/* ============================================================
   睿小匠深圳 · 设计体系 v4 —— 极简 / 科技 / 高级 / 产品感
   • 基础：Tailwind CSS (Play CDN) + 以下少量自定义层
   • 质感：细边框 / 轻阴影 / backdrop-blur 玻璃 / noise 纹理
   • 动效：克制 hover / scroll reveal / stagger
   ============================================================ */

:root {
  --szi-bg: #ffffff;
  --szi-bg-soft: #f7f8fa;
  --szi-ink: #16181d;
  --szi-mut: #6b7280;
  --szi-line: rgba(15, 20, 30, .08);
  --szi-line-soft: rgba(15, 20, 30, .05);
  --szi-accent: #3f7df2;
  --szi-accent-soft: rgba(63, 125, 242, .16);
  --szi-radius: 14px;
  --szi-font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
              "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

/* ---------- 基础（白底 · 深字） ---------- */
.szi-html { background: var(--szi-bg); }
.szi-html body { background: var(--szi-bg); color: var(--szi-ink); font-family: var(--szi-font); -webkit-font-smoothing: antialiased; }
.szi-html * { box-sizing: border-box; }
/* 用 :where 将链接默认颜色降到零特异性，避免覆盖带显式 color 的按钮类（如 .szi-cta-btn-blue、.szi-mobile-link） */
.szi-html :where(a) { text-decoration: none; color: inherit; }
.szi-html img { max-width: 100%; }

/* ---------- noise 纹理（全局极轻） ---------- */
.szi-noise::after {
  content: "";
  position: fixed; inset: 0; z-index: 90; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3CfeComponentTransfer%3E%3CfeFuncA type='linear' slope='0.05'/%3E%3C/feComponentTransfer%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: .5;
}

/* ---------- 渐变网格背景（hero 氛围） ---------- */
.szi-mesh {
  background:
    radial-gradient(42% 55% at 18% 12%, rgba(63, 125, 242, .22) 0%, transparent 62%),
    radial-gradient(38% 46% at 84% 68%, rgba(86, 140, 255, .14) 0%, transparent 58%),
    radial-gradient(60% 60% at 50% 110%, rgba(63, 125, 242, .10) 0%, transparent 55%),
    var(--szi-bg);
}

/* ---------- 玻璃卡片 ---------- */
.szi-glass {
  background: linear-gradient(180deg, rgba(255, 255, 255, .055), rgba(255, 255, 255, .025));
  border: 1px solid var(--szi-line);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

/* ---------- 细线按钮 ---------- */
.szi-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 0 22px; border-radius: 10px;
  font-size: 14px; font-weight: 600; letter-spacing: .2px;
  border: 1px solid var(--szi-line); color: var(--szi-ink);
  background: rgba(255, 255, 255, .03); cursor: pointer;
  transition: border-color .2s, background .2s, transform .2s, box-shadow .2s;
}
.szi-btn:hover { border-color: rgba(255, 255, 255, .22); background: rgba(255, 255, 255, .06); transform: translateY(-1px); }
.szi-btn--primary { background: var(--szi-accent); border-color: var(--szi-accent); color: #fff; box-shadow: 0 8px 28px rgba(63, 125, 242, .25); }
.szi-btn--primary:hover { background: #4f89fb; border-color: #4f89fb; box-shadow: 0 10px 34px rgba(63, 125, 242, .35); }
/* 深色背景上的描边按钮（Hero 电话咨询等）：白字 + 半透明白边框 */
.szi-btn--ghost {
  border-color: rgba(255, 255, 255, .28); color: #fff; background: rgba(255, 255, 255, .06);
}
.szi-btn--ghost:hover { border-color: rgba(255, 255, 255, .5); background: rgba(255, 255, 255, .12); color: #fff; }
.szi-btn--ghost .sz-ico, .szi-btn--ghost svg { color: #7ea6f5; }

/* ---------- 通用 SVG 图标尺寸（弹窗按钮 / 标题图标等） ---------- */
.sz-ico { width: 18px; height: 18px; flex-shrink: 0; }

/* ---------- 标签 ---------- */
.szi-pill {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 5px 12px; border-radius: 999px;
  border: 1px solid var(--szi-line); background: rgba(255, 255, 255, .04);
  color: var(--szi-mut); font-size: 12px; letter-spacing: .4px;
}

/* ---------- 卡片悬浮 ---------- */
.szi-card-hover { transition: border-color .25s, background .25s, transform .25s, box-shadow .25s; }
.szi-card-hover:hover { border-color: rgba(255, 255, 255, .16); background: rgba(255, 255, 255, .045); transform: translateY(-2px); box-shadow: 0 18px 40px rgba(0, 0, 0, .35); }

/* ---------- 导航（深色玻璃 · 白字白 LOGO 全局可读 · 静态样式） ---------- */
.szi-nav { position: fixed; top: 0; left: 0; right: 0; z-index: 80; background: rgba(7, 9, 15, .72); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid rgba(255, 255, 255, .08); }
.szi-nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.szi-nav-logo { display: flex; align-items: center; }
.szi-nav-logo img { height: 44px; width: auto; }
.szi-nav-menu { display: flex; align-items: center; gap: 4px; }
.szi-nav a.szi-nav-link { color: rgba(233, 237, 245, .72); font-size: 14px; padding: 8px 14px; transition: color .2s, background .2s; }
.szi-nav a.szi-nav-link:hover { color: #fff; background: rgba(255, 255, 255, .06); }
.szi-nav-right { display: flex; align-items: center; gap: 12px; }
.szi-nav a.szi-nav-phone {
    display: inline-flex; align-items: center; gap: 8px;
    height: 40px; padding: 0 16px; border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, .28); background: rgba(255, 255, 255, .08);
    color: #FFFFFF; font-size: 14px; font-weight: 500;
    transition: background .2s, border-color .2s;
}
.szi-nav-phone:hover { background: rgba(255, 255, 255, .16); border-color: rgba(255, 255, 255, .42); }
.szi-nav-phone-ico { width: 16px; height: 16px; color: #7ea6f5; }
.szi-nav-burger {
    display: none; width: 40px; height: 40px; align-items: center; justify-content: center;
    border-radius: 10px; border: 1px solid rgba(255, 255, 255, .25); background: transparent;
    cursor: pointer;
}
.szi-nav-burger-ico { width: 20px; height: 20px; color: #fff; }
@media (max-width: 992px) {
    .szi-nav-menu { display: none; }
    .szi-nav-burger { display: flex; }
}
@media (max-width: 640px) {
    .szi-nav-phone { display: none; }
}

/* ---------- 移动端全屏遮罩菜单（整页遮挡 · 静态样式） ---------- */
.szi-mobile-menu {
    display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; z-index: 200;
    background: rgba(5, 7, 12, .96); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
    padding: calc(24px + env(safe-area-inset-top)) 24px 32px;
    overflow-y: auto;
}
.szi-mobile-menu.open { display: block; animation: sziMenuIn .28s cubic-bezier(.22, 1, .36, 1); }
@keyframes sziMenuIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: none; }
}
.szi-mobile-menu-head {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 20px;
}
.szi-mobile-menu-title { font-size: 16px; font-weight: 600; color: #fff; letter-spacing: .3px; }
.szi-mobile-menu-close {
    display: flex; align-items: center; justify-content: center;
    width: 36px; height: 36px; border-radius: 10px;
    background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .12);
    color: rgba(255, 255, 255, .85); font-size: 18px; line-height: 1; cursor: pointer;
    transition: background .2s, color .2s;
}
.szi-mobile-menu-close:hover { background: rgba(255, 255, 255, .14); color: #fff; }
.szi-mobile-link {
    display: flex; align-items: center; gap: 10px;
    padding: 15px 18px; border-radius: 14px;
    background: rgba(255, 255, 255, .05); color: rgba(255, 255, 255, .9);
    font-size: 16px; font-weight: 500; margin-bottom: 8px;
    border: 1px solid rgba(255, 255, 255, .08);
    transition: background .2s, transform .2s;
}
.szi-mobile-link:hover { background: rgba(63, 125, 242, .18); }
.szi-mobile-link.szi-mobile-phone { color: #FFFFFF; border-color: rgba(63, 125, 242, .5); background: rgba(63, 125, 242, .12); }
.szi-mobile-phone .szi-nav-phone-ico { color: #7ea6f5; }

/* ---------- 首屏 ---------- */
.szi-hero { position: relative; min-height: 100svh; display: flex; flex-direction: column; overflow: hidden; }
.szi-hero-inner { position: relative; z-index: 10; flex: 1; display: flex; flex-direction: column; justify-content: flex-end; padding: 120px 0 56px; }
.szi-orb-canvas { position: absolute; inset: 0; z-index: 1; opacity: .9; pointer-events: none; }

/* ---------- 滚动显现动画 ---------- */
.szi-reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s cubic-bezier(.22, 1, .36, 1), transform .7s cubic-bezier(.22, 1, .36, 1); }
.szi-reveal.is-in { opacity: 1; transform: none; }

/* ---------- FAQ ---------- */
.szi-faq-q { padding: 18px 0; border-bottom: 1px solid rgba(15, 20, 30, .08); }
.szi-faq-a { max-height: 0; overflow: hidden; transition: max-height .35s cubic-bezier(.22, 1, .36, 1), padding .35s; }
.szi-faq-item.open .szi-faq-a { max-height: 280px; }

/* ---------- 客户评价横向滚动轨道（静态样式，不依赖 Tailwind） ---------- */
.szi-review-track {
    display: flex; gap: 16px;
    overflow-x: auto; overflow-y: hidden;
    padding-bottom: 4px;
    scroll-behavior: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}
.szi-review-track::-webkit-scrollbar { display: none; }
.szi-review-track > * { flex: 0 0 340px; }

/* ---------- 尾屏 CTA 面板 ---------- */
.szi-cta-panel { background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.015)); }

/* ============================================================
   报价弹窗 + 右侧浮动条（结构复制自广州站 common.css，配色适配深圳深色风）
   ============================================================ */

/* ---------- 右侧浮动操作条（深色玻璃 · 呼应顶部导航设计语言） ---------- */
.szi-float-bar {
    position: fixed; right: 22px; bottom: 88px; z-index: 999;
    display: flex; flex-direction: column; gap: 2px;
    padding: 6px;
    background: rgba(7, 9, 15, .78);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: 18px;
    box-shadow: 0 18px 44px rgba(0, 0, 0, .38), inset 0 1px 0 rgba(255, 255, 255, .04);
}
.szi-float-btn {
    position: relative;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 5px;
    width: 58px; padding: 12px 0;
    border: none; background: transparent; cursor: pointer;
    font-family: inherit; border-radius: 13px; color: rgba(233, 237, 245, .72);
    font-size: 11px; letter-spacing: .3px;
    transition: background .2s, color .2s, transform .2s;
}
.szi-float-btn:hover { background: rgba(255, 255, 255, .06); color: #fff; transform: translateY(-1px); }
.szi-float-ico {
    width: 34px; height: 34px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 10px;
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(255, 255, 255, .08);
    color: #8fa7d8;
    transition: background .2s, color .2s, border-color .2s, box-shadow .2s;
}
.szi-float-ico svg { width: 18px; height: 18px; }
.szi-float-btn:hover .szi-float-ico {
    background: rgba(63, 125, 242, .16);
    border-color: rgba(63, 125, 242, .4);
    color: #7ea6f5;
}
/* 主 CTA（AI 预估）：蓝色渐变发光徽章 */
.szi-float-btn--accent .szi-float-ico {
    background: linear-gradient(135deg, #3f7df2, #2b5fe0);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 4px 16px rgba(63, 125, 242, .45);
}
.szi-float-btn--accent:hover .szi-float-ico {
    background: linear-gradient(135deg, #5490f5, #3f7df2);
    box-shadow: 0 6px 20px rgba(63, 125, 242, .55);
}
@media (max-width: 640px) {
    /* 移动端：侧边浮动条改为底部通栏横排 */
    .szi-float-bar {
        left: 12px; right: 12px; bottom: calc(10px + env(safe-area-inset-bottom));
        flex-direction: row; gap: 4px;
        border-radius: 18px;
        box-shadow: 0 12px 36px rgba(0, 0, 0, .38), inset 0 1px 0 rgba(255, 255, 255, .04);
    }
    .szi-float-btn {
        flex: 1; flex-direction: row; gap: 8px;
        width: auto; padding: 9px 0;
        border-radius: 12px; font-size: 13px;
    }
    .szi-float-ico { width: 30px; height: 30px; }
    .szi-float-ico svg { width: 16px; height: 16px; }
}

/* ---------- 弹窗基础（遮罩 + 卡片） ---------- */
.szi-modal-overlay {
    display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(5, 7, 12, .68); z-index: 2000;
    align-items: center; justify-content: center;
    backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.szi-modal-overlay.active { display: flex; }
.szi-modal {
    background: #0d1322; border-radius: 16px; width: 92%; max-width: 520px;
    max-height: 90vh; overflow-y: auto;
    border: 1px solid rgba(255, 255, 255, .1);
    box-shadow: 0 24px 70px rgba(5, 10, 25, .6), 0 0 0 1px rgba(63, 125, 242, .12);
}
.szi-modal-head {
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 24px; border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.szi-modal-head h3 { font-size: 16px; font-weight: 700; color: #fff; }
.szi-modal-close {
    width: 34px; height: 34px; display: flex; align-items: center; justify-content: center;
    border-radius: 8px; cursor: pointer; color: rgba(255, 255, 255, .7);
    background: none; border: none; font-size: 20px; line-height: 1;
    transition: background .2s, color .2s;
}
.szi-modal-close:hover { background: rgba(255, 255, 255, .12); color: #fff; }
.szi-modal-body { padding: 20px 24px; }

/* ---------- AI 报价弹窗（深色科技感） ---------- */
.szi-modal-quote {
    display: flex; flex-direction: column;
    overflow: hidden;
}
.szi-modal-quote .szi-modal-head { flex-shrink: 0; }
.szi-modal-quote .szi-modal-body {
    flex: 1 1 auto; min-height: 0;
    overflow-y: auto; -webkit-overflow-scrolling: touch;
    padding-bottom: max(20px, calc(20px + env(safe-area-inset-bottom)));
}
@media (max-width: 640px) {
    /* 移动端矮屏：提升弹窗可用高度 + 压缩纵向间距，尽量一屏显示 */
    .szi-modal { max-height: 96vh; }
    .szi-modal-quote .szi-modal-head { padding: 10px 16px; }
    .szi-modal-quote .szi-modal-body {
        padding: 12px 16px;
        padding-bottom: calc(14px + env(safe-area-inset-bottom));
    }
    .szi-modal-quote .szi-modal-head h3 { font-size: 15px; }
    .szi-modal-quote .szi-modal-head small { font-size: 11px; }
    .szi-modal-quote-icon { width: 30px; height: 30px; }
    .szi-form-group { margin-bottom: 9px; }
    .szi-form-group label { font-size: 12px; margin-bottom: 4px; }
    .szi-form-group select,
    .szi-form-group input[type="number"],
    .szi-form-group input[type="tel"] {
        padding: 8px 12px; font-size: 13px; border-radius: 8px;
    }
    .szi-quote-params-grid { gap: 0 10px; }
    .szi-quote-params-grid .szi-form-group { margin-bottom: 9px; }
    .szi-number-input-wrap .szi-number-unit { font-size: 12px; top: 50%; }
    .szi-number-input-wrap input[type="number"] { padding-right: 46px; }
    .szi-form-group .szi-check-option { padding: 5px 10px; font-size: 11px; }
    .szi-quote-tip { margin-top: 8px; font-size: 11px; }
    .szi-quote-submit { padding: 11px !important; font-size: 14px !important; }
}
.szi-modal-quote .szi-modal-head {
    background: linear-gradient(135deg, #0A2D6E 0%, #14469B 50%, #1A5CB8 100%);
    border-bottom: none; position: relative; overflow: hidden;
}
.szi-modal-quote .szi-modal-head::before {
    content: ''; position: absolute; inset: 0; pointer-events: none;
    background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
                     linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
    background-size: 22px 22px;
}
.szi-modal-quote .szi-modal-head::after {
    content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, transparent, #3f7df2, transparent);
}
.szi-modal-quote-title { display: flex; align-items: center; gap: 12px; position: relative; z-index: 1; }
.szi-modal-quote-icon {
    width: 40px; height: 40px; border-radius: 50%; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #3f7df2, #1A5CB8);
    box-shadow: 0 0 18px rgba(63, 125, 242, .5); color: #fff;
}
.szi-modal-quote .szi-modal-head h3 { color: #fff; font-size: 16px; margin: 0; line-height: 1.2; }
.szi-modal-quote .szi-modal-head small { color: rgba(255, 255, 255, .72); font-size: 12px; }
.szi-modal-quote .szi-modal-close { color: rgba(255, 255, 255, .85); position: relative; z-index: 1; }
.szi-modal-quote .szi-modal-close:hover { background: rgba(255, 255, 255, .18); color: #fff; }
/* 报价弹窗整体压扁（PC/移动通用）：压缩头部与内容间距，尽量一屏显示 */
.szi-modal-quote .szi-modal-head { padding: 14px 20px; }
.szi-modal-quote .szi-modal-body { padding: 14px 20px; }

/* ---------- 报价参数表单（静态类，动态插入也有样式） ---------- */
.szi-form-group { margin-bottom: 10px; }
.szi-form-group label { display: block; font-size: 12px; font-weight: 600; margin-bottom: 4px; color: rgba(255, 255, 255, .72); }
.szi-form-group select,
.szi-form-group input[type="number"],
.szi-form-group input[type="tel"] {
    width: 100%; padding: 9px 12px; border: 1px solid rgba(255, 255, 255, .14);
    border-radius: 10px; font-size: 13px; font-family: inherit;
    background: rgba(255, 255, 255, .05); color: #fff;
    transition: border-color .2s, box-shadow .2s;
}
.szi-form-group select { appearance: auto; }
.szi-form-group select option { background: #0d1322; color: #fff; }
.szi-form-group select:focus,
.szi-form-group input:focus {
    outline: none; border-color: #3f7df2; box-shadow: 0 0 0 3px rgba(63, 125, 242, .18);
}
.szi-form-error { display: block; font-size: 12px; color: #ff6b6b; margin-top: 5px; }

.szi-quote-params-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px;
}
.szi-quote-params-grid .szi-form-group { margin-bottom: 9px; }
.szi-quote-params-grid .szi-form-group.full-width { grid-column: 1 / -1; }
@media (max-width: 360px) {
    .szi-quote-params-grid { grid-template-columns: 1fr; }
}

/* 数量输入（含单位后缀）：单位做成输入框内的纯文本，不再叠加边框 */
.szi-number-input-wrap { position: relative; }
.szi-number-input-wrap input[type="number"] { box-sizing: border-box; padding-right: 56px; }
.szi-number-input-wrap .szi-number-unit {
    position: absolute; right: 14px; top: 50%; transform: translateY(-50%);
    pointer-events: none; white-space: nowrap;
    color: rgba(255,255,255,.5); font-size: 13px; line-height: 1;
    border: none; background: none; padding: 0;
}

/* 附加服务勾选（用 .szi-form-group 前缀覆盖 .szi-form-group label 的 display:block，恢复 flex 居中并保证间距） */
.szi-form-group .szi-check-option {
    display: inline-flex; align-items: center;
    padding: 6px 12px; font-size: 12px; line-height: 1.3; cursor: pointer;
    font-weight: 400; margin-bottom: 0; color: rgba(255, 255, 255, .8);
    border: 1px solid rgba(255, 255, 255, .14); border-radius: 999px;
    background: rgba(255, 255, 255, .04);
    transition: border-color .2s, background .2s;
}
.szi-form-group .szi-check-option:hover { border-color: rgba(63, 125, 242, .6); }
.szi-form-group .szi-check-option input {
    appearance: none; -webkit-appearance: none; -moz-appearance: none;
    margin: 0 8px 0 0; flex: 0 0 auto; box-sizing: border-box; position: relative;
    width: 15px; height: 15px; border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, .5);
    background: rgba(255, 255, 255, .06);
    cursor: pointer; vertical-align: middle;
}
.szi-form-group .szi-check-option input:checked {
    background: #3f7df2; border-color: #3f7df2;
}
.szi-form-group .szi-check-option input:checked::after {
    content: ''; position: absolute; left: 4px; top: 1px;
    width: 5px; height: 9px;
    border: solid #fff; border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* 报价提示 */
.szi-quote-tip {
    font-size: 11px; color: rgba(255, 255, 255, .45);
    margin-top: 8px; line-height: 1.5; text-align: center;
}

/* 主按钮 */
.szi-quote-submit {
    width: 100%;
    background: linear-gradient(135deg, #3f7df2 0%, #1A5CB8 100%) !important;
    box-shadow: 0 6px 22px rgba(63, 125, 242, .4) !important;
    padding: 12px !important; font-size: 14px !important;
    color: #FFFFFF !important;
    position: relative; overflow: hidden; border: none !important;
}
.szi-quote-submit::before {
    content: ''; position: absolute; top: 0; left: -60%; width: 60%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.28), transparent);
    animation: szi-quote-btn-shine 3.2s ease-in-out infinite;
    pointer-events: none;
}
@keyframes szi-quote-btn-shine { 0% { left: -60%; } 55% { left: 100%; } 100% { left: 100%; } }

/* ============================================================
   底部 CTA + 页脚（深黑 · 静态样式，不依赖 Tailwind）
   ============================================================ */

/* ---------- 底部 CTA（留白背景 · 深黑卡片 · 与页脚区分） ---------- */
.szi-cta { background: #ffffff; padding: 88px 0 100px; position: relative; overflow: hidden; }
.szi-cta::before {
    content: ''; position: absolute; left: 50%; top: -40%; transform: translateX(-50%);
    width: 900px; height: 600px; pointer-events: none;
    background: radial-gradient(closest-side, rgba(63, 125, 242, .10), transparent 72%);
    filter: blur(30px);
}
.szi-cta-inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }
.szi-cta-panel {
    position: relative; display: flex; align-items: center; justify-content: space-between;
    gap: 32px; padding: 48px 52px; border-radius: 24px;
    background: linear-gradient(180deg, #141b2e, #0a0d16);
    border: 1px solid rgba(255, 255, 255, .12);
    box-shadow: 0 30px 80px rgba(10, 14, 24, .30);
    overflow: hidden;
}
.szi-cta-panel::before {
    content: ''; position: absolute; inset: 0; pointer-events: none;
    background-image: linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
    background-size: 26px 26px;
    mask-image: radial-gradient(circle at 30% 50%, #000 0%, transparent 78%);
    -webkit-mask-image: radial-gradient(circle at 30% 50%, #000 0%, transparent 78%);
}
.szi-cta-panel::after {
    content: ''; position: absolute; right: -70px; bottom: -70px; width: 240px; height: 240px;
    border-radius: 50%; pointer-events: none;
    background: radial-gradient(circle, rgba(63, 125, 242, .28), transparent 70%);
    filter: blur(10px);
}
.szi-cta-main { position: relative; z-index: 1; flex: 1; min-width: 0; }
.szi-cta-badge {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 5px 12px; border-radius: 999px;
    background: rgba(63, 125, 242, .12); border: 1px solid rgba(63, 125, 242, .3);
    color: #9db9f5; font-size: 12px; letter-spacing: .3px; margin-bottom: 18px;
}
.szi-cta-badge .szi-cta-ico { width: 14px; height: 14px; }
.szi-cta-title { font-size: clamp(28px, 3.2vw, 42px); font-weight: 600; letter-spacing: -.5px; line-height: 1.12; color: #FFFFFF; }
.szi-cta-title em { font-style: normal; color: #5b8ff7; }
.szi-cta-sub { margin-top: 14px; font-size: 15px; line-height: 1.7; color: rgba(255, 255, 255, .6); }
.szi-cta-actions { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 12px; flex-shrink: 0; }
.szi-cta-btn-white {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    height: 52px; padding: 0 24px; border-radius: 12px;
    background: #FFFFFF; color: #111827; font-size: 15px; font-weight: 500;
    border: 1px solid #FFFFFF; transition: background .2s, transform .2s, box-shadow .2s;
    box-shadow: 0 10px 26px rgba(0, 0, 0, .35);
}
.szi-cta-btn-white:hover { background: #F3F4F6; transform: translateY(-2px); box-shadow: 0 14px 32px rgba(0, 0, 0, .4); }
.szi-cta-btn-blue {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    height: 52px; padding: 0 24px; border-radius: 12px;
    background: linear-gradient(135deg, #3f7df2, #2b5fe0); color: #FFFFFF !important; font-size: 15px; font-weight: 500;
    border: 1px solid #3f7df2; transition: background .2s, transform .2s, box-shadow .2s;
    box-shadow: 0 10px 26px rgba(63, 125, 242, .4);
}
.szi-cta-btn-blue:hover { background: linear-gradient(135deg, #5490f5, #3f7df2); transform: translateY(-2px); box-shadow: 0 14px 34px rgba(63, 125, 242, .5); }
.szi-cta-ico { width: 16px; height: 16px; flex-shrink: 0; }
.szi-cta-btn-white .szi-cta-ico { color: #3f7df2; }
@media (max-width: 900px) {
    .szi-cta { padding: 64px 0 72px; }
    .szi-cta-panel { flex-direction: column; align-items: flex-start; padding: 36px 28px; }
    .szi-cta-actions { width: 100%; flex-wrap: wrap; }
    .szi-cta-btn-white, .szi-cta-btn-blue { flex: 1; min-width: 160px; }
}

/* ---------- 页脚 ---------- */
.szi-footer { background: #05070C; }
.szi-footer-inner { max-width: 1200px; margin: 0 auto; padding: 64px 24px; }
.szi-footer-grid { display: grid; grid-template-columns: 1fr; gap: 40px; }
@media (min-width: 640px) { .szi-footer-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .szi-footer-grid { grid-template-columns: 1.3fr 1fr 1fr 1fr; } }
.szi-footer-logo { height: 36px; width: auto; }
.szi-footer-desc { margin-top: 20px; font-size: 14px; line-height: 1.7; color: rgba(255, 255, 255, .58); max-width: 260px; }
.szi-footer-contact { margin-top: 22px; }
.szi-footer-contact-row { display: flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(255, 255, 255, .78); margin-bottom: 10px; }
.szi-footer-contact-row a { color: rgba(255, 255, 255, .78); }
.szi-footer-contact-row a:hover { color: #FFFFFF; }
.szi-footer-ico { width: 16px; height: 16px; color: #3f7df2; flex-shrink: 0; }
.szi-footer-title {
    font-size: 13px; font-weight: 600; letter-spacing: .12em;
    text-transform: uppercase; color: #FFFFFF; margin-bottom: 20px;
}
.szi-footer-links li { margin-bottom: 12px; }
.szi-footer-links a { font-size: 14px; color: rgba(255, 255, 255, .6); transition: color .2s; }
.szi-footer-links a:hover { color: #FFFFFF; }
.szi-footer-bottom { border-top: 1px solid rgba(255, 255, 255, .08); }
.szi-footer-bottom-inner {
    max-width: 1200px; margin: 0 auto; padding: 22px 24px;
    display: flex; flex-direction: column; align-items: center; justify-content: space-between; gap: 10px;
    font-size: 13px; color: rgba(255, 255, 255, .45);
}
.szi-footer-bottom a { color: rgba(255, 255, 255, .45); }
.szi-footer-bottom a:hover { color: rgba(255, 255, 255, .75); }
@media (min-width: 768px) {
    .szi-footer-bottom-inner { flex-direction: row; }
}