/* ============================================================
   YUNHE WOODEN TOYS — 国际版官网设计系统 v2
   Design language: Premium Scandinavian × Chinese Craftsmanship
   色彩：原木暖白 / 胡桃木棕 / 森林绿 / 琥珀金
   字体：衬线标题(传承感) + 无衬线正文(国际B2B)
   ============================================================ */

:root {
  /* 色彩系统 */
  --bg: #FAF6EF;            /* 暖米白 · 原木底 */
  --bg-alt: #F2EBDE;        /* 深米 · 交替区块 */
  --bg-wood: #4A3220;       /* 深胡桃 · 深色区块 */
  --bg-wood-2: #3A2819;
  --ink: #1C1712;           /* 暖墨黑 */
  --ink-soft: #6B5E50;      /* 暖灰 */
  --ink-faint: #9C8F7E;
  --wood: #7A5230;          /* 胡桃木棕 · 主色 */
  --wood-light: #A67B5B;
  --forest: #2F5233;        /* 森林绿 · 可持续点缀 */
  --amber: #C9A227;         /* 琥珀金 · 认证徽章 */
  --line: rgba(28, 23, 18, .10);
  --line-light: rgba(250, 246, 239, .14);

  /* 字体 */
  --font-serif: Georgia, "Times New Roman", "Songti SC", "SimSun", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Consolas, monospace;

  /* 度量 */
  --container: 1200px;
  --gutter: 24px;
  --radius: 14px;
  --radius-sm: 8px;

  /* 动效 */
  --ease: cubic-bezier(.22, .61, .36, 1);
  --dur: .45s;

  /* 层级 */
  --shadow-sm: 0 2px 10px rgba(28, 23, 18, .06);
  --shadow-md: 0 12px 40px rgba(28, 23, 18, .10);
  --shadow-wood: 0 20px 60px rgba(58, 40, 25, .28);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
::selection { background: var(--wood); color: #fff; }

/* ---------- 布局基元 ---------- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: 110px 0; position: relative; }
.section.alt { background: var(--bg-alt); }
.section.dark { background: var(--bg-wood); color: var(--bg); }
.section-tight { padding: 80px 0; }

/* 区块标题 */
.kicker {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 12px;
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--wood); margin-bottom: 18px;
}
.kicker::before { content: ""; width: 28px; height: 1px; background: var(--wood); }
.kicker.light { color: var(--amber); }
.kicker.light::before { background: var(--amber); }
.h2 {
  font-family: var(--font-serif);
  font-size: clamp(30px, 4.2vw, 46px);
  line-height: 1.15;
  font-weight: 600;
  letter-spacing: -.01em;
  margin-bottom: 18px;
}
.lead { font-size: 17px; color: var(--ink-soft); max-width: 640px; }
.section-head { max-width: 720px; margin-bottom: 64px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .lead { margin: 0 auto; }
.section-head.center .kicker { justify-content: center; }

/* ---------- Topbar ---------- */
.topbar {
  background: var(--bg-wood); color: rgba(250,246,239,.85);
  font-size: 12.5px; letter-spacing: .04em;
}
.topbar-inner {
  max-width: var(--container); margin: 0 auto; padding: 8px var(--gutter);
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.topbar a { color: rgba(250,246,239,.85); transition: color .2s; }
.topbar a:hover { color: #fff; }
.topbar .tb-right { display: flex; gap: 20px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(250, 246, 239, .88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .3s;
}
.site-header.scrolled { box-shadow: var(--shadow-sm); }
.header-inner {
  max-width: var(--container); margin: 0 auto;
  padding: 0 var(--gutter);
  height: 76px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.logo { display: flex; flex-direction: column; line-height: 1.15; }
.logo .cn { font-family: var(--font-serif); font-size: 20px; font-weight: 700; letter-spacing: .02em; }
.logo .en { font-family: var(--font-mono); font-size: 10px; letter-spacing: .28em; text-transform: uppercase; color: var(--wood); }
.nav { display: flex; align-items: center; gap: 6px; }
.nav a {
  padding: 9px 15px; border-radius: var(--radius-sm);
  font-size: 14.5px; font-weight: 500; color: var(--ink-soft);
  transition: all .25s var(--ease);
}
.nav a:hover { color: var(--ink); background: rgba(122, 82, 48, .08); }
.nav a.active { color: var(--wood); background: rgba(122, 82, 48, .10); font-weight: 600; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px;
  font-size: 14.5px; font-weight: 600; letter-spacing: .02em;
  transition: all .3s var(--ease); border: 1px solid transparent; white-space: nowrap;
}
.btn-primary { background: var(--wood); color: #fff; }
.btn-primary:hover { background: var(--wood-light); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-dark { background: var(--bg-wood); color: var(--bg); }
.btn-dark:hover { background: #5D4129; transform: translateY(-2px); box-shadow: var(--shadow-wood); }
.btn-ghost { border-color: var(--line); color: var(--ink); background: transparent; }
.btn-ghost:hover { border-color: var(--wood); color: var(--wood); transform: translateY(-2px); }
.btn-light { background: var(--bg); color: var(--ink); }
.btn-light:hover { background: #fff; transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-amber { background: var(--amber); color: #2A210B; }
.btn-amber:hover { filter: brightness(1.08); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn svg { width: 16px; height: 16px; }

/* 移动端汉堡 */
.nav-toggle { display: none; background: none; border: 0; padding: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 5px 0; border-radius: 2px; transition: .3s; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(201, 162, 39, .14), transparent 60%),
    radial-gradient(900px 600px at -10% 110%, rgba(47, 82, 51, .12), transparent 55%),
    var(--bg);
  padding: 120px 0 100px;
  overflow: hidden;
}
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 64px; align-items: center; }
.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(40px, 5.6vw, 66px);
  line-height: 1.08;
  font-weight: 600;
  letter-spacing: -.015em;
  margin-bottom: 26px;
}
.hero h1 .accent { color: var(--wood); font-style: italic; }
.hero .sub {
  font-size: 18px; color: var(--ink-soft); line-height: 1.8;
  max-width: 560px; margin-bottom: 36px;
}
.hero .cta-row { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 52px; }
.hero-meta { display: flex; gap: 36px; flex-wrap: wrap; }
.hero-meta .m-item { display: flex; align-items: center; gap: 12px; }
.hero-meta .m-ico { width: 42px; height: 42px; border-radius: 12px; background: rgba(122,82,48,.10); display: grid; place-items: center; color: var(--wood); }
.hero-meta .m-ico svg { width: 22px; height: 22px; }
.hero-meta .m-t { font-size: 13px; color: var(--ink-soft); }
.hero-meta .m-v { font-family: var(--font-serif); font-size: 17px; font-weight: 600; }

/* Hero 右侧视觉 */
.hero-visual { position: relative; }
.hero-visual .frame {
  background: #fff; border-radius: 24px;
  box-shadow: var(--shadow-wood);
  padding: 20px 20px 0;
  border: 1px solid var(--line-light);
  overflow: hidden;
}
.hero-visual .frame img { border-radius: 16px 16px 0 0; width: 100%; height: 380px; object-fit: cover; }
.hero-visual .cap {
  padding: 14px 8px 18px;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12.5px; color: var(--ink-soft);
}
.hero-visual .cap .dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--forest); margin-right: 6px; }
.badge-float {
  position: absolute; top: -18px; right: -12px;
  background: var(--wood); color: #fff;
  border-radius: 14px; padding: 14px 18px;
  box-shadow: var(--shadow-wood);
  font-size: 12.5px; line-height: 1.5; letter-spacing: .03em;
  animation: floaty 5s var(--ease) infinite;
}
.badge-float b { display: block; font-family: var(--font-serif); font-size: 17px; }
@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

/* ---------- 信任条 ---------- */
.trust-bar {
  border-top: 1px solid var(--line);
  background: var(--bg);
}
.trust-inner {
  max-width: var(--container); margin: 0 auto;
  padding: 26px var(--gutter);
  display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
}
.trust-inner .t-label { font-family: var(--font-mono); font-size: 11px; letter-spacing: .2em; text-transform: uppercase; color: var(--ink-faint); }
.trust-badges { display: flex; gap: 30px; flex-wrap: wrap; align-items: center; }
.trust-badge { display: flex; align-items: center; gap: 9px; font-size: 13.5px; font-weight: 600; color: var(--ink-soft); }
.trust-badge .tb-ico { width: 30px; height: 30px; border-radius: 50%; background: var(--bg-alt); display: grid; place-items: center; color: var(--wood); }
.trust-badge .tb-ico svg { width: 17px; height: 17px; }

/* ---------- 统计 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.stat { text-align: center; padding: 40px 16px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); transition: all .35s var(--ease); }
.stat:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(122,82,48,.3); }
.stat .num { font-family: var(--font-serif); font-size: clamp(38px, 4vw, 52px); font-weight: 700; color: var(--wood); line-height: 1; }
.stat .num .suffix { font-size: .55em; }
.stat .lbl { margin-top: 12px; font-size: 13.5px; color: var(--ink-soft); letter-spacing: .06em; }
.stat .lbl-en { font-family: var(--font-mono); font-size: 10.5px; color: var(--ink-faint); letter-spacing: .14em; text-transform: uppercase; margin-top: 4px; }

/* ---------- 特性/服务卡 ---------- */
.features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.feature {
  position: relative;
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 34px 28px 30px;
  transition: all .35s var(--ease);
  overflow: hidden;
}
.feature::after {
  content: ""; position: absolute; left: 0; top: 0; height: 100%; width: 3px;
  background: var(--wood); transform: scaleY(0); transform-origin: bottom;
  transition: transform .4s var(--ease);
}
.feature:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.feature:hover::after { transform: scaleY(1); }
.feature .num { font-family: var(--font-mono); font-size: 12px; letter-spacing: .18em; color: var(--ink-faint); }
.feature .ico { width: 52px; height: 52px; border-radius: 14px; background: rgba(122,82,48,.08); color: var(--wood); display: grid; place-items: center; margin: 18px 0 16px; }
.feature .ico svg { width: 26px; height: 26px; }
.feature h3 { font-family: var(--font-serif); font-size: 19px; margin-bottom: 8px; }
.feature .en { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .16em; text-transform: uppercase; color: var(--wood); display: block; margin-bottom: 10px; }
.feature p { font-size: 14px; color: var(--ink-soft); line-height: 1.75; }

/* 产品网格（3列） */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: all .35s var(--ease);
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.card .card-img { aspect-ratio: 4/3; background: #fff; display: grid; place-items: center; padding: 16px; border-bottom: 1px solid var(--line); }
.card .card-img img { width: 100%; height: 100%; object-fit: contain; transition: transform .5s var(--ease); }
.card:hover .card-img img { transform: scale(1.06); }
.card .card-body { padding: 22px 24px 26px; }
.card h3 { font-family: var(--font-serif); font-size: 18px; margin-bottom: 6px; }
.card .en { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--wood); display: block; margin-bottom: 10px; }
.card p { font-size: 13.5px; color: var(--ink-soft); line-height: 1.75; }

/* ---------- 工序时间线 ---------- */
.process-steps { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; counter-reset: step; }
.step { position: relative; padding: 0 18px; text-align: center; }
.step::before {
  counter-increment: step; content: "0" counter(step);
  display: grid; place-items: center;
  width: 46px; height: 46px; margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--bg); color: var(--wood);
  font-family: var(--font-serif); font-size: 16px; font-weight: 700;
  border: 1px solid rgba(122,82,48,.35);
  position: relative; z-index: 2;
}
.step::after {
  content: ""; position: absolute; top: 23px; left: calc(50% + 28px);
  width: calc(100% - 56px); height: 1px;
  background: repeating-linear-gradient(90deg, rgba(122,82,48,.35) 0 5px, transparent 5px 10px);
}
.step:last-child::after { display: none; }
.step h4 { font-family: var(--font-serif); font-size: 16px; margin-bottom: 5px; }
.step .en { font-family: var(--font-mono); font-size: 9.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--wood); display: block; margin-bottom: 8px; }
.step p { font-size: 12.5px; color: var(--ink-soft); line-height: 1.7; }

/* ---------- 客户墙 ---------- */
.clients { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.client {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 22px 20px; text-align: center;
  transition: all .3s var(--ease);
}
.client:hover { border-color: var(--wood); box-shadow: var(--shadow-sm); transform: translateY(-3px); }
.client .c-name { font-family: var(--font-serif); font-size: 16px; font-weight: 600; }
.client .c-en { font-family: var(--font-mono); font-size: 9.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-faint); margin-top: 4px; }

/* ---------- 认证 ---------- */
.certs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.cert {
  background: rgba(250,246,239,.05);
  border: 1px solid var(--line-light);
  border-radius: var(--radius); padding: 26px 22px;
  text-align: center; transition: all .3s var(--ease);
}
.cert:hover { background: rgba(250,246,239,.09); transform: translateY(-3px); }
.cert .c-badge { width: 54px; height: 54px; margin: 0 auto 14px; border-radius: 50%; background: rgba(201,162,39,.15); display: grid; place-items: center; color: var(--amber); }
.cert .c-badge svg { width: 26px; height: 26px; }
.cert h4 { font-family: var(--font-serif); font-size: 16px; letter-spacing: .06em; margin-bottom: 6px; }
.cert p { font-size: 12px; color: rgba(250,246,239,.6); line-height: 1.7; }

/* ---------- CTA ---------- */
.cta-band {
  background:
    radial-gradient(700px 400px at 15% 20%, rgba(201,162,39,.18), transparent 60%),
    radial-gradient(800px 500px at 90% 90%, rgba(166,123,91,.25), transparent 55%),
    var(--bg-wood-2);
  color: var(--bg);
  text-align: center;
  padding: 100px 0;
}
.cta-band .h2 { color: var(--bg); }
.cta-band .lead { color: rgba(250,246,239,.7); margin: 0 auto 40px; }
.cta-row-center { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.site-footer { background: #221A12; color: rgba(250,246,239,.72); font-size: 14px; }
.footer-inner {
  max-width: var(--container); margin: 0 auto;
  padding: 70px var(--gutter) 40px;
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 48px;
}
.footer-brand .logo .cn { color: var(--bg); }
.footer-brand .logo .en { color: var(--amber); }
.footer-brand p { margin-top: 16px; font-size: 13.5px; line-height: 1.8; color: rgba(250,246,239,.6); }
.footer-col h5 { font-family: var(--font-mono); font-size: 11px; letter-spacing: .2em; text-transform: uppercase; color: var(--amber); margin-bottom: 20px; }
.footer-col a { display: block; padding: 5px 0; color: rgba(250,246,239,.72); transition: color .2s; font-size: 13.5px; }
.footer-col a:hover { color: #fff; }
.footer-contact li { display: flex; gap: 10px; padding: 5px 0; font-size: 13.5px; }
.footer-contact svg { width: 15px; height: 15px; color: var(--amber); flex-shrink: 0; margin-top: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(250,246,239,.1);
  padding: 22px 0;
  font-size: 12px; color: rgba(250,246,239,.45);
}
.footer-bottom .fb-inner {
  max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter);
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}

/* ---------- 页面头 ---------- */
.page-hero {
  background:
    radial-gradient(900px 400px at 90% 0%, rgba(201,162,39,.12), transparent 55%),
    var(--bg-alt);
  padding: 88px 0 64px;
  border-bottom: 1px solid var(--line);
}
.page-hero .kicker { margin-bottom: 14px; }
.page-hero h1 { font-family: var(--font-serif); font-size: clamp(34px, 4.6vw, 54px); font-weight: 600; letter-spacing: -.01em; margin-bottom: 14px; }
.page-hero .lead { max-width: 700px; }
.breadcrumb { font-family: var(--font-mono); font-size: 11px; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 18px; }
.breadcrumb a { color: var(--wood); }
.breadcrumb a:hover { text-decoration: underline; }

/* ---------- 时间线（about） ---------- */
.timeline { position: relative; padding-left: 34px; }
.timeline::before { content: ""; position: absolute; left: 9px; top: 4px; bottom: 4px; width: 1px; background: var(--line); }
.tl-item { position: relative; padding: 0 0 44px 26px; }
.tl-item::before {
  content: ""; position: absolute; left: -30px; top: 7px;
  width: 19px; height: 19px; border-radius: 50%;
  background: var(--bg); border: 4px solid var(--wood);
}
.tl-item .tl-year { font-family: var(--font-serif); font-size: 22px; font-weight: 700; color: var(--wood); }
.tl-item .tl-en { font-family: var(--font-mono); font-size: 10px; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-faint); display: block; margin-bottom: 6px; }
.tl-item p { font-size: 14.5px; color: var(--ink-soft); max-width: 560px; }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; align-items: start; }
.contact-info .ci-item { display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.contact-info .ci-item .ci-ico { width: 44px; height: 44px; flex-shrink: 0; border-radius: 12px; background: rgba(122,82,48,.08); color: var(--wood); display: grid; place-items: center; }
.contact-info .ci-item .ci-ico svg { width: 21px; height: 21px; }
.contact-info .ci-item h4 { font-size: 14px; margin-bottom: 2px; }
.contact-info .ci-item p { font-size: 13.5px; color: var(--ink-soft); }
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 36px; box-shadow: var(--shadow-sm); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 12.5px; font-weight: 600; letter-spacing: .04em; margin-bottom: 7px; color: var(--ink-soft); }
.field label .req { color: var(--wood); }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 15px;
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  font-family: inherit; font-size: 14.5px; color: var(--ink);
  background: var(--bg); transition: border-color .25s, box-shadow .25s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--wood);
  box-shadow: 0 0 0 3px rgba(122,82,48,.12); background: #fff;
}
.field textarea { min-height: 130px; resize: vertical; }
.form-note { font-size: 12px; color: var(--ink-faint); margin-top: 12px; }

/* ---------- 表格/清单 ---------- */
.check-list li { display: flex; gap: 12px; padding: 9px 0; font-size: 14.5px; color: var(--ink-soft); }
.check-list li::before {
  content: ""; flex-shrink: 0; width: 20px; height: 20px; margin-top: 3px;
  border-radius: 50%; background: rgba(47,82,51,.12); color: var(--forest);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232F5233' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E");
  background-size: 12px; background-position: center; background-repeat: no-repeat;
}

/* ---------- 滚动渐入动效 ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }
.reveal.d4 { transition-delay: .32s; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .features { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(3, 1fr); row-gap: 36px; }
  .process-steps .step:nth-child(3)::after { display: none; }
  .certs { grid-template-columns: repeat(2, 1fr); }
  .clients { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { max-width: 560px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .section { padding: 76px 0; }
  .nav {
    position: fixed; top: 76px; left: 0; right: 0;
    background: var(--bg); flex-direction: column; align-items: stretch;
    padding: 16px var(--gutter) 24px; gap: 4px;
    border-bottom: 1px solid var(--line);
    transform: translateY(-120%); transition: transform .35s var(--ease);
    box-shadow: var(--shadow-md);
  }
  .nav.open { transform: none; }
  .nav a { padding: 13px 15px; font-size: 16px; }
  .nav .btn { margin-top: 8px; justify-content: center; }
  .nav-toggle { display: block; }
  .features, .grid-3, .grid-2, .certs { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; gap: 14px; }
  .process-steps { grid-template-columns: 1fr 1fr; }
  .process-steps .step::after { display: none; }
  .clients { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .form-row { grid-template-columns: 1fr; }
  .hero { padding: 76px 0 64px; }
  .badge-float { right: 4px; }
  .topbar .tb-right { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ===== FAQ Page ===== */
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid #eee; border-radius: 12px; padding: 24px 28px; margin-bottom: 16px; transition: box-shadow .3s ease; }
.faq-item:hover { box-shadow: 0 6px 24px rgba(0,0,0,.06); }
.faq-q { font-size: 17px; font-weight: 600; color: var(--wood, #8B5E3C); margin-bottom: 8px; line-height: 1.4; }
.faq-a { font-size: 15px; line-height: 1.7; color: #555; }