/**
 * SNNP V8 — v8-compatibility.css
 * ═══════════════════════════════════════════════════════════════════════════
 * P1+P3+P4 完整版：前台 CSS 兼容桥接层
 *
 * 规则：
 *   1. 所有规则以 body.v8-engine-active 作为顶级前缀
 *   2. 优先引用 v8-main.css CSS变量，不硬编码颜色
 *   3. 不修改 v8-main.css 任何代码
 *   4. 克制使用 !important，仅在覆盖内联样式时使用
 *
 * 模块：
 *   §01  基础 Reset
 *   §02  按钮系统 (.snnp-btn 系)
 *   §03  Header 状态 (.snnp-header 系)
 *   §04  全局触发器 (.snnp-trigger-global-form)
 *   §05  Plan B Mobile Bar (.snnp-mobile-bar 系)
 *   §06  Plan A Popup (.snnp-plana-* 系)
 *   §07  PC WA Expert Card (.snnp-wa-card 系)
 *   §08  Social Proof Toast (.snnp-notif-toast 系)
 *   §09  Trust Wall (.snnp-trust-* 系)
 *   §10  ROI Calculator (.snnp-roi-* 系)
 *   §11  Sidebar WA Widget (.snnp-sidebar-wa 系)
 *   §12  Footer DOM 补全
 *   §13  Z-Index 层级规范（Plan B < Chatbox < Modal < Plan A）
 *   §14  640px 断点补全
 *   §15  CSS 变量回退
 * ═══════════════════════════════════════════════════════════════════════════
 */

/* ═══════════════════════════════════════════════════════════════════════════
   §01  基础 Reset
═══════════════════════════════════════════════════════════════════════════ */

body.v8-engine-active {
  overflow-x: hidden;
}

/* ═══════════════════════════════════════════════════════════════════════════
   §02  按钮系统桥接
═══════════════════════════════════════════════════════════════════════════ */

body.v8-engine-active .snnp-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 24px;
  font-weight: 600;
  font-size: 14px;
  border-radius: var(--v8-radius, 6px);
  box-shadow: 0 1px 4px rgba(0,0,0,.10);
  transition: transform .12s, box-shadow .12s, background .2s;
  cursor: pointer;
  text-decoration: none;
  border: none;
  line-height: 1.4;
  vertical-align: middle;
  font-family: 'DM Sans', -apple-system, sans-serif;
}

body.v8-engine-active .snnp-btn:active {
  transform: translateY(2px);
  box-shadow: 0 1px 2px rgba(0,0,0,.10);
}

body.v8-engine-active .snnp-btn-cta {
  background: var(--v8-cta, #4a6b53);
  color: #fff;
}

body.v8-engine-active .snnp-btn-cta:hover {
  background: #5a7a60;
  color: #fff;
}

body.v8-engine-active .snnp-btn-ghost {
  background: transparent;
  border: 1.5px solid var(--v8-primary, #7a8fa6);
  color: var(--v8-primary, #7a8fa6);
  box-shadow: none;
}

body.v8-engine-active .snnp-btn-ghost:hover {
  background: var(--v8-primary, #7a8fa6);
  color: #fff;
}

body.v8-engine-active .snnp-wa-inline-btn {
  background: var(--v8-wa-brand, #25d366);
  color: #fff;
}

body.v8-engine-active .snnp-wa-inline-btn:hover {
  filter: brightness(.88);
}

/* ═══════════════════════════════════════════════════════════════════════════
   §03  Header 状态
═══════════════════════════════════════════════════════════════════════════ */

body.v8-engine-active .snnp-header {
  transition: transform .3s ease, backdrop-filter .3s, background .3s;
}

body.v8-engine-active .snnp-header-hidden {
  transform: translateY(-100%);
}

/* ═══════════════════════════════════════════════════════════════════════════
   §04  全局触发器桥接
   注意：JS监听由 v8-assets.php wp_add_inline_script 注入
   CSS此处仅确保视觉表现一致
═══════════════════════════════════════════════════════════════════════════ */

body.v8-engine-active .snnp-trigger-global-form,
body.v8-engine-active .snnp-trigger-inquiry {
  cursor: pointer;
}

/* ═══════════════════════════════════════════════════════════════════════════
   §05  Plan B Mobile Bar 旧类名桥接
   注意：V8重构版 Plan B 输出 .v8-planb-bar DOM（v8-plan-b.php）
   此段仅兜底旧 .snnp-mobile-bar 类名（内容区嵌入的旧HTML）
═══════════════════════════════════════════════════════════════════════════ */

body.v8-engine-active .snnp-mobile-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 80px;
  z-index: var(--v8-z-planb, 1400);
  background: #fff;
  border-top: 1px solid rgba(0,0,0,.05);
  box-shadow: 0 -2px 10px rgba(0,0,0,.05);
  transform: translateY(100%);
  transition: transform .35s cubic-bezier(.4,0,.2,1);
  flex-direction: row;
  align-items: center;
  padding: 0 16px;
  gap: 12px;
  font-family: 'DM Sans', -apple-system, sans-serif;
}

@media (max-width: 767px) {
  body.v8-engine-active .snnp-mobile-bar {
    display: flex;
  }
}

@media (max-width: 640px) {
  body.v8-engine-active .snnp-mobile-bar {
    height: 72px;
    padding: 0 12px;
    gap: 8px;
  }
}

body.v8-engine-active .snnp-mobile-bar-visible {
  transform: translateY(0);
}

body.v8-engine-active .snnp-mobile-bar-social {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

body.v8-engine-active .snnp-mbar-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  color: #fff;
  text-decoration: none;
  transition: transform .15s, opacity .15s;
  flex-shrink: 0;
}

body.v8-engine-active .snnp-mbar-icon:first-child {
  background: var(--v8-wa-brand, #25d366);
}

body.v8-engine-active .snnp-mbar-icon:last-child:not(:first-child) {
  background: var(--v8-primary, #7a8fa6);
}

body.v8-engine-active .snnp-mbar-icon:hover {
  transform: scale(1.08);
  opacity: .9;
}

body.v8-engine-active .snnp-mbar-quote-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  background: var(--v8-cta, #4a6b53);
  color: #fff;
  border-radius: var(--v8-radius, 6px);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: background .15s;
  border: none;
  cursor: pointer;
  font-family: 'DM Sans', -apple-system, sans-serif;
}

body.v8-engine-active .snnp-mbar-quote-btn:hover {
  background: #5a7a60;
  color: #fff;
}

/* ═══════════════════════════════════════════════════════════════════════════
   §06  Plan A Popup 旧类名桥接
═══════════════════════════════════════════════════════════════════════════ */

body.v8-engine-active .snnp-plana-modal {
  background: #fff;
  border-radius: 16px;
  max-width: 820px;
  width: 100%;
  max-height: 90vh;
  overflow: auto;
  position: relative;
  box-shadow: 0 20px 60px rgba(0,0,0,.25);
  animation: snnp-compat-modal-in .25s ease;
}

@keyframes snnp-compat-modal-in {
  from { opacity: 0; transform: scale(.94); }
  to   { opacity: 1; transform: scale(1); }
}

body.v8-engine-active .snnp-plana-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 380px;
}

@media (max-width: 640px) {
  body.v8-engine-active .snnp-plana-inner {
    grid-template-columns: 1fr;
  }
}

body.v8-engine-active .snnp-plana-hero {
  background: linear-gradient(135deg, var(--v8-primary, #7a8fa6), var(--v8-accent, #9b8fa0));
  border-radius: 16px 0 0 16px;
  min-height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (max-width: 640px) {
  body.v8-engine-active .snnp-plana-hero {
    border-radius: 16px 16px 0 0;
    min-height: 140px;
  }
}

body.v8-engine-active .snnp-plana-hero-icon {
  text-align: center;
  color: #fff;
  opacity: .9;
}

body.v8-engine-active .snnp-plana-hero-icon span {
  font-size: 48px;
  display: block;
  margin-bottom: 8px;
}

body.v8-engine-active .snnp-plana-hero-icon p {
  font-size: 15px;
  font-weight: 600;
  margin: 0;
}

body.v8-engine-active .snnp-plana-form-wrap {
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

@media (max-width: 640px) {
  body.v8-engine-active .snnp-plana-form-wrap {
    padding: 20px 16px;
  }
}

body.v8-engine-active .snnp-plana-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--v8-dark, #1c2433);
  margin: 0 0 8px;
  line-height: 1.25;
}

body.v8-engine-active .snnp-plana-subtitle {
  font-size: 14px;
  color: #6b7585;
  margin: 0 0 20px;
  line-height: 1.5;
}

body.v8-engine-active .snnp-plana-field {
  margin-bottom: 14px;
}

body.v8-engine-active .snnp-plana-field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--v8-dark, #1c2433);
  margin-bottom: 5px;
}

body.v8-engine-active .snnp-plana-field input,
body.v8-engine-active .snnp-plana-field textarea {
  width: 100%;
  border: 1.5px solid #d0d8e4;
  border-radius: 7px;
  padding: 9px 12px;
  font-size: 14px;
  color: var(--v8-dark, #1c2433);
  transition: border-color .15s;
  box-sizing: border-box;
}

body.v8-engine-active .snnp-plana-field input:focus,
body.v8-engine-active .snnp-plana-field textarea:focus {
  outline: none;
  border-color: var(--v8-primary, #7a8fa6);
}

body.v8-engine-active .snnp-plana-cta {
  width: 100%;
  justify-content: center;
  margin-top: 4px;
}

body.v8-engine-active .snnp-plana-privacy {
  font-size: 11px;
  color: #9aa3b4;
  margin: 8px 0 0;
  text-align: center;
}

body.v8-engine-active .snnp-plana-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 24px;
  text-align: center;
}

body.v8-engine-active .snnp-plana-success span {
  font-size: 36px;
}

body.v8-engine-active .snnp-plana-success p {
  font-size: 15px;
  color: var(--v8-dark, #1c2433);
  font-weight: 500;
  margin: 0;
}

/* ═══════════════════════════════════════════════════════════════════════════
   §07  PC WA Expert Card 旧类名桥接
═══════════════════════════════════════════════════════════════════════════ */

body.v8-engine-active .snnp-wa-card {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: var(--v8-z-chatbox, 1300);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

@media (max-width: 1023px) {
  body.v8-engine-active .snnp-wa-card {
    bottom: 100px;
    right: 16px;
  }
}

@media (max-width: 640px) {
  body.v8-engine-active .snnp-wa-card {
    display: none;
  }
}

body.v8-engine-active .snnp-wa-card-toggle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--v8-wa-brand, #25d366);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 18px rgba(37,211,102,.40);
  transition: transform .2s, box-shadow .2s;
  padding: 0;
}

body.v8-engine-active .snnp-wa-card-toggle:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 26px rgba(37,211,102,.52);
}

body.v8-engine-active .snnp-wa-card-panel {
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 8px 36px rgba(0,0,0,.16);
  padding: 18px;
  width: 264px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

body.v8-engine-active .snnp-wa-card-avatar {
  display: flex;
  align-items: center;
  gap: 10px;
  position: relative;
}

body.v8-engine-active .snnp-avatar-circle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--v8-primary, #7a8fa6), var(--v8-wa-brand, #25d366));
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

body.v8-engine-active .snnp-online-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #22c55e;
  border: 2px solid #fff;
  position: absolute;
  bottom: 0;
  left: 32px;
}

body.v8-engine-active .snnp-wa-card-info strong {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: #111;
}

body.v8-engine-active .snnp-online-label {
  font-size: 12px;
  color: #22c55e;
  font-weight: 600;
}

body.v8-engine-active .snnp-wa-card-info p {
  margin: 5px 0 0;
  font-size: 13px;
  color: #666;
  line-height: 1.45;
}

body.v8-engine-active .snnp-wa-card-cta {
  display: block;
  text-align: center;
  background: var(--v8-wa-brand, #25d366);
  color: #fff;
  border-radius: 8px;
  padding: 10px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: background .15s;
}

body.v8-engine-active .snnp-wa-card-cta:hover {
  filter: brightness(.88);
}

/* ═══════════════════════════════════════════════════════════════════════════
   §08  Social Proof Toast 旧类名桥接
═══════════════════════════════════════════════════════════════════════════ */

body.v8-engine-active .snnp-notif-toast {
  position: fixed;
  bottom: 92px;
  left: 16px;
  z-index: calc(var(--v8-z-planb, 1400) - 100);
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 6px 28px rgba(0,0,0,.14);
  padding: 12px 18px;
  font-size: 13px;
  font-weight: 500;
  color: var(--v8-text, #2c3240);
  max-width: min(300px, calc(100vw - 32px));
  border-left: 4px solid var(--v8-wa-brand, #25d366);
  opacity: 0;
  transform: translateX(-16px);
  transition: opacity .35s, transform .35s;
  pointer-events: none;
}

@media (max-width: 640px) {
  body.v8-engine-active .snnp-notif-toast {
    bottom: 72px;
    left: 8px;
    max-width: calc(100vw - 16px);
    font-size: 12px;
    padding: 10px 14px;
  }
}

body.v8-engine-active .snnp-notif-visible {
  opacity: 1;
  transform: translateX(0);
}

/* ═══════════════════════════════════════════════════════════════════════════
   §09  Trust Wall 旧类名桥接
═══════════════════════════════════════════════════════════════════════════ */

body.v8-engine-active .snnp-trust-wall {
  overflow: hidden;
  padding: 20px 0;
  -webkit-mask: linear-gradient(90deg, transparent, #fff 10%, #fff 90%, transparent);
  mask: linear-gradient(90deg, transparent, #fff 10%, #fff 90%, transparent);
  max-width: 100%;
}

body.v8-engine-active .snnp-trust-track {
  display: flex;
  align-items: center;
  gap: 40px;
  width: max-content;
  animation: snnp-compat-ticker 30s linear infinite;
}

body.v8-engine-active .snnp-trust-track:hover {
  animation-play-state: paused;
}

@keyframes snnp-compat-ticker {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

body.v8-engine-active .snnp-trust-logo img {
  height: 40px;
  width: auto;
  max-width: 120px;
  object-fit: contain;
  filter: grayscale(100%) opacity(.5);
  transition: filter .3s;
}

body.v8-engine-active .snnp-trust-logo:hover img {
  filter: grayscale(0%) opacity(1);
}

/* ═══════════════════════════════════════════════════════════════════════════
   §10  ROI Calculator 旧类名桥接
═══════════════════════════════════════════════════════════════════════════ */

body.v8-engine-active .snnp-roi-calc {
  background: linear-gradient(135deg, #f4f6f9, #eef2f7);
  border: 1px solid #dde3ec;
  border-radius: 16px;
  padding: 24px;
  max-width: 460px;
}

@media (max-width: 640px) {
  body.v8-engine-active .snnp-roi-calc {
    padding: 16px;
    border-radius: 12px;
  }
}

body.v8-engine-active .snnp-roi-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

body.v8-engine-active .snnp-roi-icon {
  font-size: 26px;
}

body.v8-engine-active .snnp-roi-header h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--v8-dark, #1c2433);
}

body.v8-engine-active .snnp-roi-fields {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

body.v8-engine-active .snnp-roi-fields label {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 13px;
  font-weight: 600;
  color: var(--v8-text, #2c3240);
}

body.v8-engine-active .snnp-roi-fields input {
  border: 1px solid #d0d8e4;
  border-radius: 7px;
  padding: 8px 12px;
  font-size: 14px;
  background: #fff;
  color: var(--v8-text, #2c3240);
  max-width: 100%;
  box-sizing: border-box;
}

body.v8-engine-active .snnp-roi-fields input:focus {
  outline: none;
  border-color: var(--v8-primary, #7a8fa6);
}

body.v8-engine-active .snnp-roi-result {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 18px;
  background: var(--v8-primary, #7a8fa6);
  color: #fff;
  border-radius: 10px;
  padding: 14px 18px;
}

body.v8-engine-active .snnp-roi-result span {
  font-size: 14px;
  font-weight: 600;
}

body.v8-engine-active .snnp-roi-result strong {
  font-size: 22px;
  font-weight: 800;
}

/* ═══════════════════════════════════════════════════════════════════════════
   §11  Sidebar WA Widget 旧类名桥接
═══════════════════════════════════════════════════════════════════════════ */

body.v8-engine-active .snnp-sidebar-wa {
  background: linear-gradient(135deg, #f0fdf4, #dcfce7);
  border: 1px solid #bbf7d0;
  border-radius: var(--v8-radius, 6px);
  padding: 16px;
}

body.v8-engine-active .snnp-sidebar-wa-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  position: relative;
}

body.v8-engine-active .snnp-sidebar-wa-text {
  font-size: 13px;
  color: #1c3026;
  line-height: 1.5;
  margin: 0 0 14px;
}

body.v8-engine-active .snnp-sidebar-wa-btn {
  width: 100%;
  justify-content: center;
}

/* ═══════════════════════════════════════════════════════════════════════════
   §12  Footer DOM 补全
═══════════════════════════════════════════════════════════════════════════ */

body.v8-engine-active .v8-footer-logo {
  display: inline-flex;
  align-items: center;
  line-height: 1;
  text-decoration: none;
}

body.v8-engine-active .v8-footer-logo img {
  max-height: 48px;
  width: auto;
  object-fit: contain;
}

body.v8-engine-active .v8-footer-logo-text {
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -.01em;
}

/* footer CTA 按钮（双类触发器）视觉确保 */
body.v8-engine-active .v8-footer-cta-btn,
body.v8-engine-active .v8-footer-quote-btn {
  cursor: pointer;
}

/* footer plan-b 避让（由 v8-plan-b.php 动态 body class 控制，此处为静态兜底）*/
body.v8-engine-active.v8-has-planb .v8-footer,
body.v8-engine-active.v8-has-planb footer {
  padding-bottom: 100px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   §13  Z-Index 层级规范（严格对齐 v8-main.css 变量值）
   层级顺序（低 → 高）：
     Topbar   1000
     Header   1100
     Megamenu 1200
     Chatbox  1300  ← Plan B 展开时降至 1290
     Plan B   1400
     Modal    1500
     Plan A   1600  ← overlay 1600, close button 1700
═══════════════════════════════════════════════════════════════════════════ */

/* Plan B 不遮挡 Modal / Plan A */
body.v8-engine-active .v8-planb-bar {
  z-index: var(--v8-z-planb, 1400);
}

/* Chatbox FAB 层级（低于 Plan B，防止浮现在 Plan B 上方）*/
body.v8-engine-active .v8-chatbox {
  z-index: var(--v8-z-chatbox, 1300);
}

/* 弹窗遮罩正常覆盖一切可见组件 */
body.v8-engine-active .v8-modal-overlay,
body.v8-engine-active .v8-plana-overlay {
  z-index: var(--v8-z-modal, 1500);
}

body.v8-engine-active .v8-plana-root {
  z-index: var(--v8-z-plana, 1600);
}

/* Plan B 展开时 Chatbox 降级（由 v8-plan-b.php 添加 body class 触发）*/
body.v8-engine-active.v8-cx-expanded .v8-planb-bar {
  z-index: calc(var(--v8-z-chatbox, 1300) - 10);
}

/* snnp-* 旧弹窗兼容层级 */
body.v8-engine-active .snnp-plana-modal {
  position: relative;
  z-index: 1;
}

/* ═══════════════════════════════════════════════════════════════════════════
   §14  640px 断点完整补全
   原版 framework-frontend.css 含 767px 断点（Plan B mobile bar）
   V8 规范双断点：1024px + 640px
   此段补全 640px 以下的关键覆盖
═══════════════════════════════════════════════════════════════════════════ */

@media (max-width: 640px) {

  /* 按钮字号下调 */
  body.v8-engine-active .snnp-btn {
    font-size: 13px;
    padding: 10px 18px;
  }

  /* Plan A 布局单列 */
  body.v8-engine-active .snnp-plana-inner {
    grid-template-columns: 1fr;
  }

  body.v8-engine-active .snnp-plana-hero {
    border-radius: 16px 16px 0 0;
    min-height: 120px;
  }

  /* ROI 计算器全宽 */
  body.v8-engine-active .snnp-roi-calc {
    max-width: 100%;
  }

  /* WA Card 在小屏隐藏（与原版一致：1024px以下不显示）*/
  body.v8-engine-active .snnp-wa-card {
    display: none;
  }

  /* Toast 位置下移（Plan B存在时）*/
  body.v8-has-planb .snnp-notif-toast,
  body.v8-has-planb .v8-notif-toast {
    bottom: 72px;
  }

}

/* ═══════════════════════════════════════════════════════════════════════════
   §15  CSS 变量回退
   防止 v8-main.css 未正常加载时的降级
═══════════════════════════════════════════════════════════════════════════ */

body.v8-engine-active {
  --v8-primary:   var(--v8-primary,   #7a8fa6);
  --v8-accent:    var(--v8-accent,    #9b8fa0);
  --v8-cta:       var(--v8-cta,       #4a6b53);
  --v8-dark:      var(--v8-dark,      #1c2433);
  --v8-text:      var(--v8-text,      #2c3240);
  --v8-bg:        var(--v8-bg,        #f8f7f5);
  --v8-radius:    var(--v8-radius,    6px);
  --v8-z-planb:   var(--v8-z-planb,   1400);
  --v8-z-chatbox: var(--v8-z-chatbox, 1300);
  --v8-z-modal:   var(--v8-z-modal,   1500);
  --v8-z-plana:   var(--v8-z-plana,   1600);
}