem;
  color: var(--color-grey);
  line-height: 1;
  transition: color var(--t-fast);
}
.modal__close:hover {
  color: var(--color-primary);
}
.modal__title {
  font-size: 1.375rem;
  font-weight: var(--fw-medium);
  margin-bottom: 6px;
}
.modal__sub {
  font-size: 0.875rem;
  color: var(--color-grey);
  margin-bottom: 24px;
}
.modal__success {
  text-align: center;
  padding: 24px 0;
  color: var(--color-primary);
}
.modal__success h3 {
  font-size: 1.25rem;
  font-weight: var(--fw-medium);
  margin-bottom: 8px;
}
.modal__success p {
  font-size: 0.9375rem;
  color: var(--color-grey);
}

/* 表单 */
.form-group {
  margin-bottom: 16px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: var(--fw-medium);
  margin-bottom: 6px;
  color: var(--color-primary);
}
.form-optional {
  font-weight: var(--fw-regular);
  color: var(--color-grey);
  font-size: 0.75rem;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 0.875rem;
  background-color: var(--color-white);
  transition: border-color var(--t-fast);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-pink);
}
.form-group input[readonly] {
  background-color: var(--color-bg-soft);
  color: var(--color-grey);
  cursor: not-allowed;
}
.form-group textarea {
  resize: vertical;
  min-height: 72px;
}

/* ---------- 24. 商品页响应式 ---------- */
@media (max-width: 1023px) {
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 767px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .products-filter {
    top: 56px;
  }
  .filter-bar {
    padding: 12px 0;
    gap: 6px;
  }
  .filter-btn {
    padding: 6px 14px;
    font-size: 0.8125rem;
  }
  .products-grid-section {
    padding-top: 24px;
  }
  .product-card {
    overflow: hidden;
  }
  .product-card__visual {
    border-radius: var(--radius-card);
  }
  .product-card:hover .product-card__visual {
    transform: none;
    box-shadow: none;
  }
  .product-card:hover {
    z-index: 1;
  }
  .product-card__body {
    padding: 10px 8px 14px;
  }
  .product-card__name {
    font-size: 0.8125rem;
  }
  .products-cta {
    padding: 40px 0;
  }
  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
}

@media (hover: none) {
  .product-card:hover .product-card__visual {
    transform: none;
    box-shadow: none;
  }
  .product-card:hover {
    z-index: 1;
  }
}

/* ---------- 26. 甲条参数页: 参数示意图 ---------- */
.specs-images-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  align-items: stretch;
}
.specs-image {
  position: relative;
  margin: 0;
  border-radius: var(--radius-card);
  overflow: hidden;
  background-color: var(--color-white);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  transition: transform var(--t-normal), box-shadow var(--t-normal);
  cursor: zoom-in;
  display: flex;
  flex-direction: column;
  height: 100%;
}
/* 热卖标签 */
.specs-image__tag {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 2;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.05em;
  color: var(--color-white);
  background-color: var(--color-pink);
  border-radius: 3px;
  box-shadow: 0 2px 6px rgba(182, 99, 123, 0.4);
}
.specs-image.is-hot {
  box-shadow: 0 2px 12px rgba(182, 99, 123, 0.25);
}
.specs-image.is-hot:hover {
  box-shadow: 0 12px 28px rgba(182, 99, 123, 0.35);
}
.specs-image:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
}
.specs-image__img {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  background-color: var(--color-bg-soft);
  min-height: 220px;
}
.specs-image img {
  max-width: 100%;
  max-height: 260px;
  width: auto;
  height: auto;
  display: block;
  object-fit: contain;
}
.specs-image figcaption {
  padding: 10px 12px;
  font-size: 0.875rem;
  font-weight: var(--fw-medium);
  text-align: center;
  color: var(--color-primary);
  background-color: var(--color-white);
  word-break: break-all;
}

/* ---------- 26-1. 甲条参数页: 图片放大弹窗 ---------- */
.image-zoom {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  visibility: hidden;
  opacity: 0;
  transition: opacity var(--t-normal), visibility var(--t-normal);
}
.image-zoom.is-open {
  visibility: visible;
  opacity: 1;
}
.image-zoom__backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.85);
  cursor: zoom-out;
}
.image-zoom img {
  position: relative;
  z-index: 1;
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius-card);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}
.image-zoom__close {
  position: absolute;
  top: 20px;
  right: 24px;
  z-index: 2;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--color-white);
  background-color: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  transition: background-color var(--t-fast);
}
.image-zoom__close:hover {
  background-color: rgba(255, 255, 255, 0.3);
}

/* ---------- 28. 甲条参数页: 工艺亮点 ---------- */
.highlights-grid {
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.highlight-card {
  text-align: center;
  padding: 28px 20px;
  border-radius: var(--radius-card);
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  transition: all var(--t-fast);
}
.highlight-card:hover {
  border-color: var(--color-pink);
  box-shadow: 0 8px 20px rgba(182, 99, 123, 0.08);
}
.highlight-card__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: var(--color-beige);
  color: var(--color-pink);
}
.highlight-card h3 {
  font-size: 1.0625rem;
  font-weight: var(--fw-medium);
  margin-bottom: 8px;
}
.highlight-card p {
  font-size: 0.8125rem;
  color: var(--color-grey);
  line-height: 1.7;
}

/* ---------- 29. 甲条参数页: CTA ---------- */
.specs-cta {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 64px 0;
}
.specs-cta__inner {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}
.specs-cta__inner h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: var(--fw-medium);
  margin-bottom: 12px;
}
.specs-cta__inner p {
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 28px;
  font-size: 1rem;
}

/* ---------- 30. 甲条参数页响应式 ---------- */
@media (max-width: 1023px) {
  .specs-images-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .specs-image__img {
    min-height: 200px;
  }
  .specs-image img {
    max-height: 240px;
  }
  .highlights-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 767px) {
  .specs-images-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .specs-image__img {
    min-height: 160px;
    padding: 8px;
  }
  .specs-image img {
    max-height: 180px;
  }
  .specs-image figcaption {
    padding: 8px 6px;
    font-size: 0.75rem;
  }
  .specs-image__tag {
    top: 6px;
    left: 6px;
    padding: 3px 7px;
    font-size: 0.6875rem;
  }
  .highlights-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .specs-cta {
    padding: 48px 0;
  }
  .image-zoom {
    padding: 16px;
  }
  .image-zoom img {
    max-width: 95vw;
    max-height: 80vh;
  }
  .image-zoom__close {
    top: 12px;
    right: 12px;
    width: 40px;
    height: 40px;
    font-size: 1.75rem;
  }
}

/* ---------- 32. 企业介绍页: 主视觉 ---------- */
.about-hero {
  position: relative;
  width: 100%;
  overflow: hidden;
  background-color: var(--color-beige);
}
.about-hero__bg {
  width: 100%;
}
.about-hero__bg img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}

/* ---------- 32-1. 企业介绍页: 主视觉标题区 ---------- */
.about-hero-text {
  padding: 56px 0 0;
  text-align: center;
  background-color: var(--color-white);
}
.about-hero-text__content {
  max-width: 720px;
  margin: 0 auto;
}
.about-hero-text__eyebrow {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.2em;
  padding: 6px 14px;
  background-color: rgba(182, 99, 123, 0.1);
  color: var(--color-pink);
  border-radius: 20px;
  margin-bottom: 16px;
}
.about-hero-text__title {
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: var(--fw-medium);
  line-height: 1.25;
  margin-bottom: 16px;
  color: var(--color-primary);
}
.about-hero-text__sub {
  font-size: clamp(0.9375rem, 1.5vw, 1.0625rem);
  color: var(--color-grey);
  line-height: 1.7;
}

/* ---------- 33. 企业介绍页: 公司信息卡 ---------- */
.info-grid {
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.info-card {
  padding: 32px 24px;
  border-radius: var(--radius-card);
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  text-align: center;
  transition: all var(--t-fast);
}
.info-card:hover {
  border-color: var(--color-pink);
  box-shadow: 0 8px 20px rgba(182, 99, 123, 0.08);
}
.info-card__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: var(--color-beige);
  color: var(--color-pink);
}
.info-card__label {
  font-size: 0.8125rem;
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-grey);
  margin-bottom: 8px;
}
.info-card__value {
  font-size: 0.9375rem;
  font-weight: var(--fw-medium);
  color: var(--color-primary);
  line-height: 1.6;
}

/* ---------- 34. 企业介绍页: 微信咨询区 ---------- */
.about-wechat__inner {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 28px;
  align-items: center;
  justify-items: center;
}
.about-wechat__img {
  border-radius: var(--radius-card);
  overflow: hidden;
  background-color: var(--color-white);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  max-width: 760px;
  width: 100%;
  margin: 0 auto;
  transition: transform var(--t-normal);
}
.about-wechat__img:hover {
  transform: scale(1.015);
}
.about-wechat__img img {
  width: 100%;
  display: block;
}
.about-wechat__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: var(--fw-medium);
  margin-bottom: 12px;
}
.about-wechat__desc {
  font-size: 1rem;
  color: var(--color-grey);
  line-height: 1.7;
  margin-bottom: 24px;
}
.about-wechat__contact {
  display: flex;
  gap: 24px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.about-wechat__contact-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 140px;
  flex: 1;
}
.about-wechat__contact-item--full {
  width: 100%;
  flex: none;
}
.about-wechat__contact-label {
  font-size: 0.8125rem;
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
}
.about-wechat__contact-value {
  font-size: 1.125rem;
  font-weight: var(--fw-medium);
  color: var(--color-primary);
}
.about-wechat__phone {
  color: var(--color-pink);
  text-decoration: none;
}
.about-wechat__wxid {
  font-size: 1.25rem;
  color: var(--color-pink);
  letter-spacing: 0.04em;
}
.about-wechat__action-btn {
  width: 100%;
  margin-top: 4px;
}
.about-wechat__tip {
  margin-top: 12px;
  padding: 12px 16px;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--color-primary);
  background-color: #FFF0F3;
  border-left: 3px solid var(--color-pink);
  border-radius: 4px;
  word-break: break-all;
}

/* ---------- 35. 企业介绍页: 合作流程 ---------- */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
.process-step {
  text-align: center;
  padding: 32px 20px;
  position: relative;
}
.process-step__num {
  font-size: 2.5rem;
  font-weight: var(--fw-bold);
  color: var(--color-pink);
  opacity: 0.25;
  margin-bottom: 12px;
  line-height: 1;
}
.process-step__title {
  font-size: 1.125rem;
  font-weight: var(--fw-medium);
}
.process-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 50%;
  right: -12px;
  width: 24px;
  height: 2px;
  background-color: var(--color-grey-light);
  transform: translateY(-50%);
}

/* ---------- 36. 企业介绍页: 合作意向表单 ---------- */
.about-contact {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 64px 0;
}
.about-contact__inner {
  max-width: 640px;
  margin: 0 auto;
}
.about-contact__head {
  text-align: center;
  margin-bottom: 40px;
}
.about-contact__head .section-title {
  color: var(--color-white);
}
.about-contact__head .section-sub {
  color: rgba(255, 255, 255, 0.7);
}
.about-contact__blessing {
  text-align: center;
  padding: 48px 32px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-card);
}
.about-contact__blessing p {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.8;
  margin-bottom: 8px;
}
.about-contact__blessing p:last-child {
  margin-bottom: 0;
}
.about-contact__blessing a {
  color: var(--color-pink);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---------- 37. 企业介绍页响应式 ---------- */
@media (max-width: 1023px) {
  .info-grid {
    grid-template-columns: 1fr;
  }
  .about-wechat__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
  .process-step:not(:last-child)::after {
    display: none;
  }
}
@media (max-width: 767px) {
  .about-hero-text {
    padding: 40px 0 0;
  }
  .about-hero-text__title {
    font-size: 1.5rem;
  }
  .about-hero-text__sub {
    font-size: 0.9375rem;
  }
  .about-wechat__inner {
    gap: 28px;
  }
  .about-wechat__img {
    max-width: 320px;
  }
  .about-wechat__title {
    font-size: 1.375rem;
  }
  .about-wechat__desc {
    font-size: 0.9375rem;
    margin-bottom: 20px;
  }
  .about-wechat__contact {
    gap: 20px;
    margin-bottom: 24px;
  }
  .about-wechat__contact-item {
    min-width: calc(50% - 10px);
    flex: none;
  }
  .about-wechat__contact-value {
    font-size: 1rem;
  }
  .about-wechat__wxid {
    font-size: 1.125rem;
  }
  .process-steps {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .about-contact {
    padding: 48px 0;
  }
  .about-contact__form {
    padding: 24px 20px;
  }
}

/* ---------- 38. 可访问性: 减少动画 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  transition-duration: 0.01ms !important;
  scroll-behavior: auto !important;
  }
}

/* ---------- 39. 表单校验错误态 ---------- */
.is-invalid,
.is-invalid:focus {
  border-color: #e5484d !important;
  background-color: #fff5f5;
}
.form-group__error {
  display: none;
  color: #e5484d;
  font-size: 0.75rem;
  margin-top: 4px;
}
.form-group.has-error .form-group__error {
  display: block;
}
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-4px); }
  40%, 80% { transform: translateX(4px); }
}
.shake {
  animation: shake 0.4s ease;
}