/* ==========================================================================
   河北润华药业有限公司 — 全局样式
   设计语言：松绿主色 + 暖金点缀，留白充足，传统中医药气质 × 现代极简
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root {
  /* 主色：松绿系 */
  --c-primary: #1f6b3a;
  --c-primary-dark: #14502b;
  --c-primary-light: #2d8a4e;
  --c-primary-soft: #e6f0ea;

  /* 辅色：暖金/米色 */
  --c-accent: #b89048;
  --c-accent-light: #d4b675;
  --c-cream: #f8f5ee;
  --c-cream-dark: #efe9dc;

  /* 中性 */
  --c-ink: #1a1f1c;
  --c-ink-soft: #2c3530;
  --c-muted: #6b7570;
  --c-line: #e3e0d6;
  --c-white: #ffffff;
  --c-bg: #fdfcf8;

  /* 字号（移动端优先） */
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.375rem;
  --fs-2xl: 1.75rem;
  --fs-3xl: 2.25rem;
  --fs-4xl: 3rem;
  --fs-5xl: 4rem;

  /* 字重 */
  --fw-light: 300;
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;

  /* 行高 */
  --lh-tight: 1.2;
  --lh-snug: 1.4;
  --lh-base: 1.7;

  /* 间距 */
  --sp-1: 0.25rem;
  --sp-2: 0.5rem;
  --sp-3: 0.75rem;
  --sp-4: 1rem;
  --sp-5: 1.5rem;
  --sp-6: 2rem;
  --sp-8: 3rem;
  --sp-10: 4rem;
  --sp-12: 6rem;
  --sp-16: 8rem;

  /* 圆角 */
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 16px;
  --r-xl: 24px;
  --r-pill: 999px;

  /* 阴影 */
  --sh-sm: 0 1px 2px rgba(20, 80, 43, 0.06);
  --sh-md: 0 6px 24px rgba(20, 80, 43, 0.08);
  --sh-lg: 0 16px 48px rgba(20, 80, 43, 0.12);
  --sh-xl: 0 24px 80px rgba(20, 80, 43, 0.16);

  /* 容器 */
  --container-max: 1240px;
  --container-pad: 1.5rem;

  /* 过渡 */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --t-fast: 180ms var(--ease);
  --t-base: 320ms var(--ease);
  --t-slow: 560ms var(--ease);
}

/* ---------- 2. 重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: var(--fs-base);
  line-height: var(--lh-base);
  color: var(--c-ink);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
h1, h2, h3, h4, h5, h6 {
  font-family: "Noto Serif SC", "Songti SC", "STSong", serif;
  font-weight: var(--fw-semibold);
  line-height: var(--lh-tight);
  margin: 0 0 var(--sp-4);
  color: var(--c-ink);
}
p { margin: 0 0 var(--sp-4); }
a { color: var(--c-primary); text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--c-primary-dark); }
img, svg { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }

/* ---------- 3. 排版工具 ---------- */
.font-serif { font-family: "Noto Serif SC", serif; }
.text-muted { color: var(--c-muted); }
.text-primary { color: var(--c-primary); }
.text-accent { color: var(--c-accent); }
.text-center { text-align: center; }
.eyebrow {
  display: inline-block;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  letter-spacing: 0.18em;
  color: var(--c-primary);
  text-transform: uppercase;
  margin-bottom: var(--sp-3);
  position: relative;
  padding-left: 2.2em;
}
.eyebrow::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  width: 1.8em; height: 1px;
  background: var(--c-accent);
}
.section-title {
  font-size: clamp(1.75rem, 3.2vw, 2.5rem);
  margin-bottom: var(--sp-3);
  letter-spacing: 0.02em;
}
.section-subtitle {
  font-size: var(--fs-lg);
  color: var(--c-muted);
  max-width: 640px;
  margin: 0 auto var(--sp-8);
}
.section-head { text-align: center; margin-bottom: var(--sp-10); }

/* ---------- 4. 容器 ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}
.section { padding: clamp(3rem, 7vw, 6rem) 0; }

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.85em 1.8em;
  font-size: var(--fs-base);
  font-weight: var(--fw-medium);
  border-radius: var(--r-pill);
  transition: all var(--t-base);
  white-space: nowrap;
  letter-spacing: 0.04em;
}
.btn-primary {
  background: var(--c-primary);
  color: var(--c-white);
  box-shadow: 0 6px 20px rgba(31, 107, 58, 0.25);
}
.btn-primary:hover {
  background: var(--c-primary-dark);
  color: var(--c-white);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(31, 107, 58, 0.35);
}
.btn-ghost {
  background: transparent;
  color: var(--c-primary);
  border: 1.5px solid var(--c-primary);
}
.btn-ghost:hover {
  background: var(--c-primary);
  color: var(--c-white);
  transform: translateY(-2px);
}
.btn .arrow { transition: transform var(--t-fast); }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- 6. 导航栏 ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(253, 252, 248, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: all var(--t-base);
}
.nav.is-scrolled {
  background: rgba(253, 252, 248, 0.98);
  border-bottom-color: var(--c-line);
  box-shadow: var(--sh-sm);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  text-decoration: none;
}
.brand img { height: 44px; width: auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name {
  font-family: "Noto Serif SC", serif;
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  color: var(--c-primary-dark);
  letter-spacing: 0.05em;
}
.brand-tag {
  font-size: 0.7rem;
  color: var(--c-muted);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-top: 2px;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  list-style: none;
  margin: 0; padding: 0;
}
.nav-link {
  position: relative;
  padding: 0.6em 1.2em;
  font-size: var(--fs-base);
  font-weight: var(--fw-medium);
  color: var(--c-ink-soft);
  border-radius: var(--r-pill);
  transition: all var(--t-fast);
}
.nav-link:hover { color: var(--c-primary); }
.nav-link.is-active {
  color: var(--c-primary);
  background: var(--c-primary-soft);
}
.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-md);
  color: var(--c-primary);
}
.nav-toggle svg { width: 24px; height: 24px; }

@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: fixed;
    top: 72px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--c-white);
    border-top: 1px solid var(--c-line);
    padding: var(--sp-3) 0;
    transform: translateY(-110%);
    transition: transform var(--t-base);
    box-shadow: var(--sh-md);
  }
  .nav-menu.is-open { transform: translateY(0); }
  .nav-menu li { width: 100%; }
  .nav-link {
    display: block;
    border-radius: 0;
    padding: 1em var(--container-pad);
    border-bottom: 1px solid var(--c-line);
  }
  .nav-link.is-active { background: var(--c-primary-soft); }
}

/* ---------- 7. Hero ---------- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 80% 20%, rgba(184, 144, 72, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 20% 80%, rgba(31, 107, 58, 0.18) 0%, transparent 50%),
    linear-gradient(135deg, #f8f5ee 0%, #e6f0ea 100%);
  padding-top: 72px;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200' viewBox='0 0 200 200'><g fill='none' stroke='%231f6b3a' stroke-width='0.4' opacity='0.08'><path d='M100 30 Q70 60 70 100 Q70 140 100 170 Q130 140 130 100 Q130 60 100 30 Z'/><path d='M100 30 L100 170 M70 100 L130 100'/></g></svg>");
  background-size: 220px;
  opacity: 0.6;
  pointer-events: none;
}
.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--sp-10);
  align-items: center;
  width: 100%;
}
.hero-content { padding: var(--sp-10) 0; }
.hero h1 {
  font-size: clamp(2.2rem, 5.4vw, 4rem);
  line-height: 1.1;
  margin-bottom: var(--sp-5);
  letter-spacing: 0.02em;
}
.hero h1 .accent {
  color: var(--c-primary);
  position: relative;
  display: inline-block;
}
.hero h1 .accent::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -0.1em;
  height: 0.3em;
  background: var(--c-accent);
  opacity: 0.35;
  z-index: -1;
}
.hero-lead {
  font-size: var(--fs-lg);
  color: var(--c-ink-soft);
  max-width: 540px;
  margin-bottom: var(--sp-8);
  line-height: 1.8;
}
.hero-actions { display: flex; gap: var(--sp-4); flex-wrap: wrap; }
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
  margin-top: var(--sp-10);
  padding-top: var(--sp-6);
  border-top: 1px solid var(--c-line);
}
.stat-num {
  font-family: "Noto Serif SC", serif;
  font-size: var(--fs-3xl);
  font-weight: var(--fw-bold);
  color: var(--c-primary);
  line-height: 1;
}
.stat-label { font-size: var(--fs-sm); color: var(--c-muted); margin-top: var(--sp-2); }

.hero-visual {
  position: relative;
  width: 100%;
  aspect-ratio: 1/1;
  max-width: 520px;
  margin-left: auto;
}
.hero-circle {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 100%);
  box-shadow: var(--sh-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.hero-circle::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='400' height='400' viewBox='0 0 400 400'><g fill='none' stroke='%23ffffff' stroke-width='0.6' opacity='0.18'><circle cx='200' cy='200' r='50'/><circle cx='200' cy='200' r='100'/><circle cx='200' cy='200' r='150'/><path d='M200 50 L200 350 M50 200 L350 200' stroke-dasharray='4 6'/><path d='M90 90 L310 310 M310 90 L90 310' stroke-dasharray='4 6'/></g></svg>");
  background-size: contain;
}
.hero-circle img {
  position: relative;
  width: 60%;
  filter: drop-shadow(0 12px 30px rgba(0, 0, 0, 0.25));
}
.hero-floating {
  position: absolute;
  background: var(--c-white);
  border-radius: var(--r-lg);
  padding: var(--sp-4) var(--sp-5);
  box-shadow: var(--sh-lg);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  z-index: 2;
}
.hero-floating .icon {
  width: 40px; height: 40px;
  border-radius: var(--r-md);
  background: var(--c-primary-soft);
  color: var(--c-primary);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.hero-floating.fl-1 { top: 8%; left: -8%; animation: float 6s ease-in-out infinite; }
.hero-floating.fl-2 { bottom: 12%; right: -6%; animation: float 7s ease-in-out infinite reverse; }
.hero-floating .label { color: var(--c-muted); font-size: var(--fs-xs); }
.hero-floating .value { color: var(--c-ink); font-weight: var(--fw-semibold); }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-lead { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-stats { max-width: 480px; margin-left: auto; margin-right: auto; }
  .hero-visual { max-width: 360px; margin: 0 auto; }
  .hero-floating.fl-1 { left: -4%; }
  .hero-floating.fl-2 { right: -4%; }
}
@media (max-width: 480px) {
  .hero { min-height: 80vh; }
  .hero-stats { grid-template-columns: 1fr; gap: var(--sp-4); text-align: center; }
}

/* ---------- 8. 业务板块 ---------- */
.features {
  background: var(--c-white);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--sp-5);
}
.feature-card {
  position: relative;
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  transition: all var(--t-base);
  overflow: hidden;
}
.feature-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-base);
}
.feature-card:hover {
  border-color: var(--c-primary);
  transform: translateY(-6px);
  box-shadow: var(--sh-lg);
}
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon {
  width: 60px; height: 60px;
  border-radius: var(--r-md);
  background: var(--c-primary-soft);
  color: var(--c-primary);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--sp-4);
  transition: all var(--t-base);
}
.feature-card:hover .feature-icon {
  background: var(--c-primary);
  color: var(--c-white);
  transform: rotate(-6deg);
}
.feature-icon svg { width: 32px; height: 32px; }
.feature-title {
  font-size: var(--fs-xl);
  margin-bottom: var(--sp-3);
  color: var(--c-ink);
}
.feature-desc {
  color: var(--c-muted);
  line-height: 1.8;
  font-size: var(--fs-sm);
  margin: 0;
}

/* ---------- 9. 关于我们：使命 / 价值观 ---------- */
.about-section {
  background: var(--c-cream);
  position: relative;
  overflow: hidden;
}
.about-section::before {
  content: "道";
  position: absolute;
  top: -2rem; right: -2rem;
  font-family: "Noto Serif SC", serif;
  font-size: 28rem;
  color: var(--c-primary);
  opacity: 0.025;
  font-weight: var(--fw-bold);
  line-height: 1;
  pointer-events: none;
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-10);
  align-items: center;
  position: relative;
}
.about-visual {
  position: relative;
  width: 100%;
  aspect-ratio: 4/5;
  border-radius: var(--r-xl);
  overflow: hidden;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-dark) 100%);
  box-shadow: var(--sh-xl);
}
.about-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='600' height='750' viewBox='0 0 600 750'><g fill='none' stroke='%23ffffff' stroke-width='0.5' opacity='0.2'><path d='M300 100 C200 200 200 300 300 400 C400 500 400 600 300 700'/><path d='M150 150 Q300 250 450 150 M150 350 Q300 450 450 350 M150 550 Q300 650 450 550' stroke-dasharray='3 5'/><circle cx='300' cy='375' r='100'/><circle cx='300' cy='375' r='160'/></g></svg>");
  background-size: cover;
}
.about-visual .visual-content {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: var(--sp-6);
  background: linear-gradient(to top, rgba(0,0,0,0.5), transparent);
  color: var(--c-white);
}
.about-visual .visual-quote {
  font-family: "Noto Serif SC", serif;
  font-size: var(--fs-xl);
  line-height: 1.5;
  margin: 0;
}
.about-visual .visual-quote::before { content: '\201C'; font-size: 2em; line-height: 0; vertical-align: -0.2em; opacity: 0.7; margin-right: 0.1em; }

.values { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-5); margin-top: var(--sp-6); }
.value-item {
  padding: var(--sp-5);
  background: var(--c-white);
  border-radius: var(--r-md);
  border-left: 3px solid var(--c-accent);
}
.value-item h4 { font-size: var(--fs-base); margin-bottom: var(--sp-2); color: var(--c-primary-dark); }
.value-item p { font-size: var(--fs-sm); color: var(--c-muted); margin: 0; line-height: 1.7; }

@media (max-width: 860px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-visual { max-width: 420px; margin: 0 auto; }
  .values { grid-template-columns: 1fr; }
}

/* ---------- 10. 数字 / 资质条 ---------- */
.stats {
  background: linear-gradient(135deg, var(--c-primary-dark) 0%, var(--c-primary) 100%);
  color: var(--c-white);
  position: relative;
  overflow: hidden;
}
.stats::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='100' height='100' viewBox='0 0 100 100'><circle cx='50' cy='50' r='40' fill='none' stroke='%23ffffff' stroke-width='0.3' opacity='0.15'/><circle cx='50' cy='50' r='25' fill='none' stroke='%23ffffff' stroke-width='0.3' opacity='0.15'/></svg>");
  background-size: 120px;
  opacity: 0.5;
}
.stats .container { position: relative; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-6);
  text-align: center;
}
.stat-item {
  padding: var(--sp-5);
  border-right: 1px solid rgba(255,255,255,0.15);
}
.stat-item:last-child { border-right: 0; }
.stat-item .num {
  font-family: "Noto Serif SC", serif;
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: var(--fw-bold);
  line-height: 1;
  color: var(--c-white);
}
.stat-item .num .unit { font-size: 0.5em; color: var(--c-accent-light); margin-left: 0.1em; }
.stat-item .label {
  font-size: var(--fs-sm);
  color: rgba(255,255,255,0.8);
  margin-top: var(--sp-3);
  letter-spacing: 0.1em;
}
@media (max-width: 760px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item { border-right: 0; border-bottom: 1px solid rgba(255,255,255,0.15); padding-bottom: var(--sp-6); }
  .stat-item:nth-child(odd) { border-right: 1px solid rgba(255,255,255,0.15); }
  .stat-item:nth-last-child(-n+2) { border-bottom: 0; }
}

/* ---------- 11. 资质 / 时间线 ---------- */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--sp-4);
}
.cert-card {
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  padding: var(--sp-5);
  text-align: center;
  transition: all var(--t-base);
}
.cert-card:hover { border-color: var(--c-primary); transform: translateY(-4px); box-shadow: var(--sh-md); }
.cert-badge {
  width: 56px; height: 56px;
  margin: 0 auto var(--sp-3);
  border-radius: 50%;
  background: var(--c-primary-soft);
  color: var(--c-primary);
  display: flex; align-items: center; justify-content: center;
  font-family: "Noto Serif SC", serif;
  font-size: var(--fs-xl);
  font-weight: var(--fw-semibold);
}
.cert-card h4 { font-size: var(--fs-base); margin-bottom: var(--sp-1); }
.cert-card p { font-size: var(--fs-xs); color: var(--c-muted); margin: 0; }

/* ---------- 12. 产品服务页 ---------- */
.page-hero {
  padding-top: 120px;
  padding-bottom: var(--sp-10);
  background:
    radial-gradient(ellipse at 80% 30%, rgba(184, 144, 72, 0.1) 0%, transparent 50%),
    linear-gradient(180deg, var(--c-cream) 0%, var(--c-bg) 100%);
  text-align: center;
}
.page-hero h1 {
  font-size: clamp(2rem, 4vw, 3.25rem);
  margin-bottom: var(--sp-3);
}
.page-hero p { font-size: var(--fs-lg); color: var(--c-muted); max-width: 720px; margin: 0 auto; }

.product-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--sp-5);
}
.product-card {
  background: var(--c-white);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--sh-sm);
  transition: all var(--t-base);
  display: flex;
  flex-direction: column;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--sh-lg); }
.product-cover {
  width: 100%;
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, var(--c-primary-soft) 0%, var(--c-cream) 100%);
  position: relative;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.product-cover svg { width: 50%; max-width: 140px; height: auto; color: var(--c-primary); }
.product-cover::after {
  content: "";
  position: absolute; top: var(--sp-3); right: var(--sp-3);
  width: 36px; height: 36px;
  background: var(--c-white);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--sh-sm);
}
.product-body { padding: var(--sp-5); flex: 1; display: flex; flex-direction: column; }
.product-tag {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--c-accent);
  letter-spacing: 0.15em;
  margin-bottom: var(--sp-2);
  text-transform: uppercase;
}
.product-card h3 { font-size: var(--fs-xl); margin-bottom: var(--sp-3); color: var(--c-primary-dark); }
.product-card p { color: var(--c-muted); font-size: var(--fs-sm); flex: 1; line-height: 1.8; }
.product-card ul {
  list-style: none;
  margin: var(--sp-4) 0 0;
  padding: 0;
  border-top: 1px dashed var(--c-line);
  padding-top: var(--sp-4);
}
.product-card ul li {
  font-size: var(--fs-sm);
  color: var(--c-ink-soft);
  padding: var(--sp-1) 0;
  display: flex; align-items: center; gap: var(--sp-2);
}
.product-card ul li::before {
  content: "";
  width: 5px; height: 5px;
  background: var(--c-accent);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ---------- 13. 流程 ---------- */
.process {
  background: var(--c-cream);
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-4);
  position: relative;
}
.process-step {
  text-align: center;
  position: relative;
  padding: 0 var(--sp-3);
}
.process-num {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--c-white);
  color: var(--c-primary);
  font-family: "Noto Serif SC", serif;
  font-size: var(--fs-2xl);
  font-weight: var(--fw-bold);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto var(--sp-4);
  box-shadow: var(--sh-md);
  position: relative;
  z-index: 1;
}
.process-step h4 { font-size: var(--fs-lg); margin-bottom: var(--sp-2); color: var(--c-primary-dark); }
.process-step p { font-size: var(--fs-sm); color: var(--c-muted); margin: 0; line-height: 1.7; }
@media (max-width: 760px) {
  .process-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 460px) {
  .process-grid { grid-template-columns: 1fr; }
}

/* ---------- 14. 关于我们 - 时间线 ---------- */
.timeline { position: relative; max-width: 820px; margin: 0 auto; padding: var(--sp-4) 0; }
.timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0; bottom: 0;
  width: 2px;
  background: var(--c-line);
  transform: translateX(-50%);
}
.timeline-item {
  position: relative;
  width: 50%;
  padding: var(--sp-5) var(--sp-6);
  margin-bottom: var(--sp-4);
}
.timeline-item:nth-child(odd) { left: 0; text-align: right; }
.timeline-item:nth-child(even) { left: 50%; }
.timeline-item::after {
  content: "";
  position: absolute;
  top: var(--sp-7);
  width: 16px; height: 16px;
  background: var(--c-primary);
  border: 3px solid var(--c-white);
  border-radius: 50%;
  box-shadow: 0 0 0 2px var(--c-primary);
}
.timeline-item:nth-child(odd)::after { right: -8px; }
.timeline-item:nth-child(even)::after { left: -8px; }
.timeline-year {
  font-family: "Noto Serif SC", serif;
  font-size: var(--fs-2xl);
  font-weight: var(--fw-bold);
  color: var(--c-accent);
  line-height: 1;
  margin-bottom: var(--sp-2);
}
.timeline-item h4 { font-size: var(--fs-lg); margin-bottom: var(--sp-2); color: var(--c-primary-dark); }
.timeline-item p { font-size: var(--fs-sm); color: var(--c-muted); margin: 0; line-height: 1.7; }
@media (max-width: 760px) {
  .timeline::before { left: 20px; }
  .timeline-item { width: 100%; left: 0 !important; text-align: left !important; padding-left: 50px; }
  .timeline-item::after { left: 12px !important; right: auto !important; }
}

/* ---------- 15. 联系我们 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--sp-8);
}
.contact-info { display: flex; flex-direction: column; gap: var(--sp-4); }
.info-card {
  background: var(--c-white);
  border-radius: var(--r-md);
  padding: var(--sp-5);
  display: flex; align-items: flex-start; gap: var(--sp-4);
  border: 1px solid var(--c-line);
  transition: all var(--t-base);
}
.info-card:hover { border-color: var(--c-primary); box-shadow: var(--sh-md); }
.info-icon {
  width: 48px; height: 48px;
  border-radius: var(--r-md);
  background: var(--c-primary-soft);
  color: var(--c-primary);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.info-icon svg { width: 24px; height: 24px; }
.info-body h4 { font-size: var(--fs-base); margin-bottom: var(--sp-1); color: var(--c-primary-dark); }
.info-body p, .info-body a { color: var(--c-muted); font-size: var(--fs-sm); margin: 0; line-height: 1.7; }
.info-body a:hover { color: var(--c-primary); }

.contact-form {
  background: var(--c-white);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  box-shadow: var(--sh-md);
  border: 1px solid var(--c-line);
}
.contact-form h3 { font-size: var(--fs-2xl); margin-bottom: var(--sp-2); }
.contact-form .form-intro { color: var(--c-muted); font-size: var(--fs-sm); margin-bottom: var(--sp-5); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-4); margin-bottom: var(--sp-4); }
.form-group { display: flex; flex-direction: column; }
.form-group.full { grid-column: 1 / -1; }
.form-group label {
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--c-ink-soft);
  margin-bottom: var(--sp-2);
}
.form-group label .req { color: #c0392b; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 0.85em 1em;
  font-family: inherit;
  font-size: var(--fs-base);
  color: var(--c-ink);
  background: var(--c-bg);
  border: 1.5px solid var(--c-line);
  border-radius: var(--r-md);
  transition: all var(--t-fast);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none;
  border-color: var(--c-primary);
  background: var(--c-white);
  box-shadow: 0 0 0 4px rgba(31, 107, 58, 0.08);
}
.form-group textarea { min-height: 120px; resize: vertical; }
.contact-form .btn { width: 100%; justify-content: center; padding: 1em; }
@media (max-width: 860px) {
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; gap: var(--sp-4); }
}

.map-card {
  margin-top: var(--sp-6);
  background: var(--c-white);
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--c-line);
  box-shadow: var(--sh-sm);
}
.map-card .map-head {
  padding: var(--sp-4) var(--sp-5);
  background: var(--c-primary-soft);
  display: flex; align-items: center; gap: var(--sp-3);
  border-bottom: 1px solid var(--c-line);
}
.map-card .map-head h4 { margin: 0; font-size: var(--fs-base); color: var(--c-primary-dark); }
.map-card .map-body {
  position: relative;
  width: 100%;
  aspect-ratio: 21/9;
  background:
    linear-gradient(135deg, var(--c-cream) 0%, var(--c-primary-soft) 100%);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.map-card .map-body::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='100' height='100' viewBox='0 0 100 100'><g fill='none' stroke='%231f6b3a' stroke-width='0.4' opacity='0.2'><path d='M0 50 L100 50'/><path d='M50 0 L50 100'/><path d='M0 0 L100 100' stroke-dasharray='3 4'/><path d='M100 0 L0 100' stroke-dasharray='3 4'/><circle cx='50' cy='50' r='30'/><circle cx='50' cy='50' r='15'/></g></svg>");
  background-size: 100px;
}
.map-pin {
  position: relative;
  z-index: 1;
  display: flex; flex-direction: column; align-items: center; gap: var(--sp-2);
  color: var(--c-primary);
  animation: bounce 2s ease-in-out infinite;
}
.map-pin svg { width: 48px; height: 48px; filter: drop-shadow(0 6px 12px rgba(31, 107, 58, 0.4)); }
.map-pin span { font-size: var(--fs-sm); color: var(--c-primary-dark); font-weight: var(--fw-medium); background: var(--c-white); padding: 0.4em 0.8em; border-radius: var(--r-pill); box-shadow: var(--sh-sm); }
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* 位置示意地图（SVG 路线图） */
.map-svg { display: block; width: 100%; height: 100%; }
.map-link {
  margin-left: auto;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--c-primary);
  padding: 0.35em 0.9em;
  border: 1px solid var(--c-primary);
  border-radius: var(--r-pill);
  transition: all var(--t-fast);
  white-space: nowrap;
}
.map-link:hover { background: var(--c-primary); color: var(--c-white); }
@keyframes ping {
  0%   { r: 14;  opacity: 0.55; }
  100% { r: 40;  opacity: 0;    }
}
.pulse { transform-origin: center; transform-box: fill-box; }
.pulse-1 { animation: ping 2.4s ease-out infinite; }
.pulse-2 { animation: ping 2.4s ease-out infinite 1.2s; }

/* ---------- 16. CTA ---------- */
.cta {
  background:
    radial-gradient(ellipse at 20% 50%, rgba(184, 144, 72, 0.2) 0%, transparent 50%),
    linear-gradient(135deg, var(--c-primary-dark) 0%, var(--c-primary) 100%);
  color: var(--c-white);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='80' height='80' viewBox='0 0 80 80'><path d='M40 10 L50 30 L70 35 L55 50 L60 70 L40 60 L20 70 L25 50 L10 35 L30 30 Z' fill='%23ffffff' opacity='0.04'/></svg>");
  background-size: 80px;
}
.cta .container { position: relative; }
.cta h2 { color: var(--c-white); font-size: clamp(1.75rem, 3.6vw, 2.75rem); margin-bottom: var(--sp-3); }
.cta p { color: rgba(255,255,255,0.85); font-size: var(--fs-lg); max-width: 640px; margin: 0 auto var(--sp-6); }
.cta .btn-primary { background: var(--c-accent); box-shadow: 0 6px 20px rgba(184, 144, 72, 0.4); }
.cta .btn-primary:hover { background: var(--c-accent-light); box-shadow: 0 10px 28px rgba(184, 144, 72, 0.5); }

/* ---------- 17. Footer ---------- */
.footer {
  background: #0e2d1a;
  color: rgba(255,255,255,0.7);
  padding: var(--sp-10) 0 var(--sp-5);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--sp-8);
  margin-bottom: var(--sp-8);
}
.footer-brand { display: flex; align-items: center; gap: var(--sp-3); margin-bottom: var(--sp-4); }
.footer-brand img { height: 44px; filter: brightness(0) invert(1); }
.footer-brand .brand-name { color: var(--c-white); }
.footer-brand .brand-tag { color: rgba(255,255,255,0.5); }
.footer-about { font-size: var(--fs-sm); line-height: 1.8; color: rgba(255,255,255,0.6); margin: 0 0 var(--sp-4); }
.footer h5 {
  font-family: "Noto Sans SC", sans-serif;
  font-size: var(--fs-base);
  color: var(--c-white);
  margin-bottom: var(--sp-4);
  font-weight: var(--fw-medium);
}
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer ul li { margin-bottom: var(--sp-2); }
.footer ul a { color: rgba(255,255,255,0.65); font-size: var(--fs-sm); transition: color var(--t-fast); }
.footer ul a:hover { color: var(--c-accent-light); }
.footer-contact-item { display: flex; gap: var(--sp-2); font-size: var(--fs-sm); margin-bottom: var(--sp-2); color: rgba(255,255,255,0.65); }
.footer-contact-item svg { width: 16px; height: 16px; color: var(--c-accent-light); flex-shrink: 0; margin-top: 2px; }
.footer-bottom {
  padding-top: var(--sp-5);
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-3);
  font-size: var(--fs-xs);
  color: rgba(255,255,255,0.5);
}
.footer-bottom a { color: rgba(255,255,255,0.6); }
.footer-bottom a:hover { color: var(--c-accent-light); }
.footer-legal { display: flex; gap: var(--sp-4); flex-wrap: wrap; }
.icp-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  padding: 0.3em 0.7em;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--r-sm);
  font-size: var(--fs-xs);
}
.icp-badge img { width: 14px; height: 14px; }

@media (max-width: 860px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ---------- 18. 滚动渐入动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 100ms; }
.reveal-delay-2 { transition-delay: 200ms; }
.reveal-delay-3 { transition-delay: 300ms; }
.reveal-delay-4 { transition-delay: 400ms; }

/* ---------- 19. 表单提示 ---------- */
.form-success {
  display: none;
  padding: var(--sp-4);
  background: var(--c-primary-soft);
  color: var(--c-primary-dark);
  border-radius: var(--r-md);
  font-size: var(--fs-sm);
  margin-top: var(--sp-3);
  text-align: center;
}
.form-success.is-shown { display: block; animation: fadeIn 0.4s var(--ease); }
@keyframes fadeIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }

/* ---------- 20. 减少动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}