/* ============================================================
   武汉沙淘金 · 智能体开发专题营销站 · 专属视觉设计系统
   主题：沙淘金（金曜数智 / 深空湛蓝 / 极光流体 / 科技大厂质感）
   主体：武汉沙淘金信息技术有限公司 · 背靠湖北十团网络科技股份有限公司
   服务范围：立足武汉光谷 · 辐射华中 · 深度企业级落地
   ============================================================ */

:root {
  /* 沙淘金品牌色彩系统：金曜 + 深空深蓝 + 极光青 */
  --primary: #2563eb;           /* 智算主蓝 */
  --primary-dark: #1d4ed8;
  --primary-light: #3b82f6;
  --primary-soft: rgba(37, 99, 235, 0.08);

  --gold: #f59e0b;              /* 沙淘金·金曜 */
  --gold-dark: #d97706;
  --gold-light: #fbbf24;
  --gold-glow: rgba(245, 158, 11, 0.25);
  --gold-soft: rgba(245, 158, 11, 0.08);

  --accent: #06b6d4;            /* 智能体极光青 */
  --accent-light: #38bdf8;
  --accent-soft: rgba(6, 182, 212, 0.08);

  --purple: #8b5cf6;
  --green: #10b981;
  --green-soft: rgba(16, 185, 129, 0.1);
  --red: #ef4444;

  /* 中性背景与正文 */
  --dark: #070d1e;              /* 极夜深空 */
  --dark-card: #0d1730;
  --dark-border: rgba(255, 255, 255, 0.12);
  --ink: #0f172a;               /* 标题深黑 */
  --text: #334155;              /* 正文墨灰 */
  --text-muted: #64748b;        /* 次要文字 */
  --text-light: #94a3b8;
  --gray-bg: #f8fafc;           /* 浅灰底 */
  --gray-card: #f1f5f9;
  --border: #e2e8f0;
  --border-subtle: #edf2f7;
  --white: #ffffff;

  /* 圆角与阴影 */
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 9999px;

  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 16px 40px rgba(15, 23, 42, 0.09);
  --shadow-lg: 0 24px 60px rgba(15, 23, 42, 0.13);
  --shadow-gold: 0 12px 36px rgba(245, 158, 11, 0.28);
  --shadow-primary: 0 14px 40px rgba(37, 99, 235, 0.28);

  /* 高级渐变 */
  --grad-hero: radial-gradient(circle at 85% 15%, #1e293b 0%, #070d1e 65%, #050814 100%);
  --grad-gold: linear-gradient(135deg, #f59e0b 0%, #fbbf24 50%, #d97706 100%);
  --grad-primary: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
  --grad-badge: linear-gradient(135deg, rgba(245, 158, 11, 0.15) 0%, rgba(37, 99, 235, 0.12) 100%);
  --grad-card-dark: linear-gradient(145deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.02) 100%);
}

/* 基础重置 */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Segoe UI", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  color: var(--text);
  line-height: 1.7;
  background: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ============ 通用头部 ============ */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  transition: all 0.3s;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo-box { display: flex; align-items: center; gap: 14px; text-decoration: none; }
.logo-img { height: 44px; width: auto; border-radius: 10px; object-fit: contain; }
.logo-title-wrap { display: flex; flex-direction: column; }
.logo-brand { font-size: 19px; font-weight: 800; color: var(--ink); letter-spacing: -0.3px; display: flex; align-items: center; gap: 6px; }
.logo-brand .gold-tag { font-size: 11px; font-weight: 700; color: #92400e; background: #fef3c7; border: 1px solid #fde68a; padding: 2px 7px; border-radius: 4px; }
.logo-sub { font-size: 11.5px; color: var(--text-muted); font-weight: 500; }

.header-right { display: flex; align-items: center; gap: 20px; }
.header-phone-box {
  display: flex; align-items: center; gap: 10px;
  background: var(--gray-bg); border: 1px solid var(--border);
  padding: 8px 16px; border-radius: var(--radius-pill);
}
.header-phone-icon {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--gold-soft); color: var(--gold-dark);
  display: flex; align-items: center; justify-content: center;
}
.header-phone-icon svg { width: 14px; height: 14px; fill: currentColor; }
.header-phone-info { display: flex; flex-direction: column; }
.header-phone-label { font-size: 11px; color: var(--text-muted); line-height: 1; margin-bottom: 2px; }
.header-phone-num { font-size: 16px; font-weight: 800; color: var(--ink); line-height: 1.1; letter-spacing: 0.2px; }
.btn-header-cta {
  background: var(--grad-gold); color: #fff;
  font-weight: 700; font-size: 14px; padding: 10px 22px;
  border-radius: var(--radius-pill); box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
  transition: all 0.25s; display: inline-flex; align-items: center; gap: 6px;
}
.btn-header-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(245, 158, 11, 0.45); }

@media(max-width: 768px) {
  .logo-sub { display: none; }
  .header-phone-box { display: none; }
  .btn-header-cta { padding: 8px 16px; font-size: 13px; }
}

/* ============ 通用Section标题系统 ============ */
.section { padding: 92px 0; position: relative; }
.section-gray { background: var(--gray-bg); }
.section-dark { background: var(--dark); color: #fff; }

.sec-head { text-align: center; margin-bottom: 56px; max-width: 860px; margin-left: auto; margin-right: auto; }
.sec-kicker {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--grad-badge); border: 1px solid rgba(245, 158, 11, 0.25);
  color: var(--gold-dark); font-size: 12.5px; font-weight: 700; letter-spacing: 0.5px;
  padding: 6px 18px; border-radius: var(--radius-pill); margin-bottom: 16px;
}
.section-dark .sec-kicker {
  background: rgba(245, 158, 11, 0.15); border-color: rgba(245, 158, 11, 0.4);
  color: var(--gold-light);
}
.sec-title {
  font-size: clamp(28px, 4vw, 40px); font-weight: 800; color: var(--ink);
  line-height: 1.25; margin-bottom: 16px; letter-spacing: -0.5px;
}
.section-dark .sec-title { color: #fff; }
.sec-title span.hl-gold {
  background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.sec-title span.hl-blue {
  background: var(--grad-primary);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.sec-desc {
  font-size: 16.5px; color: var(--text-muted); line-height: 1.8;
  max-width: 720px; margin: 0 auto;
}
.section-dark .sec-desc { color: rgba(255, 255, 255, 0.7); }

/* ============ Hero主视觉区（深空曜石科技+金曜微光） ============ */
.hero {
  position: relative; background: var(--grad-hero);
  color: #fff; padding: 100px 0 130px; overflow: hidden;
}
.hero-glow-gold {
  position: absolute; top: -120px; right: 5%; width: 540px; height: 540px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.18) 0%, transparent 70%);
  filter: blur(40px); pointer-events: none; z-index: 1;
}
.hero-glow-blue {
  position: absolute; bottom: -100px; left: 2%; width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.16) 0%, transparent 70%);
  filter: blur(40px); pointer-events: none; z-index: 1;
}
.hero-grid-bg {
  position: absolute; inset: 0; pointer-events: none; opacity: 0.15;
  background-image: linear-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse at center, #000 40%, transparent 80%);
  mask-image: radial-gradient(ellipse at center, #000 40%, transparent 80%);
}
.hero-inner {
  position: relative; z-index: 3; display: grid;
  grid-template-columns: 1.25fr 0.95fr; gap: 56px; align-items: center;
}
.hero-text { max-width: 660px; }

.hero-pill {
  display: inline-flex; align-items: center; gap: 10px;
  background: rgba(255, 255, 255, 0.08); border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 8px 18px; border-radius: var(--radius-pill); font-size: 13px; font-weight: 600;
  margin-bottom: 24px; backdrop-filter: blur(10px);
}
.hero-pill .dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--gold);
  box-shadow: 0 0 10px var(--gold); animation: pulseDot 2s infinite;
}
@keyframes pulseDot { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.4; transform: scale(0.85); } }

.hero h1 {
  font-size: clamp(32px, 4.6vw, 50px); line-height: 1.2; font-weight: 800;
  letter-spacing: -0.8px; margin-bottom: 22px;
}
.hero h1 .highlight-gold {
  background: linear-gradient(120deg, #f59e0b 0%, #fbbf24 60%, #ffd166 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero h1 .highlight-cyan {
  background: linear-gradient(120deg, #38bdf8 0%, #2563eb 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-desc {
  font-size: 17px; color: rgba(255, 255, 255, 0.82); line-height: 1.85; margin-bottom: 28px;
}
.hero-desc strong { color: #fff; font-weight: 700; }

.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 36px; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 7px;
  background: rgba(255, 255, 255, 0.07); border: 1px solid rgba(255, 255, 255, 0.16);
  padding: 7px 15px; border-radius: var(--radius-sm); font-size: 13px; font-weight: 500;
  color: rgba(255, 255, 255, 0.9); backdrop-filter: blur(6px);
}
.hero-tag svg { width: 14px; height: 14px; fill: var(--gold-light); }

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-hero-primary {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--grad-gold); color: #fff; padding: 15px 36px;
  border-radius: var(--radius-pill); font-size: 16px; font-weight: 700;
  box-shadow: 0 10px 30px rgba(245, 158, 11, 0.38); transition: all 0.25s; cursor: pointer; border: none;
}
.btn-hero-primary:hover { transform: translateY(-3px); box-shadow: 0 16px 40px rgba(245, 158, 11, 0.5); }
.btn-hero-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255, 255, 255, 0.09); border: 1.5px solid rgba(255, 255, 255, 0.25);
  color: #fff; padding: 14px 28px; border-radius: var(--radius-pill); font-size: 15px; font-weight: 600;
  transition: all 0.25s;
}
.btn-hero-secondary:hover { background: rgba(255, 255, 255, 0.18); border-color: #fff; }

/* Hero右侧智能体交互卡片 */
.hero-widget {
  background: rgba(13, 23, 48, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-xl); padding: 28px;
  backdrop-filter: blur(20px); box-shadow: 0 25px 60px rgba(0, 0, 0, 0.4);
}
.widget-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px; padding-bottom: 14px; border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.widget-title {
  font-size: 15px; font-weight: 700; color: #fff; display: flex; align-items: center; gap: 8px;
}
.widget-status {
  font-size: 12px; color: var(--green); background: rgba(16, 185, 129, 0.15);
  padding: 3px 10px; border-radius: var(--radius-pill); border: 1px solid rgba(16, 185, 129, 0.3);
}
.widget-phone-card {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.12) 0%, rgba(37, 99, 235, 0.12) 100%);
  border: 1px solid rgba(245, 158, 11, 0.3); border-radius: var(--radius);
  padding: 18px; text-align: center; margin-bottom: 14px;
}
.widget-phone-label { font-size: 12px; color: rgba(255, 255, 255, 0.75); margin-bottom: 6px; }
.widget-phone-val { font-size: 24px; font-weight: 800; color: #fff; letter-spacing: 0.5px; }
.widget-qr-card {
  background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius); padding: 18px; display: flex; align-items: center; gap: 16px;
}
.widget-qr-img { width: 92px; height: 92px; border-radius: 10px; background: #fff; padding: 4px; flex-shrink: 0; }
.widget-qr-desc h4 { font-size: 14px; font-weight: 700; color: #fff; margin-bottom: 4px; }
.widget-qr-desc p { font-size: 12px; color: rgba(255, 255, 255, 0.65); line-height: 1.5; }
.widget-badge-row {
  display: flex; gap: 8px; margin-top: 14px; font-size: 11.5px; color: rgba(255, 255, 255, 0.7);
  justify-content: space-around; padding-top: 10px; border-top: 1px solid rgba(255, 255, 255, 0.08);
}

@media(max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-widget { max-width: 520px; margin: 0 auto; }
}

/* ============ 权威背书展示区（沙淘金+十团网络双核背书） ============ */
.dual-backing-bar {
  background: #ffffff; border-bottom: 1px solid var(--border);
  padding: 40px 0; position: relative; z-index: 10;
}
.backing-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center;
}
.backing-item {
  display: flex; align-items: center; gap: 20px;
  background: var(--gray-bg); border: 1px solid var(--border);
  padding: 22px 26px; border-radius: var(--radius-lg); transition: all 0.3s;
}
.backing-item:hover { border-color: rgba(245, 158, 11, 0.4); box-shadow: var(--shadow); }
.backing-icon-box {
  width: 56px; height: 56px; border-radius: 14px;
  background: var(--gold-soft); color: var(--gold-dark);
  display: flex; align-items: center; justify-content: center; font-size: 26px; flex-shrink: 0;
}
.backing-item-info h4 { font-size: 16px; font-weight: 800; color: var(--ink); margin-bottom: 4px; }
.backing-item-info p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

.cert-strip {
  display: flex; gap: 16px; overflow-x: auto; padding: 24px 0 8px;
  scrollbar-width: thin; -webkit-overflow-scrolling: touch;
}
.cert-card-mini {
  flex: 0 0 260px; background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px; display: flex; align-items: center; gap: 12px;
  box-shadow: var(--shadow-sm); transition: all 0.25s;
}
.cert-card-mini:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--gold); }
.cert-thumb { width: 48px; height: 48px; object-fit: contain; border-radius: 6px; background: #fafafa; padding: 2px; }
.cert-meta h5 { font-size: 13px; font-weight: 700; color: var(--ink); margin-bottom: 2px; }
.cert-meta span { font-size: 11px; color: var(--gold-dark); font-weight: 600; }

@media(max-width: 800px) {
  .backing-grid { grid-template-columns: 1fr; gap: 16px; }
}

/* ============ 服务卡片矩阵 ============ */
.services-quad { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.service-item-card {
  background: #ffffff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 32px 24px; transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: var(--shadow-sm); position: relative; overflow: hidden; display: flex; flex-direction: column;
}
.service-item-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--grad-gold); opacity: 0; transition: opacity 0.3s;
}
.service-item-card:hover {
  transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent;
}
.service-item-card:hover::before { opacity: 1; }
.service-icon-wrap {
  width: 58px; height: 58px; border-radius: 16px; margin-bottom: 20px;
  display: flex; align-items: center; justify-content: center; font-size: 28px;
}
.service-item-card h3 { font-size: 18px; font-weight: 800; color: var(--ink); margin-bottom: 10px; }
.service-item-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; flex-grow: 1; margin-bottom: 16px; }
.service-points { list-style: none; padding-top: 12px; border-top: 1px dashed var(--border); }
.service-points li { font-size: 12.5px; color: var(--text); padding: 4px 0; display: flex; align-items: center; gap: 6px; }
.service-points li::before { content: "•"; color: var(--gold-dark); font-weight: bold; font-size: 14px; }

@media(max-width: 1024px) { .services-quad { grid-template-columns: 1fr 1fr; } }
@media(max-width: 600px) { .services-quad { grid-template-columns: 1fr; } }

/* ============ 技术架构透视 ============ */
.tech-matrix { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.tech-item-box {
  background: #ffffff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 28px 24px; transition: all 0.3s; position: relative;
}
.tech-item-box:hover {
  transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: rgba(37, 99, 235, 0.3);
}
.tech-icon-circle {
  width: 48px; height: 48px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin-bottom: 16px; font-weight: 700;
}
.tech-item-box h3 { font-size: 17px; font-weight: 800; color: var(--ink); margin-bottom: 8px; }
.tech-item-box p { font-size: 13.5px; color: var(--text-muted); line-height: 1.7; margin-bottom: 14px; }
.tech-tag-badge {
  display: inline-block; font-size: 11px; font-weight: 600; padding: 2px 8px;
  border-radius: 4px; background: var(--gray-bg); color: var(--text-muted); border: 1px solid var(--border);
}

@media(max-width: 900px) { .tech-matrix { grid-template-columns: 1fr 1fr; } }
@media(max-width: 600px) { .tech-matrix { grid-template-columns: 1fr; } }

/* ============ 本地标杆案例卡片 ============ */
.cases-triplet { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.case-tile {
  background: #ffffff; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--border); box-shadow: var(--shadow-sm); transition: all 0.35s;
  display: flex; flex-direction: column;
}
.case-tile:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.case-img-holder { height: 190px; position: relative; overflow: hidden; background: #0b1329; }
.case-img-holder img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.case-tile:hover .case-img-holder img { transform: scale(1.08); }
.case-loc-tag {
  position: absolute; top: 12px; left: 12px;
  background: rgba(15, 23, 42, 0.85); color: #fff; font-size: 11.5px; font-weight: 700;
  padding: 4px 12px; border-radius: var(--radius-pill); backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}
.case-loc-tag.gold { background: rgba(217, 119, 6, 0.9); }
.case-content { padding: 26px; flex-grow: 1; display: flex; flex-direction: column; }
.case-content h3 { font-size: 17px; font-weight: 800; color: var(--ink); margin-bottom: 12px; }
.case-stats-bar {
  display: flex; gap: 20px; padding: 12px 0; margin-bottom: 14px;
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.c-stat-box .num { font-size: 22px; font-weight: 800; color: var(--primary); line-height: 1.1; }
.c-stat-box.gold .num { color: var(--gold-dark); }
.c-stat-box .lbl { font-size: 11.5px; color: var(--text-muted); }
.case-content p { font-size: 13.5px; color: var(--text-muted); line-height: 1.7; }

@media(max-width: 900px) { .cases-triplet { grid-template-columns: 1fr; } }

/* ============ 透明价格体系 ============ */
.pricing-deck { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; max-width: 1080px; margin: 0 auto; }
.price-box {
  background: #ffffff; border-radius: var(--radius-lg); padding: 38px 28px;
  border: 1.5px solid var(--border); transition: all 0.35s; position: relative;
  display: flex; flex-direction: column;
}
.price-box.featured {
  background: linear-gradient(145deg, #0d1730 0%, #070d1e 100%);
  color: #fff; border-color: rgba(245, 158, 11, 0.4);
  box-shadow: 0 20px 50px rgba(7, 13, 30, 0.4);
  transform: scale(1.03); z-index: 2;
}
.price-box.featured::before {
  content: "★ 武汉企业推荐热选"; position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--grad-gold); color: #fff; font-size: 12px; font-weight: 800;
  padding: 5px 18px; border-radius: var(--radius-pill); white-space: nowrap;
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
}
.price-box:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.price-box.featured:hover { transform: scale(1.03) translateY(-6px); }

.price-box h3 { font-size: 20px; font-weight: 800; margin-bottom: 6px; }
.price-box .p-desc { font-size: 13.5px; color: var(--text-muted); margin-bottom: 20px; }
.price-box.featured .p-desc { color: rgba(255, 255, 255, 0.7); }
.price-number { font-size: 42px; font-weight: 800; letter-spacing: -1px; margin-bottom: 4px; }
.price-box:not(.featured) .price-number { color: var(--gold-dark); }
.price-box.featured .price-number {
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.price-number .unit { font-size: 16px; font-weight: 600; margin-left: 2px; }
.p-cycle { font-size: 12.5px; color: var(--text-muted); margin-bottom: 24px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }
.price-box.featured .p-cycle { color: rgba(255, 255, 255, 0.6); border-bottom-color: rgba(255, 255, 255, 0.1); }

.price-list { list-style: none; margin-bottom: 30px; flex-grow: 1; }
.price-list li {
  font-size: 13.5px; padding: 8px 0; display: flex; align-items: center; gap: 10px; color: var(--text);
}
.price-box.featured .price-list li { color: rgba(255, 255, 255, 0.9); }
.price-list li::before {
  content: "✓"; font-weight: 800; width: 18px; height: 18px; border-radius: 50%;
  background: var(--green-soft); color: var(--green); display: flex; align-items: center;
  justify-content: center; font-size: 11px; flex-shrink: 0;
}
.price-box.featured .price-list li::before { background: rgba(245, 158, 11, 0.2); color: var(--gold-light); }
.btn-price {
  display: block; text-align: center; padding: 13px; border-radius: var(--radius-pill);
  font-weight: 700; font-size: 14.5px; transition: all 0.25s;
}
.btn-price.normal { background: var(--gray-bg); border: 1.5px solid var(--border); color: var(--ink); }
.btn-price.normal:hover { border-color: var(--gold); color: var(--gold-dark); background: #fff; }
.btn-price.highlight { background: var(--grad-gold); color: #fff; box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35); }
.btn-price.highlight:hover { transform: translateY(-2px); box-shadow: 0 10px 25px rgba(245, 158, 11, 0.5); }

@media(max-width: 960px) {
  .pricing-deck { grid-template-columns: 1fr; }
  .price-box.featured { transform: none; }
  .price-box.featured:hover { transform: translateY(-6px); }
}

/* ============ 各专题页专属特色组件 ============ */

/* 1. 价格专题专属：明细透视对比表 */
.pricing-compare-table-wrap {
  background: #ffffff; border-radius: var(--radius-lg); border: 1px solid var(--border);
  overflow-x: auto; box-shadow: var(--shadow); margin-top: 40px;
}
.deep-compare-table { width: 100%; border-collapse: collapse; min-width: 720px; font-size: 14px; }
.deep-compare-table th {
  padding: 18px 20px; background: #0d1730; color: #fff; font-weight: 800; text-align: left;
}
.deep-compare-table th:first-child { width: 25%; }
.deep-compare-table td {
  padding: 16px 20px; border-bottom: 1px solid var(--border); color: var(--text); vertical-align: middle;
}
.deep-compare-table tr:nth-child(even) td { background: var(--gray-bg); }
.deep-compare-table tr:hover td { background: rgba(245, 158, 11, 0.04); }
.deep-compare-table .category-row td {
  background: #f1f5f9; font-weight: 800; color: var(--ink); font-size: 14.5px;
}
.badge-table {
  display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 12px; font-weight: 600;
}
.badge-table.blue { background: rgba(37, 99, 235, 0.1); color: var(--primary); }
.badge-table.gold { background: rgba(245, 158, 11, 0.15); color: var(--gold-dark); }
.badge-table.green { background: rgba(16, 185, 129, 0.12); color: var(--green); }

/* 2. 价格专题专属：避坑四连击 */
.trap-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 30px; }
.trap-card {
  background: #fff; border: 1px solid var(--border); border-left: 4px solid var(--red);
  border-radius: var(--radius); padding: 24px 22px; box-shadow: var(--shadow-sm);
}
.trap-card h4 { font-size: 16px; font-weight: 800; color: #b91c1c; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
.trap-card p { font-size: 13.5px; color: var(--text-muted); line-height: 1.7; margin-bottom: 10px; }
.trap-solution {
  font-size: 13px; color: var(--ink); background: var(--gray-bg); padding: 8px 12px;
  border-radius: 6px; border: 1px solid var(--border);
}
.trap-solution strong { color: var(--green); }
@media(max-width: 768px) { .trap-grid { grid-template-columns: 1fr; } }

/* 3. 步骤专题专属：六大阶段横向/纵向进度图 */
.steps-pipeline { display: flex; flex-direction: column; gap: 24px; max-width: 960px; margin: 0 auto; position: relative; }
.pipe-step-card {
  display: grid; grid-template-columns: 100px 1fr 220px; gap: 24px; align-items: center;
  background: #ffffff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 24px 28px; box-shadow: var(--shadow-sm); transition: all 0.3s;
}
.pipe-step-card:hover { transform: translateX(6px); border-color: var(--gold); box-shadow: var(--shadow-md); }
.pipe-index {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  width: 72px; height: 72px; border-radius: 18px;
  background: var(--grad-gold); color: #fff; text-align: center;
}
.pipe-index .num { font-size: 24px; font-weight: 800; line-height: 1; }
.pipe-index .lbl { font-size: 10px; font-weight: 600; opacity: 0.9; }
.pipe-info h4 { font-size: 18px; font-weight: 800; color: var(--ink); margin-bottom: 6px; }
.pipe-info p { font-size: 13.5px; color: var(--text-muted); line-height: 1.7; }
.pipe-deliverable {
  background: var(--gray-bg); border: 1px dashed var(--border);
  padding: 12px 16px; border-radius: var(--radius); text-align: center;
}
.pipe-deliv-tag { font-size: 11px; font-weight: 700; color: var(--gold-dark); text-transform: uppercase; margin-bottom: 4px; }
.pipe-deliv-title { font-size: 13px; font-weight: 700; color: var(--ink); }

@media(max-width: 860px) {
  .pipe-step-card { grid-template-columns: 70px 1fr; gap: 16px; }
  .pipe-deliverable { grid-column: 1 / -1; }
}

/* 4. 什么是智能体专题专属：五大要素交互架构 */
.agent-anatomy-box {
  background: #0d1730; border-radius: var(--radius-xl); padding: 48px;
  color: #fff; max-width: 1000px; margin: 0 auto; border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow-lg);
}
.anatomy-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; margin-top: 36px; }
.anatomy-card {
  background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius); padding: 22px 16px; text-align: center; transition: all 0.3s;
}
.anatomy-card:hover {
  background: rgba(245, 158, 11, 0.1); border-color: var(--gold); transform: translateY(-5px);
}
.anatomy-icon { font-size: 32px; margin-bottom: 12px; }
.anatomy-card h4 { font-size: 16px; font-weight: 800; color: var(--gold-light); margin-bottom: 6px; }
.anatomy-card p { font-size: 12px; color: rgba(255, 255, 255, 0.7); line-height: 1.6; }
@media(max-width: 900px) { .anatomy-grid { grid-template-columns: 1fr 1fr; } }
@media(max-width: 500px) { .anatomy-grid { grid-template-columns: 1fr; } }

/* 5. 成本与轻量专题专属：极简算盘卡片 */
.calculator-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 32px; }
.calc-pack-card {
  background: #ffffff; border: 1.5px solid var(--border); border-radius: var(--radius-lg);
  padding: 30px 24px; box-shadow: var(--shadow-sm); transition: all 0.3s;
}
.calc-pack-card:hover { border-color: var(--gold); transform: translateY(-5px); box-shadow: var(--shadow-md); }
.calc-badge {
  display: inline-block; font-size: 11px; font-weight: 700; color: var(--gold-dark);
  background: var(--gold-soft); padding: 3px 10px; border-radius: var(--radius-pill); margin-bottom: 12px;
}
.calc-pack-card h4 { font-size: 18px; font-weight: 800; color: var(--ink); margin-bottom: 6px; }
.calc-price { font-size: 28px; font-weight: 800; color: var(--gold-dark); margin-bottom: 14px; }
.calc-price span { font-size: 14px; font-weight: 500; color: var(--text-muted); }
.calc-features { list-style: none; font-size: 13px; color: var(--text-muted); line-height: 2; margin-bottom: 20px; }
.calc-features li { display: flex; align-items: center; gap: 8px; }
.calc-features li::before { content: "•"; color: var(--gold); font-weight: bold; }
@media(max-width: 900px) { .calculator-grid { grid-template-columns: 1fr; } }

/* 6. 周期专题专属：甘特图排期展示 */
.gantt-chart-wrap {
  background: #ffffff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 36px; box-shadow: var(--shadow); max-width: 960px; margin: 0 auto;
}
.gantt-item { margin-bottom: 24px; }
.gantt-header { display: flex; justify-content: space-between; font-size: 14.5px; font-weight: 700; color: var(--ink); margin-bottom: 8px; }
.gantt-bar-bg { height: 26px; background: var(--gray-bg); border-radius: var(--radius-pill); overflow: hidden; position: relative; }
.gantt-bar-fill {
  height: 100%; border-radius: var(--radius-pill); background: var(--grad-gold);
  display: flex; align-items: center; padding-left: 14px; font-size: 11.5px; font-weight: 700; color: #fff;
  transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}
.gantt-bar-fill.blue { background: var(--grad-primary); }

/* 7. 难度专题专属：L1-L5金字塔分层展示 */
.pyramid-stack { display: flex; flex-direction: column; gap: 16px; max-width: 900px; margin: 0 auto; }
.pyramid-layer {
  display: grid; grid-template-columns: 90px 1.4fr 1fr; gap: 20px; align-items: center;
  background: #ffffff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px 24px; box-shadow: var(--shadow-sm); transition: all 0.25s;
}
.pyramid-layer:hover { transform: translateX(6px); box-shadow: var(--shadow-md); border-color: var(--gold); }
.pyr-level {
  font-size: 20px; font-weight: 800; color: #fff; background: #0f172a;
  width: 60px; height: 60px; border-radius: 12px; display: flex; align-items: center; justify-content: center;
}
.pyr-level.l5 { background: #b91c1c; }
.pyr-level.l4 { background: #d97706; }
.pyr-level.l3 { background: #2563eb; }
.pyr-level.l2 { background: #059669; }
.pyr-level.l1 { background: #64748b; }
.pyr-desc h4 { font-size: 16px; font-weight: 800; color: var(--ink); margin-bottom: 4px; }
.pyr-desc p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }
.pyr-diff {
  text-align: right; font-size: 13px; color: var(--text-muted);
}
.diff-star { color: var(--gold); font-size: 15px; margin-left: 4px; }
@media(max-width: 768px) {
  .pyramid-layer { grid-template-columns: 60px 1fr; }
  .pyr-diff { grid-column: 1 / -1; text-align: left; }
}

/* ============ 关于公司（双主体明确） ============ */
.about-dual-card {
  max-width: 960px; margin: 0 auto; background: #ffffff;
  border: 1px solid var(--border); border-radius: var(--radius-xl);
  padding: 44px; box-shadow: var(--shadow); position: relative;
}
.about-dual-card::before {
  content: ""; position: absolute; top: 0; left: 40px; right: 40px; height: 3px;
  background: var(--grad-gold);
}
.about-lead { font-size: 17px; font-weight: 700; color: var(--ink); margin-bottom: 16px; line-height: 1.7; }
.about-body p { font-size: 15px; color: var(--text); line-height: 1.85; margin-bottom: 16px; text-align: justify; }
.about-badges-bar {
  display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; padding-top: 20px;
  border-top: 1px solid var(--border);
}
.abt-chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--gray-bg); border: 1px solid var(--border);
  padding: 8px 16px; border-radius: var(--radius-pill); font-size: 13px; font-weight: 600; color: var(--ink);
}
.abt-chip svg { width: 14px; height: 14px; fill: var(--gold-dark); }

/* ============ 专题互联导航（热门问答推荐） ============ */
.topic-nav-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.topic-nav-card {
  display: flex; align-items: flex-start; gap: 16px;
  background: #ffffff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px 20px; transition: all 0.3s; text-decoration: none; color: inherit;
}
.topic-nav-card:hover {
  transform: translateY(-4px); border-color: var(--gold); box-shadow: var(--shadow-md);
}
.topic-nav-icon {
  width: 44px; height: 44px; border-radius: 12px;
  background: var(--gold-soft); color: var(--gold-dark);
  display: flex; align-items: center; justify-content: center; font-size: 22px; flex-shrink: 0;
}
.topic-nav-card:hover .topic-nav-icon { background: var(--grad-gold); color: #fff; }
.topic-nav-info h4 { font-size: 15.5px; font-weight: 800; color: var(--ink); margin-bottom: 4px; transition: color 0.2s; }
.topic-nav-card:hover .topic-nav-info h4 { color: var(--gold-dark); }
.topic-nav-info p { font-size: 12.5px; color: var(--text-muted); line-height: 1.6; }

@media(max-width: 900px) { .topic-nav-grid { grid-template-columns: 1fr 1fr; } }
@media(max-width: 560px) { .topic-nav-grid { grid-template-columns: 1fr; } }

/* ============ FAQ 手风琴 ============ */
.faq-box { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: #ffffff; border: 1px solid var(--border); border-radius: var(--radius);
  margin-bottom: 12px; overflow: hidden; transition: all 0.25s;
}
.faq-item:hover { border-color: rgba(245, 158, 11, 0.4); box-shadow: var(--shadow-sm); }
.faq-q {
  padding: 20px 24px; cursor: pointer; display: flex; justify-content: space-between; align-items: center;
  font-weight: 700; font-size: 15.5px; color: var(--ink); user-select: none;
}
.faq-q .arrow { width: 18px; height: 18px; transition: transform 0.3s ease; fill: var(--gold-dark); flex-shrink: 0; }
.faq-item.open .arrow { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; padding: 0 24px; }
.faq-item.open .faq-a { max-height: 320px; padding: 0 24px 22px; }
.faq-a p { font-size: 14.5px; color: var(--text-muted); line-height: 1.85; }

/* ============ 联系我们区域 ============ */
.contact-hub {
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px;
  max-width: 960px; margin: 0 auto; background: #ffffff;
  border: 1px solid var(--border); border-radius: var(--radius-xl);
  padding: 44px; box-shadow: var(--shadow-lg);
}
.contact-col-phone {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.06) 0%, rgba(37, 99, 235, 0.06) 100%);
  border: 1px solid rgba(245, 158, 11, 0.25); border-radius: var(--radius-lg);
  padding: 32px 24px; text-align: center; display: flex; flex-direction: column; justify-content: center;
}
.contact-col-phone .c-lbl { font-size: 13.5px; color: var(--text-muted); font-weight: 600; margin-bottom: 10px; }
.contact-col-phone .c-num {
  font-size: clamp(24px, 4vw, 32px); font-weight: 800; letter-spacing: 0.5px;
  background: var(--grad-gold); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 18px; display: block;
}
.btn-call-direct {
  background: var(--grad-gold); color: #fff; padding: 12px 28px;
  border-radius: var(--radius-pill); font-weight: 700; font-size: 15px;
  box-shadow: 0 6px 18px rgba(245, 158, 11, 0.35); align-self: center; transition: all 0.25s;
}
.btn-call-direct:hover { transform: translateY(-2px); box-shadow: 0 10px 25px rgba(245, 158, 11, 0.45); }

.contact-col-wechat {
  background: #ffffff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 24px; display: flex; align-items: center; gap: 20px;
}
.contact-qr-img { width: 130px; height: 130px; border-radius: 12px; background: #fff; padding: 6px; box-shadow: var(--shadow-sm); flex-shrink: 0; }
.contact-qr-info h4 { font-size: 16px; font-weight: 800; color: var(--ink); margin-bottom: 6px; }
.contact-qr-info p { font-size: 13px; color: var(--text-muted); line-height: 1.6; margin-bottom: 10px; }
.contact-qr-tag { font-size: 11.5px; color: var(--green); background: var(--green-soft); padding: 3px 8px; border-radius: 4px; display: inline-block; font-weight: 600; }

.contact-addr-full {
  grid-column: 1 / -1; padding-top: 24px; border-top: 1px dashed var(--border);
  font-size: 13.5px; color: var(--text-muted); line-height: 1.8; text-align: center;
}
.contact-addr-full strong { color: var(--ink); }

@media(max-width: 768px) {
  .contact-hub { grid-template-columns: 1fr; padding: 24px; gap: 20px; }
  .contact-col-wechat { flex-direction: column; text-align: center; }
}

/* ============ Footer 现代科技底栏 ============ */
.footer {
  background: #060a16; color: rgba(255, 255, 255, 0.65);
  padding: 64px 0 28px; position: relative; overflow: hidden;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-top-grid {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.3fr; gap: 40px; margin-bottom: 40px;
}
.footer-about-box .f-logo { margin-bottom: 16px; height: 42px; border-radius: 8px; }
.footer-about-box p { font-size: 13px; line-height: 1.85; margin-bottom: 14px; color: rgba(255, 255, 255, 0.6); }
.footer-backing-note { font-size: 12px; color: var(--gold-light); line-height: 1.6; }

.footer-col-nav h4 { color: #fff; font-size: 15px; font-weight: 800; margin-bottom: 16px; position: relative; }
.footer-col-nav a {
  display: block; font-size: 13.5px; color: rgba(255, 255, 255, 0.65); padding: 5px 0;
  transition: all 0.2s;
}
.footer-col-nav a:hover { color: var(--gold-light); transform: translateX(3px); }

.footer-contact-box h4 { color: #fff; font-size: 15px; font-weight: 800; margin-bottom: 16px; }
.footer-phone { font-size: 20px; font-weight: 800; color: var(--gold-light); margin-bottom: 8px; display: block; }
.footer-contact-box p { font-size: 12.5px; color: rgba(255, 255, 255, 0.6); line-height: 1.8; margin-bottom: 14px; }
.footer-qr-flex { display: flex; align-items: center; gap: 12px; }
.footer-qr-flex img { width: 72px; height: 72px; border-radius: 8px; background: #fff; padding: 3px; }
.footer-qr-flex span { font-size: 12px; color: rgba(255, 255, 255, 0.6); }

.footer-bottom-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.08); padding-top: 24px;
  text-align: center; font-size: 12.5px; color: rgba(255, 255, 255, 0.45); line-height: 1.8;
}
.footer-friend-links {
  margin-bottom: 10px; font-size: 12.5px; color: rgba(255, 255, 255, 0.45); line-height: 2;
}
.footer-friend-links .fl-label { font-weight: 700; color: rgba(255, 255, 255, 0.6); margin-right: 6px; }
.footer-friend-links a {
  color: rgba(255, 255, 255, 0.55); text-decoration: none; margin: 0 4px; transition: color 0.2s;
}
.footer-friend-links a:hover { color: var(--gold); }
.footer-friend-links .fl-sep { color: rgba(255, 255, 255, 0.25); margin: 0 2px; }

@media(max-width: 900px) { .footer-top-grid { grid-template-columns: 1fr 1fr; gap: 30px; } }
@media(max-width: 560px) { .footer-top-grid { grid-template-columns: 1fr; } }

/* ============ 浮动联系挂件（PC端） ============ */
.floating-widget {
  position: fixed; bottom: 120px; right: 24px; z-index: 99;
  display: flex; flex-direction: column; gap: 12px; align-items: flex-end;
}
.float-btn {
  width: 54px; height: 54px; border-radius: 50%; display: flex;
  align-items: center; justify-content: center; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  transition: all 0.25s; position: relative; cursor: pointer; text-decoration: none; border: none;
}
.float-phone { background: var(--grad-gold); color: #fff; }
.float-wechat { background: var(--grad-primary); color: #fff; }
.float-top { background: #fff; border: 1px solid var(--border); color: var(--ink); }
.float-btn:hover { transform: scale(1.1); }
.float-btn svg { width: 22px; height: 22px; fill: currentColor; }

.float-hover-tip {
  position: absolute; right: 64px; top: 50%; transform: translateY(-50%) translateX(10px);
  opacity: 0; visibility: hidden; transition: all 0.25s; white-space: nowrap;
  background: #ffffff; padding: 16px; border-radius: var(--radius);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.16); text-align: center; min-width: 140px;
}
.float-btn:hover .float-hover-tip { opacity: 1; visibility: visible; transform: translateY(-50%) translateX(0); }
.f-tip-title { font-size: 12px; color: var(--text-muted); margin-bottom: 6px; }
.f-tip-val { font-size: 16px; font-weight: 800; color: var(--gold-dark); text-decoration: none; }
.f-tip-qr { width: 110px; height: 110px; border-radius: 8px; margin: 0 auto; display: block; }

@media(max-width: 768px) {
  .floating-widget { display: none; } /* 移动端使用专用底部Bar */
}

/* ============ 移动端专属悬浮底部咨询Bar ============ */
.mobile-bottom-bar {
  display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 999;
  background: rgba(255, 255, 255, 0.98); backdrop-filter: blur(12px);
  border-top: 1px solid var(--border); padding: 8px 16px;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
}
.mobile-bar-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.m-bar-btn {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  height: 44px; border-radius: var(--radius-pill); font-weight: 700; font-size: 14px; text-decoration: none;
}
.m-bar-phone { background: var(--grad-gold); color: #fff; }
.m-bar-wechat { background: var(--gray-bg); border: 1.5px solid var(--border); color: var(--ink); }

@media(max-width: 768px) {
  .mobile-bottom-bar { display: block; }
  body { padding-bottom: 60px; }
}

/* ============ 滚动淡入动画 ============ */
.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }