/* ============================================================
   祥盛环保 · 企业官网样式
   设计语言：高端现代 · 深绿主色 · 大留白 · 细节动效
   ============================================================ */
:root {
  --green-950: #06291d;
  --green-900: #0a3d2c;
  --green-800: #0d4d3a;
  --green-700: #0f6146;
  --green-600: #157a56;
  --green-500: #1e9c6d;
  --lime:      #7ab648;
  --lime-soft: #a8d47a;
  --ink:       #17251f;
  --ink-2:     #46564e;
  --ink-3:     #7a877f;
  --line:      #e4e9e5;
  --bg:        #ffffff;
  --bg-soft:   #f4f7f4;
  --radius:    18px;
  --shadow-lg: 0 24px 60px -24px rgba(10, 61, 44, .28);
  --shadow-md: 0 14px 40px -18px rgba(10, 61, 44, .22);
  --shadow-sm: 0 6px 18px -8px rgba(10, 61, 44, .16);
  --ease:      cubic-bezier(.22, .8, .3, 1);
  --font: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "Source Han Sans SC", system-ui, -apple-system, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.75;
  font-size: 16px;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s var(--ease); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
.container { width: min(1200px, 92%); margin: 0 auto; }

::selection { background: var(--green-700); color: #fff; }

/* ---------- 通用组件 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 34px; border-radius: 999px;
  font-size: 15px; font-weight: 600; letter-spacing: 2px;
  border: 1.5px solid transparent;
  transition: all .35s var(--ease);
}
.btn-primary { background: var(--green-700); color: #fff; box-shadow: 0 12px 30px -12px rgba(15, 97, 70, .55); }
.btn-primary:hover { background: var(--green-600); transform: translateY(-3px); box-shadow: 0 18px 36px -12px rgba(15, 97, 70, .6); }
.btn-ghost { border-color: rgba(255,255,255,.6); color: #fff; background: rgba(255,255,255,.06); backdrop-filter: blur(4px); }
.btn-ghost:hover { background: rgba(255,255,255,.16); border-color: #fff; transform: translateY(-3px); }
.btn-line { border-color: var(--green-700); color: var(--green-700); }
.btn-line:hover { background: var(--green-700); color: #fff; transform: translateY(-3px); }
.btn .arrow { transition: transform .3s var(--ease); }
.btn:hover .arrow { transform: translateX(5px); }
/* 内联图标默认尺寸（防止 SVG 默认 300x150 撑破布局） */
.btn svg { width: 17px; height: 17px; flex: none; }

.section { padding: 104px 0; }
.section-soft { background: var(--bg-soft); }
.sec-head { max-width: 640px; margin-bottom: 56px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.kicker {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 13px; font-weight: 700; letter-spacing: 6px;
  color: var(--green-600); margin-bottom: 14px;
}
.kicker::before { content: ""; width: 34px; height: 2px; background: var(--lime); }
.sec-head.center .kicker::after { content: ""; width: 34px; height: 2px; background: var(--lime); }
.sec-head h2 { font-size: clamp(26px, 3.4vw, 40px); line-height: 1.3; letter-spacing: 1px; }
.sec-head p { color: var(--ink-3); margin-top: 14px; }
.sec-head.split { display: flex; align-items: flex-end; justify-content: space-between; max-width: none; gap: 24px; flex-wrap: wrap; }
.more-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 600; color: var(--green-700); letter-spacing: 1px; white-space: nowrap;
}
.more-link svg { width: 15px; height: 15px; flex: none; transition: transform .3s var(--ease); }
.more-link:hover svg { transform: translateX(4px); }

/* 滚动进入动画 */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .12s; }
.reveal[data-delay="2"] { transition-delay: .24s; }
.reveal[data-delay="3"] { transition-delay: .36s; }

/* ============================================================
   顶部导航
   ============================================================ */
.site-header {
  position: fixed; inset: 0 0 auto; z-index: 100;
  transition: background .4s var(--ease), box-shadow .4s var(--ease), padding .4s var(--ease);
  padding: 18px 0;
}
.header-inner { display: flex; align-items: center; gap: 40px; }
.site-header.scrolled { background: rgba(255,255,255,.92); backdrop-filter: blur(14px); box-shadow: 0 8px 30px -18px rgba(10,61,44,.3); padding: 10px 0; }
.logo { display: flex; align-items: center; gap: 12px; color: #fff; transition: color .4s var(--ease); }
.site-header.scrolled .logo { color: var(--green-800); }
.logo-img {
  height: 46px; width: auto; flex: none;
  background: #fff; border-radius: 10px; padding: 3px;
  box-shadow: 0 4px 14px -6px rgba(0,0,0,.35);
  transition: height .4s var(--ease);
}
.site-header.scrolled .logo-img { height: 38px; }
.logo-text { display: flex; flex-direction: column; line-height: 1.25; min-width: 0; }
.logo-text strong { font-size: 21px; letter-spacing: 2px; white-space: nowrap; }
.logo-text small { font-size: 11px; letter-spacing: 3px; opacity: .75; white-space: nowrap; }
.main-nav { display: flex; gap: 4px; margin-left: auto; }
.main-nav a {
  position: relative; color: rgba(255,255,255,.85);
  padding: 10px 16px; font-size: 15.5px; font-weight: 500; letter-spacing: 2px;
  white-space: nowrap;
}
.site-header.scrolled .main-nav a { color: var(--ink-2); }
.main-nav a::after {
  content: ""; position: absolute; left: 16px; right: 16px; bottom: 4px; height: 2px;
  background: var(--lime); border-radius: 2px;
  transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease);
}
.main-nav a:hover::after, .main-nav a.active::after { transform: scaleX(1); }
.main-nav a.active { color: #fff; }
.site-header.scrolled .main-nav a.active { color: var(--green-700); }
.header-phone {
  display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; letter-spacing: 1px;
  transition: color .4s var(--ease); white-space: nowrap;
}
.site-header.scrolled .header-phone { color: var(--green-800); }
.header-phone svg { width: 19px; height: 19px; color: var(--lime); }
.site-header.scrolled .header-phone svg { color: var(--green-600); }
.nav-toggle { display: none; background: none; border: 0; width: 42px; height: 42px; flex-direction: column; justify-content: center; gap: 6px; align-items: center; margin-left: auto; }
.nav-toggle span { width: 24px; height: 2px; background: #fff; border-radius: 2px; transition: all .3s var(--ease); }
.site-header.scrolled .nav-toggle span { background: var(--green-900); }

/* ============================================================
   首页 Hero 轮播
   ============================================================ */
.hero { position: relative; height: 100svh; min-height: 620px; overflow: hidden; }
.hero-slide {
  position: absolute; inset: 0; opacity: 0; visibility: hidden;
  transition: opacity 1.2s var(--ease), visibility 1.2s;
  display: flex; align-items: center;
  color: #fff;
}
.hero-slide.active { opacity: 1; visibility: visible; }
.hero-slide::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(900px 520px at 82% 18%, rgba(122,182,72,.32), transparent 62%),
    radial-gradient(700px 500px at 12% 88%, rgba(30,156,109,.35), transparent 60%);
}
.hero-slide.theme-green { background: linear-gradient(128deg, #0b4632 0%, #0a3d2c 44%, #06291d 100%); }
.hero-slide.theme-deep  { background: linear-gradient(128deg, #0d4d3a 0%, #08301f 55%, #051f14 100%); }
.hero-slide.theme-blue  { background: linear-gradient(128deg, #0c4a44 0%, #0a3d3c 48%, #06221f 100%); }
.hero-slide > .hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: .34; }
.hero-slide .container { position: relative; z-index: 2; }
.hero-deco {
  position: absolute; z-index: 1; right: -120px; top: 50%; transform: translateY(-50%);
  width: 560px; height: 560px; opacity: .16; pointer-events: none;
}
.hero-content { max-width: 720px; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 13px; letter-spacing: 5px; color: var(--lime-soft);
  border: 1px solid rgba(168, 212, 122, .45); padding: 8px 20px; border-radius: 999px;
  margin-bottom: 30px; background: rgba(122,182,72,.08);
}
.hero-content h1 {
  font-size: clamp(34px, 5.4vw, 62px); line-height: 1.22; letter-spacing: 2px; font-weight: 700;
  margin-bottom: 26px;
}
.hero-content p { font-size: clamp(15px, 1.6vw, 18px); color: rgba(255,255,255,.82); max-width: 560px; margin-bottom: 42px; }
.hero-actions { display: flex; gap: 18px; flex-wrap: wrap; }
/* 入场动画 */
.hero-slide .hero-tag, .hero-slide h1, .hero-slide p, .hero-slide .hero-actions {
  opacity: 0; transform: translateY(30px);
  transition: opacity .9s var(--ease), transform .9s var(--ease);
}
.hero-slide.active .hero-tag { opacity: 1; transform: none; transition-delay: .25s; }
.hero-slide.active h1 { opacity: 1; transform: none; transition-delay: .4s; }
.hero-slide.active p { opacity: 1; transform: none; transition-delay: .55s; }
.hero-slide.active .hero-actions { opacity: 1; transform: none; transition-delay: .7s; }
.hero-dots { position: absolute; left: 50%; bottom: 42px; transform: translateX(-50%); display: flex; gap: 12px; z-index: 5; }
.hero-dots button { width: 34px; height: 4px; border: 0; border-radius: 4px; background: rgba(255,255,255,.28); transition: all .4s var(--ease); }
.hero-dots button.active { background: var(--lime); width: 54px; }
.hero-scroll {
  position: absolute; right: 46px; bottom: 40px; z-index: 5;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  color: rgba(255,255,255,.65); font-size: 11px; letter-spacing: 4px; writing-mode: vertical-rl;
}
.hero-scroll::after { content: ""; width: 1px; height: 52px; background: linear-gradient(rgba(255,255,255,.6), transparent); animation: scrollHint 2s var(--ease) infinite; }
@keyframes scrollHint { 0% { transform: scaleY(0); transform-origin: top; } 55% { transform: scaleY(1); transform-origin: top; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* ============================================================
   首页 · 关于
   ============================================================ */
.about-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 72px; align-items: center; }
.about-visual { position: relative; }
.about-visual .visual-card {
  aspect-ratio: 4 / 4.6; border-radius: var(--radius); overflow: hidden;
  background: linear-gradient(150deg, #0f6146, #06291d);
  position: relative; box-shadow: var(--shadow-lg);
  display: flex; align-items: center; justify-content: center;
}
.about-visual .visual-card img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.visual-card svg.leaf-art { width: 62%; color: rgba(168,212,122,.5); }
.about-badge {
  position: absolute; right: -26px; bottom: 44px;
  background: #fff; border-radius: 16px; box-shadow: var(--shadow-md);
  padding: 22px 30px; display: flex; align-items: center; gap: 16px;
}
.about-badge strong { font-size: 40px; font-weight: 800; color: var(--green-700); line-height: 1; }
.about-badge span { font-size: 13px; color: var(--ink-3); letter-spacing: 2px; }
.about-copy p { color: var(--ink-2); margin-bottom: 18px; text-align: justify; }
.about-copy .lead { font-size: 17px; color: var(--ink); font-weight: 500; }
.about-points { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 28px; margin: 26px 0 36px; }
.about-points li { display: flex; align-items: center; gap: 10px; font-size: 15px; color: var(--ink-2); }
.about-points svg { width: 19px; height: 19px; color: var(--green-600); flex: none; }

/* ============================================================
   首页 · 优势
   ============================================================ */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feature-card {
  background: #fff; border-radius: var(--radius); padding: 40px 30px;
  border: 1px solid var(--line);
  transition: transform .45s var(--ease), box-shadow .45s var(--ease), border-color .45s;
  position: relative; overflow: hidden;
}
.feature-card::after {
  content: ""; position: absolute; inset: auto 0 0 0; height: 3px;
  background: linear-gradient(90deg, var(--green-600), var(--lime));
  transform: scaleX(0); transform-origin: left; transition: transform .5s var(--ease);
}
.feature-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-md); border-color: transparent; }
.feature-card:hover::after { transform: scaleX(1); }
.feature-icon {
  width: 62px; height: 62px; border-radius: 16px;
  background: linear-gradient(140deg, rgba(21,122,86,.12), rgba(122,182,72,.18));
  color: var(--green-700); display: flex; align-items: center; justify-content: center;
  margin-bottom: 24px; transition: all .45s var(--ease);
}
.feature-card:hover .feature-icon { background: linear-gradient(140deg, var(--green-700), var(--green-600)); color: #fff; transform: rotate(-6deg) scale(1.05); }
.feature-icon svg { width: 30px; height: 30px; }
.feature-card h3 { font-size: 19px; letter-spacing: 1px; margin-bottom: 12px; }
.feature-card p { font-size: 14.5px; color: var(--ink-3); line-height: 1.85; }
.feature-no { position: absolute; top: 22px; right: 26px; font-size: 44px; font-weight: 800; color: var(--bg-soft); line-height: 1; transition: color .4s; }
.feature-card:hover .feature-no { color: rgba(122,182,72,.25); }

/* ============================================================
   首页 · 产品
   ============================================================ */
.cat-tabs { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-bottom: 52px; }
.cat-tabs button {
  padding: 11px 28px; border-radius: 999px; border: 1.5px solid var(--line);
  background: #fff; color: var(--ink-2); font-size: 14.5px; letter-spacing: 1px;
  transition: all .3s var(--ease);
}
.cat-tabs button:hover { border-color: var(--green-600); color: var(--green-700); }
.cat-tabs button.active { background: var(--green-800); border-color: var(--green-800); color: #fff; box-shadow: 0 10px 24px -10px rgba(13,77,58,.5); }
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.product-card {
  background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line);
  transition: transform .45s var(--ease), box-shadow .45s var(--ease), border-color .45s;
  display: flex; flex-direction: column;
}
.product-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-md); border-color: transparent; }
.product-thumb {
  aspect-ratio: 4 / 3; position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.product-thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.product-card:hover .product-thumb img { transform: scale(1.08); }
.thumb-art { width: 88px; height: 88px; color: rgba(255,255,255,.85); transition: transform .6s var(--ease); }
.product-card:hover .thumb-art { transform: scale(1.12) rotate(-4deg); }
.ph-wind  { background: linear-gradient(135deg, #12855c, #0a3d2c); }
.ph-flask { background: linear-gradient(135deg, #2e9e6b, #0d4d3a); }
.ph-water { background: linear-gradient(135deg, #159a8c, #0b4a44); }
.ph-gear  { background: linear-gradient(135deg, #4c9a3f, #1c4d14); }
.product-body { padding: 24px 26px 28px; display: flex; flex-direction: column; flex: 1; }
.product-body h3 { font-size: 17.5px; letter-spacing: .5px; margin-bottom: 10px; transition: color .3s; }
.product-card:hover .product-body h3 { color: var(--green-700); }
.product-body p { font-size: 14px; color: var(--ink-3); line-height: 1.8; flex: 1; }
.product-body .more-link { margin-top: 18px; font-size: 13px; }
.product-cat-tag {
  display: inline-block; font-size: 12px; color: var(--green-600); letter-spacing: 2px;
  margin-bottom: 10px;
}

/* ============================================================
   首页 · 新闻
   ============================================================ */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
  background: #fff; border-radius: var(--radius); border: 1px solid var(--line);
  padding: 34px 32px; display: flex; gap: 22px;
  transition: transform .45s var(--ease), box-shadow .45s var(--ease), border-color .45s;
  position: relative;
}
.news-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); border-color: transparent; }
.news-date { flex: none; text-align: center; padding-right: 22px; border-right: 1px solid var(--line); }
.news-date strong { display: block; font-size: 38px; font-weight: 800; color: var(--green-700); line-height: 1.1; }
.news-date span { font-size: 13px; color: var(--ink-3); letter-spacing: 2px; }
.news-info h3 { font-size: 17px; line-height: 1.55; margin-bottom: 10px; transition: color .3s; }
.news-card:hover .news-info h3 { color: var(--green-700); }
.news-info p { font-size: 13.5px; color: var(--ink-3); line-height: 1.8; }
.news-info .more-link { margin-top: 14px; font-size: 13px; }

/* ============================================================
   荣誉资质
   ============================================================ */
.honor-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.honor-card {
  background: #fff; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line);
  transition: transform .45s var(--ease), box-shadow .45s var(--ease), border-color .45s;
}
.honor-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-md); border-color: transparent; }
.honor-thumb {
  aspect-ratio: 4 / 3; position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(150deg, #f0f6f0, #dcebdd);
  color: var(--green-600);
}
.honor-thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.honor-card:hover .honor-thumb img { transform: scale(1.06); }
.honor-thumb .thumb-art { width: 84px; height: 84px; transition: transform .6s var(--ease); }
.honor-card:hover .thumb-art { transform: scale(1.1) rotate(-4deg); }
.honor-body { padding: 20px 24px 24px; text-align: center; }
.honor-body h3 { font-size: 16.5px; letter-spacing: .5px; transition: color .3s; }
.honor-card:hover .honor-body h3 { color: var(--green-700); }

/* ============================================================
   CTA 条带
   ============================================================ */
.cta-band {
  position: relative; color: #fff; text-align: center;
  padding: 88px 0; overflow: hidden;
  background: linear-gradient(128deg, #0d4d3a, #06291d);
}
.cta-band::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(700px 340px at 50% -10%, rgba(122,182,72,.28), transparent 65%);
}
.cta-band .container { position: relative; }
.cta-band h2 { font-size: clamp(24px, 3vw, 36px); letter-spacing: 2px; margin-bottom: 16px; }
.cta-band p { color: rgba(255,255,255,.75); margin-bottom: 38px; }
.cta-phone { display: inline-flex; align-items: center; gap: 14px; font-size: clamp(22px, 2.6vw, 32px); font-weight: 800; letter-spacing: 3px; color: var(--lime-soft); }
.cta-phone svg { width: 30px; height: 30px; }

/* ============================================================
   页面 Banner（子页）
   ============================================================ */
.page-hero {
  position: relative; color: #fff;
  padding: 170px 0 88px; overflow: hidden;
  background: linear-gradient(126deg, #0d4d3a 0%, #0a3d2c 52%, #06291d 100%);
}
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(760px 400px at 84% 8%, rgba(122,182,72,.25), transparent 62%);
}
.page-hero .container { position: relative; }
.page-hero h1 { font-size: clamp(30px, 4vw, 46px); letter-spacing: 3px; margin-bottom: 12px; }
.page-hero .sub { color: rgba(255,255,255,.72); letter-spacing: 2px; }
.breadcrumb { display: flex; gap: 8px; margin-top: 26px; font-size: 13.5px; color: rgba(255,255,255,.6); letter-spacing: 1px; }
.breadcrumb a:hover { color: var(--lime-soft); }
.breadcrumb .sep { opacity: .5; }

/* ---------- 子页 Banner 环保主题装饰 ---------- */
.hero-art { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.hero-art .art { position: absolute; color: var(--lime-soft); }
.art-orbit {
  width: 520px; height: 520px; right: -60px; top: 50%;
  transform: translateY(-46%); opacity: .28;
  animation: orbitSpin 60s linear infinite;
}
.art-orbit circle { transform-origin: 250px 250px; }
@keyframes orbitSpin { to { transform: translateY(-46%) rotate(360deg); } }
.art-leaf {
  width: 300px; height: 300px; right: 8%; top: 50%;
  transform: translateY(-50%); opacity: .4;
  animation: leafFloat 7s var(--ease) infinite;
}
@keyframes leafFloat {
  0%, 100% { transform: translateY(-50%) rotate(0deg); }
  50% { transform: translateY(calc(-50% - 16px)) rotate(2.5deg); }
}
.art-wind {
  width: 130px; right: 38%; top: 26%; opacity: .4;
  animation: windDrift 9s var(--ease) infinite;
}
@keyframes windDrift {
  0%, 100% { transform: translateX(0); opacity: .4; }
  50% { transform: translateX(26px); opacity: .7; }
}
.art-leaf-f1 {
  width: 54px; right: 33%; bottom: 18%; opacity: .4;
  animation: leafFloat 6s var(--ease) infinite reverse;
}
.art-leaf-f2 {
  width: 34px; right: 13%; top: 16%; opacity: .3;
  animation: leafFloat 8s var(--ease) infinite;
  animation-delay: 1.2s;
}
.art-bubbles {
  width: 70px; right: 4.5%; bottom: -12%; opacity: .4;
  animation: bubblesRise 10s var(--ease) infinite;
}
@keyframes bubblesRise {
  0%, 100% { transform: translateY(0); opacity: .4; }
  50% { transform: translateY(-22px); opacity: .65; }
}
@media (max-width: 900px) {
  .art-orbit { width: 380px; height: 380px; right: -120px; }
  .art-leaf { width: 210px; height: 210px; right: 2%; }
  .art-wind { right: 46%; top: 20%; }
}
@media (max-width: 620px) {
  .art-orbit, .art-bubbles { display: none; }
  .art-leaf { width: 160px; height: 160px; opacity: .3; }
  .art-wind { width: 100px; right: 40%; }
  .art-leaf-f1 { right: 8%; bottom: 10%; }
}

/* ============================================================
   列表 / 详情 / 表单
   ============================================================ */
.cat-pills { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 46px; }
.cat-pills a {
  padding: 10px 26px; border-radius: 999px; border: 1.5px solid var(--line);
  color: var(--ink-2); font-size: 14.5px; letter-spacing: 1px; background: #fff;
  transition: all .3s var(--ease);
}
.cat-pills a:hover { border-color: var(--green-600); color: var(--green-700); }
.cat-pills a.active { background: var(--green-800); border-color: var(--green-800); color: #fff; }

.news-list { display: flex; flex-direction: column; gap: 18px; max-width: 900px; }
.news-row {
  display: flex; gap: 28px; align-items: flex-start;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 36px; transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s;
}
.news-row:hover { transform: translateX(8px); box-shadow: var(--shadow-sm); border-color: rgba(122,182,72,.5); }
.news-row .news-date strong { font-size: 32px; }
.news-row h3 { font-size: 18px; margin-bottom: 8px; transition: color .3s; }
.news-row:hover h3 { color: var(--green-700); }
.news-row p { font-size: 14px; color: var(--ink-3); }
.news-row .meta { margin-top: 10px; font-size: 13px; color: var(--ink-3); display: flex; gap: 20px; }

.article { max-width: 860px; }
.article h1 { font-size: clamp(24px, 3vw, 34px); line-height: 1.4; margin-bottom: 18px; }
.article .article-meta { display: flex; gap: 24px; color: var(--ink-3); font-size: 13.5px; padding-bottom: 22px; border-bottom: 1px solid var(--line); margin-bottom: 34px; }
.article .article-body { font-size: 16px; color: var(--ink-2); line-height: 2; }
.article .article-body p { margin-bottom: 18px; text-align: justify; }
.article .article-body img { border-radius: 12px; margin: 10px 0 20px; }
.article-back { margin-top: 44px; }

.product-detail { display: grid; grid-template-columns: 460px 1fr; gap: 56px; align-items: start; }
.pd-visual {
  aspect-ratio: 4/3; border-radius: var(--radius); overflow: hidden; position: relative;
  display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-md);
}
.pd-visual img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.pd-info h1 { font-size: clamp(24px, 3vw, 32px); margin-bottom: 8px; }
.pd-info .product-cat-tag { margin-bottom: 16px; }
.pd-summary {
  background: var(--bg-soft); border-left: 3px solid var(--lime);
  padding: 18px 24px; border-radius: 0 12px 12px 0; margin: 22px 0 28px;
  color: var(--ink-2); font-size: 15px;
}
.pd-info .article-body { border-top: 1px solid var(--line); padding-top: 28px; }

/* 表单 */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 60px; align-items: start; }
.contact-info h2 { font-size: clamp(22px, 2.6vw, 30px); margin-bottom: 30px; }
.contact-item { display: flex; gap: 18px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.contact-item .ci-icon {
  width: 48px; height: 48px; border-radius: 14px; flex: none;
  background: linear-gradient(140deg, rgba(21,122,86,.12), rgba(122,182,72,.2));
  color: var(--green-700); display: flex; align-items: center; justify-content: center;
}
.contact-item .ci-icon svg { width: 23px; height: 23px; }
.contact-item h4 { font-size: 13.5px; color: var(--ink-3); letter-spacing: 2px; font-weight: 500; margin-bottom: 4px; }
.contact-item p { font-size: 16.5px; font-weight: 600; }
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 40px 42px; box-shadow: var(--shadow-sm); }
.form-card h3 { font-size: 20px; margin-bottom: 26px; letter-spacing: 1px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { display: flex; flex-direction: column; gap: 8px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: 13.5px; color: var(--ink-2); letter-spacing: 1px; }
.form-field label b { color: #d4483b; }
.form-field input, .form-field textarea {
  font-family: inherit; font-size: 15px; color: var(--ink);
  border: 1.5px solid var(--line); border-radius: 12px; padding: 13px 16px;
  background: var(--bg-soft); transition: all .3s var(--ease); outline: none; resize: vertical;
}
.form-field input:focus, .form-field textarea:focus { border-color: var(--green-600); background: #fff; box-shadow: 0 0 0 4px rgba(21,122,86,.1); }
.form-msg { margin-top: 16px; font-size: 14.5px; display: none; padding: 12px 18px; border-radius: 10px; }
.form-msg.ok { display: block; background: rgba(122,182,72,.14); color: var(--green-700); }
.form-msg.err { display: block; background: rgba(212,72,59,.1); color: #c0392b; }
.form-msg { margin-top: 18px; }
.form-card .btn { margin-top: 6px; }

/* ============================================================
   页脚
   ============================================================ */
.site-footer { background: var(--green-950); color: rgba(255,255,255,.72); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 48px; padding: 78px 0 60px; }
.footer-logo { color: #fff; font-size: 20px; letter-spacing: 2px; margin-bottom: 18px; font-weight: 600; }
.footer-note { font-size: 14px; line-height: 2; text-align: justify; }
.footer-slogan { margin-top: 20px; font-size: 13px; color: var(--lime-soft); letter-spacing: 2px; }
.footer-col h4 { color: #fff; font-size: 16px; letter-spacing: 3px; margin-bottom: 22px; position: relative; padding-bottom: 12px; }
.footer-col h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 26px; height: 2px; background: var(--lime); }
.footer-col a, .footer-col p { display: block; font-size: 14px; padding: 5px 0; color: rgba(255,255,255,.62); }
.footer-col a:hover { color: var(--lime-soft); transform: translateX(4px); transition: all .3s var(--ease); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 22px 0; }
.footer-bottom .container { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 13px; color: rgba(255,255,255,.42); }

/* 返回顶部 */
.back-top {
  position: fixed; right: 30px; bottom: 34px; z-index: 90;
  width: 48px; height: 48px; border-radius: 50%; border: 0;
  background: var(--green-800); color: #fff; box-shadow: var(--shadow-md);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transform: translateY(14px);
  transition: all .4s var(--ease);
}
.back-top svg { width: 22px; height: 22px; }
.back-top.show { opacity: 1; visibility: visible; transform: none; }
.back-top:hover { background: var(--green-600); transform: translateY(-4px); }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1320px) {
  .logo-text strong { font-size: 17px; letter-spacing: 1px; }
  .logo-text small { font-size: 10px; letter-spacing: 2px; }
  .main-nav a { padding: 10px 9px; font-size: 14px; letter-spacing: 1px; }
  .header-phone { font-size: 14px; }
  .header-inner { gap: 20px; }
}
@media (max-width: 1080px) {
  .feature-grid, .product-grid { grid-template-columns: repeat(2, 1fr); }
  .honor-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; gap: 56px; }
  .about-visual { max-width: 520px; }
  .product-detail { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .main-nav {
    position: fixed; inset: 0 0 auto auto; top: 0; right: 0;
    width: min(320px, 84vw); height: 100svh;
    background: var(--green-950);
    flex-direction: column; gap: 4px; padding: 110px 40px 40px;
    transform: translateX(100%); transition: transform .45s var(--ease);
    box-shadow: -20px 0 60px rgba(0,0,0,.3);
  }
  .main-nav.open { transform: none; }
  .main-nav a { color: rgba(255,255,255,.85) !important; font-size: 17px; padding: 15px 0; border-bottom: 1px solid rgba(255,255,255,.08); }
  .main-nav a::after { display: none; }
  .main-nav a.active { color: var(--lime-soft) !important; }
  .nav-toggle { display: flex; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
  .header-phone { display: none; }
  .news-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 44px; }
  .section { padding: 76px 0; }
}
@media (max-width: 620px) {
  .feature-grid, .product-grid { grid-template-columns: 1fr; }
  .honor-grid { grid-template-columns: 1fr; }
  .about-points { grid-template-columns: 1fr; }
  .about-badge { right: 10px; bottom: 20px; padding: 16px 20px; }
  .about-badge strong { font-size: 30px; }
  .news-row { flex-direction: column; gap: 14px; padding: 26px; }
  .news-date { border: 0; padding: 0; display: flex; align-items: baseline; gap: 8px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; padding: 56px 0 40px; }
  .form-grid { grid-template-columns: 1fr; }
  .form-card { padding: 30px 24px; }
  .hero-scroll { display: none; }
  .hero { min-height: 540px; }
  .sec-head.split { flex-direction: column; align-items: flex-start; }
  .back-top { right: 18px; bottom: 22px; }
}