/* ============================================
   MUPUTY — 主样式表
   配色：暖米 / 鼠尾草绿 / 暖陶土
   ============================================ */

:root {
  --bg:        #F7F4EF;
  --bg-alt:    #EFEAE2;
  --text:      #2F3A2F;
  --text-soft: #7A8074;
  --border:    #E2DCD2;
  --accent:    #8B9A7B;
  --accent-2:  #C9A47C;
  --dark:      #3D4A3D;
  --white:     #FFFFFF;

  --radius:    14px;
  --radius-lg: 20px;
  --shadow:    0 4px 20px rgba(139, 154, 123, 0.08);
  --shadow-lg: 0 12px 40px rgba(139, 154, 123, 0.14);
  --transition: 0.5s cubic-bezier(0.22, 0.61, 0.36, 1);

  --font-serif: 'Cormorant Garamond', Georgia, 'Noto Serif SC', serif;
  --font-sans:  'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans SC', sans-serif;

  --nav-h: 72px;
  --topbar-h: 38px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.2;
  margin: 0 0 0.6em;
  color: var(--text);
}
h1 { font-size: clamp(2.4rem, 5vw, 4rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.9rem, 3.6vw, 3rem); }
h3 { font-size: clamp(1.3rem, 2vw, 1.75rem); }
h4 { font-size: 1.15rem; }
p { margin: 0 0 1.2em; color: var(--text-soft); }

.container {
  width: min(1200px, 90%);
  margin: 0 auto;
}

/* ---------- 顶部次级条 ---------- */
.top-bar {
  height: var(--topbar-h);
  background: var(--dark);
  color: rgba(255,255,255,0.85);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
}
.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}
.top-bar a { color: rgba(255,255,255,0.85); }
.top-bar a:hover { color: var(--accent-2); }
.top-bar .top-bar-right { display: flex; gap: 20px; align-items: center; }

/* ---------- 导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(247, 244, 239, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: 0 2px 16px rgba(47,58,47,0.06); }
.nav-wrap {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo img { height: 40px; width: auto; }
.logo-text {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text);
}
.logo-text span { color: var(--accent); }

.main-nav {
  display: flex;
  align-items: center;
  gap: 34px;
}
.main-nav > li { position: relative; }
.main-nav > li > a {
  display: block;
  padding: 8px 0;
  font-size: 0.94rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--text);
  position: relative;
}
.main-nav > li > a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}
.main-nav > li > a:hover::after,
.main-nav > li.active > a::after { width: 100%; }

.dropdown-menu {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  min-width: 210px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 10px 0;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}
.main-nav > li:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.dropdown-menu li a {
  display: block;
  padding: 10px 22px;
  font-size: 0.9rem;
  color: var(--text-soft);
}
.dropdown-menu li a:hover {
  background: var(--bg-alt);
  color: var(--accent);
}

.nav-right { display: flex; align-items: center; gap: 18px; }

/* 汉堡按钮 */
.hamburger {
  display: none;
  width: 42px; height: 42px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  border-radius: 10px;
}
.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.35s ease;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 按钮系统 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 32px;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  text-align: center;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 18px rgba(139,154,123,0.28);
}
.btn-primary:hover {
  background: #78876A;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(139,154,123,0.36);
}
.btn-primary:disabled,
.btn-primary.is-loading {
  opacity: 0.75;
  cursor: not-allowed;
  transform: none;
  position: relative;
}
.btn-primary.is-loading::before {
  content: '';
  width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin-right: 4px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.btn-terracotta {
  background: var(--accent-2);
  color: #fff;
  box-shadow: 0 6px 18px rgba(201,164,124,0.3);
}
.btn-terracotta:hover {
  background: #B08F66;
  color: #fff;
  transform: translateY(-2px);
}
.btn-block { display: flex; width: 100%; }
.btn-lg { padding: 18px 42px; font-size: 1rem; }

/* ---------- Section ---------- */
.section { padding: 100px 0; }
.section-sm { padding: 70px 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--dark); color: #fff; }
.section-dark h2,
.section-dark h3 { color: #fff; }
.section-dark p { color: rgba(255,255,255,0.75); }

.section-head {
  max-width: 720px;
  margin: 0 auto 60px;
  text-align: center;
}
.section-head .eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  font-weight: 600;
}
.section-head p { font-size: 1.05rem; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #EFEAE2 0%, #E3E8DA 100%);
  overflow: hidden;
}
.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0.55;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(247,244,239,0.92) 0%, rgba(247,244,239,0.55) 55%, rgba(247,244,239,0.2) 100%);
  z-index: 1;
}
.hero .container {
  position: relative;
  z-index: 2;
  padding: 120px 0;
}
.hero-content { max-width: 640px; }
.hero h1 { margin-bottom: 24px; }
.hero h1 em {
  font-style: italic;
  color: var(--accent);
}
.hero-lead {
  font-size: 1.15rem;
  color: var(--text-soft);
  margin-bottom: 36px;
  max-width: 520px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: 32px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.card-media {
  aspect-ratio: 4 / 5;
  background: var(--bg-alt);
  overflow: hidden;
}
.card-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}
.card:hover .card-media img { transform: scale(1.05); }
.card-body { padding: 28px 28px 32px; }
.card-body h3 { margin-bottom: 10px; }
.card-body p { font-size: 0.94rem; margin-bottom: 0; }
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.03em;
}
.card-link::after {
  content: '→';
  transition: transform var(--transition);
}
.card-link:hover::after { transform: translateX(5px); }

/* ---------- 特性列表 ---------- */
.feature-list { display: grid; gap: 28px; }
.feature-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.feature-icon {
  flex-shrink: 0;
  width: 52px; height: 52px;
  border-radius: 14px;
  background: rgba(139,154,123,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--accent);
}
.feature-item h4 { margin-bottom: 6px; }
.feature-item p { font-size: 0.94rem; margin-bottom: 0; }

/* ---------- 数据条 ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-num {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 600;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 0.86rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-soft);
}

/* ---------- 客户评价横滑区（头像在上） ---------- */
.reviews-scroll-wrap {
  position: relative;
}

.reviews-scroll {
  display: flex;
  gap: 28px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-padding: 0 4%;
  -webkit-overflow-scrolling: touch;
  padding: 8px 4px 28px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.reviews-scroll::-webkit-scrollbar { height: 6px; }
.reviews-scroll::-webkit-scrollbar-track { background: transparent; }
.reviews-scroll::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}
.reviews-scroll::-webkit-scrollbar-thumb:hover { background: var(--accent); }

.review-card {
  flex: 0 0 calc((100% - 56px) / 3);
  scroll-snap-align: start;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 32px 36px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  /* 固定最小高度，保证所有卡片视觉一致 */
  min-height: 340px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.review-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

/* 作者区 — 顶部 */
.review-author {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}

.review-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  background: var(--bg-alt);
  border: 2px solid var(--bg-alt);
}

.review-author-info { min-width: 0; }
.review-author-name {
  font-weight: 600;
  color: var(--text);
  margin: 0 0 2px;
  font-size: 0.95rem;
}
.review-author-role {
  font-size: 0.82rem;
  color: var(--text-soft);
  margin: 0;
}

/* 引号装饰 */
.review-quote-mark {
  font-family: var(--font-serif);
  font-size: 3.2rem;
  line-height: 0.8;
  color: var(--accent);
  opacity: 0.35;
  margin-bottom: 4px;
}

/* 评语 — 弹性区，占满剩余空间 */
.review-text {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--text);
  line-height: 1.75;
  margin: 0;
  flex: 1 1 auto;
  min-height: 120px;   /* 中文 3 行；英文约 4–5 行 */
}

/* 移动端：一屏显示 1.2 张 */
@media (max-width: 768px) {
  .review-card {
    flex: 0 0 84%;
    min-height: 320px;
    padding: 28px 26px 30px;
  }
  .review-text {
    font-size: 1rem;
    min-height: 110px;
  }
  .reviews-scroll { gap: 18px; scroll-padding: 0 8%; }
}

@media (max-width: 420px) {
  .review-card { flex: 0 0 90%; }
}

/* ---------- 表格 ---------- */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  font-size: 0.94rem;
}
.spec-table th,
.spec-table td {
  padding: 16px 22px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.spec-table th {
  background: var(--bg-alt);
  font-weight: 600;
  font-size: 0.86rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text);
}
.spec-table tr:last-child td { border-bottom: none; }
.spec-table td { color: var(--text-soft); }

/* ---------- 认证徽章 ---------- */
.badge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 20px;
}
.badge {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 16px;
  text-align: center;
  transition: all var(--transition);
}
.badge:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.badge strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--text);
  margin-bottom: 6px;
}
.badge span { font-size: 0.8rem; color: var(--text-soft); }

/* ---------- 流程步骤 ---------- */
.process {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0;
  counter-reset: step;
}
.process-step {
  position: relative;
  padding: 0 20px 0 0;
  counter-increment: step;
}
.process-step::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-serif);
  font-size: 2.6rem;
  font-weight: 600;
  color: var(--accent);
  opacity: 0.35;
  display: block;
  margin-bottom: 14px;
  line-height: 1;
}
.process-step h4 { margin-bottom: 8px; font-size: 1.1rem; }
.process-step p { font-size: 0.9rem; margin-bottom: 0; }

/* ---------- FAQ 折叠 ---------- */
.faq-group { margin-bottom: 48px; }
.faq-group > h3 {
  padding-bottom: 16px;
  border-bottom: 2px solid var(--accent);
  margin-bottom: 24px;
}
.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
  transition: all var(--transition);
}
.faq-item[open] { box-shadow: var(--shadow); border-color: var(--accent); }
.faq-item summary {
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 500;
  color: var(--text);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: color var(--transition);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--accent);
  transition: transform var(--transition);
  flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary:hover { color: var(--accent); }
.faq-answer {
  padding: 0 24px 24px;
  font-size: 0.94rem;
  color: var(--text-soft);
  line-height: 1.8;
}

/* 法律区块锚点偏移 */
#privacy, #terms, #statement,
#mats, #apparel, #balls, #download,
#story, #factory, #certifications, #cases {
  scroll-margin-top: 130px;
}

/* ---------- 表单 ---------- */
.form-wrap {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 48px 44px;
  box-shadow: var(--shadow);
}
.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 20px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 0.86rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--text);
  margin-bottom: 8px;
}
.form-group label .req { color: var(--accent-2); }
.form-control {
  width: 100%;
  padding: 14px 18px;
  font-family: inherit;
  font-size: 0.94rem;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: all var(--transition);
}
.form-control:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(139,154,123,0.12);
}
textarea.form-control { resize: vertical; min-height: 130px; }
select.form-control { appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%237A8074' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 18px center;
  padding-right: 44px;
}

/* Turnstile 容器 */
.turnstile-wrap {
  margin: 8px 0 22px;
  min-height: 65px;
}

/* 表单状态消息（必须在 form 外） */
.form-status {
  margin-top: 22px;
  padding: 16px 22px;
  border-radius: 10px;
  font-size: 0.92rem;
  display: none;
  line-height: 1.6;
}
.form-status.success {
  display: block;
  background: rgba(139,154,123,0.12);
  color: #5A6B4D;
  border: 1px solid rgba(139,154,123,0.3);
}
.form-status.error {
  display: block;
  background: rgba(201,100,100,0.1);
  color: #9C4A4A;
  border: 1px solid rgba(201,100,100,0.3);
}

/* 联系信息卡 */
.contact-info { display: grid; gap: 20px; }
.contact-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 22px;
  background: var(--bg-alt);
  border-radius: var(--radius);
}
.contact-item .feature-icon { width: 44px; height: 44px; font-size: 1.15rem; }
.contact-item strong {
  display: block;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-soft);
  margin-bottom: 4px;
}
.contact-item a,
.contact-item p { font-size: 1rem; color: var(--text); margin: 0; }
.contact-item a:hover { color: var(--accent); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.72);
  padding: 80px 0 0;
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 56px;
}
.footer-brand .logo-text { color: #fff; margin-bottom: 16px; display: inline-block; }
.footer-brand p {
  color: rgba(255,255,255,0.6);
  font-size: 0.88rem;
  line-height: 1.8;
  max-width: 300px;
}
.footer-col h4 {
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 22px;
}
.footer-col li { margin-bottom: 12px; }
.footer-col a { color: rgba(255,255,255,0.62); font-size: 0.9rem; }
.footer-col a:hover { color: var(--accent-2); }
.footer-contact li {
  color: rgba(255,255,255,0.62);
  line-height: 1.7;
  margin-bottom: 14px;
}
.footer-contact a { color: rgba(255,255,255,0.72); }
.footer-contact a:hover { color: var(--accent-2); }

.footer-legal {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 24px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  justify-content: center;
  font-size: 0.84rem;
}
.footer-legal a { color: rgba(255,255,255,0.55); }
.footer-legal a:hover { color: var(--accent-2); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 24px 0;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.03em;
}

/* ---------- 返回顶部 ---------- */
.back-to-top {
  position: fixed;
  right: 28px;
  bottom: 28px;
  width: 50px; height: 50px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(139,154,123,0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all var(--transition);
  z-index: 900;
}
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: #78876A; color: #fff; transform: translateY(-3px); }

/* ---------- 语言切换器 ---------- */
.lang-switcher { position: relative; }
.lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: all var(--transition);
}
.lang-btn:hover { border-color: var(--accent); color: var(--accent); }
.lang-btn svg { width: 14px; height: 14px; }
.lang-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 150px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition);
}
.lang-switcher.open .lang-menu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.lang-menu li a {
  display: block;
  padding: 9px 18px;
  font-size: 0.88rem;
  color: var(--text-soft);
}
.lang-menu li a:hover { background: var(--bg-alt); color: var(--accent); }
.lang-menu li a.active { color: var(--accent); font-weight: 600; }

/* ---------- 页面 Banner ---------- */
.page-banner {
  background: linear-gradient(135deg, #EFEAE2 0%, #E3E8DA 100%);
  padding: 90px 0 70px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-banner::before {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: rgba(139,154,123,0.08);
  top: -200px; right: -100px;
}
.page-banner .container { position: relative; z-index: 1; }
.page-banner .breadcrumb {
  font-size: 0.84rem;
  letter-spacing: 0.06em;
  color: var(--text-soft);
  margin-bottom: 18px;
}
.page-banner .breadcrumb a { color: var(--text-soft); }
.page-banner .breadcrumb a:hover { color: var(--accent); }
.page-banner h1 { margin-bottom: 12px; }
.page-banner p { max-width: 620px; margin: 0 auto; font-size: 1.05rem; }

/* ---------- 占位图 ---------- */
.placeholder {
  background:
    repeating-linear-gradient(45deg, #E9E4DA 0 20px, #EFEAE2 20px 40px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #A8AD9E;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ---------- CTA 区块 ---------- */
.cta-block {
  background: linear-gradient(135deg, var(--dark) 0%, #4E5C4A 100%);
  border-radius: var(--radius-lg);
  padding: 72px 48px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-block::before {
  content: '';
  position: absolute;
  width: 340px; height: 340px;
  border-radius: 50%;
  background: rgba(201,164,124,0.14);
  top: -120px; left: -80px;
}
.cta-block h2 { color: #fff; position: relative; }
.cta-block p {
  color: rgba(255,255,255,0.78);
  max-width: 560px;
  margin: 0 auto 34px;
  position: relative;
}
.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 36px; }
}

@media (max-width: 768px) {
  :root { --nav-h: 62px; }
  .section { padding: 64px 0; }
  .section-sm { padding: 48px 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; padding-bottom: 40px; }
  .cta-block { padding: 52px 26px; }
  .form-wrap { padding: 34px 24px; }

  .hamburger { display: flex; }
  .nav-right { gap: 10px; }

  /* 移动端主导航下拉 */
  .main-nav {
    position: fixed;
    top: calc(var(--nav-h) + var(--topbar-h));
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    padding: 8px 0 20px;
    max-height: calc(100vh - var(--nav-h) - var(--topbar-h));
    overflow-y: auto;
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.35s ease;
  }
  .main-nav.open { transform: translateY(0); opacity: 1; visibility: visible; }
  .main-nav > li { border-bottom: 1px solid var(--border); }
  .main-nav > li > a { display: block; padding: 15px 24px; font-size: 1rem; }
  .main-nav > li > a::after { display: none; }
  .dropdown-menu {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    border: none;
    border-radius: 0;
    background: var(--bg-alt);
    padding: 4px 0 10px 18px;
    min-width: 0;
    display: none;
  }
  .main-nav > li:hover .dropdown-menu { display: none; }
  .main-nav > li.expanded .dropdown-menu { display: block; }
  .dropdown-menu li a { padding: 10px 24px; }

  .top-bar { font-size: 0.74rem; }
  .top-bar .top-bar-right { display: none; }
  .top-bar .container { justify-content: center; }

  .hero { min-height: 78vh; }
  .hero .container { padding: 80px 0; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }

  .back-to-top { right: 18px; bottom: 18px; width: 44px; height: 44px; font-size: 0.72rem; }

  .spec-table th, .spec-table td { padding: 12px 14px; font-size: 0.86rem; }
  .page-banner { padding: 60px 0 50px; }
}

@media (max-width: 420px) {
  .logo img { height: 34px; }
  .logo-text { font-size: 1.25rem; }
}

/* ---------- 下载中心卡片（按钮底部对齐） ---------- */
.download-card {
  display: flex;
  flex-direction: column;
  padding: 32px;
  text-align: center;
}

.download-card .feature-icon {
  margin: 0 auto 20px;
}

.download-card h3 {
  margin-bottom: 12px;
}

.download-card p {
  flex: 1 1 auto;
  margin-bottom: 24px;
}

.download-card .btn {
  margin-top: auto;
  align-self: stretch;
}