/* =====================================================================
   PEPTIDRESEARCH — Visual System v3 （深蓝医疗严谨风）
   · 深海军蓝主色 + 医疗蓝点缀，稳重可信
   · 衬线标题 + 无衬线正文，药企官网调性
   · 方角感卡片 10px、弱阴影、强层次
   · 浅蓝灰底 + 深蓝主题区块
   ===================================================================== */

/* ---------- 1. 令牌 ---------- */
:root {
  /* 主色：深海军蓝（医疗/药企调性） */
  --olive-900: #071a33;
  --olive-800: #0c2647;
  --olive-700: #123a6b;   /* 主色 */
  --olive-600: #1a4d8f;
  --olive-500: #2f6bb5;
  --olive-300: #8fb4dd;
  --olive-100: #dbe7f5;
  --olive-50:  #f6f3fd;

  /* 医疗蓝（点缀/强调） */
  --accent: #6d4ae0;
  --accent-600: #5233c2;
  --accent-50: #f0ebfd;

  /* 中性（冷调灰） */
  --n-900: #171236;
  --n-700: #3a3163;
  --n-500: #6b6289;
  --n-400: #8b83a5;
  --n-300: #b3acc8;
  --n-200: #dcd7ea;
  --n-100: #eeeaf8;
  --n-50:  #f9f7fd;

  --white: #ffffff;
  --line: #e4def1;

  /* 字体 */
  --font: "Manrope", -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-display: "Lora", "Noto Serif SC", Georgia, "Times New Roman", serif;

  /* 字号 */
  --fs-hero:  clamp(36px, 4vw, 54px);
  --fs-h2:    clamp(26px, 2.8vw, 38px);
  --fs-h3:    clamp(17px, 1.4vw, 20px);
  --fs-body:  16px;
  --fs-sm:    14.5px;
  --fs-xs:    12.5px;

  /* 间距 */
  --sp-section: clamp(72px, 8vw, 120px);
  --sp-block:   clamp(32px, 3.6vw, 52px);
  --sp-gap:     clamp(18px, 1.8vw, 26px);

  --r-pill: 100px;
  --r-lg: 10px;
  --r-md: 8px;
  --r-sm: 6px;

  --sh-sm: 0 1px 2px rgba(14,27,44,0.06);
  --sh-md: 0 2px 10px rgba(14,27,44,0.08);
  --sh-lg: 0 14px 40px rgba(14,27,44,0.14);

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 2. 基础 ---------- */
body {
  font-family: var(--font);
  color: var(--n-700);
  font-size: var(--fs-body);
  line-height: 1.65;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--n-900);
  font-weight: 600;
  letter-spacing: -0.012em;
  line-height: 1.2;
}
h1 { font-size: var(--fs-hero); margin-bottom: 18px; }
h2 { font-size: var(--fs-h2); margin-bottom: 14px; }
h3 { font-size: var(--fs-h3); margin-bottom: 8px; font-family: var(--font); font-weight: 600; letter-spacing: -0.01em; }
p  { color: var(--n-500); }

/* eyebrow：小字 + 字距，不用胶囊底 */
.eyebrow {
  display: block;
  margin: 0 0 14px;
  padding: 0;
  border-radius: 0;
  background: none !important;
  color: var(--olive-600) !important;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.hero .eyebrow, .page-hero .eyebrow { color: rgba(255,255,255,0.72) !important; }

/* ---------- 3. 通知条：细横条，轮播 ---------- */
.notice-bar {
  display: flex; justify-content: center; align-items: center;
  background: var(--olive-700);
  color: rgba(255,255,255,0.9);
  font-size: 12.5px; font-weight: 500; letter-spacing: 0.03em;
  padding: 9px 18px;
  border: none;
  position: relative;
  height: 36px;
  overflow: hidden;
}
.notice-track { position: relative; width: 100%; height: 100%; text-align: center; }
.notice-track span {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  opacity: 0;
  animation: noticeRotate 15s infinite;
}
.notice-track span:nth-child(1) { animation-delay: 0s; }
.notice-track span:nth-child(2) { animation-delay: 5s; }
.notice-track span:nth-child(3) { animation-delay: 10s; }
@keyframes noticeRotate {
  0%, 2%    { opacity: 0; transform: translateY(6px); }
  4%, 30%   { opacity: 1; transform: translateY(0); }
  33%, 100% { opacity: 0; transform: translateY(-6px); }
}
.notice-bar span::before { content: none !important; }
@media (prefers-reduced-motion: reduce) {
  .notice-track span { animation: none; opacity: 0; }
  .notice-track span:nth-child(1) { opacity: 1; }
}

/* ---------- 4. 导航：两行式（上行品牌+菜单，下行功能区） ---------- */
.nav-wrap {
  display: block;
  padding: 0;
  background: rgba(255,255,255,0.96);
  backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--line);
  box-shadow: none;
}
.nav-row-main {
  display: flex; align-items: center;
  gap: clamp(14px, 2.2vw, 34px);
  padding: 0 clamp(20px, 5vw, 64px);
  height: 74px;
  max-width: 1560px;
  margin: 0 auto;
  width: 100%;
}
.brand { flex: 0 0 auto; display: flex; align-items: center; }
.brand img { width: auto; height: 34px; }
.main-menu {
  display: flex; align-items: center; gap: clamp(16px, 1.8vw, 30px); flex: 1 1 auto;
  font-size: 14px; font-weight: 500; letter-spacing: 0;
  text-transform: none;                     /* 不再全大写 */
  white-space: nowrap;
}
.main-menu a { color: var(--n-700); padding: 4px 0; position: relative; }
.main-menu a::after { content: none; }
.main-menu a:hover { color: var(--olive-700); }
.nav-tools {
  display: flex; align-items: center; gap: 6px;
  flex: 0 0 auto;
  margin-left: auto;
  padding-left: clamp(12px, 1.6vw, 26px);
  border-left: 1px solid var(--line);
}
/* 第二行：功能区（搜索/账户/购物车/收藏/报价） */
@media (min-width: 1281px) {
  .nav-row-tools { display: none; }
}
@media (max-width: 1280px) {
  .nav-row-main { height: auto; flex-wrap: wrap; padding-top: 10px; padding-bottom: 10px; row-gap: 6px; }
  .nav-row-main .nav-tools {
    order: 3;
    flex: 1 1 100%;
    margin-left: 0;
    padding-left: 0;
    border-left: none;
    border-top: 1px solid var(--line);
    padding-top: 8px;
    justify-content: flex-end;
  }
  .main-menu { flex: 0 0 auto; }
}
@media (max-width: 760px) {
  .nav-tools .icon-button { padding: 0 8px; }
}

/* ---------- 5. 按钮：胶囊 ---------- */
.quote-link, .button, .icon-button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 0 26px;
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  font-family: var(--font);
  font-size: 14.5px; font-weight: 600; letter-spacing: 0;
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.quote-link, .button.primary {
  background: var(--olive-700);
  color: #fff;
  box-shadow: none;
}
.quote-link:hover, .button.primary:hover {
  background: var(--olive-800);
  transform: none;
  box-shadow: none;
}
.button.secondary {
  background: transparent;
  border-color: rgba(255,255,255,0.42);
  color: #fff;
  backdrop-filter: none;
}
.button.secondary:hover { background: rgba(255,255,255,0.12); transform: none; }
.button.outline {
  background: #fff;
  border-color: var(--n-200);
  color: var(--n-800, var(--n-900));
}
.button.outline:hover { border-color: var(--olive-500); background: var(--olive-50); }
.icon-button {
  background: transparent; border: none; color: var(--n-500);
  min-height: 40px; padding: 0 12px; font-weight: 500;
}
.icon-button:hover { color: var(--olive-700); }
.nav-tools .quote-link { padding: 0 22px; }

/* ---------- 6. Hero：深蓝主题分栏 ---------- */
.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 54%) minmax(0, 46%);
  align-items: stretch;
  min-height: min(78vh, 660px);
  padding: 0;
  background: var(--olive-900);
  overflow: hidden;
}
/* 深蓝渐变 + 细微网格纹理 */
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(1100px 520px at 12% 0%, rgba(47,107,181,0.42) 0%, rgba(7,26,51,0) 62%),
    linear-gradient(160deg, #071a33 0%, #0c2647 52%, #081d38 100%);
}
.hero-content {
  position: relative; z-index: 2;
  display: flex; flex-direction: column; justify-content: center;
  padding: clamp(56px, 6vw, 100px) clamp(28px, 4.5vw, 76px);
  background: transparent;
}
.hero-media {
  position: relative; inset: auto;
  height: 100%; min-height: 100%;
  background: url("assets/hero-banner.webp") 58% 32% / cover no-repeat;
}
/* 图片左侧淡入融合，避免生硬接缝 */
.hero-media::before {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, #081d38 0%, rgba(8,29,56,0.55) 22%, rgba(8,29,56,0) 52%),
    linear-gradient(180deg, rgba(7,26,51,0.18) 0%, rgba(7,26,51,0) 40%);
}
.hero h1 {
  font-family: var(--font-display);
  color: #fff;
  font-size: clamp(34px, 3.5vw, 50px) !important;
  line-height: 1.14 !important;
  font-weight: 600;
  letter-spacing: -0.015em;
  max-width: 560px;
  margin-bottom: 20px;
}
.hero p:not(.eyebrow) {
  font-size: clamp(15.5px, 1.1vw, 17px) !important;
  color: rgba(255,255,255,0.76);
  line-height: 1.7;
  max-width: 520px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.hero .eyebrow {
  color: var(--olive-300) !important;
  letter-spacing: 0.16em;
}
/* Hero 按钮：深底上主按纽用亮蓝，次按钮用描边 */
.hero .button.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.hero .button.primary:hover { background: #15a0e6; border-color: #15a0e6; }
.hero .button.secondary {
  border-color: rgba(255,255,255,0.34);
  color: #fff;
  background: rgba(255,255,255,0.06);
}
.hero .button.secondary:hover {
  border-color: rgba(255,255,255,0.7);
  background: rgba(255,255,255,0.13);
}
/* 底部亮点条 */
.hero-marks {
  display: flex; flex-wrap: wrap; gap: 10px 26px; margin-top: 38px;
  padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.14);
}
.hero-marks span {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 500; color: rgba(255,255,255,0.78);
}
.hero-marks span::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent); flex: 0 0 auto;
}

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-content { order: 2; padding: 48px 22px 56px; }
  .hero-media { order: 1; min-height: 280px; height: 280px; }
  .hero-media::before {
    background: linear-gradient(180deg, rgba(8,29,56,0.05) 0%, rgba(8,29,56,0.85) 100%);
  }
  .hero h1 { font-size: clamp(28px, 8vw, 36px) !important; }
}

/* ---------- 7. 信任条：浅灰底细卡 ---------- */
.trust-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.trust-strip > div {
  background: var(--white);
  padding: clamp(26px, 2.6vw, 36px) clamp(20px, 2.4vw, 32px);
  position: relative;
  transition: background .2s var(--ease);
}
.trust-strip > div::after { content: none; }
.trust-strip > div:hover { background: var(--olive-50); }
.trust-strip h3 {
  font-size: 15.5px; font-weight: 600; margin-bottom: 6px; color: var(--n-900);
  display: flex; align-items: center; gap: 9px;
}
.trust-strip h3::before {
  content: ""; width: 18px; height: 18px; flex-shrink: 0;
  border-radius: 4px;
  background: var(--olive-700);
  opacity: 0.85;
}
.trust-strip p { margin: 0; font-size: var(--fs-sm); color: var(--n-500); line-height: 1.58; }

/* ---------- 8. 合规声明 ---------- */
.compliance-note {
  background: var(--olive-50);
  border-top: 1px solid var(--n-200);
  border-bottom: 1px solid var(--n-200);
  padding: 16px clamp(110px, 12vw, 170px) 16px clamp(20px, 5vw, 64px);
  font-size: 13px;
  color: var(--n-700);
  line-height: 1.6;
  text-align: center;
  font-weight: 500;
}
.compliance-note strong {
  color: var(--olive-800);
  font-weight: 700;
  display: inline-block;
  margin-right: 6px;
}

/* ---------- 9. 区块节奏 ---------- */
.section { padding: var(--sp-section) clamp(20px, 5vw, 64px); background: var(--white); }
.section > * { max-width: 1560px; margin-left: auto; margin-right: auto; }
.section-head { max-width: 720px; margin-bottom: var(--sp-block); }
.section-head h2 { margin-bottom: 10px; }
.section-head > p { color: var(--n-500); font-size: 16.5px; max-width: 600px; }
/* 交替浅底 */
.section.products, .section.featured-products { background: var(--n-50); }
.section.certifications, .section.about { background: var(--white); }
.section.blog, .section.faq { background: var(--n-50); }

/* ---------- 10. 卡片：无边框、底色分层 ---------- */
.category-grid, .product-grid, .feature-grid, .blog-grid {
  display: grid; gap: var(--sp-gap);
}
.category-grid { grid-template-columns: repeat(auto-fit, minmax(330px, 1fr)); }
.product-grid  { grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); }
.blog-grid     { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

.category-card, .product-card, .blog-grid article {
  border: none;
  border-radius: var(--r-lg);
  background: var(--white);
  box-shadow: none;
  overflow: hidden;
  transition: box-shadow .2s var(--ease), transform .2s var(--ease);
}
.category-card:hover, .product-card:hover, .blog-grid article:hover {
  transform: translateY(-2px);
  box-shadow: var(--sh-md);
}
.product-card img, .category-card img { background: var(--n-100); }

/* 分类卡：图标块 + 文字，不同类不同色调 */
.category-card a { display: flex; align-items: flex-start; gap: 18px; padding: 22px; }
.category-card .cat-icon {
  width: 56px; height: 56px; flex-shrink: 0;
  border-radius: var(--r-md);
  background: var(--olive-100);
  position: relative;
}
/* 图标：中心点 + 环，抽象分子符号 */
.category-card .cat-icon::before {
  content: ""; position: absolute; left: 50%; top: 50%;
  width: 14px; height: 14px; margin: -7px 0 0 -7px;
  border-radius: 50%; background: var(--olive-700);
  box-shadow: 0 -13px 0 -5px var(--olive-500),
              0 13px 0 -5px var(--olive-500),
              -13px 0 0 -5px var(--olive-500),
              13px 0 0 -5px var(--olive-500);
}
/* 按卡片序号轮换色调 */
.category-card:nth-child(2) .cat-icon { background: #e9f0f8; }
.category-card:nth-child(2) .cat-icon::before { background: #2c5c8f; box-shadow: 0 -13px 0 -5px #6d95c2, 0 13px 0 -5px #6d95c2, -13px 0 0 -5px #6d95c2, 13px 0 0 -5px #6d95c2; }
.category-card:nth-child(3) .cat-icon { background: #eaf3f9; }
.category-card:nth-child(3) .cat-icon::before { background: #17618f; box-shadow: 0 -13px 0 -5px #5b9dc4, 0 13px 0 -5px #5b9dc4, -13px 0 0 -5px #5b9dc4, 13px 0 0 -5px #5b9dc4; }
.category-card:nth-child(4) .cat-icon { background: #eceff8; }
.category-card:nth-child(4) .cat-icon::before { background: #3a4a80; box-shadow: 0 -13px 0 -5px #7d8bb8, 0 13px 0 -5px #7d8bb8, -13px 0 0 -5px #7d8bb8, 13px 0 0 -5px #7d8bb8; }
.category-card:nth-child(5) .cat-icon { background: #e7f1f5; }
.category-card:nth-child(5) .cat-icon::before { background: #146a7a; box-shadow: 0 -13px 0 -5px #5aa3b0, 0 13px 0 -5px #5aa3b0, -13px 0 0 -5px #5aa3b0, 13px 0 0 -5px #5aa3b0; }
.category-card:nth-child(6) .cat-icon { background: #e9eef6; }
.category-card:nth-child(6) .cat-icon::before { background: #24507f; box-shadow: 0 -13px 0 -5px #6689b3, 0 13px 0 -5px #6689b3, -13px 0 0 -5px #6689b3, 13px 0 0 -5px #6689b3; }
.category-card:nth-child(7) .cat-icon { background: #edf1f7; }
.category-card:nth-child(7) .cat-icon::before { background: #33567e; box-shadow: 0 -13px 0 -5px #7893b5, 0 13px 0 -5px #7893b5, -13px 0 0 -5px #7893b5, 13px 0 0 -5px #7893b5; }
.category-card h3 { font-size: 16.5px; margin: 5px 0 4px; }
.category-card p { font-size: var(--fs-sm); color: var(--n-500); margin: 0 0 8px; }
.category-card .pill {
  display: inline-block; padding: 0; margin-bottom: 6px;
  background: none; color: var(--olive-600);
  font-size: 11.5px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
}
.category-card span { color: var(--olive-700); font-weight: 600; font-size: var(--fs-sm); }

/* 产品卡 */
.product-card { display: flex; flex-direction: column; }
.product-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
.product-card h3 { margin: 16px 16px 4px; font-size: 16px; color: var(--n-900); font-weight: 600; }
.product-card p  { margin: 0 16px 14px; color: var(--n-500); font-size: var(--fs-sm); line-height: 1.5; }
.product-card .button, .product-card a.button { margin: 0 16px 18px; align-self: flex-start; }

/* ---------- 11. 质检区：浅底 + 深色要点卡 ---------- */
.section.certifications { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1.1fr); gap: clamp(32px,4vw,64px); align-items: start; }
.cert-points { display: grid; gap: 0; margin: 26px 0 30px; }
.cert-points > div { padding: 16px 0; border-bottom: 1px solid var(--line); border-left: none; padding-left: 0; }
.cert-points > div:first-child { border-top: 1px solid var(--line); }
.cert-points strong { display: block; color: var(--n-900); font-size: 15px; font-weight: 600; margin-bottom: 2px; }
.cert-points span { color: var(--n-500); font-size: var(--fs-sm); }
.cert-products { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px,1fr)); gap: 16px; }
.cert-products article { text-align: center; }
.cert-products img { width: 100%; aspect-ratio: 1/1; object-fit: cover; border-radius: var(--r-md); background: var(--n-100); }
.cert-products h3 { font-size: 14px; margin: 10px 0 4px; font-weight: 600; }
.cert-products a { font-size: 13px; color: var(--olive-700); }
@media (max-width: 900px) { .section.certifications { grid-template-columns: 1fr; } }

/* ---------- 12. 数据区 ---------- */
.stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px,1fr));
  gap: var(--sp-gap); text-align: center;
  background: var(--olive-900);
  border-top: none;
  border-bottom: none;
  padding: clamp(44px, 5vw, 72px) clamp(20px, 5vw, 64px);
  position: relative;
}
.stats::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(900px 340px at 50% 0%, rgba(47,107,181,0.35) 0%, rgba(7,26,51,0) 70%);
  pointer-events: none;
}
.stats > div { position: relative; z-index: 1; }
.stats strong {
  display: block; font-size: clamp(34px, 3.6vw, 48px); font-weight: 600;
  font-family: var(--font-display);
  letter-spacing: -0.02em; color: #fff; line-height: 1; margin-bottom: 10px;
}
.stats span { color: rgba(255,255,255,0.66); font-size: var(--fs-sm); font-weight: 500; }

/* ---------- 12b. 四步流程条 ---------- */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-gap); }
.process-grid article { position: relative; padding: 28px 24px 26px; background: var(--white); border: 1px solid var(--line); border-radius: var(--r-lg); }
.process-num { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 0.12em; color: var(--olive-700); background: var(--olive-50); padding: 4px 10px; border-radius: 999px; margin-bottom: 14px; }
.process-grid h3 { margin: 0 0 8px; font-size: 16.5px; font-weight: 600; color: var(--n-900); line-height: 1.35; }
.process-grid p { margin: 0; font-size: 13.5px; line-height: 1.65; color: var(--n-500); }
/* 连接线 */
.process-grid article:not(:last-child)::after {
  content: ""; position: absolute; top: 46px; right: -14px; width: 28px; height: 1px;
  background: repeating-linear-gradient(90deg, var(--line) 0 4px, transparent 4px 8px);
}
@media (max-width: 1024px) { .process-grid { grid-template-columns: repeat(2, 1fr); } .process-grid article::after { display: none; } }
@media (max-width: 560px) { .process-grid { grid-template-columns: 1fr; } }

/* ---------- 12c. 产品对比表 ---------- */
.compare-filter { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 20px; }
.compare-filter a {
  display: inline-flex; align-items: center; height: 36px; padding: 0 16px;
  border: 1px solid var(--line); border-radius: var(--r-pill); background: var(--white);
  font-size: 13px; font-weight: 500; color: var(--n-700); text-decoration: none;
  transition: background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}
.compare-filter a:hover { border-color: var(--olive-300); color: var(--olive-700); }
.compare-filter a.active { background: var(--olive-700); border-color: var(--olive-700); color: #fff; }
.cat-chip {
  display: inline-block; padding: 3px 9px; border-radius: 999px;
  background: var(--olive-50); color: var(--olive-700);
  font-size: 11.5px; font-weight: 600; letter-spacing: 0.02em; white-space: nowrap;
}
.compare-table .c-size, .compare-table .c-pack { white-space: nowrap; color: var(--n-700); }
.compare-table .c-cta { white-space: nowrap; }
.compare-table .c-cta a { color: var(--olive-700); font-weight: 600; font-size: 13px; text-decoration: none; border-bottom: 1px solid rgba(18,58,107,0.28); padding-bottom: 1px; }
.compare-table .c-cta a:hover { border-bottom-color: var(--olive-700); }
.compare-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--white); -webkit-overflow-scrolling: touch; }
.compare-table { width: 100%; border-collapse: collapse; min-width: 760px; font-size: 14px; }
.compare-table thead th {
  text-align: left; padding: 14px 18px; font-size: 11.5px; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--n-500);
  background: var(--olive-50); border-bottom: 1px solid var(--line); white-space: nowrap;
}
.compare-table tbody th, .compare-table tbody td { padding: 14px 18px; border-bottom: 1px solid var(--line); vertical-align: top; }
.compare-table tbody tr:last-child th, .compare-table tbody tr:last-child td { border-bottom: none; }
.compare-table tbody tr:hover { background: rgba(18,58,107,0.03); }
.compare-table tbody th { text-align: left; font-weight: 600; color: var(--n-900); font-size: 14.5px; white-space: nowrap; }
.compare-table td { color: var(--n-500); line-height: 1.55; }
.compare-table .c-sku { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12.5px; color: var(--olive-700); max-width: 320px; }
.compare-table .c-coa { white-space: nowrap; font-weight: 500; color: var(--olive-700); }
.compare-note { margin: 16px 0 0; font-size: 12.5px; color: var(--n-500); line-height: 1.6; }

/* ---------- 13. FAQ ---------- */
.faq-list { display: grid; gap: 0; max-width: 900px; }
.faq-list details { border: none; border-bottom: 1px solid var(--line); border-radius: 0; background: transparent; overflow: visible; }
.faq-list details:first-child { border-top: 1px solid var(--line); }
.faq-list details[open] { box-shadow: none; border-color: var(--line); }
.faq-list summary {
  cursor: pointer; padding: 20px 44px 20px 0; font-weight: 500;
  color: var(--n-900); font-size: 16px; position: relative; list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+"; position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  font-size: 20px; font-weight: 400; color: var(--olive-600); transition: transform .2s var(--ease);
}
.faq-list details[open] summary::after { content: "\2013"; }
.faq-list details p { margin: 0; padding: 0 0 20px; color: var(--n-500); font-size: var(--fs-sm); }

/* ---------- 14. 联系 / 询价 ---------- */
.quote-section {
  display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr);
  gap: clamp(32px,4vw,68px); align-items: start;
  padding: var(--sp-section) clamp(20px, 5vw, 64px);
  background: var(--olive-700);
  color: #fff; max-width: none;
}
.quote-section h2 { color: #fff; font-size: clamp(24px,2.6vw,34px); font-weight: 600; }
.quote-section > div > p { color: rgba(255,255,255,0.72); }
.quote-section .eyebrow { color: rgba(255,255,255,0.65) !important; }
.contact-details { margin: 24px 0; display: grid; gap: 9px; }
.contact-details p { margin: 0; font-size: var(--fs-sm); color: rgba(255,255,255,0.75); }
.contact-details strong { color: #fff; font-weight: 600; display: inline-block; min-width: 148px; }
.contact-details a { color: #fff; text-decoration: underline; text-underline-offset: 3px; }
.direct-contact { color: rgba(255,255,255,0.72); font-size: var(--fs-sm); }
.direct-contact a { color: #fff; font-weight: 600; }
.quote-form {
  display: grid; gap: 14px; padding: clamp(26px, 3vw, 38px);
  background: #fff; border-radius: var(--r-lg); box-shadow: var(--sh-lg);
}
.quote-form label { display: grid; gap: 6px; font-size: var(--fs-sm); font-weight: 600; color: var(--n-700); }
.quote-form input, .quote-form textarea, form input, form textarea {
  border: 1px solid var(--n-200); border-radius: var(--r-sm);
  padding: 12px 14px; font-size: var(--fs-body); font-family: var(--font);
  background: #fff; color: var(--n-900);
  transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
}
.quote-form input:focus, .quote-form textarea:focus, form input:focus, form textarea:focus {
  outline: none; border-color: var(--olive-500); box-shadow: 0 0 0 3px rgba(82,97,74,0.12);
}
.quote-form .hidden-field { display: none; }
.form-note { margin: 0; font-size: var(--fs-sm); color: var(--olive-700); font-weight: 600; }
@media (max-width: 860px) { .quote-section { grid-template-columns: 1fr; } }

/* ---------- 15. 页脚 ---------- */
.site-footer {
  background: var(--olive-900);
  color: rgba(255,255,255,0.62);
  padding: var(--sp-section) clamp(20px, 5vw, 64px) 34px;
}
.site-footer h2, .site-footer h3 { color: #fff; font-weight: 600; }
.site-footer a { color: rgba(255,255,255,0.68); }
.site-footer a:hover { color: #fff; }
.site-footer .footer-topline {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 20px; padding-bottom: 26px; margin-bottom: 30px;
  border-bottom: 1px solid rgba(255,255,255,0.10);
}
.site-footer .footer-topline h2 { font-size: 19px; margin-bottom: 4px; }
.site-footer .footer-topline p { margin: 0; font-size: var(--fs-sm); max-width: 560px; }
.footer-logo img {
  max-height: 46px; width: auto; display: block;
  background: #fff; padding: 8px 12px; border-radius: 10px;
}

/* 页脚信任区：验证入口 / 注册实体 / 付款条款 */
.footer-trust {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(248px, 1fr));
  gap: 1px;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--r-lg);
  overflow: hidden;
  margin-bottom: 34px;
}
.footer-trust-item { background: rgba(255,255,255,0.03); padding: 24px 22px; }
.footer-trust-item h3 {
  font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em;
  color: rgba(255,255,255,0.62); font-weight: 600; margin-bottom: 10px;
}
.footer-trust-item p { margin: 0 0 8px; font-size: 13.5px; line-height: 1.6; color: rgba(255,255,255,0.72); }
.footer-trust-item p strong { color: #fff; font-weight: 600; }
.footer-verify-link {
  display: inline-block; margin-top: 4px;
  font-size: 13px; font-weight: 600; color: var(--olive-300) !important;
}
.footer-verify-link:hover { color: #fff !important; }

/* ---------- 14b. 买家评价 ---------- */
.testimonial-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--sp-gap);
}
.testimonial-grid figure {
  margin: 0; padding: clamp(24px, 2.6vw, 34px);
  background: var(--n-50); border-radius: var(--r-lg); border: none;
  display: flex; flex-direction: column; justify-content: space-between;
}
.testimonial-grid blockquote {
  margin: 0 0 20px; font-size: 15.5px; line-height: 1.65;
  color: var(--n-800, var(--n-900)); position: relative; padding-top: 26px;
}
.testimonial-grid blockquote::before {
  content: "\201C"; position: absolute; top: -6px; left: 0;
  font-size: 46px; line-height: 1; color: var(--olive-300); font-family: var(--font-display);
}
.testimonial-grid figcaption { display: flex; flex-direction: column; gap: 2px; }
.testimonial-grid figcaption strong { font-size: 13.5px; font-weight: 600; color: var(--n-900); }
.testimonial-grid figcaption span { font-size: 12.5px; color: var(--n-500); }
@media (max-width: 760px) { .testimonial-grid { grid-template-columns: 1fr; } }

/* ---------- 16. 子页 Hero ---------- */
.page-hero {
  position: relative;
  padding: clamp(58px, 6vw, 92px) clamp(20px, 5vw, 64px);
  background: var(--olive-700);
  color: #fff;
}
.page-hero h1 { color: #fff; font-size: clamp(30px, 3.4vw, 44px); font-weight: 600; }
.page-hero p:not(.eyebrow) { color: rgba(255,255,255,0.76); max-width: 640px; font-size: 16.5px; }

/* ---------- 17. 筛选栏 ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: var(--sp-block); }
.filter-bar a {
  padding: 8px 18px; border: 1px solid var(--n-200); border-radius: var(--r-pill);
  background: #fff; color: var(--n-500); font-size: var(--fs-sm); font-weight: 500;
  transition: all .18s var(--ease);
}
.filter-bar a:hover { border-color: var(--olive-500); color: var(--olive-700); }
.filter-bar a.active { background: var(--olive-700); border-color: var(--olive-700); color: #fff; }
.category-intro { margin-bottom: 26px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.category-intro h2 { margin-bottom: 8px; }
.category-intro p { color: var(--n-500); max-width: 680px; }
.category-intro .pill {
  display: inline-block; margin-bottom: 10px; padding: 0; background: none;
  color: var(--olive-600); font-size: 12px; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
}

/* ---------- 18. 详情页 ---------- */
.detail-layout {
  display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr);
  gap: clamp(28px,4vw,64px); align-items: start;
  padding: clamp(44px,5vw,80px) clamp(20px,5vw,64px);
  max-width: 1560px; margin: 0 auto;
}
.detail-media img { width: 100%; border-radius: var(--r-lg); background: var(--n-100); border: none; }
.detail-copy h1 { font-size: clamp(28px,3.2vw,40px); }
.detail-copy .specs {
  display: grid; grid-template-columns: repeat(2,1fr); gap: 1px;
  background: var(--line); border: none; border-radius: var(--r-md); overflow: hidden; margin: 26px 0;
}
.detail-copy .specs > div { background: #fff; padding: 16px 18px; }
.detail-copy .specs dt {
  font-size: 11.5px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--n-400); margin-bottom: 4px;
}
.detail-copy .specs dd { margin: 0; font-weight: 600; color: var(--n-900); }
.detail-copy .tag-row { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 26px; }
.detail-copy .tag-row span {
  padding: 5px 13px; border-radius: var(--r-pill); background: var(--olive-50);
  color: var(--olive-700); font-size: 12.5px; font-weight: 500;
}
.detail-actions { display: flex; flex-wrap: wrap; gap: 10px; }

.info-columns { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px,1fr)); gap: var(--sp-gap); }
.info-columns article {
  padding: 26px 24px; border: 1px solid var(--line); border-radius: var(--r-lg); background: #fff;
  transition: border-color .2s var(--ease);
}
.info-columns article:hover { border-color: var(--olive-300); }
.info-columns h3 { font-size: 16px; margin-bottom: 8px; font-weight: 600; }
.info-columns p { margin: 0; font-size: var(--fs-sm); color: var(--n-500); }

@media (max-width: 860px) {
  .detail-layout { grid-template-columns: 1fr; }
  .detail-copy .specs { grid-template-columns: 1fr; }
}

/* 悬浮联系：靠右位置下移，避开卡片区 */
.floating-contacts {
  right: 22px !important;
  bottom: 22px !important;
  opacity: 1;
}
.floating-contact-item {
  border-radius: var(--r-pill) !important;
  box-shadow: var(--sh-md) !important;
  transition: box-shadow .2s var(--ease) !important;
  min-width: 0 !important;
}
.floating-contact-item:hover { transform: none; box-shadow: var(--sh-lg) !important; }
.floating-whatsapp { background: var(--olive-700) !important; animation: none !important; }

/* ---------- 20. 购物车 ---------- */
.cart-list { display: grid; gap: 12px; margin-bottom: 26px; }
.cart-list article {
  display: grid; grid-template-columns: 84px 1fr auto; gap: 16px; align-items: center;
  padding: 14px; border: 1px solid var(--line); border-radius: var(--r-lg); background: #fff;
}
.cart-list img { width: 84px; height: 84px; object-fit: cover; border-radius: var(--r-md); background: var(--n-100); }
.cart-list h3 { font-size: 16px; margin-bottom: 2px; font-weight: 600; }
.cart-list p { margin: 0; font-size: var(--fs-sm); color: var(--n-500); }
.qty-controls { display: flex; align-items: center; gap: 10px; }
.qty-controls button {
  width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--n-200);
  background: #fff; cursor: pointer; font-weight: 600; color: var(--olive-700);
}
.qty-controls button:hover { background: var(--olive-50); border-color: var(--olive-500); }

/* ---------- 21. 细节 ---------- */
::selection { background: var(--olive-100); color: var(--olive-900); }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--n-50); }
::-webkit-scrollbar-thumb { background: var(--n-200); border-radius: var(--r-pill); }
::-webkit-scrollbar-thumb:hover { background: var(--n-300); }
img { border-radius: 0; }

/* ---------- 22. 手机端：产品/分类卡片两列 ---------- */
@media (max-width: 900px) {
  /* 导航：手机端只留 logo + 汉堡，其他全部折叠 */
  .nav-row-main {
    height: 66px !important;
    flex-wrap: nowrap !important;
    padding: 0 18px !important;
    row-gap: 0 !important;
  }
  .nav-row-main .nav-tools { display: none !important; }
  .nav-toggle {
    display: inline-flex !important;
    align-items: center;
    margin-left: auto;
    min-height: 38px;
    padding: 0 16px;
    border: 1px solid var(--n-200);
    border-radius: var(--r-pill);
    background: #fff;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--olive-700);
    cursor: pointer;
  }
  .main-menu {
    display: none !important;
    flex: 1 1 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 6px 0 10px;
  }
  /* 展开时：实心白底 + 独立面板，彻底隔离背景图 */
  .main-menu.open,
  .main-menu.is-open {
    display: flex !important;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: #fff;
    padding: 6px 18px 4px;
    box-shadow: 0 18px 36px rgba(16,20,14,0.16);
    border-bottom: 1px solid var(--line);
    z-index: 60;
  }
  .nav-row-main { position: relative; }
  .main-menu a {
    display: block;
    width: 100%;
    padding: 13px 0;
    border-bottom: 1px solid var(--line);
    font-size: 15.5px;
    font-weight: 500;
    color: var(--n-900);
  }
  .main-menu a:last-child { border-bottom: none; }
}

@media (max-width: 760px) {
  :root { --sp-gap: 12px; }

  /* 产品卡、分类卡：强制两列 */
  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 12px !important;
  }
  .category-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 12px !important;
  }
  .blog-grid, .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 12px !important;
  }

  /* 卡片内部收紧，适配窄列 */
  .product-card, .category-card, .blog-grid article { border-radius: 12px !important; }
  .product-card img, .category-card img {
    aspect-ratio: 4/3 !important;
    width: 100% !important;
    height: auto !important;
    object-fit: cover !important;
  }
  .product-card h3, .category-card h3 {
    font-size: 13.5px !important;
    line-height: 1.35 !important;
    margin: 8px 10px 4px !important;
    word-break: break-word;
  }
  .product-card p, .category-card p {
    font-size: 12px !important;
    margin: 0 10px 6px !important;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .product-card .button, .product-card a.button, .category-card .button {
    margin: 0 10px 12px !important;
    padding: 8px 14px !important;
    font-size: 12.5px !important;
    width: calc(100% - 20px);
    justify-content: center;
    text-align: center;
  }
  .product-card .price, .category-card .price { font-size: 13px !important; margin-left: 10px !important; }

  /* 质检区产品图也两列 */
  .cert-products { grid-template-columns: repeat(2, minmax(0, 1fr)) !important; gap: 12px !important; }

  /* 信任条两列 */
  .trust-strip { grid-template-columns: repeat(2, minmax(0, 1fr)) !important; }
}