/* ========== 全局重置与通用 ========== */
* {margin: 0; padding: 0; box-sizing: border-box; font-family: 'Arial', sans-serif;}
body {overflow-x: hidden; color: #121212;}
img {max-width: 100%; height: auto;}
a {text-decoration: none;}
ul {list-style: none;}

/* 通用容器与标题 */
.container {max-width: 1200px; margin: 0 auto; width: 100%;}
.section {width: 100%; padding: 70px 20px; box-sizing: border-box;}
.section-title {font-size: 32px; font-weight: 700; color: #121212; text-align: center; margin-bottom: 15px;}
.section-subtitle {font-size: 16px; color: #666; text-align: center; margin-bottom: 50px;}

/* 按钮通用 */
.btn-primary {
  display: inline-block;
  padding: 14px 35px;
  background: #eb8117;
  color: #fff;
  border-radius: 999px;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 3px 6px rgba(0,0,0,0.2);
  border: none;
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary:hover {
  background: #d47415;
  transform: translateY(-3px);
  box-shadow: 0 6px 12px rgba(0,0,0,0.3);
  color: #fff;
}
.btn-outline-light {
  display: inline-block;
  padding: 14px 35px;
  background: #fff;
  color: #121212;
  border: 1px solid #121212;
  border-radius: 999px;
  font-weight: 600;
  transition: all 0.3s ease;
  white-space: nowrap;
}
.btn-outline-light:hover {
  background: #f5f5f5;
  transform: translateY(-3px);
  box-shadow: 0 3px 6px rgba(0,0,0,0.15);
}
.btn-small {
  display: inline-block;
  padding: 6px 18px;
  background: #eb8117;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  border-radius: 999px;
  transition: all 0.3s ease;
  cursor: pointer;
}
.btn-small:hover {
  background: #d47415;
  transform: translateY(-2px);
  box-shadow: 0 3px 8px rgba(235, 129, 23, 0.3);
  color: #fff;
}

/* ========== Hero首屏 ========== */
.hero-section {
  width: 100%;
  position: relative;
  padding: 80px 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 600px;
  background: url('https://bsg-i.nbxc.com/product/9b/62/aa/75081cae8cffd9d5286fcb38e6.jpg') no-repeat center center;
  background-size: cover;
  box-sizing: border-box;
}
.hero-overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.4);
  z-index: 1;
}
.hero-wrap {
  max-width: 1200px;
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  align-items: center;
  position: relative;
  z-index: 2;
}
.hero-content {flex: 1; min-width: 300px;}
.hero-title {font-size: 42px; font-weight: 700; color: #fff; margin-bottom: 20px; line-height: 1.2;}
.hero-desc {font-size: 18px; color: #fff; line-height: 1.6; margin-bottom: 30px;}
.hero-btns {display: flex; gap: 15px; flex-wrap: wrap;}
.hero-placeholder {flex: 1; min-width: 300px; text-align: center;}
.hero-placeholder img {width: 90%; border-radius: 12px; opacity: 0; pointer-events: none;}

/* ========== 行业痛点板块 ========== */
.pain-points {background: #fff;}
.pain-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 25px;
}
.pain-card {
  background: #f7f2ec;
  padding: 25px 30px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 18px;
  transition: all 0.3s ease;
}
.pain-card:hover {transform: translateY(-5px); box-shadow: 0 8px 20px rgba(0,0,0,0.1);}
.pain-card i {font-size: 28px; color: #eb8117; flex-shrink: 0; transition: all 0.3s ease;}
.pain-card:hover i {transform: scale(1.15);}
.pain-card h3 {font-size: 19px; font-weight: 600; margin: 0 0 5px; color: #121212;}
.pain-card p {color: #666; font-size: 14px; line-height: 1.4; margin: 0;}

/* ========== 防护价值数据 ========== */
.protection-value {background: #121212; padding: 50px 20px;}
.protection-value .section-title {color: #fff; margin-bottom: 30px;}
.value-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.value-item {text-align: center; padding: 15px; transition: all 0.3s ease;}
.value-item h3 {font-size: 48px; font-weight: 700; color: #eb8117; margin-bottom: 10px;}
.value-item p {color: #ccc; font-size: 16px;}

/* ========== 场景+防护优势 ========== */
.scenario-advantages {background: #fff;}
.scenario-grid {
  max-width: 1200px;
  margin: 0 auto 60px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
}
.scenario-card {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 3px 10px rgba(0,0,0,0.05);
  transition: all 0.3s ease;
}
.scenario-card:hover {transform: translateY(-5px); box-shadow: 0 8px 20px rgba(0,0,0,0.1);}
.scenario-card img {width: 100%; height: 200px; object-fit: cover; transition: transform 0.4s ease;}
.scenario-card:hover img {transform: scale(1.05);}
.scenario-card-body {padding: 20px; text-align: center;}
.scenario-card-body h4 {font-weight: 600; margin-bottom: 5px; color: #121212;}

.advantage-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 25px;
}
.advantage-card {
  background: #f7f2ec;
  padding: 25px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: all 0.3s ease;
}
.advantage-card:hover {transform: translateY(-5px); box-shadow: 0 8px 20px rgba(0,0,0,0.1);}
.advantage-card i {font-size: 28px; color: #eb8117; flex-shrink: 0; transition: all 0.3s ease;}
.advantage-card:hover i {transform: scale(1.15);}
.advantage-card p:first-of-type {font-weight: 600; margin: 0; color: #121212;}
.advantage-card p:last-of-type {font-size: 13px; color: #666; margin: 5px 0 0;}

/* ========== R&D Strength 研发实力 ========== */
.rd-advantage-container {width: 100%; background: #f7f2ec; padding: 60px 20px;}
.rd-title {text-align: center; margin-bottom: 40px; max-width: 1200px; margin-left: auto; margin-right: auto;}
.rd-title h2 {font-size: 32px; color: #121212; font-weight: 700; margin-bottom: 8px;}
.rd-title p {font-size: 16px; color: #666; text-transform: uppercase; letter-spacing: 1px;}
.rd-content-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
  justify-content: center;
}
.rd-img-group {flex: 1; min-width: 300px; display: flex; gap: 15px; justify-content: center;}
.rd-img {
  width: 48%;
  border-radius: 8px;
  object-fit: cover;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.rd-img:hover {transform: translateY(-5px); box-shadow: 0 8px 16px rgba(0,0,0,0.15);}
.rd-text-group {flex: 1; min-width: 300px;}
.rd-core-desc {font-size: 16px; color: #121212; line-height: 1.6; margin-bottom: 25px;}
.rd-advantage-list {list-style: none; margin-bottom: 30px;}
.rd-advantage-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 20px;
  padding: 15px;
  border-radius: 8px;
  transition: all 0.3s ease;
}
.rd-advantage-list li:hover {background: #fff; transform: translateX(5px);}
.list-icon {font-size: 20px; color: #eb8117; margin-top: 3px;}
.list-text h3 {font-size: 18px; color: #121212; font-weight: 600; margin-bottom: 5px;}
.list-text p {font-size: 14px; color: #666; line-height: 1.5;}
.rd-custom-btn {
  display: inline-block;
  padding: 12px 28px;
  background: #eb8117;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  border-radius: 999px;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 3px 6px rgba(235, 129, 23, 0.2);
}
.rd-custom-btn:hover {
  background: #d47415;
  transform: translateY(-2px);
  box-shadow: 0 5px 12px rgba(235, 129, 23, 0.3);
  color: #fff;
}

/* ========== Precision Molds 精密模具 ========== */
.mold-advantage-container {width: 100%; background: #121212; padding: 70px 20px;}
.mold-title {text-align: center; margin-bottom: 50px;}
.mold-title h2 {font-size: 34px; color: #fff; font-weight: 700; margin-bottom: 10px;}
.mold-title p {font-size: 16px; color: #b0b0b0; text-transform: uppercase; letter-spacing: 1px;}
.mold-content-wrapper {
  max-width: 1200px;
  margin: 0 auto 40px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.mold-card {
  background: #1e1e1e;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  overflow: hidden;
  transition: all 0.3s ease;
  cursor: pointer;
}
.mold-card:hover {transform: translateY(-8px); box-shadow: 0 0 25px rgba(255, 255, 255, 0.25);}
.mold-img-box {width: 100%; height: 250px; overflow: hidden;}
.mold-img-box img {width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease;}
.mold-card:hover .mold-img-box img {transform: scale(1.08);}
.mold-card-content {padding: 25px;}
.mold-card-content h3 {font-size: 19px; color: #fff; margin-bottom: 12px; font-weight: 600;}
.mold-card-content p {font-size: 14px; color: #ccc; line-height: 1.6;}
.mold-btn-box {text-align: center;}
.mold-custom-btn {
  display: inline-block;
  padding: 14px 35px;
  background: #eb8117;
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  border-radius: 999px;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 3px 8px rgba(235, 129, 23, 0.2);
}
.mold-custom-btn:hover {
  background: #d47415;
  transform: translateY(-3px);
  box-shadow: 0 6px 15px rgba(235, 129, 23, 0.3);
}

/* ========== Quality Control 质检 ========== */
.qc-container {width: 100%; background: #f7f2ec; padding: 70px 20px;}
.qc-title-wrap {text-align: center; max-width: 1000px; margin: 0 auto 50px;}
.qc-main-title {font-size: 36px; color: #121212; font-weight: 700; margin-bottom: 12px;}
.qc-sub-title {font-size: 17px; color: #555; margin-bottom: 15px; font-style: italic;}
.qc-process-steps {
  max-width: 1200px;
  margin: 0 auto 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}
.process-step {
  padding: 10px 20px;
  background: #fff;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 600;
  color: #eb8117;
  white-space: nowrap;
}
.process-line {width: 30px; height: 2px; background: #ccc;}
.qc-cards-wrapper {
  max-width: 1400px;
  margin: 0 auto 50px;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}
.qc-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 3px 10px rgba(0,0,0,0.05);
  transition: all 0.3s ease;
}
.qc-card:hover {transform: translateY(-6px); box-shadow: 0 8px 20px rgba(0,0,0,0.1);}
.qc-card-img {width: 100%; height: 200px;}
.qc-card-img img {width: 100%; height: 100%; object-fit: cover;}
.qc-card-content {padding: 20px 15px;}
.qc-card-content h3 {font-size: 16px; color: #121212; font-weight: 600; margin-bottom: 10px; line-height: 1.4;}
.qc-card-content p {font-size: 13px; color: #666; line-height: 1.5;}
.qc-highlight-bar {
  max-width: 1000px;
  margin: 0 auto 40px;
  padding: 18px;
  background: #fff;
  border-left: 4px solid #eb8117;
  text-align: center;
  border-radius: 8px;
}
.qc-highlight-bar p {font-size: 18px; color: #121212; font-weight: 600;}
.qc-btn-wrap {text-align: center;}
.qc-custom-btn {
  display: inline-block;
  padding: 15px 40px;
  background: #eb8117;
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  border-radius: 999px;
  text-decoration: none;
  transition: all 0.3s ease;
}
.qc-custom-btn:hover {background: #d47415; transform: translateY(-3px);}

/* ========== 产品系列 ========== */
.product-series {background: #fff;}
.product-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}
.product-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: #f7f2ec;
  padding: 20px;
  border-radius: 12px;
  transition: all 0.3s ease;
  text-decoration: none;
}
.product-card:hover {transform: translateY(-5px); box-shadow: 0 8px 20px rgba(0,0,0,0.1);}
.product-card img {width: 160px; height: 160px; object-fit: cover; border-radius: 8px; flex-shrink: 0;}
.product-card-body h4 {font-size: 18px; font-weight: 600; color: #121212; margin: 0 0 8px;}
.product-card-body p {font-size: 14px; color: #666; margin: 0 0 12px; line-height: 1.4;}

/* ========== 底部CTA ========== */
.cta-section {width: 100%; background: #121212; padding: 80px 20px; text-align: center; box-sizing: border-box;}
.cta-title {font-size: 36px; font-weight: 700; color: #fff; margin-bottom: 20px;}
.cta-desc {font-size: 18px; color: #ccc; margin-bottom: 40px;}

/* ========== 响应式适配 ========== */
@media (max-width: 1200px) {
  .qc-cards-wrapper {grid-template-columns: repeat(3, 1fr);}
}
@media (max-width: 992px) {
  .scenario-grid {grid-template-columns: repeat(2, 1fr);}
  .advantage-grid {grid-template-columns: repeat(2, 1fr);}
  .mold-content-wrapper {grid-template-columns: repeat(2, 1fr);}
}
@media (max-width: 768px) {
  .hero-section {min-height: 500px; padding: 60px 20px;}
  .hero-title {font-size: 28px;}
  .hero-desc {font-size: 16px;}
  .section-title {font-size: 26px;}
  .cta-title {font-size: 28px;}
  .pain-grid {grid-template-columns: 1fr;}
  .value-grid {grid-template-columns: 1fr;}
  .scenario-grid {grid-template-columns: 1fr;}
  .advantage-grid {grid-template-columns: 1fr;}
  .product-grid {grid-template-columns: 1fr;}
  .product-card {flex-direction: column; text-align: center; gap: 15px;}
  .section {padding: 50px 20px;}
  .cta-section {padding: 60px 20px;}
  .mold-content-wrapper {grid-template-columns: 1fr;}
  .mold-title h2 {font-size: 28px;}
  .qc-cards-wrapper {grid-template-columns: repeat(2, 1fr);}
  .process-line {display: none;}
  .qc-main-title {font-size: 28px;}
  .rd-content-wrapper {flex-direction: column;}
  .rd-title h2 {font-size: 26px;}
}
@media (max-width: 480px) {
  .hero-title {font-size: 24px;}
  .section-title {font-size: 24px;}
  .cta-title {font-size: 24px;}
  .qc-cards-wrapper {grid-template-columns: 1fr;}
}