/* ============================================================
   托育从业人员培训系统 — 推广官网设计系统 v2
   主题：温暖光芒（Aurora Glow）— 深蓝夜幕 × 香槟金光晕
   内容不变，纯视觉与交互升级
   ============================================================ */
:root {
  /* 品牌色（保留） */
  --navy-deep: #0F1B2D;
  --navy: #1A2D4A;
  --navy-mid: #243D63;
  --gold: #B8963E;
  --gold-light: #D4B96A;
  --cream: #F8F6F2;
  --ink: #3D3B38;
  --gray: #706E6A;
  --teal: #1A7F6E;
  --brick: #C0603A;
  --white: #FFFFFF;
  --radius: 10px;
  --maxw: 1200px;

  /* v2 新增：质感体系 */
  --navy-glow: #16283F;          /* 深蓝高光 */
  --gold-bright: #F5E6C4;        /* 香槟金亮 */
  --gold-grad: linear-gradient(135deg, #F5E6C4 0%, #D4B96A 45%, #B8963E 100%);
  --navy-grad: linear-gradient(160deg, #1A2D4A 0%, #0F1B2D 60%, #0B1424 100%);
  --glow-gold: 0 0 24px rgba(212, 185, 106, 0.35), 0 0 60px rgba(184, 150, 62, 0.18);
  --glow-soft: 0 8px 32px rgba(15, 27, 45, 0.18), 0 2px 8px rgba(15, 27, 45, 0.08);
  --card-border: 1px solid rgba(15, 27, 45, 0.08);
  --ease-out: cubic-bezier(0.22, 0.61, 0.36, 1);
  --speed: 0.35s;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--cream);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--navy-mid); text-decoration: none; transition: color var(--speed) var(--ease-out); }
a:hover { color: var(--gold); }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
  border-radius: 4px;
}

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ============================================================
   Header：深蓝玻璃 + 金色光晕底线
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(15, 27, 45, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(212, 185, 106, 0.35);
  box-shadow: 0 1px 0 rgba(212, 185, 106, 0.12), 0 8px 32px rgba(15, 27, 45, 0.25);
  transition: background var(--speed) var(--ease-out), box-shadow var(--speed) var(--ease-out);
}
.site-header.scrolled { background: rgba(11, 20, 36, 0.97); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 66px; }

.brand { display: flex; align-items: center; gap: 12px; color: var(--white); }
.brand:hover { text-decoration: none; }
.brand-logo-img {
  width: 42px; height: 42px; border-radius: 50%; flex-shrink: 0;
  filter: drop-shadow(0 0 10px rgba(212, 185, 106, 0.45));
  transition: transform 0.4s var(--ease-out), filter 0.4s var(--ease-out);
}
.brand:hover .brand-logo-img { transform: rotate(-6deg) scale(1.05); filter: drop-shadow(0 0 16px rgba(212, 185, 106, 0.7)); }
.brand-name {
  font-size: 17px; font-weight: 700; letter-spacing: 0.5px;
  background: linear-gradient(90deg, #FFFFFF 60%, var(--gold-light));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}

.site-nav { display: flex; align-items: center; }
.site-nav ul { display: flex; list-style: none; gap: 2px; }
.site-nav a {
  display: block; padding: 8px 13px; color: #b8c4d4; font-size: 14px; border-radius: 8px;
  position: relative; transition: color var(--speed) var(--ease-out), background var(--speed) var(--ease-out);
}
.site-nav a::after {
  content: ""; position: absolute; left: 13px; right: 13px; bottom: 3px; height: 2px;
  background: var(--gold-grad); border-radius: 2px;
  transform: scaleX(0); transform-origin: left; transition: transform 0.3s var(--ease-out);
}
.site-nav a:hover { color: var(--white); background: rgba(36, 61, 99, 0.5); text-decoration: none; }
.site-nav a:hover::after { transform: scaleX(1); }
.site-nav a.active { color: var(--gold-light); font-weight: 700; }
.site-nav a.active::after { transform: scaleX(1); }

.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span {
  display: block; width: 22px; height: 2px; background: var(--gold-light);
  margin: 4px 0; border-radius: 2px; transition: transform 0.3s var(--ease-out), opacity 0.3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ============================================================
   Buttons：金色发光胶囊
   ============================================================ */
.btn {
  display: inline-block; padding: 11px 26px; border-radius: 999px;
  font-size: 15px; font-weight: 600; border: 0; cursor: pointer; text-align: center;
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), background 0.3s var(--ease-out);
}
.btn-gold {
  background: var(--gold-grad); color: var(--navy-deep);
  border-bottom: 3px solid #8F6D2C; /* 拟物厚度 */
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.5),
    inset 0 -2px 4px rgba(143, 109, 44, 0.35),
    0 4px 20px rgba(184, 150, 62, 0.4);
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.25);
}
.btn-gold:hover {
  transform: translateY(-2px);
  border-bottom-color: #A8823A;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.55),
    inset 0 -2px 4px rgba(143, 109, 44, 0.3),
    0 10px 34px rgba(184, 150, 62, 0.55);
  color: var(--navy-deep); text-decoration: none;
}
.btn-gold:active { transform: translateY(1px); border-bottom-width: 1px; }
.btn-outline {
  border: 1.5px solid rgba(212, 185, 106, 0.7); color: var(--gold-light); background: rgba(15, 27, 45, 0.3);
  backdrop-filter: blur(4px);
}
.btn-outline:hover { background: rgba(36, 61, 99, 0.6); color: var(--gold-bright); text-decoration: none; transform: translateY(-2px); }
.btn-navy { background: var(--navy-mid); color: var(--white); }
.btn-navy:hover { background: var(--navy); transform: translateY(-2px); text-decoration: none; }

/* ============================================================
   Hero：深蓝极光 + 金色光晕
   ============================================================ */
.hero {
  position: relative; overflow: hidden;
  background: var(--navy-grad);
  color: var(--white); padding: 96px 0 84px;
  border-bottom: 1px solid rgba(212, 185, 106, 0.3);
}
/* 光晕层：右上金色光 + 底部微光 + 网格纹理 */
.hero::before {
  content: ""; position: absolute; top: -30%; right: -10%; width: 720px; height: 720px;
  background: radial-gradient(circle, rgba(212, 185, 106, 0.22) 0%, rgba(212, 185, 106, 0.06) 40%, transparent 70%);
  filter: blur(20px); pointer-events: none;
  --glow-y: 0px;
  transform: translateY(var(--glow-y));
  animation: hero-float 9s ease-in-out infinite;
}
.hero::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212, 185, 106, 0.5), transparent);
}
@keyframes hero-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-30px, 20px) scale(1.08); }
}
.hero > .container { position: relative; z-index: 2; }

.hero h1 {
  font-size: 42px; line-height: 1.3; margin-bottom: 18px; font-weight: 800; letter-spacing: 0.5px;
}
.hero h1 .grad {
  background: var(--gold-grad);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 18px rgba(212, 185, 106, 0.35));
}
.hero .hero-sub {
  font-size: 19px; color: var(--gold-light); margin-bottom: 18px; font-weight: 600;
}
.hero .hero-desc { font-size: 16.5px; color: #b8c4d4; max-width: 720px; margin-bottom: 32px; line-height: 1.9; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* Hero 入场动画 */
.hero-enter { opacity: 0; transform: translateY(24px); animation: hero-in 0.8s var(--ease-out) forwards; }
.hero-enter:nth-child(2) { animation-delay: 0.12s; }
.hero-enter:nth-child(3) { animation-delay: 0.24s; }
.hero-enter:nth-child(4) { animation-delay: 0.36s; }
@keyframes hero-in { to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) {
  .hero::before { animation: none; }
  .hero-enter { animation: none; opacity: 1; transform: none; }
}

/* ============================================================
   TL;DR 摘要块（GEO 保留，视觉升级）
   ============================================================ */
.tldr {
  position: relative;
  background: linear-gradient(120deg, var(--white) 70%, #FDFBF6);
  border: 1px solid rgba(184, 150, 62, 0.18);
  border-radius: 12px;
  box-shadow: var(--glow-soft);
  padding: 20px 24px 20px 28px; margin: 28px 0;
  font-size: 15px; color: var(--ink);
  overflow: hidden;
}
.tldr::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: var(--gold-grad);
}
.tldr strong { color: var(--navy); }

/* ============================================================
   Section 通用
   ============================================================ */
.section { padding: 64px 0; position: relative; }
.section-alt { background: var(--white); }
.section h2 {
  font-size: 30px; color: var(--navy-deep); margin-bottom: 12px; font-weight: 800;
  letter-spacing: 0.3px; display: inline-block; position: relative;
}
.section h2::after {
  content: ""; position: absolute; left: 0; bottom: -8px; width: 56px; height: 3px;
  background: var(--gold-grad); border-radius: 3px;
}
.section .section-lead { color: var(--gray); max-width: 800px; margin-bottom: 34px; font-size: 15.5px; }
.section h3 { font-size: 20px; color: var(--navy); margin: 22px 0 10px; }

/* ============================================================
   数据统计条：深色发光数据带 + count-up
   ============================================================ */
.stats-bar {
  position: relative; overflow: hidden;
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 1px;
  background: rgba(184, 150, 62, 0.12);
  border-radius: 14px; padding: 0; margin: 30px 0;
  box-shadow: 0 12px 40px rgba(15, 27, 45, 0.22);
}
.stats-bar::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(150deg, rgba(26, 45, 74, 0.06), rgba(15, 27, 45, 0.12));
  pointer-events: none;
}
.stat {
  background: var(--navy-deep); padding: 24px 12px; text-align: center;
  /* 浮雕：顶部内高光 + 底部内阴影 */
  box-shadow: inset 0 1px 0 rgba(212, 185, 106, 0.14), inset 0 -1px 0 rgba(0, 0, 0, 0.45);
  transition: background var(--speed) var(--ease-out), box-shadow var(--speed) var(--ease-out);
}
.stat:hover {
  background: var(--navy);
  box-shadow: inset 0 1px 0 rgba(212, 185, 106, 0.24), inset 0 -1px 0 rgba(0, 0, 0, 0.45);
}
.stat-num {
  font-size: 30px; font-weight: 800; line-height: 1.2;
  background: var(--gold-grad);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  font-variant-numeric: tabular-nums;
  filter: drop-shadow(0 2px 6px rgba(184, 150, 62, 0.45));
}
.stat-unit { font-size: 17px; }
.stat-label { font-size: 13.5px; color: var(--gold-light); margin-top: 4px; font-weight: 600; }
.stat-note { font-size: 12px; color: #8b98a8; opacity: 0.9; }

/* ============================================================
   卡片：白卡 + 金色 hover 光
   ============================================================ */
.card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 28px; }
.card-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.card-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.card {
  position: relative;
  background: var(--white); border-radius: 14px;
  border: var(--card-border);
  padding: 0; overflow: hidden;
  /* 立体：顶部高光 + 底部厚度 + 深投影 */
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.9),
    inset 0 -1px 0 rgba(15, 27, 45, 0.04),
    0 1px 2px rgba(255, 255, 255, 0.5),
    0 6px 16px rgba(15, 27, 45, 0.1),
    0 18px 40px rgba(15, 27, 45, 0.12);
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out);
}
.card::after {
  content: ""; position: absolute; left: 2%; right: 2%; bottom: -5px; height: 5px;
  background: rgba(15, 27, 45, 0.12);
  border-radius: 0 0 14px 14px;
  filter: blur(2px); z-index: -1;
  transition: opacity 0.35s var(--ease-out);
}
.card::before {
  content: ""; position: absolute; inset: 0; border-radius: 14px;
  border: 1px solid transparent;
  background: linear-gradient(135deg, rgba(212, 185, 106, 0.6), rgba(184, 150, 62, 0.15)) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity 0.35s var(--ease-out);
  pointer-events: none;
}
.card:hover {
  transform: translateY(-7px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.95),
    0 2px 4px rgba(255, 255, 255, 0.6),
    0 22px 52px rgba(15, 27, 45, 0.18),
    0 0 0 1px rgba(184, 150, 62, 0.2);
}
.card:hover::before { opacity: 1; }
.card:hover::after { opacity: 0.5; }
.card-head {
  padding: 15px 20px; font-weight: 700; font-size: 16.5px; color: var(--white);
  position: relative; overflow: hidden;
}
.card-head::after {
  content: ""; position: absolute; top: 0; right: -30%; width: 60%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.18), transparent);
  transform: translateX(-100%); transition: transform 0.7s var(--ease-out);
}
.card:hover .card-head::after { transform: translateX(200%); }
.card-head.gold { background: linear-gradient(135deg, #C8A855, #A8823A); }
.card-head.navy { background: linear-gradient(135deg, var(--navy-mid), var(--navy)); }
.card-head.teal { background: linear-gradient(135deg, #21907C, var(--teal)); }
.card-head.brick { background: linear-gradient(135deg, #D0704E, var(--brick)); }
.card-body { padding: 18px 20px; font-size: 14px; }
.card-body ul { list-style: none; }
.card-body li { padding: 5px 0 5px 22px; position: relative; color: #4A4642; }
.card-body li::before {
  content: ""; position: absolute; left: 2px; top: 13px; width: 7px; height: 7px;
  border-radius: 2px; background: var(--gold-grad); transform: rotate(45deg);
}

/* ============================================================
   步骤流程
   ============================================================ */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 28px 0; }
.step {
  position: relative;
  background: var(--white); border-radius: 14px; box-shadow: var(--glow-soft);
  border: var(--card-border); padding: 22px 20px;
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out);
}
.step:hover { transform: translateY(-5px); box-shadow: 0 14px 36px rgba(15, 27, 45, 0.14); }
.step .step-num {
  font-size: 26px; font-weight: 800;
  background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.step h3 { margin: 8px 0 6px; font-size: 16.5px; color: var(--navy-deep); }
.step p { font-size: 13px; color: var(--gray); }

/* ============================================================
   截图展示：3D 立体立牌 + 光晕
   ============================================================ */

.shot-frame {
  background: linear-gradient(160deg, #1E3350, var(--navy-deep));
  border-radius: 14px; padding: 12px 12px 16px;
  border: 1px solid rgba(212, 185, 106, 0.2);
  position: relative; overflow: hidden;
  /* 平面简洁：圆角框 + 柔和投影 */
  box-shadow: 0 12px 32px rgba(15, 27, 45, 0.22);
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
}

/* 顶部金色装饰条 */
.shot-frame .shot-topbar {
  display: block; height: 3px;
  background: var(--gold-grad); border-radius: 2px; margin-bottom: 12px;
}
.shot-frame::after {
  content: ""; position: absolute; top: -40%; left: -30%; width: 60%; height: 120%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.07), transparent);
  transform: translateX(-150%) rotate(8deg);
  transition: transform 0.9s var(--ease-out);
  pointer-events: none;
}
.shot-frame:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 44px rgba(15, 27, 45, 0.28), var(--glow-gold);
}
.shot-frame:hover::after { transform: translateX(280%) rotate(8deg); }
.shot-frame img { border-radius: 8px; width: 100%; }
.shot-frame figcaption { color: #aab6c4; font-size: 13px; text-align: center; margin-top: 10px; letter-spacing: 0.3px; }

.phone-shot {
  background: linear-gradient(170deg, #1E3350, var(--navy-deep));
  border-radius: 24px; padding: 10px;
  max-width: 300px; margin: 0 auto;
  position: relative;
  /* 平面简洁：圆角框 + 柔和投影 */
  box-shadow: 0 12px 32px rgba(15, 27, 45, 0.22);
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
}

.phone-shot:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 44px rgba(15, 27, 45, 0.28), var(--glow-gold);
}

.phone-shot img { border-radius: 16px; }
.phone-shot figcaption { color: #aab6c4; font-size: 12px; text-align: center; margin-top: 8px; }

.shot-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }
.shot-row { display: flex; gap: 20px; flex-wrap: wrap; justify-content: center; }

/* 左 PC 大图 + 右手机图竖排 */
.shot-feature {
  display: grid; grid-template-columns: 1.55fr 1fr; gap: 30px; align-items: center;
  margin-top: 28px;
}
.shot-feature-main .shot-frame { width: 100%; }
.shot-feature-side { display: flex; flex-direction: column; gap: 20px; align-items: center; }
.shot-feature-side .phone-shot { max-width: 210px; }

/* 按端分组三列布局（三端协同） */
.shot-end-grid {
  display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 28px;
  align-items: start; margin-top: 28px;
}
.shot-end-col { display: flex; flex-direction: column; gap: 16px; }
.shot-end-title {
  font-size: 15px; font-weight: 800; text-align: center;
  padding: 10px 0; margin: 0; letter-spacing: 1px;
  background: linear-gradient(120deg, rgba(184, 150, 62, 0.1), rgba(184, 150, 62, 0.02));
  border-radius: 10px;
  color: var(--navy-deep); position: relative;
}
.shot-end-title::after {
  content: ""; position: absolute; left: 50%; bottom: 0; transform: translateX(-50%);
  width: 32px; height: 2px; background: var(--gold-grad); border-radius: 2px;
}
.shot-end-body { display: flex; flex-direction: column; gap: 18px; align-items: center; }
.shot-end-col .shot-frame { width: 100%; }
.shot-end-col .phone-shot { max-width: 190px; }
@media (max-width: 992px) { .shot-end-grid { grid-template-columns: 1fr; } }

/* ============================================================
   全景场景应用图（托育综合服务中心 3D 场景演示）
   ============================================================ */
.panorama {
  max-width: 1200px; margin: 28px auto 0;
  border-radius: 20px;
  box-shadow: 0 20px 50px rgba(15, 27, 45, 0.25);
}
.panorama svg { width: 100%; height: auto; display: block; }

/* 流程节点轮播高亮 */
.pano3d .pnode { transition: all 0.4s var(--ease-out); }
.pano3d .pnode.active rect {
  stroke: var(--gold-light); stroke-width: 2;
  filter: drop-shadow(0 0 10px rgba(212, 185, 106, 0.65));
}
.pano3d .pnode.active circle { filter: drop-shadow(0 0 8px rgba(212, 185, 106, 0.9)); }
.pano3d .pnode.active text:not(:first-of-type) { fill: var(--white); }

/* 中心脉冲光晕（大楼） */
.pano-pulse {
  transform-box: fill-box; transform-origin: center;
  animation: pano-pulse 3.2s ease-in-out infinite;
}
@keyframes pano-pulse {
  0%, 100% { opacity: 0.35; transform: scale(1); }
  50% { opacity: 0.85; transform: scale(1.07); }
}
/* 楼顶信标 */
.pano-beacon { animation: pano-beacon 1.6s ease-in-out infinite; }
@keyframes pano-beacon {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.25; }
}
@media (prefers-reduced-motion: reduce) {
  .pano-pulse, .pano-beacon { animation: none; }
}

/* ============================================================
   表格：金色渐变表头 + 行 hover
   ============================================================ */
.table-wrap { overflow-x: auto; margin: 28px 0; border-radius: 12px; box-shadow: var(--glow-soft); }
table {
  width: 100%; border-collapse: collapse; background: var(--white);
  font-size: 14px; overflow: hidden;
}
caption {
  caption-side: top; text-align: left; font-weight: 800; color: var(--navy-deep);
  padding: 12px 4px 14px; font-size: 16px; letter-spacing: 0.3px;
}
th {
  background: linear-gradient(135deg, var(--navy-deep), var(--navy));
  color: var(--gold-light); text-align: left; padding: 14px 16px;
  font-weight: 700; letter-spacing: 0.5px; font-size: 13.5px;
}
td { padding: 13px 16px; border-bottom: 1px solid #EDE9E2; vertical-align: top; transition: background 0.25s; }
tbody tr { transition: background 0.25s var(--ease-out); }
tbody tr:hover td { background: rgba(212, 185, 106, 0.07); }
tr:nth-child(even) td { background: var(--cream); }
tr:nth-child(even):hover td { background: rgba(212, 185, 106, 0.09); }

/* ============================================================
   FAQ：平滑展开
   ============================================================ */
.faq-list { max-width: 900px; margin: 0 auto; }
.faq-item {
  background: var(--white); border-radius: 12px;
  box-shadow: var(--glow-soft); border: var(--card-border);
  margin-bottom: 14px; overflow: hidden;
  transition: box-shadow 0.3s var(--ease-out), border-color 0.3s;
}
.faq-item[open] { box-shadow: 0 10px 34px rgba(15, 27, 45, 0.14), 0 0 0 1px rgba(184, 150, 62, 0.18); }
.faq-item summary {
  padding: 17px 22px; font-weight: 700; color: var(--navy-deep); cursor: pointer;
  list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 12px;
  transition: color 0.3s;
}
.faq-item summary:hover { color: var(--gold); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 17px; color: var(--navy-deep); font-weight: 400;
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  transition: transform 0.35s var(--ease-out);
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-answer { padding: 0 22px 20px; color: var(--ink); font-size: 14.5px; line-height: 1.9; }

/* ============================================================
   CTA 横幅：光晕
   ============================================================ */
.cta-band {
  position: relative; overflow: hidden;
  background: var(--navy-grad); color: var(--white);
  text-align: center; padding: 58px 24px;
  border-top: 1px solid rgba(212, 185, 106, 0.3);
  border-bottom: 1px solid rgba(212, 185, 106, 0.3);
}
.cta-band::before {
  content: ""; position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 560px; height: 300px;
  background: radial-gradient(ellipse, rgba(212, 185, 106, 0.2) 0%, transparent 65%);
  filter: blur(30px); pointer-events: none;
}
.cta-band h2 { position: relative; color: var(--white); font-size: 28px; margin-bottom: 10px; font-weight: 800; }
.cta-band p { position: relative; color: var(--gold-light); margin-bottom: 26px; }
.cta-band .btn { position: relative; }

/* ============================================================
   面包屑（深蓝一体）
   ============================================================ */
.breadcrumb {
  background: var(--navy-deep); padding: 11px 0; font-size: 13px;
  border-bottom: 1px solid rgba(212, 185, 106, 0.15);
}
.breadcrumb ol { list-style: none; display: flex; gap: 8px; flex-wrap: wrap; }
.breadcrumb li + li::before { content: "›"; margin-right: 8px; color: #5a6b80; }
.breadcrumb a { color: #8b98a8; transition: color 0.3s; }
.breadcrumb a:hover { color: var(--gold-light); }
.breadcrumb li[aria-current="page"] { color: var(--gold-light); }

/* ============================================================
   博客
   ============================================================ */
.page-hero {
  position: relative; overflow: hidden;
  background: var(--navy-grad); color: var(--white);
  padding: 52px 0 44px;
  border-bottom: 1px solid rgba(212, 185, 106, 0.3);
}
.page-hero::before {
  content: ""; position: absolute; top: -60%; right: -5%; width: 560px; height: 560px;
  background: radial-gradient(circle, rgba(212, 185, 106, 0.16) 0%, transparent 65%);
  filter: blur(16px); pointer-events: none;
}
.page-hero > .container { position: relative; z-index: 2; }
.page-hero h1 { font-size: 32px; margin-bottom: 10px; font-weight: 800; }
.page-hero .page-meta { color: #8b98a8; font-size: 13px; }

.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 28px; }
.blog-card {
  background: var(--white); border-radius: 14px; box-shadow: var(--glow-soft);
  border: var(--card-border); overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out);
  position: relative;
}
.blog-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gold-grad); transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s var(--ease-out);
}
.blog-card:hover { transform: translateY(-6px); box-shadow: 0 16px 44px rgba(15, 27, 45, 0.15); }
.blog-card:hover::before { transform: scaleX(1); }
.blog-card .blog-body { padding: 18px 20px; flex: 1; }
.blog-card .blog-tag { color: var(--gold); font-size: 12px; font-weight: 700; letter-spacing: 0.5px; }
.blog-card h3 { font-size: 17px; margin: 8px 0; line-height: 1.5; }
.blog-card h3 a { color: var(--navy-deep); transition: color 0.3s; }
.blog-card h3 a:hover { color: var(--gold); }
.blog-card p { font-size: 13.5px; color: var(--gray); }
.blog-card .blog-date { font-size: 12px; color: #a09a92; margin-top: 12px; }

.article {
  max-width: 860px; margin: 0 auto;
  background: var(--white); border-radius: 16px; box-shadow: var(--glow-soft);
  padding: 40px 48px;
}
.article h1 { font-size: 30px; color: var(--navy-deep); margin-bottom: 8px; font-weight: 800; line-height: 1.4; }
.article .article-meta {
  color: var(--gray); font-size: 13px; margin-bottom: 26px;
  border-bottom: 1px solid #EDE9E2; padding-bottom: 18px;
}
.article h2 {
  font-size: 22px; color: var(--navy); margin: 32px 0 14px; font-weight: 800;
  padding-bottom: 8px; border-bottom: 2px solid transparent;
  background-image: linear-gradient(90deg, var(--gold) 0 56px, #EDE9E2 56px);
  background-repeat: no-repeat; background-size: 100% 2px; background-position: 0 100%;
}
.article h3 { font-size: 18px; color: var(--navy-mid); margin: 22px 0 8px; font-weight: 700; }
.article p { margin-bottom: 15px; }
.article ul, .article ol { margin: 10px 0 18px 24px; }
.article li { margin-bottom: 7px; }
.article .related { border-top: 1px solid #EDE9E2; margin-top: 34px; padding-top: 20px; }
.article .related h3 { color: var(--navy-deep); }
.related-box { background: linear-gradient(120deg, var(--cream), #FDFBF6); border-radius: 10px; padding: 16px 20px; margin-top: 12px; }
.related-box li a { transition: color 0.3s; }

/* ============================================================
   联系方式
   ============================================================ */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 28px; }
.contact-card {
  background: var(--white); border-radius: 14px; box-shadow: var(--glow-soft);
  border: var(--card-border); padding: 28px 20px; text-align: center;
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out);
}
.contact-card:hover { transform: translateY(-5px); box-shadow: 0 14px 38px rgba(15, 27, 45, 0.14); }
.contact-card .contact-icon { font-size: 32px; filter: drop-shadow(0 0 8px rgba(184, 150, 62, 0.4)); }
.contact-card h3 { font-size: 16px; margin: 10px 0; color: var(--navy-deep); }
.contact-card p { color: var(--gray); font-size: 14px; }

/* ============================================================
   Footer：深蓝渐变 + 光晕线
   ============================================================ */
.site-footer {
  position: relative;
  background: var(--navy-grad);
  color: #cdd6e0; padding: 52px 0 26px;
  border-top: 1px solid rgba(212, 185, 106, 0.25);
  margin-top: 70px;
}
.site-footer::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, rgba(212, 185, 106, 0.55), transparent);
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 32px; }
.footer-title {
  color: var(--gold-light); font-size: 15px; margin-bottom: 14px; font-weight: 700; letter-spacing: 0.5px;
}
.site-footer p { font-size: 13.5px; }
.site-footer ul { list-style: none; }
.site-footer li { margin-bottom: 7px; }
.site-footer a { color: #aab6c4; font-size: 13.5px; transition: color 0.3s, padding-left 0.3s var(--ease-out); }
.site-footer a:hover { color: var(--gold-light); padding-left: 4px; text-decoration: none; }
.footer-slogan { color: var(--gold); margin-top: 10px; font-size: 13px; letter-spacing: 1px; }
.footer-keywords { margin-top: 32px; padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, 0.08); }
.footer-keywords p { font-size: 12.5px; line-height: 2.3; }
.footer-keywords a { color: #7c8aa0; }
.footer-keywords a:hover { color: var(--gold-light); }
.footer-copy { margin-top: 24px; text-align: center; color: #5a6b80; font-size: 12.5px; }

/* ============================================================
   悬浮预约演示按钮（发光胶囊）
   ============================================================ */
.float-cta {
  position: fixed; right: 26px; bottom: 26px; z-index: 999;
  display: inline-flex; align-items: center; gap: 9px;
  padding: 13px 24px;
  background: var(--gold-grad); color: var(--navy-deep);
  font-size: 15px; font-weight: 800; border-radius: 999px;
  box-shadow: 0 6px 24px rgba(184, 150, 62, 0.5), var(--glow-gold), inset 0 1px 0 rgba(255, 255, 255, 0.4);
  text-decoration: none;
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
  animation: float-in 0.7s var(--ease-out) 0.4s both;
}
.float-cta:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 10px 34px rgba(184, 150, 62, 0.6), 0 0 60px rgba(212, 185, 106, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.5);
  color: var(--navy-deep); text-decoration: none;
}
.float-cta-icon { font-size: 17px; }
@keyframes float-in { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: none; } }
@media (max-width: 768px) {
  .float-cta { right: 16px; bottom: 16px; padding: 11px 17px; font-size: 14px; }
}

/* ============================================================
   404
   ============================================================ */
.notfound { text-align: center; padding: 110px 24px; }
.notfound h1 {
  font-size: 96px; font-weight: 800;
  background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 24px rgba(184, 150, 62, 0.3));
}
.notfound p { color: var(--gray); margin: 16px 0 28px; }

/* ============================================================
   动效：滚动 reveal（stagger 支持）
   ============================================================ */
.fade-up { opacity: 0; transform: translateY(22px); transition: opacity 0.55s var(--ease-out), transform 0.55s var(--ease-out); }
.fade-up.visible { opacity: 1; transform: none; }
}
.fade-up.d1 { transition-delay: 0.08s; }
.fade-up.d2 { transition-delay: 0.16s; }
.fade-up.d3 { transition-delay: 0.24s; }
.fade-up.d4 { transition-delay: 0.32s; }
@media (prefers-reduced-motion: reduce) {
  .fade-up { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 992px) {
  .card-grid, .card-grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .card-grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-bar { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 34px; }
}
@media (max-width: 768px) {
  .site-nav {
    display: none; position: absolute; top: 66px; left: 0; right: 0;
    background: rgba(11, 20, 36, 0.98); backdrop-filter: blur(12px);
    padding: 14px 24px 22px; border-bottom: 1px solid rgba(212, 185, 106, 0.25);
  }
  .site-nav.open { display: block; animation: nav-in 0.3s var(--ease-out); }
  @keyframes nav-in { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }
  .site-nav ul { flex-direction: column; }
  .site-nav a { padding: 13px 10px; font-size: 15px; }
  .nav-toggle { display: block; }
  .hero { padding: 64px 0 56px; }
  .hero h1 { font-size: 28px; }
  .card-grid, .card-grid.cols-2, .card-grid.cols-3 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .shot-pair { grid-template-columns: 1fr; }
  .article { padding: 26px 20px; border-radius: 12px; }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 48px 0; }
  .section h2 { font-size: 25px; }
}