/*
Theme Name: Celpower
Theme URI: https://celpower.local
Author: 企鹅助手
Author URI: https://www.workbuddy.cn
Description: 富能储能 CELPOWER 官网定制主题。VENNON 风格：白底 + 深蓝渐变 banner + 金色点缀；中英双语（Polylang 兼容）、产品/解决方案/投资开发/电站运营/服务中心/新闻中心、WhatsApp 浮窗、测算器预留。
Version: 2.0.0
Requires at least: 6.0
Tested up to: 6.8
Requires PHP: 8.0
License: GNU General Public License v2 or later
Text Domain: celpower
Tags: business, corporate, two-columns, translation-ready
*/

/* ========================================================================
   1. Design Tokens — VENNON 风格
   ======================================================================== */
:root {
  /* 主色调：深邃科技商务蓝（替代原工业蓝） */
  --c-navy-900: #0A1E47;   /* 最深：footer、header 底色 */
  --c-navy-800: #0F2A5E;   /* 深：banner 渐变起点 */
  --c-navy-700: #153A7E;   /* 中深 */
  --c-navy-600: #1E4FA8;   /* 中：链接、图标 */
  --c-navy-500: #2D6BD6;   /* 浅蓝：装饰 */

  /* 渐变（banner 关键） */
  --grad-banner: linear-gradient(135deg, #061637 0%, #0A1E47 40%, #153A7E 100%);
  --grad-banner-soft: linear-gradient(180deg, rgba(10,30,71,0) 0%, rgba(10,30,71,0.05) 100%);

  /* 金色点缀（VENNON 标志色） */
  --c-gold-500: #C9A24A;   /* 主金：标题、装饰短线 */
  --c-gold-400: #D4B563;   /* 浅金：hover */
  --c-gold-600: #B08A35;   /* 深金 */
  --c-gold-soft: #FAF1DC;  /* 金底浅色：卡片 hover 背景 */

  /* 中性色 */
  --c-ink: #1A2238;        /* 主文字 */
  --c-text: #2A3247;       /* 正文 */
  --c-muted: #6B7488;      /* 次要文字 */
  --c-line: #E5E8EE;       /* 分割线 */
  --c-line-soft: #F0F2F5;
  --c-bg: #FFFFFF;
  --c-bg-soft: #F7F8FA;    /* 卡片底色 */
  --c-bg-soft2: #F1F3F7;

  /* 状态色（保留，少量使用） */
  --c-success: #1F9D55;
  --c-warn: #E08A1F;

  /* 圆角 */
  --r-sm: 6px;
  --r: 10px;
  --r-lg: 16px;

  /* 阴影（更克制） */
  --shadow-1: 0 1px 2px rgba(10,30,71,0.04), 0 2px 8px rgba(10,30,71,0.04);
  --shadow-2: 0 4px 16px rgba(10,30,71,0.08);
  --shadow-3: 0 12px 36px rgba(10,30,71,0.12);
  --shadow-gold: 0 6px 20px rgba(201,162,74,0.18);

  /* 字体（保留中英栈） */
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  --font-num: "SF Pro Display", "Helvetica Neue", -apple-system, "Segoe UI", Arial, sans-serif;

  /* 间距 */
  --gutter: 24px;
  --container: 1200px;
}

/* ========================================================================
   2. Base
   ======================================================================== */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--c-navy-600); text-decoration: none; transition: color .2s; }
a:hover { color: var(--c-gold-600); }
h1, h2, h3, h4, h5 {
  line-height: 1.3;
  color: var(--c-ink);
  margin: 0 0 .5em;
  font-weight: 600;
}

.container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }
.section { padding: 80px 0; }
.section-tight { padding: 56px 0; }
.section-soft { background: var(--c-bg-soft); }

/* 通用排版 */
.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  color: var(--c-gold-600);
  font-size: 13px; font-weight: 600; letter-spacing: 2px;
  text-transform: uppercase;
}
.eyebrow::before {
  content: ""; display: inline-block; width: 28px; height: 2px;
  background: var(--c-gold-500);
}
.eyebrow-muted { color: var(--c-muted); }
.eyebrow-muted::before { background: var(--c-line); }

.section-head { max-width: 760px; margin: 0 0 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { font-size: 32px; color: var(--c-navy-800); margin: 12px 0 12px; }
.section-head p { color: var(--c-muted); font-size: 15.5px; margin: 0; }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border-radius: 4px;
  font-weight: 500; font-size: 14.5px;
  border: 1px solid transparent;
  cursor: pointer; transition: all .25s;
  text-decoration: none; line-height: 1.4;
}
.btn-primary {
  background: var(--c-gold-500);
  color: #fff;
  border-color: var(--c-gold-500);
}
.btn-primary:hover {
  background: var(--c-gold-600);
  border-color: var(--c-gold-600);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-gold);
}
.btn-outline {
  border-color: var(--c-navy-800);
  color: var(--c-navy-800);
  background: transparent;
}
.btn-outline:hover {
  background: var(--c-navy-800);
  color: #fff;
}
.btn-ghost {
  color: #fff;
  border-color: rgba(255,255,255,0.4);
  background: transparent;
}
.btn-ghost:hover {
  border-color: var(--c-gold-500);
  color: var(--c-gold-500);
}
.btn-link {
  color: var(--c-navy-600);
  padding: 0;
  border: 0;
  font-weight: 500;
  position: relative;
}
.btn-link::after { content: "→"; margin-left: 6px; transition: transform .2s; display: inline-block; }
.btn-link:hover::after { transform: translateX(4px); }

/* ========================================================================
   3. Top Bar
   ======================================================================== */
.topbar { background: var(--c-navy-900); color: rgba(255,255,255,0.75); font-size: 12.5px; }
.topbar .container { display: flex; justify-content: space-between; align-items: center; min-height: 36px; gap: 16px; flex-wrap: wrap; }
.topbar a { color: rgba(255,255,255,0.75); }
.topbar a:hover { color: var(--c-gold-500); }
.topbar-left, .topbar-right { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.topbar .tb-item { display: inline-flex; align-items: center; gap: 6px; }
.topbar svg { width: 13px; height: 13px; flex: none; opacity: .85; }

/* ========================================================================
   4. Header
   ======================================================================== */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--c-line);
  position: sticky; top: 0; z-index: 999;
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 76px; gap: 20px;
}
.site-brand { display: flex; align-items: center; gap: 12px; }
.brand-logo-link { display: block; line-height: 0; }
.brand-logo { width: 192px; height: auto; display: block; }
.site-brand .logo-mark {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  background: var(--c-navy-800);
  position: relative;
}
.site-brand .logo-mark::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px;
  background: var(--c-gold-500);
}
.site-brand .logo-mark svg, .site-brand .logo-mark img { width: 22px; height: 22px; color: #fff; }
.site-brand .logo-text { line-height: 1.1; }
.site-brand .logo-text strong { font-size: 19px; color: var(--c-navy-800); letter-spacing: .5px; display: block; font-weight: 700; }
.site-brand .logo-text span { font-size: 11px; color: var(--c-muted); letter-spacing: 2px; text-transform: uppercase; }

.main-nav { margin-left: auto; }
/* 条目间距由每项内边距控制（gap 置 0，避免与 padding 叠加后总间距过大） */
.main-nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 0; }
.main-nav ul li { position: relative; }
.main-nav ul li > a {
  display: flex; align-items: center; gap: 5px;
  padding: 10px 22px; color: var(--c-ink); font-weight: 500; font-size: 14.5px;
  position: relative;
}
/* 下划线 hover 效果（改用 ::before，让出 ::after 给下拉箭头）
   left/right 与 a 的左右内边距保持一致，否则会随间距变化错位 */
.main-nav ul li > a::before {
  content: ""; position: absolute; left: 22px; right: 22px; bottom: 4px; height: 2px;
  background: var(--c-gold-500); transform: scaleX(0); transform-origin: center;
  transition: transform .25s;
}
/* 仅给有子菜单的项右侧加下拉箭头 (内联 SVG，跨字体稳定) */
.main-nav ul li.menu-item-has-children > a::after {
  content: "";
  display: inline-block;
  width: 9px; height: 9px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8' fill='none' stroke='%23334155' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'><polyline points='1,2.5 6,7 11,2.5'/></svg>");
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  opacity: .7;
  transition: transform .25s, opacity .25s;
  margin-top: 1px;
}
.main-nav ul li.menu-item-has-children:hover > a::after,
.main-nav ul li.menu-item-has-children > a:hover::after {
  opacity: 1;
  transform: rotate(180deg);
}
/* hover 颜色的 ::before 下划线，类名迁移 */
.main-nav ul li > a:hover { color: var(--c-navy-800); }
.main-nav ul li > a:hover::before,
.main-nav ul li.current-menu-item > a::before { transform: scaleX(1); }

.main-nav ul li ul {
  display: none; position: absolute; top: 100%; left: 0;
  background: #fff; min-width: 220px;
  box-shadow: var(--shadow-2);
  border: 1px solid var(--c-line);
  padding: 8px; z-index: 100;
}
.main-nav ul li:hover > ul { display: block; }
.main-nav ul li ul li a { padding: 9px 14px; font-size: 14px; }
.main-nav ul li ul li a:hover { background: var(--c-bg-soft); color: var(--c-navy-800); }

.header-cta { display: flex; align-items: center; gap: 12px; }
.lang-switch { display: inline-flex; border: 1px solid var(--c-line); }
.lang-switch a {
  padding: 5px 12px; font-size: 12px; color: var(--c-muted);
  background: #fff; letter-spacing: 1px;
}
.lang-switch a.current-lang { background: var(--c-navy-800); color: #fff; }
.nav-toggle { display: none; background: none; border: 1px solid var(--c-line); padding: 8px 12px; font-size: 20px; cursor: pointer; }

/* ========================================================================
   5. Hero — VENNON 风格深蓝渐变 banner
   ======================================================================== */
.hero {
  position: relative; color: #fff; overflow: hidden;
  background: var(--grad-banner);
  padding: 0;
  border-bottom: 3px solid var(--c-gold-500);
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(800px 400px at 88% -10%, rgba(201,162,74,0.18), transparent 60%),
    radial-gradient(600px 400px at 5% 100%, rgba(45,107,214,0.18), transparent 60%);
}
.hero::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(201,162,74,0.5), transparent);
}
.hero .container { position: relative; z-index: 2; padding: 88px 20px 72px; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }

.hero .eyebrow { color: var(--c-gold-500); }
.hero .eyebrow::before { background: var(--c-gold-500); }

.hero h1 {
  color: #fff; font-size: 42px; font-weight: 600; line-height: 1.25;
  margin: 16px 0 18px; letter-spacing: -.5px;
}
.hero h1 .accent { color: var(--c-gold-500); }
.hero h1 strong { font-weight: 700; }

.hero p.lead {
  color: rgba(255,255,255,0.78); font-size: 16.5px;
  max-width: 580px; margin-bottom: 32px; line-height: 1.7;
}

.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }

/* Hero 右侧：产品系列总览（VENNON 风格） */
.hero-series {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-top: 2px solid var(--c-gold-500);
  padding: 32px 28px;
  position: relative;
  backdrop-filter: blur(8px);
}
.hero-series .series-title {
  display: flex; align-items: baseline; gap: 10px;
  margin-bottom: 24px; color: #fff;
}
.hero-series .series-title b {
  font-size: 24px; font-weight: 600; letter-spacing: 1px;
  font-family: var(--font-sans);
}
.hero-series .series-title em {
  color: var(--c-gold-500); font-style: normal; font-size: 13px;
  letter-spacing: 2px; text-transform: uppercase;
}
.hero-series .series-title .tag-zh { color: rgba(255,255,255,0.6); font-size: 14px; margin-left: auto; }

.series-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.series-item {
  border-left: 2px solid rgba(201,162,74,0.4);
  padding: 10px 14px;
  transition: border-color .2s;
}
.series-item:hover { border-left-color: var(--c-gold-500); }
.series-item b { color: #fff; font-size: 15px; display: block; font-weight: 500; }
.series-item b em { color: var(--c-gold-500); font-style: normal; font-weight: 600; }
.series-item span { color: rgba(255,255,255,0.55); font-size: 12px; margin-top: 2px; display: block; }

/* Hero 底部数据条（VENNON 顶部 05 风格） */
.hero-marquee {
  position: relative; z-index: 2;
  background: rgba(6,22,55,0.5);
  border-top: 1px solid rgba(255,255,255,0.08);
  backdrop-filter: blur(4px);
}
.hero-marquee .container {
  display: flex; gap: 36px; padding: 16px 20px; flex-wrap: wrap; align-items: center;
}
.hero-marquee .marquee-item {
  color: rgba(255,255,255,0.85); font-size: 13px;
  display: inline-flex; align-items: center; gap: 8px;
}
.hero-marquee .marquee-item::before {
  content: ""; width: 6px; height: 6px; background: var(--c-gold-500); flex: none;
}
.hero-marquee .marquee-item b { color: #fff; font-weight: 600; }

/* ========================================================================
   6. 业务模块区（VENNON 三模块风格）
   ======================================================================== */
.modules {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
  border: 1px solid var(--c-line);
  background: #fff;
}
.module-card {
  padding: 36px 32px; position: relative;
  border-right: 1px solid var(--c-line);
  transition: background .25s;
}
.module-card:last-child { border-right: 0; }
.module-card:hover { background: var(--c-bg-soft); }
.module-card .num {
  font-size: 36px; color: var(--c-gold-500); font-weight: 300;
  font-family: var(--font-num);
  letter-spacing: -1px; line-height: 1; margin-bottom: 16px;
  display: flex; align-items: baseline; gap: 8px;
}
.module-card .num em { font-style: normal; font-size: 13px; color: var(--c-muted); letter-spacing: 2px; text-transform: uppercase; }
.module-card h3 {
  font-size: 20px; color: var(--c-navy-800);
  margin: 0 0 8px; font-weight: 600;
}
.module-card h3 em { color: var(--c-gold-500); font-style: normal; }
.module-card .sub { color: var(--c-muted); font-size: 13.5px; margin: 0 0 20px; }
.module-card ul { list-style: none; padding: 0; margin: 0; }
.module-card ul li {
  font-size: 13.5px; color: var(--c-text);
  padding: 7px 0 7px 16px; position: relative; line-height: 1.6;
}
.module-card ul li::before {
  content: ""; position: absolute; left: 0; top: 15px;
  width: 6px; height: 1px; background: var(--c-gold-500);
}

/* ========================================================================
   7. 阶段卡片 01/02/03（VENNON 阶段卡风格）
   ======================================================================== */
.stages { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.stage-card {
  background: #fff; border: 1px solid var(--c-line);
  padding: 32px 28px; transition: all .25s;
  position: relative; overflow: hidden;
}
.stage-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--c-gold-500); transform: scaleY(0); transform-origin: top;
  transition: transform .3s;
}
.stage-card:hover { border-color: var(--c-gold-500); box-shadow: var(--shadow-2); }
.stage-card:hover::before { transform: scaleY(1); }

.stage-card .stage-num {
  display: flex; align-items: baseline; gap: 8px;
  margin-bottom: 18px;
}
.stage-card .stage-num b {
  font-size: 36px; font-weight: 300; color: var(--c-navy-800);
  font-family: var(--font-num); line-height: 1; letter-spacing: -1px;
}
.stage-card .stage-num span {
  font-size: 12px; color: var(--c-muted);
  letter-spacing: 1.5px; text-transform: uppercase;
}
.stage-card .stage-name {
  color: var(--c-gold-600); font-size: 14px; font-weight: 500;
  margin-bottom: 6px; letter-spacing: .5px;
}
.stage-card h3 {
  font-size: 18px; color: var(--c-navy-800);
  margin: 0 0 18px; font-weight: 600;
}
.stage-card ul { list-style: none; padding: 0; margin: 0; }
.stage-card ul li {
  font-size: 13.5px; color: var(--c-text);
  padding: 8px 0; border-bottom: 1px dashed var(--c-line-soft);
  display: flex; gap: 10px; align-items: flex-start;
}
.stage-card ul li:last-child { border-bottom: 0; }
.stage-card ul li b { color: var(--c-navy-800); font-weight: 500; min-width: 90px; }
.stage-card ul li span { color: var(--c-muted); flex: 1; line-height: 1.55; }

/* ========================================================================
   8. 标准卡片
   ======================================================================== */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff; border: 1px solid var(--c-line);
  padding: 28px 26px; transition: all .25s; display: block; color: inherit;
}
a.card:hover {
  border-color: var(--c-gold-500);
  box-shadow: var(--shadow-2);
  transform: translateY(-2px);
  color: inherit;
}
.card .icon {
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  background: var(--c-bg-soft); color: var(--c-navy-800);
  margin-bottom: 16px;
  border-left: 2px solid var(--c-gold-500);
}
.card h3 { font-size: 17px; margin-bottom: 8px; color: var(--c-navy-800); }
.card p { color: var(--c-muted); font-size: 14px; margin: 0; line-height: 1.65; }
.card .card-link {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 14px; font-size: 13.5px; font-weight: 500;
  color: var(--c-gold-600);
}

/* product card */
.product-card .thumb {
  height: 200px; margin: -28px -26px 18px;
  background: linear-gradient(135deg, var(--c-navy-800), var(--c-navy-600));
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.85); font-size: 14px; font-weight: 500;
  position: relative; overflow: hidden;
}
.product-card .thumb::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 3px; right: 0;
  background: var(--c-gold-500);
}
.product-card .tag {
  display: inline-block; font-size: 12px; color: var(--c-gold-600);
  border: 1px solid var(--c-gold-500); padding: 2px 10px;
  margin-bottom: 10px; letter-spacing: .5px;
}
.product-card .model { font-size: 12px; color: var(--c-muted); margin-top: 6px; letter-spacing: 1px; }

/* ========================================================================
   9. 分屏（图文混排）
   ======================================================================== */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split .visual {
  background: var(--grad-banner);
  border-top: 3px solid var(--c-gold-500);
  min-height: 360px; display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.85); font-size: 14px; position: relative; overflow: hidden;
}
.split .visual::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 70% 30%, rgba(201,162,74,0.15), transparent 60%);
}
.split .visual > * { position: relative; z-index: 1; }
.split ul.feats { list-style: none; padding: 0; margin: 16px 0 0; }
.split ul.feats li {
  padding: 14px 0 14px 30px; position: relative;
  border-bottom: 1px solid var(--c-line-soft);
}
.split ul.feats li::before {
  content: ""; position: absolute; left: 0; top: 22px;
  width: 16px; height: 2px; background: var(--c-gold-500);
}
.split ul.feats li b { display: block; color: var(--c-navy-800); font-size: 15.5px; font-weight: 500; }
.split ul.feats li span { color: var(--c-muted); font-size: 13.5px; }

/* ========================================================================
   10. 数据条（深底）
   ======================================================================== */
.stats-band {
  background: var(--c-navy-800); color: #fff;
  position: relative; overflow: hidden;
}
.stats-band::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px;
  background: var(--c-gold-500);
}
.stats-band::after {
  content: ""; position: absolute; right: -100px; top: -100px;
  width: 400px; height: 400px; border-radius: 50%;
  background: radial-gradient(circle, rgba(201,162,74,0.1), transparent 60%);
}
.stats-band .container { position: relative; z-index: 1; }
.stats-band .grid-4 .stat { text-align: center; padding: 24px 16px; }
.stats-band .stat b {
  font-size: 38px; display: block; color: #fff;
  font-family: var(--font-num); font-weight: 300; line-height: 1.1; letter-spacing: -1px;
}
.stats-band .stat b em {
  font-style: normal; color: var(--c-gold-500);
  font-size: 22px; font-weight: 500;
}
.stats-band .stat span {
  color: rgba(255,255,255,0.7); font-size: 13px;
  margin-top: 6px; display: block; letter-spacing: 1px;
}

/* ========================================================================
   11. 新闻
   ======================================================================== */
.news-list .news-item {
  display: flex; gap: 20px; padding: 22px 0;
  border-bottom: 1px solid var(--c-line);
  align-items: flex-start;
}
.news-list .news-item time {
  flex: none; width: 80px; text-align: center;
  background: var(--c-bg-soft);
  border-top: 2px solid var(--c-gold-500);
  padding: 12px 6px;
}
.news-list .news-item time b { display: block; font-size: 24px; color: var(--c-navy-800); font-weight: 500; line-height: 1.1; font-family: var(--font-num); }
.news-list .news-item time span { font-size: 11px; color: var(--c-muted); letter-spacing: 1px; }
.news-list .news-item h3 { font-size: 16px; margin: 0 0 6px; color: var(--c-ink); }
.news-list .news-item:hover h3 { color: var(--c-navy-800); }
.news-list .news-item p { margin: 0; color: var(--c-muted); font-size: 13.5px; line-height: 1.6; }

/* ========================================================================
   12. CTA（深蓝带金色装饰）
   ======================================================================== */
.cta-band {
  position: relative; overflow: hidden;
  background: var(--c-navy-800); color: #fff;
  padding: 64px 48px; text-align: center;
  border-top: 3px solid var(--c-gold-500);
}
.cta-band::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 100%;
  background:
    radial-gradient(circle at 20% 50%, rgba(201,162,74,0.12), transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(45,107,214,0.12), transparent 50%);
}
.cta-band > * { position: relative; z-index: 1; }
.cta-band .eyebrow { color: var(--c-gold-500); justify-content: center; }
.cta-band h2 { color: #fff; font-size: 30px; margin: 12px 0 12px; }
.cta-band p { color: rgba(255,255,255,0.78); margin-bottom: 28px; max-width: 600px; margin-left: auto; margin-right: auto; }

/* ========================================================================
   13. 内页头图
   ======================================================================== */
.page-hero {
  background: var(--grad-banner);
  color: #fff; padding: 64px 0; position: relative;
  border-bottom: 3px solid var(--c-gold-500);
}
.page-hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(800px 300px at 90% 0%, rgba(201,162,74,0.12), transparent 60%);
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { color: #fff; font-size: 30px; margin: 12px 0 0; }
.page-hero .crumbs { color: rgba(255,255,255,0.6); font-size: 13px; margin-top: 12px; letter-spacing: .5px; }
.page-hero .crumbs a { color: rgba(255,255,255,0.6); }
.page-hero .crumbs a:hover { color: var(--c-gold-500); }
.page-hero .crumbs .sep { margin: 0 8px; color: var(--c-gold-500); }

/* ========================================================================
   14. 文章正文
   ======================================================================== */
.entry-content { max-width: 900px; margin: 0 auto; }
.entry-content h2 { color: var(--c-navy-800); margin-top: 36px; font-size: 24px; }
.entry-content h2::before {
  content: ""; display: inline-block; width: 4px; height: 18px;
  background: var(--c-gold-500); margin-right: 10px; vertical-align: -2px;
}
.entry-content h3 { color: var(--c-navy-800); margin-top: 28px; }
.entry-content p, .entry-content li { color: var(--c-text); line-height: 1.85; }
.entry-content table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; }
.entry-content table th, .entry-content table td { border: 1px solid var(--c-line); padding: 10px 14px; }
.entry-content table th { background: var(--c-bg-soft); color: var(--c-navy-800); font-weight: 600; }
.entry-content blockquote {
  border-left: 3px solid var(--c-gold-500);
  background: var(--c-bg-soft);
  padding: 16px 20px; margin: 20px 0; color: var(--c-text);
  font-style: normal;
}

/* ========================================================================
   15. 表单
   ======================================================================== */
.form-wrap {
  background: #fff; border: 1px solid var(--c-line);
  padding: 36px 36px; box-shadow: var(--shadow-1);
  border-top: 3px solid var(--c-gold-500);
}
.form-wrap label { display: block; font-weight: 500; font-size: 13.5px; margin: 18px 0 6px; color: var(--c-ink); }
.form-wrap input[type="text"], .form-wrap input[type="email"], .form-wrap input[type="tel"],
.form-wrap input[type="number"], .form-wrap select, .form-wrap textarea {
  width: 100%; padding: 11px 14px;
  border: 1px solid var(--c-line); border-radius: 2px;
  font-size: 14.5px; font-family: inherit; background: #fff;
  transition: border-color .2s, box-shadow .2s;
}
.form-wrap input:focus, .form-wrap textarea:focus, .form-wrap select:focus {
  outline: none; border-color: var(--c-navy-800);
  box-shadow: 0 0 0 3px rgba(201,162,74,0.12);
}
.form-wrap .submit-row { margin-top: 24px; }

/* ========================================================================
   16. Footer
   ======================================================================== */
/* 深蓝底五栏（VENNON 风格）：关于 / 产品 / 解决方案 / 联系 / 扫码 */
.site-footer {
  background: var(--c-navy-900);
  background-image: linear-gradient(180deg, #0A1E47 0%, #081936 100%);
  color: rgba(255,255,255,0.72);
  padding: 56px 0 0;
  border-top: 3px solid var(--c-gold-500);
}
.site-footer .grid { grid-template-columns: repeat(5, 1fr); gap: 28px; align-items: start; }
.site-footer h4 {
  color: #fff;
  font-size: 16px; font-weight: 700;
  letter-spacing: .3px; line-height: 1.4;
  margin: 0 0 18px; padding-bottom: 12px;
  position: relative;
}
/* 标题下的金色短线（VENNON 标志元素） */
.site-footer h4::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 28px; height: 2px; background: var(--c-gold-500);
}
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer ul li { padding: 5px 0; }
.site-footer ul li a { color: rgba(255,255,255,0.72); font-size: 13.5px; line-height: 1.6; transition: color .2s; }
.site-footer ul li a:hover { color: var(--c-gold-400); }

/* 联系方式：圆形图标 */
.site-footer .f-contact li { display: flex; gap: 11px; align-items: flex-start; font-size: 13.5px; line-height: 1.6; padding: 6px 0; }
.site-footer .f-contact .ic {
  width: 28px; height: 28px; border-radius: 50%;
  background: rgba(201,162,74,0.16); color: var(--c-gold-400);
  border: 1px solid rgba(201,162,74,0.34);
  display: inline-flex; align-items: center; justify-content: center;
  flex: none; margin-top: 1px;
}
.site-footer .f-contact .ic svg { width: 14px; height: 14px; }
.site-footer .f-contact a { color: rgba(255,255,255,0.72); }
.site-footer .f-contact a:hover { color: var(--c-gold-400); }

/* 公司一句话简介 */
.site-footer .f-blurb {
  margin: 16px 0 0; padding-top: 14px;
  border-top: 1px solid rgba(255,255,255,0.12);
  font-size: 12.5px; line-height: 1.75; color: rgba(255,255,255,0.5);
}

/* 社交圆图标（真实品牌色，同参考图） */
.site-footer .f-social { display: flex; gap: 9px; margin-top: 14px; }
.site-footer .f-social a {
  width: 32px; height: 32px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; transition: transform .2s, opacity .2s;
}
.site-footer .f-social a:hover { transform: translateY(-2px); color: #fff; opacity: .92; }
.site-footer .f-social .wa { background: #25D366; }
.site-footer .f-social .wx { background: #07C160; }
.site-footer .f-social .li { background: #0A66C2; }
.site-footer .f-social .fb { background: #1877F2; }
.site-footer .f-social svg { width: 16px; height: 16px; }

/* 二维码区：栏目标题「扫码关注」+ WhatsApp / 微信 两块竖排 */
.site-footer .f-qr-body { display: grid; grid-template-columns: 1fr; gap: 22px; }
.site-footer .f-qr figure { margin: 0; min-width: 0; }
/* 标签字体与 3/4 列列表项完全一致（13.5px / 400 / 白 72%） */
.site-footer .f-qr .f-qr-label {
  display: block; margin: 0 0 7px;
  font-size: 13.5px; font-weight: 400; line-height: 1.6;
  color: rgba(255,255,255,0.72); letter-spacing: 0;
}
.site-footer .f-qr-num {
  margin: 0 0 8px; font-size: 11.5px; color: rgba(255,255,255,0.55);
  line-height: 1.4; word-break: break-all;
}
/* 二维码尺寸 = 原 180px 的 75% */
.site-footer .f-qr img {
  display: block;
  width: 100%; max-width: 135px; height: auto;
  padding: 5px; background: #fff; border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0,0,0,.3);
}

/* 版权条 */
.site-footer .f-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  margin-top: 44px; padding: 18px 0 22px;
  text-align: center; font-size: 12.5px; color: rgba(255,255,255,0.45);
}

/* ========================================================================
   17. WhatsApp float
   ======================================================================== */
.wa-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 9999;
  width: 56px; height: 56px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: #25D366; color: #fff;
  box-shadow: 0 6px 20px rgba(37,211,102,0.4);
  transition: transform .25s;
}
.wa-float:hover { transform: scale(1.1); color: #fff; }
.wa-float svg { width: 32px; height: 32px; }

/* ========================================================================
   18. 测算器占位
   ======================================================================== */
.calc-placeholder {
  background: var(--c-bg-soft);
  border: 1px dashed var(--c-line);
  border-top: 3px solid var(--c-gold-500);
  padding: 72px 40px; text-align: center;
}
.calc-placeholder .big { font-size: 56px; color: var(--c-gold-500); }
.calc-placeholder h3 { margin: 16px 0 8px; color: var(--c-navy-800); }
.calc-placeholder p { color: var(--c-muted); max-width: 520px; margin: 0 auto 24px; }

/* ========================================================================
   19. Responsive
   ======================================================================== */
@media (max-width: 980px) {
  .brand-logo { width: 168px; }
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero h1 { font-size: 34px; }
  .modules, .stages { grid-template-columns: 1fr; }
  .module-card { border-right: 0; border-bottom: 1px solid var(--c-line); }
  .module-card:last-child { border-bottom: 0; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: 32px; }
  .site-footer .grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .main-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--c-line); padding: 12px 20px; box-shadow: var(--shadow-2); }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; gap: 0; }
  .main-nav ul li > a { padding: 10px 0; }
  .main-nav ul li > a::before { left: 0; right: 0; }
  .main-nav ul li ul { position: static; box-shadow: none; padding-left: 16px; display: none; border: 0; }
  .main-nav ul li.open > ul { display: block; }
  .nav-toggle { display: block; }
  .section { padding: 56px 0; }
  .cta-band { padding: 48px 24px; }
  .form-wrap { padding: 24px 20px; }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .site-footer .grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 28px; }
  .hero .container { padding: 64px 20px 48px; }
  .topbar-right { display: none; }
  .brand-logo { width: 150px; }
  .series-grid { grid-template-columns: 1fr; }
  .hero-marquee .container { gap: 16px; }
}