:root {
	/* 较亮的深色蓝灰配色，提升对比度与可读性 */
	--bg: #1b2738; /* 背景 */
	--fg: #eef2f8; /* 正文文字 */
	--muted: #bdc9d8; /* 次级文字 */
	--card: #253346; /* 卡片底 */
	--card-2: #21303f; /* 次级卡片 */
	--brand: #6fb6ff; /* 品牌主色（更亮） */
	--brand-2: #8b5cf6; /* 渐变辅色 */
	--line: #33465f; /* 分割线 */
	--ok: #22c55e; /* 强调色 */
	--warn: #f59e0b;

	/* 背景渐变的前景色（深色基调） */
	--bg-accent: #2a3a52;

	/* 链接颜色（深色主题下更亮的蓝色，替代紫色） */
	--link: #86c5ff;
	--link-hover: #baddff;

	--radius: 16px;
	--shadow: 0 10px 24px rgba(0, 0, 0, 0.24);
}

/* 浅色主题变量覆盖 */
:root[data-theme="light"] {
	--bg: #f7f9fc;
	--fg: #1f2937;
	--muted: #6b7280;
	--card: #ffffff;
	--card-2: #f3f4f6;
	--brand: #2563eb;
	--brand-2: #7c3aed;
	--line: #e5e7eb;
	--ok: #16a34a;
	--warn: #d97706;
	--bg-accent: #e8eef7;

	/* 浅色主题下链接颜色采用更深蓝 */
	--link: #1d4ed8;
	--link-hover: #1e40af;
}

* {
	box-sizing: border-box;
}
html {
	scroll-behavior: smooth;
}
body {
	margin: 0;
	font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Noto Sans", sans-serif;
	background: radial-gradient(60% 50% at 10% 10%, var(--bg-accent) 0%, var(--bg) 65%) fixed;
	color: var(--fg);
}

/* 全站链接统一颜色与可读性（避免浏览器默认紫色） */
a { color: var(--link); }
a:hover { color: var(--link-hover); }
a:visited { color: var(--link); }

/* 容器与通用 */
.container {
	width: min(1200px, 92%);
	margin-inline: auto;
}
.section-pad {
    padding: 20px 0; /* 紧凑布局：全局更小的上下留白 */
}
.section-pad.alt {
	background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02));
}
.section-title {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: 0.2px;
    margin: 0 0 4px 0;
}
.section-sub {
    color: var(--muted);
    margin: 0 0 12px 0;
}
/* Hero 与下一个区块尽量无间隙 */
.hero.section-pad{ padding-bottom: 4px; }
/* 邻接的区块进一步压缩顶部留白 */
section + section.section-pad{ padding-top: 12px; }

@media (max-width: 720px) {
    .section-pad { padding: 16px 0; }
    .section-title { font-size: 28px; }
}

/* 顶部导航 */
.navbar {
	position: sticky;
	top: 0;
	z-index: 50;
	backdrop-filter: saturate(140%) blur(10px);
	background: rgba(27, 39, 56, 0.72);
	border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

/* 浅色主题下的导航样式微调 */
:root[data-theme="light"] .navbar{
	background: rgba(255,255,255,0.75);
	border-bottom-color: rgba(0,0,0,0.08);
}
.nav-container {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: 64px;
}
.brand-badge {
    display: inline-block;
	font-weight: 800;
	letter-spacing: 0.5px;
	background: linear-gradient(135deg, var(--brand), var(--brand-2));
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
	font-size: 18px;
	/* 单行省略，避免品牌文案换行撑开导航 */
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}
.brand-logo{ height:40px; width:auto; display:block; border-radius:8px; box-shadow:0 2px 8px rgba(0,0,0,.25) }
.brand{display:flex; align-items:center; gap:12px; max-width:40vw; text-decoration:none}
@media (max-width: 720px){ .brand-logo{ height:34px } }
.nav {
	position: relative;
	display:flex; align-items:center; gap:12px;
	flex-shrink: 0;
}
.nav-menu {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	gap: 14px;
	flex-wrap: nowrap;
	white-space: nowrap;
}
.nav-menu a {
	color: var(--fg);
	text-decoration: none;
	padding: 10px 14px;
	border-radius: 10px;
	transition: 0.2s ease;
	font-weight: 500;
	white-space: nowrap;
}
.nav-menu a:hover {
	background: rgba(127, 127, 127, 0.08);
}
:root[data-theme="light"] .nav-menu a:hover { background: rgba(2, 6, 23, 0.06); }
.cta-link {
	background: linear-gradient(135deg, rgba(106, 169, 255, 0.2), rgba(139, 92, 246, 0.2));
	border: 1px solid rgba(106, 169, 255, 0.35);
}

/* 语言切换按钮 */
.lang-switch{
  margin-left:12px;
  padding:8px 12px;
  border-radius:12px;
  background:#203047;
  color:#e6eeff;
  border:1px solid rgba(255,255,255,.18);
  font-size:14px;
  line-height:1.2;
  cursor:pointer;
}
.lang-switch:hover{border-color:rgba(255,255,255,.28)}
.lang-switch:focus{outline:none; box-shadow:0 0 0 3px rgba(106,169,255,.25)}

/* 移动端菜单 */
.hamburger {
	display: none;
	border: none;
	background: transparent;
	padding: 8px;
	border-radius: 10px;
}
.hamburger:focus {
	outline: 2px solid var(--brand);
}
.hamburger-bar {
	display: block;
	width: 24px;
	height: 2px;
	background: #cfd6ea;
	margin: 5px 0;
	border-radius: 2px;
	transition: 0.2s;
}

@media (max-width: 880px) {
	.hamburger {
		display: block;
	}
	.nav-menu {
		position: absolute;
		right: 0;
		top: 56px;
		flex-direction: column;
		gap: 0;
		background: rgba(15, 21, 43, 0.98);
		border: 1px solid rgba(255, 255, 255, 0.08);
		border-radius: 14px;
		padding: 8px;
		width: 220px;
		box-shadow: var(--shadow);
		transform-origin: top right;
		transform: scale(0.98) translateY(-8px);
		opacity: 0;
		pointer-events: none;
		transition: 0.2s ease;
	}
	.nav-menu.open {
		opacity: 1;
		pointer-events: auto;
		transform: scale(1) translateY(0);
	}
	.nav-menu li {
		border-bottom: 1px solid rgba(255, 255, 255, 0.06);
	}
	.nav-menu li:last-child {
		border-bottom: none;
	}
}

/* Hero */
.hero {
	position: relative;
}
.hero-grid {
	display: grid;
	grid-template-columns: 1.1fr 0.9fr;
	gap: 40px;
	align-items: center;
}
.hero-content h1 {
	font-size: 44px;
	line-height: 1.1;
	margin: 0 0 10px 0;
}
.hero-sub {
	color: var(--muted);
	margin: 0 0 20px 0;
	font-size: 18px;
}
.hero-link{font-weight:800}
.hero-actions {
	display: flex;
	gap: 12px;
	align-items: center;
}
.btn {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 12px 18px;
	border-radius: 12px;
	font-weight: 600;
	text-decoration: none;
	border: 1px solid transparent;
	transition: 0.2s;
	cursor: pointer;
}
.btn-primary {
	background: linear-gradient(135deg, var(--brand), var(--brand-2));
	color: white;
}
.btn-primary:hover {
	filter: brightness(1.05);
}
.btn-ghost {
	background: transparent;
	color: var(--fg);
	border-color: rgba(127, 127, 127, 0.22);
}

/* 主题切换按钮 */
.theme-toggle{ margin-left:8px; padding:8px 10px; border-radius:12px; border:1px solid rgba(127,127,127,.22); background:transparent; color:var(--fg); cursor:pointer; }
.theme-toggle:hover{ background: rgba(127,127,127,.1); }
.theme-toggle:focus{ outline:none; box-shadow:0 0 0 3px rgba(106,169,255,.25) }

/* 浅色主题下卡片边框略深 */
:root[data-theme="light"] .card,
:root[data-theme="light"] .price-card,
:root[data-theme="light"] .case{
	border-color: rgba(0,0,0,.08);
}

.btn-outline {
	background: transparent;
	color: var(--fg);
	border-color: rgba(106, 169, 255, 0.45);
}
.btn.full {
	width: 100%;
	justify-content: center;
}

.hero-kpis {
	display: flex;
	gap: 22px;
	margin-top: 22px;
	flex-wrap: wrap;
}
.kpi {
	display: flex;
	flex-direction: column;
}
.kpi-num {
	font-size: 24px;
	font-weight: 800;
}
.kpi-label {
	color: var(--muted);
	font-size: 13px;
}

.hero-visual {
	display: flex;
	justify-content: center;
}
.glassy {
	width: min(420px, 100%);
	padding: 26px;
	text-align: center;
	border-radius: 20px;
	background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
	border: 1px solid rgba(255, 255, 255, 0.1);
	box-shadow: var(--shadow);
}
.glassy i {
	font-size: 30px;
	color: #b7c6ff;
}
.glassy h3 {
	margin: 10px 0 6px 0;
}
.glassy p {
	color: var(--muted);
	margin: 0;
}

.hero-bg-gradient {
	position: absolute;
	inset: auto 0 0 0;
	height: 240px;
	background: radial-gradient(60% 90% at 50% 100%, rgba(111, 182, 255, 0.28), transparent 70%);
	z-index: -1;
}

@media (max-width: 980px) {
	.hero-grid {
		grid-template-columns: 1fr;
	}
}

/* 卡片与网格 */
.grid {
	display: grid;
	gap: 16px;
}
.cards-4 {
	grid-template-columns: repeat(4, 1fr);
}
.cards-3 {
	grid-template-columns: repeat(3, 1fr);
}
@media (max-width: 1100px) {
	.cards-4 {
		grid-template-columns: repeat(2, 1fr);
	}
}
@media (max-width: 720px) {
	.cards-4,
	.cards-3 {
		grid-template-columns: 1fr;
	}
}

.card,
.price-card,
.case {
    background: var(--card);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius);
    padding: 18px;
    transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover,
.price-card:hover,
.case:hover {
	transform: translateY(-3px);
	box-shadow: var(--shadow);
}

.icon-wrap {
	width: 44px;
	height: 44px;
	border-radius: 12px;
	display: grid;
	place-items: center;
	margin-bottom: 10px;
	background: linear-gradient(135deg, rgba(106, 169, 255, 0.25), rgba(139, 92, 246, 0.25));
	border: 1px solid rgba(106, 169, 255, 0.45);
}
.icon-wrap i {
	color: #caddff;
}

.price-card .price {
	font-weight: 800;
	font-size: 28px;
	margin: 6px 0 12px 0;
}
.price-list {
	margin: 0 0 16px 0;
	padding: 0 0 0 16px;
	color: var(--muted);
}
.price-card.featured {
	background: linear-gradient(180deg, rgba(106, 169, 255, 0.12), rgba(139, 92, 246, 0.12));
}
.badge {
	display: inline-block;
	padding: 4px 10px;
	border-radius: 999px;
	background: linear-gradient(135deg, var(--brand), var(--brand-2));
	color: #fff;
	font-size: 12px;
	font-weight: 700;
	margin-bottom: 6px;
}

/* 关于我们 */
.about-grid {
	display: grid;
	grid-template-columns: 1.1fr 0.9fr;
	gap: 28px;
	align-items: center;
}
.stats {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 14px;
}
.stat {
	background: var(--card-2);
	border: 1px solid rgba(255, 255, 255, 0.08);
	border-radius: 16px;
	padding: 18px;
	text-align: center;
}
.stat span {
	font-size: 28px;
	font-weight: 800;
	display: block;
}
.stat small {
	color: var(--muted);
}
@media (max-width: 980px) {
	.about-grid {
		grid-template-columns: 1fr;
	}
}

/* 案例 */
.case header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	color: var(--muted);
	font-size: 13px;
}
.case .tag {
	padding: 4px 10px;
	border-radius: 999px;
	background: rgba(106, 169, 255, 0.14);
	color: #cfe1ff;
	border: 1px solid rgba(106, 169, 255, 0.35);
}
.link {
	color: #cfe1ff;
	text-decoration: none;
	border-bottom: 1px dashed rgba(207, 225, 255, 0.4);
}
.link:hover {
	border-bottom-style: solid;
}

/* 让首页 Hero 的“VO辅助”链接更显眼（绿色） */
.link.hero-link{
  color: var(--ok);
  border-bottom-color: rgba(34,197,94,.55);
  font-weight: 800;
}
.link.hero-link:hover{ color:#86efac; }

/* 指向 VO 支持页的链接统一加绿色强调 */
.link[href*="vo-support"]{ color: var(--ok); border-bottom-color: rgba(34,197,94,.55); font-weight:700; }
.link[href*="vo-support"]:hover{ color:#86efac; }

/* 引用 */
.quote {
	background: var(--card-2);
	border: 1px solid rgba(255, 255, 255, 0.08);
	padding: 24px;
	border-radius: 16px;
	font-size: 16px;
}
.quote p {
	margin: 0 0 8px 0;
}
.quote cite {
	color: var(--muted);
}

/* 联系我们 */
.contact-grid {
	display: grid;
	grid-template-columns: 0.9fr 1.1fr;
	gap: 28px;
	align-items: start;
}
.contact-side > *{ margin-bottom: 12px; }
.contact-card {
	background: var(--card);
	border: 1px solid rgba(255, 255, 255, 0.08);
	border-radius: 16px;
	padding: 18px;
}
.guarantees{background:var(--card); border:1px solid rgba(255,255,255,.08); border-radius:16px; padding:18px; margin-top:14px}
.guarantee-list{list-style:none; margin:8px 0 0 0; padding:0}
.guarantee-list li{color:#ef4444; font-weight:800; margin:8px 0}
.notice-card{background:var(--card-2); border:1px solid rgba(255,255,255,.08); padding:18px; border-radius:16px; margin-top:14px}
.contact-row {
	display: flex;
	align-items: center;
	gap: 10px;
	margin-bottom: 10px;
}
.contact-row i {
	color: #cde0ff;
}
.contact-row a {
	color: #e6eeff;
	text-decoration: none;
}
.qr-wrap {
	margin-top: 12px;
	text-align: center;
}
.qr-title {
	color: var(--muted);
	margin: 0 0 8px 0;
}
.qr-wrap img,
.qr-mini img {
    width: 330px;
    max-width: 100%;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.12);
}
/* 右侧跟随的二维码浮窗 */
.qr-float{
  position: fixed;
  right: 18px;
  top: 92px; /* 让出导航高度 */
  width: 300px;
  z-index: 1000;
  background: var(--card);
  border:1px solid rgba(255,255,255,.10);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 12px;
}
.qr-float .qr-title{ text-align:center; color:var(--muted); margin:8px 0 10px 0 }
.qr-float img{ width:100%; height:auto; border-radius:12px; border:1px solid rgba(255,255,255,.12) }
.qr-float .contact-row{ margin-bottom:6px }
@media (max-width: 980px){
  .qr-float{ display:none; }
}
@media (max-width: 980px) {
	.contact-grid {
		grid-template-columns: 1fr;
	}
}

/* 表单 */
.contact-form {
	background: var(--card);
	border: 1px solid rgba(255, 255, 255, 0.08);
	border-radius: 16px;
	padding: 18px;
}
.form-row {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 12px;
}
.form-group {
	display: flex;
	flex-direction: column;
	gap: 8px;
}
label {
	font-weight: 600;
}
input,
select,
textarea {
	background: #203047;
	color: var(--fg);
	border: 1px solid rgba(255, 255, 255, 0.12);
	border-radius: 12px;
	padding: 12px 12px;
	outline: none;
	transition: 0.15s;
}
input:focus,
select:focus,
textarea:focus {
	border-color: rgba(106, 169, 255, 0.55);
	box-shadow: 0 0 0 3px rgba(106, 169, 255, 0.18);
}
.form-status {
	margin-top: 10px;
	color: var(--muted);
}
@media (max-width: 720px) {
	.form-row {
		grid-template-columns: 1fr;
	}
}

/* 页脚 */
.footer {
	margin-top: 40px;
	border-top: 1px solid rgba(255, 255, 255, 0.08);
	background: rgba(27, 39, 56, 0.75);
}
.footer-grid {
	display: grid;
	grid-template-columns: 2fr 1fr 1fr 1.2fr;
	gap: 20px;
	padding: 28px 0;
}
.footer h4 {
	margin: 0 0 10px 0;
}
.muted {
	color: var(--muted);
	margin: 10px 0 0 0;
}
.list {
	list-style: none;
	margin: 0;
	padding: 0;
}
.list li {
	margin: 8px 0;
}
.list a {
	color: #e6eeff;
	text-decoration: none;
}
.qr-mini img {
	width: 140px;
	max-width: 100%;
	border-radius: 10px;
	border: 1px solid rgba(255, 255, 255, 0.12);
}
.footer-bottom {
	border-top: 1px solid rgba(255, 255, 255, 0.08);
	text-align: center;
	padding: 12px 0;
	color: var(--muted);
}

/* 无障碍隐藏文本 */
.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;
}

/* 客户反馈画廊 */
.feedback-grid {
	grid-template-columns: repeat(3, 1fr);
	gap: 16px;
}
.feedback-grid img {
	width: 100%;
	height: auto;
	max-height: 260px;
	display: block;
	border-radius: 12px;
	border: 1px solid rgba(255, 255, 255, 0.12);
	background: rgba(255, 255, 255, 0.02);
	object-fit: contain;
	padding: 4px;
}
@media (max-width: 1200px) {
	.feedback-grid {
		grid-template-columns: repeat(3, 1fr);
	}
}
@media (max-width: 900px) {
	.feedback-grid {
		grid-template-columns: repeat(2, 1fr);
	}
}
@media (max-width: 600px) {
	.feedback-grid {
		grid-template-columns: 1fr;
	}
}

/* 案例详情画廊 */
.case-gallery {
	grid-template-columns: repeat(3, 1fr);
	gap: 12px;
}
.case-gallery img {
	width: 100%;
	height: auto;
	display: block;
	border-radius: 12px;
	border: 1px solid rgba(255, 255, 255, 0.12);
	cursor: zoom-in;
}
@media (max-width: 820px) {
	.case-gallery {
		grid-template-columns: repeat(2, 1fr);
	}
}
@media (max-width: 520px) {
	.case-gallery {
		grid-template-columns: 1fr;
	}
}

/* 实战专栏画廊（OA / VO） */
.showcase-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
.showcase-grid img {
    width: 100%;
    height: auto;
    max-height: 260px;
    display: block;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,.12);
    background: rgba(255,255,255,.02);
    object-fit: contain;
    padding: 6px;
    cursor: zoom-in; /* 点击放大为蒙层，不跳走 */
}
.showcase-grid .showcase-item{position:relative; display:block}
.showcase-caption{
  position:absolute; left:10px; right:10px; bottom:10px;
  padding:6px 10px; border-radius:10px;
  color:#fff; font-weight:700; font-size:14px;
  background: linear-gradient(180deg, rgba(0,0,0,.15), rgba(0,0,0,.45));
  border:1px solid rgba(255,255,255,.18);
  text-shadow: 0 1px 2px rgba(0,0,0,.6);
}
@media (max-width: 900px){ .showcase-grid{ grid-template-columns: repeat(2,1fr) } }
@media (max-width: 600px){ .showcase-grid{ grid-template-columns: 1fr } }

/* 轻量图片查看蒙层 */
.lightbox-backdrop{ position:fixed; inset:0; background:rgba(0,0,0,.7); display:none; align-items:center; justify-content:center; z-index:2000; }
.lightbox-backdrop.open{ display:flex; }
.lightbox-img{ max-width:92vw; max-height:92vh; border-radius:14px; box-shadow:0 20px 60px rgba(0,0,0,.45); border:1px solid rgba(255,255,255,.15); }
.lightbox-close{ position:absolute; top:16px; right:16px; width:40px; height:40px; border-radius:50%; border:1px solid rgba(255,255,255,.25); background:rgba(0,0,0,.35); color:#fff; display:grid; place-items:center; cursor:pointer; }

/* 分页 */
.pagination{ display:flex; gap:8px; align-items:center; justify-content:center; margin-top:12px; flex-wrap:wrap; }
.pagination .page{ padding:8px 12px; border-radius:10px; border:1px solid rgba(127,127,127,.22); background:transparent; color:var(--fg); cursor:pointer; }
.pagination .page:hover{ background: rgba(127,127,127,.1); }
.pagination .page.active{ background: linear-gradient(135deg, var(--brand), var(--brand-2)); color:#fff; border-color: transparent; }
.pagination .page.disabled{ opacity:.5; cursor:not-allowed; }

/* 博客文章封面：完整显示不裁剪 */
.post-cover{ width:100%; height:auto; max-height:520px; object-fit:contain; border-radius:12px; background:rgba(255,255,255,.03); border:1px solid rgba(255,255,255,.12); }