/* ============================================================
       完全隔离，只作用于 #longwill-product
       主色：黄 #ffdf00 · 文字深色 #222
       全部使用 rem 单位 + 全局字体变量
       ============================================================ */
#longwill-product {
  font-family: var(--font-regular, 'HarmonyOS_SansSC_Regular', 'Inter', system-ui, sans-serif);
  line-height: 1.6;
  color: #222;
  background-color: #ffffff;
  padding-top: 0 !important;
}

#longwill-product * {
  box-sizing: border-box;
}

#longwill-product img {
  max-width: 100%;
  display: block;
  height: auto;
  border-radius: 0.06rem;
}

#longwill-product a {
  text-decoration: none;
  color: inherit;
  transition: 0.2s ease;
}

#longwill-product ul,
#longwill-product ol {
  list-style: none;
  padding: 0;
  margin: 0;
}

/* ----- 主题变量：黄 + 深灰 (#222) ----- */
#longwill-product {
  --brand-yellow: #ffdf00;
  --brand-dark: #222;
  --brand-accent: #ffdf00;
  --light-bg: #f8f9fa;
  --border-light: #e5e7eb;
  --text-muted: #666;
  --card-shadow: 0 0.08rem 0.24rem rgba(0, 0, 0, 0.04);
  --max-width: 1400px;
}

#longwill-product .container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 0.24rem;
}

/* ============================================================
   1. HERO - 整张 Banner 大图（不裁剪，顶到顶部）
   ============================================================ */
#longwill-product .hero-section {
  padding: 0 !important;
  margin: 0 !important;
  background: none !important;
  border-bottom: none !important;
}

#longwill-product .hero-banner {
  position: relative;
  width: 100%;
  aspect-ratio: 8 / 3;
  min-height: auto;
  height: auto;
  overflow: hidden;
  background: transparent;
  display: block;
}

#longwill-product .hero-bg-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center center;
  display: block;
  background: transparent;
}

#longwill-product .hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  width: 100%;
  padding: 0;
  background: none;
  display: flex;
  align-items: center;
}

#longwill-product .hero-overlay .hero-title,
#longwill-product .hero-overlay .hero-subtitle,
#longwill-product .hero-overlay .hero-subtitle-top,
#longwill-product .hero-overlay .hero-feature-item .text-box h4,
#longwill-product .hero-overlay .hero-feature-item .text-box p {
  color: #fff;
}

#longwill-product .hero-overlay .hero-feature-item .icon-box {
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
  background: rgba(255, 255, 255, 0.10);
}

#longwill-product .hero-overlay .hero-title span {
  color: #ffdf00;
}

#longwill-product .hero-overlay .cta-btn {
  background: #ffdf00;
  color: #222;
  box-shadow: 0 0.04rem 0.16rem rgba(0, 0, 0, 0.20);
}

#longwill-product .hero-overlay .cta-btn:hover {
  background: #e6c800;
  color: #222;
  transform: translateY(-0.02rem);
}

#longwill-product .hero-layout {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0.8rem;
  height: 100%;
}

#longwill-product .hero-content {
  flex: 0 0 60%;
  padding: 0.72rem 0 0 0;
}

#longwill-product .hero-title {
  font-size: var(--font-size-42);
  font-weight: 700;
  color: var(--brand-dark);
  line-height: 1.2;
  margin-bottom: 0.08rem;
  letter-spacing: -0.02em;
}

#longwill-product .hero-title span {
  color: var(--brand-yellow);
}

/* ===== 副标题（红框那个）- 黄色醒目 ===== */
#longwill-product .hero-subtitle-top {
  font-size: var(--font-size-20);
  font-weight: 600;
  color: #ffdf00;
  margin-bottom: 0.18rem;
  letter-spacing: 0.02em;
  font-family: var(--font-medium);
}

/* ===== 长描述正文 ===== */
#longwill-product .hero-subtitle {
  font-size: var(--font-size-16);
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
  margin-bottom: 0.3rem;
  max-width: 95%;
}

#longwill-product .hero-features {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 0.4rem;
  margin-bottom: 0.36rem;
}

#longwill-product .hero-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.14rem;
}

#longwill-product .hero-feature-item .icon-box {
  width: 0.44rem;
  height: 0.44rem;
  border-radius: 50%;
  border: 0.02rem solid var(--brand-yellow);
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 0.2rem;
  color: var(--brand-dark);
  flex-shrink: 0;
  background: rgba(255, 223, 0, 0.08);
}

#longwill-product .hero-feature-item .text-box h4 {
  font-size: var(--font-size-16);
  font-weight: 700;
  color: var(--brand-dark);
  margin-bottom: 0.02rem;
}

#longwill-product .hero-feature-item .text-box p {
  font-size: var(--font-size-14);
  color: var(--text-muted);
}

#longwill-product .cta-btn {
  display: inline-block;
  background: var(--brand-dark);
  color: #fff;
  padding: 0.14rem 0.42rem;
  border-radius: 0.4rem;
  font-weight: 600;
  font-size: var(--font-size-16);
  box-shadow: 0 0.04rem 0.12rem rgba(0, 0, 0, 0.06);
}

#longwill-product .cta-btn:hover {
  background: #000;
  transform: translateY(-0.02rem);
}

#longwill-product .cta-btn span {
  margin-left: 0.08rem;
  font-weight: 300;
}

#longwill-product .hero-images {
  flex: 0 0 44%;
  display: flex;
  justify-content: flex-end;
}

#longwill-product .hero-images img {
  max-width: 100%;
  border-radius: 0.16rem;
  box-shadow: 0 0.12rem 0.32rem rgba(0, 0, 0, 0.04);
}

#longwill-product .hero-buttons {
  display: flex;
  gap: 0.16rem;
  margin-top: 0.18rem;
  flex-wrap: wrap;
}

/* hero CTA buttons share the same style as the "Contact us" com-btn */
#longwill-product .hero-overlay .hero-buttons .cta-btn {
  background: var(--theme-color);
  color: #222;
  border: 0;
  border-radius: max(0.3rem, 30px);
  padding: max(0.15rem, 10px) max(0.24rem, 16px);
  font-size: var(--font-size-p);
  line-height: 1;
  font-weight: 600;
  box-shadow: none;
}

#longwill-product .hero-overlay .hero-buttons .cta-btn:hover {
  background: var(--theme-color);
  color: #222;
  transform: translateY(-4px);
}

#longwill-product .primary-btn {
  background: #ffdf00;
  color: #222;
}

#longwill-product .primary-btn:hover {
  background: #e6c800;
}

#longwill-product .secondary-btn {
  background: transparent;
  border: 0.01rem solid rgba(255,255,255,0.6);
  color: #fff;
}

#longwill-product .secondary-btn:hover {
  background: rgba(255,255,255,0.1);
}

/* ============================================================
   2. PRODUCTS
   ============================================================ */
#longwill-product .product-section {
  padding: 0.15rem 0 0.7rem;
  background: #ffffff;
}

#longwill-product .product-section .product-list-nav {
  width: fit-content;
  margin-bottom: 0.12rem;
  padding-left: 0px;
}

#longwill-product .section-header {
  text-align: center;
  margin: 0.6rem 0 0.44rem;
}

#longwill-product .section-header h2 {
  font-size: var(--font-size-36);
  font-weight: 600;
  color: var(--brand-dark);
  display: inline-block;
  line-height: 1.3;
}

#longwill-product .section-header h2 em {
  padding: 0 0.04rem;
  font-style: normal;
  background: linear-gradient(to top, var(--brand-yellow) 40%, transparent 40%);
}

#longwill-product .product-layout {
  display: flex;
  gap: 0.4rem;
  align-items: flex-start;
}

#longwill-product .product-content {
  flex: 1;
  min-width: 0;
}

#longwill-product .product-category-header {
  margin: 0 0 0.28rem;
  text-align: left;
}

#longwill-product .category-description {
  max-width: 8rem;
  margin: 0.12rem 0 0;
  color: var(--text-muted);
  font-size: var(--font-size-p);
  line-height: 1.7;
}

#longwill-product .category-description p + p {
  margin-top: 0.08rem;
}

#longwill-product .sidebar {
  width: 2.8rem;
  flex-shrink: 0;
}

#longwill-product .sidebar-categories {
  background: #ffffff;
  border-radius: 0.12rem;
  box-shadow: var(--card-shadow);
  border: 0.01rem solid var(--border-light);
  overflow: hidden;
  margin-bottom: 0.28rem;
}

#longwill-product .sidebar-categories .cat-header {
  background: #ffdf00;
  color: #222;
  padding: 0.16rem 0.22rem;
  font-weight: 700;
  font-size: var(--font-size-16);
  /* letter-spacing: 0.03rem; */
}

#longwill-product .sidebar-categories ul li {
  padding: 0.14rem 0.22rem;
  border-bottom: 0.01rem solid var(--border-light);
  font-size: var(--font-size-14);
  color: var(--brand-dark);
  cursor: pointer;
  transition: 0.15s;
}

#longwill-product .sidebar-categories ul li a {
  display: block;
}

#longwill-product .sidebar-categories ul li:last-child {
  border-bottom: none;
}

#longwill-product .sidebar-categories ul li:hover {
  background: rgba(255, 223, 0, 0.04);
  color: var(--brand-dark);
}

#longwill-product .sidebar-categories ul li.active {
  background: rgba(255, 223, 0, 0.08);
  color: var(--brand-dark);
  font-weight: 600;
  border-left: none;
}

#longwill-product .sidebar-help {
  background: #ffffff;
  padding: 0.24rem 0.2rem;
  border-radius: 0.12rem;
  border: 0.01rem solid var(--border-light);
  box-shadow: var(--card-shadow);
  display: flex;
  align-items: flex-start;
  gap: 0.16rem;
}

#longwill-product .sidebar-help .phone-icon {
  width: 0.44rem;
  height: 0.44rem;
  border: 0.02rem solid var(--brand-yellow);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--brand-dark);
  font-size: 0.2rem;
  flex-shrink: 0;
}

#longwill-product .sidebar-help h4 {
  font-size: var(--font-size-16);
  font-weight: 700;
  color: var(--brand-dark);
  margin-bottom: 0.04rem;
}

#longwill-product .sidebar-help p {
  font-size: var(--font-size-14);
  color: var(--text-muted);
  margin-bottom: 0.12rem;
}

#longwill-product .sidebar-help .small-btn {
  background: var(--brand-dark);
  color: #fff;
  padding: 0.08rem 0.22rem;
  border-radius: 0.3rem;
  font-size: var(--font-size-14);
  display: inline-block;
  font-weight: 500;
}

#longwill-product .sidebar-help .small-btn:hover {
  background: #000;
}

/* ============================================================
   产品卡片 - 左图右文布局
   ============================================================ */
#longwill-product .product-card .card-image img {
  object-fit: contain;
  width: 100%;
  height: 100%;
}

#longwill-product .product-grid {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.24rem;
}

#longwill-product .product-empty {
  padding: 0.4rem 0;
  color: #999;
  font-size: var(--font-size-p);
  text-align: center;
}

#longwill-product .product-pagination {
  display: flex;
  justify-content: center;
  gap: 0.08rem;
  margin-top: 0.12rem;
}

#longwill-product .product-pagination a {
  display: grid;
  width: 0.38rem;
  height: 0.38rem;
  place-items: center;
  border: 0.01rem solid var(--border-light);
  border-radius: 50%;
  font-size: var(--font-size-14);
}

#longwill-product .product-pagination a:hover,
#longwill-product .product-pagination a.active {
  color: #222;
  background: var(--brand-yellow);
  border-color: var(--brand-yellow);
}

#longwill-product .product-card {
  background: #fff;
  border: 0.01rem solid var(--border-light);
  border-radius: 0.16rem;
  padding: 0.28rem 0.32rem;
  transition: all 0.25s;
  box-shadow: 0 0.02rem 0.08rem rgba(0, 0, 0, 0.02);
  display: flex;
  align-items: stretch;
  gap: 0.32rem;
  text-align: left;
  min-height: 2rem;
}

#longwill-product .product-card:hover {
  transform: translateY(-0.04rem);
  box-shadow: 0 0.16rem 0.4rem rgba(0, 0, 0, 0.04);
  border-color: #ffdf00;
}

#longwill-product .product-card .card-image {
  flex: 0 0 25%;
  width: 25%;
  aspect-ratio: 1 / 1;
  align-self: center;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f8f9fa;
  border-radius: 0.12rem;
  overflow: hidden;
}

#longwill-product .product-card .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0.08rem;
}

#longwill-product .product-card .card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.04rem;
  min-width: 0;
}

#longwill-product .product-card .card-body .product-title {
  font-size: var(--font-size-28);
  font-family: var(--font-bold);
  color: #222;
  margin: 0;
  line-height: 1.3;
}

#longwill-product .product-card .card-body .product-model {
  font-size: var(--font-size-18);
  font-family: var(--font-medium);
  color: #888;
  display: block;
}

#longwill-product .product-card .card-body .product-description {
  font-size: var(--font-size-p);
  color: #666;
  line-height: 1.6;
  margin: 0.04rem 0;
  font-family: var(--font-regular);
}

#longwill-product .product-card .card-body .feature-list {
  list-style: none;
  padding: 0;
  margin: 0.04rem 0;
}

#longwill-product .product-card .card-body .feature-list li {
  font-size: var(--font-size-18);
  color: #666;
  padding: 0.03rem 0 0.03rem 0.22rem;
  position: relative;
  line-height: 1.5;
  font-family: var(--font-regular);
}

#longwill-product .product-card .card-body .feature-list li::before {
  content: '▹';
  color: #ffdf00;
  position: absolute;
  left: 0;
  font-size: var(--font-size-20);
}

#longwill-product .product-card .card-body .view-btn {
  align-self: flex-start;
  border: none;
  color: #222;
  padding: 0.1rem 0.6rem;
  border-radius: 999px;
  font-size: var(--font-size-18);
  font-weight: 400;
  font-family: var(--font-regular);
  display: inline-flex;
  align-items: center;
  background: #ffdb00;
  margin-top: 0.06rem;
  cursor: pointer;
}

/* ============================================================
   3. SPECS TABLE
   ============================================================ */
#longwill-product .specs-section {
  /* padding: 0.5rem 0 0.4rem; */
  padding: 0.5rem 0.4rem;
  padding-bottom: 0.3rem;
  background: var(--light-bg);
}

#longwill-product .specs-table-wrapper {
  overflow-x: auto;
  margin-top: 0.3rem;
  border-radius: 0.14rem;
  box-shadow: var(--card-shadow);
  background: #fff;
}

#longwill-product .specs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-14);
  text-align: center;
  background: #fff;
  min-width: 860px;
}

#longwill-product .specs-table thead tr {
  background: var(--brand-dark);
  color: #fff;
}

#longwill-product .specs-table thead th {
  padding: 0.16rem 0.1rem;
  border: 0.01rem solid rgba(255, 255, 255, 0.22);
  font-weight: 600;
  letter-spacing: 0.04rem;
  white-space: nowrap;
  font-size: var(--font-size-15);
}

#longwill-product .specs-table tbody td {
  padding: 0.14rem 0.08rem;
  border: 0.01rem solid var(--border-light);
  color: var(--brand-dark);
  font-size: var(--font-size-14);
  vertical-align: middle;
}

#longwill-product .specs-table tbody td:first-child {
  font-weight: 700;
  color: var(--brand-dark);
}

/* ============================================================
   4. FEEDBACK & FORM
   ============================================================ */
#longwill-product .feedback-section {
  padding: 0.7rem 0;
  background: #ffffff;
}

#longwill-product .feedback-layout {
  display: flex;
  gap: 0.5rem;
  align-items: stretch;
}

#longwill-product .feedback-bubble {
  flex: 1;
  background: var(--brand-dark);
  color: #fff;
  padding: 0.48rem 0.4rem;
  border-radius: 0.2rem;
  position: relative;
}

#longwill-product .feedback-bubble h4 {
  font-size: var(--font-size-24);
  font-weight: 600;
  margin-bottom: 0.16rem;
}

#longwill-product .feedback-bubble p {
  font-size: var(--font-size-16);
  line-height: 1.6;
  opacity: 0.9;
  margin-bottom: 0.16rem;
}

#longwill-product .feedback-bubble .author {
  font-weight: 600;
  font-style: italic;
  font-size: var(--font-size-16);
}

#longwill-product .feedback-bubble .dots {
  margin-top: 0.12rem;
  font-size: 0.2rem;
  letter-spacing: 0.06rem;
  opacity: 0.4;
}

#longwill-product .feedback-bubble .quote-mark {
  position: absolute;
  bottom: 0.12rem;
  right: 0.28rem;
  font-size: 1.1rem;
  opacity: 0.10;
  font-family: Georgia, serif;
  line-height: 1;
}

#longwill-product .feedback-form {
  flex: 1;
  padding: 0.06rem 0;
}

#longwill-product .feedback-form h4 {
  font-size: var(--font-size-22);
  font-weight: 700;
  color: var(--brand-dark);
  margin-bottom: 0.24rem;
}

#longwill-product .form-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.18rem;
  margin-bottom: 0.18rem;
}

#longwill-product .form-group input,
#longwill-product .form-group textarea {
  flex: 1 1 calc(50% - 0.1rem);
  min-width: 2rem;
  padding: 0.14rem 0.18rem;
  border: 0.01rem solid var(--border-light);
  border-radius: 0.08rem;
  font-size: var(--font-size-15);
  background: #fff;
  transition: 0.2s;
  font-family: inherit;
  color: var(--brand-dark);
}

#longwill-product .form-group input:focus,
#longwill-product .form-group textarea:focus {
  border-color: var(--brand-yellow);
  outline: none;
  box-shadow: 0 0 0 0.03rem rgba(255, 223, 0, 0.15);
}

#longwill-product .form-group textarea {
  flex: 1 1 100%;
  min-height: 1rem;
  resize: vertical;
}

#longwill-product .form-submit-btn {
  background: var(--brand-dark);
  color: #fff;
  border: none;
  padding: 0.14rem 0.48rem;
  border-radius: 0.4rem;
  font-weight: 600;
  font-size: var(--font-size-16);
  cursor: pointer;
  transition: 0.2s;
  font-family: inherit;
}

#longwill-product .form-submit-btn:hover {
  background: #000;
  transform: translateY(-0.02rem);
}

/* ============================================================
   5. SOLUTIONS
   ============================================================ */
#longwill-product .solutions-section {
  background: #fff;
  padding: 0;
}

#longwill-product .solutions-section > .container {
  max-width: none;
  padding: 0;
}

#longwill-product .solutions-shell {
  display: grid;
  grid-template-columns: 34% 66%;
  overflow: hidden;
  background: #fff;
  border-radius: 0;
  box-shadow: none;
}

#longwill-product .solutions-intro {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 0.72rem 0.64rem;
  color: #fff;
  background: #191a1c;
}

#longwill-product .solutions-intro-line {
  width: 1.4rem;
  height: 0.04rem;
  background: var(--brand-yellow);
}

#longwill-product .solutions-intro h2 {
  margin: 0.38rem 0 0.24rem;
  color: #fff !important;
  font-size: 0.64rem;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

#longwill-product .solutions-intro h2 em {
  color: var(--brand-yellow);
  font-style: normal;
}

#longwill-product .solutions-intro-mark {
  width: 0.44rem;
  height: 0.02rem;
  background: var(--brand-yellow);
}

#longwill-product .solutions-intro p {
  max-width: 3.5rem;
  margin-top: 0.24rem;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.22rem;
  line-height: 1.65;
}

#longwill-product .solutions-intro-btn {
  margin-top: 0.3rem;
  background: var(--brand-yellow);
  color: var(--brand-dark);
  border: 0;
  border-radius: 0.06rem;
  box-shadow: none;
  cursor: pointer;
  font-family: inherit;
}

#longwill-product .solutions-intro-btn:hover {
  background: #e6c800;
  color: var(--brand-dark);
}

#longwill-product .solutions-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
}

#longwill-product .solution-item {
  background: #fff;
  min-width: 0;
  min-height: 3.8rem;
  padding: 0.52rem 0.44rem;
  text-align: left;
  display: grid;
  grid-template-columns: 1.12rem minmax(0, 1fr);
  gap: 0.28rem;
  align-items: start;
  border: 0;
  border-radius: 0;
}

#longwill-product .solution-item:nth-child(odd) {
  border-right: 0.01rem solid var(--border-light);
}

#longwill-product .solution-item:nth-child(-n + 2) {
  border-bottom: 0.01rem solid var(--border-light);
}

#longwill-product .solution-item .icon {
  width: 1.12rem;
  height: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

#longwill-product .solution-item .icon img {
  width: 150%;
  height: 150%;
  max-width: none;
  flex-shrink: 0;
  object-fit: contain;
  border-radius: 0;
}

#longwill-product .solution-copy {
  min-width: 0;
}

#longwill-product .solution-title {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.18rem;
}

#longwill-product .solution-number {
  position: relative;
  z-index: 0;
  display: inline-block;
  padding: 0 0.05rem;
  color: var(--brand-dark);
  font-size: var(--font-size-22);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.08em;
  font-variant-numeric: tabular-nums;
  isolation: isolate;
}

#longwill-product .solution-number::before {
  content: "";
  position: absolute;
  z-index: -1;
  right: 0;
  bottom: 0.03rem;
  left: 0;
  height: 0.1rem;
  background: var(--brand-yellow);
  border-radius: 99px;
  transform: skewX(-12deg);
}

#longwill-product .solution-number::after {
  content: "";
  position: absolute;
  top: 50%;
  left: calc(100% + 0.1rem);
  width: 0.28rem;
  height: 0.01rem;
  background: rgba(34, 34, 34, 0.2);
}

#longwill-product .solution-item h4 {
  font-size: var(--font-size-20);
  font-weight: 700;
  color: var(--brand-dark);
  line-height: 1.35;
}

#longwill-product .solution-item p {
  margin-top: 0.28rem;
  font-size: var(--font-size-16);
  color: var(--text-muted);
  line-height: 1.65;
}

/* ============================================================
   6. WHY CHOOSE
   ============================================================ */
#longwill-product .why-choose-section {
  overflow: hidden;
  /* padding: 0.76rem 0 0.84rem; */
  padding-top: 0.7rem;
  padding-bottom: 0.2rem;
  background: #f7f8fa;
}

#longwill-product .why-choose-header {
  width: 100%;
  max-width: none;
  margin: 0 0 0.54rem;
}

#longwill-product .why-choose-header .category-description {
  width: 100%;
  max-width: none;
  margin: 0.14rem auto 0;
}

#longwill-product .why-choose-timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: repeat(2, minmax(1.82rem, auto));
  row-gap: 0.28rem;
  margin: 0 auto;
  --timeline-node-size: 0.12rem;
  --timeline-node-offset: -0.06rem;
}

#longwill-product .why-choose-timeline::before {
  content: "";
  position: absolute;
  z-index: 0;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 0.01rem;
  background: rgba(255, 219, 0, 0.72);
  transform: translateX(-50%);
}

#longwill-product .why-timeline-arrow {
  position: absolute;
  left: 50%;
  z-index: 4;
  width: 0.42rem;
  height: 0.42rem;
  padding: 0.12rem;
  border: 0.04rem solid #f7f8fa;
  border-radius: 50%;
  background: var(--brand-yellow);
  object-fit: contain;
  box-shadow: 0 0.08rem 0.22rem rgba(34, 34, 34, 0.13);
  filter: none;
}

#longwill-product .why-timeline-arrow-top {
  top: -0.2rem;
  transform: translateX(-50%);
}

#longwill-product .why-timeline-arrow-bottom {
  bottom: -0.2rem;
  transform: translateX(-50%) rotate(180deg);
}

#longwill-product .why-benefit {
  position: relative;
  display: flex;
  align-items: center;
  min-width: 0;
}

#longwill-product .why-benefit-left {
  padding: 0.1rem 0.48rem 0.1rem 0.35rem;
}

#longwill-product .why-benefit-right {
  padding: 0.1rem 0.35rem 0.1rem 0.48rem;
}

#longwill-product .why-benefit::after {
  content: "";
  position: absolute;
  top: 50%;
  z-index: 2;
  width: var(--timeline-node-size);
  height: var(--timeline-node-size);
  border: 0;
  border-radius: 50%;
  background: var(--brand-yellow);
  box-shadow: 0 0 0 0.045rem #f7f8fa, 0 0 0 0.055rem rgba(255, 219, 0, 0.8);
  transform: translateY(-50%);
}

#longwill-product .why-benefit-left::after {
  right: var(--timeline-node-offset);
}

#longwill-product .why-benefit-right::after {
  left: var(--timeline-node-offset);
}

#longwill-product .why-benefit-right::after {
  display: none;
}

#longwill-product .why-benefit-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: none;
  height: 100%;
  padding: 0.26rem 0.3rem 0.28rem;
  border: 0.01rem solid rgba(34, 34, 34, 0.08);
  border-top: 0.03rem solid var(--brand-yellow);
  border-radius: 0.12rem;
  background: #fff;
  box-shadow: 0 0.1rem 0.3rem rgba(34, 34, 34, 0.055);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

#longwill-product .why-benefit:hover .why-benefit-content {
  border-color: rgba(255, 219, 0, 0.55);
  border-top-color: var(--brand-yellow);
  box-shadow: 0 0.18rem 0.45rem rgba(34, 34, 34, 0.13);
  transform: translateY(-0.06rem);
}

#longwill-product .why-benefit-left .why-benefit-content {
  margin-left: auto;
}

#longwill-product .why-benefit-heading {
  display: flex;
  align-items: center;
  gap: 0.16rem;
  margin-bottom: 0.16rem;
}

#longwill-product .why-benefit-icon {
  display: flex;
  flex: 0 0 0.56rem;
  align-items: center;
  justify-content: center;
  width: 0.56rem;
  height: 0.56rem;
  overflow: hidden;
  border: 0.01rem solid rgba(255, 219, 0, 0.9);
  border-radius: 50%;
  background: #fff7bd;
  color: var(--brand-dark);
  font-size: 0.24rem;
  line-height: 1;
  box-shadow: 0 0 0 0.06rem rgba(255, 219, 0, 0.1);
  transition: background-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

#longwill-product .why-benefit-icon-img {
  display: block;
  width: 0.42rem;
  height: 0.42rem;
  object-fit: contain;
  border-radius: 0;
  transform: scale(1.08);
  transition: transform 0.25s ease;
}

#longwill-product .why-benefit:hover .why-benefit-icon {
  background: var(--brand-yellow);
  box-shadow: 0 0 0 0.08rem rgba(255, 219, 0, 0.16);
  transform: translateY(-0.02rem);
}

#longwill-product .why-benefit:hover .why-benefit-icon-img {
  transform: scale(1.16);
}

#longwill-product .why-benefit h3 {
  color: var(--brand-dark);
  font-size: var(--font-size-22);
  font-weight: 700;
  line-height: 1.35;
}

#longwill-product .why-benefit p {
  color: var(--text-muted);
  font-size: var(--font-size-16);
  line-height: 1.62;
}

#longwill-product .why-benefit-number {
  position: absolute;
  top: 0.22rem;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 0.42rem;
  height: 0.42rem;
  border: 0.02rem solid var(--brand-yellow);
  border-radius: 50%;
  background: #fff;
  color: var(--brand-dark);
  font-size: var(--font-size-15);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0;
  font-variant-numeric: tabular-nums;
  box-shadow: 0 0.06rem 0.18rem rgba(34, 34, 34, 0.1);
}

#longwill-product .why-benefit-left .why-benefit-number {
  right: -0.21rem;
}

#longwill-product .why-benefit-right .why-benefit-number {
  left: -0.21rem;
}

#longwill-product .why-choose-action {
  margin-top: 0.42rem;
  text-align: center;
}

#longwill-product .why-choose-action .com-btn {
  display: inline-block;
  padding: max(0.15rem, 10px) max(0.24rem, 16px);
  border: 0;
  border-radius: max(0.3rem, 30px);
  background: var(--theme-color);
  color: #222;
  font-size: var(--font-size-p);
  line-height: 1;
  cursor: pointer;
}

/* ============================================================
   7. FAQ
   ============================================================ */
#longwill-product .faq-section {
  padding: 0.7rem 0;
  background: #ffffff;
}

#longwill-product .faq-layout {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
}

#longwill-product .faq-content {
  flex: 1.4;
}

#longwill-product .faq-image-box {
  flex: 1;
  border-radius: 0.16rem;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

#longwill-product .faq-image-box img {
  width: 100%;
  height: auto;
  display: block;
}

#longwill-product .faq-accordion-title {
  font-size: var(--font-size-22);
  font-weight: 700;
  color: var(--brand-dark);
  margin-bottom: 0.18rem;
}

#longwill-product .faq-accordion-list li {
  padding: 0.16rem 0;
  border-bottom: 0.01rem solid var(--border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-16);
  color: var(--brand-dark);
  cursor: pointer;
  transition: 0.15s;
}

#longwill-product .faq-accordion-list li:hover {
  color: var(--brand-yellow);
}

#longwill-product .faq-accordion-list li::after {
  content: '+';
  font-size: 0.22rem;
  font-weight: 300;
  color: var(--text-muted);
}

/* ============================================================
   FOOTER
   ============================================================ */
#longwill-product .site-footer {
  background: var(--brand-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 0.2rem;
  text-align: center;
  font-size: var(--font-size-14);
  border-top: 0.01rem solid rgba(255, 255, 255, 0.05);
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1200px) {
  #longwill-product .product-layout {
    flex-direction: column;
  }
  #longwill-product .sidebar {
    width: 100%;
  }
  #longwill-product .solutions-shell {
    grid-template-columns: 1fr;
  }
  #longwill-product .solutions-intro {
    padding: 0.56rem;
  }
  #longwill-product .solutions-intro h2 {
    margin: 0.24rem 0 0.18rem;
    font-size: 0.44rem;
  }
  #longwill-product .solutions-intro h2 br {
    display: none;
  }
  #longwill-product .solutions-intro p {
    max-width: 7rem;
    margin-top: 0.18rem;
    font-size: var(--font-size-18);
  }
}

@media (max-width: 1100px) {
  #longwill-product .hero-banner {
    aspect-ratio: auto;
    min-height: 4.6rem;
  }
  #longwill-product .hero-overlay {
    padding: 0.9rem 0;
  }
  #longwill-product .hero-overlay .hero-layout {
    flex-direction: column;
    text-align: center;
  }
  #longwill-product .hero-overlay .hero-features {
    justify-content: center;
  }
  #longwill-product .hero-overlay .hero-feature-item {
    justify-content: center;
  }
  #longwill-product .hero-overlay .hero-images {
    display: none;
  }
  #longwill-product .hero-title {
    font-size: var(--font-size-34);
  }
  #longwill-product .hero-layout {
    flex-direction: column-reverse;
    text-align: center;
    gap: 0.3rem;
  }
  #longwill-product .hero-features {
    justify-content: center;
  }
  #longwill-product .hero-feature-item {
    justify-content: center;
  }
  #longwill-product .hero-subtitle {
    max-width: 100%;
  }
  #longwill-product .hero-images {
    justify-content: center;
    max-width: 5rem;
    margin: 0 auto;
  }
  #longwill-product .hero-content {
    flex: 1;
    padding: 0.7rem 0 0;
  }
}

@media (max-width: 900px) {
  #longwill-product .why-choose-section {
    padding: 0.7rem 0;
  }
  #longwill-product .why-choose-timeline {
    display: block;
    padding-left: 0.42rem;
  }
  #longwill-product .why-choose-timeline::before {
    left: 0.12rem;
  }
  #longwill-product .why-benefit,
  #longwill-product .why-benefit-left,
  #longwill-product .why-benefit-right {
    min-height: 0;
    margin-bottom: 0.16rem;
    padding: 0.25rem 0 0.25rem 0.36rem;
  }
  #longwill-product .why-benefit:last-child {
    margin-bottom: 0;
  }
  #longwill-product .why-benefit-left::after,
  #longwill-product .why-benefit-right::after {
    display: block;
    right: auto;
    left: -0.36rem;
  }
  #longwill-product .why-timeline-arrow {
    left: 0.12rem;
  }
  #longwill-product .why-benefit-content {
    max-width: 100%;
  }
  #longwill-product .why-benefit-heading {
    gap: 0.12rem;
  }
  #longwill-product .why-benefit-number,
  #longwill-product .why-benefit-left .why-benefit-number,
  #longwill-product .why-benefit-right .why-benefit-number {
    position: static;
    flex: 0 0 0.38rem;
    width: 0.38rem;
    height: 0.38rem;
    box-shadow: none;
  }
  #longwill-product .faq-layout {
    flex-direction: column;
  }
}

@media (max-width: 880px) {
  #longwill-product .feedback-layout {
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  #longwill-product .product-card {
    flex-direction: column;
    text-align: center;
    padding: 0.24rem 0.2rem;
    gap: 0.16rem;
    min-height: auto;
  }

  #longwill-product .product-card .card-image {
    flex: 0 0 auto;
    width: min(100%, 260px);
    height: auto;
    min-height: 0;
    margin: 0 auto;
  }

  #longwill-product .product-card .card-body .view-btn {
    align-self: center;
  }

  #longwill-product .product-card .card-body .feature-list {
    text-align: center;
  }

  #longwill-product .product-card .card-body .feature-list li {
    padding: 0.03rem 0;
  }

  #longwill-product .product-card .card-body .feature-list li::before {
    display: none;
  }
}

@media (max-width: 720px) {
  #longwill-product .solutions-grid {
    grid-template-columns: 1fr;
  }
  #longwill-product .solution-item {
    min-height: auto;
    padding: 0.4rem 0.3rem;
    border-right: 0 !important;
    border-bottom: 0.01rem solid var(--border-light);
  }
  #longwill-product .solution-item:last-child {
    border-bottom: 0;
  }
}

@media (max-width: 600px) {
  #longwill-product {
    padding-top: 0 !important;
  }
  #longwill-product .hero-banner {
    aspect-ratio: auto;
    min-height: 0;
  }
  #longwill-product .hero-bg-image {
    object-fit: cover;
  }
  #longwill-product .hero-overlay {
    position: relative;
    inset: auto;
    min-height: 370px;
    padding: 70px 0 28px;
    background: rgba(0, 0, 0, 0.35);
    align-items: flex-start;
  }
  #longwill-product .hero-overlay .hero-layout {
    height: auto;
    text-align: left;
  }
  #longwill-product .hero-content {
    padding: 0;
  }
  #longwill-product .hero-overlay .hero-title {
    font-size: 28px;
  }
  #longwill-product .hero-subtitle-top {
    margin-bottom: 16px;
    font-size: 15px;
    line-height: 1.45;
  }
  #longwill-product .hero-subtitle {
    display: none;
  }
  #longwill-product .hero-overlay .hero-features {
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 8px;
    margin-bottom: 18px;
  }
  #longwill-product .hero-overlay .hero-feature-item {
    justify-content: flex-start;
  }
  #longwill-product .hero-feature-item .icon-box {
    width: 32px;
    height: 32px;
    border-width: 1px;
    font-size: 15px;
  }
  #longwill-product .hero-feature-item .text-box h4 {
    font-size: 14px;
  }
  #longwill-product .hero-feature-item .text-box p {
    font-size: 12px;
  }
  #longwill-product .hero-buttons {
    gap: 10px;
    margin-top: 0;
  }
  #longwill-product .cta-btn {
    padding: 10px 18px;
    font-size: 13px;
  }
  #longwill-product .section-header h2 {
    font-size: 24px;
  }
  #longwill-product .sidebar-categories .cat-header,
  #longwill-product .sidebar-categories ul li {
    font-size: 14px;
  }
  #longwill-product .product-card .card-body .product-title {
    font-size: 20px;
  }
  #longwill-product .product-card .card-body .product-model {
    font-size: 14px;
  }
  #longwill-product .product-card .card-body .product-description,
  #longwill-product .product-card .card-body .feature-list li {
    font-size: 13px;
  }
}

@media (max-width: 500px) {
  #longwill-product .solutions-intro {
    padding: 0.44rem 0.26rem;
  }
  #longwill-product .solutions-intro h2 {
    font-size: 0.36rem;
  }
  #longwill-product .solutions-intro h2 br {
    display: block;
  }
  #longwill-product .solutions-intro p {
    font-size: var(--font-size-16);
  }
  #longwill-product .solution-item {
    grid-template-columns: 0.64rem minmax(0, 1fr);
    gap: 0.18rem;
    padding: 0.34rem 0.22rem;
  }
  #longwill-product .solution-item .icon {
    width: 0.64rem;
    height: 0.72rem;
  }
  #longwill-product .solution-copy {
    grid-template-columns: 0.34rem minmax(0, 1fr);
    column-gap: 0.08rem;
  }
  #longwill-product .solution-item h4 {
    font-size: var(--font-size-18);
  }
  #longwill-product .solution-item p {
    margin-top: 0.16rem;
    font-size: var(--font-size-15);
  }
  
}