/* ============================================================
   苏福（深圳）科技有限公司官网 — 全局样式
   设计语言：简约大气 / B2B 工业材料 / 深海军蓝 + 金色点缀
   说明：所有页面正文为静态 HTML，JS 仅做增强（不影响抓取）
   ============================================================ */

:root {
  /* 色彩系统 */
  --c-navy: #0B2A5B;          /* 品牌主色：深海军蓝 */
  --c-navy-deep: #071C3F;     /* 主色深阶 */
  --c-blue: #0E5FD8;          /* 交互 / 链接 */
  --c-blue-soft: #EAF1FC;     /* 蓝色浅底 */
  --c-gold: #C9A227;          /* 金色点缀（资质 / 高亮） */
  --c-gold-soft: #FBF6E6;
  --c-bg: #FFFFFF;
  --c-bg-gray: #F5F7FA;
  --c-bg-dark: #0B2A5B;
  --c-text: #1B2540;
  --c-text-2: #46516B;
  --c-text-3: #8A93A8;
  --c-border: #E4E9F2;
  --c-white: #FFFFFF;

  /* 字体 */
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC",
    "Helvetica Neue", Arial, sans-serif;

  /* 尺寸 */
  --container: 1200px;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(11, 42, 91, 0.06);
  --shadow-md: 0 8px 28px rgba(11, 42, 91, 0.10);
  --shadow-lg: 0 20px 50px rgba(11, 42, 91, 0.16);
  --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- 基础 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-sans);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--c-blue); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--c-navy); }

ul, ol { list-style: none; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 88px 0; }
.section--gray { background: var(--c-bg-gray); }
.section--dark {
  background: linear-gradient(135deg, var(--c-navy-deep) 0%, var(--c-navy) 100%);
  color: var(--c-white);
}

/* 区块标题体系（H2 语义层级） */
.section-head { max-width: 760px; margin: 0 auto 56px; text-align: center; }
.section-head .eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-blue);
  margin-bottom: 14px;
}
.section-head h2 {
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--c-navy);
  letter-spacing: -0.01em;
}
.section--dark .section-head h2 { color: var(--c-white); }
.section--dark .section-head .eyebrow { color: var(--c-gold); }
.section-head p { margin-top: 16px; color: var(--c-text-2); font-size: 16px; }
.section--dark .section-head p { color: rgba(255, 255, 255, 0.78); }

/* ---------- 顶部信息条 ---------- */
.topbar {
  background: var(--c-navy-deep);
  color: rgba(255, 255, 255, 0.82);
  font-size: 13px;
  padding: 8px 0;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.topbar a { color: rgba(255, 255, 255, 0.82); }
.topbar a:hover { color: var(--c-gold); }
.topbar .topbar-meta { display: flex; gap: 24px; align-items: center; }
.topbar .topbar-meta span { display: inline-flex; align-items: center; gap: 6px; }
.topbar svg { width: 13px; height: 13px; fill: currentColor; opacity: 0.7; }

/* ---------- 站点页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 12px;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  height: 48px;
  width: auto;
}
.brand-logo img {
  height: 100%;
  width: auto;
  max-width: none;
  display: block;
}
.brand-name {
  display: flex;
  flex-direction: column;
  justify-content: center;
  line-height: 1.3;
}
.brand-name strong {
  display: block;
  font-size: 22px;
  font-weight: 700;
  color: var(--c-navy);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.brand-name small {
  display: block;
  font-size: 13px;
  color: var(--c-text-2);
  letter-spacing: 0.03em;
  font-weight: 500;
  margin-top: 4px;
  white-space: nowrap;
}

/* tech.html 使用 brand-text，保持与 brand-name 同视觉规格 */
.brand-text { line-height: 1.3; }
.brand-text strong { display: block; font-size: 22px; font-weight: 700; color: var(--c-navy); letter-spacing: 0.02em; white-space: nowrap; }
.brand-text span {
  display: block;
  font-size: 13px;
  color: var(--c-text-2);
  letter-spacing: 0.03em;
  font-weight: 500;
  margin-top: 4px;
  white-space: nowrap;
}

.main-nav ul { display: flex; gap: 6px; }
.main-nav a {
  display: block;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--c-text-2);
  font-size: 15px;
  font-weight: 500;
}
.main-nav a:hover { color: var(--c-navy); background: var(--c-bg-gray); }
.main-nav a[aria-current="page"] { color: var(--c-blue); background: var(--c-blue-soft); font-weight: 600; }

/* ===== 全站搜索框（顶导，置于「联系我们」之前） ===== */
.nav-search { position: relative; margin-left: 0; }
.nav-search-input {
  width: 172px; height: 33px; padding: 0 30px 0 31px;
  border: 1.5px solid var(--c-border); border-radius: 999px;
  background: #fff url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235C6577' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><circle cx='11' cy='11' r='7'/><line x1='20' y1='20' x2='16.5' y2='16.5'/></svg>") no-repeat 11px center / 14px 14px;
  font-size: 12.5px; color: var(--c-text); outline: none;
  transition: border-color .2s ease, box-shadow .2s ease, background-color .2s ease;
}
.nav-search-input::placeholder { color: var(--c-text-3); font-size: 12px; }
.nav-search-input:hover { border-color: #c8d1e0; }
.nav-search-input:focus {
  border-color: var(--c-blue);
  box-shadow: 0 0 0 3px rgba(14, 95, 216, 0.12);
}
.nav-search-input::-webkit-search-cancel-button {
  -webkit-appearance: none; appearance: none;
  width: 14px; height: 14px; margin-right: 12px;
  background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235C6577' stroke-width='2.5' stroke-linecap='round'><line x1='6' y1='6' x2='18' y2='18'/><line x1='18' y1='6' x2='6' y2='18'/></svg>") no-repeat center / 14px 14px;
  cursor: pointer; opacity: 0.7;
}
.nav-search-input::-webkit-search-cancel-button:hover { opacity: 1; }

.nav-search-results {
  position: absolute; top: calc(100% + 8px); right: 0;
  width: 340px; max-height: 440px; overflow-y: auto;
  background: #fff; border: 1px solid var(--c-border);
  border-radius: 12px; box-shadow: 0 16px 40px rgba(11, 42, 91, 0.16);
  z-index: 1000; padding: 6px 0;
}
.nav-search-results[hidden] { display: none; }
.nsr-item {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 10px 16px; text-decoration: none; color: var(--c-text);
  transition: background-color .12s ease;
  border-bottom: 1px solid #f3f5f9;
}
.nsr-item:last-child { border-bottom: none; }
.nsr-item:hover,
.nsr-item:focus-visible {
  background: var(--c-bg-gray); outline: none;
}
.nsr-item:hover .nsr-title { color: var(--c-blue); }
.nsr-badge {
  flex-shrink: 0; display: inline-flex; align-items: center;
  padding: 3px 10px; border-radius: 999px;
  font-size: 11.5px; font-weight: 700; letter-spacing: 0.02em;
  margin-top: 2px;
}
.nsr-text { display: flex; flex-direction: column; gap: 3px; min-width: 0; flex: 1; }
.nsr-title {
  font-size: 14px; font-weight: 600; color: var(--c-navy);
  line-height: 1.4;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.nsr-desc {
  font-size: 12.5px; color: var(--c-text-3); line-height: 1.45;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}
.nsr-item mark {
  background: rgba(201, 162, 39, 0.22); color: inherit;
  padding: 0 1px; border-radius: 2px; font-weight: 700;
}
.nsr-empty {
  padding: 28px 16px; text-align: center;
  color: var(--c-text-3); font-size: 13.5px;
}
.nsr-empty::before {
  content: '🔍'; display: block; font-size: 24px;
  margin-bottom: 8px; opacity: 0.6;
}

@media (max-width: 980px) {
  .nav-search { display: none; }
}
@media (max-width: 1200px) {
  .nav-search-input { width: 140px; padding: 0 28px 0 29px; }
}

.header-cta { display: flex; align-items: center; gap: 12px; }
.header-cta .phone { font-weight: 700; color: var(--c-navy); font-size: 15px; }
.phone-group { display: flex; align-items: center; gap: 8px; }
.phone-group .phone-item { display: inline-flex; align-items: center; gap: 4px; color: var(--c-navy); font-weight: 600; font-size: 14px; white-space: nowrap; transition: color var(--transition); }
.phone-group .phone-item:hover { color: var(--c-blue); }
.phone-group .phone-item .phone-label { font-size: 11px; color: var(--c-text-3); font-weight: 500; background: var(--c-bg-gray); padding: 2px 6px; border-radius: 4px; line-height: 1; }
.phone-group .phone-divider { width: 1px; height: 16px; background: var(--c-border); }

/* 导航栏联系卡片下拉 */
.contact-trigger { position: relative; }
.contact-trigger-label {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 600; color: var(--c-navy);
  cursor: pointer; padding: 6px 12px; border-radius: 8px;
  transition: all var(--transition); white-space: nowrap;
}
.contact-trigger-label:hover { background: var(--c-bg-gray); color: var(--c-blue); }
.contact-trigger-label::after {
  content: ''; width: 0; height: 0;
  border-left: 4px solid transparent; border-right: 4px solid transparent;
  border-top: 4px solid currentColor; margin-top: 2px;
}
.contact-dropdown {
  position: absolute; top: calc(100% + 8px); right: 0;
  width: 260px; background: var(--c-white);
  border: 1px solid var(--c-border); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); padding: 16px;
  opacity: 0; visibility: hidden; transform: translateY(-4px);
  transition: all var(--transition); z-index: 100;
}
.contact-trigger:hover .contact-dropdown,
.contact-trigger:focus-within .contact-dropdown {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.cd-region { display: flex; flex-direction: column; gap: 4px; }
.cd-region-title { font-size: 13px; font-weight: 700; color: var(--c-navy); }
.cd-region-title span { font-weight: 500; color: var(--c-text-2); margin-left: 4px; }
.cd-region a { font-size: 13px; color: var(--c-blue); text-decoration: none; word-break: break-all; }
.cd-region a:hover { text-decoration: underline; }
.cd-divider { height: 1px; background: var(--c-border); margin: 10px 0; }
.cd-tag { font-size: 10px; font-weight: 600; color: var(--c-blue); background: var(--c-blue-soft); padding: 2px 6px; border-radius: 4px; line-height: 1; display: inline-block; margin-bottom: 4px; }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  border: 1px solid var(--c-border);
  border-radius: 10px;
  background: var(--c-white);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.nav-toggle svg { width: 20px; height: 20px; stroke: var(--c-navy); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary { background: var(--c-blue); color: #fff; box-shadow: 0 8px 20px rgba(14, 95, 216, 0.28); }
.btn-primary:hover { background: var(--c-navy); color: #fff; transform: translateY(-2px); box-shadow: 0 12px 26px rgba(11, 42, 91, 0.32); }
.btn-outline { border-color: rgba(255, 255, 255, 0.55); color: #fff; }
.btn-outline:hover { background: rgba(255, 255, 255, 0.12); color: #fff; transform: translateY(-2px); }
.btn-outline-dark { border-color: var(--c-navy); color: var(--c-navy); }
.btn-outline-dark:hover { background: var(--c-navy); color: #fff; }
.btn-gold { background: var(--c-gold); color: var(--c-navy-deep); }
.btn-gold:hover { background: #b8921f; color: var(--c-navy-deep); transform: translateY(-2px); }

/* ---------- Hero（首页） ---------- */
.hero {
  position: relative;
  background:
    radial-gradient(1100px 520px at 85% -10%, rgba(14, 95, 216, 0.16), transparent 60%),
    linear-gradient(160deg, #F7FAFF 0%, #EEF4FD 55%, #E7EEFA 100%);
  border-bottom: 1px solid var(--c-border);
  overflow: hidden;
}
.hero-grid {
  background-image:
    linear-gradient(rgba(11, 42, 91, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 42, 91, 0.045) 1px, transparent 1px);
  background-size: 46px 46px;
  position: absolute; inset: 0;
  mask-image: radial-gradient(900px 500px at 50% 0%, #000 30%, transparent 75%);
}
.hero .container {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
  padding-top: 88px;
  padding-bottom: 96px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(14, 95, 216, 0.09);
  border: 1px solid rgba(14, 95, 216, 0.22);
  color: var(--c-blue);
  font-size: 13.5px;
  font-weight: 600;
  margin-bottom: 24px;
}
.hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--c-gold); }
.hero h1 {
  font-size: clamp(32px, 4.6vw, 52px);
  font-weight: 800;
  line-height: 1.22;
  color: var(--c-navy);
  letter-spacing: -0.02em;
}
.hero h1 .accent {
  color: var(--c-blue);
  position: relative;
  white-space: nowrap;
}
.hero h1 .accent::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 4px;
  height: 10px;
  background: rgba(201, 162, 39, 0.28);
  z-index: -1;
  border-radius: 4px;
}
.hero-lead {
  margin-top: 22px;
  font-size: 17.5px;
  color: var(--c-text-2);
  max-width: 560px;
}
.hero-actions { margin-top: 36px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-facts { margin-top: 44px; display: flex; gap: 0; flex-wrap: wrap; }
.hero-fact {
  padding: 6px 28px 6px 0;
  margin-right: 28px;
  border-right: 1px solid var(--c-border);
  padding-right: 28px;
}
.hero-fact:last-child { border-right: 0; margin-right: 0; }
.hero-fact b { display: block; font-size: 26px; color: var(--c-navy); font-weight: 800; line-height: 1.2; }
.hero-fact b em { font-style: normal; color: var(--c-gold); font-size: 18px; }
.hero-fact span { font-size: 13px; color: var(--c-text-3); }

/* Hero 右侧品牌卡 */
.hero-panel { position: relative; }
.hero-card {
  background: var(--c-white);
  border-radius: 20px;
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-lg);
  padding: 30px;
}
.hero-card .card-tag {
  font-size: 12px; font-weight: 700;
  letter-spacing: 0.1em; color: var(--c-gold);
  text-transform: uppercase;
}
.hero-card h2 { font-size: 21px; color: var(--c-navy); margin: 10px 0 6px; line-height: 1.35; }
.hero-card p { color: var(--c-text-2); font-size: 14.5px; }
.hero-card .brand-row {
  display: flex; align-items: center; gap: 14px;
  margin-top: 22px; padding-top: 20px;
  border-top: 1px dashed var(--c-border);
}
.hero-card .brand-row .logo-chip {
  width: 54px; height: 54px; border-radius: 12px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 11px; letter-spacing: -0.01em; color: #fff;
}
.hero-card .brand-row .logo-chip--syensqo { background: linear-gradient(135deg, #0d47a1, #1976d2); }
.hero-card .brand-row .logo-chip--sufu { background: linear-gradient(135deg, var(--c-navy), var(--c-blue)); }
.hero-card .brand-row b { display: block; font-size: 14.5px; color: var(--c-text); }
.hero-card .brand-row small { font-size: 12.5px; color: var(--c-text-3); }

.hero-card .auth-badges { display: flex; gap: 8px; margin-top: 18px; flex-wrap: wrap; }
.hero-card .auth-badges .chip {
  font-size: 12px; font-weight: 600;
  padding: 5px 12px; border-radius: 999px;
  background: var(--c-gold-soft); color: #8a6d13;
  border: 1px solid #ecdcae;
}
.hero-card .auth-badges .chip--blue { background: var(--c-blue-soft); color: var(--c-blue); border-color: #c9dcf7; }

/* ---------- 徽章条（权威背书） ---------- */
.badge-strip { border-bottom: 1px solid var(--c-border); background: var(--c-white); }
.badge-strip .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 26px 24px; }
.badge-strip .item { display: flex; align-items: center; gap: 12px; }
.badge-strip .item .ico {
  width: 46px; height: 46px; border-radius: 12px;
  background: var(--c-bg-gray); border: 1px solid var(--c-border);
  display: flex; align-items: center; justify-content: center;
}
.badge-strip .item .ico svg { width: 24px; height: 24px; stroke: var(--c-blue); }
.badge-strip .item b { display: block; font-size: 14.5px; color: var(--c-text); font-weight: 700; }
.badge-strip .item span { font-size: 12.5px; color: var(--c-text-3); }

/* ---------- 双业务板块 ---------- */
.biz-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.biz-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 40px 38px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}
.biz-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.biz-card::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--c-blue), transparent);
}
.biz-card--powder::before { background: linear-gradient(90deg, var(--c-gold), transparent); }
.biz-card .biz-tag {
  display: inline-block;
  font-size: 12px; font-weight: 700; letter-spacing: 0.1em;
  color: var(--c-blue); text-transform: uppercase;
  background: var(--c-blue-soft);
  padding: 5px 12px; border-radius: 999px;
  margin-bottom: 20px;
}
.biz-card--powder .biz-tag { color: #8a6d13; background: var(--c-gold-soft); }
.biz-card h3 { font-size: 23px; color: var(--c-navy); margin-bottom: 12px; }
.biz-card > p { color: var(--c-text-2); font-size: 15px; margin-bottom: 22px; }
.biz-list li {
  display: flex; gap: 10px; align-items: flex-start;
  padding: 9px 0; border-top: 1px dashed var(--c-border);
  font-size: 14.5px; color: var(--c-text-2);
}
.biz-list li svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 3px; stroke: var(--c-blue); }
.biz-card--powder .biz-list li svg { stroke: var(--c-gold); }
.biz-card .biz-more { margin-top: 24px; display: inline-flex; align-items: center; gap: 6px; font-weight: 600; font-size: 14.5px; }
.biz-card .biz-more svg { width: 15px; height: 15px; }

/* ---------- 产品卡片网格 ---------- */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.product-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition);
}
.product-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: #c3d4f2; }
.product-card .p-ico {
  width: 50px; height: 50px; border-radius: 13px;
  background: var(--c-blue-soft);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.product-card--gold .p-ico { background: var(--c-gold-soft); }
.product-card .p-ico svg { width: 26px; height: 26px; stroke: var(--c-blue); }
.product-card--gold .p-ico svg { stroke: #b8921f; }
.product-card .p-ico img { width: 100%; height: 100%; object-fit: cover; border-radius: 13px; display: block; }
.product-card h3 { font-size: 17.5px; color: var(--c-navy); margin-bottom: 8px; line-height: 1.4; }
.product-card h3 a { color: inherit; }
.product-card h3 a:hover { color: var(--c-blue); }
.product-card .p-sub { font-size: 12px; color: var(--c-text-3); margin-bottom: 10px; font-weight: 600; }
.product-card p { font-size: 13.5px; color: var(--c-text-2); flex: 1; }
.product-card .p-link {
  margin-top: 16px; font-size: 13.5px; font-weight: 600;
  display: inline-flex; align-items: center; gap: 5px;
}

/* ---------- 产品参数表 ---------- */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: var(--c-white);
  box-shadow: var(--shadow-sm);
}
table { width: 100%; border-collapse: collapse; min-width: 760px; }
caption {
  caption-side: top;
  text-align: left;
  padding: 16px 22px;
  font-weight: 700;
  color: var(--c-navy);
  border-bottom: 1px solid var(--c-border);
  background: var(--c-bg-gray);
  font-size: 15px;
}
thead th {
  background: var(--c-navy);
  color: #fff;
  font-weight: 600;
  font-size: 13.5px;
  letter-spacing: 0.02em;
  padding: 13px 18px;
  text-align: left;
  white-space: nowrap;
}
tbody td {
  padding: 13px 18px;
  font-size: 14px;
  color: var(--c-text-2);
  border-top: 1px solid var(--c-border);
  vertical-align: top;
}
tbody tr:nth-child(even) { background: var(--c-bg-gray); }
tbody tr:hover { background: var(--c-blue-soft); }
tbody td:first-child { font-weight: 600; color: var(--c-navy); white-space: nowrap; }
td .dim { color: var(--c-text-3); font-size: 12.5px; }

/* ---------- 行业应用 ---------- */
.industry-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 22px; }
.industry-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: 18px;
  padding: 28px 24px 26px;
  transition: all .35s cubic-bezier(.25,.8,.25,1);
  position: relative;
  overflow: hidden;
}
/* 顶部彩色色带 */
.industry-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 4px;
  border-radius: 18px 18px 0 0;
  transition: height .35s ease;
}
.industry-card:nth-child(1)::before { background: linear-gradient(90deg, #3B82F6, #60A5FA); }
.industry-card:nth-child(2)::before { background: linear-gradient(90deg, #8B5CF6, #A78BFA); }
.industry-card:nth-child(3)::before { background: linear-gradient(90deg, #10B981, #34D399); }
.industry-card:nth-child(4)::before { background: linear-gradient(90deg, #F59E0B, #FBBF24); }
.industry-card:hover::before { height: 6px; }

.industry-card:hover {
  box-shadow: 0 20px 40px rgba(15,23,42,.10);
  transform: translateY(-6px);
  border-color: transparent;
}
.industry-card .i-ico {
  width: 52px; height: 52px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
  transition: transform .35s ease, border-radius .35s ease;
}
.industry-card:nth-child(1) .i-ico { background: linear-gradient(135deg, #EFF6FF, #DBEAFE); }
.industry-card:nth-child(2) .i-ico { background: linear-gradient(135deg, #F5F3FF, #EDE9FE); }
.industry-card:nth-child(3) .i-ico { background: linear-gradient(135deg, #ECFDF5, #D1FAE5); }
.industry-card:nth-child(4) .i-ico { background: linear-gradient(135deg, #FFFBEB, #FEF3C7); }
.industry-card:hover .i-ico { transform: scale(1.08) rotate(-3deg); border-radius: 16px; }

.industry-card .i-ico svg { width: 25px; height: 25px; }
.industry-card:nth-child(1) .i-ico svg { stroke: #3B82F6; }
.industry-card:nth-child(2) .i-ico svg { stroke: #8B5CF6; }
.industry-card:nth-child(3) .i-ico svg { stroke: #10B981; }
.industry-card:nth-child(4) .i-ico svg { stroke: #D97706; }
.industry-card:nth-child(5)::before { background: linear-gradient(90deg, #0EA5E9, #38BDF8); }
.industry-card:nth-child(5) .i-ico { background: linear-gradient(135deg, #F0F9FF, #E0F2FE); }
.industry-card:nth-child(5) .i-ico svg { stroke: #0284C7; }

.industry-card h3 { font-size: 17px; color: var(--c-navy); margin-bottom: 9px; font-weight: 700; }
.industry-card p { font-size: 13.5px; color: var(--c-text-2); line-height: 1.65; }
.industry-card .tag-row { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 7px; }
.industry-card .tag-row span {
  font-size: 11.5px; font-weight: 600;
  padding: 4px 12px; border-radius: 999px;
  border: none;
  transition: all .25s ease;
}
.industry-card:nth-child(1) .tag-row span { background: #EFF6FF; color: #2563EB; }
.industry-card:nth-child(2) .tag-row span { background: #F5F3FF; color: #7C3AED; }
.industry-card:nth-child(3) .tag-row span { background: #ECFDF5; color: #059669; }
.industry-card:nth-child(4) .tag-row span { background: #FFFBEB; color: #B45309; }
.industry-card .tag-row span:hover { transform: translateY(-1px); filter: brightness(.95); }

/* ---------- FAQ ---------- */
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-white);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow-sm); }
/* 隐藏 <details>/<summary> 浏览器默认三角标，避免出现裸 ▶ 乱码 */
.faq-item summary { list-style: none; }
.faq-item summary::marker { display: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::-moz-list-bullet { list-style-type: none; }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: none;
  border: 0;
  cursor: pointer;
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
  text-align: left;
}
.faq-q:hover { color: var(--c-blue); }
.faq-q .faq-icon {
  width: 26px; height: 26px; flex-shrink: 0;
  border-radius: 50%;
  background: var(--c-bg-gray);
  border: 1px solid var(--c-border);
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.faq-q .faq-icon svg { width: 13px; height: 13px; stroke: var(--c-blue); transition: transform var(--transition); }
.faq-item[open] .faq-icon { background: var(--c-blue); border-color: var(--c-blue); }
.faq-item[open] .faq-icon svg { transform: rotate(45deg); stroke: #fff; }
.faq-a { padding: 0 24px 22px; color: var(--c-text-2); font-size: 15px; }
.faq-a p + p { margin-top: 10px; }

/* ---------- 数据对比 / 双栏 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split--reverse .split-media { order: 2; }
.split-media img, .split-media .media-box {
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}
.media-box {
  background: linear-gradient(150deg, var(--c-navy) 0%, var(--c-blue) 130%);
  color: #fff;
  padding: 40px;
  min-height: 340px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.media-box .mb-tag { font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--c-gold); font-weight: 700; margin-bottom: 14px; }
.media-box h3 { font-size: 24px; line-height: 1.4; margin-bottom: 14px; }
.media-box p { color: rgba(255, 255, 255, 0.82); font-size: 14.5px; }
.media-box .mb-stat { display: flex; gap: 30px; margin-top: 26px; padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, 0.18); }
.media-box .mb-stat b { display: block; font-size: 24px; font-weight: 800; }
.media-box .mb-stat span { font-size: 12.5px; color: rgba(255, 255, 255, 0.7); }

.split-content h2 { font-size: clamp(24px, 3vw, 34px); color: var(--c-navy); line-height: 1.3; margin-bottom: 18px; }
.split-content > p { color: var(--c-text-2); margin-bottom: 16px; font-size: 15.5px; }
.split-content .check-list li {
  display: flex; gap: 10px; align-items: flex-start;
  padding: 7px 0; color: var(--c-text-2); font-size: 15px;
}
.split-content .check-list svg { width: 19px; height: 19px; flex-shrink: 0; margin-top: 4px; stroke: var(--c-blue); }

/* 深色背景区域文字对比度修正 */
.section--dark .split-content h2 { color: var(--c-white); }
.section--dark .split-content > p { color: rgba(255, 255, 255, 0.82); }
.section--dark .split-content .check-list li { color: rgba(255, 255, 255, 0.85); }
.section--dark .split-content .check-list svg { stroke: var(--c-gold); }

/* ---------- 内容卡片（文章 / 资质） ---------- */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.info-card { cursor: pointer;
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 28px 26px;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  color: inherit;
}
.info-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); color: inherit; }
.info-card .ic-tag { font-size: 11.5px; font-weight: 700; letter-spacing: 0.08em; color: var(--c-blue); text-transform: uppercase; }
.info-card h3 { font-size: 17px; color: var(--c-navy); margin: 10px 0 8px; line-height: 1.45; }
.info-card .ic-header > p { font-size: 13.5px; color: var(--c-text-2); }

/* 展开/折叠按钮 */
.ic-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  padding: 6px 0;
  font-size: 12.5px;
  color: var(--c-blue);
  font-weight: 600;
  background: none;
  border: none;
  cursor: pointer;
  transition: color .25s ease;
}
.ic-toggle:hover { color: var(--c-navy); }
.ic-toggle span { pointer-events: none; }

/* 展开内容区域 */
.ic-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .4s cubic-bezier(.25,.8,.25,1);
  margin-top: 0;
}
.info-card.is-expanded .ic-body {
  grid-template-rows: 1fr;
  margin-top: 18px;
}
.ic-body-inner {
  overflow: hidden;
}
.ic-body-inner h4 {
  font-size: 14.5px;
  color: var(--c-navy);
  margin: 16px 0 6px;
  font-weight: 700;
}
.ic-body-inner h4:first-child { margin-top: 0; }
.ic-body-inner p {
  font-size: 13.5px;
  color: var(--c-text-2);
  line-height: 1.75;
  margin-bottom: 8px;
}
.ic-body-inner p strong { color: var(--c-navy); }
.ic-toggle--collapse { margin-top: 12px; color: var(--c-text-3); }
.ic-toggle--collapse:hover { color: var(--c-navy); }

/* ---------- 资质徽章 ---------- */
.cred-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.cred-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 26px 22px;
  text-align: center;
  transition: all var(--transition);
  display: flex; flex-direction: column;
}
.cred-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.cred-card .c-ico {
  width: 56px; height: 56px; margin: 0 auto 14px;
  border-radius: 16px;
  background: var(--c-gold-soft);
  display: flex; align-items: center; justify-content: center;
  flex: 0 0 auto;
}
.cred-card .c-ico svg { width: 28px; height: 28px; stroke: #b8921f; }
.cred-card h3 { font-size: 16px; color: var(--c-navy); margin-bottom: 6px; }
.cred-card > p { font-size: 13px; color: var(--c-text-2); flex: 1 1 auto; }

/* 资质卡 · 内置凭证编号/硬数据（about · 替代原独立硬数据带） */
.crt {
  margin-top: 14px;
  padding-top: 13px;
  border-top: 1px dashed #d9e2f0;
  display: flex; flex-direction: column; gap: 7px;
  text-align: left;
}
.crt-top { display: flex; flex-direction: column; align-items: flex-start; gap: 5px; }
.crt-num {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 12.5px; font-weight: 700; letter-spacing: 0.02em;
  color: #fff; background: var(--c-navy);
  padding: 4px 10px; border-radius: 6px;
  word-break: break-all;
}
.crt-tag {
  font-size: 10.5px; font-weight: 700; letter-spacing: 0.06em;
  color: #b8921f; background: var(--c-gold-soft);
  padding: 3px 8px; border-radius: 999px;
  text-transform: uppercase; white-space: nowrap;
}
.crt-sub { font-size: 11.5px; line-height: 1.65; color: var(--c-text-3); }
.crt-link { font-size: 12.5px; font-weight: 700; color: var(--c-blue); margin-top: auto; }
.crt-link:hover { color: #0b3f8f; text-decoration: underline; }

/* ---------- 时间线 ---------- */
.timeline { max-width: 820px; margin: 0 auto; position: relative; padding-left: 34px; }
.timeline::before {
  content: "";
  position: absolute; left: 9px; top: 6px; bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-blue), var(--c-gold));
}
.timeline-item { position: relative; padding-bottom: 40px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: "";
  position: absolute; left: -34px; top: 7px;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--c-white);
  border: 4px solid var(--c-blue);
  box-shadow: 0 0 0 4px rgba(14, 95, 216, 0.12);
}
.timeline-item .tl-year {
  display: inline-block;
  font-size: 13px; font-weight: 800;
  color: var(--c-blue);
  background: var(--c-blue-soft);
  padding: 3px 12px;
  border-radius: 999px;
  margin-bottom: 8px;
}
.timeline-item h3 { font-size: 17px; color: var(--c-navy); margin-bottom: 6px; }
.timeline-item p { font-size: 14.5px; color: var(--c-text-2); }

/* ---------- CTA 区块 ---------- */
.cta-band { text-align: center; }
.cta-band h2 { font-size: clamp(24px, 3.2vw, 36px); margin-bottom: 14px; }
.cta-band p { color: rgba(255, 255, 255, 0.82); max-width: 640px; margin: 0 auto 34px; font-size: 16px; }
.cta-band .cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- 面包屑 ---------- */
.breadcrumb { padding: 18px 0; border-bottom: 1px solid var(--c-border); background: var(--c-bg-gray); }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; font-size: 13.5px; color: var(--c-text-3); }
.breadcrumb li { display: flex; align-items: center; gap: 6px; }
.breadcrumb li + li::before { content: "/"; color: #c6cdda; }
.breadcrumb a { color: var(--c-text-3); }
.breadcrumb a:hover { color: var(--c-blue); }
.breadcrumb [aria-current="page"] { color: var(--c-navy); font-weight: 600; }

/* ---------- 页头（内页） ---------- */
.page-hero {
  background:
    radial-gradient(700px 320px at 12% 110%, rgba(14, 95, 216, 0.10), transparent 60%),
    radial-gradient(500px 280px at 55% 10%, rgba(99, 102, 241, 0.09), transparent 55%),
    radial-gradient(800px 380px at 90% -20%, rgba(14, 95, 216, 0.18), transparent 60%),
    linear-gradient(160deg, #F7FAFF 0%, #EEF4FD 60%, #E7EEFA 100%);
  border-bottom: 1px solid var(--c-border);
  padding: 64px 0 56px;
  position: relative;
  overflow: hidden;
}

/* 装饰性几何图形 */
.page-hero::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 240px;
  height: 240px;
  border: 1.5px solid rgba(14, 95, 216, 0.10);
  border-radius: 50%;
  pointer-events: none;
}
.page-hero::after {
  content: '';
  position: absolute;
  bottom: -40px;
  left: 8%;
  width: 160px;
  height: 160px;
  border: 1.5px solid rgba(99, 102, 241, 0.08);
  border-radius: 50%;
  pointer-events: none;
}

/* 细微网格纹理 */
.page-hero .container {
  position: relative;
  z-index: 1;
}
.page-hero .container::before {
  content: '';
  position: absolute;
  inset: -64px -40px -56px -40px;
  background-image:
    radial-gradient(circle, rgba(14, 95, 216, 0.045) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.35) 0%, rgba(0,0,0,0.08) 100%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,0.35) 0%, rgba(0,0,0,0.08) 100%);
}

/* ---------- 页头装饰层 ---------- */
.page-hero .hero-decor {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

/* 分子结构六边形（呼应材料行业） */
.hd-hex {
  position: absolute;
  top: 22px;
  right: clamp(16px, 12%, 190px);
  width: 86px;
  height: 86px;
  opacity: 0.85;
}

/* 金色柔光（左下） */
.hd-glow {
  position: absolute;
  left: -60px;
  bottom: -90px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201, 162, 39, 0.10) 0%, rgba(201, 162, 39, 0) 62%);
}

/* 漂浮粒子 */
.hd-dot {
  position: absolute;
  border-radius: 50%;
  background: rgba(14, 95, 216, 0.24);
}
.hd-d1 { top: 60px; right: 30%; width: 7px; height: 7px; }
.hd-d2 { bottom: 42px; left: 32%; width: 5px; height: 5px; background: rgba(11, 42, 91, 0.16); }
.hd-d3 { top: 76px; left: 52%; width: 4px; height: 4px; background: rgba(99, 102, 241, 0.28); }
.hd-d4 { bottom: 74px; right: 42%; width: 6px; height: 6px; background: rgba(201, 162, 39, 0.32); }

/* 底部金色细线 */
.hd-line {
  position: absolute;
  left: 50%;
  bottom: -1px;
  transform: translateX(-50%);
  width: min(420px, 55%);
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(201, 162, 39, 0.4), transparent);
}

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 40px; align-items: start; }
.contact-info-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 34px 30px;
}
.contact-info-card h2 { font-size: 20px; color: var(--c-navy); margin-bottom: 22px; }
.contact-row { display: flex; gap: 16px; padding: 16px 0; border-bottom: 1px dashed var(--c-border); }
.contact-row:last-child { border-bottom: 0; }
.contact-row .cr-ico {
  width: 46px; height: 46px; flex-shrink: 0;
  border-radius: 12px;
  background: var(--c-blue-soft);
  display: flex; align-items: center; justify-content: center;
}
.contact-row .cr-ico svg { width: 22px; height: 22px; stroke: var(--c-blue); }
.contact-row b { display: block; font-size: 13px; color: var(--c-text-3); font-weight: 600; margin-bottom: 2px; }
.contact-row .cr-val { font-size: 16px; color: var(--c-text); font-weight: 600; }
.contact-row .cr-val a { color: var(--c-text); }
.contact-row .cr-val a:hover { color: var(--c-blue); }
.contact-row .cr-sub { font-size: 13px; color: var(--c-text-3); }

.contact-managers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 18px; }
.manager-card { background: var(--c-blue-soft); border-radius: 12px; padding: 18px 16px; display: flex; flex-direction: column; justify-content: center; min-height: 130px; }
.manager-card h3 { font-size: 15px; color: var(--c-navy); margin-bottom: 10px; }
.manager-card p { font-size: 14px; color: var(--c-text); margin: 4px 0; white-space: nowrap; }
.manager-card p .label { color: var(--c-text-3); font-size: 13px; }
.manager-card p a { color: var(--c-blue); font-weight: 600; }
.manager-card p a:hover { text-decoration: underline; }
@media (max-width: 1024px) {
  .contact-managers { grid-template-columns: 1fr; }
}

.contact-form-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 38px 34px;
  box-shadow: var(--shadow-sm);
}
.contact-form-card h2 { font-size: 20px; color: var(--c-navy); margin-bottom: 6px; }
.contact-form-card > p { font-size: 14px; color: var(--c-text-3); margin-bottom: 24px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 7px; }
.form-group--full { grid-column: 1 / -1; }
.form-group label { font-size: 13.5px; font-weight: 600; color: var(--c-text); }
.form-group label em { color: #d64545; font-style: normal; }
.form-group input, .form-group select, .form-group textarea {
  font-family: inherit;
  font-size: 15px;
  padding: 12px 15px;
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-bg-gray);
  color: var(--c-text);
  transition: all var(--transition);
  width: 100%;
}
.form-group textarea { resize: vertical; min-height: 110px; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--c-blue);
  background: var(--c-white);
  box-shadow: 0 0 0 4px rgba(14, 95, 216, 0.10);
}
.form-note { font-size: 12.5px; color: var(--c-text-3); margin-top: 14px; }
.form-msg { display: none; margin-top: 14px; padding: 12px 16px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 600; }
.form-msg.ok { display: block; background: #e8f7ee; color: #1a7f45; border: 1px solid #bfe8cf; }
.form-msg.err { display: block; background: #fdecec; color: #c0392b; border: 1px solid #f5c6c6; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--c-navy-deep); color: rgba(255, 255, 255, 0.72); }
.footer-main { display: grid; grid-template-columns: 1.4fr 0.7fr 1.5fr 1.2fr; gap: 40px; padding: 64px 0 48px; }
.footer-brand .brand { margin-bottom: 18px; }
.footer-brand .brand-name strong { color: #fff; }
.footer-brand .brand-name small,
.footer-brand .brand-text span { color: rgba(255, 255, 255, 0.5); letter-spacing: 0.12em; }
.footer-brand > p { font-size: 14px; line-height: 1.8; max-width: 320px; }
.footer-col h3 { font-size: 15px; color: #fff; font-weight: 700; margin-bottom: 20px; letter-spacing: 0.04em; }
.footer-col ul li { margin-bottom: 11px; }
.footer-col ul.footer-products { display: grid; grid-template-columns: 1fr 1fr; column-gap: 26px; }
@media (max-width: 480px) { .footer-col ul.footer-products { grid-template-columns: 1fr; } }
.footer-col a { color: rgba(255, 255, 255, 0.72); font-size: 14px; }
.footer-col a:hover { color: var(--c-gold); }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 14px; font-size: 14px; }
.footer-contact svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 4px; stroke: var(--c-gold); }
.footer-contact a { color: rgba(255, 255, 255, 0.72); }
.footer-contact a:hover { color: var(--c-gold); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 20px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}
.footer-bottom .container { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; align-items: center; }
.footer-bottom a { color: rgba(255, 255, 255, 0.6); }
.footer-bottom a:hover { color: var(--c-gold); }
.footer-bottom .beian { display: flex; gap: 18px; flex-wrap: wrap; }

/* ---------- 滚动进入动画（增强） ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .hd-hex { right: 24px; top: 36px; opacity: 0.55; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .cred-grid { grid-template-columns: repeat(2, 1fr); }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .hero .container { grid-template-columns: 1fr; padding-top: 60px; padding-bottom: 64px; }
  .hero-panel { max-width: 560px; }
  .split { grid-template-columns: 1fr; gap: 36px; }
  .split--reverse .split-media { order: 0; }
  .biz-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .section { padding: 64px 0; }
  .hd-hex, .hd-glow, .hd-d2, .hd-d4 { display: none; }
  .hd-d1 { top: 46px; right: 18px; width: 5px; height: 5px; }
  .hd-d3 { top: auto; bottom: 50px; left: 16px; width: 4px; height: 4px; }
  .topbar .container { justify-content: center; text-align: center; }
  .topbar .topbar-meta { gap: 14px; flex-wrap: wrap; justify-content: center; }
  .main-nav {
    position: fixed;
    top: 0; right: 0; bottom: 0;
    width: min(320px, 82vw);
    background: var(--c-white);
    box-shadow: -10px 0 40px rgba(11, 42, 91, 0.15);
    padding: 96px 28px 28px;
    transform: translateX(100%);
    transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 120;
  }
  .main-nav.open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; gap: 4px; }
  .main-nav a { padding: 13px 16px; font-size: 16px; border-radius: 10px; }
  .nav-toggle { display: flex; }
  .contact-trigger { display: none; }
  .nav-overlay {
    position: fixed; inset: 0;
    background: rgba(7, 28, 63, 0.45);
    backdrop-filter: blur(2px);
    z-index: 110;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
  }
  .nav-overlay.show { opacity: 1; pointer-events: auto; }
  .hero-fact { padding-right: 18px; margin-right: 18px; }
  .hero-fact b { font-size: 22px; }
  .product-grid, .industry-grid, .cred-grid, .card-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; gap: 32px; }
}

/* 无障碍：焦点可见 */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid rgba(14, 95, 216, 0.45);
  outline-offset: 2px;
}

.card-grid-more { display: flex; justify-content: center; margin-top: 32px; }

/* ---------- 按钮补充 ---------- */
.btn-ghost {
  background: transparent;
  color: var(--c-navy);
  border: 1.5px solid rgba(11, 42, 91, 0.25);
}
.btn-ghost:hover { border-color: var(--c-blue); color: var(--c-blue); transform: translateY(-2px); }
.article-cta .btn-ghost { border-color: rgba(255, 255, 255, 0.4); color: #fff; }
.article-cta .btn-ghost:hover { border-color: #fff; color: #fff; }

/* ---------- 技术文章：列表页 ---------- */
.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
/* 无障碍：仅供屏幕阅读器的隐藏标签 */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.article-card {
  display: flex;
  flex-direction: column;
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: 18px;
  padding: 28px 26px;
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.article-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: rgba(14, 95, 216, 0.35);
}
.article-card .ac-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.article-card .ac-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--c-blue-soft);
  color: var(--c-blue);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.article-card time { font-size: 12.5px; color: var(--c-text-3); }
.article-card h2 { font-size: 17.5px; line-height: 1.5; color: var(--c-navy); }
.article-card p { margin-top: 12px; font-size: 14px; color: var(--c-text-2); flex: 1; }
.article-card .ac-more { margin-top: 18px; font-size: 14px; font-weight: 600; color: var(--c-blue); }
.article-card:hover .ac-more { text-decoration: underline; }

/* 分层文章列表：精选大卡 + 紧凑行 */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 44px; }
.article-feature {
  display: flex; flex-direction: column;
  background: var(--c-white); border: 1px solid var(--c-border);
  border-radius: 18px; overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.article-feature:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: rgba(14, 95, 216, 0.35); }
.article-feature .af-cover { aspect-ratio: 1200 / 630; overflow: hidden; background: var(--c-blue-soft); }
.article-feature .af-cover img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .4s ease; }
.article-feature:hover .af-cover img { transform: scale(1.04); }
.article-feature .af-body { display: flex; flex-direction: column; flex: 1; padding: 20px 24px 24px; }
.article-feature .ac-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.article-feature .ac-tag {
  display: inline-block; padding: 4px 12px; border-radius: 999px;
  background: var(--c-blue-soft); color: var(--c-blue); font-size: 12px; font-weight: 600;
}
.article-feature time { font-size: 12.5px; color: var(--c-text-3); }
.article-feature h3 { font-size: 17.5px; line-height: 1.5; color: var(--c-navy); }
.article-feature p { margin-top: 10px; font-size: 14px; color: var(--c-text-2); flex: 1; }
.article-feature .ac-more { margin-top: 14px; font-size: 14px; font-weight: 600; color: var(--c-blue); }
.article-feature:hover .ac-more { text-decoration: underline; }
.rows-title { font-size: 20px; color: var(--c-navy); margin: 0 0 14px; }
.article-rows { display: flex; flex-direction: column; border-top: 1px solid var(--c-border); }
.article-row {
  display: flex; align-items: center; gap: 18px;
  padding: 17px 8px; border-bottom: 1px solid var(--c-border);
  transition: background .2s ease;
}
.article-row:hover { background: rgba(14, 95, 216, 0.04); }
.article-row .ac-tag {
  flex-shrink: 0; padding: 4px 12px; border-radius: 999px;
  background: var(--c-blue-soft); color: var(--c-blue); font-size: 12px; font-weight: 600;
}
.article-row time { flex-shrink: 0; width: 86px; font-size: 13px; color: var(--c-text-3); }
.article-row h3 { flex: 1; font-size: 15.5px; font-weight: 600; color: var(--c-navy); line-height: 1.5; }
.article-row .ar-arrow { flex-shrink: 0; color: var(--c-blue); font-weight: 600; transition: transform .2s ease; }
.article-row:hover .ar-arrow { transform: translateX(4px); }
@media (max-width: 960px) {
  .feature-grid { grid-template-columns: 1fr; }
  .article-row { flex-wrap: wrap; row-gap: 6px; }
  .article-row h3 { flex-basis: 100%; order: 3; }
  .article-row .ar-arrow { margin-left: auto; }
}

/* 文章页 CTA 卡片 */
.article-cta {
  margin-top: 56px;
  padding: 40px 36px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--c-navy) 0%, #123C7E 100%);
  color: #fff;
  text-align: center;
}
.article-cta h2 { font-size: 24px; margin-bottom: 12px; }
.article-cta p { color: rgba(255, 255, 255, 0.82); max-width: 640px; margin: 0 auto 26px; font-size: 15px; }
.article-cta .ac-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- 技术文章：文章页 ---------- */
.article-wrap { max-width: 820px; margin: 0 auto; padding: 72px 24px 96px; }
.article-head { border-bottom: 1px solid var(--c-border); padding-bottom: 28px; }
.article-head .ac-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--c-blue-soft);
  color: var(--c-blue);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.article-head h1 { font-size: clamp(26px, 3.4vw, 36px); color: var(--c-navy); font-weight: 800; line-height: 1.35; margin: 16px 0 14px; }
.article-lead { font-size: 16.5px; color: var(--c-text-2); }
.article-lead strong { color: var(--c-navy); }
.article-meta { display: flex; gap: 20px; margin-top: 18px; font-size: 13px; color: var(--c-text-3); }

.article-body { padding-top: 36px; }
.article-body h2 { font-size: 22px; color: var(--c-navy); line-height: 1.4; margin: 38px 0 16px; padding-left: 14px; border-left: 4px solid var(--c-blue); }
.article-body h2:first-child { margin-top: 0; }
.article-body h3 { font-size: 17px; color: var(--c-navy); margin: 26px 0 10px; }
.article-body p { color: var(--c-text-2); margin-bottom: 14px; font-size: 15.5px; }
.article-body p strong { color: var(--c-navy); }
.article-body ul { margin: 0 0 16px 2px; padding-left: 20px; list-style: none; }
.article-body ul li { position: relative; color: var(--c-text-2); font-size: 15.5px; margin-bottom: 10px; padding-left: 8px; }
.article-body ul li::before {
  content: '';
  position: absolute;
  left: -14px;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--c-gold);
}
.article-body ul li strong { color: var(--c-navy); }
.article-body a { color: var(--c-blue); text-decoration: underline; text-underline-offset: 3px; }
.article-body .table-wrap { margin: 22px 0 26px; }

/* 文章正文数据表辅助类（GEO：数据表是 AI 引擎高价值引用源） */
.article-body table th.t-r, .article-body table td.t-r { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.article-body table th.t-c, .article-body table td.t-c { text-align: center; }
.article-body table td sup { font-size: 11px; }
.article-body sup { font-size: 12px; color: var(--c-blue); }
.article-body .article-note { margin-top: 26px; padding: 16px 18px; border-left: 4px solid var(--c-gold); background: var(--c-gold-soft); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; font-size: 14px; color: var(--c-text-2); }
.article-body .article-note strong { color: var(--c-navy); }

/* 文章上下导航 */
.article-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 40px;
}
.article-nav a {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 22px;
  border: 1px solid var(--c-border);
  border-radius: 14px;
  text-decoration: none;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.article-nav a:hover { border-color: rgba(14, 95, 216, 0.4); box-shadow: var(--shadow-sm); transform: translateY(-3px); }
.article-nav a span { font-size: 12.5px; color: var(--c-text-3); letter-spacing: 0.05em; }
.article-nav a strong { font-size: 15px; color: var(--c-navy); line-height: 1.45; }
.article-nav .an-back { text-align: right; align-items: flex-end; }

@media (max-width: 1024px) {
  .article-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .article-grid { grid-template-columns: 1fr; }
  .article-nav { grid-template-columns: 1fr; }
  .article-nav .an-back { text-align: left; align-items: flex-start; }
  .article-wrap { padding: 48px 18px 72px; }
}

/* =========================================================
   GEO 内链闭环 & 行业应用页组件
   ========================================================= */

/* 相关产品 / 相关行业 / 相关文章 互链小模块 */
.related-block {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-top: 22px;
  padding: 13px 16px;
  background: var(--c-bg-gray);
  border-left: 3px solid var(--c-blue);
  border-radius: 10px;
  font-size: 13px;
}
.related-block .rb-label {
  font-weight: 700;
  color: var(--c-navy);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.related-block .rb-tags { display: inline-flex; flex-wrap: wrap; gap: 6px 4px; }
.related-block .rb-tags a {
  color: var(--c-blue);
  text-decoration: none;
  border-bottom: 1px dashed rgba(14, 95, 216, 0.4);
  padding-bottom: 1px;
  transition: all var(--transition);
}
.related-block .rb-tags a:hover { border-bottom-color: var(--c-blue); color: #0b3f8f; }
.related-block .rb-sep { width: 1px; height: 14px; background: var(--c-border); }

/* 首页行业卡片「查看行业方案」入口 */
.industry-card .i-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 15px;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-blue);
  text-decoration: none;
  transition: gap var(--transition), color var(--transition);
}
.industry-card .i-more:hover { gap: 8px; color: #0b3f8f; }



/* 材料详情：项目实拍双图 */
.app-photos { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 18px 0 4px; clear: both; }
.app-photos figure { margin: 0; border-radius: 12px; overflow: hidden; border: 1px solid var(--c-border); box-shadow: var(--shadow-sm); background: #fff; }
.app-photos img { width: 100%; height: 200px; object-fit: cover; display: block; }
.app-photos figcaption { font-size: 12px; font-weight: 600; color: var(--c-text-2); text-align: center; padding: 7px 8px; background: #F6F9FE; border-top: 1px solid var(--c-border); }
@media (max-width: 640px) { .app-photos { grid-template-columns: 1fr; } .app-photos img { height: 220px; } }

/* 材料详情区块配图（右浮动环绕） */
.biz-photo {
  float: right;
  width: 250px;
  margin: 4px 0 16px 24px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-md);
  background: #fff;
}
.biz-photo img { width: 100%; height: 175px; object-fit: cover; display: block; }
.biz-photo figcaption {
  font-size: 12px; font-weight: 700; color: var(--c-navy);
  text-align: center; padding: 7px 8px; background: #F6F9FE;
  border-top: 1px solid var(--c-border); letter-spacing: 0.02em;
}
@media (max-width: 640px) {
  .biz-photo { float: none; width: 100%; margin: 0 0 16px; }
  .biz-photo img { height: 210px; }
}


/* 行业页 hero 实景图变体（多重背景方案，不占用伪元素，避免与圆形装饰冲突） */
.page-hero.hero-photo {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(115deg, rgba(7,28,62,0.80) 0%, rgba(7,28,62,0.58) 50%, rgba(9,36,78,0.42) 100%),
    var(--hero-img) center/cover no-repeat #071C3F;
  border-bottom-color: rgba(255,255,255,0.14);
}
.page-hero.hero-photo::before,
.page-hero.hero-photo::after { content: none !important; }
.page-hero.hero-photo .container::before { content: none; }
.page-hero.hero-photo .container { position: relative; z-index: 2; }
.page-hero.hero-photo h1 { color: #fff; }
.page-hero.hero-photo p { color: rgba(255,255,255,0.88); }
.page-hero.hero-photo .hero-decor { display: none; }
.page-hero.hero-photo .industry-hero-links a { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.28); color: #fff; box-shadow: none; }
.page-hero.hero-photo .industry-hero-links a svg { stroke: #9CC3FF; }
.page-hero.hero-photo .industry-hero-links a .ihl-arrow { stroke: rgba(255,255,255,0.75); }
.page-hero.hero-photo .industry-hero-links a:hover { background: rgba(255,255,255,0.22); color: #fff; box-shadow: 0 8px 22px rgba(0,0,0,0.3); }
.page-hero.hero-photo .industry-hero-links a:hover .ihl-arrow { stroke: #fff; }
.page-hero.hero-photo .industry-hero-links a:hover svg { stroke: #fff; }

/* 行业页 hero 内嵌其他行业板块 */
.industry-hero-links { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 30px; position: relative; z-index: 1; }
.industry-hero-links a {
  display: flex; align-items: center; gap: 10px;
  padding: 15px 16px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.95);
  border-radius: 12px;
  color: var(--c-navy);
  font-size: 14.5px;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 2px 10px rgba(14, 95, 216, 0.08);
  transition: all var(--transition);
}
.industry-hero-links a svg { width: 20px; height: 20px; stroke: var(--c-blue); flex: 0 0 auto; }
.industry-hero-links a .ihl-arrow { width: 15px; height: 15px; margin-left: auto; stroke: var(--c-text-3); transition: transform var(--transition), stroke var(--transition); }
.industry-hero-links a:hover { background: #fff; transform: translateY(-3px); box-shadow: 0 8px 22px rgba(14, 95, 216, 0.16); color: var(--c-blue); }
.industry-hero-links a:hover .ihl-arrow { transform: translateX(3px); stroke: var(--c-blue); }
@media (max-width: 900px) { .industry-hero-links { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .industry-hero-links { grid-template-columns: 1fr; } }

/* 行业页特性卡片 */
.scene-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.scene-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 24px 22px;
  transition: all var(--transition);
}
.scene-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.scene-card .sc-ico {
  width: 46px; height: 46px;
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #EFF6FF, #DBEAFE);
  border-radius: 12px;
  margin-bottom: 14px;
}
.scene-card .sc-ico svg { width: 22px; height: 22px; stroke: var(--c-blue); }
.scene-card h3 { font-size: 16px; color: var(--c-navy); margin-bottom: 8px; }
.scene-card p { font-size: 13.5px; color: var(--c-text-2); line-height: 1.65; }
.scene-card .sc-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.scene-card .sc-tags span { font-size: 11px; font-weight: 600; color: var(--c-blue); background: var(--c-blue-soft); padding: 3px 8px; border-radius: 6px; }

/* ===== 应用案例：客户 logo 墙 ===== */
.client-wall { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.client-wall li { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; padding: 22px 12px; background: #fff; border: 1px solid var(--c-border); border-radius: 14px; transition: transform .2s, box-shadow .2s, border-color .2s; }
.client-wall li:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: #c3d4f2; }
.client-wall .cw-ico { width: 46px; height: 46px; display: inline-flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #EFF6FF, #DBEAFE); border-radius: 12px; }
.client-wall .cw-ico svg { width: 22px; height: 22px; stroke: var(--c-blue); }
.client-wall .cw-name { font-size: 19px; font-weight: 800; color: var(--c-navy); letter-spacing: 0.01em; }
.client-wall .cw-cat { font-size: 12px; color: var(--c-text-3); font-weight: 600; }

/* ===== 应用案例：5 卡片网格 ===== */
.case-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.case-card { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--c-border); border-radius: 14px; padding: 22px 20px; transition: transform .2s, box-shadow .2s, border-color .2s; }
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: #c3d4f2; }
.case-card .cc-tag { display: inline-block; font-size: 11.5px; font-weight: 700; letter-spacing: 0.08em; color: var(--c-blue); background: var(--c-blue-soft); padding: 4px 10px; border-radius: 6px; text-transform: uppercase; align-self: flex-start; }
.case-card h3 { font-size: 16px; color: var(--c-navy); margin: 12px 0 10px; line-height: 1.45; }
.case-card h3 a { color: inherit; }
.case-card h3 a:hover { color: var(--c-blue); }
.case-card .cc-customer { font-size: 12.5px; color: var(--c-text-3); font-weight: 600; margin-bottom: 8px; }
.case-card .cc-keydata { font-size: 13px; color: var(--c-text-2); flex: 1; line-height: 1.55; }
.case-card .cc-keydata b { color: var(--c-blue); font-size: 16px; font-weight: 800; }
.case-card .cc-link { display: inline-block; margin-top: 14px; font-size: 13.5px; font-weight: 700; color: var(--c-blue); }
.case-card .cc-link:hover { color: #0b3f8f; }

/* 案例区 CTA 卡（第 6 张 · 中亮蓝 · 凑满 3×2 网格 · 轻盈不沉闷） */
.case-card--cta {
  background: linear-gradient(145deg, #1A5DC8 0%, #2E79E8 55%, #4B9AFF 100%);
  border: none;
  justify-content: center;
  align-items: flex-start;
  color: #fff;
}
.case-card--cta:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 34px rgba(14, 95, 216, 0.26);
  border: none;
}
.case-card--cta .cc-cta-ico {
  display: inline-flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.20);
  color: #fff; margin-bottom: 14px;
}
.case-card--cta .cc-cta-ico svg { width: 20px; height: 20px; }
.case-card--cta .cc-cta-kicker {
  display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.82); text-transform: uppercase; margin-bottom: 10px;
}
.case-card--cta h3 { color: #fff; margin: 0 0 10px; font-size: 17px; }
.case-card--cta p { color: rgba(255, 255, 255, 0.86); font-size: 13px; line-height: 1.6; }
.case-card--cta .cc-cta-link {
  display: inline-flex; align-items: center; gap: 6px; margin-top: 16px;
  font-size: 13.5px; font-weight: 700; color: #fff;
  background: rgba(255, 255, 255, 0.20); border: 1px solid rgba(255, 255, 255, 0.28);
  padding: 8px 15px; border-radius: 8px; transition: background var(--transition);
}
.case-card--cta .cc-cta-link:hover { background: rgba(255, 255, 255, 0.32); color: #fff; }

/* ===== 应用案例：详情区 ===== */
.case-detail { max-width: 980px; margin: 0 auto; }
.case-detail .case-head { margin-bottom: 28px; padding-bottom: 22px; border-bottom: 1px solid var(--c-border); }
.case-detail .case-head .cc-tag { display: inline-block; font-size: 11.5px; font-weight: 700; letter-spacing: 0.08em; color: var(--c-blue); background: var(--c-blue-soft); padding: 4px 10px; border-radius: 6px; text-transform: uppercase; margin-bottom: 12px; }
.case-detail .case-head h2 { font-size: 26px; color: var(--c-navy); line-height: 1.4; margin-bottom: 10px; }
.case-detail .case-head .case-meta { font-size: 13px; color: var(--c-text-3); }
.case-detail .case-head .case-meta a { color: var(--c-blue); font-weight: 600; }
.case-detail .case-block { margin: 26px 0; }
.case-detail .case-block h3 { font-size: 18px; color: var(--c-navy); margin-bottom: 12px; padding-left: 12px; border-left: 3px solid var(--c-blue); }
.case-detail .case-block p { font-size: 15px; line-height: 1.85; color: var(--c-text-2); margin-bottom: 10px; }
.case-detail .case-block ul { padding-left: 22px; margin: 8px 0; }
.case-detail .case-block ul li { font-size: 14.5px; line-height: 1.85; color: var(--c-text-2); margin-bottom: 6px; }
.case-detail .case-block ul li strong { color: var(--c-navy); }
.case-detail .case-block a { color: var(--c-blue); font-weight: 600; border-bottom: 1px dashed var(--c-blue); }
.case-detail .case-block a:hover { color: #0b3f8f; border-bottom-color: #0b3f8f; }
.case-crosslink { margin-top: 16px; padding-top: 14px; border-top: 1px dashed var(--c-border); font-size: 13.5px; color: var(--c-text-3); }
.case-crosslink a { color: var(--c-blue); font-weight: 700; }
.case-crosslink a:hover { color: #0b3f8f; }

@media (max-width: 1024px) {
  .scene-grid { grid-template-columns: repeat(2, 1fr); }
  .client-wall { grid-template-columns: repeat(3, 1fr); }
  .case-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 720px) {
  .scene-grid { grid-template-columns: 1fr; }
  .related-block { align-items: flex-start; flex-direction: column; gap: 6px; }
  .client-wall { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: 1fr; }
  .case-detail .case-head h2 { font-size: 22px; }
}

/* ---------- 资质认证页 · 核心数据指标 ---------- */
.cred-stat {
  background: linear-gradient(180deg, #f7faff 0%, var(--c-white) 100%);
  border: 1px solid var(--c-border);
  border-top: 3px solid var(--c-blue);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: all var(--transition);
}
.cred-stat:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-top-color: var(--c-gold); }
.cred-stat-num {
  font-size: 30px; font-weight: 800; color: var(--c-blue);
  letter-spacing: -0.02em; line-height: 1.1;
  margin-bottom: 12px; word-break: break-all;
}
.cred-stat-num b { font-size: 28px; }
.cred-stat-num span { font-size: 14px; font-weight: 600; color: var(--c-text-3); margin-left: 4px; }
.cred-stat h3 { font-size: 15px; color: var(--c-navy); margin-bottom: 8px; }
.cred-stat p { font-size: 13px; line-height: 1.75; color: var(--c-text-2); }
.cred-stat p b { color: var(--c-navy); }

/* ---------- 资质表 ---------- */
.cred-table-wrap { overflow-x: auto; border: 1px solid var(--c-border); border-radius: var(--radius); background: var(--c-white); }
.cred-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.cred-table thead { background: var(--c-navy); color: #fff; }
.cred-table th, .cred-table td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--c-border); vertical-align: top; }
.cred-table th { font-weight: 700; white-space: nowrap; }
.cred-table td b { color: var(--c-navy); }
.cred-table tbody tr:hover { background: #fafbfd; }
.cred-table tbody tr:last-child td { border-bottom: none; }

/* ---------- Syensqo 授权证书卡 ---------- */
.cert-card {
  background: linear-gradient(135deg, #f7faff 0%, #fff8e6 100%);
  border: 1px solid var(--c-border);
  border-left: 4px solid var(--c-gold);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}
.cert-card-header {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 16px; flex-wrap: wrap; padding-bottom: 18px;
  border-bottom: 1px dashed var(--c-border); margin-bottom: 18px;
}
.cert-card-header h3 { font-size: 19px; color: var(--c-navy); }
.cert-card-num {
  background: #fff; border: 1px solid var(--c-gold);
  border-radius: 8px; padding: 10px 14px;
  text-align: center; font-size: 12px; color: var(--c-text-3);
  white-space: nowrap;
}
.cert-card-num b { display: block; font-size: 18px; color: var(--c-gold-dark); margin-top: 2px; letter-spacing: 0.02em; }
.cert-status {
  display: inline-block;
  padding: 4px 12px; border-radius: 999px;
  background: #ecfdf5; color: #059669; font-size: 12px; font-weight: 700;
  margin-bottom: 8px;
}
.cert-card-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px 28px; margin: 0; }
.cert-card-grid > div { padding: 0; }
.cert-card-grid dt { font-size: 12px; color: var(--c-text-3); font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 4px; }
.cert-card-grid dd { font-size: 14px; color: var(--c-navy); line-height: 1.7; margin: 0; }
.cert-card-grid dd b { color: var(--c-blue); }
.cert-pill {
  display: inline-block;
  padding: 3px 10px; margin: 2px 4px 2px 0;
  border-radius: 999px;
  background: rgba(15, 75, 168, 0.08);
  color: var(--c-blue); font-size: 12.5px; font-weight: 600;
}
.cert-card-foot { margin-top: 18px; padding-top: 16px; border-top: 1px dashed var(--c-border); font-size: 12.5px; color: var(--c-text-3); line-height: 1.7; }

/* ---------- 知识产权卡组 ---------- */
.cred-card-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.cred-ip-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 22px 22px 20px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.cred-ip-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: linear-gradient(180deg, var(--c-blue), var(--c-gold));
}
.cred-ip-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.cred-ip-num {
  display: inline-block;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px; font-weight: 700;
  background: var(--c-navy); color: #fff;
  padding: 4px 10px; border-radius: 6px;
  margin-bottom: 12px; letter-spacing: 0.02em;
}
.cred-ip-card h3 { font-size: 15.5px; color: var(--c-navy); margin-bottom: 8px; line-height: 1.5; }
.cred-ip-card p { font-size: 13px; color: var(--c-text-2); line-height: 1.75; }
.cred-ip-status {
  display: inline-block;
  margin-top: 12px;
  padding: 3px 10px; border-radius: 999px;
  background: rgba(15, 75, 168, 0.08); color: var(--c-blue);
  font-size: 11.5px; font-weight: 600;
}

@media (max-width: 1011px) {
  .cert-card-grid { grid-template-columns: 1fr; }
  .cred-card-grid { grid-template-columns: 1fr; }
  .cred-card-header { flex-direction: column; }
}
/* ---------- 中型应用扩展（cases.html） ---------- */
.midapp-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.midapp-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 22px 24px;
  position: relative;
  transition: all var(--transition);
  border-left: 4px solid var(--c-blue);
}
.midapp-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-left-color: var(--c-gold); }
.midapp-card .ma-tag {
  display: inline-block;
  padding: 3px 10px; border-radius: 999px;
  background: rgba(15, 75, 168, 0.08); color: var(--c-blue);
  font-size: 11.5px; font-weight: 600;
  margin-bottom: 10px;
}
.midapp-card h3 { font-size: 16px; color: var(--c-navy); margin-bottom: 6px; }
.midapp-card .ma-customer { font-size: 12.5px; color: var(--c-text-3); margin-bottom: 14px; padding-bottom: 12px; border-bottom: 1px dashed var(--c-border); }
.midapp-card .ma-data { margin: 0; display: grid; gap: 12px; }
.midapp-card .ma-data > div { padding: 0; }
.midapp-card .ma-data dt { font-size: 11.5px; font-weight: 700; color: var(--c-text-3); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 4px; }
.midapp-card .ma-data dd { font-size: 13px; line-height: 1.7; color: var(--c-text); margin: 0; }
.midapp-card .ma-data dd b { color: var(--c-navy); }
.midapp-card .ma-data dd a { color: var(--c-blue); font-weight: 600; }
.midapp-card .ma-data dd a:hover { color: #0b3f8f; text-decoration: underline; }
.midapp-foot { margin-top: 22px; font-size: 13px; color: var(--c-text-3); text-align: center; }

/* ---------- 首页权威背书数据卡组 ---------- */
.cred-stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.cred-stat-link { display: inline-block; margin-top: 14px; font-size: 13px; color: var(--c-blue); font-weight: 600; }
.cred-stat-link:hover { color: #0b3f8f; text-decoration: underline; }

@media (max-width: 1011px) {
  .midapp-grid { grid-template-columns: 1fr; }
}
/* ---------- products.html 各段"相关认证/专利"行 ---------- */
.cred-line {
  margin: 14px 0 0;
  padding: 12px 16px;
  background: linear-gradient(90deg, #fff8e6 0%, #f7faff 100%);
  border: 1px solid #f3e2b3;
  border-left: 3px solid var(--c-gold);
  border-radius: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-text-2);
}
.cred-line .cl-label {
  display: inline-block;
  font-weight: 700;
  color: var(--c-gold-dark);
  margin-right: 8px;
  font-size: 12.5px;
}
.cred-line .cl-tags b { color: var(--c-blue); font-weight: 700; }
.cred-line .cl-tags b:hover { color: #0b3f8f; }

@media (max-width: 720px) {
  .cred-line { font-size: 12.5px; padding: 10px 12px; }
  .cred-line .cl-label { display: block; margin-bottom: 4px; margin-right: 0; }
}

/* ---------- 行业方案导航条（产品页 · 轻量入口，替代大块行业矩阵） ---------- */
.ind-nav { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.ind-nav-item {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 22px 18px;
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}
.ind-nav-item::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--c-blue), transparent);
  transition: height var(--transition);
}
.ind-nav-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: #c3d4f2;
}
.ind-nav-item:hover::before { height: 5px; }
.ind-nav-item:nth-child(1)::before { background: linear-gradient(90deg, #3B82F6, #60A5FA); }
.ind-nav-item:nth-child(2)::before { background: linear-gradient(90deg, #8B5CF6, #A78BFA); }
.ind-nav-item:nth-child(3)::before { background: linear-gradient(90deg, #10B981, #34D399); }
.ind-nav-item:nth-child(4)::before { background: linear-gradient(90deg, #F59E0B, #FBBF24); }
.ind-nav-item:nth-child(5)::before { background: linear-gradient(90deg, #0EA5E9, #38BDF8); }
.ind-nav-item .ind-num {
  font-size: 12px; font-weight: 800; letter-spacing: 0.08em;
  color: var(--c-blue);
}
.ind-nav-item:nth-child(2) .ind-num { color: #8B5CF6; }
.ind-nav-item:nth-child(3) .ind-num { color: #10B981; }
.ind-nav-item:nth-child(4) .ind-num { color: #D97706; }
.ind-nav-item:nth-child(5) .ind-num { color: #0284C7; }
.ind-nav-item .ind-name { font-size: 16px; font-weight: 700; color: var(--c-navy); line-height: 1.3; }
.ind-nav-item .ind-desc { font-size: 12.5px; line-height: 1.6; color: var(--c-text-2); }
@media (max-width: 1011px) {
  .ind-nav { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .ind-nav { grid-template-columns: 1fr; gap: 12px; }
}
.section--nav { padding-top: 4px; }
#conductive-powders { padding-bottom: 44px; }

/* ===== 按需求关键词找材料（products.html 顶部 chip 云） ===== */
.section--needs {
  background: linear-gradient(180deg, #ffffff 0%, var(--c-bg-gray) 100%);
  padding: 56px 0 44px;
  border-top: 1px solid var(--c-border);
}
.section--needs .needs-head {
  text-align: center;
  margin-bottom: 28px;
}
.section--needs .needs-eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--c-blue);
  text-transform: uppercase;
  margin-bottom: 8px;
  padding: 4px 12px;
  background: var(--c-blue-soft);
  border-radius: 999px;
}
.section--needs .needs-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--c-navy);
  margin: 0 0 10px;
  line-height: 1.25;
}
.section--needs .needs-sub {
  color: var(--c-text-2);
  font-size: 14.5px;
  margin: 0;
}
.section--needs .needs-cloud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 10px;
  list-style: none;
  padding: 0;
  margin: 0;
  max-width: 980px;
  margin-left: auto;
  margin-right: auto;
}
.section--needs .needs-cloud li { margin: 0; }
.section--needs .need-chip {
  display: inline-flex;
  align-items: center;
  height: 38px;
  padding: 0 18px;
  border: 1.5px solid var(--c-border);
  border-radius: 999px;
  background: #fff;
  color: var(--c-text);
  font-size: 14.5px;
  font-weight: 600;
  text-decoration: none;
  transition: transform .15s ease, background .2s ease, border-color .2s ease, color .2s ease, box-shadow .2s ease;
}
.section--needs .need-chip:hover {
  background: var(--c-blue);
  border-color: var(--c-blue);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(14, 95, 216, 0.22);
}
.section--needs .need-chip:focus-visible {
  outline: 3px solid var(--c-blue-soft);
  outline-offset: 2px;
}
@media (max-width: 720px) {
  .section--needs { padding: 40px 0 32px; }
  .section--needs .needs-title { font-size: 22px; }
  .section--needs .need-chip { height: 34px; padding: 0 14px; font-size: 13.5px; }
}