/* =============================================
   方案页面专用样式 - fangan1.css
   仅在 .solution-page 作用域内生效，避免影响其他页面
   ============================================= */

:root{
  --brand: var(--brand-primary, #1677ff);
  --brand-grad: var(--brand-gradient, linear-gradient(90deg, #1677ff 0%, #4A9EFF 100%));
  --card-bg: #fff;
  --muted: #6b7280;
  --text: #0b1220;
  --border: rgba(31,41,55,.12);
  --shadow: 0 6px 20px rgba(24, 144, 255, 0.10);
}

/* 容器与区块 */
.solution-page { margin: 36px 0 0 0; }
.solution-page .section { margin: 0 auto 44px auto; padding-top: 4px; padding-bottom: 44px; }
.solution-page .section-header { text-align: center; margin-bottom: 18px; }
.solution-page .section-title { font-size: 30px; font-weight: 800; color: #0f172a; margin: 0 0 10px 0; letter-spacing: -0.01em; }
.solution-page .section-title::after { content: ""; display: block; width: 64px; height: 4px; border-radius: 4px; margin: 10px auto 0; background: var(--brand-grad); box-shadow: 0 6px 18px rgba(24,144,255,.22); }
.solution-page .section-sub { color: #475569; margin: 8px auto 0; max-width: 900px; line-height: 1.9; font-size: 15px; }

/* 交替色带背景改到内容容器，标题保持在外 */
.solution-page .section-body { background: #ffffff; border-radius: 16px; box-shadow: 0 2px 12px rgba(24,144,255,0.05); padding: 18px; }
.solution-page > .section:nth-of-type(odd) .section-body { background: linear-gradient(180deg, #fbfdff 0%, #ffffff 100%); }

/* 网格与卡片 */
.solution-page .cards-grid { display: grid; gap: 22px; }
.solution-page .grid-3 { grid-template-columns: repeat(3, 1fr); }
.solution-page .grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1100px) { .solution-page .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 720px)  { .solution-page .grid-3, .solution-page .grid-4 { grid-template-columns: 1fr; } }

.solution-page .card {
  background: var(--card-bg);
  border-radius: 16px;
  border: 1px solid rgba(24, 144, 255, 0.08);
  box-shadow: 0 4px 16px rgba(24, 144, 255, 0.08);
  padding: 20px;
  transition: box-shadow .2s ease, transform .2s ease;
}
.solution-page .card:hover { box-shadow: 0 16px 40px rgba(24, 144, 255, 0.16); transform: translateY(-4px); }
.solution-page .card-media { border-radius: 14px; overflow: hidden; background: #f7f9fc; }
.solution-page .card-media img { width: 100%; object-fit: cover; display: block; }
.solution-page .card-title { margin: 8px 0 6px; font-weight: 700; color: #181c32; font-size: 18px; }
.solution-page .card-text { margin: 0; color: #4b5563; line-height: 1.8; font-size: 14px; }
/* 适用场景 - 要点标签 */
.solution-page .scene-card .scene-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; padding: 0; list-style: none; }
.solution-page .scene-card .scene-tags li { background: #f5f7fa; border: 1px solid #eef3ff; color: #64748b; padding: 2px 8px; border-radius: 999px; font-size: 12px; }

/* 快速指标 */
.solution-page .quick-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin: 16px 0 0; padding: 0; list-style: none; }
.solution-page .quick-stats li { background: linear-gradient(135deg,#f8faff 0%,#f0f7ff 100%); border: 1px solid rgba(24,144,255,.1); border-radius: 12px; padding: 12px 16px; text-align: center; }
.solution-page .quick-stats strong { display: block; font-size: 18px; color: #111827; }
.solution-page .quick-stats span { color: var(--muted); font-size: 13px; }
@media (max-width: 720px) { .solution-page .quick-stats { grid-template-columns: 1fr; } }

/* 设备选型 - 选项卡 */
.solution-page .tabs { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; margin-bottom: 20px; }
.solution-page .tab-btn { background: #f5f7fa; border: 1px solid #eef3ff; color: #1f2937; border-radius: 999px; padding: 10px 20px; font-size: 14px; font-weight: 700; letter-spacing: .2px; cursor: pointer; transition: background-color .2s ease, color .2s ease, box-shadow .2s ease, border-color .2s ease; margin: 4px 2px; will-change: background-color, box-shadow, color, border-color; }
.solution-page .tab-btn:hover { background: #e6f7ff; color: var(--brand); }
.solution-page .tab-btn.active { background: var(--brand-grad); color: #fff; border-color: #eef3ff; box-shadow: 0 10px 28px rgba(24,144,255,.22); }
.solution-page .tab-panels { margin-top: 8px; position: relative; min-height: 360px; }
@media (max-width: 900px){ .solution-page .tab-panels { min-height: 320px; } }
.solution-page .tab-panel { display: none; }
.solution-page .tab-panel.active { display: block; }

/* Tab 焦点可访问样式（不改变尺寸，避免闪烁） */
.solution-page .tab-btn:focus-visible { outline: 2px solid var(--brand, #1677ff); outline-offset: 2px; }

/* 设备选型 - 辅助文案与系列头部（已移除对应结构） */

.solution-page .products-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
@media (max-width: 1100px) { .solution-page .products-grid { grid-template-columns: repeat(3,1fr); } }
@media (max-width: 900px)  { .solution-page .products-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 540px)  { .solution-page .products-grid { grid-template-columns: 1fr; } }

.solution-page .product-mini { display: flex; flex-direction: column; gap: 10px; align-items: center; text-decoration: none; color: inherit; background: #fff; border: 1px solid rgba(24,144,255,.08); border-radius: 16px; padding: 16px; transition: all .2s ease; }
.solution-page .product-mini:hover { box-shadow: 0 16px 40px rgba(24,144,255,.16); transform: translateY(-4px) scale(1.01); }
.solution-page .product-mini img { width: 100%; border-radius: 14px; aspect-ratio: 1 / 1; object-fit: cover; background: #f7f9fc; }
.solution-page .product-mini h4 { margin: 0; font-size: 16px; font-weight: 700; color: #181c32; }
.solution-page .product-mini h4 .badge { display: inline-block; margin-left: 6px; padding: 2px 8px; font-size: 12px; font-weight: 700; color: #8c6d00; background: rgba(212,175,55,.10); border: 1px solid rgba(212,175,55,.20); border-radius: 999px; vertical-align: middle; }
.solution-page .product-mini .subtitle { margin: 2px 0 0; color: #64748b; font-size: 13px; }

/* 系列标签/提示相关样式已移除 */

/* 设备选型 - 查看全部 */
.solution-page .products-footer { margin-top: 14px; text-align: center; }
.solution-page .products-footer .btn { height: 42px; padding: 0 22px; }

/* 实施流程 */
.solution-page .workflow { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; counter-reset: step; list-style: none; padding: 0; margin: 0; }
@media (max-width: 900px){ .solution-page .workflow { grid-template-columns: 1fr; } }
.solution-page .step { background: linear-gradient(180deg,#fff,#fbfdff); border: 1px solid #eef3ff; border-radius: 16px; padding: 18px; box-shadow: 0 4px 16px rgba(0,114,206,0.06); }
.solution-page .step .num { display: inline-flex; width: 40px; height: 40px; border-radius: 12px; background: linear-gradient(135deg, var(--brand) 0%, #4A9EFF 100%); color: #fff; align-items: center; justify-content: center; font-weight: 800; margin-bottom: 10px; }
.solution-page .step h4 { margin: 4px 0 6px; font-weight: 700; color: #111827; }
.solution-page .step p { margin: 0; color: #4b5563; }
/* 步骤要点列表 */
.solution-page .step-list { margin: 10px 0 0; padding: 0; list-style: none; display: grid; gap: 6px; }
.solution-page .step-list li { position: relative; padding-left: 16px; color: #475569; font-size: 13px; line-height: 1.7; }
.solution-page .step-list li::before { content: ""; position: absolute; left: 0; top: 9px; width: 8px; height: 8px; border-radius: 50%; background: #cfe4ff; box-shadow: 0 0 0 2px #eaf2ff inset; }

/* 成功案例 */
.solution-page .cases-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
@media (max-width: 900px){ .solution-page .cases-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 640px){ .solution-page .cases-grid { grid-template-columns: 1fr; } }

/* 成功案例 - 大图横卡片 */
.solution-page .hero-cases { grid-template-columns: repeat(3, 1fr); }
.solution-page .case-card { position: relative; display: block; border-radius: 16px; overflow: hidden; background: #000; min-height: 220px; box-shadow: 0 12px 32px rgba(24,144,255,.12); border: 1px solid rgba(24,144,255,.12); }
.solution-page .case-card img { width: 100%; height: 100%; min-height: 220px; object-fit: cover; display: block; opacity: .92; transition: transform .4s ease, opacity .3s ease; }
.solution-page .case-card:hover img { transform: scale(1.04); opacity: 1; }
.solution-page .case-card .case-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.0) 30%, rgba(0,0,0,.55) 100%); display: flex; align-items: flex-end; padding: 14px; }
.solution-page .case-card .case-title { margin: 0; color: #fff; font-size: 18px; font-weight: 800; }
.solution-page .case-card .case-sub { margin: 2px 0 0; color: rgba(255,255,255,.85); font-size: 13px; }

/* 成功案例 - 简洁卡片（16:9 大图 + 下方信息） */
.solution-page .case-block { margin: 0; background: #fff; border: 1px solid rgba(24,144,255,.08); border-radius: 16px; overflow: hidden; box-shadow: 0 6px 20px rgba(24,144,255,.10); }
.solution-page .case-block img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; display: block; }
.solution-page .case-block figcaption { padding: 12px 14px; }
.solution-page .case-block .case-title { margin: 0 0 4px; font-size: 16px; font-weight: 800; color: #0f172a; }
.solution-page .case-block .case-sub { margin: 0; color: #475569; font-size: 13px; }

/* 保障与标准 / 交付清单 / 时效承诺 */
.solution-page .trust-addons { margin-top: 18px; display: grid; gap: 18px; }
.solution-page .trust-two-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: stretch; }
@media (max-width: 900px){ .solution-page .trust-two-cols { grid-template-columns: 1fr; } }
.solution-page .trust-strip { display: grid; grid-template-columns: repeat(4,1fr); gap: 12px; }
@media (max-width: 900px){ .solution-page .trust-strip { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 540px){ .solution-page .trust-strip { grid-template-columns: 1fr; } }
.solution-page .trust-badge { text-align: center; padding: 10px 12px; border-radius: 999px; background: linear-gradient(135deg,#f8faff,#f1f6ff); border: 1px solid #e5f0ff; color: #0f172a; font-weight: 700; font-size: 13px; box-shadow: 0 2px 10px rgba(24,144,255,.08); }

.solution-page .deliverables { background: #fff; border: 1px solid #eef3ff; border-radius: 14px; padding: 14px; box-shadow: 0 4px 16px rgba(24,144,255,.06); }
.solution-page .deliver-title { margin: 0 0 8px; font-size: 16px; font-weight: 800; color: #0f172a; }
.solution-page .deliver-list { margin: 0; padding: 0; list-style: none; display: grid; gap: 6px; }
.solution-page .deliver-list li { position: relative; padding-left: 18px; color: #475569; }
.solution-page .deliver-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: #1677ff; font-weight: 800; }

.solution-page .timeline { display: grid; gap: 10px; padding: 12px; border: 1px dashed #dbeafe; border-radius: 12px; background: linear-gradient(180deg,#fbfdff,#ffffff); }
.solution-page .milestone { display: flex; align-items: center; gap: 10px; }
.solution-page .milestone .m-dot { width: 10px; height: 10px; border-radius: 50%; background: #1677ff; box-shadow: 0 0 0 4px rgba(22,119,255,.12); }
.solution-page .milestone .m-info { display: flex; gap: 8px; align-items: baseline; color: #0f172a; }
.solution-page .milestone .m-info strong { font-size: 14px; }
.solution-page .milestone .m-info span { color: #475569; font-size: 13px; }

/* FAQ */
.solution-page .faq-list { text-align: left; }
.solution-page .faq-list details { background: #fff; border: 1px solid #eef3ff; border-radius: 14px; padding: 14px 16px; margin-bottom: 12px; box-shadow: 0 8px 24px rgba(24,144,255,.08); }
.solution-page .faq-list summary { cursor: pointer; font-weight: 800; color: #0f172a; line-height: 1.6; }
.solution-page .faq-list details[open] summary { color: var(--brand, #1677ff); }
.solution-page .faq-list p { margin: 8px 0 0; color: #4b5563; line-height: 1.8; }

/* CTA 样式统一为品牌风格 */
.solution-page .cta-section { padding: 0; }
.solution-page .cta-section .cta-card { background: linear-gradient(180deg,#ffffff 0%, #f6faff 100%); border: 1px solid #e6f0ff; border-radius: 16px; padding: 22px; box-shadow: 0 10px 28px rgba(24,144,255,.10); display: flex; align-items: center; justify-content: space-between; gap: 16px; }
@media (max-width: 820px){ .solution-page .cta-section .cta-card { flex-direction: column; align-items: flex-start; } }
.solution-page .cta-section .cta-info h3 { margin: 0 0 8px; font-size: 22px; font-weight: 800; color: #0f172a; letter-spacing: -0.01em; }
.solution-page .cta-section .cta-info p { margin: 0; color: #4b5563; line-height: 1.8; }
.solution-page .cta-section .cta-actions { display: flex; gap: 10px; }
.solution-page .btn { display: inline-flex; align-items: center; justify-content: center; height: 40px; padding: 0 18px; border-radius: 999px; font-weight: 700; font-size: 14px; text-decoration: none; border: 1px solid transparent; cursor: pointer; }
.solution-page .cta-section .btn.btn-primary { background: var(--brand-grad); color: #fff; border: none; box-shadow: 0 10px 24px rgba(24,144,255,.20); }
.solution-page .cta-section .btn.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(24,144,255,.28); }
.solution-page .cta-section .btn.btn-ghost { background: #fff; border: 1px solid #e6f0ff; color: #0f172a; }
.solution-page .cta-section .btn.btn-ghost:hover { background: #f8fbff; }

/* 全局按钮（适用于产品“查看全部”等场景） */
.solution-page .btn-primary { background: var(--brand-grad); color: #fff; border: none; box-shadow: 0 8px 18px rgba(24,144,255,.18); }
.solution-page .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(24,144,255,.26); }
.solution-page .btn-ghost { background: #fff; border: 1px solid #e6f0ff; color: #0f172a; }
.solution-page .btn-ghost:hover { background: #f8fbff; }

/* 旧 CTA 样式已移除，避免重复与冲突 */