/* ============================================================
   南山云「银发」会员营销系统官网 · silvergrowth.cn
   设计体系：延续南山云官网视觉（深蓝 + 青 + 暖橙）
   ============================================================ */

:root {
  --primary: #1a5fa8;
  --primary-light: #2b7de9;
  --primary-dark: #0e3d72;
  --accent: #00b8a9;
  --accent-light: #00d4c3;
  --warm: #f97316;
  --warm-light: #fdba74;
  --violet: #7e3af2;
  --violet-light: #9d62f7;
  --bg-light: #f4f8fc;
  --bg-section: #eef4fb;
  --text-dark: #0f2547;
  --text-body: #334760;
  --text-muted: #64748b;
  --border: #e3ebf4;
  --card-shadow: 0 8px 28px rgba(15, 37, 71, 0.08);
  --card-hover: 0 16px 40px rgba(15, 37, 71, 0.14);
  --radius: 16px;
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.35, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  color: var(--text-body); background: #fff;
  line-height: 1.7; -webkit-font-smoothing: antialiased;
}
img, svg { vertical-align: middle; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }

/* ============ 顶部信息条 ============ */
.topbar {
  background: var(--primary-dark); color: rgba(255,255,255,0.85);
  font-size: 12.5px; padding: 7px 0;
}
.topbar-inner { display: flex; justify-content: space-between; align-items: center; }
.topbar-left { letter-spacing: 1px; }
.topbar-right { display: flex; align-items: center; gap: 14px; }
.topbar-right a { color: rgba(255,255,255,0.9); font-weight: 600; transition: var(--transition); }
.topbar-right a:hover { color: var(--accent-light); }
.topbar-sep { width: 1px; height: 12px; background: rgba(255,255,255,0.3); }

/* ============ 导航 ============ */
.navbar {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.96); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.navbar.scrolled { box-shadow: 0 4px 24px rgba(15,37,71,0.08); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 20px; }
.logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo-icon {
  height: 42px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.logo-icon img { height: 38px; width: auto; display: block; }
.logo-text { display: flex; flex-direction: column; line-height: 1.25; }
.logo-text .cn { font-size: 16.5px; font-weight: 700; color: var(--primary-dark); letter-spacing: 0.5px; }
.logo-text .en { font-size: 10.5px; color: var(--text-muted); letter-spacing: 0.5px; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  font-size: 14.5px; font-weight: 600; color: var(--text-body);
  padding: 9px 15px; border-radius: 9px; transition: var(--transition);
}
.nav-links a:hover { background: var(--bg-light); color: var(--primary); }
.nav-links a.active { color: var(--primary); background: #e8f1fb; }
.nav-cta {
  background: linear-gradient(135deg, var(--primary), var(--primary-light)) !important;
  color: #fff !important; padding: 10px 22px !important; border-radius: 22px !important;
  box-shadow: 0 4px 14px rgba(26,95,168,0.3); margin-left: 6px;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 8px 22px rgba(26,95,168,0.4); }

/* ============ 通用 Section ============ */
.section { padding: 90px 0; }
.section-alt { background: var(--bg-section); }
.section-dark { background: linear-gradient(160deg, #0a1f4e 0%, #0d3875 60%, #0a6b8a 100%); }
.section-tag {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 600; color: var(--accent);
  letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 12px;
}
.section-tag::before { content: ''; width: 24px; height: 2px; background: var(--accent); }
.section-title { font-size: 38px; font-weight: 800; color: var(--text-dark); line-height: 1.2; margin-bottom: 16px; }
.section-desc { font-size: 16px; color: var(--text-muted); max-width: 680px; line-height: 1.8; }
.section-head { margin-bottom: 56px; }
.section-head.center { text-align: center; }
.section-head.center .section-desc { margin: 0 auto; }
.section-head.light .section-title { color: #fff; }
.section-head.light .section-desc { color: rgba(255,255,255,0.75); }
.section-head.light .section-tag { color: var(--accent-light); }
.section-head.light .section-tag::before { background: var(--accent-light); }

/* ============ 按钮 ============ */
.btn-primary, .btn-outline, .btn-white {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 16px; font-weight: 600; padding: 14px 30px;
  border-radius: 28px; border: none; cursor: pointer;
  transition: var(--transition);
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #fff; box-shadow: 0 6px 24px rgba(0,184,169,0.42);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 32px rgba(0,184,169,0.5); }
.btn-outline { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,0.5); }
.btn-outline:hover { background: rgba(255,255,255,0.12); border-color: #fff; }
.btn-white { background: #fff; color: var(--primary); box-shadow: 0 6px 24px rgba(0,0,0,0.18); }
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 10px 32px rgba(0,0,0,0.26); }

/* ============ 首页 Hero ============ */
.hero {
  padding-top: 60px; min-height: 88vh;
  background: linear-gradient(160deg, #0a1f4e 0%, #0d3875 40%, #0a6b8a 100%);
  position: relative; overflow: hidden;
  display: flex; align-items: center;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.hero-circle { position: absolute; border-radius: 50%; background: radial-gradient(circle, rgba(0,184,169,0.18) 0%, transparent 70%); }
.hero-circle.c1 { width: 700px; height: 700px; top: -200px; right: -100px; }
.hero-circle.c2 { width: 400px; height: 400px; bottom: -100px; left: -50px; background: radial-gradient(circle, rgba(43,125,233,0.2) 0%, transparent 70%); }
.hero-grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 50px 50px;
}
.hero-inner {
  max-width: 1200px; margin: 0 auto; padding: 80px 32px;
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 60px; align-items: center;
}
.hero-label {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(0,184,169,0.18); border: 1px solid rgba(0,184,169,0.4);
  color: var(--accent-light); font-size: 13px; font-weight: 600;
  padding: 6px 16px; border-radius: 20px; margin-bottom: 20px; letter-spacing: 1px;
}
.hero-label::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: var(--accent-light); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.5;transform:scale(1.5)} }
.hero-title {
  font-size: 48px; font-weight: 800; color: #fff;
  line-height: 1.18; margin-bottom: 22px; text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.hero-title .highlight {
  background: linear-gradient(90deg, var(--accent-light), #7dd3fc);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-desc { font-size: 16.5px; color: rgba(255,255,255,0.78); margin-bottom: 36px; line-height: 1.85; }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-trust {
  display: flex; gap: 22px; flex-wrap: wrap; margin-top: 34px;
  font-size: 13.5px; color: rgba(255,255,255,0.65);
}
.hero-trust span { display: inline-flex; align-items: center; gap: 6px; }
.hero-trust svg { width: 15px; height: 15px; fill: var(--accent-light); }

/* Hero 视觉浮卡 */
.hero-visual { position: relative; height: 480px; }
.mv-member {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: min(330px, 88%); background: #fff; border-radius: 18px;
  padding: 24px; box-shadow: 0 30px 70px rgba(0,0,0,0.35);
  animation: floatY 6s ease-in-out infinite;
}
.mv-card-head { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.mv-avatar {
  width: 46px; height: 46px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 700;
}
.mv-card-head .n { font-size: 17px; font-weight: 700; color: var(--text-dark); }
.mv-card-head .g { font-size: 12px; color: var(--warm); font-weight: 600; }
.mv-card-head .g b {
  background: linear-gradient(135deg, var(--warm), #fbbf24);
  color: #fff; padding: 2px 10px; border-radius: 12px; font-size: 11.5px; margin-left: 6px;
}
.mv-stats { display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid var(--border); padding-top: 16px; }
.mv-stats .s { text-align: center; }
.mv-stats .s b { display: block; font-size: 19px; font-weight: 800; color: var(--primary-dark); }
.mv-stats .s span { font-size: 11.5px; color: var(--text-muted); }
@keyframes floatY { 0%,100%{margin-top:0} 50%{margin-top:-16px} }
.mv-coupon {
  position: absolute; top: 24px; right: 0;
  background: #fff; border-radius: 14px; padding: 14px 18px;
  box-shadow: 0 18px 44px rgba(0,0,0,0.3);
  display: flex; align-items: center; gap: 12px;
  animation: floatY 5s ease-in-out infinite reverse;
}
.mv-coupon .ic {
  width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, var(--warm), #fbbf24);
  display: flex; align-items: center; justify-content: center;
}
.mv-coupon .ic svg { width: 20px; height: 20px; fill: #fff; }
.mv-coupon .t { font-size: 12.5px; color: var(--text-muted); }
.mv-coupon .price { font-size: 26px; font-weight: 800; color: var(--warm); line-height: 1.1; }
.mv-points {
  position: absolute; bottom: 56px; left: 0;
  background: #fff; border-radius: 14px; padding: 14px 18px;
  box-shadow: 0 18px 44px rgba(0,0,0,0.3);
  animation: floatY 7s ease-in-out infinite 0.6s;
}
.mv-points .num { font-size: 22px; font-weight: 800; color: var(--primary); }
.mv-points .num small { font-size: 12.5px; color: var(--warm); font-weight: 600; margin-left: 4px; }
.mv-points .t { font-size: 12.5px; color: var(--text-muted); }
.mv-alert {
  position: absolute; bottom: 0; right: 8px;
  background: #fff; border-radius: 12px; padding: 11px 16px;
  box-shadow: 0 14px 34px rgba(0,0,0,0.3);
  display: flex; align-items: center; gap: 9px;
  font-size: 13px; color: var(--text-body);
  animation: floatY 6s ease-in-out infinite 0.3s;
}
.mv-alert .ic { width: 30px; height: 30px; border-radius: 8px; background: #fff3e6; display: flex; align-items: center; justify-content: center; }
.mv-alert .ic svg { width: 16px; height: 16px; fill: var(--warm); }
.mv-alert b { color: var(--primary-dark); }

/* ============ 内页 Hero ============ */
.page-hero {
  background: linear-gradient(160deg, #0a1f4e 0%, #0d3875 55%, #0a6b8a 100%);
  position: relative; overflow: hidden; padding: 76px 0 70px;
}
.page-hero .hero-grid-bg { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px); background-size: 50px 50px; }
.page-hero-inner { position: relative; z-index: 2; max-width: 780px; }
.page-hero .crumb { font-size: 13px; color: rgba(255,255,255,0.6); margin-bottom: 16px; letter-spacing: 0.5px; }
.page-hero .crumb a { color: rgba(255,255,255,0.75); }
.page-hero .crumb a:hover { color: var(--accent-light); }
.page-hero h1 { font-size: 40px; font-weight: 800; color: #fff; line-height: 1.25; margin-bottom: 16px; }
.page-hero .page-desc { font-size: 16px; color: rgba(255,255,255,0.75); line-height: 1.85; }

/* ============ 市场数据条 ============ */
.market-section { background: linear-gradient(135deg, var(--primary-dark), var(--primary)); padding: 56px 0; }
.market-stats { display: grid; grid-template-columns: repeat(4,1fr); gap: 36px 28px; }
.mstat { text-align: center; position: relative; }
.mstat:not(:last-child)::after { content: ''; position: absolute; right: -14px; top: 12%; height: 70%; width: 1px; background: rgba(255,255,255,0.15); }
.mstat-num { font-size: 44px; font-weight: 800; color: #fff; line-height: 1.1; }
.mstat-unit { font-size: 18px; font-weight: 700; color: var(--accent-light); margin-left: 4px; }
.mstat-label { font-size: 14px; color: rgba(255,255,255,0.85); margin-top: 8px; }
.mstat-src { font-size: 12px; color: rgba(255,255,255,0.45); margin-top: 4px; }

/* ============ 行业痛点矩阵（参考全行业方案矩阵） ============ */
.ind-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.ind-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 26px; transition: var(--transition); position: relative; overflow: hidden;
}
.ind-card:hover { transform: translateY(-6px); box-shadow: var(--card-hover); border-color: #c5dcf5; }
.ind-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--primary), var(--accent)); }
.ind-head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.ind-icon {
  width: 44px; height: 44px; border-radius: 12px; flex-shrink: 0;
  background: var(--bg-light); display: flex; align-items: center; justify-content: center;
}
.ind-icon svg { width: 24px; height: 24px; fill: var(--primary); }
.ind-head h3 { font-size: 17.5px; font-weight: 700; color: var(--text-dark); }
.ind-head h3 small { display: block; font-size: 12px; color: var(--text-muted); font-weight: 500; }
.ind-pain { font-size: 13.8px; color: var(--text-muted); line-height: 1.75; margin-bottom: 14px; min-height: 72px; }
.ind-pain b { color: #c2410c; }
.ind-feats { display: flex; flex-wrap: wrap; gap: 8px; }
.ind-feats span {
  font-size: 12.3px; font-weight: 600; color: var(--primary);
  background: #eaf2fc; padding: 5px 12px; border-radius: 16px;
}
.ind-more { margin-top: 14px; font-size: 13px; font-weight: 700; color: var(--accent); display: inline-flex; align-items: center; gap: 4px; }
.ind-more:hover { color: var(--primary); }

/* ============ 全链路步骤 ============ */
.chain-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.chain-card {
  position: relative; background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 30px 26px; transition: var(--transition);
}
.chain-card:hover { transform: translateY(-6px); box-shadow: var(--card-hover); border-color: #c5dcf5; }
.chain-no {
  position: absolute; top: 20px; right: 22px;
  font-size: 44px; font-weight: 800; color: #eaf1f9; line-height: 1;
}
.chain-icon {
  width: 52px; height: 52px; border-radius: 14px; margin-bottom: 18px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 20px rgba(26,95,168,0.26);
}
.chain-icon svg { width: 26px; height: 26px; fill: #fff; }
.chain-card h3 { font-size: 19px; font-weight: 700; color: var(--text-dark); margin-bottom: 10px; }
.chain-card p { font-size: 13.8px; color: var(--text-muted); line-height: 1.75; margin-bottom: 16px; }
.chain-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chain-chips span { font-size: 12.3px; font-weight: 600; color: var(--accent); background: #e6faf7; padding: 5px 12px; border-radius: 16px; }

/* ============ 功能卡片墙 ============ */
.feat-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.feat-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 26px; transition: var(--transition); display: flex; flex-direction: column;
}
.feat-card:hover { transform: translateY(-6px); box-shadow: var(--card-hover); border-color: #c5dcf5; }
.feat-icon {
  width: 50px; height: 50px; border-radius: 13px; margin-bottom: 18px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 20px rgba(26,95,168,0.24);
}
.feat-icon svg { width: 26px; height: 26px; fill: #fff; }
.feat-card:nth-child(3n+2) .feat-icon { background: linear-gradient(135deg, #00867a, var(--accent)); box-shadow: 0 8px 20px rgba(0,184,169,0.28); }
.feat-card:nth-child(3n) .feat-icon { background: linear-gradient(135deg, var(--warm), #fbbf24); box-shadow: 0 8px 20px rgba(249,115,22,0.26); }
.feat-card .feat-no { font-size: 12px; font-weight: 800; color: #b6c8dc; letter-spacing: 2px; margin-bottom: 4px; }
.feat-card h3 { font-size: 19px; font-weight: 700; color: var(--text-dark); margin-bottom: 6px; }
.feat-card .feat-desc { font-size: 13.8px; color: var(--text-muted); line-height: 1.75; margin-bottom: 16px; }
.feat-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; }
.feat-chips span { font-size: 12.3px; font-weight: 600; color: var(--primary); background: var(--bg-light); border: 1px solid var(--border); padding: 4px 11px; border-radius: 14px; }
.feat-card .feat-link { margin-top: 14px; font-size: 13px; font-weight: 700; color: var(--accent); }

/* ============ 场景卡 ============ */
.scene-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 26px; }
.scene-card {
  background: #fff; border: 1px solid var(--border); border-radius: 20px;
  padding: 34px 32px; position: relative; overflow: hidden; transition: var(--transition);
  display: flex; flex-direction: column;
}
.scene-card:hover { transform: translateY(-6px); box-shadow: var(--card-hover); border-color: #c5dcf5; }
.scene-no {
  position: absolute; top: 12px; right: 20px;
  font-size: 64px; font-weight: 800; color: #eef3fa; line-height: 1;
}
.scene-card:hover .scene-no { color: #dbe9fa; }
.scene-head { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; position: relative; z-index: 1; }
.scene-chip {
  width: 50px; height: 50px; border-radius: 13px; flex-shrink: 0;
  background: var(--bg-light); display: flex; align-items: center; justify-content: center;
}
.scene-chip svg { width: 28px; height: 28px; fill: var(--primary); }
.scene-card h3 { font-size: 21px; font-weight: 700; color: var(--text-dark); }
.scene-card h3 small { font-size: 13px; font-weight: 600; color: var(--warm); margin-left: 10px; letter-spacing: 1px; }
.tone-accent .scene-chip { background: #e6faf7; } .tone-accent .scene-chip svg { fill: var(--accent); }
.tone-warm .scene-chip { background: #fff3e6; } .tone-warm .scene-chip svg { fill: var(--warm); }
.tone-violet .scene-chip { background: #f3ecfd; } .tone-violet .scene-chip svg { fill: var(--violet); }
.scene-tagline { font-size: 14.5px; font-weight: 600; color: var(--primary); margin: 0 0 14px; position: relative; z-index: 1; }
.scene-pain {
  background: var(--bg-section); border-left: 3px solid var(--warm);
  padding: 12px 16px; border-radius: 0 10px 10px 0;
  font-size: 13.6px; color: var(--text-muted); line-height: 1.75; margin-bottom: 16px;
  position: relative; z-index: 1;
}
.scene-card ul { display: flex; flex-direction: column; gap: 10px; position: relative; z-index: 1; margin-bottom: 18px; }
.scene-card li { font-size: 14px; color: var(--text-body); padding-left: 24px; position: relative; line-height: 1.7; }
.scene-card li::before { content: '✓'; position: absolute; left: 0; top: 0; color: var(--accent); font-weight: 800; font-size: 14px; }
.scene-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 12px; position: relative; z-index: 1; }
.scene-btn {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 700; color: var(--primary);
  padding: 10px 20px; border-radius: 20px; background: var(--bg-light);
  border: 1px solid var(--border); transition: var(--transition);
}
.scene-btn:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ============ 价格卡 ============ */
.price-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 26px; align-items: stretch; padding-top: 14px; }
.price-card {
  position: relative; display: flex; flex-direction: column;
  background: #fff; border: 1.5px solid var(--border);
  border-radius: 20px; padding: 34px 30px 30px; transition: var(--transition);
}
.price-card:hover { transform: translateY(-8px); box-shadow: var(--card-hover); border-color: #c5dcf5; }
.price-card.featured {
  border-color: transparent;
  background: linear-gradient(165deg, #0a1f4e 0%, #0d3875 55%, #0a6b8a 100%);
  box-shadow: 0 18px 46px rgba(13,56,117,0.26); transform: translateY(-14px);
}
.price-card.featured:hover { transform: translateY(-20px); box-shadow: 0 26px 56px rgba(13,56,117,0.32); }
.price-badge {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, var(--warm), #fbbf24);
  color: #fff; font-size: 12.5px; font-weight: 700;
  padding: 5px 18px; border-radius: 20px; letter-spacing: 1px; white-space: nowrap;
  box-shadow: 0 6px 16px rgba(249,115,22,0.35);
}
.price-tier { font-size: 23px; font-weight: 800; color: var(--text-dark); letter-spacing: 0.5px; }
.price-card.featured .price-tier { color: #fff; }
.price-sub { font-size: 13.5px; color: var(--text-muted); margin: 6px 0 22px; line-height: 1.6; }
.price-card.featured .price-sub { color: rgba(255,255,255,0.72); }
.price-amount { display: flex; align-items: baseline; gap: 6px; padding-bottom: 22px; border-bottom: 1px dashed var(--border); margin-bottom: 22px; }
.price-card.featured .price-amount { border-bottom-color: rgba(255,255,255,0.24); }
.price-amount .cur { font-size: 20px; font-weight: 700; color: var(--warm); }
.price-amount .num { font-size: 44px; font-weight: 800; color: var(--primary-dark); line-height: 1; letter-spacing: -1px; }
.price-card.featured .price-amount .num { color: #fff; }
.price-amount .unit { font-size: 14px; color: var(--text-muted); }
.price-card.featured .price-amount .unit { color: rgba(255,255,255,0.7); }
.price-list { display: flex; flex-direction: column; gap: 12px; flex: 1; margin-bottom: 28px; }
.price-list li { display: flex; gap: 10px; font-size: 14.2px; color: var(--text-body); line-height: 1.6; }
.price-list li svg { width: 17px; height: 17px; flex-shrink: 0; margin-top: 3px; fill: var(--accent); }
.price-list li b { color: var(--primary); font-weight: 700; }
.price-card.featured .price-list li { color: rgba(255,255,255,0.9); }
.price-card.featured .price-list li svg { fill: var(--accent-light); }
.price-card.featured .price-list li b { color: var(--accent-light); }
.price-cta {
  display: block; width: 100%; text-align: center; cursor: pointer;
  font-size: 15.5px; font-weight: 700; padding: 14px 20px;
  border-radius: 26px; border: 1.5px solid transparent; transition: var(--transition);
  background: var(--bg-light); color: var(--primary); border-color: var(--border);
}
.price-cta:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.price-cta.light { background: #fff; color: var(--primary-dark); border-color: transparent; }
.price-cta.light:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0,0,0,0.22); }
.price-note { margin-top: 26px; text-align: center; font-size: 13.5px; color: var(--text-muted); line-height: 1.8; }
.price-note b { color: var(--primary); }
.price-note a { color: var(--primary); font-weight: 600; }

/* ============ 对比表 ============ */
.matrix-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); background: #fff; }
table.matrix { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 640px; }
.matrix th { background: var(--primary-dark); color: #fff; padding: 15px 18px; text-align: center; font-weight: 700; }
.matrix th:first-child { text-align: left; }
.matrix td { padding: 13px 18px; border-top: 1px solid var(--border); text-align: center; color: var(--text-body); }
.matrix td:first-child { text-align: left; font-weight: 600; color: var(--text-dark); }
.matrix tr:nth-child(even) td { background: #f8fbfe; }
.matrix td.yes { color: var(--accent); font-weight: 800; }
.matrix td.no { color: #b9c6d4; }
.matrix tr.hl td { background: #eaf2fc; font-weight: 800; color: var(--primary); }

/* ============ 服务保障 ============ */
.gua-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.gua-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 26px; transition: var(--transition);
}
.gua-card:hover { transform: translateY(-5px); box-shadow: var(--card-hover); border-color: #c5dcf5; }
.gua-icon {
  width: 48px; height: 48px; border-radius: 12px; margin-bottom: 16px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 20px rgba(26,95,168,0.24);
}
.gua-grid .gua-card:nth-child(3n+2) .gua-icon { background: linear-gradient(135deg, #00867a, var(--accent)); box-shadow: 0 8px 20px rgba(0,184,169,0.28); }
.gua-grid .gua-card:nth-child(3n) .gua-icon { background: linear-gradient(135deg, var(--warm), #fbbf24); box-shadow: 0 8px 20px rgba(249,115,22,0.26); }
.gua-icon svg { width: 25px; height: 25px; fill: #fff; }
.gua-card h3 { font-size: 17px; font-weight: 700; color: var(--text-dark); margin-bottom: 8px; }
.gua-card p { font-size: 13.6px; color: var(--text-muted); line-height: 1.75; }

/* ============ FAQ ============ */
.faq-list { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: 14px; overflow: hidden; transition: var(--transition); }
.faq-item.open { border-color: #b9d7f3; box-shadow: var(--card-shadow); }
.faq-q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 19px 24px; background: none; border: none; cursor: pointer;
  font-size: 15.5px; font-weight: 700; color: var(--text-dark); text-align: left;
}
.faq-q .arr { width: 26px; height: 26px; border-radius: 50%; background: var(--bg-light); display: flex; align-items: center; justify-content: center; flex-shrink: 0; transition: var(--transition); }
.faq-q .arr svg { width: 15px; height: 15px; fill: var(--primary); transition: var(--transition); }
.faq-item.open .arr { background: var(--primary); }
.faq-item.open .arr svg { fill: #fff; transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-a-inner { padding: 0 24px 20px; font-size: 14.2px; color: var(--text-muted); line-height: 1.85; }

/* ============ CTA 横幅 ============ */
.cta-band {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 55%, #0a6b8a 100%);
  border-radius: 22px; padding: 52px 56px;
  display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap;
  position: relative; overflow: hidden;
}
.cta-band::before { content: ''; position: absolute; width: 300px; height: 300px; border-radius: 50%; background: radial-gradient(circle, rgba(0,212,195,0.22) 0%, transparent 70%); top: -120px; right: -60px; }
.cta-band h3 { font-size: 27px; font-weight: 800; color: #fff; margin-bottom: 10px; position: relative; z-index: 1; }
.cta-band p { font-size: 15px; color: rgba(255,255,255,0.75); position: relative; z-index: 1; }
.cta-band .band-btns { display: flex; gap: 14px; flex-wrap: wrap; position: relative; z-index: 1; }

/* ============ 详情区块（产品功能页 / 场景详情页） ============ */
.detail-block { background: #fff; border: 1px solid var(--border); border-radius: 20px; padding: 40px 42px; margin-bottom: 28px; scroll-margin-top: 90px; }
.detail-head { display: flex; align-items: flex-start; gap: 20px; margin-bottom: 22px; }
.detail-icon {
  width: 58px; height: 58px; border-radius: 15px; flex-shrink: 0;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 20px rgba(26,95,168,0.24);
}
.detail-icon svg { width: 30px; height: 30px; fill: #fff; }
.detail-head .no { font-size: 12.5px; font-weight: 800; color: #b6c8dc; letter-spacing: 2px; }
.detail-head h2 { font-size: 25px; font-weight: 800; color: var(--text-dark); line-height: 1.3; }
.detail-head .d { font-size: 14.5px; color: var(--text-muted); margin-top: 6px; }
.detail-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 28px; }
.detail-list li {
  font-size: 14.3px; color: var(--text-body); line-height: 1.75;
  padding: 13px 16px 13px 44px; position: relative;
  background: var(--bg-section); border-radius: 12px;
}
.detail-list li::before {
  content: '✓'; position: absolute; left: 16px; top: 12px;
  color: var(--accent); font-weight: 800;
}
.detail-list li b { color: var(--text-dark); }

/* ============ 界面实拍图 ============ */
.shot-hero { margin: 0 auto; max-width: 880px; text-align: center; }
.shot-hero img,
.detail-shot img {
  width: 100%; display: block;
  border: 1px solid var(--border); border-radius: 16px;
  box-shadow: 0 14px 40px rgba(15, 40, 80, 0.10);
  background: #fff;
}
.shot-hero figcaption,
.detail-shot figcaption { margin-top: 12px; font-size: 12.5px; color: var(--text-muted); letter-spacing: 0.3px; }
.detail-shot { margin: 26px 0 0; text-align: center; }
.detail-shot img { max-width: 600px; margin: 0 auto; }

/* 首页实拍横幅 */
.shot-band {
  margin-top: 56px; display: grid; grid-template-columns: 1.25fr 1fr;
  gap: 44px; align-items: center;
  background: #fff; border: 1px solid var(--border); border-radius: 22px;
  padding: 36px; box-shadow: 0 10px 34px rgba(15, 40, 80, 0.07);
}
.shot-band-img img {
  width: 100%; display: block;
  border: 1px solid var(--border); border-radius: 14px;
  box-shadow: 0 14px 40px rgba(15, 40, 80, 0.10);
}
.shot-band-txt .section-title { font-size: 26px; margin: 12px 0 10px; }
.shot-band-txt .section-desc { font-size: 14.5px; }
.shot-band-btns { display: flex; gap: 14px; margin-top: 22px; flex-wrap: wrap; }

/* ============ 联系方式卡 ============ */
.contact-wrap { display: grid; grid-template-columns: 1fr 1.1fr; gap: 44px; align-items: start; }
.contact-info { display: flex; flex-direction: column; gap: 20px; }
.contact-card {
  display: flex; align-items: center; gap: 18px;
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px 24px; transition: var(--transition);
}
.contact-card:hover { transform: translateX(4px); box-shadow: var(--card-hover); }
.contact-icon {
  width: 48px; height: 48px; border-radius: 12px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.contact-icon svg { width: 24px; height: 24px; fill: #fff; }
.contact-label { font-size: 13px; color: var(--text-muted); margin-bottom: 4px; }
.contact-value { font-size: 15px; font-weight: 700; color: var(--text-dark); }

/* ============ 咨询表单 ============ */
.consult-form { background: #fff; border: 1px solid var(--border); border-radius: 18px; padding: 36px; box-shadow: var(--card-shadow); }
.form-title { font-size: 22px; font-weight: 800; color: var(--text-dark); margin-bottom: 6px; }
.form-sub { font-size: 14px; color: var(--text-muted); margin-bottom: 24px; }
.form-notice { padding: 12px 16px; border-radius: 10px; margin-bottom: 16px; font-size: 14px; font-weight: 600; }
.form-notice.success { background: #e6f7f1; color: #0a8f6f; border: 1px solid #b8e8d8; }
.form-notice.error { background: #fdeaea; color: #c0392b; border: 1px solid #f5c6c6; }
.form-notice.warn { background: #fff7e6; color: #b26a00; border: 1px solid #ffdfa8; font-weight: 500; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13.5px; font-weight: 600; color: var(--text-dark); margin-bottom: 8px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 12px 16px;
  border: 1px solid var(--border); border-radius: 10px;
  font-size: 14.5px; font-family: inherit; color: var(--text-dark);
  background: var(--bg-section); transition: var(--transition);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--accent); background: #fff;
  box-shadow: 0 0 0 4px rgba(0,184,169,0.12);
}
.form-group textarea { resize: vertical; min-height: 96px; }
.form-submit {
  width: 100%; padding: 15px; border: none; border-radius: 12px; cursor: pointer;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff; font-size: 16px; font-weight: 700; transition: var(--transition);
  box-shadow: 0 8px 24px rgba(26,95,168,0.35);
}
.form-submit:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(26,95,168,0.45); }

/* ============ 页脚 ============ */
.footer { background: #0a1f3c; color: rgba(255,255,255,0.75); padding: 64px 0 0; }
.footer-inner { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 44px; }
.footer-logo { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.footer-logo-icon {
  height: 40px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.footer-logo-icon img { height: 36px; width: auto; display: block; }
.footer-logo-text .cn { font-size: 16px; font-weight: 700; color: #fff; }
.footer-logo-text .en { font-size: 11px; color: rgba(255,255,255,0.5); }
.footer-brand-desc { font-size: 13.5px; line-height: 1.85; color: rgba(255,255,255,0.6); margin-bottom: 20px; }
.footer-contact div { display: flex; gap: 12px; font-size: 13px; margin-bottom: 8px; }
.footer-contact span { color: rgba(255,255,255,0.45); flex-shrink: 0; }
.footer-contact b { color: rgba(255,255,255,0.88); font-weight: 600; }
.footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 18px; letter-spacing: 1px; }
.footer-col ul { display: flex; flex-direction: column; gap: 11px; }
.footer-col ul li a { font-size: 13.5px; color: rgba(255,255,255,0.6); transition: var(--transition); }
.footer-col ul li a:hover { color: var(--accent-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 0;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
  font-size: 12.5px; color: rgba(255,255,255,0.4);
}

/* ============ 悬浮按钮 ============ */
.float-btns { position: fixed; right: 26px; bottom: 30px; z-index: 90; display: flex; flex-direction: column; gap: 12px; }
.float-btn {
  width: 50px; height: 50px; border-radius: 50%; border: none; cursor: pointer;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 26px rgba(15,37,71,0.3); transition: var(--transition);
}
.float-btn svg { width: 22px; height: 22px; fill: #fff; }
.float-btn:hover { transform: translateY(-4px); }
.float-top { background: #fff; border: 1px solid var(--border); }
.float-top svg { fill: var(--primary); }

/* ============ 滚动显现 ============ */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.on { opacity: 1; transform: none; }

/* ============ 次级标题（内页陪跑区 / 场景页用于替换内联 30px） ============ */
.h-sub { font-size: 30px; }

/* ============ 列数工具类（替代内联 grid-template-columns，便于响应式降列） ============ */
.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cols-4 { grid-template-columns: repeat(4, 1fr); }

/* ============ 移动端导航（汉堡菜单，≤980px 启用） ============ */
.nav-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 44px; height: 44px; padding: 0 11px; flex-shrink: 0;
  background: #fff; border: 1px solid var(--border); border-radius: 11px;
  cursor: pointer; -webkit-tap-highlight-color: transparent; transition: var(--transition);
}
.nav-toggle span { display: block; width: 100%; height: 2px; border-radius: 2px; background: var(--primary-dark); transition: var(--transition); }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; transform: scaleX(0.4); }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-nav {
  display: none; position: absolute; top: 100%; left: 0; right: 0; z-index: 99;
  background: #fff; border-top: 1px solid var(--border);
  box-shadow: 0 20px 44px rgba(15, 37, 71, 0.16);
  max-height: 0; overflow: hidden; visibility: hidden;
  transition: max-height 0.35s ease, visibility 0.35s;
}
.mobile-nav.open { max-height: 78vh; overflow-y: auto; visibility: visible; -webkit-overflow-scrolling: touch; }
.mobile-nav-inner { display: flex; flex-direction: column; padding-top: 6px; padding-bottom: 22px; }
.mobile-nav-inner a {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 52px; padding: 12px 2px;
  font-size: 16px; font-weight: 600; color: var(--text-body);
  border-bottom: 1px solid var(--border);
}
.mobile-nav-inner a.active { color: var(--primary); }
.mobile-nav-inner a.active::after { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.mobile-nav-cta {
  justify-content: center !important; margin-top: 18px; border: none !important;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff !important; border-radius: 26px;
  box-shadow: 0 8px 22px rgba(26, 95, 168, 0.3);
}
.mobile-nav-cta.active::after { display: none; }

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 56px; }
  .hero-visual { height: 430px; max-width: 520px; margin: 0 auto; }
  .market-stats { grid-template-columns: 1fr 1fr; gap: 36px 24px; }
  .mstat:not(:last-child)::after { display: none; }
  .ind-grid, .feat-grid, .gua-grid { grid-template-columns: 1fr 1fr; }
  .chain-grid { grid-template-columns: 1fr 1fr; }
  .scene-grid { grid-template-columns: 1fr; }
  .price-grid { grid-template-columns: 1fr 1fr; gap: 22px; }
  .price-card.featured { transform: none; }
  .price-card.featured:hover { transform: translateY(-8px); }
  .contact-wrap { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .detail-list { grid-template-columns: 1fr; }
  .section-title, .page-hero h1 { font-size: 32px; }
  .cols-4 { grid-template-columns: repeat(2, 1fr); }
  .shot-band { grid-template-columns: 1fr; gap: 26px; padding: 26px; }
  .shot-band-txt .section-title br { display: none; }
}

/* 平板竖屏 / 手机：导航切换为汉堡菜单 */
@media (max-width: 980px) {
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
  .mobile-nav { display: block; }
  .nav-inner { height: 64px; }
}

@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .topbar-left { display: none; }
  .topbar-inner { justify-content: center; }
  .container, .hero-inner { padding-left: 20px; padding-right: 20px; }
  .logo-text .en { display: none; }
  .hero { padding-top: 40px; min-height: auto; }
  .hero-title { font-size: 30px; }
  .hero-visual { height: auto; min-height: 440px; }
  .mv-member { width: min(300px, 84%); }
  .page-hero { padding: 52px 0 46px; }
  .page-hero h1 { font-size: 28px; }
  .page-hero .page-desc { font-size: 15px; }
  .section-title { font-size: 26px; }
  .h-sub { font-size: 23px; }
  .section-head { margin-bottom: 36px; }
  .mstat-num { font-size: 34px; }
  .ind-grid, .feat-grid, .gua-grid, .chain-grid,
  .price-grid, .scene-grid,
  .cols-2, .cols-3, .cols-4 { grid-template-columns: 1fr; }
  .ind-pain { min-height: auto; }
  .market-stats { grid-template-columns: 1fr 1fr; }
  .chain-no { font-size: 34px; }
  .scene-no { font-size: 48px; }
  .price-amount .num { font-size: 38px; }
  .form-row { grid-template-columns: 1fr; }
  .form-group input, .form-group select, .form-group textarea { font-size: 16px; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; }
  .contact-form, .consult-form { padding: 26px 22px; }
  .detail-block { padding: 28px 22px; scroll-margin-top: 78px; }
  .detail-head { flex-direction: column; gap: 14px; }
  .detail-shot img { max-width: 100%; }
  .shot-hero { max-width: 100%; }
  .shot-band { padding: 22px 18px; margin-top: 40px; }
  .shot-band-btns .btn-primary, .shot-band-btns .btn-outline { flex: 1; text-align: center; }
  .detail-list li { padding: 12px 14px 12px 40px; }
  .detail-list li::before { left: 14px; top: 11px; }
  .faq-q { padding: 16px 18px; font-size: 15px; }
  .faq-a-inner { padding: 0 18px 18px; }
  .matrix th, .matrix td { padding: 11px 13px; }
  table.matrix { min-width: 540px; }
  .float-btns { right: 14px; bottom: 18px; gap: 10px; }
  .cta-band { padding: 34px 24px; border-radius: 18px; }
  .cta-band h3 { font-size: 21px; }
  .cta-band p { font-size: 14px; }
  .btn-primary, .btn-outline, .btn-white { padding: 13px 26px; font-size: 15px; }
}

@media (max-width: 480px) {
  .container, .hero-inner { padding-left: 16px; padding-right: 16px; }
  .hero-title { font-size: 25px; }
  .section-title { font-size: 23px; }
  .hero-visual { min-height: 410px; }
  .mv-coupon, .mv-points { padding: 11px 14px; }
  .mv-coupon .price { font-size: 22px; }
  .mv-alert { font-size: 11.5px; padding: 9px 12px; }
  .market-stats { grid-template-columns: 1fr; gap: 28px; }
  .mstat-num { font-size: 32px; }
  .float-btn { width: 46px; height: 46px; }
  .float-btn svg { width: 20px; height: 20px; }
  .topbar { font-size: 12px; }
  .footer-contact div { gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .mv-member, .mv-coupon, .mv-points, .mv-alert { animation: none !important; }
}