/* ==========================================================================
   山东省万兴食品有限公司 · AI数智引导门户 (Laiwu Manhing Vegetables Fruits Corporation)
   Architecture: Based on china-yintai.com/zh-CN Homepage Full-Screen Preview
   Brand System: Laiwu Manhing Vegetables Fruits Corporation (www.manhinggroup.com) #e60012
   ========================================================================== */

:root {
  /* Brand Colors - Manhing Red & Tech Accents */
  --mh-red: #e60012;
  --mh-red-hover: #ff1f30;
  --mh-red-dark: #b8000e;
  --mh-red-soft: rgba(230, 0, 18, 0.08);
  --mh-red-glow: rgba(230, 0, 18, 0.35);
  --mh-gold: #d49b35;
  --mh-green: #10b981;
  --mh-blue: #1677ff;

  /* Conventional Bright Corporate Palette (Clean White + Soft Gray + Manhing Red) */
  --bg-primary: #ffffff;
  --bg-secondary: #f6f8fa;
  --bg-tertiary: #eef1f6;
  --bg-card: #ffffff;
  --bg-card-hover: #fafbfc;
  --bg-glass: rgba(255, 255, 255, 0.96);
  --bg-drop: rgba(255, 255, 255, 0.98);
  --text-primary: #1a1d24;
  --text-secondary: #4e5666;
  --text-muted: #788292;
  --border-color: rgba(0, 0, 0, 0.08);
  --border-strong: rgba(0, 0, 0, 0.14);
  --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 12px 32px rgba(15, 25, 45, 0.07);
  --shadow-lg: 0 20px 48px rgba(15, 25, 45, 0.10);
  --news-background: #f5f7fa;
  --footer-upper-bg: #ffffff;
  --footer-lower-bg: #f0f3f7;

  /* Yintai Motion Variables */
  --duration: 0.45s;
  --ease-out-quart: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-in-out-cubic: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base & Proportional Scaling (Exact Yintai Fluid Rem System) */
@media (min-width: 64rem) {
  html {
    font-size: clamp(12px, 0.8333vw, 16px);
  }
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  color: var(--text-primary);
  background-color: var(--bg-primary);
  font-family: "PingFang SC", "Source Han Sans SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
  overflow-x: hidden;
  transition: background-color 0.35s ease, color 0.35s ease;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, li {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
}

.font-num {
  font-family: "D-DIN-PRO", "DIN Alternate", "JetBrains Mono", "Roboto Mono", monospace, sans-serif;
  font-variant-numeric: tabular-nums;
}

.header-row {
  box-sizing: border-box;
  width: 100%;
  margin: 0 auto;
  padding: 0 3.75rem;
}

@media (max-width: 1024px) {
  .header-row {
    padding: 0 1.5rem;
  }
}

@media (max-width: 768px) {
  .header-row {
    padding: 0 1rem;
  }
}

.hover-scale {
  overflow: hidden;
}

.hover-scale .hover-scale-bg {
  transition: transform 0.85s cubic-bezier(0.22, 1, 0.36, 1);
}

.hover-scale:hover .hover-scale-bg {
  transform: scale(1.06);
}

/* ==========================================================================
   1. YINTAI SCREEN-OPEN CURTAIN ANIMATION (index-module__bI6YFq__screenOpen)
   ========================================================================== */
.screen-open {
  z-index: 10000;
  background-color: transparent;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100dvh;
  display: flex;
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: auto;
}

.screen-open.is-hidden {
  display: none;
  pointer-events: none;
}

.screen-open-content {
  z-index: 2;
  display: flex;
  flex-direction: row;
  align-items: center;
  overflow: hidden;
  position: relative;
}

.screen-open-half {
  width: 11rem;
  height: 7.5rem;
  overflow: hidden;
  position: relative;
  transition: transform 0.65s cubic-bezier(0.65, 0, 0.35, 1);
}

.screen-open-half img {
  width: 22rem;
  height: 7.5rem;
  object-fit: contain;
  display: block;
  max-width: none;
}

.screen-open-half.half-left img {
  transform: translateX(0);
}

.screen-open-half.half-right img {
  transform: translateX(-11rem);
}

.screen-open.animate-logo .screen-open-half.half-left {
  transform: translateY(-110%);
}

.screen-open.animate-logo .screen-open-half.half-right {
  transform: translateY(110%);
}

.screen-open-brand-tag {
  position: absolute;
  bottom: calc(50% - 6.2rem);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: #333;
  white-space: nowrap;
  transition: opacity 0.4s ease;
}

.screen-open.animate-logo .screen-open-brand-tag {
  opacity: 0;
}

.screen-open-bg {
  z-index: 1;
  flex-direction: column;
  width: 100%;
  height: 100dvh;
  display: flex;
  position: absolute;
  top: 0;
  left: 0;
}

.screen-open-bg-item {
  background-color: #ffffff;
  border-top: 1px solid #ffffff;
  border-bottom: 1px solid #ffffff;
  flex: 1;
  width: 100%;
  transform: translateX(0);
  transition: transform 0.65s cubic-bezier(0.65, 0, 0.35, 1);
  position: relative;
}

.screen-open-bg-item::after {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: 4px;
  height: 100%;
  background: var(--mh-red);
  opacity: 0.85;
}

.screen-open.animate-curtain .screen-open-bg-item:nth-child(1) {
  transform: translateX(101%);
  transition-delay: 0s;
}

.screen-open.animate-curtain .screen-open-bg-item:nth-child(2) {
  transform: translateX(101%);
  transition-delay: 0.15s;
}

.screen-open.animate-curtain .screen-open-bg-item:nth-child(3) {
  transform: translateX(101%);
  transition-delay: 0.3s;
}

.screen-open-skip {
  position: absolute;
  bottom: 2.2rem;
  right: 2.5rem;
  z-index: 5;
  background: rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(0, 0, 0, 0.12);
  color: #555;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  font-size: 0.8125rem;
  cursor: pointer;
  transition: all 0.2s;
}

.screen-open-skip:hover {
  background: var(--mh-red);
  color: #fff;
  border-color: var(--mh-red);
}

/* ==========================================================================
   2. YINTAI HEADER & MEGA DROPDOWN (Header-module__lnUIdW__header)
   ========================================================================== */
.yt-header {
  z-index: 2000;
  isolation: isolate;
  text-align: left;
  width: 100%;
  height: 5.5rem;
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.625rem;
  position: fixed;
  top: 0;
  left: 0;
  background: #ffffff;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: height 0.35s ease, background 0.35s ease, box-shadow 0.35s ease;
}

.yt-header::before {
  display: none;
}

.yt-header.white-mode,
.yt-header.show-drop-panel {
  background: #ffffff;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  height: 5.5rem;
}

.yt-header-inner {
  z-index: 99999;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  height: 100%;
  display: flex;
  position: relative;
}

/* Signature Yintai horizontal line animation across header bottom */
.yt-header-inner::after {
  content: "";
  box-sizing: border-box;
  transform-origin: 90% 0;
  background: rgba(230, 0, 18, 0.22);
  width: calc(100% - 7.5rem);
  height: 0.0625rem;
  margin: 0 auto;
  transition: transform 1.5s ease-in-out, opacity 0.3s;
  display: block;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  transform: scaleX(0);
}

.yt-header-inner.animate::after {
  transform: scaleX(1);
}

.yt-header.white-mode .yt-header-inner::after,
.yt-header.show-drop-panel .yt-header-inner::after {
  transform: scaleX(0);
}

/* Brand Logo Area - Official Manhing Plaque */
.yt-logo {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  cursor: pointer;
}

.yt-logo-plaque {
  height: 3.45rem;
  width: auto;
  display: block;
  border-radius: 0.5rem;
  box-shadow: 0 3px 12px rgba(230, 0, 18, 0.18);
  transition: transform 0.25s ease, box-shadow 0.25s ease, height 0.3s ease;
}

.yt-header.white-mode .yt-logo-plaque {
  height: 3.15rem;
}

.yt-logo:hover .yt-logo-plaque {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(230, 0, 18, 0.28);
}

.yt-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.yt-logo-title {
  color: var(--text-primary);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  transition: color 0.3s ease;
}

.yt-logo-ai-pill {
  background: var(--mh-red);
  color: #fff !important;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.12rem 0.45rem;
  border-radius: 0.3rem;
  letter-spacing: 0.06em;
}

.yt-logo-sub {
  color: var(--text-secondary);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  white-space: nowrap;
  transition: color 0.3s ease;
}

/* Header Right & Nav */
.yt-header-right {
  align-items: center;
  gap: 1.25rem;
  height: 100%;
  display: flex;
}

.yt-nav {
  align-items: center;
  gap: 0;
  margin: 0 0.5rem 0 0;
  padding: 0;
  display: flex;
  height: 100%;
}

.yt-nav-item {
  padding: 0 1.35rem;
  height: 100%;
  display: flex;
  align-items: center;
  position: relative;
}

.yt-nav-link {
  color: var(--text-primary);
  white-space: nowrap;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 1.05rem;
  font-weight: 600;
  transition: color 0.25s ease;
  position: relative;
  padding: 0.4rem 0;
}

.yt-nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2.5px;
  background: var(--mh-red);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.3s ease;
}

.yt-nav-link:hover::after,
.yt-nav-item.active .yt-nav-link::after {
  transform: scaleX(1);
}

.yt-nav-link:hover {
  color: var(--mh-red) !important;
}

.yt-nav-badge {
  font-size: 0.65rem;
  padding: 0.05rem 0.38rem;
  border-radius: 4px;
  background: var(--mh-red-soft);
  border: 1px solid rgba(230, 0, 18, 0.22);
  color: var(--mh-red);
  font-weight: 700;
}

/* Signature Yintai vertical crossYline */
.yt-cross-yline {
  transform-origin: bottom;
  background: rgba(0, 0, 0, 0.1);
  align-self: flex-end;
  width: 0.0625rem;
  height: 0%;
  transition: height 1s ease-in-out;
}

.yt-header-inner.animate .yt-cross-yline {
  height: 100%;
}

.yt-header.white-mode .yt-cross-yline,
.yt-header.show-drop-panel .yt-cross-yline {
  height: 0%;
}

/* Header Action Buttons */
.yt-actions {
  align-items: center;
  gap: 0.65rem;
  height: 100%;
  margin-left: 0.5rem;
  display: flex;
}

.yt-action-btn {
  color: var(--text-primary);
  cursor: pointer;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  height: 2.35rem;
  padding: 0 0.9rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.25s ease;
}

.yt-action-btn.icon-only {
  width: 2.35rem;
  padding: 0;
}

.yt-action-btn:hover {
  background: var(--mh-red);
  border-color: var(--mh-red);
  color: #ffffff !important;
  transform: translateY(-1px);
}

/* Yintai DropPanel Mega Menu */
.yt-drop-panel {
  z-index: 1000;
  background: #ffffff;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  width: 100%;
  height: 0;
  padding: 0;
  transition: height 0.4s ease-in-out, padding-top 0.4s ease-in-out;
  position: absolute;
  top: 100%;
  left: 0;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border-top: 1px solid var(--border-color);
}

.yt-drop-panel.visible {
  height: 16.5rem;
  padding-top: 1.5rem;
}

.yt-drop-panel-content {
  text-align: center;
  flex-direction: column;
  display: inline-flex;
  transform: translateX(-50%);
  min-width: 14rem;
}

.yt-drop-panel-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--mh-red);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.yt-drop-panel-link {
  color: var(--text-primary);
  font-size: 1.05rem;
  font-weight: 500;
  line-height: 2.75rem;
  transition: color 0.2s, transform 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}

.yt-drop-panel-link:hover {
  color: var(--mh-red);
  transform: translateX(4px);
}

/* Mobile Hamburger & Drawer Menu */
.yt-hamburger {
  cursor: pointer;
  background: transparent;
  border: none;
  flex-direction: column;
  justify-content: space-between;
  width: 2.25rem;
  height: 1.6rem;
  padding: 0.2rem;
  display: none;
  z-index: 1002;
}

.yt-hamburger-bar {
  background: var(--text-primary);
  width: 100%;
  height: 2px;
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
}

.yt-hamburger.active .yt-hamburger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
  background: var(--mh-red);
}

.yt-hamburger.active .yt-hamburger-bar:nth-child(2) {
  opacity: 0;
}

.yt-hamburger.active .yt-hamburger-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  background: var(--mh-red);
}

.yt-mobile-drawer {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: #ffffff;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 18px 36px rgba(15, 23, 38, 0.14);
  z-index: 1001;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.yt-mobile-drawer.open {
  max-height: 85dvh;
  overflow-y: auto;
}

.yt-mobile-drawer-inner {
  padding: 1.1rem 1rem 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.yt-mobile-drawer-title {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--mh-red);
  text-transform: uppercase;
}

.yt-mobile-drawer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
}

.yt-mobile-nav-card {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.75rem 0.85rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  text-align: left;
  cursor: pointer;
  transition: all 0.2s ease;
}

.yt-mobile-nav-card:active,
.yt-mobile-nav-card:hover {
  border-color: var(--mh-red);
  background: var(--mh-red-soft);
}

.yt-mobile-nav-icon {
  font-size: 1.35rem;
  flex-shrink: 0;
}

.yt-mobile-nav-text {
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
  min-width: 0;
}

.yt-mobile-nav-text strong {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.yt-mobile-nav-text small {
  font-size: 0.72rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.yt-mobile-drawer-links {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding-top: 0.65rem;
  border-top: 1px dashed var(--border-color);
}

.yt-mobile-drawer-links a {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 0.45rem 0.5rem;
  border-radius: 0.5rem;
  transition: background 0.2s, color 0.2s;
}

.yt-mobile-drawer-links a:hover,
.yt-mobile-drawer-links a:active {
  background: var(--bg-secondary);
  color: var(--mh-red);
}

@media (max-width: 1100px) {
  .yt-nav,
  .yt-cross-yline,
  .yt-drop-panel {
    display: none !important;
  }
  .yt-hamburger {
    display: flex;
  }
  .yt-mobile-drawer {
    display: block;
  }
}

/* ==========================================================================
   3. CRYSTAL-CLEAR UNMASKED FULL-SCREEN HERO BANNER
   ========================================================================== */
.yt-hero {
  background-position: 50% 50%;
  background-size: cover;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 100dvh;
  padding-bottom: 2.75rem;
  display: flex;
  position: relative;
  overflow: hidden;
  background-color: #ffffff;
}

.yt-hero-slides {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.yt-hero-slide {
  position: absolute;
  inset: 0;
  background-position: center;
  background-size: cover;
  opacity: 0;
  transform: scale(1.04);
  transition: opacity 1.4s ease-in-out, transform 6s ease-out;
}

.yt-hero-slide.active {
  opacity: 1;
  transform: scale(1);
}

/* No mask/overlay at all — 100% clear original photo */
.yt-hero-overlay {
  display: none;
  background: none;
}

.yt-hero-content {
  z-index: 2;
  flex-direction: column;
  justify-content: flex-end;
  gap: 1.15rem;
  margin: 6.75rem auto 0 7%;
  padding: 1.65rem 2.15rem;
  width: fit-content;
  max-width: min(60rem, 86%);
  display: flex;
  position: relative;
  border-radius: 0.95rem;
  background: rgba(15, 23, 38, 0.16);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
}

.yt-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  background: var(--mh-red);
  color: #ffffff;
  padding: 0.42rem 1.1rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  width: fit-content;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
  opacity: 0;
  transform: translateY(30px);
  animation: heroFadeUp 0.9s var(--ease-out-quart) 0.3s forwards;
}

.yt-hero-eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ffffff;
  animation: pulseDot 1.8s infinite;
}

@keyframes pulseDot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.7; }
}

.yt-hero-title {
  color: #ffffff;
  letter-spacing: 0.03em;
  font-size: 3.55rem;
  font-weight: 800;
  line-height: 1.18;
  text-shadow: 0 3px 16px rgba(0, 0, 0, 0.55);
  opacity: 0;
  transform: translateY(40px);
  animation: heroFadeUp 1s var(--ease-out-quart) 0.45s forwards;
}

.yt-hero-title .red-accent {
  color: #ffffff;
  background: var(--mh-red);
  padding: 0.05rem 0.65rem;
  border-radius: 0.35rem;
  text-shadow: none;
}

.yt-hero-desc {
  color: #ffffff;
  letter-spacing: 0.01em;
  max-width: 56rem;
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.68;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.6);
  opacity: 0;
  transform: translateY(40px);
  animation: heroFadeUp 1s var(--ease-out-quart) 0.6s forwards;
}

/* Quick Module Entry Pills in Hero (4 in one single row) */
.yt-hero-pills {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.85rem;
  margin-top: 0.35rem;
  opacity: 0;
  transform: translateY(40px);
  animation: heroFadeUp 1s var(--ease-out-quart) 0.75s forwards;
}

.yt-hero-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.78rem 1.45rem;
  border-radius: 0.65rem;
  background: #ffffff;
  border: 1px solid #ffffff;
  color: #1a1d24;
  font-size: 1rem;
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.22);
  transition: all 0.3s var(--ease-out-quart);
}

.yt-hero-pill:hover {
  background: var(--mh-red);
  border-color: var(--mh-red);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(230, 0, 18, 0.4);
}

/* Hero Bottom Telemetry Bar & Slide Controls (Light/Thin Frosted Glass Template) */
.yt-hero-bottom-bar {
  z-index: 2;
  position: relative;
  width: 86%;
  max-width: 1720px;
  margin: 1.5rem auto 0;
  padding: 0.95rem 1.65rem;
  border-radius: 0.85rem;
  background: rgba(15, 23, 38, 0.16);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  opacity: 0;
  animation: heroFadeUp 1s var(--ease-out-quart) 0.9s forwards;
}

.yt-hero-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 2.75rem;
}

.yt-hero-metric {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.yt-hero-metric-val {
  color: #ffffff;
  font-size: 1.65rem;
  font-weight: 800;
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.55);
}

.yt-hero-metric-trend {
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.1rem 0.45rem;
  border-radius: 4px;
  background: #10b981;
  color: #ffffff;
  text-shadow: none;
}

.yt-hero-metric-label {
  color: #ffffff;
  font-size: 0.82rem;
  font-weight: 600;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.55);
}

.yt-hero-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.yt-hero-dot {
  width: 2.2rem;
  height: 4px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.55);
  border: none;
  cursor: pointer;
  transition: all 0.3s;
}

.yt-hero-dot.active {
  width: 3.5rem;
  background: var(--mh-red);
}

.yt-scroll-hint {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  margin-left: 1rem;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.55);
}

.yt-scroll-mouse {
  width: 1.25rem;
  height: 2rem;
  border: 1.5px solid #ffffff;
  border-radius: 999px;
  position: relative;
}

.yt-scroll-mouse::after {
  content: "";
  width: 3px;
  height: 6px;
  background: var(--mh-red);
  border-radius: 2px;
  position: absolute;
  top: 5px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollWheel 1.6s infinite;
}

@keyframes scrollWheel {
  0% { opacity: 1; transform: translate(-50%, 0); }
  100% { opacity: 0; transform: translate(-50%, 10px); }
}

@keyframes heroFadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   4. TRANSPARENT & UNMASKED 100dvh 4-COLUMN ROW ACCORDION
      Manhing Foods' 4 Core AI Modules: AI大蒜价格 / AI获客 / AI知识库 / AI地图
   ========================================================================== */
.yt-row-accordion {
  overflow-anchor: none;
  flex-direction: column;
  width: 100%;
  height: 100dvh;
  min-height: 46rem;
  display: flex;
  position: relative;
  overflow: hidden;
}

.yt-row-accordion-bg-container {
  z-index: 0;
  background-color: #ffffff;
  position: absolute;
  inset: 0;
}

.yt-row-accordion-bg-layer {
  will-change: opacity, transform;
  background-position: 50% 50%;
  background-repeat: no-repeat;
  background-size: cover;
  transition: opacity 0.9s var(--ease-in-out-cubic), transform 1.4s ease-out;
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: scale(1.03);
}

.yt-row-accordion-bg-layer.active {
  opacity: 1;
  transform: scale(1);
}

.yt-row-accordion-header {
  z-index: 2;
  width: 90%;
  max-width: 1800px;
  margin: 5rem auto 0.75rem;
  padding: 0.85rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-radius: 0.85rem;
  background: rgba(15, 23, 38, 0.16);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
  position: relative;
}

.yt-row-accordion-heading-group {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.yt-row-accordion-kicker {
  color: #ffffff;
  background: var(--mh-red);
  padding: 0.18rem 0.65rem;
  border-radius: 4px;
  width: fit-content;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.yt-row-accordion-title {
  color: #ffffff;
  font-size: 2.05rem;
  font-weight: 800;
  line-height: 1.25;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.55);
}

.yt-row-accordion-hint {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.35);
  padding: 0.4rem 0.95rem;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.5);
}

.yt-content-row {
  z-index: 2;
  min-height: 0;
  width: 90%;
  max-width: 1800px;
  color: #ffffff;
  flex: 1;
  margin: 0 auto;
  display: flex;
  position: relative;
}

.yt-content-item {
  min-height: 100%;
  transition: flex var(--duration) ease, padding-bottom var(--duration) ease;
  justify-content: flex-end;
  border-left: 0.0625rem solid rgba(255, 255, 255, 0.45);
  flex-direction: column;
  flex: 1;
  min-width: 0;
  padding-top: 1.5rem;
  padding-bottom: 2.5rem;
  display: flex;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  background: transparent;
}

.yt-content-item:last-child {
  border-right: 0.0625rem solid rgba(255, 255, 255, 0.45);
}

/* No mask on accordion columns */
.yt-content-item::after {
  display: none;
  background: none;
}

.yt-content-item.active {
  flex: 2.4;
  padding-bottom: 3.25rem;
}

/* Thin Frosted-Glass Backing Template strictly behind the text container */
.yt-content-item-container {
  z-index: 1;
  min-height: 6.25rem;
  transition: all var(--duration) ease-in-out;
  flex-direction: column;
  justify-content: center;
  margin: 0 0.45rem;
  padding: 1rem 1.05rem;
  border-radius: 0.85rem;
  background: rgba(15, 23, 38, 0.16);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
  display: flex;
  position: relative;
}

/* Signature Yintai Left Vertical Bar - Manhing Red #e60012 */
.yt-content-item-container::before {
  content: "";
  background: var(--mh-red);
  width: 0.3125rem;
  height: 4.5rem;
  border-radius: 0 4px 4px 0;
  position: absolute;
  top: 1.1rem;
  left: 0;
  transition: height var(--duration) ease;
}

.yt-content-item.active .yt-content-item-container {
  margin: 0 0.75rem;
  padding: 1.4rem 1.7rem;
  background: rgba(15, 23, 38, 0.20);
}

.yt-content-item.active .yt-content-item-container::before {
  height: 6.5rem;
}

.yt-item-index {
  font-family: "D-DIN-PRO", monospace;
  font-size: 0.86rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.08em;
  margin-bottom: 0.35rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.55);
}

.yt-item-status-badge {
  font-size: 0.7rem;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  background: var(--mh-red);
  color: #fff;
  font-weight: 600;
  text-shadow: none;
  white-space: nowrap;
}

.yt-content-item-title {
  color: #ffffff;
  transition: all var(--duration) ease-in-out;
  white-space: nowrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
  font-size: 1.38rem;
  font-weight: 800;
  display: flex;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.6);
}

.yt-content-item-subtitle {
  color: #ffffff;
  transition: font-size var(--duration) ease-in-out;
  font-size: 0.88rem;
  font-weight: 600;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.55);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.yt-content-item.active .yt-content-item-title {
  font-size: 2.3rem;
}

.yt-content-item.active .yt-content-item-subtitle {
  font-size: 1.12rem;
  color: #ffffff;
  white-space: normal;
}

.yt-content-item-wrapper {
  box-sizing: border-box;
  opacity: 0;
  height: 0;
  overflow: hidden;
  transition: all var(--duration) ease-in-out;
  flex-direction: column;
  justify-content: space-between;
  margin-top: 0;
  display: flex;
}

.yt-content-item.active .yt-content-item-wrapper {
  opacity: 1;
  height: 19rem;
  margin-top: 1.65rem;
}

/* Transparent KPI Mini-Grid inside Accordion Column (No blur mask) */
.yt-item-kpi-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  background: transparent;
  border-top: 1px solid rgba(255, 255, 255, 0.45);
  border-bottom: 1px solid rgba(255, 255, 255, 0.45);
  padding: 0.65rem 0;
}

.yt-item-kpi {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.yt-item-kpi-val {
  font-size: 1.2rem;
  font-weight: 800;
  color: #ffffff;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.6);
}

.yt-item-kpi-lbl {
  font-size: 0.75rem;
  font-weight: 600;
  color: #ffffff;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.55);
}

.yt-content-item-desc {
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.85;
  color: #ffffff;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.65);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.yt-content-item-actions {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.yt-content-item-links {
  color: #ffffff;
  flex-flow: wrap;
  gap: 0.65rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.6rem;
  display: flex;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.6);
}

.yt-content-item-links a {
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color 0.2s;
}

.yt-content-item-links a:hover {
  color: #ffd6d9;
}

.yt-item-cta-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.yt-item-enter-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--mh-red);
  color: #ffffff;
  border: none;
  padding: 0.6rem 1.35rem;
  border-radius: 0.45rem;
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
}

.yt-item-enter-btn:hover {
  background: var(--mh-red-hover);
  transform: translateX(3px);
}

.yt-item-jump-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: #ffffff;
  color: #1a1d24;
  border: 1px solid #ffffff;
  padding: 0.58rem 1rem;
  border-radius: 0.45rem;
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
  transition: all 0.25s;
}

.yt-item-jump-btn:hover {
  background: var(--mh-red);
  color: #ffffff;
  border-color: var(--mh-red);
}

/* Mobile Showcase Fallback (Exact Yintai mobileShowcase for <= 768px) */
.yt-mobile-showcase {
  display: none;
}

@media (max-width: 768px) {
  .yt-row-accordion {
    background: var(--bg-primary);
    height: auto;
    min-height: auto;
    padding: 2.5rem 1rem;
  }
  .yt-row-accordion-bg-container,
  .yt-row-accordion-header,
  .yt-content-row {
    display: none;
  }
  .yt-mobile-showcase {
    display: block;
  }
  .yt-mobile-showcase-heading {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.5rem;
    font-weight: 800;
  }
  .yt-mobile-showcase-media {
    aspect-ratio: 16 / 10;
    background: #142238;
    position: relative;
    overflow: hidden;
    border-radius: 0.75rem 0.75rem 0 0;
  }
  .yt-mobile-showcase-media img {
    object-fit: cover;
    width: 100%;
    height: 100%;
    display: block;
  }
  .yt-mobile-showcase-mask {
    display: none;
    background: none;
  }
  .yt-mobile-showcase-title {
    z-index: 1;
    color: #fff;
    font-size: 1.15rem;
    font-weight: 700;
    position: absolute;
    bottom: 3.5rem;
    left: 0.85rem;
    padding: 0.4rem 0.85rem;
    border-radius: 0.6rem;
    background: rgba(15, 23, 38, 0.18);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border: 1px solid rgba(255, 255, 255, 0.22);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.6);
  }
  .yt-mobile-showcase-tabs {
    z-index: 1;
    background: rgba(15, 23, 38, 0.18);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border-top: 1px solid rgba(255, 255, 255, 0.22);
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    display: flex;
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    overflow-x: auto;
  }
  .yt-mobile-showcase-tabs button {
    color: rgba(255, 255, 255, 0.78);
    background: none;
    border: 0;
    border-bottom: 2px solid transparent;
    flex: none;
    padding: 0 0 0.25rem;
    font-size: 0.85rem;
    cursor: pointer;
  }
  .yt-mobile-showcase-tabs button.active {
    color: #fff;
    border-bottom-color: var(--mh-red);
    font-weight: 700;
  }
  .yt-mobile-showcase-body {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0 0 0.75rem 0.75rem;
    padding: 1.25rem;
  }
  .yt-mobile-showcase-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
  }
  .yt-mobile-showcase-actions .yt-item-enter-btn,
  .yt-mobile-showcase-actions .yt-mobile-preview-btn {
    flex: 1;
    justify-content: center;
    min-width: 8.5rem;
  }
}

/* ==========================================================================
   5. INTERACTIVE AI WORKBENCH SECTION (五大AI模块沉浸式交互预览舱)
   ========================================================================== */
.ai-workbench-section {
  padding: 6rem 0;
  background: var(--bg-secondary);
  position: relative;
  border-bottom: 1px solid var(--border-color);
}

.section-container {
  width: 86%;
  max-width: 1720px;
  margin: 0 auto;
}

.yt-section-title-wrap {
  text-align: center;
  margin-bottom: 3.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.yt-section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--mh-red);
  background: var(--mh-red-soft);
  padding: 0.35rem 0.95rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 0.85rem;
}

.yt-section-title {
  color: var(--text-primary);
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1.25;
}

.yt-section-subtitle {
  color: var(--text-secondary);
  margin-top: 0.85rem;
  font-size: 1.125rem;
  max-width: 48rem;
  line-height: 1.6;
}

/* Workbench Top Module Switcher Tabs (5 Modules) */
.wb-tabs {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.85rem;
  margin-bottom: 2rem;
}

.wb-tab-btn {
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: 0.9rem;
  padding: 1.05rem 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  cursor: pointer;
  text-align: left;
  transition: all 0.3s var(--ease-out-quart);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.wb-tab-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--mh-red);
  opacity: 0;
  transition: opacity 0.25s;
}

.wb-tab-btn:hover {
  transform: translateY(-2px);
  border-color: rgba(230, 0, 18, 0.35);
}

.wb-tab-btn.active {
  border-color: var(--mh-red);
  background: var(--bg-card);
  box-shadow: 0 10px 28px rgba(230, 0, 18, 0.14);
}

.wb-tab-btn.active::before {
  opacity: 1;
}

.wb-tab-icon {
  width: 3.1rem;
  height: 3.1rem;
  border-radius: 0.75rem;
  background: var(--mh-red-soft);
  color: var(--mh-red);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
  transition: all 0.25s;
}

.wb-tab-btn.active .wb-tab-icon {
  background: var(--mh-red);
  color: #ffffff;
}

.wb-tab-info {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.wb-tab-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.wb-tab-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Workbench Panel Container */
.wb-panel {
  display: none;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 1.15rem;
  padding: 2.25rem;
  box-shadow: var(--shadow-md);
  animation: fadePanel 0.4s ease;
}

.wb-panel.active {
  display: block;
}

@keyframes fadePanel {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.wb-panel-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-bottom: 1.5rem;
  margin-bottom: 1.75rem;
  border-bottom: 1px solid var(--border-color);
}

.wb-panel-title-group {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.wb-panel-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
}

.wb-live-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  font-weight: 700;
  color: #10b981;
  background: rgba(16, 185, 129, 0.12);
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
}

.wb-grid-2col {
  display: grid;
  grid-template-columns: 1.55fr 1fr;
  gap: 1.75rem;
  align-items: start;
}

/* Module 1: AI Garlic Price Styles */
.price-toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.sku-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.sku-pill {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.45rem 0.9rem;
  border-radius: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.sku-pill.active,
.sku-pill:hover {
  background: var(--mh-red);
  color: #fff;
  border-color: var(--mh-red);
}

.chart-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.85rem;
  padding: 1.25rem;
  position: relative;
}

.chart-stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.chart-stat-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.chart-stat-lbl {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.chart-stat-val {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
}

.chart-svg-wrap {
  width: 100%;
  height: 17.5rem;
  position: relative;
}

.chart-svg-wrap svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

/* FOB Calculator Box */
.calc-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.85rem;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.calc-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.calc-form-row {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.calc-form-row label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.calc-select,
.calc-input {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 0.9rem;
}

.calc-result-box {
  background: linear-gradient(135deg, rgba(230, 0, 18, 0.08) 0%, rgba(230, 0, 18, 0.02) 100%);
  border: 1px solid rgba(230, 0, 18, 0.28);
  border-radius: 0.75rem;
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.calc-price-big {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--mh-red);
}

/* Module 2: AI Lead Gen Styles */
.leads-table-wrap {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.85rem;
  overflow: hidden;
}

.leads-list {
  display: flex;
  flex-direction: column;
}

.lead-row {
  display: grid;
  grid-template-columns: 2fr 1.1fr 1.1fr 0.9fr auto;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  transition: background 0.2s;
  cursor: pointer;
}

.lead-row:last-child {
  border-bottom: none;
}

.lead-row:hover,
.lead-row.selected {
  background: var(--mh-red-soft);
}

.lead-buyer-name {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.98rem;
}

.lead-buyer-meta {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

.lead-match-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  font-weight: 700;
  font-size: 0.8rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  width: fit-content;
}

.ai-email-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.85rem;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.ai-email-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 0.65rem;
  padding: 1rem;
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--text-primary);
  min-height: 13.5rem;
  white-space: pre-wrap;
}

/* Module 3: AI Knowledge Base Styles */
.kb-chat-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.85rem;
  display: flex;
  flex-direction: column;
  height: 26rem;
  overflow: hidden;
}

.kb-messages {
  flex: 1;
  padding: 1.25rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.kb-msg {
  display: flex;
  gap: 0.75rem;
  max-width: 88%;
}

.kb-msg.user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.kb-avatar {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}

.kb-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.kb-bubble {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 0.85rem 1.1rem;
  border-radius: 0.85rem;
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--text-primary);
}

.kb-msg.user .kb-bubble {
  background: var(--mh-red);
  color: #fff;
  border-color: var(--mh-red);
}

.kb-input-bar {
  padding: 0.85rem 1rem;
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 0.65rem;
}

.kb-doc-cards {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.kb-doc-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 1rem 1.15rem;
  cursor: pointer;
  transition: all 0.2s;
}

.kb-doc-card:hover {
  border-color: var(--mh-red);
  transform: translateX(4px);
}

/* Module 4: AI Global Map Styles */
.map-canvas-box {
  background: #eef5fc;
  border: 1px solid rgba(22, 119, 255, 0.16);
  border-radius: 0.85rem;
  height: 25rem;
  position: relative;
  overflow: hidden;
}

.map-svg {
  width: 100%;
  height: 100%;
}

.map-hub-node {
  cursor: pointer;
  transition: transform 0.25s;
}

.map-hub-node:hover {
  transform: scale(1.25);
}

.map-route-arc {
  fill: none;
  stroke: var(--mh-red);
  stroke-width: 2;
  stroke-dasharray: 6 6;
  animation: dashFlow 18s linear infinite;
}

@keyframes dashFlow {
  to {
    stroke-dashoffset: -240;
  }
}

/* ==========================================================================
   6. YINTAI DUAL SUSTAINABLE/STRENGTH CARDS (Home-module__pJnrTG__cardsInner)
   ========================================================================== */
.yt-cards-section {
  background-position: 50% 50%;
  background-repeat: no-repeat;
  background-size: cover;
  width: 100%;
  padding: 5.5rem 0;
  position: relative;
  border-bottom: 1px solid var(--border-color);
}

.yt-cards-mask {
  display: none;
  background: none;
}

.yt-cards-inner {
  z-index: 1;
  position: relative;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.75rem;
  max-width: 1720px;
  width: 86%;
  margin: 0 auto;
  display: grid;
}

.yt-card {
  aspect-ratio: 850 / 560;
  align-items: flex-end;
  width: 100%;
  display: flex;
  position: relative;
  overflow: hidden;
  border-radius: 0.75rem;
  box-shadow: 0 14px 36px rgba(15, 25, 45, 0.12);
}

.yt-card-bg {
  background-position: 50% 50%;
  background-repeat: no-repeat;
  background-size: cover;
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
}

.yt-card-overlay {
  display: none;
  background: none;
}

.yt-card-content {
  z-index: 1;
  color: #ffffff;
  margin: 1.5rem;
  padding: 1.35rem 1.75rem;
  border-radius: 0.85rem;
  background: rgba(15, 23, 38, 0.18);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
  position: relative;
}

.yt-card-tag {
  display: inline-block;
  background: var(--mh-red);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  margin-bottom: 0.75rem;
  letter-spacing: 0.08em;
}

.yt-card-title {
  margin: 0 0 0.65rem;
  font-size: 2rem;
  font-weight: 800;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.55);
}

.yt-card-desc {
  opacity: 0.98;
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.68;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.55);
}

/* ==========================================================================
   7. YINTAI INTERACTIVE NEWS & AI INTELLIGENCE SECTION (Home-module__pJnrTG__newsSection)
   ========================================================================== */
.yt-news-section {
  background: var(--news-background);
  padding: 5.5rem 0;
  position: relative;
}

.yt-news-grid {
  box-sizing: border-box;
  grid-template-columns: minmax(0, 950fr) minmax(0, 750fr);
  align-items: stretch;
  gap: min(1.25vw, 24px);
  width: 86%;
  max-width: 1720px;
  margin: 0 auto;
  display: grid;
}

.yt-news-featured {
  cursor: pointer;
  overflow: hidden;
  border-radius: 0.65rem;
  position: relative;
  box-shadow: var(--shadow-sm);
}

.yt-news-featured-wrap {
  aspect-ratio: 950 / 560;
  height: 100%;
  background: #f0f3f7;
  width: 100%;
  position: relative;
  overflow: hidden;
}

.yt-news-featured-wrap::after {
  display: none;
  background: none;
}

.yt-news-featured-img {
  object-fit: cover;
  width: 100%;
  height: 100%;
  display: block;
  transition: transform 0.8s ease, opacity 0.35s ease;
}

.yt-news-featured-badge {
  position: absolute;
  top: 1.5rem;
  left: 1.75rem;
  z-index: 2;
  background: var(--mh-red);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.3rem 0.85rem;
  border-radius: 4px;
}

.yt-news-featured-caption {
  z-index: 2;
  color: #ffffff;
  width: auto;
  font-size: 1.32rem;
  font-weight: 700;
  line-height: 1.45;
  position: absolute;
  bottom: 1.25rem;
  left: 1.25rem;
  right: 1.25rem;
  margin: 0;
  padding: 0.9rem 1.25rem;
  border-radius: 0.75rem;
  background: rgba(15, 23, 38, 0.18);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.55);
}

.yt-news-list {
  flex-direction: column;
  gap: 0.75rem;
  display: flex;
  justify-content: space-between;
}

.yt-news-item {
  box-sizing: border-box;
  cursor: pointer;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-left: 4px solid transparent;
  border-radius: 0.65rem;
  flex-direction: column;
  justify-content: center;
  flex: 1;
  padding: 1.35rem 1.875rem;
  display: flex;
  transition: all 0.3s ease;
}

.yt-news-item.active,
.yt-news-item:hover {
  border-left-color: var(--mh-red);
  box-shadow: var(--shadow-sm);
}

.yt-news-item-title {
  color: var(--text-primary);
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.4;
  transition: color 0.3s ease;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.yt-news-item.active .yt-news-item-title {
  color: var(--mh-red);
  font-weight: 700;
}

.yt-news-item-snippet {
  color: var(--text-secondary);
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
  line-height: 1.6;
  display: -webkit-box;
  overflow: hidden;
}

.yt-news-item-date-wrap {
  justify-content: space-between;
  align-items: center;
  display: flex;
  margin-top: auto;
}

.yt-news-item-date {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.yt-news-item-arrow {
  color: var(--text-muted);
  font-weight: 700;
  transition: transform 0.3s, color 0.3s;
}

.yt-news-item.active .yt-news-item-arrow {
  color: var(--mh-red);
  transform: translateX(4px);
}

/* ==========================================================================
   8. YINTAI + MANHING HYBRID FOOTER (Footer-module__3hUVsW__footer)
   ========================================================================== */
.yt-footer {
  color: var(--text-primary);
  background: var(--footer-upper-bg);
  border-top: 1px solid var(--border-color);
}

.yt-footer-upper {
  padding: 4rem 3.75rem;
  max-width: 1720px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 3rem;
}

.yt-footer-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(7.5rem, 1fr));
  gap: 2rem;
  flex: 1;
}

.yt-footer-col {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.yt-footer-title {
  color: var(--text-primary);
  margin-bottom: 0.25rem;
  font-size: 1rem;
  font-weight: 700;
}

.yt-footer-link {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.4;
  transition: color 0.2s;
}

.yt-footer-link:hover {
  color: var(--mh-red);
}

.yt-footer-brand-box {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 1.25rem 1.75rem;
  border-radius: 0.85rem;
}

.yt-footer-qr {
  width: 5.5rem;
  height: 5.5rem;
  border-radius: 0.4rem;
  object-fit: cover;
}

.yt-footer-hotline-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.yt-footer-hotline-num {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--mh-red);
  margin: 0.2rem 0 0.4rem;
}

.yt-footer-lower {
  color: var(--text-secondary);
  background: var(--footer-lower-bg);
  border-top: 1px solid var(--border-color);
  min-height: 3.75rem;
  padding: 0.75rem 0;
  display: flex;
  align-items: center;
}

.yt-footer-lower-inner {
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.yt-footer-copyright {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  color: var(--text-secondary);
}

.yt-footer-copyright a:hover {
  color: var(--mh-red);
  text-decoration: underline;
}

/* ==========================================================================
   9. MANHING ORIGINAL FLOATING AI ASSISTANT + PORTAL CONFIG MODAL
   ========================================================================== */
.float-service-btn {
  position: fixed;
  right: 24px;
  top: 102px;
  bottom: auto;
  width: 62px;
  height: 62px;
  border-radius: 50%;
  overflow: hidden;
  background-image: url("../assets/ai-avatar.png");
  background-size: 100% 100%;
  background-position: center;
  background-repeat: no-repeat;
  background-color: #fff;
  box-shadow: 0 6px 24px rgba(230, 0, 18, 0.42);
  border: 2px solid var(--mh-red);
  z-index: 100001;
  cursor: grab;
  user-select: none;
  transition: transform 0.2s;
}

.float-service-btn:hover {
  transform: scale(1.08);
}

.service-tip {
  position: fixed;
  right: 96px;
  top: 114px;
  bottom: auto;
  background: var(--bg-card);
  color: var(--text-primary);
  padding: 9px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: var(--shadow-md);
  z-index: 99998;
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(230, 0, 18, 0.25);
  cursor: pointer;
  transition: opacity 0.3s, transform 0.3s;
}

.service-tip.hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateX(10px);
}

.service-tip .tip-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  animation: pulseDot 1.8s infinite;
}

.chat-window-mask {
  position: fixed;
  right: 24px;
  top: 174px;
  bottom: auto;
  width: 410px;
  height: 560px;
  max-height: calc(100dvh - 196px);
  background: var(--bg-card);
  border-radius: 14px;
  overflow: hidden;
  display: none;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-strong);
  z-index: 100000;
}

.chat-window-mask.open {
  display: flex;
}

.chat-window-bar {
  background: linear-gradient(90deg, var(--mh-red) 0%, #b8000e 100%);
  color: #fff;
  padding: 0.75rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  font-weight: 700;
}

/* Modal for Portal URL Configuration & Global Search */
.portal-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(6, 12, 24, 0.65);
  backdrop-filter: blur(8px);
  z-index: 100005;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.portal-modal-backdrop.open {
  display: flex;
}

.portal-modal {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: 1rem;
  width: 100%;
  max-width: 620px;
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  color: var(--text-primary);
}

/* Module 5: AI Smart Office Styles */
.office-source-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 1.15rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.office-doc-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--border-color);
}

.office-doc-title {
  font-size: 0.96rem;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.office-badge-ok {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: #10b981;
  background: rgba(16, 185, 129, 0.14);
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
}

.office-field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
}

.office-field-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.6rem;
  padding: 0.65rem 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.office-field-lbl {
  font-size: 0.74rem;
  color: var(--text-muted);
  font-weight: 600;
}

.office-field-val {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem;
}

.office-check-tag {
  font-size: 0.7rem;
  font-weight: 700;
  color: #10b981;
  white-space: nowrap;
}

/* ==========================================================================
   10. COMPREHENSIVE RESPONSIVE & MOBILE ADAPTATION (平板 / 手机端全适配)
   ========================================================================== */
@media (max-width: 1280px) {
  .wb-tabs {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .yt-content-row,
  .yt-row-accordion-header,
  .section-container,
  .yt-cards-inner,
  .yt-news-grid,
  .yt-hero-bottom-bar {
    width: 92%;
  }
}

@media (max-width: 1024px) {
  .wb-tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .wb-grid-2col,
  .yt-cards-inner,
  .yt-news-grid {
    grid-template-columns: 1fr;
  }
  .yt-footer-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .yt-row-accordion-hint {
    display: none;
  }
}

@media (max-width: 768px) {
  /* 1. Compact Mobile Top Header */
  .yt-header {
    height: 3.9rem;
  }
  .header-row {
    width: 94vw;
  }
  .yt-header-inner {
    padding: 0 0.75rem;
  }
  .yt-logo-badge {
    height: 2.15rem;
    padding: 2px 5px;
  }
  .yt-brand-cn {
    font-size: 0.92rem;
    gap: 0.3rem;
  }
  .yt-brand-cn .ai-tag {
    font-size: 0.62rem;
    padding: 0.08rem 0.35rem;
  }
  .yt-brand-en {
    font-size: 0.56rem;
    letter-spacing: 0.03em;
    max-width: 46vw;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .yt-header-actions {
    gap: 0.4rem;
    margin-left: 0.25rem;
  }
  .yt-action-btn {
    height: 2.05rem;
    padding: 0 0.65rem;
    font-size: 0.78rem;
  }
  .yt-action-btn.icon-only {
    width: 2.05rem;
  }

  /* 2. Mobile Hero Banner & Telemetry Grid */
  .yt-hero {
    min-height: 78dvh;
    padding-bottom: 1.25rem;
  }
  .yt-hero-bottom-bar {
    width: 92vw;
    margin: 4.5rem auto 0;
    padding: 0.9rem 1rem;
    gap: 0.9rem;
  }
  .yt-hero-metrics {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem 0.85rem;
    width: 100%;
  }
  .yt-hero-metric-val {
    font-size: 1.2rem;
    flex-wrap: wrap;
  }
  .yt-hero-metric-trend {
    font-size: 0.66rem;
    padding: 0.08rem 0.35rem;
  }
  .yt-hero-metric-label {
    font-size: 0.72rem;
    line-height: 1.35;
  }
  .yt-hero-controls {
    width: 100%;
    justify-content: space-between;
    padding-top: 0.45rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
  }
  .yt-scroll-hint {
    margin-left: auto;
    font-size: 0.78rem;
  }

  /* 3. Mobile Showcase Section (5 Modules) */
  .yt-row-accordion {
    padding: 1.75rem 4vw;
  }
  .yt-mobile-showcase-heading {
    font-size: 1.32rem;
    margin-bottom: 0.85rem;
  }
  .yt-mobile-showcase-media {
    aspect-ratio: 16 / 10.5;
  }
  .yt-mobile-showcase-title {
    font-size: 1rem;
    bottom: 3.2rem;
    left: 0.75rem;
    padding: 0.32rem 0.7rem;
  }
  .yt-mobile-showcase-tabs {
    gap: 0.65rem;
    padding: 0.65rem 0.75rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .yt-mobile-showcase-tabs::-webkit-scrollbar {
    display: none;
  }
  .yt-mobile-showcase-tabs button {
    font-size: 0.82rem;
    white-space: nowrap;
  }
  .yt-mobile-showcase-body {
    padding: 1rem;
  }

  /* 4. Interactive AI Workbench on Mobile */
  .ai-workbench-section {
    padding: 2.75rem 0;
  }
  .section-container {
    width: 92vw;
  }
  .yt-section-title-wrap {
    margin-bottom: 1.65rem;
  }
  .yt-section-kicker {
    font-size: 0.72rem;
    padding: 0.28rem 0.75rem;
    text-align: center;
  }
  .yt-section-title {
    font-size: 1.55rem;
  }
  .yt-section-subtitle {
    font-size: 0.88rem;
    margin-top: 0.55rem;
  }

  /* Horizontal Touch-Scrollable 5-Module Switcher Bar on Mobile */
  .wb-tabs {
    display: flex;
    overflow-x: auto;
    gap: 0.65rem;
    margin-bottom: 1.25rem;
    padding-bottom: 0.35rem;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .wb-tabs::-webkit-scrollbar {
    display: none;
  }
  .wb-tab-btn {
    flex: 0 0 auto;
    width: 13.5rem;
    padding: 0.85rem 0.95rem;
    gap: 0.65rem;
    scroll-snap-align: start;
  }
  .wb-tab-icon {
    width: 2.5rem;
    height: 2.5rem;
    font-size: 1.15rem;
  }
  .wb-tab-name {
    font-size: 0.98rem;
  }
  .wb-tab-desc {
    font-size: 0.74rem;
  }

  .wb-panel {
    padding: 1.15rem 1rem;
    border-radius: 0.9rem;
  }
  .wb-panel-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    padding-bottom: 1rem;
    margin-bottom: 1.15rem;
  }
  .wb-panel-title-group {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.45rem;
  }
  .wb-panel-title {
    font-size: 1.15rem;
    line-height: 1.35;
  }
  .wb-live-badge {
    font-size: 0.72rem;
    white-space: normal;
    line-height: 1.35;
  }

  /* Touch-scrollable SKU / Region / Scenario pills on mobile */
  .price-toolbar .sku-pills {
    flex-wrap: nowrap;
    overflow-x: auto;
    width: 100%;
    padding-bottom: 0.25rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .price-toolbar .sku-pills::-webkit-scrollbar {
    display: none;
  }
  .price-toolbar .sku-pill {
    flex: 0 0 auto;
    white-space: nowrap;
  }

  .chart-box,
  .calc-card,
  .ai-email-box {
    padding: 1rem;
  }
  .chart-stats-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
  }
  .chart-stat-val {
    font-size: 1.12rem;
  }
  .chart-svg-wrap {
    height: 13.5rem;
  }
  .calc-title {
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 1.02rem;
  }
  .calc-price-big {
    font-size: 1.45rem;
  }
  .lead-row {
    grid-template-columns: 1fr;
    gap: 0.45rem;
    padding: 0.9rem 1rem;
  }
  .kb-chat-box {
    height: 22rem;
  }
  .kb-msg {
    max-width: 94%;
  }
  .kb-input-bar {
    padding: 0.65rem;
    gap: 0.45rem;
  }
  .map-canvas-box {
    height: 16.5rem;
  }
  .office-field-grid {
    grid-template-columns: 1fr;
  }

  #priceSystemIframe,
  #mapSystemIframe,
  #officeSystemIframe {
    height: 420px !important;
  }

  /* 5. Feature Cards & News Section on Mobile */
  .yt-cards-section,
  .yt-news-section {
    padding: 2.75rem 0;
  }
  .yt-cards-inner,
  .yt-news-grid {
    width: 92vw;
    gap: 1.15rem;
  }
  .yt-card {
    aspect-ratio: 16 / 11;
  }
  .yt-card-content {
    margin: 0.75rem;
    padding: 0.95rem 1.1rem;
  }
  .yt-card-title {
    font-size: 1.28rem;
    margin-bottom: 0.35rem;
  }
  .yt-card-desc {
    font-size: 0.84rem;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .yt-news-featured-badge {
    top: 0.85rem;
    left: 0.85rem;
    font-size: 0.72rem;
    padding: 0.22rem 0.65rem;
  }
  .yt-news-featured-caption {
    font-size: 0.95rem;
    bottom: 0.75rem;
    left: 0.75rem;
    right: 0.75rem;
    padding: 0.65rem 0.85rem;
  }
  .yt-news-item {
    padding: 1rem 1.1rem;
  }
  .yt-news-item-title {
    font-size: 1rem;
    white-space: normal;
  }
  .yt-news-item-snippet {
    font-size: 0.85rem;
  }

  /* 6. Footer on Mobile */
  .yt-footer-upper {
    padding: 2.25rem 4vw;
    gap: 1.75rem;
  }
  .yt-footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.35rem 1rem;
    width: 100%;
  }
  .yt-footer-brand-box {
    width: 100%;
    padding: 1rem 1.15rem;
    gap: 1rem;
  }
  .yt-footer-qr {
    width: 4.6rem;
    height: 4.6rem;
  }
  .yt-footer-hotline-num {
    font-size: 1.2rem;
  }
  .yt-footer-lower-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.65rem;
  }
  .yt-footer-copyright {
    gap: 0.5rem 1rem;
    font-size: 0.78rem;
  }

  /* 7. Floating AI Service Button & Modals on Mobile */
  .float-service-btn {
    width: 52px;
    height: 52px;
    right: 14px;
    top: auto;
    bottom: 20px;
  }
  .service-tip {
    right: 74px;
    top: auto;
    bottom: 28px;
    font-size: 12px;
    padding: 7px 12px;
  }
  .chat-window-mask {
    right: 3vw;
    left: 3vw;
    top: auto;
    bottom: 82px;
    width: 94vw;
    height: 68dvh;
    max-height: calc(100dvh - 100px);
  }
  .portal-modal-backdrop {
    padding: 0.85rem;
  }
  .portal-modal {
    padding: 1.25rem 1.1rem;
    max-height: 88dvh;
    overflow-y: auto;
  }
  .mh-building-banner {
    top: 4.5rem;
    min-width: 0;
    width: 92vw;
    padding: 0.8rem 1rem 1rem;
  }
}

@media (max-width: 480px) {
  .yt-mobile-drawer-grid {
    grid-template-columns: 1fr;
  }
  .yt-brand-en {
    display: none;
  }
  .yt-card {
    aspect-ratio: 16 / 12.5;
  }
  .yt-footer-brand-box {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ==========================================================================
   11. "正在建设中" (UNDER CONSTRUCTION) INTERACTIVE PROMPT EFFECTS
   ========================================================================== */
@keyframes mhShake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-5px); }
  40% { transform: translateX(5px); }
  60% { transform: translateX(-3px); }
  80% { transform: translateX(3px); }
}

.is-building-shake {
  animation: mhShake 0.42s cubic-bezier(0.36, 0.07, 0.19, 0.97) both !important;
}

@keyframes mhClickRipple {
  0% {
    transform: translate(-50%, -50%) scale(0.2);
    opacity: 0.9;
  }
  100% {
    transform: translate(-50%, -50%) scale(2.6);
    opacity: 0;
  }
}

.mh-click-ripple {
  position: fixed;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2.5px solid var(--mh-red);
  background: rgba(230, 0, 18, 0.15);
  pointer-events: none;
  z-index: 100020;
  animation: mhClickRipple 0.65s ease-out forwards;
}

@keyframes mhFloatUpTip {
  0% {
    opacity: 0;
    transform: translate(-50%, 0) scale(0.88);
  }
  18% {
    opacity: 1;
    transform: translate(-50%, -14px) scale(1);
  }
  80% {
    opacity: 1;
    transform: translate(-50%, -28px) scale(1);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -42px) scale(0.94);
  }
}

.mh-cursor-tip {
  position: fixed;
  pointer-events: none;
  z-index: 100025;
  background: #1a1d24;
  color: #ffffff;
  border: 1.5px solid var(--mh-red);
  border-radius: 999px;
  padding: 0.38rem 0.9rem;
  font-size: 0.84rem;
  font-weight: 700;
  white-space: nowrap;
  box-shadow: 0 8px 22px rgba(230, 0, 18, 0.28), 0 4px 12px rgba(0, 0, 0, 0.22);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  animation: mhFloatUpTip 1.35s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.mh-building-banner {
  position: fixed;
  top: 6.4rem;
  left: 50%;
  transform: translate(-50%, -24px) scale(0.96);
  opacity: 0;
  pointer-events: none;
  z-index: 100030;
  background: #ffffff;
  color: #1a1d24;
  border: 1px solid rgba(230, 0, 18, 0.28);
  border-radius: 0.9rem;
  padding: 0.95rem 1.4rem 1.15rem;
  min-width: 320px;
  max-width: 92vw;
  box-shadow: 0 18px 42px rgba(15, 23, 38, 0.16), 0 4px 14px rgba(230, 0, 18, 0.12);
  display: flex;
  align-items: center;
  gap: 0.9rem;
  overflow: hidden;
  transition: opacity 0.32s cubic-bezier(0.22, 1, 0.36, 1), transform 0.32s cubic-bezier(0.22, 1, 0.36, 1);
}

.mh-building-banner.visible {
  opacity: 1;
  transform: translate(-50%, 0) scale(1);
  pointer-events: auto;
  cursor: pointer;
}

.mh-building-icon {
  width: 2.65rem;
  height: 2.65rem;
  border-radius: 0.7rem;
  background: rgba(230, 0, 18, 0.09);
  color: var(--mh-red);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  flex-shrink: 0;
  animation: pulseDot 1.6s infinite;
}

.mh-building-body {
  display: flex;
  flex-direction: column;
  gap: 0.18rem;
}

.mh-building-title {
  font-size: 0.98rem;
  font-weight: 800;
  color: #1a1d24;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.mh-building-tag {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  background: var(--mh-red);
  color: #ffffff;
}

.mh-building-sub {
  font-size: 0.8rem;
  color: #4e5666;
  font-weight: 500;
}

@keyframes mhProgressBar {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(220%); }
}

.mh-building-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(230, 0, 18, 0.12);
  overflow: hidden;
}

.mh-building-progress::after {
  content: "";
  display: block;
  width: 45%;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--mh-red), #ff6b00, transparent);
  animation: mhProgressBar 1.35s infinite ease-in-out;
}