/* ============================================================
   禾丰米业 · 企业官网样式
   设计体系：稻田深绿 × 丰收金 × 米白
   ============================================================ */

/* ---------- 字体（本地子集化字体） ---------- */
@font-face {
  font-family: "HFSans";
  src: url("../fonts/HFSans-subset.woff2") format("woff2");
  font-weight: 300 700;
  font-display: swap;
}
@font-face {
  font-family: "HFSerif";
  src: url("../fonts/HFSerif-subset.woff2") format("woff2");
  font-weight: 400 900;
  font-display: swap;
}

/* ---------- 设计令牌 ---------- */
:root {
  --cream: #F7F2E7;
  --cream-2: #F0E9D9;
  --paper: #FFFDF7;
  --green-900: #223627;
  --green-800: #2A422E;
  --green-700: #2F4B33;
  --green-600: #3E5C3E;
  --green-100: #E4EBDD;
  --gold-500: #D9A93C;
  --gold-600: #B8862E;
  --gold-100: #F3E5C3;
  --ink: #2E2A22;
  --mute: #6E6656;
  --line: rgba(46, 42, 34, 0.12);
  --line-light: rgba(255, 253, 247, 0.16);
  --red: #A63D2F;
  --shadow-sm: 0 2px 10px rgba(46, 42, 34, 0.07);
  --shadow-md: 0 12px 34px rgba(46, 42, 34, 0.12);
  --radius: 14px;
  --container: 1200px;
  --font-sans: "HFSans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-serif: "HFSerif", "Songti SC", "SimSun", serif;
}

/* ---------- 基础 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--cream);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* 选区 */
::selection { background: var(--gold-500); color: var(--green-900); }

/* 无障碍：键盘焦点 */
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--gold-500);
  outline-offset: 2px;
}

/* ---------- 通用区块 ---------- */
.section { padding: 96px 0; }
.section--cream { background: var(--cream-2); }
.section--green {
  background: var(--green-700);
  color: var(--cream);
}
.section--paper { background: var(--paper); }

.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  letter-spacing: 0.35em;
  color: var(--gold-600);
  font-weight: 600;
  margin-bottom: 14px;
  text-transform: uppercase;
}
.kicker::before, .kicker::after {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--gold-500);
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 700;
  color: var(--green-900);
  line-height: 1.25;
  letter-spacing: 0.02em;
}
.section--green .section-title { color: var(--cream); }
.section--green .kicker { color: var(--gold-500); }
.section-desc { margin-top: 18px; color: var(--mute); font-size: 16.5px; }
.section--green .section-desc { color: rgba(247, 242, 231, 0.82); }

/* 稻穗分隔线（签名元素） */
.rice-ear-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 22px;
}
.rice-ear-divider svg { width: 92px; height: 20px; }
.rice-ear-divider .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--gold-500); }

/* 米字水印（签名元素） */
.grain-mark {
  position: absolute;
  font-family: var(--font-serif);
  color: var(--green-700);
  opacity: 0.045;
  font-size: 340px;
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 34px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.06em;
  border: 1.5px solid transparent;
  transition: all 0.28s ease;
  white-space: nowrap;
}
.btn--gold { background: var(--gold-500); color: var(--green-900); }
.btn--gold:hover { background: var(--gold-600); color: var(--paper); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(184, 134, 46, 0.35); }
.btn--green { background: var(--green-700); color: var(--cream); }
.btn--green:hover { background: var(--green-800); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn--ghost { border-color: rgba(255, 253, 247, 0.55); color: var(--paper); background: transparent; }
.btn--ghost:hover { background: rgba(255, 253, 247, 0.12); border-color: var(--paper); }
.btn--outline { border-color: var(--green-700); color: var(--green-700); background: transparent; }
.btn--outline:hover { background: var(--green-700); color: var(--cream); }
.btn .arrow { transition: transform 0.28s ease; }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- 页头 ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  transition: background 0.32s ease, box-shadow 0.32s ease, padding 0.32s ease;
  padding: 18px 0;
  background: transparent;
}
.site-header.scrolled {
  background: rgba(34, 54, 39, 0.96);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.18);
  padding: 10px 0;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { width: 44px; height: 44px; }
.brand-name { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name .zh {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--paper);
  letter-spacing: 0.12em;
}
.brand-name .en {
  font-size: 10.5px;
  letter-spacing: 0.34em;
  color: var(--gold-500);
  text-transform: uppercase;
  margin-top: 3px;
}
.main-nav ul { display: flex; gap: 34px; }
.main-nav a {
  position: relative;
  color: rgba(255, 253, 247, 0.9);
  font-size: 15.5px;
  letter-spacing: 0.08em;
  padding: 6px 2px;
  transition: color 0.25s ease;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--gold-500);
  transition: width 0.28s ease;
}
.main-nav a:hover, .main-nav a.active { color: var(--gold-500); }
.main-nav a:hover::after, .main-nav a.active::after { width: 100%; }
.header-phone {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--paper);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.header-phone svg { color: var(--gold-500); }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 42px;
  height: 42px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--paper);
  transition: all 0.3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 主视觉 Hero ---------- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  animation: heroZoom 14s ease-out forwards;
}
@keyframes heroZoom {
  from { transform: scale(1.08); }
  to { transform: scale(1); }
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(34, 54, 39, 0.78) 0%, rgba(34, 54, 39, 0.42) 55%, rgba(34, 54, 39, 0.12) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
  padding: 150px 0 90px;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--gold-500);
  letter-spacing: 0.4em;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 26px;
}
.hero-tag::before { content: ""; width: 44px; height: 1.5px; background: var(--gold-500); }
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(40px, 5.6vw, 68px);
  font-weight: 800;
  color: var(--paper);
  line-height: 1.22;
  letter-spacing: 0.03em;
}
.hero-title em {
  font-style: normal;
  color: var(--gold-500);
}
.hero-sub {
  margin-top: 26px;
  color: rgba(255, 253, 247, 0.88);
  font-size: 18px;
  max-width: 560px;
  line-height: 1.9;
}
.hero-actions { display: flex; gap: 16px; margin-top: 40px; flex-wrap: wrap; }
.hero-scroll {
  position: absolute;
  bottom: 34px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: rgba(255, 253, 247, 0.75);
  font-size: 13px;
  letter-spacing: 0.3em;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.hero-scroll .line {
  width: 1.5px;
  height: 42px;
  background: linear-gradient(to bottom, var(--gold-500), transparent);
  animation: scrollHint 1.8s ease-in-out infinite;
}
@keyframes scrollHint {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* 标语条 */
.pledge-bar {
  background: var(--green-700);
  border-top: 1px solid rgba(217, 169, 60, 0.28);
  border-bottom: 1px solid rgba(217, 169, 60, 0.28);
}
.pledge-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}
.pledge-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 22px 20px;
  color: var(--cream);
  font-size: 16px;
  letter-spacing: 0.06em;
}
.pledge-item + .pledge-item { border-left: 1px solid rgba(217, 169, 60, 0.25); }
.pledge-item svg { color: var(--gold-500); flex-shrink: 0; }
.pledge-item strong { color: var(--gold-500); font-weight: 700; }

/* ---------- 首页：关于预览 ---------- */
.about-preview { position: relative; }
.about-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-media { position: relative; }
.about-media .main-img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  width: 100%;
  height: 460px;
  object-fit: cover;
}
.about-media .float-card {
  position: absolute;
  right: -22px;
  bottom: -26px;
  background: var(--paper);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 20px 26px;
  display: flex;
  align-items: center;
  gap: 16px;
  border-left: 4px solid var(--gold-500);
}
.about-media .float-card .num {
  font-family: var(--font-serif);
  font-size: 38px;
  font-weight: 800;
  color: var(--green-700);
  line-height: 1;
}
.about-media .float-card .label { font-size: 13.5px; color: var(--mute); line-height: 1.5; }
.about-body .kicker { justify-content: flex-start; }
.about-body .kicker::after { display: none; }
.about-body h3 {
  font-family: var(--font-serif);
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 700;
  color: var(--green-900);
  line-height: 1.35;
  margin-bottom: 22px;
}
.about-body p { color: var(--mute); margin-bottom: 16px; font-size: 16px; }
.about-points { margin: 26px 0 34px; display: grid; gap: 14px; }
.about-points li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  color: var(--green-800);
}
.about-points li svg { color: var(--gold-600); flex-shrink: 0; }

/* 数据条 */
.stat-band { position: relative; }
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.stat-item {
  text-align: center;
  padding: 40px 20px;
  border-radius: var(--radius);
  background: var(--paper);
  border: 1px solid var(--line);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.stat-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.stat-item .num {
  font-family: var(--font-serif);
  font-size: 52px;
  font-weight: 800;
  color: var(--green-700);
  line-height: 1;
}
.stat-item .num .unit { font-size: 22px; color: var(--gold-600); margin-left: 2px; }
.stat-item .label { margin-top: 12px; color: var(--mute); font-size: 15px; letter-spacing: 0.1em; }
.stat-item .label::before {
  content: "";
  display: block;
  width: 26px;
  height: 2px;
  background: var(--gold-500);
  margin: 0 auto 12px;
}

/* ---------- 优势卡片 ---------- */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.adv-card {
  background: var(--paper);
  border-radius: var(--radius);
  padding: 38px 28px;
  border: 1px solid var(--line);
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.adv-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.adv-card .icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: var(--green-100);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green-700);
  margin-bottom: 22px;
}
.adv-card h4 { font-size: 19px; font-weight: 700; color: var(--green-900); margin-bottom: 10px; }
.adv-card p { font-size: 14.5px; color: var(--mute); line-height: 1.8; }
.adv-card .no {
  position: absolute;
  top: 18px;
  right: 22px;
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 800;
  color: var(--gold-100);
  line-height: 1;
}

/* ---------- 产品卡片 ---------- */
.prod-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.prod-card {
  background: var(--paper);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.prod-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.prod-card .thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1 / 1;
}
.prod-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.prod-card:hover .thumb img { transform: scale(1.06); }
.prod-card .badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--green-700);
  color: var(--paper);
  font-size: 12.5px;
  padding: 4px 12px;
  border-radius: 999px;
  letter-spacing: 0.08em;
}
.prod-card .badge--gold { background: var(--gold-500); color: var(--green-900); }
.prod-card .body { padding: 22px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.prod-card h4 { font-family: var(--font-serif); font-size: 20px; color: var(--green-900); font-weight: 700; }
.prod-card .spec { margin-top: 6px; font-size: 13.5px; color: var(--gold-600); letter-spacing: 0.06em; }
.prod-card p { margin-top: 12px; font-size: 14px; color: var(--mute); line-height: 1.75; flex: 1; }
.prod-card .link {
  margin-top: 18px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--green-700);
}
.prod-card .link svg { transition: transform 0.25s ease; }
.prod-card:hover .link svg { transform: translateX(4px); }

/* ---------- 新闻卡片 ---------- */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.news-card {
  background: var(--paper);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.news-card .thumb { aspect-ratio: 4 / 3; overflow: hidden; position: relative; }
.news-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.news-card:hover .thumb img { transform: scale(1.05); }
.news-card .date-tag {
  position: absolute;
  left: 16px;
  bottom: 14px;
  background: rgba(34, 54, 39, 0.86);
  color: var(--paper);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 13px;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.news-card .date-tag svg { color: var(--gold-500); }
.news-card .body { padding: 22px 24px 26px; }
.news-card .cat { font-size: 12.5px; color: var(--gold-600); font-weight: 700; letter-spacing: 0.2em; }
.news-card h4 { margin-top: 8px; font-size: 18px; font-weight: 700; color: var(--green-900); line-height: 1.5; }
.news-card p { margin-top: 10px; font-size: 14px; color: var(--mute); line-height: 1.75; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ---------- 绿色 CTA 横幅 ---------- */
.cta-banner {
  position: relative;
  overflow: hidden;
  padding: 110px 0;
}
.cta-banner .bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}
.cta-banner .mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(34, 54, 39, 0.88) 0%, rgba(34, 54, 39, 0.72) 60%, rgba(34, 54, 39, 0.45) 100%);
}
.cta-content { position: relative; z-index: 2; max-width: 700px; }
.cta-content h3 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.4vw, 42px);
  color: var(--paper);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.02em;
}
.cta-content p { margin: 18px 0 34px; color: rgba(255, 253, 247, 0.82); font-size: 17px; }
.cta-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--green-900); color: rgba(255, 253, 247, 0.78); }
.footer-main {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding: 72px 0 48px;
}
.footer-brand .brand-name .zh { font-size: 24px; }
.footer-brand p { margin-top: 18px; font-size: 14.5px; line-height: 1.9; color: rgba(255, 253, 247, 0.66); max-width: 300px; }
.footer-col h5 {
  color: var(--paper);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.14em;
  margin-bottom: 22px;
  position: relative;
  padding-bottom: 10px;
}
.footer-col h5::after { content: ""; position: absolute; left: 0; bottom: 0; width: 26px; height: 2px; background: var(--gold-500); }
.footer-col ul { display: grid; gap: 12px; }
.footer-col a, .footer-col li { font-size: 14.5px; color: rgba(255, 253, 247, 0.68); transition: color 0.25s ease; }
.footer-col a:hover { color: var(--gold-500); }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; }
.footer-contact svg { color: var(--gold-500); flex-shrink: 0; margin-top: 4px; }
.footer-bottom {
  border-top: 1px solid var(--line-light);
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 13.5px;
  color: rgba(255, 253, 247, 0.5);
  flex-wrap: wrap;
}

/* ---------- 内页横幅 ---------- */
.page-banner {
  position: relative;
  padding: 190px 0 110px;
  overflow: hidden;
  text-align: center;
}
.page-banner .bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}
.page-banner .mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(34, 54, 39, 0.72) 0%, rgba(34, 54, 39, 0.55) 100%);
}
.page-banner .container { position: relative; z-index: 2; }
.page-banner h1 {
  font-family: var(--font-serif);
  font-size: clamp(34px, 4.4vw, 52px);
  color: var(--paper);
  font-weight: 800;
  letter-spacing: 0.06em;
}
.breadcrumb { margin-top: 16px; color: rgba(255, 253, 247, 0.78); font-size: 14px; letter-spacing: 0.12em; display: flex; align-items: center; justify-content: center; gap: 10px; }
.breadcrumb a { color: var(--gold-500); }
.breadcrumb .sep { opacity: 0.6; }

/* ---------- 关于页 ---------- */
.about-story { position: relative; }
.story-grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 64px;
  align-items: center;
}
.story-media img { border-radius: var(--radius); box-shadow: var(--shadow-md); width: 100%; height: 480px; object-fit: cover; }
.story-body h3 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 2.8vw, 32px);
  color: var(--green-900);
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 20px;
}
.story-body p { color: var(--mute); margin-bottom: 15px; }
.story-body strong { color: var(--green-700); }

/* 历程 */
.timeline { position: relative; max-width: 900px; margin: 0 auto; padding: 10px 0; }
.timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, transparent, var(--gold-500) 8%, var(--gold-500) 92%, transparent);
  transform: translateX(-50%);
}
.tl-item {
  position: relative;
  width: 50%;
  padding: 0 44px 52px;
}
.tl-item:nth-child(odd) { left: 0; text-align: right; }
.tl-item:nth-child(even) { left: 50%; text-align: left; }
.tl-item::after {
  content: "";
  position: absolute;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--gold-500);
  border: 4px solid var(--green-700);
  box-shadow: 0 0 0 4px var(--gold-100);
}
.tl-item:nth-child(odd)::after { right: -8px; }
.tl-item:nth-child(even)::after { left: -8px; }
.tl-year {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 800;
  color: var(--gold-600);
}
.tl-item h4 { margin-top: 6px; font-size: 18px; font-weight: 700; color: var(--green-900); }
.tl-item p { margin-top: 8px; font-size: 14.5px; color: var(--mute); }

/* 资质 */
.honor-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.honor-card {
  background: var(--paper);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  padding: 34px 22px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.honor-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.honor-card .seal {
  width: 74px;
  height: 74px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: var(--green-100);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green-700);
}
.honor-card h4 { font-size: 16.5px; color: var(--green-900); font-weight: 700; }
.honor-card p { margin-top: 6px; font-size: 13px; color: var(--mute); }

/* 基地相册 */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.gallery-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 3;
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.gallery-item:hover img { transform: scale(1.05); }
.gallery-item figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 40px 20px 16px;
  background: linear-gradient(to top, rgba(34, 54, 39, 0.85), transparent);
  color: var(--paper);
  font-size: 14.5px;
  letter-spacing: 0.1em;
}

/* ---------- 产品页 ---------- */
.filter-bar {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.filter-btn {
  padding: 10px 26px;
  border-radius: 999px;
  border: 1.5px solid var(--line);
  background: var(--paper);
  color: var(--mute);
  font-size: 15px;
  letter-spacing: 0.08em;
  transition: all 0.25s ease;
}
.filter-btn:hover { border-color: var(--gold-500); color: var(--gold-600); }
.filter-btn.active { background: var(--green-700); border-color: var(--green-700); color: var(--paper); }
.prod-grid--filter .prod-card { display: flex; }
.prod-grid--filter .prod-card.hidden { display: none; }

/* 工艺条 */
.process-strip {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--paper);
}
.process-step {
  padding: 30px 20px;
  text-align: center;
  position: relative;
}
.process-step + .process-step { border-left: 1px dashed var(--line); }
.process-step .step-no {
  width: 34px;
  height: 34px;
  margin: 0 auto 14px;
  border-radius: 50%;
  background: var(--green-700);
  color: var(--gold-500);
  font-family: var(--font-serif);
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}
.process-step h5 { font-size: 16px; color: var(--green-900); font-weight: 700; }
.process-step p { margin-top: 6px; font-size: 13px; color: var(--mute); }

/* ---------- 新闻页 ---------- */
.news-list { display: grid; gap: 28px; max-width: 960px; margin: 0 auto; }
.news-row {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 30px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.news-row:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.news-row .thumb { aspect-ratio: 4 / 3; overflow: hidden; }
.news-row .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.news-row:hover .thumb img { transform: scale(1.05); }
.news-row .body { padding: 26px 30px 26px 0; display: flex; flex-direction: column; justify-content: center; }
.news-row .meta { display: flex; align-items: center; gap: 18px; font-size: 13.5px; color: var(--gold-600); letter-spacing: 0.08em; }
.news-row .meta .date { display: inline-flex; align-items: center; gap: 7px; }
.news-row h3 { margin-top: 10px; font-size: 21px; font-weight: 700; color: var(--green-900); line-height: 1.5; }
.news-row p { margin-top: 10px; font-size: 14.5px; color: var(--mute); line-height: 1.8; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-row .more { margin-top: 16px; color: var(--green-700); font-weight: 700; font-size: 14.5px; display: inline-flex; align-items: center; gap: 8px; }

/* ---------- 新闻详情 ---------- */
.article-wrap { max-width: 860px; margin: 0 auto; }
.article-head { text-align: center; margin-bottom: 40px; }
.article-head .cat { color: var(--gold-600); font-size: 13.5px; letter-spacing: 0.25em; font-weight: 700; }
.article-head h1 {
  font-family: var(--font-serif);
  font-size: clamp(26px, 3.4vw, 38px);
  color: var(--green-900);
  line-height: 1.45;
  margin: 16px 0;
  font-weight: 700;
}
.article-head .meta {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 22px;
  color: var(--mute);
  font-size: 14px;
  flex-wrap: wrap;
}
.article-head .meta span { display: inline-flex; align-items: center; gap: 7px; }
.article-head .meta svg { color: var(--gold-600); }
.article-cover {
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 40px;
  box-shadow: var(--shadow-md);
}
.article-body { font-size: 16.5px; line-height: 2.05; color: #3D382C; }
.article-body p { margin-bottom: 22px; }
.article-body h2 {
  font-family: var(--font-serif);
  font-size: 24px;
  color: var(--green-900);
  margin: 40px 0 16px;
  padding-left: 16px;
  border-left: 4px solid var(--gold-500);
  font-weight: 700;
}
.article-body ul { margin: 0 0 22px 22px; list-style: disc; }
.article-body li { margin-bottom: 8px; }
.article-body .quote {
  background: var(--green-100);
  border-radius: var(--radius);
  padding: 22px 28px;
  margin: 28px 0;
  color: var(--green-800);
  font-size: 16px;
  position: relative;
}
.article-body .quote::before {
  content: "“";
  position: absolute;
  top: -8px;
  left: 16px;
  font-family: var(--font-serif);
  font-size: 56px;
  color: var(--gold-500);
}
.article-nav {
  margin-top: 56px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.article-nav a { font-size: 15px; color: var(--green-700); font-weight: 600; display: inline-flex; align-items: center; gap: 8px; }
.article-nav a:hover { color: var(--gold-600); }
.article-nav .next { margin-left: auto; }

/* ---------- 联系页 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 56px;
  align-items: start;
}
.contact-info { display: grid; gap: 20px; }
.contact-card {
  display: flex;
  gap: 18px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 28px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.contact-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.contact-card .icon {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
  border-radius: 14px;
  background: var(--green-100);
  color: var(--green-700);
  display: flex;
  align-items: center;
  justify-content: center;
}
.contact-card h4 { font-size: 16.5px; color: var(--green-900); font-weight: 700; }
.contact-card p { margin-top: 6px; color: var(--mute); font-size: 15px; }
.contact-card a { color: var(--green-700); font-weight: 600; }
.contact-aside { position: sticky; top: 110px; }
.contact-aside .map-card {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
}
.contact-aside .map-card img { width: 100%; height: 320px; object-fit: cover; }
.contact-aside .note {
  margin-top: 18px;
  background: var(--green-100);
  border-radius: var(--radius);
  padding: 20px 24px;
  font-size: 14.5px;
  color: var(--green-800);
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.contact-aside .note svg { color: var(--gold-600); flex-shrink: 0; margin-top: 3px; }

/* 合作流程 */
.flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.flow-card {
  background: var(--paper);
  border-radius: var(--radius);
  padding: 34px 26px;
  border: 1px solid var(--line);
  text-align: center;
  position: relative;
}
.flow-card .step {
  width: 40px;
  height: 40px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--green-700);
  color: var(--gold-500);
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.flow-card h4 { font-size: 17px; color: var(--green-900); font-weight: 700; }
.flow-card p { margin-top: 8px; font-size: 13.5px; color: var(--mute); }

/* ---------- 返回顶部 ---------- */
.to-top {
  position: fixed;
  right: 28px;
  bottom: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--green-700);
  color: var(--gold-500);
  border: none;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all 0.3s ease;
  z-index: 90;
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--green-800); }

/* ---------- 滚动显现 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero-bg { animation: none; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .honor-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .process-strip { grid-template-columns: repeat(3, 1fr); }
  .process-step:nth-child(4) { border-left: none; }
  .flow-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .main-nav {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(320px, 82vw);
    background: var(--green-900);
    padding: 100px 40px 40px;
    transform: translateX(100%);
    transition: transform 0.35s ease;
    box-shadow: -20px 0 60px rgba(0, 0, 0, 0.25);
  }
  .main-nav.open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; gap: 8px; }
  .main-nav a { display: block; padding: 14px 0; font-size: 17px; border-bottom: 1px solid var(--line-light); }
  .nav-toggle { display: flex; }
  .header-phone { display: none; }
  .about-grid { grid-template-columns: 1fr; gap: 52px; }
  .about-media .float-card { right: 8px; }
  .story-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-aside { position: static; }
  .news-row { grid-template-columns: 1fr; }
  .news-row .body { padding: 8px 24px 26px; }
  .timeline::before { left: 8px; }
  .tl-item { width: 100%; left: 0 !important; text-align: left !important; padding: 0 0 46px 42px; }
  .tl-item::after { left: 0 !important; right: auto !important; }
  .footer-main { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .section { padding: 64px 0; }
  .pledge-list { grid-template-columns: 1fr; }
  .pledge-item + .pledge-item { border-left: none; border-top: 1px solid rgba(217, 169, 60, 0.25); }
  .prod-grid, .adv-grid, .news-grid, .honor-grid, .gallery-grid, .flow-grid { grid-template-columns: 1fr; }
  .process-strip { grid-template-columns: 1fr 1fr; }
  .stat-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
  .stat-item .num { font-size: 38px; }
  .hero { min-height: 88vh; }
  .footer-main { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { justify-content: center; text-align: center; }
  .to-top { right: 16px; bottom: 16px; }
  .about-media .main-img { height: 340px; }
  .story-media img { height: 320px; }
}