@charset "utf-8";
/* ==========================================================
   小牛乱逛 · 企业官网  pro.xiaoniu.net.cn
   设计基调：简约 / 大气 / 留白 / 牧场自然色
   ========================================================== */

/* ---------- 设计变量 ---------- */
:root {
  --ink:        #14181A;
  --ink-2:      #3D4744;
  --muted:      #7C8784;
  --line:       #E7E2D8;
  --line-soft:  #F0ECE4;
  --cream:      #FBF8F3;
  --cream-2:    #F4EFE6;
  --white:      #FFFFFF;
  --green:      #1F4A3C;
  --green-2:    #2E6B54;
  --green-soft: #EAF0EC;
  --gold:       #B98B3E;
  --gold-soft:  #F4EBDA;

  --radius:     6px;
  --radius-lg:  14px;
  --shadow:     0 2px 20px rgba(20, 24, 26, .06);
  --shadow-lg:  0 18px 50px rgba(20, 24, 26, .10);

  --maxw:       1240px;
  --nav-h:      72px;

  --sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --serif: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", Georgia, serif;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-2);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
img, svg, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s var(--ease); }
h1, h2, h3, h4, h5 { font-family: var(--serif); color: var(--ink); margin: 0; font-weight: 600; line-height: 1.35; letter-spacing: .01em; }
p { margin: 0 0 1em; }
ul { margin: 0; padding: 0; list-style: none; }
button, input, textarea, select { font: inherit; color: inherit; }
::selection { background: var(--green); color: #fff; }

.container { width: min(100% - 48px, var(--maxw)); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* ---------- 通用排版组件 ---------- */
.eyebrow {
  font-size: 12px; letter-spacing: .28em; text-transform: uppercase;
  color: var(--gold); font-weight: 600; display: inline-flex; align-items: center; gap: 10px;
}
.eyebrow::before { content: ""; width: 28px; height: 1px; background: var(--gold); display: inline-block; }
.section { padding: 108px 0; }
.section--cream { background: var(--cream); }
.section--soft { background: var(--cream-2); }
.section-head { max-width: 760px; margin-bottom: 60px; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head h2 { font-size: clamp(28px, 3.4vw, 42px); margin: 18px 0 16px; }
.section-head p { color: var(--muted); font-size: 16.5px; margin: 0; }
.divider { width: 56px; height: 2px; background: var(--gold); margin: 22px 0 0; }
.center .divider { margin-inline: auto; }

.lead { font-size: 17.5px; color: var(--ink-2); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: 50px; padding: 0 30px; border-radius: var(--radius);
  font-size: 15px; font-weight: 500; letter-spacing: .04em;
  border: 1px solid transparent; cursor: pointer;
  transition: all .3s var(--ease);
}
.btn-primary { background: var(--green); color: #fff; }
.btn-primary:hover { background: var(--green-2); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(31,74,60,.24); }
.btn-ghost { border-color: rgba(255,255,255,.6); color: #fff; }
.btn-ghost:hover { background: #fff; color: var(--green); }
.btn-outline { border-color: var(--green); color: var(--green); }
.btn-outline:hover { background: var(--green); color: #fff; }
.btn .arrow { transition: transform .3s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- 顶部信息条 + 导航 ---------- */
.topbar { background: #2E6B54; color: rgba(255,255,255,.94); font-size: 13px; height: 40px; display: flex; align-items: center; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.topbar-links { display: flex; align-items: center; gap: 22px; }
.topbar a:hover { color: #fff; }

.site-header { position: fixed; inset: 0 0 auto 0; z-index: 100; transition: background .35s var(--ease), box-shadow .35s var(--ease); }
.site-header .nav-wrap { transition: background .35s var(--ease); }
.site-header.is-stuck { background: rgba(255,255,255,.94); backdrop-filter: saturate(1.4) blur(12px); box-shadow: 0 1px 0 var(--line), 0 8px 30px rgba(20,24,26,.05); }
.site-header.is-stuck .brand-sub,
.site-header.is-stuck .nav-links a { color: var(--ink-2); }
.site-header.is-stuck .brand-mark { color: var(--ink); }
.site-header.is-stuck .nav-links a:hover,
.site-header.is-stuck .nav-links a.active { color: var(--green); }

.nav { height: var(--nav-h); display: flex; align-items: center; gap: 40px; }
.brand { display: flex; align-items: center; gap: 12px; margin-right: auto; }
.brand svg { width: 40px; height: 40px; flex: none; }
.brand-logo { width: 40px; height: 40px; flex: none; object-fit: contain; border-radius: 50%; }
.brand-logo--footer { background: #fff; padding: 4px; box-sizing: border-box; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-mark { font-family: var(--serif); font-size: 21px; font-weight: 700; letter-spacing: .06em; color: var(--ink); }
.brand-sub { font-size: 10.5px; letter-spacing: .22em; color: var(--muted); text-transform: uppercase; }

.nav-links { display: flex; align-items: center; gap: 38px; }
.nav-links a { position: relative; font-size: 15.5px; color: var(--ink-2); padding: 6px 0; }
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1.5px; width: 0; background: var(--gold);
  transition: width .35s var(--ease);
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-links a:hover, .nav-links a.active { color: var(--green); }

.nav-toggle { display: none; width: 44px; height: 44px; border: 0; background: transparent; cursor: pointer; padding: 10px; }
.nav-toggle span { display: block; height: 1.5px; background: var(--ink); margin: 5px 0; transition: all .3s var(--ease); }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* 首页导航透明态（覆盖在 Hero 上） */
body.home .site-header:not(.is-stuck) .brand-mark { color: #fff; }
body.home .site-header:not(.is-stuck) .brand-sub { color: rgba(255,255,255,.82); }
body.home .site-header:not(.is-stuck) .nav-links a { color: rgba(255,255,255,.95); }
body.home .site-header:not(.is-stuck) .nav-links a:hover,
body.home .site-header:not(.is-stuck) .nav-links a.active { color: #fff; }
body.home .site-header:not(.is-stuck) .nav-toggle span { background: #fff; }
body.home .site-header:not(.is-stuck) .topbar { background: rgba(20,40,33,.35); }

/* ---------- 页面头部（内页） ---------- */
.page-hero {
  position: relative; padding: calc(var(--nav-h) + 96px) 0 88px;
  background: linear-gradient(120deg, #2A5F4C 0%, #33755C 55%, #3E8568 100%);
  color: #fff; overflow: hidden;
}
.page-hero::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(900px 400px at 82% 20%, rgba(185,139,62,.30), transparent 65%);
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { color: #fff; font-size: clamp(32px, 4.4vw, 52px); margin: 16px 0 18px; }
.page-hero p { color: rgba(255,255,255,.92); max-width: 640px; font-size: 17px; margin: 0; }
.page-hero .eyebrow { color: #E7C98A; }
.crumb { font-size: 13px; color: rgba(255,255,255,.8); display: flex; gap: 8px; align-items: center; }
.crumb a:hover { color: #fff; }

/* ---------- 首页 Hero ---------- */
.hero {
  position: relative; min-height: 100vh; display: flex; flex-direction: column; justify-content: center;
  color: #fff; overflow: hidden;
  /* 图片尚未上传时的兜底底色：保证白色文字始终有足够对比 */
  background: linear-gradient(120deg, #2A5F4C 0%, #33755C 55%, #3E8568 100%);
}
.hero-media { position: absolute; inset: 0; }
.hero-media .ph { position: absolute; inset: 0; background: transparent; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(105deg, rgba(13,32,26,.55) 0%, rgba(13,32,26,.42) 45%, rgba(13,32,26,.28) 100%); }
.hero-inner { position: relative; z-index: 3; padding: calc(var(--nav-h) + 64px) 0 0; width: 100%; }
.hero h1 { color: #fff; font-size: clamp(36px, 5.6vw, 68px); line-height: 1.22; margin: 22px 0 20px; text-shadow: 0 2px 18px rgba(10,26,21,.42); }
.hero h1 em { font-style: normal; color: #E7C98A; }
.hero .hero-desc { font-size: 18px; color: #fff; max-width: 560px; text-shadow: 0 2px 14px rgba(10,26,21,.5); }
.hero-tagline { display: flex; flex-wrap: wrap; gap: 14px 26px; margin: 30px 0 40px; font-size: 14.5px; color: rgba(255,255,255,.96); letter-spacing: .06em; text-shadow: 0 2px 12px rgba(10,26,21,.5); }
.hero-tagline span { display: inline-flex; align-items: center; gap: 10px; }
.hero-tagline span::before { content: ""; width: 5px; height: 5px; background: var(--gold); border-radius: 50%; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }

.hero-stats { position: relative; z-index: 3; margin-top: 72px; padding-bottom: 34px; border-top: 1px solid rgba(255,255,255,.18); }
.hero-stats .container { display: grid; grid-template-columns: repeat(4, 1fr); }
.hero-stats .stat { padding: 34px 0 40px; border-right: 1px solid rgba(255,255,255,.12); padding-right: 20px; }
.hero-stats .stat:last-child { border-right: 0; }
.hero-stats .stat:not(:first-child) { padding-left: 28px; }
.stat-num { font-family: var(--serif); font-size: 40px; font-weight: 700; color: #fff; line-height: 1.1; text-shadow: 0 2px 16px rgba(10,26,21,.45); }
.stat-num i { font-style: normal; font-size: 18px; margin-left: 6px; color: rgba(255,255,255,.92); }
.stat-label { font-size: 13.5px; color: rgba(255,255,255,.88); letter-spacing: .1em; margin-top: 8px; }

/* ---------- 图片占位（缺图时优雅降级） ---------- */
.ph { position: relative; margin: 0; overflow: hidden; background: var(--cream-2); }
.ph img { width: 100%; height: 100%; object-fit: cover; }
.ph.img-missing::before {
  content: ""; position: absolute; inset: 0;
  background:
    repeating-linear-gradient(45deg, rgba(31,74,60,.045) 0 12px, transparent 12px 24px),
    linear-gradient(135deg, #F6F2EA, #EDE7DA);
}
.ph.img-missing::after {
  content: attr(data-label) "\A" attr(data-size);
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 8px; white-space: pre; text-align: center;
  font-size: 13px; line-height: 1.7; color: var(--muted); letter-spacing: .04em; padding: 20px;
  border: 1px dashed rgba(31,74,60,.28); margin: 14px;
}
.ph.img-missing img { opacity: 0; }
.ratio-21-9 { aspect-ratio: 21 / 9; }
.ratio-16-9 { aspect-ratio: 16 / 9; }
.ratio-4-3  { aspect-ratio: 4 / 3; }
.ratio-1-1  { aspect-ratio: 1 / 1; }
.ratio-3-4  { aspect-ratio: 3 / 4; }

/* ---------- 业务板块卡片 ---------- */
.biz-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.biz-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s var(--ease);
}
.biz-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent; }
.biz-card .ph { aspect-ratio: 4 / 3; }
.biz-body { padding: 26px 26px 30px; }
.biz-body h3 { font-size: 21px; margin-bottom: 6px; }
.biz-en { font-size: 11.5px; letter-spacing: .2em; text-transform: uppercase; color: var(--gold); }
.biz-body p { color: var(--muted); font-size: 14.8px; margin: 12px 0 18px; }
.biz-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.biz-tags span { font-size: 12.5px; padding: 4px 11px; background: var(--green-soft); color: var(--green); border-radius: 999px; }
.biz-more { font-size: 14px; color: var(--green); display: inline-flex; align-items: center; gap: 8px; font-weight: 500; }
.biz-more:hover { gap: 14px; }

/* ---------- 关于摘要 ---------- */
.about-split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 76px; align-items: center; }
.about-split .ph { border-radius: var(--radius); aspect-ratio: 4/3; }
.about-split .ph.img-missing::after { margin: 14px; }
.about-facts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); margin: 34px 0 32px; border: 1px solid var(--line); }
.about-facts div { background: var(--white); padding: 22px 24px; }
.about-facts strong { display: block; font-family: var(--serif); font-size: 27px; color: var(--green); line-height: 1.2; }
.about-facts span { font-size: 13.5px; color: var(--muted); }

/* ---------- 品质承诺 ---------- */
.promise-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.promise { padding: 34px 28px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); }
.promise .num { font-family: var(--serif); font-size: 15px; color: var(--gold); letter-spacing: .16em; }
.promise h3 { font-size: 19px; margin: 14px 0 10px; }
.promise p { font-size: 14.6px; color: var(--muted); margin: 0; }

/* ---------- 荣誉 ---------- */
.honor-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.honor {
  padding: 30px 28px; border-radius: var(--radius); background: var(--white);
  border: 1px solid var(--line); border-left: 3px solid var(--gold);
}
.honor h4 { font-size: 17px; margin-bottom: 8px; }
.honor p { font-size: 13.8px; color: var(--muted); margin: 0; }

/* ---------- 时间轴 ---------- */
.timeline { position: relative; padding-left: 34px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 1px; background: var(--line); }
.tl-item { position: relative; padding-bottom: 42px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: ""; position: absolute; left: -34px; top: 9px; width: 15px; height: 15px; border-radius: 50%;
  background: var(--white); border: 2px solid var(--green);
}
.tl-year { font-family: var(--serif); font-size: 20px; color: var(--green); font-weight: 700; }
.tl-item h4 { font-size: 17px; margin: 6px 0 8px; }
.tl-item p { font-size: 14.8px; color: var(--muted); margin: 0; }

/* ---------- 产品页 ---------- */
.prod-block { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; padding: 76px 0; border-bottom: 1px solid var(--line); }
.prod-block:last-of-type { border-bottom: 0; }
.prod-block.reverse .prod-media { order: 2; }
.prod-media { border-radius: var(--radius); aspect-ratio: 1/1; }
.prod-body h3 { font-size: clamp(26px, 3vw, 34px); margin: 14px 0 6px; }
.prod-desc { color: var(--muted); font-size: 16px; margin: 16px 0 24px; }
.spec-table { width: 100%; border-collapse: collapse; margin-bottom: 26px; }
.spec-table th, .spec-table td { text-align: left; padding: 13px 0; border-bottom: 1px solid var(--line-soft); font-size: 14.8px; vertical-align: top; }
.spec-table th { width: 116px; color: var(--ink); font-weight: 500; font-family: var(--sans); }
.spec-table td { color: var(--muted); }
.check-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 24px; margin-bottom: 30px; }
.check-list li { font-size: 14.8px; color: var(--ink-2); display: flex; gap: 10px; align-items: flex-start; }
.check-list li::before { content: ""; width: 7px; height: 7px; margin-top: 11px; border-radius: 50%; background: var(--gold); flex: none; }

.cooper-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.cooper { padding: 32px 26px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); }
.cooper h4 { font-size: 18px; margin-bottom: 10px; }
.cooper p { font-size: 14.4px; color: var(--muted); margin: 0; }

/* ---------- CTA 条 ---------- */
.cta-band { background: linear-gradient(120deg, #2E6B54 0%, #3E8568 100%); color: #fff; padding: 76px 0; }
.cta-band .container { display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cta-band h2 { color: #fff; font-size: clamp(26px, 3vw, 36px); margin-bottom: 10px; }
.cta-band p { color: rgba(255,255,255,.76); margin: 0; }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 60px; align-items: start; }
.info-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-bottom: 56px; }
.info-card { padding: 30px 26px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); }
.info-card .ic-label { font-size: 12px; letter-spacing: .18em; color: var(--gold); text-transform: uppercase; }
.info-card h4 { font-size: 19px; margin: 12px 0 6px; }
.info-card p { font-size: 14.6px; color: var(--muted); margin: 0; }

.store-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.store { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.store .ph { aspect-ratio: 16/10; }
.store-body { padding: 24px 24px 28px; }
.store-body h4 { font-size: 17.5px; margin-bottom: 10px; }
.store-body p { font-size: 14.4px; color: var(--muted); margin: 0; }
.store-body .tag { display: inline-block; font-size: 12px; color: var(--green); background: var(--green-soft); padding: 3px 10px; border-radius: 999px; margin-bottom: 12px; }

.form-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 40px 38px; box-shadow: var(--shadow); }
.form-card h3 { font-size: 23px; margin-bottom: 6px; }
.form-card .form-note { font-size: 14px; color: var(--muted); margin-bottom: 26px; }
.field { margin-bottom: 20px; }
.field label { display: block; font-size: 13.5px; color: var(--ink); margin-bottom: 8px; }
.field label i { color: #C0563E; font-style: normal; margin-left: 3px; }
.field input, .field textarea, .field select {
  width: 100%; padding: 13px 15px; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--cream); font-size: 15px; transition: border-color .25s var(--ease), background .25s var(--ease);
}
.field input:focus, .field textarea:focus, .field select:focus { outline: 0; border-color: var(--green); background: #fff; }
.field textarea { min-height: 118px; resize: vertical; }
.field .err { display: none; font-size: 12.5px; color: #C0563E; margin-top: 6px; }
.field.has-err input, .field.has-err textarea { border-color: #C0563E; }
.field.has-err .err { display: block; }
.form-tip { font-size: 12.8px; color: var(--muted); margin: 14px 0 0; }
.form-success { display: none; padding: 16px 18px; background: var(--green-soft); color: var(--green); border-radius: var(--radius); font-size: 14.5px; margin-bottom: 20px; }
.form-success.show { display: block; }

.map-box { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); aspect-ratio: 16/9; }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q { width: 100%; background: none; border: 0; padding: 24px 0; text-align: left; font-size: 17px; color: var(--ink); cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 20px; font-family: var(--serif); }
.faq-q .ic { flex: none; width: 22px; height: 22px; position: relative; }
.faq-q .ic::before, .faq-q .ic::after { content: ""; position: absolute; background: var(--green); transition: transform .3s var(--ease); }
.faq-q .ic::before { left: 0; top: 10px; width: 22px; height: 1.5px; }
.faq-q .ic::after { left: 10px; top: 0; width: 1.5px; height: 22px; }
.faq-item.open .faq-q .ic::after { transform: rotate(90deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .4s var(--ease); }
.faq-a p { padding: 0 40px 24px 0; color: var(--muted); font-size: 15.2px; margin: 0; }

/* ---------- 发展史 / 文章页 ---------- */
.story-lead { max-width: 840px; }
.big-quote {
  font-family: var(--serif); font-size: clamp(25px, 3.5vw, 38px); line-height: 1.55;
  color: var(--ink); margin: 0 0 28px; position: relative; padding-left: 38px;
}
.big-quote::before {
  content: "\201C"; position: absolute; left: 0; top: -.18em;
  font-size: 76px; line-height: 1; color: var(--gold); font-family: Georgia, serif;
}
.story-lead p { font-size: 17px; color: var(--ink-2); }
.story-note { font-size: 14px; color: var(--muted); }

.quote-block {
  border-left: 3px solid var(--gold); background: var(--cream);
  padding: 24px 30px; margin: 30px 0; border-radius: 0 var(--radius) var(--radius) 0;
}
.quote-block p { font-family: var(--serif); font-size: 17.5px; color: var(--ink); line-height: 1.95; margin: 0; }
.quote-block cite { display: block; margin-top: 14px; font-size: 13.5px; color: var(--muted); font-style: normal; }

.fact-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 48px; }
.fact-strip div { background: var(--white); padding: 26px 24px; }
.fact-strip strong { display: block; font-family: var(--serif); font-size: 32px; color: var(--green); line-height: 1.2; }
.fact-strip span { font-size: 13.5px; color: var(--muted); }

.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.why-card { padding: 32px 28px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); }
.why-card .w-num { font-family: var(--serif); font-size: 14px; letter-spacing: .16em; color: var(--gold); }
.why-card h4 { font-size: 19px; margin: 14px 0 10px; }
.why-card p { font-size: 14.8px; color: var(--muted); margin: 0; }

.lineup { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.lineup span { font-size: 14.5px; padding: 9px 18px; background: var(--green-soft); color: var(--green); border-radius: 999px; }

.source-link {
  display: inline-flex; align-items: center; gap: 10px; font-size: 14.5px; color: var(--green);
  border-bottom: 1px solid rgba(31,74,60,.3); padding-bottom: 3px;
}
.source-link:hover { gap: 16px; border-color: var(--gold); color: var(--gold); }

@media (max-width: 1080px) { .why-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 860px) { .fact-strip { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .fact-strip, .why-grid { grid-template-columns: 1fr; } }

/* ---------- 页脚 ---------- */
.site-footer { background: #1A2F27; color: rgba(255,255,255,.76); padding: 78px 0 0; font-size: 14.5px; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 46px; padding-bottom: 52px; }
.site-footer h5 { color: #fff; font-size: 15.5px; font-family: var(--sans); font-weight: 600; letter-spacing: .08em; margin-bottom: 22px; }
.site-footer li { margin-bottom: 12px; }
.site-footer a:hover { color: #fff; }
.footer-about p { margin: 18px 0 0; font-size: 14px; line-height: 1.9; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand .brand-mark { color: #fff; }
.footer-brand .brand-sub { color: rgba(255,255,255,.68); }
.footer-contact li { display: flex; gap: 10px; }
.footer-contact .k { color: rgba(255,255,255,.62); flex: none; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.14); padding: 24px 0 34px; display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; font-size: 13px; color: rgba(255,255,255,.66); }
.footer-bottom .beian a { color: rgba(255,255,255,.78); }
.footer-bottom .beian a:hover { color: #fff; }

/* ---------- 返回顶部 ---------- */
.to-top {
  position: fixed; right: 28px; bottom: 28px; width: 46px; height: 46px; border-radius: 50%;
  background: var(--green); color: #fff; border: 0; cursor: pointer; z-index: 90;
  display: grid; place-items: center; opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: all .35s var(--ease); box-shadow: 0 10px 26px rgba(31,74,60,.3);
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }

/* ---------- 滚动动画 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .biz-grid, .promise-grid, .cooper-grid { grid-template-columns: repeat(2, 1fr); }
  .honor-grid, .info-cards, .store-grid { grid-template-columns: repeat(2, 1fr); }
  .about-split, .prod-block, .contact-grid { grid-template-columns: 1fr; gap: 44px; }
  .prod-block.reverse .prod-media { order: 0; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 860px) {
  .section { padding: 76px 0; }
  .container { width: calc(100% - 36px); }
  .topbar { display: none; }
  .nav { gap: 16px; }
  .nav-cta { display: none; }
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed; inset: 0 0 0 auto; width: min(84vw, 340px); background: #fff;
    flex-direction: column; align-items: flex-start; gap: 0; padding: 96px 32px 40px;
    transform: translateX(100%); transition: transform .4s var(--ease); box-shadow: var(--shadow-lg);
  }
  .nav-links.is-open { transform: none; }
  .nav-links a { width: 100%; padding: 16px 0; border-bottom: 1px solid var(--line-soft); font-size: 17px; color: var(--ink) !important; }
  .nav-backdrop { position: fixed; inset: 0; background: rgba(16,28,24,.45); opacity: 0; visibility: hidden; transition: all .3s var(--ease); z-index: -1; }
  .nav-backdrop.show { opacity: 1; visibility: visible; }
  .hero { min-height: 92vh; }
  .hero-stats { margin-top: 56px; }
  .hero-stats .container { grid-template-columns: repeat(2, 1fr); }
  .hero-stats .stat { padding: 22px 0 26px; }
  .hero-stats .stat:nth-child(2) { border-right: 0; }
  .hero-stats .stat:nth-child(3), .hero-stats .stat:nth-child(4) { padding-left: 0; }
  .stat-num { font-size: 30px; }
  .check-list { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .biz-grid, .promise-grid, .cooper-grid, .honor-grid, .info-cards, .store-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .about-facts { grid-template-columns: 1fr; }
  .form-card { padding: 28px 22px; }
  .cta-band .container { flex-direction: column; align-items: flex-start; }
  .to-top { right: 16px; bottom: 16px; }
}