/* ===== 全局变量与重置 ===== */
:root {
  --charcoal: #1A1815;
  --charcoal-light: #2A2723;
  --cream: #F5F0E8;
  --cream-dark: #EDE6D8;
  --flame: #C85A2A;
  --flame-light: #E07A3F;
  --flame-dark: #A04520;
  --brown: #3D2E1F;
  --warm-gray: #8A8278;
  --warm-gray-light: #B5ADA1;
  --white: #FFFFFF;
  --font-display: 'Noto Serif SC', 'Songti SC', 'SimSun', serif;
  --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--cream);
  color: var(--charcoal);
  line-height: 1.7;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

/* ===== 顶部导航 ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(26, 24, 21, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(200, 90, 42, 0.2);
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--cream);
  letter-spacing: 1px;
}

.nav-logo svg {
  width: 32px;
  height: 32px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-size: 15px;
  font-weight: 400;
  color: var(--warm-gray-light);
  transition: color 0.3s ease;
  position: relative;
  padding: 4px 0;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--flame-light);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--flame), var(--flame-light));
}

.nav-cta {
  background: linear-gradient(135deg, var(--flame), var(--flame-dark));
  color: var(--white) !important;
  padding: 10px 24px !important;
  border-radius: 2px;
  font-weight: 500 !important;
  transition: transform 0.3s ease, box-shadow 0.3s ease !important;
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(200, 90, 42, 0.4);
}

.nav-cta::after {
  display: none !important;
}

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--cream);
  margin: 5px 0;
  transition: 0.3s;
}

/* ===== Hero 区 ===== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 640px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--charcoal);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.55);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,24,21,0.7) 0%, rgba(26,24,21,0.3) 50%, rgba(200,90,42,0.15) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  width: 100%;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--flame-light);
  margin-bottom: 24px;
  font-weight: 500;
}

.hero-eyebrow::before {
  content: '';
  width: 40px;
  height: 1px;
  background: var(--flame);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 900;
  color: var(--cream);
  line-height: 1.15;
  margin-bottom: 24px;
  max-width: 720px;
}

.hero-title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--flame-light), #F0A050);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(16px, 2vw, 20px);
  color: rgba(245, 240, 232, 0.8);
  max-width: 560px;
  margin-bottom: 40px;
  line-height: 1.8;
  font-weight: 300;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 36px;
  font-size: 16px;
  font-weight: 500;
  border-radius: 2px;
  cursor: pointer;
  border: none;
  transition: all 0.3s ease;
  font-family: var(--font-body);
}

.btn-primary {
  background: linear-gradient(135deg, var(--flame), var(--flame-dark));
  color: var(--white);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(200, 90, 42, 0.45);
}

.btn-outline {
  background: transparent;
  color: var(--cream);
  border: 1px solid rgba(245, 240, 232, 0.4);
}

.btn-outline:hover {
  border-color: var(--flame-light);
  color: var(--flame-light);
  background: rgba(200, 90, 42, 0.08);
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(245, 240, 232, 0.5);
  font-size: 12px;
  letter-spacing: 2px;
}

.hero-scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--flame), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ===== 通用区块 ===== */
.section {
  padding: 100px 32px;
}

.section-inner {
  max-width: 1280px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  letter-spacing: 3px;
  color: var(--flame);
  font-weight: 500;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.section-eyebrow::before,
.section-eyebrow::after {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--flame);
  opacity: 0.5;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  color: var(--charcoal);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 16px;
  color: var(--warm-gray);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== 产品中心 ===== */
.products {
  background: var(--cream);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.product-card {
  background: var(--white);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(26, 24, 21, 0.08);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
  border: 1px solid rgba(26, 24, 21, 0.06);
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(26, 24, 21, 0.14);
}

.product-image {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--cream-dark);
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.product-card:hover .product-image img {
  transform: scale(1.05);
}

.product-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--charcoal);
  color: var(--cream);
  font-size: 12px;
  padding: 6px 14px;
  border-radius: 2px;
  letter-spacing: 1px;
}

.product-info {
  padding: 28px;
}

.product-name {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--charcoal);
  margin-bottom: 10px;
}

.product-desc {
  font-size: 14px;
  color: var(--warm-gray);
  line-height: 1.7;
  margin-bottom: 20px;
}

.product-features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.product-features span {
  font-size: 12px;
  padding: 4px 10px;
  background: var(--cream-dark);
  color: var(--brown);
  border-radius: 2px;
}

.product-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--flame);
  transition: gap 0.3s ease;
}

.product-link:hover {
  gap: 10px;
}

.product-link svg {
  width: 16px;
  height: 16px;
}

/* ===== 工艺优势 ===== */
.craft {
  background: var(--charcoal);
  color: var(--cream);
  position: relative;
  overflow: hidden;
}

.craft::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(ellipse at right center, rgba(200, 90, 42, 0.1), transparent 70%);
}

.craft .section-title {
  color: var(--cream);
}

.craft .section-desc {
  color: var(--warm-gray-light);
}

.craft-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
  z-index: 1;
}

.craft-item {
  padding: 36px 28px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  transition: all 0.4s ease;
}

.craft-item:hover {
  background: rgba(200, 90, 42, 0.08);
  border-color: rgba(200, 90, 42, 0.3);
  transform: translateY(-4px);
}

.craft-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
  color: var(--flame-light);
}

.craft-item h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--cream);
}

.craft-item p {
  font-size: 14px;
  color: var(--warm-gray-light);
  line-height: 1.7;
}

/* ===== 关于我们 ===== */
.about {
  background: var(--cream);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-image {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(26, 24, 21, 0.15);
}

.about-image img {
  width: 100%;
  height: 480px;
  object-fit: cover;
}

.about-image-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  background: var(--charcoal);
  color: var(--cream);
  padding: 20px 28px;
  border-radius: 4px;
  border-left: 3px solid var(--flame);
}

.about-image-badge .number {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 900;
  color: var(--flame-light);
  line-height: 1;
}

.about-image-badge .label {
  font-size: 13px;
  margin-top: 6px;
  color: var(--warm-gray-light);
}

.about-content .section-eyebrow {
  justify-content: flex-start;
}

.about-content .section-eyebrow::after {
  display: none;
}

.about-content .section-title {
  text-align: left;
  margin-bottom: 24px;
}

.about-text {
  font-size: 15px;
  color: var(--warm-gray);
  line-height: 1.9;
  margin-bottom: 20px;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 36px;
  padding-top: 36px;
  border-top: 1px solid rgba(26, 24, 21, 0.1);
}

.about-stat .num {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--flame);
  line-height: 1;
}

.about-stat .txt {
  font-size: 13px;
  color: var(--warm-gray);
  margin-top: 8px;
}

/* ===== 资讯预览 ===== */
.news-preview {
  background: var(--cream-dark);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.news-card {
  background: var(--white);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(26, 24, 21, 0.06);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
  cursor: pointer;
  display: block;
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(26, 24, 21, 0.12);
}

.news-card-image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--cream-dark);
}

.news-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.news-card:hover .news-card-image img {
  transform: scale(1.05);
}

.news-card-body {
  padding: 24px;
}

.news-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 12px;
  color: var(--warm-gray);
}

.news-card-category {
  color: var(--flame);
  font-weight: 500;
}

.news-card-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--charcoal);
  line-height: 1.5;
  margin-bottom: 10px;
  transition: color 0.3s ease;
}

.news-card:hover .news-card-title {
  color: var(--flame);
}

.news-card-excerpt {
  font-size: 14px;
  color: var(--warm-gray);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-more {
  text-align: center;
  margin-top: 48px;
}

/* ===== 联系 CTA ===== */
.contact-cta {
  background: var(--charcoal);
  position: relative;
  overflow: hidden;
}

.contact-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(200, 90, 42, 0.15), transparent 60%);
}

.contact-cta-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.contact-cta h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  color: var(--cream);
  margin-bottom: 16px;
}

.contact-cta p {
  font-size: 16px;
  color: var(--warm-gray-light);
  margin-bottom: 36px;
}

.contact-info {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.contact-info-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--cream);
  font-size: 15px;
}

.contact-info-item svg {
  width: 20px;
  height: 20px;
  color: var(--flame-light);
  flex-shrink: 0;
}

/* ===== 页脚 ===== */
.footer {
  background: #121110;
  color: var(--warm-gray);
  padding: 60px 32px 32px;
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  margin-top: 16px;
  max-width: 320px;
}

.footer-col h4 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--cream);
  margin-bottom: 20px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  font-size: 14px;
  color: var(--warm-gray);
  transition: color 0.3s ease;
}

.footer-col ul li a:hover {
  color: var(--flame-light);
}

.footer-bottom {
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
}

/* ===== 页面头部（内页） ===== */
.page-header {
  padding: 160px 32px 80px;
  background: var(--charcoal);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top center, rgba(200, 90, 42, 0.12), transparent 60%);
}

.page-header-inner {
  position: relative;
  z-index: 1;
}

.page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 700;
  color: var(--cream);
  margin-bottom: 16px;
}

.page-header p {
  font-size: 16px;
  color: var(--warm-gray-light);
  max-width: 560px;
  margin: 0 auto;
}

/* ===== 资讯列表 ===== */
.news-list-section {
  padding: 64px 32px 100px;
  background: var(--cream);
}

.news-list {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.news-list-item {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 28px;
  background: var(--white);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(26, 24, 21, 0.06);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
}

.news-list-item:hover {
  transform: translateX(4px);
  box-shadow: 0 8px 32px rgba(26, 24, 21, 0.1);
}

.news-list-thumb {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--cream-dark);
}

.news-list-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.news-list-item:hover .news-list-thumb img {
  transform: scale(1.05);
}

.news-list-content {
  padding: 28px 28px 28px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.news-list-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 12px;
  color: var(--warm-gray);
}

.news-list-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--charcoal);
  line-height: 1.5;
  margin-bottom: 10px;
  transition: color 0.3s ease;
}

.news-list-item:hover .news-list-title {
  color: var(--flame);
}

.news-list-excerpt {
  font-size: 14px;
  color: var(--warm-gray);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== 文章详情 ===== */
.article-section {
  padding: 64px 32px 100px;
  background: var(--cream);
}

.article-container {
  max-width: 760px;
  margin: 0 auto;
  background: var(--white);
  border-radius: 4px;
  padding: 56px 64px;
  box-shadow: 0 4px 32px rgba(26, 24, 21, 0.08);
}

.article-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--flame);
  margin-bottom: 32px;
  cursor: pointer;
  transition: gap 0.3s ease;
}

.article-back:hover {
  gap: 10px;
}

.article-back svg {
  width: 16px;
  height: 16px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  font-size: 13px;
  color: var(--warm-gray);
}

.article-category {
  color: var(--flame);
  font-weight: 500;
}

.article-title {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.5vw, 36px);
  font-weight: 700;
  color: var(--charcoal);
  line-height: 1.4;
  margin-bottom: 32px;
}

.article-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 36px;
}

.article-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-body h2 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  color: var(--charcoal);
  margin: 36px 0 16px;
  padding-left: 14px;
  border-left: 3px solid var(--flame);
}

.article-body h3 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  color: var(--charcoal);
  margin: 28px 0 12px;
}

.article-body p {
  font-size: 16px;
  line-height: 1.9;
  color: #3A3632;
  margin-bottom: 18px;
}

.article-body ul {
  margin: 16px 0 20px;
  padding-left: 24px;
}

.article-body ul li {
  font-size: 15px;
  line-height: 1.9;
  color: #3A3632;
  margin-bottom: 8px;
  list-style: disc;
}

.article-body blockquote {
  margin: 24px 0;
  padding: 20px 28px;
  background: var(--cream);
  border-left: 3px solid var(--flame);
  font-size: 15px;
  color: var(--brown);
  font-style: italic;
  border-radius: 0 4px 4px 0;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  max-width: 1280px;
  margin: 0 auto 32px;
  padding: 0 32px;
  font-size: 13px;
  color: var(--warm-gray);
}

.breadcrumb a {
  color: var(--flame);
}

.breadcrumb span {
  margin: 0 8px;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .product-grid,
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .craft-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--charcoal);
    flex-direction: column;
    padding: 24px 32px;
    gap: 20px;
    border-bottom: 1px solid rgba(200, 90, 42, 0.2);
  }
  .nav-links.open {
    display: flex;
  }
  .nav-mobile-toggle {
    display: block;
  }
  .product-grid,
  .news-grid,
  .craft-grid {
    grid-template-columns: 1fr;
  }
  .news-list-item {
    grid-template-columns: 1fr;
  }
  .news-list-content {
    padding: 0 24px 24px;
  }
  .section {
    padding: 64px 20px;
  }
  .article-container {
    padding: 32px 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .about-stats {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .contact-info {
    flex-direction: column;
    gap: 16px;
    align-items: center;
  }
}