/* =========================================================
   厚实农业 · 整站样式  v3 — 极简高级 / Minimal Premium
   主色：深军绿 #2D572C / 土棕 #8B6D44 / 暖米白 #F7F5EF
   强调：橘橙 #E67E22 / 文字：深炭黑 #1F1F1D
   无衬线大字号 · 大留白 · 军绿大色块 · 真实产品图撑场
   ========================================================= */

:root {
  --green: #2D572C;
  --green-dark: #1F3D1E;
  --brown: #8B6D44;
  --cream: #F7F5EF;
  --cream-2: #EFEAE0;
  --orange: #E67E22;
  --orange-dark: #C9691A;
  --ink: #1F1F1D;
  --ink-soft: #565049;
  --ink-faint: #8A8478;
  --line: #E5DFD3;
  --white: #FFFFFF;
  --sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  --serif: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  --radius: 4px;
  --container: 1200px;
  --header-h: 150px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  color: var(--ink);
  background-color: var(--cream);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
h1, h2, h3, h4 { font-family: var(--sans); font-weight: 800; color: var(--ink); letter-spacing: -0.01em; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ===================== 顶部工具条（轻量） ===================== */
.topbar { background: var(--cream); border-bottom: 1px solid var(--line); font-size: 13px; color: var(--ink-soft); }
.topbar .container { display: flex; justify-content: space-between; align-items: center; height: 38px; }
.topbar a { color: var(--ink-soft); }
.topbar a:hover { color: var(--green); }
.topbar .tb-left span { margin-right: 18px; }
.topbar .tb-left i { color: var(--orange); font-style: normal; margin-right: 6px; }

/* ===================== 主导航 ===================== */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(247, 245, 239, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header .container { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }
.logo { display: flex; align-items: center; }
.brand-logo { height: 64px; width: auto; display: block; }
.brand-logo-sm { height: 56px; width: auto; display: block; }
.footer-logo-text {
  font-size: 24px; font-weight: 800; color: #fff;
  font-family: var(--sans); letter-spacing: 0.08em; line-height: 1.2;
}

/* ---- 品牌符号 / 竖版 LOGO 展示段（about.html） ---- */
.brand-mark {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 0 8px;
}
.brand-mark .kicker {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 48px;
}
.brand-mark .kicker span {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.36em;
  color: var(--green);
}
.brand-mark .kicker .line {
  width: 56px;
  height: 1px;
  background: var(--green);
  display: inline-block;
  opacity: 0.4;
}
.brand-mark-img {
  display: block;
  width: 240px;
  max-width: 60vw;
  height: auto;
  margin: 0 auto;
}
.brand-mark .motto {
  margin: 40px 0 12px;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ink);
  line-height: 1.3;
}
.brand-mark .caption {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.24em;
  color: var(--ink-soft);
}

@media (max-width: 760px) {
  .brand-mark { padding-top: 16px; }
  .brand-mark .kicker { margin-bottom: 32px; }
  .brand-mark-img { width: 200px; }
  .brand-mark .motto { font-size: 22px; margin-top: 28px; }
  .brand-mark .caption { font-size: 12px; }
}
.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  padding: 10px 16px; font-size: 15px; font-weight: 600; color: var(--ink);
  position: relative; transition: .2s;
}
.nav a:hover { color: var(--green); }
.nav a.active { color: var(--green); }
.nav a.active::after { content: ""; position: absolute; left: 16px; right: 16px; bottom: 4px; height: 2px; background: var(--green); }
.header-cta { display: flex; align-items: center; gap: 14px; }
.hotline { display: flex; align-items: center; gap: 8px; color: var(--green); font-weight: 700; font-size: 15px; }
.hotline .lab { font-size: 11px; color: var(--ink-faint); font-weight: 500; display: block; line-height: 1.2; }
.hotline .num { color: var(--green); font-size: 18px; letter-spacing: .5px; font-weight: 800; }

.nav-toggle {
  display: none; width: 44px; height: 44px; border: 1px solid var(--line);
  border-radius: var(--radius); background: var(--cream); cursor: pointer; position: relative;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 11px; width: 22px; height: 2.5px; background: var(--green); border-radius: 2px; transition: .25s;
}
.nav-toggle span { top: 20.5px; }
.nav-toggle span::before { top: -7px; }
.nav-toggle span::after { top: 7px; }
.nav-toggle.open span { background: transparent; }
.nav-toggle.open span::before { top: 0; transform: rotate(45deg); }
.nav-toggle.open span::after { top: 0; transform: rotate(-45deg); }

/* ===================== 按钮 ===================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 30px; border-radius: var(--radius); font-weight: 700; font-size: 15px;
  cursor: pointer; border: 1.5px solid transparent; transition: .18s; line-height: 1;
}
.btn-primary { background: var(--green); color: #fff; }
.btn-primary:hover { background: var(--green-dark); }
.btn-ghost { background: transparent; color: var(--green); border-color: var(--green); }
.btn-ghost:hover { background: var(--green); color: #fff; }
.btn-light { background: #fff; color: var(--green); border-color: var(--line); }
.btn-light:hover { border-color: var(--green); }

/* ===================== 分区标题 ===================== */
.section { padding: 96px 0; }
.section.alt { background: var(--cream-2); }

.section-head { max-width: 760px; margin: 0 0 56px; text-align: left; }
.section-head .eyebrow {
  display: inline-block; color: var(--green); font-weight: 800; font-size: 13px;
  letter-spacing: 0.18em; text-transform: uppercase; margin-bottom: 16px;
}
.section-head h2 { font-size: 33px; line-height: 1.18; font-weight: 800; letter-spacing: -0.01em; }
.section-head p { color: var(--ink-soft); margin-top: 14px; font-size: 16px; max-width: 620px; }

.bar { display: block; width: 44px; height: 3px; background: var(--green); margin-top: 14px; }

/* ===================== 极简 Hero ===================== */
.hero { padding: 88px 0 96px; }
.hero .container { display: flex; align-items: center; gap: 64px; }
.hero-text { flex: 1.2; }
.hero .kicker {
  display: inline-block; color: var(--green); font-weight: 800; font-size: 13px;
  letter-spacing: 0.18em; text-transform: uppercase; margin-bottom: 22px;
}
.hero h1 { font-size: 56px; line-height: 1.1; font-weight: 800; letter-spacing: -0.02em; color: var(--ink); margin-bottom: 22px; }
.hero h1 .accent { color: var(--green); }
.hero p.lead { font-size: 18px; color: var(--ink-soft); max-width: 520px; margin-bottom: 34px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-media { flex: 1; }
.hero-media img { width: 100%; height: auto; max-height: 540px; object-fit: contain; border-radius: var(--radius); display: block; background: var(--cream-2); }
.hero-stats { display: flex; gap: 44px; margin-top: 50px; }
.hero-stats .st b { display: block; font-size: 30px; font-weight: 800; color: var(--green); line-height: 1; letter-spacing: -0.01em; }
.hero-stats .st span { font-size: 13px; color: var(--ink-soft); margin-top: 6px; display: block; }

/* ===================== 军绿大色块 ===================== */
.greenband { background: var(--green); color: #fff; padding: 84px 0; }
.greenband .inner { max-width: 900px; }
.greenband .eyebrow { display: block; color: var(--orange); font-weight: 800; font-size: 13px; letter-spacing: 0.18em; text-transform: uppercase; margin-bottom: 18px; }
.greenband h2 { color: #fff; font-size: 38px; font-weight: 800; line-height: 1.22; letter-spacing: -0.01em; margin-bottom: 20px; }
.greenband p { color: #DDE6D6; font-size: 17px; max-width: 660px; }
.greenband .gb-stats { display: flex; gap: 56px; margin-top: 48px; border-top: 1px solid rgba(255,255,255,0.18); padding-top: 32px; }
.greenband .gb-stats .gbs b { display: block; font-size: 32px; font-weight: 800; color: #fff; line-height: 1; }
.greenband .gb-stats .gbs span { font-size: 13.5px; color: #B9C7AE; margin-top: 6px; display: block; }

/* ===================== 核心优势 → 顶部细线卡 ===================== */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.feature-card { border-top: 2px solid var(--green); padding: 26px 0; transition: .2s; }
.feature-card .ic { display: none; }
.feature-card h3 { font-size: 19px; font-weight: 700; color: var(--ink); margin-bottom: 9px; }
.feature-card p { font-size: 14.5px; color: var(--ink-soft); }

/* ===================== 产品卡（图片主导·极简） ===================== */
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; }
.prod-card { display: flex; flex-direction: column; background: transparent; transition: .25s; }
a.prod-card { color: inherit; }
.prod-card .ph { overflow: hidden; background: var(--cream-2); border-radius: var(--radius); }
.prod-card .ph img { width: 100%; height: 240px; object-fit: cover; transition: .45s; display: block; }
.prod-card:hover .ph img { transform: scale(1.04); }
.prod-card .pb { padding: 18px 2px 0; }
.prod-card .pb .series { font-size: 12px; font-weight: 700; color: var(--orange); letter-spacing: 0.05em; margin-bottom: 6px; display: block; }
.prod-card .pb h3 { font-size: 19px; font-weight: 700; color: var(--ink); line-height: 1.35; }
.prod-card .pb .meta { font-size: 13.5px; color: var(--ink-soft); margin-top: 6px; }

/* 系列分隔行 */
.series-band { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 24px 0; margin-bottom: 38px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.series-band h3 { font-size: 20px; font-weight: 700; color: var(--ink); }
.series-band p { color: var(--ink-soft); font-size: 14.5px; }

/* ===================== 田间实效（极简三栏） ===================== */
.effect-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; }
.effect-item { border-top: 2px solid var(--green); padding-top: 22px; }
.effect-item h3 { font-size: 20px; font-weight: 700; color: var(--ink); margin-bottom: 10px; }
.effect-item p { font-size: 14.5px; color: var(--ink-soft); }
.effect-quote { font-size: 22px; font-weight: 700; color: var(--green); line-height: 1.5; max-width: 760px; margin-bottom: 8px; }
.section-head p.effect-quote { font-size: 22px; font-weight: 700; color: var(--green); line-height: 1.5; max-width: 760px; margin-top: 18px; }
.effect-quote .cite { display: block; margin-top: 16px; font-size: 14px; font-weight: 500; color: var(--ink-soft); }

/* ===================== 首页品牌落款（footer 上方） ===================== */
.brandmark {
  background: var(--cream-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 56px 0;
}
.brandmark .container {
  display: flex;
  align-items: center;
  gap: 56px;
}
.brandmark-logo {
  flex: 0 0 auto;
  width: 280px;
  max-width: 36vw;
  height: auto;
  display: block;
}
.brandmark-text { flex: 1 1 auto; min-width: 0; }
.brandmark-motto {
  margin: 0 0 14px;
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.005em;
  color: var(--ink);
  line-height: 1.3;
  font-family: var(--sans);
}
.brandmark-cap {
  margin: 0;
  font-size: 14px;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
  line-height: 1.6;
}

@media (max-width: 760px) {
  .brandmark { padding: 36px 0; }
  .brandmark .container { flex-direction: column; align-items: flex-start; gap: 24px; }
  .brandmark-logo { width: 200px; max-width: 60vw; }
  .brandmark-motto { font-size: 22px; }
  .brandmark-cap { font-size: 13px; }
}

/* ===================== 农技资讯（左图右文列表） ===================== */
.news-grid { display: flex; flex-direction: column; gap: 0; }
.news-card { border-bottom: 1px solid var(--line); padding: 0; }
.news-card-link { display: flex; align-items: flex-start; gap: 18px; padding: 22px 0; color: inherit; transition: background .2s, padding-left .2s; }
.news-card-link:hover { padding-left: 10px; background: var(--cream-2); }
.news-thumb {
  display: flex; align-items: center; justify-content: center;
  flex: 0 0 64px; width: 64px; height: 64px;
  background: var(--cream-2); border: 1px solid var(--line); border-radius: 12px;
  color: #8B6D44;
}
.news-thumb svg { width: 30px; height: 30px; }
.news-card:hover .news-thumb { background: #fff; border-color: var(--green); color: var(--green); }
.news-body { flex: 1 1 auto; min-width: 0; }
.news-body .date { font-size: 12.5px; color: var(--orange); font-weight: 800; letter-spacing: 0.08em; margin-bottom: 6px; }
.news-body h3 { font-size: 18px; font-weight: 700; color: var(--ink); line-height: 1.4; margin-bottom: 6px; font-family: var(--sans); }
.news-body p { font-size: 14.5px; color: var(--ink-soft); line-height: 1.6; max-width: 760px; margin: 0; }
.news-go { flex: 0 0 auto; align-self: center; color: var(--green); font-weight: 700; font-size: 14px; white-space: nowrap; }
.news-card-link:hover .news-go { text-decoration: underline; }
.news-back { margin-top: 26px; }

/* ===================== 厂区实景图集 ===================== */
.factory-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 22px 0 6px;
}
.factory-gallery figure { margin: 0; }
.factory-gallery img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid var(--line);
  display: block;
  transition: transform .25s;
}
.factory-gallery img:hover { transform: scale(1.02); }
.factory-gallery figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.5;
  text-align: center;
}
.factory-gallery h4 {
  grid-column: 1 / -1;
  font-size: 16px;
  font-weight: 700;
  color: var(--green);
  margin: 0 0 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.factory-gallery h4::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 16px;
  background: var(--green);
  border-radius: 2px;
}
@media (max-width: 860px) {
  .factory-gallery { grid-template-columns: repeat(2, 1fr); }
  .factory-gallery img { height: 140px; }
}
@media (max-width: 480px) {
  .factory-gallery { grid-template-columns: 1fr; }
  .factory-gallery img { height: 200px; }
}

/* ===================== 农技资讯（图文详情块） ===================== */
.news-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 36px;
  align-items: start;
  margin: 36px 0 44px;
  padding: 28px 28px 32px;
  background: var(--cream-2);
  border: 1px solid var(--line);
  border-left: 5px solid var(--green);
  border-radius: 14px;
}
.news-feature-media { display: flex; flex-direction: column; gap: 10px; }
.news-feature-media img {
  width: 100%; height: auto; display: block;
  border-radius: 10px; object-fit: cover;
  box-shadow: 0 8px 24px rgba(0,0,0,.08);
}
.news-feature-cap {
  font-size: 12.5px; color: var(--ink-soft); line-height: 1.5;
  text-align: center; letter-spacing: 0.02em;
}
/* 无实拍图的主题色块（news2~9 用） */
.news-feature-media.theme-2,
.news-feature-media.theme-3,
.news-feature-media.theme-4,
.news-feature-media.theme-5,
.news-feature-media.theme-6,
.news-feature-media.theme-7,
.news-feature-media.theme-8,
.news-feature-media.theme-9 {
  height: 300px; border-radius: 10px; display: flex;
  align-items: center; justify-content: center; text-align: center;
  box-shadow: 0 8px 24px rgba(0,0,0,.08); padding: 20px;
}
.news-feature-media.theme-2 { background: linear-gradient(135deg,#3E6B3A,#5C8A4E); }
.news-feature-media.theme-3 { background: linear-gradient(135deg,#8B6D44,#B8915E); }
.news-feature-media.theme-4 { background: linear-gradient(135deg,#2D572C,#4E7E3F); }
.news-feature-media.theme-5 { background: linear-gradient(135deg,#C0622E,#E08A4A); }
.news-feature-media.theme-6 { background: linear-gradient(135deg,#356859,#5A9E85); }
.news-feature-media.theme-7 { background: linear-gradient(135deg,#B5523F,#D67A5E); }
.news-feature-media.theme-8 { background: linear-gradient(135deg,#44566B,#6E8499); }
.news-feature-media.theme-9 { background: linear-gradient(135deg,#5A4B2E,#8A7142); }
.news-feature-media.theme-2 .news-feature-cap,
.news-feature-media.theme-3 .news-feature-cap,
.news-feature-media.theme-4 .news-feature-cap,
.news-feature-media.theme-5 .news-feature-cap,
.news-feature-media.theme-6 .news-feature-cap,
.news-feature-media.theme-7 .news-feature-cap,
.news-feature-media.theme-8 .news-feature-cap,
.news-feature-media.theme-9 .news-feature-cap {
  color: #fff; font-size: 17px; font-weight: 700; letter-spacing: 0.04em;
}
.news-feature-body .date {
  font-size: 12.5px; color: var(--orange); font-weight: 800;
  letter-spacing: 0.08em; margin-bottom: 8px;
}
.news-feature-body h2 {
  font-size: 26px; font-weight: 800; color: var(--ink);
  line-height: 1.35; margin-bottom: 14px; font-family: var(--sans);
}
.news-feature-body h3 {
  font-size: 17px; font-weight: 700; color: var(--green);
  line-height: 1.4; margin: 22px 0 10px; font-family: var(--sans);
}
.news-feature-body p {
  font-size: 15px; color: var(--ink-soft); line-height: 1.85; margin-bottom: 12px;
}
.news-feature-body p.lead { font-size: 16px; color: var(--ink); }
.news-feature-body ul, .news-feature-body ol { padding-left: 22px; margin: 8px 0 14px; }
.news-feature-body li { font-size: 14.5px; color: var(--ink-soft); line-height: 1.85; margin-bottom: 6px; }
.news-feature-body strong { color: var(--ink); }
.news-feature-body .note {
  background: #fff; border: 1px dashed var(--line);
  border-radius: 8px; padding: 14px 16px; font-size: 13.5px;
  color: var(--ink-soft); margin-top: 18px;
}
@media (max-width: 760px) {
  .news-feature { grid-template-columns: 1fr; gap: 22px; padding: 22px 18px 24px; }
  .news-feature-body h2 { font-size: 22px; }
  .news-feature-body h3 { font-size: 16px; }
  .news-feature-body p, .news-feature-body p.lead { font-size: 14.5px; }
  .news-feature-body li { font-size: 14px; }
}

@media (max-width: 760px) {
  .news-card-link { gap: 12px; padding: 18px 0; }
  .news-thumb { flex: 0 0 52px; width: 52px; height: 52px; border-radius: 10px; }
  .news-thumb svg { width: 24px; height: 24px; }
  .news-body h3 { font-size: 16px; }
  .news-body p { font-size: 13.5px; }
}

/* ===================== CTA（浅底面板） ===================== */
.cta { background: var(--cream-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 56px 48px; text-align: center; }
.cta h2 { font-size: 30px; font-weight: 800; color: var(--ink); margin-bottom: 14px; }
.cta p { color: var(--ink-soft); margin-bottom: 28px; font-size: 16px; }
.cta .hero-actions { justify-content: center; }

/* ===================== 关于页 ===================== */
.crumbs { background: transparent; font-size: 14px; color: var(--ink-soft); padding: 20px 0; border-bottom: 1px solid var(--line); }
.crumbs a:hover { color: var(--green); }
.page-title { padding: 60px 0 52px; }
.page-title h1 { font-size: 40px; font-weight: 800; letter-spacing: -0.01em; color: var(--ink); }
.page-title p { color: var(--ink-soft); margin-top: 10px; font-size: 16px; }

.about-intro { display: flex; gap: 52px; align-items: center; }
.about-intro .txt { flex: 1.3; }
.about-intro .txt h2 { font-size: 28px; font-weight: 800; color: var(--ink); margin-bottom: 18px; }
.about-intro .txt p { color: var(--ink-soft); margin-bottom: 14px; }
.about-intro .pic {
  flex: 1; background: var(--cream-2); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; line-height: 0;
}
.about-intro .pic svg { width: 100%; height: auto; display: block; }
.about-intro .pic .about-intro-img { width: 100%; height: auto; display: block; object-fit: cover; }
.about-intro .pic.timeline-pic { display: flex; align-items: center; justify-content: center; background: transparent; border: none; }
.about-intro .pic.timeline-pic svg { width: 120px; height: auto; opacity: 0.7; }

.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.value-card { border-top: 2px solid var(--green); padding: 26px 0; }
.value-card h3 { color: var(--ink); font-size: 19px; font-weight: 700; margin-bottom: 9px; }
.value-card p { font-size: 14.5px; color: var(--ink-soft); }

/* 时间轴 */
.timeline { position: relative; padding-left: 30px; border-left: 2px solid var(--line); margin-left: 4px; }
.timeline li { position: relative; padding-bottom: 26px; }
.timeline li::before {
  content: ""; position: absolute; left: -37px; top: 5px;
  width: 13px; height: 13px; background: var(--green); border: 3px solid var(--cream); border-radius: 50%;
}
.timeline .yr { font-weight: 800; color: var(--green); font-size: 17px; }
.timeline .ev { color: var(--ink-soft); font-size: 14.5px; }

/* ===================== 产品详情（catalog 内展开） ===================== */
.prod-detail { display: flex; gap: 28px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; margin-bottom: 22px; }
.prod-detail .pd-thumb { flex: 0 0 200px; height: 200px; background: var(--cream-2); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; }
.prod-detail .pd-info { flex: 1; }
.prod-detail .pd-info h3 { font-size: 20px; color: var(--ink); font-weight: 700; margin-bottom: 6px; }
.prod-detail .pd-info .meta { color: var(--brown); font-weight: 700; font-size: 14px; margin-bottom: 12px; }
.prod-detail .pd-info p { color: var(--ink-soft); font-size: 14.5px; margin-bottom: 10px; }
.spec-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 6px; }
.spec-list span { background: var(--cream-2); color: var(--ink); font-size: 13px; padding: 6px 12px; border-radius: var(--radius); border: 1px solid var(--line); }

/* 分类筛选 */
.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 40px; }
.filter-bar button {
  border: 1px solid var(--line); background: #fff; color: var(--ink-soft);
  padding: 9px 18px; border-radius: 999px; font-size: 14px; font-weight: 600; cursor: pointer; transition: .2s;
}
.filter-bar button:hover { border-color: var(--green); color: var(--green); }
.filter-bar button.active { background: var(--green); color: #fff; border-color: var(--green); }

/* ===================== 联系页 ===================== */
.contact-wrap { display: flex; gap: 36px; }
.contact-info { flex: 1; }
.contact-info .ci { display: flex; gap: 14px; align-items: flex-start; padding: 18px 0; border-bottom: 1px solid var(--line); }
.contact-info .ci .ic { width: 42px; height: 42px; flex: 0 0 42px; background: var(--cream-2); border: 1px solid var(--line); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; }
.contact-info .ci .ic svg { width: 22px; height: 22px; }
.contact-info .ci h4 { font-size: 15px; color: var(--ink); margin-bottom: 3px; font-family: var(--sans); font-weight: 700; }
.contact-info .ci p { font-size: 14.5px; color: var(--ink-soft); }
.contact-form { flex: 1; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; }
.contact-form h3 { font-size: 20px; color: var(--ink); font-weight: 700; margin-bottom: 18px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; color: var(--ink); }
.field input, .field textarea { width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--radius); font-size: 15px; font-family: inherit; background: var(--cream); color: var(--ink); transition: .2s; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--green); background: #fff; }
.field textarea { resize: vertical; min-height: 110px; }
.map-box { margin-top: 30px; height: 260px; background: var(--cream-2); border: 1px solid var(--line); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; color: var(--brown); text-align: center; }

/* ===================== 页脚（军绿大色块收尾） ===================== */
.footer { background: var(--green); color: #DDE6D6; padding: 64px 0 0; margin-top: 0; }
.footer .f-top { display: grid; grid-template-columns: 1.8fr 1fr 1fr 1.4fr; gap: 36px; padding-bottom: 40px; }
.footer .f-brand .logo { margin-bottom: 16px; }
.footer .f-brand p { font-size: 14px; color: #C3D0B8; max-width: 320px; }
.footer h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 16px; letter-spacing: 0.02em; }
.footer .f-links a { display: block; font-size: 14px; color: #DDE6D6; padding: 5px 0; }
.footer .f-links a:hover { color: var(--orange); }
.footer .f-contact p { font-size: 14px; margin-bottom: 8px; }
.footer .f-contact .num { color: #fff; font-weight: 800; font-size: 18px; }
.footer .f-bottom { border-top: 1px solid rgba(255,255,255,0.15); padding: 20px 0; text-align: center; font-size: 13px; color: #A9BBA0; }
.footer .f-bottom a { color: #A9BBA0; }
.footer .f-bottom a:hover { color: var(--orange); }

/* ===================== 返回顶部 ===================== */
.totop { position: fixed; right: 22px; bottom: 22px; width: 46px; height: 46px; border-radius: 50%; background: var(--orange); color: #fff; display: flex; align-items: center; justify-content: center; cursor: pointer; opacity: 0; visibility: hidden; transition: .25s; z-index: 60; border: none; }
.totop.show { opacity: 1; visibility: visible; }
.totop:hover { background: var(--orange-dark); }

/* ===================== 响应式 ===================== */
@media (max-width: 980px) {
  .hero h1 { font-size: 44px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); gap: 28px 32px; }
  .prod-grid, .effect-grid { grid-template-columns: repeat(2, 1fr); }
  .value-grid { grid-template-columns: 1fr; }
  .pcard-grid { grid-template-columns: repeat(3, 1fr); }
  .about-intro { flex-direction: column; }
  .contact-wrap { flex-direction: column; }
  .prod-hero { grid-template-columns: 1fr; gap: 28px; }
  .footer .f-top { grid-template-columns: 1fr 1fr; }
  .section { padding: 72px 0; }
  .section-head h2 { font-size: 28px; }
  .greenband h2 { font-size: 32px; }
  .greenband .gb-stats { gap: 36px; }
  .cta { padding: 44px 28px; }
}
@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .header-cta .hotline { display: none; }
  .nav { position: absolute; top: var(--header-h); left: 0; right: 0; background: var(--cream); flex-direction: column; align-items: stretch; gap: 0; padding: 8px 14px 16px; border-top: 1px solid var(--line); box-shadow: 0 8px 18px rgba(34,34,34,.08); display: none; }
  .nav.open { display: flex; }
  .nav a { padding: 13px 14px; }
  .nav a.active::after { display: none; }
  .hero .container { flex-direction: column; align-items: flex-start; gap: 40px; }
  .hero-media { width: 100%; }
  .hero h1 { font-size: 36px; }
  .hero-stats { gap: 28px; flex-wrap: wrap; }
  .feature-grid { grid-template-columns: 1fr; }
  .prod-grid, .effect-grid { grid-template-columns: repeat(2, 1fr); }
  .value-grid { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
  .section-head { margin-bottom: 40px; }
  .section-head h2 { font-size: 24px; }
  .greenband .gb-stats { flex-wrap: wrap; gap: 24px; }
  .footer .f-top { grid-template-columns: 1fr; gap: 26px; }
  .page-title h1 { font-size: 30px; }
  .about-intro .txt h2 { font-size: 24px; }
  .prod-gallery.single img { width: 100%; max-width: 100%; max-height: none; }
}
@media (max-width: 760px) {
  .prod-grid, .effect-grid, .pcard-grid { grid-template-columns: 1fr; }
  .plist { grid-template-columns: 1fr; }
  .plist-thumb { height: 440px; }
  .hero h1 { font-size: 30px; }
  .greenband h2 { font-size: 26px; }
  .cta h2 { font-size: 24px; }
}

/* ===================== 产品中心列表（四列网格卡片，products.html） ===================== */
.plist {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: 1fr; gap: 22px;
}
@media (min-width: 540px) { .plist { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 761px) { .plist { grid-template-columns: repeat(4, 1fr); } }
.prow { border-bottom: 0; }
.prow a {
  display: flex; flex-direction: column; height: 100%;
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  overflow: hidden; color: inherit;
  box-shadow: 0 2px 10px rgba(40,30,20,.04);
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.prow a:hover { transform: translateY(-3px); box-shadow: 0 10px 26px rgba(40,30,20,.12); border-color: var(--green); }
.plist-bar { display: block; height: 5px; width: 100%; border-radius: 0; }
.plist-bar.salida { background: var(--orange); }
.plist-bar.ding   { background: var(--brown); }
.plist-bar.ying   { background: var(--green); }
.plist-bar.houshi { background: #B5523F; }
/* 缩略图：固定竖版 350×560 比例（约 0.625），整图完整显示不裁切 */
.plist-thumb { display: block; width: 100%; aspect-ratio: 350/560; overflow: hidden; background: var(--cream-2); }
.plist-thumb img { width: 100%; height: 100%; object-fit: contain; display: block; transition: transform .4s; }
.prow a:hover .plist-thumb img { transform: scale(1.05); }
.plist-main { flex: 1 1 auto; min-width: 0; padding: 14px 16px 0; }
.plist-main .series-tag { margin-bottom: 10px; }
.plist-main h3 { font-size: 16.5px; font-weight: 700; color: var(--ink); line-height: 1.4; margin: 0 0 8px; font-family: var(--sans); }
.plist-main p { font-size: 13.5px; color: var(--ink-soft); line-height: 1.6; margin: 0; }
.plist-more {
  display: block; margin-top: 14px; padding: 12px 16px 16px;
  color: var(--green); font-weight: 700; font-size: 14px;
  border-top: 1px solid var(--line); width: 100%;
}
.prow a:hover .plist-more { text-decoration: underline; }

/* 系列标签（4 色） */
.series-tag { display: inline-block; font-size: 12px; font-weight: 700; color: #fff; padding: 4px 12px; border-radius: 999px; letter-spacing: .5px; }
.series-tag.salida { background: var(--orange); }
.series-tag.ding   { background: var(--brown); }
.series-tag.ying   { background: var(--green); }
.series-tag.houshi { background: #B5523F; }

/* ===================== 产品详情页（products/prod_*.html） ===================== */
.prod-hero { display: grid; grid-template-columns: 1fr; gap: 28px; }
@media (min-width: 761px) { .prod-hero { grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; } }
.prod-gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.prod-gallery.single { grid-template-columns: 1fr; justify-items: center; }
.prod-gallery img { width: 100%; border-radius: var(--radius); background: var(--cream-2); border: 1px solid var(--line); }
.prod-gallery.single img { width: auto; max-width: 420px; max-height: 460px; object-fit: contain; }
@media (max-width: 760px) {
  .prod-gallery.single img { width: 100%; max-width: 100%; max-height: 520px; }
}
.prod-summary .series-tag { margin-bottom: 14px; }
.prod-summary h1 { font-size: 30px; color: var(--ink); font-weight: 800; margin-bottom: 10px; line-height: 1.3; }
.prod-summary .meta { color: var(--brown); font-weight: 700; font-size: 15px; margin-bottom: 14px; }
.prod-summary .lead { color: var(--ink-soft); font-size: 15.5px; margin-bottom: 22px; }
.spec-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin-bottom: 24px; }
.spec-grid > div { background: #fff; padding: 14px 16px; }
.spec-grid span { display: block; font-size: 13px; color: var(--ink-soft); margin-bottom: 4px; }
.spec-grid b { font-size: 15px; color: var(--ink); font-weight: 700; }
.prod-body { margin-top: 12px; }
.prod-body h3 { font-size: 22px; color: var(--ink); font-weight: 800; margin-bottom: 16px; }
.feat-list { display: grid; gap: 14px; margin-bottom: 22px; }
.feat-list li { position: relative; padding-left: 26px; color: var(--ink-soft); font-size: 15px; line-height: 1.7; }
.feat-list li::before { content: ""; position: absolute; left: 4px; top: 11px; width: 10px; height: 10px; background: var(--orange); border-radius: 50%; }
.feat-list li b { color: var(--green); font-weight: 800; margin-right: 4px; }
.prod-body .lead-body { font-size: 15px; color: var(--ink-soft); line-height: 1.75; margin-bottom: 18px; }
.prod-body .note b { color: var(--brown); font-weight: 800; margin-right: 4px; }
.prod-body .tech-table { width: 100%; border-collapse: collapse; font-size: 13.5px; color: var(--ink-soft); margin-bottom: 26px; }
.prod-body .tech-table th, .prod-body .tech-table td { border: 1px solid var(--line); padding: 9px 14px; text-align: left; }
.prod-body .tech-table thead th { background: var(--cream-2); color: var(--ink); font-weight: 700; }
.prod-body .tech-table tbody tr:nth-child(even) { background: var(--paper); }
.note { background: var(--cream-2); border-left: 4px solid var(--brown); border-radius: var(--radius); padding: 12px 16px; font-size: 13.5px; color: var(--ink-soft); margin-bottom: 30px; }
.prod-nav { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; border-top: 1px solid var(--line); padding-top: 24px; }
.pn { font-size: 14px; font-weight: 600; color: var(--green); padding: 10px 16px; border: 1px solid var(--line); border-radius: var(--radius); transition: .2s; }
.pn:hover { background: var(--green); color: #fff; border-color: var(--green); }
.pn.back { background: var(--cream); }
.pn.disabled { color: #B7B2A6; cursor: default; }
.pn.disabled:hover { background: transparent; color: #B7B2A6; }