/* ===== 瓷佳木美 · 企业官网设计系统 v2 ===== */
:root {
  /* —— 品牌主色：深蓝为骨、青为脉 —— */
  --navy: #0b1f3f;
  --navy-2: #102b55;
  --navy-3: #16386b;
  --blue: #1b4fc4;
  --blue-600: #1743a8;
  --blue-700: #123680;
  --cyan: #0aa7bd;
  --cyan-dark: #07808f;
  --cyan-soft: #e4f5f9;

  /* —— 中性色阶：更大对比度，正文不再发灰 —— */
  --ink: #0d1b30;
  --text: #33455e;
  --muted: #64748b;
  --faint: #94a3b8;
  --bg: #ffffff;
  --bg-2: #f5f8fc;
  --bg-3: #eef3fa;
  --white: #ffffff;
  --border: #e2e9f2;
  --border-strong: #cfdae8;

  --violet: #5b6cff;

  /* —— 渐变与光效：更强的品牌存在感 —— */
  --grad-brand: linear-gradient(118deg, #1b4fc4 0%, #2f7bff 48%, #0aa7bd 100%);
  --grad-deep: linear-gradient(140deg, #0b1f3f 0%, #16386b 55%, #0e5a78 100%);
  --grad-soft: linear-gradient(135deg, #eef3ff 0%, #e4f5f9 100%);
  --glow-blue: rgba(27, 79, 196, .30);
  --glow-cyan: rgba(10, 167, 189, .26);

  /* —— 阴影：多层叠加，更立体 —— */
  --shadow-sm: 0 1px 3px rgba(13, 27, 48, .05), 0 4px 12px rgba(13, 27, 48, .05);
  --shadow: 0 4px 10px rgba(13, 27, 48, .05), 0 16px 36px rgba(13, 27, 48, .09);
  --shadow-lg: 0 8px 20px rgba(13, 27, 48, .07), 0 30px 64px rgba(13, 27, 48, .14);
  --shadow-brand: 0 10px 30px rgba(27, 79, 196, .24);

  /* —— 圆角 —— */
  --radius: 18px;
  --radius-sm: 12px;
  --radius-lg: 26px;

  --maxw: 1240px;
  --nav-h: 72px;
  --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", -apple-system,
    BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.78;
  -webkit-font-smoothing: antialiased;
  /* 极淡的品牌网格底纹，给白底页面一点"设计感" */
  background-image:
    linear-gradient(rgba(27, 79, 196, .022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27, 79, 196, .022) 1px, transparent 1px);
  background-size: 72px 72px;
}
h1, h2, h3, h4 { color: var(--ink); line-height: 1.28; margin: 0 0 .5em; font-weight: 800; letter-spacing: -.3px; }
h1 { font-size: clamp(30px, 3.4vw, 44px); letter-spacing: -1px; }
h2 { font-size: clamp(27px, 3vw, 40px); letter-spacing: -.6px; }
h3 { font-size: 21px; }
h4 { font-size: 17px; }
p { margin: 0 0 1.1em; }
a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; display: block; }
ul { margin: 0; padding: 0; list-style: none; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.section { padding: 104px 0; }
.section-sm { padding: 64px 0; }
/* 区块交替底色：强化信息分区，避免整页白茫茫 */
.section.alt, .section.bg-soft { background: var(--bg-2); }
.section-head { text-align: center; max-width: 820px; margin: 0 auto 64px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 800; letter-spacing: 2px;
  color: var(--blue-600); text-transform: uppercase; margin-bottom: 18px;
  padding: 7px 18px; background: rgba(27, 79, 196, .07);
  border: 1px solid rgba(27, 79, 196, .12);
  border-radius: 999px;
}
/* 深色底上的 eyebrow 反色版（showcase / band 等展示块内） */
.on-dark .eyebrow, .band .eyebrow, .showcase .eyebrow, .member-hero .eyebrow {
  background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .28);
  box-shadow: none; backdrop-filter: blur(4px); color: #fff;
}
.section-head h2 { margin-bottom: 18px; }
.section-head p { color: var(--muted); font-size: 16.5px; line-height: 1.95; margin: 0; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px; font-size: 15px; font-weight: 600;
  cursor: pointer; border: 1.5px solid transparent; transition: all .25s ease;
  font-family: inherit; line-height: 1; white-space: nowrap;
}
.btn-primary { background: var(--grad-brand); color: #fff; box-shadow: 0 10px 26px var(--glow-blue); }
.btn-primary:hover { box-shadow: 0 14px 34px rgba(30, 80, 174, .42); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--blue-600); border-color: rgba(30, 80, 174, .38); }
.btn-ghost:hover { background: rgba(30, 80, 174, .08); border-color: var(--blue); }
.btn-outline { background: #fff; color: var(--blue-600); border-color: var(--border); }
.btn-outline:hover { border-color: var(--blue); color: var(--blue); }
/* 旧金色按钮统一收敛为蓝色次级按钮，避免金色残留 */
.btn-gold { background: var(--blue); color: #fff; box-shadow: 0 8px 20px rgba(30, 80, 174, .25); }
.btn-gold:hover { filter: brightness(1.06); transform: translateY(-2px); }
.btn-block { width: 100%; }
.btn-sm { padding: 9px 18px; font-size: 14px; }

/* ===== Navbar（浅色常驻：白底深字） ===== */
.nav {
  position: sticky; top: 0; z-index: 100; height: var(--nav-h);
  display: flex; align-items: center;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: saturate(180%) blur(12px);
  box-shadow: var(--shadow-sm);
  transition: box-shadow .3s ease;
}
.nav.scrolled { box-shadow: 0 6px 22px rgba(15, 42, 82, .10); }
/* 页眉全宽：logo 贴视口左边、导航靠右，避免宽屏上 logo 悬在容器中央 */
.nav .container {
  width: 100%; max-width: none; margin: 0;
  padding: 0 clamp(20px, 4vw, 52px);
  display: flex; align-items: center; justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 19px; color: var(--navy); transition: color .3s; }
.brand .mark {
  width: 40px; height: 40px; border-radius: 12px; flex: none;
  background: var(--grad-brand);
  display: grid; place-items: center; overflow: hidden;
  box-shadow: 0 5px 14px rgba(30, 80, 174, .25);
}
.brand .mark img { width: 32px; height: 34px; display: block; filter: brightness(0) invert(1); }
.brand small { display: block; font-size: 11px; font-weight: 600; letter-spacing: 1px; color: var(--cyan-dark); }

.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  padding: 9px 16px; border-radius: 9px; font-size: 15px; font-weight: 500;
  color: var(--text); transition: all .2s;
}
.nav-links a:hover { color: var(--blue); background: rgba(30, 80, 174, .07); }
.nav-links a.active { color: var(--blue-600); font-weight: 700; }

/* 锚点定位时避开吸顶导航 */
:target { scroll-margin-top: calc(var(--nav-h) + 18px); }

/* ===== 导航下拉分类（标题栏直接选） ===== */
.nav-item { position: relative; }
.nav-parent { display: inline-flex; align-items: center; gap: 5px; cursor: pointer; }
.caret {
  width: 7px; height: 7px; margin-top: -3px;
  border-right: 2px solid currentColor; border-bottom: 2px solid currentColor;
  transform: rotate(45deg); transition: transform .2s ease, opacity .2s ease; opacity: .55;
}
.has-dropdown:hover > .nav-parent .caret,
.has-dropdown.open > .nav-parent .caret { transform: rotate(225deg); opacity: 1; }
.dropdown {
  position: absolute; top: calc(100% + 8px); left: 50%; transform: translateX(-50%) translateY(8px);
  min-width: 220px; background: #fff; border-radius: 16px; padding: 8px;
  box-shadow: 0 20px 48px rgba(15, 42, 82, .18); border: 1px solid rgba(15, 42, 82, .07);
  opacity: 0; visibility: hidden; transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
  z-index: 120;
}
.dropdown::before { content: ""; position: absolute; top: -8px; left: 0; right: 0; height: 8px; }
.has-dropdown:hover .dropdown,
.has-dropdown.open .dropdown { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.dropdown-inner { display: flex; flex-direction: column; }
.dropdown a {
  padding: 11px 14px; border-radius: 10px; font-size: 14.5px; font-weight: 500; color: var(--text);
  white-space: nowrap; transition: background .15s ease, color .15s ease;
}
.dropdown a:hover { background: rgba(30, 80, 174, .07); color: var(--blue); }
.dropdown a.active { color: var(--blue-600); font-weight: 700; background: rgba(30, 80, 174, .06); }

.nav-actions { display: flex; align-items: center; gap: 10px; }
.nav-cta {
  padding: 9px 20px; border-radius: 999px; font-size: 14px; font-weight: 600;
  background: var(--blue); color: #fff; transition: all .25s; border: 1.5px solid transparent;
}
.nav-cta:hover { background: var(--blue-600); }
.nav-member { display: none; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; color: var(--navy); }
.nav-member .avatar {
  width: 30px; height: 30px; border-radius: 50%; background: var(--navy-3); color: #fff;
  display: grid; place-items: center; font-size: 13px; font-weight: 700;
}
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--navy); margin: 5px 0; transition: .3s; }

/* 内页统一白底深字（与默认一致，保留以兼容旧标记） */
.nav.nav-solid {
  background: rgba(255, 255, 255, .92); backdrop-filter: saturate(180%) blur(12px);
  box-shadow: var(--shadow-sm);
}
.nav.nav-solid .brand { color: var(--navy); }
.nav.nav-solid .nav-links a { color: var(--text); }
.nav.nav-solid .nav-links a.active { color: var(--blue-600); }
.nav.nav-solid .nav-member { color: var(--navy); }
.nav.nav-solid .nav-toggle span { background: var(--navy); }

/* ===== Hero（浅色） ===== */
.hero {
  position: relative; margin-top: calc(var(--nav-h) * -1); padding: 152px 0 108px;
  background:
    radial-gradient(640px 420px at 88% -12%, rgba(47, 123, 255, .14), transparent 60%),
    radial-gradient(720px 480px at 6% 8%, rgba(14, 165, 183, .12), transparent 55%),
    linear-gradient(180deg, #eef4ff 0%, #f6faff 55%, #ffffff 100%);
  color: var(--ink); overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image: radial-gradient(rgba(30, 80, 174, .05) 1px, transparent 1px);
  background-size: 26px 26px;
}
.hero::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 80px; pointer-events: none;
  background: linear-gradient(180deg, transparent, #ffffff);
}
.hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.hero h1 { color: var(--ink); text-shadow: none; }
.hero .lead { font-size: 17px; line-height: 1.9; color: var(--muted); max-width: 680px; }
.hero .hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin: 26px 0 34px; }
.hero .hero-tags span {
  font-size: 13px; padding: 7px 15px; border-radius: 999px;
  background: rgba(30, 80, 174, .07); border: 1px solid rgba(30, 80, 174, .20); color: var(--blue-600);
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 36px; margin-top: 46px; }
.hero-stats .num { font-size: 30px; font-weight: 800; color: var(--blue); }
.hero-stats .num span { color: var(--blue); }
.hero-stats .num i { font-style: normal; color: var(--cyan); }
.hero-stats .lbl { font-size: 13px; color: var(--muted); }

.hero-visual { position: relative; }
.hero-visual .glass {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 22px; padding: 26px;
  box-shadow: var(--shadow-lg), 0 0 40px rgba(47, 123, 255, .10);
}
.hero-visual svg { width: 100%; height: auto; }

/* ===== Features / cards ===== */
.grid { display: grid; gap: 26px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.steps.grid-auto { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

/* ===== 自适应栅格 v2 =====
   由 JS 依据容器内实际卡片数量写入 data-cols，让列数与卡片数严格匹配，
   彻底消除「4 张卡排 3 列 → 末尾孤行」「2 张卡占满半屏 → 右侧大片留白」。
   规则（container 型）：
     1 张 → 1；2 张 → 2；3-4 张 → 2（宽屏）；4 张窄屏 → 1；5-6 → 3；7-9 → 3；10+ → 4
   split 型（图文左右分栏）：2 张 → 左右对半，不参与上面的方阵规则。
   注意：选择器需盖过 .grid-2/.grid-3/.grid-4，故用 .grid[data-cols=x] 提高特异性。 */
.grid[data-cols] { gap: 28px; }
.grid[data-cols="1"] { grid-template-columns: 1fr !important; }
.grid[data-cols="2"] { grid-template-columns: repeat(2, minmax(0, 1fr)) !important; }
.grid[data-cols="3"] { grid-template-columns: repeat(3, minmax(0, 1fr)) !important; }
.grid[data-cols="4"] { grid-template-columns: repeat(4, minmax(0, 1fr)) !important; }
/* 2 张时用更宽的容器，避免两张窄卡中间夹巨大空隙 */
.grid[data-cols="2"] { gap: 32px; }
/* split 分栏型：图文左右对半 */
.grid[data-cols="split"] { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) !important; gap: 56px; align-items: center; }
/* 真正落单时（如 10 张卡排 4 列 → 4+4+1），让末行那 1 张居中，
   不再孤零零贴左边。末行有 2~3 张时属正常两行布局，不干预。 */
.grid[data-orphan-center="1"][data-cols="3"] > :last-child:nth-child(3n+1) { grid-column: 2 / 3; }
.grid[data-orphan-center="1"][data-cols="4"] > :last-child:nth-child(4n+1) { grid-column: 2 / 3; }
.grid[data-orphan-center="1"][data-cols="2"] > :last-child:nth-child(2n+1) { grid-column: 1 / 3; }
@media (max-width: 1080px) {
  .grid[data-cols="4"] { grid-template-columns: repeat(2, minmax(0, 1fr)) !important; }
  .grid[data-cols="split"] { grid-template-columns: 1fr !important; gap: 34px; }
}
@media (max-width: 900px) {
  .grid[data-cols="3"], .grid[data-cols="4"] { grid-template-columns: repeat(2, minmax(0, 1fr)) !important; }
}
@media (max-width: 640px) {
  .grid[data-cols="2"], .grid[data-cols="3"], .grid[data-cols="4"] { grid-template-columns: 1fr !important; }
  .grid[data-cols] { gap: 20px; }
}

.card {
  position: relative; background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 34px; box-shadow: var(--shadow-sm); transition: all .32s cubic-bezier(.4, 0, .2, 1); height: 100%;
  overflow: hidden;
}
.card::before {
  content: ""; position: absolute; inset: 0; border-radius: var(--radius); padding: 1.5px;
  background: var(--grad-brand);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity .3s ease; pointer-events: none;
}
/* 卡片顶部品牌色细条，悬停时滑出 —— 增强层次 */
.card::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: var(--grad-brand); transform: scaleX(0); transform-origin: left;
  transition: transform .38s cubic-bezier(.4, 0, .2, 1);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.card:hover::before { opacity: 1; }
.card:hover::after { transform: scaleX(1); }
.card .ico {
  width: 58px; height: 58px; border-radius: 16px; display: grid; place-items: center;
  background: linear-gradient(135deg, #1b4fc4, #2f7bff); color: #fff; margin-bottom: 20px;
  box-shadow: var(--shadow-brand); transition: transform .32s ease;
}
.card:hover .ico { transform: scale(1.06) rotate(-4deg); }
.card .ico svg { width: 29px; height: 29px; }
.card:nth-child(4n+2) .ico { background: linear-gradient(135deg, #0aa7bd, #07808f); box-shadow: 0 8px 20px var(--glow-cyan); }
.card:nth-child(4n+3) .ico { background: linear-gradient(135deg, #2f7bff, #5b6cff); box-shadow: 0 8px 20px rgba(47, 123, 255, .26); }
.card:nth-child(4n+4) .ico { background: linear-gradient(135deg, #19a7c0, #1b4fc4); box-shadow: var(--shadow-brand); }
.card h3 { margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 15px; margin: 0; line-height: 1.8; }
.card .tag {
  display: inline-block; font-size: 12px; font-weight: 700; color: var(--blue-600);
  background: var(--cyan-soft); padding: 5px 13px; border-radius: 999px; margin-bottom: 16px;
  white-space: nowrap;
}

/* product card */
.product-card { display: flex; flex-direction: column; padding: 26px 24px; }
/* 带配图的变体：图片置顶、图标浮于其上、内容下沉 */
.product-card.has-media { padding: 0; overflow: hidden; }
.pc-media { position: relative; width: 100%; aspect-ratio: 16 / 9; overflow: hidden; background: linear-gradient(135deg, var(--navy), var(--navy-3)); }
.pc-media img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .55s cubic-bezier(.4,0,.2,1); }
.product-card.has-media:hover .pc-media img { transform: scale(1.06); }
/* 图片上的品牌渐变压暗，保证图标与角标可读 */
.pc-media::after { content:""; position:absolute; inset:0; background: linear-gradient(to bottom, rgba(11,31,63,.30) 0%, rgba(11,31,63,0) 45%, rgba(11,31,63,.55) 100%); }
.pc-ico {
  position: absolute; left: 20px; bottom: 16px; z-index: 2;
  width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center;
  background: var(--grad-brand); color: #fff; box-shadow: var(--shadow-brand);
  transition: transform .32s ease;
}
.pc-ico svg { width: 24px; height: 24px; }
.product-card.has-media:hover .pc-ico { transform: scale(1.07) rotate(-4deg); }
.pc-body { padding: 24px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.product-card .pc-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
.product-card .pc-top .tag, .product-card .pc-top .hl { white-space: nowrap; }
.product-card h3 { font-size: 20px; }
.product-card .hl { font-size: 12px; font-weight: 700; color: #fff; background: var(--blue); padding: 5px 12px; border-radius: 999px; white-space: nowrap; }
.product-card .tagline { color: var(--muted); font-size: 15px; margin: 12px 0 14px; }
.product-card .pc-desc { font-size: 14px; color: var(--muted); margin: 0 0 16px; line-height: 1.8; }
.product-card ul.feat { margin: 0 0 20px; display: grid; gap: 9px; }
.product-card ul.feat li { font-size: 14px; color: var(--text); padding-left: 24px; position: relative; }
.product-card ul.feat li::before {
  content: ""; position: absolute; left: 0; top: 8px; width: 14px; height: 14px; border-radius: 4px;
  background: var(--cyan); opacity: .18;
}
.product-card ul.feat li::after {
  content: "✓"; position: absolute; left: 3px; top: 1px; font-size: 11px; color: var(--cyan-dark); font-weight: 800;
}
.product-card .more { margin-top: auto; font-weight: 600; color: var(--blue-600); font-size: 14px; }

/* ===== 案例卡 v2：成效高亮条 ===== */
.case { padding: 0; overflow: hidden; }
.case .case-media { position: relative; aspect-ratio: 16 / 9; background: linear-gradient(135deg, var(--navy), var(--navy-3)); overflow: hidden; }
.case .case-media img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .55s cubic-bezier(.4,0,.2,1); }
.case:hover .case-media img { transform: scale(1.05); }
.case .case-media .tag { position: absolute; left: 14px; top: 14px; margin: 0; z-index: 2; background: rgba(11,31,63,.62); backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,.22); color:#fff; }
.case .case-body { padding: 22px 24px 26px; display: flex; flex-direction: column; height: 100%; }
/* 成效高亮条：把量化结果提到卡片底部做视觉锚点 */
.case-result {
  display: flex; gap: 10px; align-items: flex-start;
  margin: 0 0 14px; padding: 13px 15px; min-height: 60px;
  background: linear-gradient(135deg, rgba(10,167,189,.08), rgba(27,79,196,.07));
  border: 1px solid rgba(27,79,196,.13); border-radius: var(--radius-sm);
}
.case-result .cr-l {
  flex: none; font-size: 11px; font-weight: 800; color: #fff; letter-spacing: 1px;
  background: var(--grad-brand); padding: 3px 10px; border-radius: 999px; margin-top: 1px;
}
.case-result .cr-v { font-size: 13.5px; line-height: 1.75; color: var(--text); font-weight: 600; }
.case .case-body h3 { margin: 0 0 8px; font-size: 19px; line-height: 1.4; }
.case .case-meta { font-size: 12.5px; color: var(--muted); margin: 0 0 10px; letter-spacing: .2px; }
.case .case-summary { font-size: 14.5px; color: var(--muted); line-height: 1.8; margin: 0 0 16px; min-height: 78px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.case .case-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 2px; }
.case .case-tags .tag-soft { font-size: 12px; font-weight: 600; color: var(--blue-600); background: var(--cyan-soft); padding: 4px 11px; border-radius: 999px; white-space: nowrap; }

/* ===== Hardware cards ===== */
.hw { padding: 0; overflow: hidden; }
.hw .hw-media { position: relative; aspect-ratio: 16 / 10; background: linear-gradient(135deg, #0e2a4d, #15406e); }
.hw .hw-media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.hw .hw-media .tag { position: absolute; left: 14px; top: 14px; margin: 0; z-index: 2; }
.hw .hw-body { padding: 20px 22px 24px; }
.hw .hw-body h3 { margin: 0 0 8px; font-size: 18px; }

/* ===== Hero showcase band（深色展示块，作视觉锚点） ===== */
.showcase { position: relative; border-radius: 24px; overflow: hidden; min-height: 340px; display: grid; align-items: end; background: linear-gradient(135deg, var(--navy), var(--navy-3)); }
.showcase img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.showcase::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(15,42,82,.2), rgba(20,52,95,.88)), radial-gradient(circle at 82% 18%, rgba(14,165,183,.40), transparent 55%); }
.showcase .sc-inner { position: relative; z-index: 2; padding: 44px; color: #fff; }
.showcase .sc-inner h2 { color: #fff; margin: 10px 0; }
.showcase .sc-inner p { color: rgba(255,255,255,.85); max-width: 580px; margin: 0; }

/* ===== Industry media (about) ===== */
.ind-media { aspect-ratio: 16 / 9; border-radius: 14px; overflow: hidden; background: linear-gradient(135deg, var(--navy), var(--navy-3)); margin-bottom: 16px; }
.ind-media img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* ===== About / split（深色 visual 作锚点） ===== */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.split .visual {
  border-radius: 22px; overflow: hidden; background: linear-gradient(160deg, var(--navy), var(--navy-3));
  box-shadow: var(--shadow); aspect-ratio: 4/3; display: grid; place-items: center; padding: 28px;
}
.split h2 { margin-bottom: 16px; }
.split p { color: var(--text); }

/* steps */
.steps { counter-reset: step; }
.step { position: relative; padding: 26px 26px 26px 78px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.step::before {
  counter-increment: step; content: counter(step); position: absolute; left: 22px; top: 24px;
  width: 42px; height: 42px; border-radius: 12px; background: var(--grad-brand); color: #fff;
  display: grid; place-items: center; font-weight: 800; font-size: 18px; box-shadow: 0 6px 16px rgba(30, 80, 174, .3);
}
.step h4 { margin: 0 0 6px; font-size: 17px; }
.step p { color: var(--muted); font-size: 14px; margin: 0; }

/* stats band（深色数据带，作视觉锚点） */
.band { position: relative; overflow: hidden; background: linear-gradient(135deg, var(--navy) 0%, #1b3a6b 55%, #143a63 100%); color: #fff; border-radius: 24px; padding: 48px; box-shadow: 0 24px 60px rgba(15, 42, 82, .22); }
.band::before { content:""; position:absolute; width:380px; height:380px; right:-80px; top:-120px; border-radius:50%; background: radial-gradient(circle, rgba(14,165,183,.35), transparent 65%); pointer-events:none; }
.band::after { content:""; position:absolute; width:320px; height:320px; left:-60px; bottom:-120px; border-radius:50%; background: radial-gradient(circle, rgba(47,123,255,.30), transparent 65%); pointer-events:none; }
.band .grid-4 { text-align: center; position: relative; z-index: 2; }
.band .num { font-size: 40px; font-weight: 800; background: linear-gradient(120deg,#7fe9f0,#9fb6ff 60%,#c9a0ff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.band .num span { -webkit-text-fill-color: #9fb6ff; }
.band .num i { font-style: normal; -webkit-text-fill-color: inherit; }
.band .lbl { font-size: 14px; color: rgba(255,255,255,.78); }

/* ===== Contact ===== */
.contact-wrap { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; }
.contact-info .ci { display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--border); }
.contact-info .ci:last-child { border-bottom: 0; }
.contact-info .ci .ic { width: 46px; height: 46px; flex: none; border-radius: 12px; background: var(--cyan-soft); color: var(--cyan-dark); display: grid; place-items: center; }
.contact-info .ci .ic svg { width: 22px; height: 22px; }
.contact-info .ci h4 { margin: 0 0 3px; font-size: 15px; }
.contact-info .ci p { margin: 0; color: var(--muted); font-size: 15px; }

.form-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 34px; box-shadow: var(--shadow); }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 7px; color: var(--ink); }
.field label .req { color: #e05656; }
.field input, .field textarea, .field select {
  width: 100%; padding: 12px 14px; border: 1.5px solid var(--border); border-radius: var(--radius-sm);
  font-size: 15px; font-family: inherit; color: var(--text); background: #fff; transition: border .2s, box-shadow .2s;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(30, 80, 174, .12);
}
.field textarea { resize: vertical; min-height: 110px; }
.form-msg { font-size: 14px; padding: 12px 14px; border-radius: var(--radius-sm); margin-bottom: 16px; display: none; }
.form-msg.ok { display: block; background: #e7f7ee; color: #1f8a4c; border: 1px solid #bce8cd; }
.form-msg.err { display: block; background: #fdeaea; color: #c0392b; border: 1px solid #f3c4c0; }

/* ===== Footer（深蓝锚点） ===== */
.footer { background: var(--navy); color: rgba(255,255,255,.8); padding: 64px 0 28px; }
.footer .fgrid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr; gap: 36px; }
.footer .brand { color: #fff; margin-bottom: 16px; }
.footer p { font-size: 14px; color: rgba(255,255,255,.65); }
.footer h4 { color: #fff; font-size: 15px; margin: 0 0 16px; }
.footer ul li { margin-bottom: 10px; }
.footer ul li a { font-size: 14px; color: rgba(255,255,255,.7); transition: color .2s; }
.footer ul li a:hover { color: #7fe9f0; }
.footer .bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 40px; padding-top: 22px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 13px; color: rgba(255,255,255,.55); }

/* ===== 备案信息（工信部要求：可点击并跳转官方公示） ===== */
.footer .beian { font-size: 13px; color: rgba(255,255,255,.55); }
.footer .beian a { color: rgba(255,255,255,.62); text-decoration: none; border-bottom: 1px dotted rgba(255,255,255,.35); transition: color .2s, border-color .2s; }
.footer .beian a:hover { color: #7fe9f0; border-color: #7fe9f0; }

/* ===== Modal (auth) —— 已弃用，保留样式不影响 ===== */
.modal { position: fixed; inset: 0; z-index: 1000; display: none; }
.modal.open { display: block; }

/* member（已弃用页，保留样式） */
.member-hero { background: linear-gradient(135deg, var(--navy), var(--navy-3)); color: #fff; padding: 54px 0; }
.member-hero h1 { color: #fff; font-size: 30px; }
.member-hero p { color: rgba(255,255,255,.8); margin: 0; }
.panel { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow-sm); }
.panel h3 { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.panel h3 .dot { width: 8px; height: 18px; border-radius: 3px; background: var(--cyan); display: inline-block; }

/* toast */
.toast { position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%) translateY(20px); background: var(--navy); color: #fff; padding: 13px 22px; border-radius: 12px; font-size: 14px; box-shadow: var(--shadow-lg); opacity: 0; pointer-events: none; transition: .3s; z-index: 1100; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* breadcrumb */
.crumb { background: var(--bg-2); padding: 18px 0; font-size: 14px; color: var(--muted); }
.crumb a { color: var(--blue-600); }

/* utilities */
.text-cyan { color: var(--cyan-dark); }
.text-gold { color: var(--blue-600); }
.center { text-align: center; }
.mt-0 { margin-top: 0; }
.muted { color: var(--muted); }
.bg-soft { background: linear-gradient(180deg, #ffffff 0%, #f4f7fb 100%); }
.divider { height: 1px; background: var(--border); margin: 0; border: 0; }

/* 渐变文字 */
.text-grad { background: var(--grad-brand); -webkit-background-clip: text; background-clip: text; color: transparent; }
/* 页脚顶部渐变条 */
.footer { position: relative; }
.footer::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: var(--grad-brand); }
/* ===== 滚动进场动画 ===== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s cubic-bezier(.22,.7,.3,1), transform .7s cubic-bezier(.22,.7,.3,1); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }
.reveal.d4 { transition-delay: .32s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* ===== 阅读进度条 ===== */
.progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0; z-index: 1200;
  background: var(--grad-brand); box-shadow: 0 0 12px rgba(30, 80, 174, .5);
  transition: width .12s linear;
}

/* ===== 回到顶部 ===== */
.totop {
  position: fixed; right: 26px; bottom: 28px; z-index: 1100;
  width: 46px; height: 46px; border-radius: 14px; border: 1px solid var(--border);
  background: #fff; color: var(--navy); cursor: pointer;
  display: grid; place-items: center; box-shadow: var(--shadow);
  opacity: 0; visibility: hidden; transform: translateY(12px); transition: all .3s ease;
}
.totop.show { opacity: 1; visibility: visible; transform: none; }
.totop:hover { border-color: transparent; background: var(--grad-brand); color: #fff; box-shadow: 0 12px 28px var(--glow-blue); }
.totop svg { width: 20px; height: 20px; }

/* ===== 移动端菜单按钮变为 X ===== */
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero 孪生示意：数据流动感 ===== */
@keyframes dashflow { to { stroke-dashoffset: -40; } }
@keyframes nodeglow { 0%, 100% { opacity: .45; } 50% { opacity: 1; } }
.hero-visual .glass { animation: none; }
.hero-visual .flow { stroke-dasharray: 5 5; animation: dashflow 1.6s linear infinite; }
.hero-visual .node { transform-box: fill-box; transform-origin: center; animation: nodeglow 2.4s ease-in-out infinite; }
.hero-visual .node:nth-of-type(2) { animation-delay: .3s; }
.hero-visual .node:nth-of-type(3) { animation-delay: .6s; }
.hero-visual .node:nth-of-type(4) { animation-delay: .9s; }
.hero-visual .node:nth-of-type(5) { animation-delay: 1.2s; }
@keyframes spin { to { transform: rotate(360deg); } }
.hero-visual { position: relative; }
.hero-visual::before {
  content: ""; position: absolute; inset: -14px; border-radius: 32px; z-index: -1;
  background: conic-gradient(from 0deg, transparent 0 55%, rgba(14,165,183,.45) 70%, rgba(47,123,255,.45) 85%, transparent 100%);
  animation: spin 9s linear infinite;
  filter: blur(14px); opacity: .4;
}

/* ===== 图片容器与响应式图片 ===== */
.pic { position: relative; overflow: hidden; background: linear-gradient(135deg, var(--navy), var(--navy-3)); }
.pic img { width: 100%; height: 100%; object-fit: cover; display: block; }
.pic-16x9 { aspect-ratio: 16 / 9; }
.pic-16x10 { aspect-ratio: 16 / 10; }
.pic-4x3 { aspect-ratio: 4 / 3; }
/* ===== 方案主视觉 v2：真实工业照片 + 深色叠层 + 浮层图注 ===== */
.sol-fig {
  margin: 0 0 34px; position: relative; border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-lg); background: var(--navy);
}
.sol-fig img {
  width: 100%; height: auto; display: block; border: 0; border-radius: 0;
  box-shadow: none; aspect-ratio: 21 / 8; object-fit: cover;
  transition: transform .6s cubic-bezier(.4,0,.2,1);
}
.sol-fig:hover img { transform: scale(1.03); }
/* 底部深色叠层 + 图注浮在图上 */
.sol-fig::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(to top, rgba(11,31,63,.82) 0%, rgba(11,31,63,.28) 34%, rgba(11,31,63,0) 62%);
}
.sol-fig figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 2;
  margin: 0; padding: 22px 28px;
  font-size: 14px; font-weight: 600; color: #fff; text-align: left;
  letter-spacing: .3px;
}
@media (max-width: 720px) {
  .sol-fig img { aspect-ratio: 16 / 9; }
  .sol-fig figcaption { padding: 16px 20px; font-size: 13px; }
}
/* ===== 首页「关于我们」三点支撑 ===== */
/* 关于区右图：竖版配图（1200×1010）撑满右列，与左侧文字块等高对齐 */
.about-visual { display: flex; }
.about-visual .sol-fig--fill { flex: 1 1 auto; min-height: 360px; }
.about-visual .sol-fig--fill img { height: 100%; aspect-ratio: auto; object-fit: cover; }
/* 图文分栏在 1080 以下折成单列：图片改为通栏 16:9，避免一条竖图占满整屏 */
@media (max-width: 1080px) {
  .about-visual .sol-fig--fill { min-height: 0; }
  .about-visual .sol-fig--fill img { height: auto; aspect-ratio: 16 / 9; }
}
@media (max-width: 680px) {
  .about-visual .sol-fig--fill { min-height: 0; }
  .about-visual .sol-fig--fill img { height: auto; aspect-ratio: 1200 / 1010; }
}
.about-points { display: grid; gap: 22px; }
.about-points .ap { display: flex; gap: 16px; align-items: flex-start; }
.about-points .ap-ico {
  width: 46px; height: 46px; border-radius: 13px; flex: none; display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(27,79,196,.10), rgba(10,167,189,.12));
  border: 1px solid rgba(27,79,196,.14); color: var(--blue-600);
}
.about-points .ap-ico svg { width: 24px; height: 24px; }
.about-points .ap h4 { margin: 0 0 5px; font-size: 16.5px; color: var(--ink); }
.about-points .ap p { margin: 0; font-size: 14.5px; line-height: 1.8; color: var(--muted); }

/* ===== CTA 区块：深色背景 + 真实工厂图，消除大片留白 ===== */
.cta-band {
  position: relative; overflow: hidden;
  background: var(--navy);
  background-image:
    linear-gradient(rgba(11,31,63,.86), rgba(11,31,63,.92)),
    url('../assets/images/hero-factory.jpg');
  background-size: cover; background-position: center;
  color: #fff;
}
.cta-band h2 { color: #fff; }
.cta-band .muted { color: rgba(255,255,255,.82); }
.cta-band .eyebrow { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.28); color: #fff; }
.cta-band .btn-outline { background: rgba(255,255,255,.06); color: #fff; border-color: rgba(255,255,255,.34); }
.cta-band .btn-outline:hover { background: rgba(255,255,255,.14); border-color: #fff; color: #fff; }

/* ===== 方案卡片 v2：真实配图 + 底部渐变遮罩 + 角标 ===== */
.sol-card {
  position: relative; transition: transform .3s cubic-bezier(.4,0,.2,1), box-shadow .3s ease, border-color .3s ease;
  padding: 0; overflow: hidden; display: flex; flex-direction: column;
}
.sol-card:hover { transform: translateY(-7px); box-shadow: var(--shadow-lg); border-color: transparent; }
.sol-media { position: relative; width: 100%; aspect-ratio: 16 / 10; overflow: hidden; background: linear-gradient(135deg, var(--navy), var(--navy-3)); }
.sol-media img { width: 100%; height: 100%; object-fit: cover; display: block; border: 0; border-radius: 0; margin: 0; transition: transform .55s cubic-bezier(.4,0,.2,1); }
.sol-card:hover .sol-media img { transform: scale(1.06); }
/* 底部渐变遮罩，保证文字可读同时保留实景质感 */
.sol-veil {
  position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(to bottom, rgba(11,31,63,0) 42%, rgba(11,31,63,.55) 78%, rgba(11,31,63,.88) 100%);
}
.sol-body { padding: 24px 26px 28px; display: flex; flex-direction: column; flex: 1; }
.sol-no {
  position: absolute; top: 16px; left: 16px; z-index: 3; font-size: 12px; font-weight: 800; color: #fff;
  background: rgba(11,31,63,.62); backdrop-filter: blur(8px);
  padding: 6px 14px; border-radius: 999px; letter-spacing: 1.5px;
  border: 1px solid rgba(255,255,255,.22);
}
.sol-card h3 { margin-bottom: 10px; font-size: 21px; }
.sol-card p { color: var(--muted); font-size: 15px; line-height: 1.8; margin: 0 0 4px; }
.sol-more { display: inline-block; margin-top: auto; padding-top: 14px; font-size: 14px; font-weight: 700; color: var(--blue-600); transition: color .2s ease, transform .2s ease; }
.sol-card:hover .sol-more { color: var(--cyan-dark); transform: translateX(4px); }

/* ===== 首页全宽 Banner（MTM 式门面） ===== */
.banner {
  position: relative; overflow: hidden; color: #fff; text-align: center; padding: 92px 0 28px;
  background:
    linear-gradient(135deg, rgba(9, 24, 51, .90) 0%, rgba(15, 42, 82, .80) 50%, rgba(12, 33, 68, .92) 100%),
    url('../assets/images/hero-factory.jpg') center 28% / cover no-repeat,
    linear-gradient(135deg, #0f2a52 0%, #16406f 60%, #1a4798 100%);
}
.banner::before { content: ""; position: absolute; inset: 0; background: radial-gradient(620px 320px at 16% 18%, rgba(14, 165, 183, .24), transparent 62%), radial-gradient(720px 380px at 86% 30%, rgba(47, 123, 255, .26), transparent 62%); }
.banner-bg { position: absolute; inset: 0; width: 100%; height: 100%; }
.banner-inner { position: relative; z-index: 2; max-width: 880px; }
.banner-tag { display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: 3px; color: #8fd3dd; border: 1px solid rgba(143, 211, 221, .35); padding: 7px 18px; border-radius: 999px; margin-bottom: 24px; }
.banner h1 { color: #fff; font-size: clamp(32px, 3.8vw, 48px); margin-bottom: 18px; }
.banner .lead { color: rgba(255, 255, 255, .82); font-size: 17px; line-height: 1.9; max-width: 660px; margin: 0 auto 36px; }
.banner-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn-light { background: #fff; color: var(--navy); }
.btn-light:hover { background: #eaf1fb; transform: translateY(-2px); }
.btn-ghost-light { border-color: rgba(255, 255, 255, .5); color: #fff; }
.btn-ghost-light:hover { border-color: #fff; background: rgba(255, 255, 255, .08); transform: translateY(-2px); }
.banner-stats { position: relative; z-index: 2; margin-top: 64px; border-top: 1px solid rgba(255, 255, 255, .14); }
.bstats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; padding: 26px 24px; }
.bstats b { display: block; font-size: 24px; color: #fff; font-weight: 700; line-height: 1.3; }
.bstats span { font-size: 13px; color: rgba(255, 255, 255, .62); }
@media (max-width: 720px) { .bstats { grid-template-columns: repeat(2, 1fr); row-gap: 20px; } }

/* 首屏左文右图分栏（可视化编辑器可切换 heroLayout） */
.banner .banner-visual { display: none; }
.banner.hero-split {
  display: grid; grid-template-columns: var(--hero-split, 55%) 1fr; column-gap: 56px;
  align-items: center; text-align: left; padding: 104px 0 72px;
}
.banner.hero-split .banner-inner { max-width: none; margin: 0; text-align: left; padding: 0 clamp(20px, 4vw, 52px); }
.banner.hero-split .banner-tag { margin-left: 0; }
.banner.hero-split .banner-actions { justify-content: flex-start; }
.banner.hero-split .banner-visual { display: block; padding-right: clamp(20px, 4vw, 52px); }
.banner.hero-split .banner-stats { grid-column: 1 / -1; margin-top: 44px; }
.banner.hero-split .bstats { max-width: none; padding-left: clamp(20px, 4vw, 52px); padding-right: clamp(20px, 4vw, 52px); }
.banner .banner-visual .bv-glass {
  position: relative; overflow: hidden;
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 22px; padding: 26px; backdrop-filter: blur(8px);
  box-shadow: 0 24px 60px rgba(8, 22, 48, .35);
}
.banner .banner-visual .bv-glass::before {
  content: ""; position: absolute; inset: -40px; border-radius: 50%; z-index: 0;
  background: conic-gradient(from 0deg, transparent 0 55%, rgba(14, 165, 183, .5) 70%, rgba(47, 123, 255, .5) 85%, transparent 100%);
  filter: blur(26px); opacity: .5;
}
.bv-head { position: relative; z-index: 2; display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; font-size: 15px; margin-bottom: 18px; }
.bv-dot { width: 10px; height: 10px; border-radius: 50%; background: #35c4d0; box-shadow: 0 0 0 4px rgba(53, 196, 208, .22); }
.bv-cards { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 18px; }
.bv-card { background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .16); border-radius: 14px; padding: 14px; color: #fff; }
.bv-card b { display: block; font-size: 12px; font-weight: 600; color: rgba(255, 255, 255, .7); }
.bv-card span { font-size: 22px; font-weight: 800; }
.bv-chart { position: relative; z-index: 2; display: flex; align-items: flex-end; gap: 10px; height: 120px; }
.bv-chart i { flex: 1; height: var(--h); background: linear-gradient(180deg, #7fe9f0, #2f7bff); border-radius: 8px 8px 0 0; opacity: .85; }
@media (max-width: 980px) {
  .banner.hero-split { grid-template-columns: 1fr; }
  .banner.hero-split .banner-visual { display: none; }
}

/* ===== 行业筛选标签 ===== */
.filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 32px; }
.filters button {
  font-family: inherit; font-size: 14px; font-weight: 600; cursor: pointer;
  padding: 9px 20px; border-radius: 999px; border: 1.5px solid var(--border);
  background: #fff; color: var(--muted); transition: all .25s ease;
}
.filters button:hover { border-color: var(--blue); color: var(--blue-600); }
.filters button.active { background: var(--grad-brand); border-color: transparent; color: #fff; box-shadow: 0 8px 20px var(--glow-blue); }

/* ===== 客户 logo 墙 ===== */
.logowall { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.logowall .lw {
  height: 76px; display: grid; place-items: center; padding: 0 16px;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-size: 15px; font-weight: 700; color: var(--muted); letter-spacing: .5px;
  transition: all .3s ease; text-align: center; line-height: 1.3;
}
.logowall .lw:hover { color: var(--navy); border-color: transparent; box-shadow: var(--shadow); transform: translateY(-3px); }

/* ===== 荣誉资质 ===== */
.certs { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 20px; }
.cert {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 22px; text-align: center; transition: all .3s ease;
}
.cert:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: transparent; }
.cert .ci {
  width: 54px; height: 54px; margin: 0 auto 16px; border-radius: 50%;
  display: grid; place-items: center; color: #fff;
  background: linear-gradient(135deg, #1e50ae, #2f7bff); box-shadow: 0 8px 18px rgba(30, 80, 174, .22);
}
.cert .ci svg { width: 26px; height: 26px; }
.cert h4 { margin: 0 0 6px; font-size: 16px; }
.cert p { margin: 0; font-size: 13px; color: var(--muted); }

/* ===== 发展历程 v2：横向阶段卡片（原竖向时间轴过于细长、留白大） ===== */
.timeline {
  display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 18px;
  position: relative;
}
.tl-item {
  position: relative; background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px 22px 24px; box-shadow: var(--shadow-sm);
  transition: transform .3s cubic-bezier(.4,0,.2,1), box-shadow .3s ease, border-color .3s ease;
  overflow: hidden;
}
/* 顶部品牌渐变细条 */
.tl-item::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: var(--grad-brand); transform: scaleX(0); transform-origin: left;
  transition: transform .4s cubic-bezier(.4,0,.2,1);
}
.tl-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.tl-item:hover::before { transform: scaleX(1); }
/* 阶段序号圆点 */
.tl-item::after {
  content: attr(data-step); position: absolute; right: 18px; top: 14px;
  font-size: 42px; font-weight: 800; line-height: 1;
  color: var(--blue); opacity: .07; letter-spacing: -2px;
}
.tl-item .yr {
  display: inline-block; font-size: 12px; font-weight: 800; color: var(--blue-600);
  background: var(--cyan-soft); padding: 4px 13px; border-radius: 999px; margin-bottom: 12px;
  letter-spacing: .5px;
}
.tl-item h4 { margin: 0 0 8px; font-size: 17px; line-height: 1.4; position: relative; z-index: 1; }
.tl-item p { margin: 0; font-size: 14px; color: var(--muted); line-height: 1.78; }
@media (max-width: 1080px) { .timeline { grid-template-columns: repeat(3, minmax(0,1fr)); } }
@media (max-width: 760px)  { .timeline { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 520px)  { .timeline { grid-template-columns: 1fr; } }

/* ===== 关于页「四大能力」实拍视觉墙（替换原线框示意图） ===== */
.cap-wall {
  display: grid; grid-template-columns: repeat(2, 1fr); grid-auto-rows: 1fr;
  gap: 14px; border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-lg); background: var(--navy);
}
.cap-wall .cw-item { position: relative; overflow: hidden; aspect-ratio: 4 / 3; }
.cap-wall .cw-item img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .55s cubic-bezier(.4,0,.2,1); }
.cap-wall .cw-item:hover img { transform: scale(1.07); }
.cap-wall .cw-item::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(11,31,63,.86) 0%, rgba(11,31,63,.18) 55%, rgba(11,31,63,0) 100%);
}
.cap-wall .cw-item span {
  position: absolute; left: 16px; bottom: 13px; z-index: 2;
  font-size: 15px; font-weight: 700; color: #fff; letter-spacing: .5px;
}

/* ===== 联系页「服务承诺」列表 ===== */
.contact-promise {
  margin-top: 26px; padding: 26px 28px;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.contact-promise h4 { margin: 0 0 16px; font-size: 17px; color: var(--ink); }
.contact-promise ol { margin: 0; padding-left: 0; list-style: none; counter-reset: cp; display: grid; gap: 13px; }
.contact-promise li {
  position: relative; padding-left: 34px; font-size: 14.5px; line-height: 1.78; color: var(--text);
  counter-increment: cp;
}
.contact-promise li::before {
  content: counter(cp); position: absolute; left: 0; top: 1px;
  width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center;
  background: var(--grad-brand); color: #fff; font-size: 12px; font-weight: 800;
  box-shadow: 0 4px 10px var(--glow-blue);
}
.contact-promise li b { color: var(--blue-600); }

/* ===== 理念 / 价值观卡 v2 ===== */
.values { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 24px; }
.value {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 28px; box-shadow: var(--shadow-sm);
  transition: transform .3s cubic-bezier(.4,0,.2,1), box-shadow .3s ease, border-color .3s ease;
  position: relative; overflow: hidden;
}
.value::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: var(--grad-brand); transform: scaleX(0); transform-origin: left;
  transition: transform .4s cubic-bezier(.4,0,.2,1);
}
.value:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.value:hover::before { transform: scaleX(1); }
.value .ico {
  width: 52px; height: 52px; border-radius: 15px; display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(27,79,196,.10), rgba(10,167,189,.13));
  border: 1px solid rgba(27,79,196,.14); color: var(--blue-600); margin-bottom: 18px;
  transition: transform .3s ease;
}
.value:hover .ico { transform: scale(1.07) rotate(-4deg); }
.value .ico svg { width: 26px; height: 26px; }
.value h4 { margin: 0 0 8px; font-size: 18.5px; }
.value p { margin: 0; font-size: 14.5px; color: var(--muted); line-height: 1.82; }

/* ===== 双 CTA ===== */
.cta-pair { display: flex; gap: 14px; flex-wrap: wrap; }

/* ===== 案例 / 硬件卡片悬停 ===== */
.case, .hw { position: relative; }
.case-media img, .hw-media img { transition: transform .5s ease; }
.case:hover .case-media img, .hw:hover .hw-media img { transform: scale(1.06); }
.case-media::after, .hw-media::after { content:""; position:absolute; inset:0; background: linear-gradient(135deg, rgba(14,165,183,.22), rgba(47,123,255,.22)); mix-blend-mode: screen; opacity:0; transition: opacity .3s; pointer-events:none; }
.case:hover .case-media::after, .hw:hover .hw-media::after { opacity:.5; }

/* ===== 新闻列表 ===== */
.posts { display: grid; gap: 22px; }
.post {
  display: grid; grid-template-columns: 180px 1fr; gap: 24px; align-items: center;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; transition: all .3s ease;
}
.post:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
.post .thumb { aspect-ratio: 16/9; border-radius: 12px; overflow: hidden; background: linear-gradient(135deg, var(--navy), var(--navy-3)); }
.post .thumb img { width: 100%; height: 100%; object-fit: cover; }
.post .meta { font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.post h3 { margin: 0 0 8px; font-size: 19px; }
.post p { color: var(--muted); font-size: 14px; margin: 0; }
.post-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 0; }
.post-tags span { font-size: 12px; font-weight: 600; color: var(--blue-600); background: var(--cyan-soft); padding: 4px 12px; border-radius: 999px; }

/* ===== 新闻详情 ===== */
.post-detail { max-width: 820px; margin: 0 auto; }
.post-detail .meta { color: var(--muted); font-size: 14px; margin-bottom: 18px; }
.post-detail h1 { margin-bottom: 14px; }
.post-detail .body { font-size: 16px; line-height: 1.9; }
.post-detail .body p { margin: 0 0 1.2em; }
.post-detail .body h3 { margin: 1.6em 0 .6em; }

/* ===== 关于我们：能力六块 ===== */
.about-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.about-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow-sm); transition: all .3s ease; }
.about-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.about-card h3 { font-size: 18px; }
.about-card p { color: var(--muted); font-size: 14px; margin: 0; }

/* ===== Responsive ===== */
@media (max-width: 980px) {
  .hero-grid, .split, .contact-wrap { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-auto { grid-template-columns: repeat(2, 1fr); }
  .footer .fgrid { grid-template-columns: repeat(3, 1fr); }
  .logowall { grid-template-columns: repeat(3, 1fr); }
  .about-list { grid-template-columns: repeat(2, 1fr); }
  .post { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .section { padding: 60px 0; }
  .grid-2, .grid-3, .grid-4, .grid-auto { grid-template-columns: 1fr; }
  .logowall { grid-template-columns: repeat(2, 1fr); }
  .footer .fgrid { grid-template-columns: 1fr; }
  .about-list { grid-template-columns: 1fr; }
  .nav-links {
    position: absolute; top: var(--nav-h); left: 0; right: 0; background: #fff; flex-direction: column;
    padding: 16px; gap: 4px; box-shadow: var(--shadow); display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { color: var(--text); }
  /* 移动端：下拉改为可展开的纵向子列表 */
  .has-dropdown .dropdown {
    position: static; transform: none; opacity: 1; visibility: visible;
    box-shadow: none; border: 0; padding: 0 0 4px 14px; min-width: 0;
    background: transparent; display: none;
  }
  .has-dropdown.open .dropdown { display: block; }
  .dropdown a { padding: 10px 14px; font-size: 14px; background: rgba(30, 80, 174, .05); margin: 3px 0; }
  .nav-toggle { display: block; }
  .nav-cta { display: none; }
  .hero-stats { gap: 22px; flex-wrap: wrap; }
  .band { padding: 32px 22px; }
  .totop { right: 16px; bottom: 18px; }
  .nav:has(.nav-links.open), .nav-open .nav { background: rgba(255,255,255,.96); backdrop-filter: blur(12px); }
  .nav:has(.nav-links.open) .brand, .nav-open .brand { color: var(--navy); }
  .nav:has(.nav-links.open) .nav-toggle span, .nav-open .nav-toggle span { background: var(--navy); }
}