/**
 * PDFW.COM - 首页独立样式 (Index Page Dedicated Stylesheet)
 * 包含：Hero 视觉轮播、签署体验演示卡、方案对比、Bento网格、4步流程、
 * 安全留痕专区、行业场景、FAQ手风琴、底部CTA、弹窗组件及首页专属响应式断点。
 */

/* ==========================================================================
   1. Hero 主视觉与轮播组件 (Hero Section & Carousel)
   ========================================================================== */
/* ==========================================================================
       3. Hero 主视觉与号召区 (Hero Section - Redesigned Next-Gen SaaS)
       ========================================================================== */
.hero-section {
  position: relative;
  padding: 104px 0 82px;
  overflow: hidden;
  background: radial-gradient(circle at 50% 0%, rgba(22, 119, 255, 0.09) 0%, rgba(248, 250, 252, 0) 70%), var(--bg-body);
}

.hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(148, 163, 184, 0.15) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 0%, #000 70%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 0%, #000 70%, transparent 100%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 56px;
  min-height: 470px;
  z-index: 1;
}

/* 左侧文案与控制台 */
.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
}

.hero-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(22, 119, 255, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--primary);
  box-shadow: 0 2px 8px rgba(22, 119, 255, 0.08);
  backdrop-filter: blur(8px);
  user-select: none;
}

.hero-badge-pill .pill-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
  animation: none;
}

@keyframes pulseDot {

  0%,
  100% {
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
  }

  50% {
    box-shadow: 0 0 0 6px rgba(16, 185, 129, 0.4);
  }
}

.hero-title {
  font-size: 3.25rem;
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.035em;
  color: var(--text-main);
}

.hero-title-highlight {
  background: var(--primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 560px;
}

.hero-cta-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 4px;
  flex-wrap: wrap;
}

.hero-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 28px;
  border-radius: 10px;
  background: var(--primary-gradient);
  color: #ffffff;
  box-shadow: 0 6px 18px rgba(22, 119, 255, 0.28);
  transition: var(--transition);
}

.hero-btn-primary:hover {
  box-shadow: 0 8px 24px rgba(22, 119, 255, 0.4);
  transform: translateY(-2px);
  color: #ffffff;
}

.hero-btn-demo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 22px;
  border-radius: 10px;
  background: #ffffff;
  border: 1px solid var(--border-dashed);
  color: var(--text-main);
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.04);
  transition: var(--transition);
  cursor: pointer;
}

.hero-btn-demo:hover {
  background: var(--bg-body);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(22, 119, 255, 0.12);
}

.hero-trust-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.hero-trust-bar svg,
.hero-trust-bar i {
  color: var(--color-success);
  flex-shrink: 0;
}

.hero-cert-link {
  color: var(--primary);
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: var(--transition);
}

.hero-cert-link:hover {
  color: var(--primary-hover);
}

/* 3 栏核心特性微卡片 */
.hero-features-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  width: 100%;
  margin-top: 14px;
  padding-top: 18px;
  border-top: 1px solid var(--border-color);
}

.hero-feature-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 12px 14px;
  transition: var(--transition);
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.02);
}

.hero-feature-item:hover {
  border-color: var(--border-dashed);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.06);
  transform: translateY(-1px);
}

.hero-feature-title {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-feature-desc {
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* 右侧：全新签约工作台看板 (Hero Interactive Showcase Studio) */
.hero-showcase-wrap {
  position: relative;
  width: 100%;
}

/* 首屏安全链接流程视觉：不模拟后台界面，以轻量的连接关系表达产品价值。 */
.secure-link-artwork {
  position: relative;
  min-height: 450px;
  isolation: isolate;
}

.secure-link-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: -2;
  width: 390px;
  height: 390px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(96, 165, 250, .28), rgba(191, 219, 254, .14) 42%, transparent 70%);
  transform: translate(-50%, -50%);
}

.secure-link-orbit {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: -1;
  border: 1px solid rgba(96, 165, 250, .3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.secure-link-orbit-one { width: 335px; height: 335px; }
.secure-link-orbit-two { width: 442px; height: 285px; border-color: rgba(129, 140, 248, .22); transform: translate(-50%, -50%) rotate(-24deg); }

.secure-link-card {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(100%, 300px);
  padding: 20px;
  border: 1px solid rgba(147, 197, 253, .8);
  border-radius: 20px;
  background: rgba(255, 255, 255, .9);
  box-shadow: 0 24px 54px rgba(37, 99, 235, .18), inset 0 1px rgba(255, 255, 255, .96);
  transform: translate(-50%, -50%);
  backdrop-filter: blur(10px);
}

.secure-link-card-head,
.secure-link-copy,
.secure-link-node {
  display: flex;
  align-items: center;
}

.secure-link-card-head {
  gap: 8px;
  color: #365777;
  font-size: .75rem;
  font-weight: 700;
}

.secure-link-card-head > i { margin-left: auto; color: #10b981; }

.secure-link-lock,
.secure-node-icon {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  color: var(--primary);
  background: #eaf3ff;
}

.secure-link-lock { width: 27px; height: 27px; border-radius: 8px; }

.secure-link-url {
  margin: 16px 0 12px;
  padding: 11px 12px;
  overflow: hidden;
  border: 1px solid #dbeafe;
  border-radius: 9px;
  background: #f8fbff;
  color: #5780a9;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .75rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.secure-link-url b { color: var(--primary); }

.secure-link-copy { gap: 7px; color: #71849a; font-size: .68rem; }
.secure-link-copy i { color: #60a5fa; }

.secure-link-node {
  position: absolute;
  gap: 10px;
  min-width: 156px;
  padding: 11px 13px;
  border: 1px solid rgba(203, 213, 225, .78);
  border-radius: 14px;
  background: rgba(255, 255, 255, .8);
  box-shadow: 0 12px 28px rgba(51, 65, 85, .08);
  backdrop-filter: blur(7px);
}

.secure-node-icon { width: 32px; height: 32px; border-radius: 10px; font-size: .82rem; }
.secure-link-node small,
.secure-link-node strong { display: block; }
.secure-link-node small { color: #8292a6; font-size: .6rem; }
.secure-link-node strong { margin-top: 3px; color: #34516d; font-size: .7rem; white-space: nowrap; }

.secure-link-document { top: 28px; left: 0; }
.secure-link-document .secure-node-icon { color: #2563eb; background: #dbeafe; }
.secure-link-signer { top: 74px; right: 0; }
.secure-link-signer .secure-node-icon { color: #7c3aed; background: #ede9fe; }
.secure-link-verified { bottom: 44px; left: 27px; }
.secure-link-verified .secure-node-icon { color: #059669; background: #d1fae5; }

/* 三个流程节点持续保持轻微动态，强调文件、签署与完整性校验的流转关系。 */
.secure-link-document {
  animation: secureNodeFloat 3.8s ease-in-out infinite;
}

.secure-link-signer {
  animation: secureNodeNudge 4.6s ease-in-out .5s infinite;
}

.secure-link-verified {
  animation: secureNodePulse 4.2s ease-in-out 1s infinite;
}

@keyframes secureNodeFloat {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(0, -6px, 0); }
}

@keyframes secureNodeNudge {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(5px, -3px, 0); }
}

@keyframes secureNodePulse {
  0%, 100% {
    transform: translate3d(0, 0, 0);
    box-shadow: 0 12px 28px rgba(51, 65, 85, .08);
  }
  50% {
    transform: translate3d(0, 4px, 0);
    box-shadow: 0 15px 32px rgba(5, 150, 105, .16);
  }
}

.secure-link-caption {
  position: absolute;
  right: 10px;
  bottom: 19px;
  color: #55728f;
  font-size: .72rem;
  font-weight: 600;
}

.secure-link-caption i { margin-right: 5px; color: #3b82f6; }

.showcase-card-container {
  position: relative;
  background: #ffffff;
  border-radius: 20px;
  border: 1px solid var(--border-color);
  box-shadow: 0 24px 48px -12px rgba(15, 23, 42, 0.12), 0 0 0 1px rgba(15, 23, 42, 0.03);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.showcase-card-container:hover {
  box-shadow: 0 30px 60px -15px rgba(22, 119, 255, 0.16), 0 0 0 1px rgba(22, 119, 255, 0.12);
  transform: translateY(-2px);
}

.showcase-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: var(--bg-body);
  border-bottom: 1px solid var(--border-color);
  gap: 12px;
}

.window-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.window-dots .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-red {
  background: #ff5f56;
}

.dot-yellow {
  background: #ffbd2e;
}

.dot-green {
  background: #27c93f;
}

.showcase-link-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  flex: 1;
  max-width: 290px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.showcase-link-pill svg,
.showcase-link-pill i {
  color: var(--color-success);
  flex-shrink: 0;
}

.showcase-ssl-badge {
  font-size: 0.65rem;
  font-weight: 600;
  color: #059669;
  background: #d1fae5;
  padding: 1px 6px;
  border-radius: 4px;
  margin-left: auto;
}

.showcase-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
  flex-shrink: 0;
}

.showcase-status .live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
}

.showcase-body {
  padding: 20px 22px;
  background: #fafbfc;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* 文档顶栏 */
.showcase-doc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  gap: 12px;
}

.doc-file-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.doc-icon-wrap {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--color-info-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.doc-text-meta {
  display: flex;
  flex-direction: column;
}

.doc-main-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-main);
}

.doc-sub-code {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.doc-sealed-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 8px;
  border-radius: 6px;
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #047857;
  font-size: 0.72rem;
  font-weight: 600;
  flex-shrink: 0;
}

/* 双方签署流转双卡 */
.showcase-sign-pipeline {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.pipeline-signer-box {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.signer-box-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.signer-box-name {
  font-size: 0.75rem;
  font-weight: 700;
  color: #334155;
}

.signer-verified-pill {
  font-size: 0.65rem;
  font-weight: 600;
  color: #059669;
  background: #d1fae5;
  padding: 1px 6px;
  border-radius: 4px;
}

.signer-canvas-area {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 68px;
}

.corporate-seal-graphic {
  width: 62px;
  height: 62px;
  border: 2px solid var(--color-danger);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--color-danger);
  font-size: 0.55rem;
  font-weight: 800;
  transform: rotate(-8deg);
  user-select: none;
  box-shadow: 0 0 0 1px rgba(239, 68, 68, 0.15);
}

.corporate-seal-graphic .star {
  font-size: 0.8rem;
  line-height: 1;
  margin-bottom: 1px;
}

.corporate-seal-graphic .seal-top {
  font-size: 0.52rem;
  letter-spacing: 0.5px;
}

.corporate-seal-graphic .seal-bot {
  font-size: 0.5rem;
  letter-spacing: 0.5px;
}

.handwritten-sign-svg {
  width: 130px;
  height: 46px;
  filter: drop-shadow(0 1px 2px rgba(29, 78, 216, 0.15));
}

.signer-box-footer {
  border-top: 1px dashed var(--bg-subtle);
  padding-top: 6px;
  margin-top: 6px;
  font-size: 0.68rem;
  color: var(--text-light);
  display: flex;
  flex-direction: column;
  line-height: 1.35;
}

/* 底部存证摘要与试玩入口 */
.showcase-bottom-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: linear-gradient(135deg, var(--color-info-light) 0%, #f0fdf4 100%);
  border: 1px solid #bfdbfe;
  border-radius: 10px;
  cursor: pointer;
  transition: var(--transition);
  gap: 10px;
}

.showcase-bottom-bar:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 14px rgba(22, 119, 255, 0.15);
  transform: translateY(-1px);
}

.bottom-bar-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.bottom-bar-icon {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--primary-gradient);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.bottom-bar-text {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.bottom-bar-text strong {
  font-size: 0.8125rem;
  color: var(--primary);
}

.bottom-bar-text span {
  font-size: 0.72rem;
  color: var(--primary);
}

.bottom-bar-action {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  background: #ffffff;
  border: 1px solid #93c5fd;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  white-space: nowrap;
  flex-shrink: 0;
  transition: var(--transition);
}

.showcase-bottom-bar:hover .bottom-bar-action {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

/* 悬浮微标 */
.showcase-float-chip {
  position: absolute;
  z-index: 10;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--border-color);
  box-shadow: 0 12px 28px -6px rgba(15, 23, 42, 0.12), 0 0 0 1px rgba(0, 0, 0, 0.02);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 10px;
  padding: 7px 11px;
  display: flex;
  align-items: center;
  gap: 8px;
  pointer-events: none;
  animation: floatMotion 4s infinite ease-in-out;
}

.chip-top-right {
  top: -14px;
  right: -12px;
  animation-delay: 0s;
}

.chip-bottom-left {
  bottom: -14px;
  left: -12px;
  animation-delay: 2s;
}

.chip-icon-box {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  background: #ecfdf5;
  color: #059669;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.chip-icon-box.blue {
  background: var(--color-info-light);
  color: var(--primary);
}

.chip-content {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.chip-title {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-main);
}

.chip-desc {
  font-size: 0.65rem;
  color: var(--text-muted);
}

.chip-tag {
  font-size: 0.65rem;
  font-weight: 600;
  padding: 1px 5px;
  border-radius: 4px;
  background: #f0fdf4;
  color: #16a34a;
  border: 1px solid #bbf7d0;
  margin-left: 2px;
}

.chip-tag.blue {
  background: var(--color-info-light);
  color: #2563eb;
  border-color: #bfdbfe;
}

/* ==========================================================================
       3.1 Hero 轮播切换增强组件 (Hero Carousel & Dynamic Banners)
       ========================================================================== */
.hero-carousel-container {
  position: relative;
  width: 100%;
}

.hero-slides-wrapper {
  display: grid;
  grid-template-areas: "hero-stack";
  position: relative;
  width: 100%;
}

.hero-slide {
  grid-area: hero-stack;
  width: 100%;
  opacity: 0;
  visibility: hidden;
  transform: translateY(18px);
  transition: opacity 0.45s ease, transform 0.45s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.45s;
  pointer-events: none;
  z-index: 1;
}

.hero-slide.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
  z-index: 2;
}

/* Hero 每次切换后的分层入场动效 */
.hero-slide.active .hero-badge-pill,
.hero-slide.active .hero-title,
.hero-slide.active .hero-desc,
.hero-slide.active .hero-cta-wrap,
.hero-slide.active .hero-trust-bar,
.hero-slide.active .hero-features-strip {
  animation: heroTextReveal 0.62s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.hero-slide.active .hero-badge-pill {
  animation: none;
}

.hero-slide.active .hero-title {
  animation-delay: 0.07s;
}

.hero-slide.active .hero-desc {
  animation-delay: 0.14s;
}

.hero-slide.active .hero-cta-wrap {
  animation-delay: 0.21s;
}

.hero-slide.active .hero-trust-bar {
  animation-delay: 0.28s;
}

.hero-slide.active .hero-features-strip {
  animation-delay: 0.35s;
}

.hero-slide.active .hero-showcase-wrap,
.hero-slide.active .contract-artwork,
.hero-slide.active .vault-artwork {
  animation: heroVisualReveal 0.8s 0.12s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.hero-slide.active .hero-features-strip .hero-feature-item {
  animation: heroTextReveal 0.45s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.hero-slide.active .hero-features-strip .hero-feature-item:nth-child(1) {
  animation-delay: 0.42s;
}

.hero-slide.active .hero-features-strip .hero-feature-item:nth-child(2) {
  animation-delay: 0.49s;
}

.hero-slide.active .hero-features-strip .hero-feature-item:nth-child(3) {
  animation-delay: 0.56s;
}

@keyframes heroTextReveal {
  from {
    opacity: 0;
    transform: translateY(16px);
  }

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

@keyframes heroVisualReveal {
  from {
    opacity: 0;
    transform: translateX(24px) scale(0.97);
  }

  to {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

/* 轮播底栏切换控制器 (Hero Carousel Bottom Control Bar) */
.hero-controls-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  margin-top: 28px;
  position: relative;
  z-index: 5;
}

.hero-indicators-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-indicator-tab {
  width: 8px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: #cbd5e1;
  cursor: pointer;
  transition: var(--transition);
  flex: 0 0 auto;
  font-size: 0;
}

.hero-indicator-tab:hover {
  background: #93c5fd;
  transform: scale(1.2);
}

.hero-indicator-tab.active {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
  transform: scale(1.15);
}

/* 左右翻页切换键 */
.hero-arrows-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-arrow-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: none;
  font-size: 0.8rem;
}

.hero-arrow-btn:hover {
  background: var(--primary);
  color: var(--text-white);
  border-color: var(--primary);
  transform: scale(1.05);
  box-shadow: 0 4px 10px rgba(22, 119, 255, 0.2);
}

/* Slide 2 & 3 看板专属组件样式 */
.seal-auth-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 6px;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  color: #1d4ed8;
  font-size: 0.72rem;
  font-weight: 600;
  flex-shrink: 0;
}

/* 存证时间轴微卡片 (Slide 3) */
.audit-timeline-mini {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px 12px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 10px;
}

.audit-timeline-step {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.75rem;
  position: relative;
}

.audit-timeline-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 18px;
  left: 7px;
  width: 2px;
  height: calc(100% - 10px);
  background: var(--border-color);
}

.audit-step-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-success);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.55rem;
  flex-shrink: 0;
  z-index: 1;
  margin-top: 1px;
}

.audit-step-dot.blue {
  background: var(--primary);
}

.audit-step-body {
  display: flex;
  flex-direction: column;
  line-height: 1.35;
}

.audit-step-time {
  font-size: 0.68rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color: var(--text-light);
}

.audit-step-title {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-main);
}

.audit-step-meta {
  font-size: 0.68rem;
  color: var(--text-muted);
}

.hash-verify-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 12px;
  background: var(--bg-subtle);
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.hash-verify-text {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.72rem;
  color: var(--text-secondary);
  word-break: break-all;
}

.hash-match-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--color-success-bg);
  border: 1px solid var(--color-success-border);
  color: var(--color-success-text);
  font-size: 0.7rem;
  font-weight: 700;
  white-space: nowrap;
  flex-shrink: 0;
}

/* Slide 2：多方会签审批看板 */
.approval-dashboard {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.approval-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border: 1px solid #bfdbfe;
  border-radius: 12px;
  background: linear-gradient(135deg, #eff6ff 0%, #f8fbff 100%);
}

.approval-summary-main {
  display: flex;
  align-items: center;
  gap: 10px;
}

.approval-summary-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--primary);
  color: #ffffff;
  font-size: 0.95rem;
  box-shadow: 0 6px 12px rgba(22, 119, 255, 0.2);
}

.approval-summary-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.approval-summary-copy strong {
  color: var(--text-main);
  font-size: 0.85rem;
}

.approval-summary-copy span {
  color: var(--text-muted);
  font-size: 0.68rem;
}

.approval-summary-count {
  color: var(--primary);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.approval-flow {
  display: grid;
  grid-template-columns: 1fr 28px 1fr 28px 1fr;
  align-items: center;
  padding: 14px 12px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 12px;
}

.approval-flow-line {
  height: 1px;
  background: #93c5fd;
  position: relative;
}

.approval-flow-line::after {
  content: "";
  position: absolute;
  right: 0;
  top: -3px;
  width: 6px;
  height: 6px;
  border-top: 1px solid #60a5fa;
  border-right: 1px solid #60a5fa;
  transform: rotate(45deg);
}

.approval-flow-node {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  text-align: center;
}

.approval-flow-node-icon {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #ffffff;
  background: var(--color-success);
  box-shadow: 0 0 0 4px #dcfce7;
  font-size: 0.72rem;
}

.approval-flow-node.pending .approval-flow-node-icon {
  color: var(--primary);
  background: #dbeafe;
  box-shadow: 0 0 0 4px #eff6ff;
}

.approval-flow-node strong {
  color: var(--text-main);
  font-size: 0.68rem;
  white-space: nowrap;
}

.approval-flow-node span {
  color: var(--text-muted);
  font-size: 0.62rem;
  white-space: nowrap;
}

.approval-permission-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.approval-permission-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 9px;
  min-width: 0;
}

.approval-permission-item i {
  color: var(--primary);
  font-size: 0.75rem;
}

.approval-permission-item span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-secondary);
  font-size: 0.68rem;
}

/* Slide 3：数字存证核验看板 */
.evidence-dashboard {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.evidence-verification-hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: linear-gradient(135deg, #f0fdf4 0%, #ffffff 100%);
  border: 1px solid #bbf7d0;
  border-radius: 12px;
}

.evidence-verification-copy {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.evidence-verification-copy strong {
  color: #166534;
  font-size: 0.95rem;
}

.evidence-verification-copy span {
  color: var(--text-muted);
  font-size: 0.68rem;
}

.evidence-score-ring {
  width: 58px;
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: conic-gradient(var(--color-success) 0deg 360deg, #dcfce7 360deg);
  position: relative;
  flex-shrink: 0;
}

.evidence-score-ring::after {
  content: "";
  position: absolute;
  inset: 5px;
  border-radius: 50%;
  background: #ffffff;
}

.evidence-score-ring span {
  position: relative;
  z-index: 1;
  color: #15803d;
  font-size: 0.8rem;
  font-weight: 800;
}

.evidence-fingerprint {
  padding: 11px 12px;
  background: #0f172a;
  border-radius: 10px;
  color: #bfdbfe;
}

.evidence-fingerprint-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
  color: #94a3b8;
  font-size: 0.65rem;
}

.evidence-fingerprint-head span:last-child {
  color: #86efac;
}

.evidence-fingerprint-code {
  display: block;
  overflow: hidden;
  color: #e0f2fe;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.67rem;
  line-height: 1.5;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.evidence-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.evidence-metric {
  padding: 10px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 9px;
}

.evidence-metric-label {
  display: block;
  margin-bottom: 4px;
  color: var(--text-muted);
  font-size: 0.65rem;
}

.evidence-metric-value {
  color: var(--text-main);
  font-size: 0.82rem;
  font-weight: 800;
}

.evidence-metric-value.success {
  color: #16a34a;
}

/* Slide 2 / 3：主视觉展示模式，弱化后台面板感 */
.hero-slide[data-index="1"] .hero-showcase-wrap,
.hero-slide[data-index="2"] .hero-showcase-wrap {
  min-height: 390px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-slide[data-index="1"] .hero-showcase-wrap::before,
.hero-slide[data-index="2"] .hero-showcase-wrap::before {
  content: "";
  position: absolute;
  width: 330px;
  height: 330px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(219, 234, 254, 0.9) 0%, rgba(239, 246, 255, 0.45) 46%, rgba(255, 255, 255, 0) 72%);
  pointer-events: none;
}

.hero-slide[data-index="2"] .hero-showcase-wrap::before {
  background: radial-gradient(circle, rgba(220, 252, 231, 0.9) 0%, rgba(240, 253, 244, 0.5) 46%, rgba(255, 255, 255, 0) 72%);
}

.hero-slide[data-index="1"] .showcase-card-container,
.hero-slide[data-index="2"] .showcase-card-container {
  width: 100%;
  background: transparent;
  border: 0;
  box-shadow: none;
  overflow: visible;
  z-index: 1;
}

.hero-slide[data-index="1"] .showcase-card-container:hover,
.hero-slide[data-index="2"] .showcase-card-container:hover {
  box-shadow: none;
  transform: none;
}

.hero-slide[data-index="1"] .showcase-topbar,
.hero-slide[data-index="2"] .showcase-topbar,
.hero-slide[data-index="1"] .showcase-doc-header,
.hero-slide[data-index="2"] .showcase-doc-header {
  display: none;
}

.hero-slide[data-index="1"] .showcase-body,
.hero-slide[data-index="2"] .showcase-body {
  padding: 0;
  background: transparent;
  gap: 20px;
}

.hero-slide[data-index="1"] .showcase-sign-pipeline {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 58px;
  min-height: 250px;
}

.hero-slide[data-index="1"] .showcase-sign-pipeline::before {
  content: "";
  position: absolute;
  left: 18%;
  right: 18%;
  top: 50%;
  border-top: 1px dashed #93c5fd;
  z-index: -1;
}

.hero-slide[data-index="1"] .pipeline-signer-box {
  width: 150px;
  min-height: 160px;
  align-items: center;
  justify-content: center;
  padding: 0;
  background: transparent;
  border: 0;
}

.hero-slide[data-index="1"] .signer-box-head {
  flex-direction: column;
  gap: 7px;
  margin-bottom: 12px;
  text-align: center;
}

.hero-slide[data-index="1"] .signer-box-name {
  color: var(--text-main);
  font-size: 0.78rem;
}

.hero-slide[data-index="1"] .signer-canvas-area {
  height: 92px;
}

.hero-slide[data-index="1"] .corporate-seal-graphic {
  width: 92px;
  height: 92px;
  font-size: 0.7rem;
  box-shadow: 0 0 0 8px rgba(239, 68, 68, 0.06), 0 12px 24px rgba(239, 68, 68, 0.12);
}

.hero-slide[data-index="1"] .corporate-seal-graphic .seal-top {
  font-size: 0.62rem;
}

.hero-slide[data-index="1"] .corporate-seal-graphic .seal-bot {
  font-size: 0.58rem;
}

.hero-slide[data-index="1"] .handwritten-sign-svg {
  width: 150px;
  height: 58px;
}

.hero-slide[data-index="1"] .signer-box-footer {
  align-items: center;
  border: 0;
  margin-top: 8px;
  padding: 0;
  text-align: center;
  font-size: 0.65rem;
}

.hero-slide[data-index="1"] .showcase-bottom-bar,
.hero-slide[data-index="2"] .showcase-bottom-bar {
  align-self: center;
  width: auto;
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.hero-slide[data-index="1"] .bottom-bar-text span,
.hero-slide[data-index="2"] .bottom-bar-text span {
  display: none;
}

.hero-slide[data-index="1"] .bottom-bar-text strong,
.hero-slide[data-index="2"] .bottom-bar-text strong {
  font-size: 0.72rem;
}

.hero-slide[data-index="1"] .bottom-bar-icon,
.hero-slide[data-index="2"] .bottom-bar-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
}

.hero-slide[data-index="1"] .bottom-bar-action,
.hero-slide[data-index="2"] .bottom-bar-action {
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 0.68rem;
}

.hero-slide[data-index="2"] .evidence-dashboard {
  position: relative;
  align-items: center;
  gap: 18px;
  min-height: 290px;
}

.hero-slide[data-index="2"] .evidence-verification-hero {
  position: relative;
  display: flex;
  flex-direction: column-reverse;
  gap: 12px;
  padding: 0;
  background: transparent;
  border: 0;
  text-align: center;
}

.hero-slide[data-index="2"] .evidence-score-ring {
  width: 142px;
  height: 142px;
  box-shadow: 0 14px 30px rgba(22, 163, 74, 0.1);
}

.hero-slide[data-index="2"] .evidence-score-ring::after {
  inset: 9px;
  background: rgba(255, 255, 255, 0.95);
}

.hero-slide[data-index="2"] .evidence-score-ring span {
  font-size: 1.25rem;
}

.hero-slide[data-index="2"] .evidence-verification-copy strong {
  font-size: 0.95rem;
}

.hero-slide[data-index="2"] .evidence-fingerprint {
  width: min(100%, 390px);
  padding: 0;
  background: transparent;
  text-align: center;
}

.hero-slide[data-index="2"] .evidence-fingerprint-head {
  justify-content: center;
  gap: 12px;
  margin-bottom: 5px;
}

.hero-slide[data-index="2"] .evidence-fingerprint-code {
  color: #64748b;
  font-size: 0.62rem;
}

.hero-slide[data-index="2"] .evidence-metrics {
  width: min(100%, 390px);
  gap: 22px;
  padding-top: 10px;
  border-top: 1px solid rgba(148, 163, 184, 0.35);
  background: transparent;
  text-align: center;
}

.hero-slide[data-index="2"] .evidence-metric {
  padding: 0;
  background: transparent;
  border: 0;
}

/* Slide 2：合同、公章与签名的插画式主视觉 */
.contract-artwork,
.vault-artwork {
  position: relative;
  width: 100%;
  min-height: 400px;
  overflow: hidden;
  isolation: isolate;
}

.contract-artwork::before,
.vault-artwork::before {
  content: "";
  position: absolute;
  inset: 28px 18px;
  border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(219, 234, 254, 0.8), rgba(239, 246, 255, 0.28) 48%, transparent 72%);
  z-index: -2;
}

.contract-orbit,
.vault-orbit {
  position: absolute;
  left: 50%;
  top: 50%;
  border: 1px dashed rgba(96, 165, 250, 0.45);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  z-index: -1;
}

.orbit-one,
.vault-orbit-one {
  width: 315px;
  height: 315px;
}

.orbit-two,
.vault-orbit-two {
  width: 420px;
  height: 250px;
  border-color: rgba(147, 197, 253, 0.4);
  transform: translate(-50%, -50%) rotate(-18deg);
}

.contract-sheet {
  position: absolute;
  top: 34px;
  left: 50%;
  width: 230px;
  height: 304px;
  padding: 24px 22px;
  background: #ffffff;
  border-radius: 5px 9px 8px 5px;
  box-shadow: 0 24px 46px rgba(30, 64, 175, 0.16), 0 2px 4px rgba(15, 23, 42, 0.05);
  transform: translateX(-50%) rotate(-7deg);
}

.contract-sheet::after {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  border-top: 28px solid #dbeafe;
  border-left: 28px solid transparent;
}

.contract-sheet-head {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 800;
}

.contract-sheet-head i {
  color: var(--primary);
  font-size: 1rem;
}

.contract-sheet-head em {
  margin-left: auto;
  padding: 3px 6px;
  border-radius: 999px;
  background: #dcfce7;
  color: #15803d;
  font-size: 0.57rem;
  font-style: normal;
}

.contract-sheet-lines {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 30px;
}

.contract-sheet-lines span {
  height: 5px;
  border-radius: 999px;
  background: #e2e8f0;
}

.contract-sheet-lines span:nth-child(2),
.contract-sheet-lines span:nth-child(4) {
  width: 82%;
}

.contract-sheet-lines span:nth-child(3) {
  width: 64%;
}

.contract-signature {
  position: absolute;
  left: 22px;
  bottom: 23px;
  color: #2563eb;
}

.contract-signature span {
  display: block;
  margin-bottom: 1px;
  color: #94a3b8;
  font-size: 0.58rem;
}

.contract-signature svg {
  display: block;
  width: 128px;
  height: 45px;
}

.contract-seal {
  position: absolute;
  right: -31px;
  bottom: 28px;
  width: 91px;
  height: 91px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 3px solid #ef4444;
  border-radius: 50%;
  color: #ef4444;
  background: rgba(255, 255, 255, 0.45);
  box-shadow: 0 0 0 6px rgba(254, 226, 226, 0.72);
  transform: rotate(-13deg);
}

.contract-seal b {
  font-size: 1.1rem;
  line-height: 1;
}

.contract-seal span {
  font-size: 0.54rem;
  font-weight: 800;
}

.contract-seal small {
  font-size: 0.48rem;
}

.contract-collaborator,
.vault-node {
  position: absolute;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(191, 219, 254, 0.9);
  color: var(--primary);
  box-shadow: 0 8px 20px rgba(30, 64, 175, 0.1);
}

.collaborator-one {
  top: 50px;
  left: 17%;
  animation: collaboratorDriftOne 4s ease-in-out infinite;
}

.collaborator-two {
  top: 150px;
  right: 12%;
  color: #7c3aed;
  animation: collaboratorDriftTwo 4.8s ease-in-out .7s infinite;
}

.collaborator-three {
  bottom: 78px;
  left: 12%;
  color: #059669;
  animation: collaboratorPulse 4.3s ease-in-out 1.3s infinite;
}

@keyframes collaboratorDriftOne {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(-3px, -7px, 0); }
}

@keyframes collaboratorDriftTwo {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(5px, 4px, 0); }
}

@keyframes collaboratorPulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 8px 20px rgba(30, 64, 175, 0.1);
  }
  50% {
    transform: scale(1.08);
    box-shadow: 0 11px 24px rgba(5, 150, 105, 0.22);
  }
}

.contract-caption,
.vault-caption {
  position: absolute;
  left: 50%;
  bottom: 17px;
  transform: translateX(-50%);
  color: #475569;
  font-size: 0.74rem;
  font-weight: 700;
  white-space: nowrap;
}

.contract-caption i,
.vault-caption i {
  color: #16a34a;
}

/* Slide 3：数字保险箱与存证节点插画 */
.vault-artwork::before {
  background: radial-gradient(ellipse at center, rgba(220, 252, 231, 0.9), rgba(240, 253, 244, 0.35) 48%, transparent 72%);
}

.vault-orbit {
  border-color: rgba(74, 222, 128, 0.42);
}

.vault-orbit-two {
  border-color: rgba(134, 239, 172, 0.46);
}

.vault-core {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 140px;
  height: 140px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border-radius: 50%;
  color: #ffffff;
  background: linear-gradient(145deg, #16a34a, #059669);
  box-shadow: 0 22px 38px rgba(22, 163, 74, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.35);
  transform: translate(-50%, -50%);
}

.vault-core::before {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
}

.vault-core i {
  font-size: 2.3rem;
  z-index: 1;
}

.vault-core span {
  font-size: 0.75rem;
  font-weight: 800;
  z-index: 1;
}

.vault-node {
  border-color: #bbf7d0;
  color: #16a34a;
}

.vault-node-one {
  top: 58px;
  left: 19%;
  animation: vaultNodeFloat 3.9s ease-in-out .2s infinite;
}

.vault-node-two {
  top: 100px;
  right: 15%;
  animation: vaultNodeSweep 5.1s ease-in-out .8s infinite;
}

.vault-node-three {
  bottom: 75px;
  left: 18%;
  animation: vaultNodePulse 4.4s ease-in-out 1.5s infinite;
}

@keyframes vaultNodeFloat {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(2px, -7px, 0); }
}

@keyframes vaultNodeSweep {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(-6px, 3px, 0); }
}

@keyframes vaultNodePulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 8px 20px rgba(30, 64, 175, 0.1);
  }
  50% {
    transform: scale(1.07);
    box-shadow: 0 11px 25px rgba(22, 163, 74, 0.24);
  }
}

.vault-data-line {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 110px;
  border-top: 1px dashed rgba(74, 222, 128, 0.65);
  transform-origin: left center;
  z-index: -1;
}

.line-one {
  transform: rotate(145deg);
}

.line-two {
  transform: rotate(-28deg);
}

.vault-hash {
  position: absolute;
  right: 7%;
  bottom: 92px;
  display: flex;
  align-items: center;
  gap: 5px;
  color: #047857;
  font-size: 0.7rem;
  font-weight: 700;
}

.vault-hash i {
  color: #16a34a;
}

/* ==========================================================================
   2. 核心内容板块 (Content Sections)
   ========================================================================== */
/* ==========================================================================
       4. 交互式在线签署演示体验卡 (Interactive Live Signing Demo)
       ========================================================================== */
.hero-demo-card {
  position: relative;
  background: #ffffff;
  border-radius: 18px;
  border: 1px solid var(--border-color);
  box-shadow: 0 20px 40px -15px rgba(15, 23, 42, 0.08), 0 0 0 1px rgba(15, 23, 42, 0.03);
  overflow: hidden;
  transition: var(--transition);
}

.demo-window-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 16px;
  background: var(--bg-body);
  border-bottom: 1px solid var(--border-color);
  gap: 12px;
}

.window-dots {
  display: flex;
  gap: 6px;
  align-items: center;
  flex-shrink: 0;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-red {
  background: var(--color-danger);
}

.dot-yellow {
  background: #f59e0b;
}

.dot-green {
  background: var(--color-success);
}

.window-address-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 3px 10px;
  font-size: 0.72rem;
  color: var(--text-secondary);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  max-width: 250px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

.window-address-bar svg,
.window-address-bar i {
  color: var(--color-success);
  flex-shrink: 0;
}

.window-mode-switch {
  display: flex;
  background: var(--border-color);
  padding: 2px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  flex-shrink: 0;
}

.mode-tab-btn {
  padding: 4px 12px;
  border-radius: var(--radius-full);
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--text-muted);
  font-weight: 500;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 4px;
}

.mode-tab-btn.active {
  background: #ffffff;
  color: var(--primary);
  box-shadow: var(--shadow-sm);
  font-weight: 600;
}

/* 拟真流程步骤条 Stepper */
.demo-workflow-stepper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #fafbfc;
  border-bottom: 1px solid var(--bg-subtle);
  padding: 8px 16px;
  font-size: 0.72rem;
  color: var(--text-muted);
}

.stepper-step {
  display: flex;
  align-items: center;
  gap: 5px;
  font-weight: 500;
}

.stepper-step.done {
  color: var(--color-success);
  font-weight: 600;
}

.stepper-step.active {
  color: var(--primary);
  font-weight: 600;
}

.stepper-sep {
  color: var(--border-dashed);
  font-size: 0.7rem;
}

.demo-window-body {
  padding: 16px;
  position: relative;
  background: var(--bg-body);
}

/* 电脑端文档模拟视图 */
.doc-preview-wrapper {
  display: block;
  transition: var(--transition);
}

.doc-paper {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 16px 18px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
  position: relative;
}

.doc-badge-status {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 3px 9px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 600;
  background: #fef3c7;
  color: #b45309;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: var(--transition);
}

.doc-badge-status.signed {
  background: #dcfce7;
  color: #15803d;
}

.doc-badge-status #badgeDot {
  font-size: 0.6rem;
  line-height: 1;
}

.doc-header-sim {
  border-bottom: 1px solid var(--bg-subtle);
  padding-bottom: 10px;
  margin-bottom: 10px;
}

.doc-title-sim {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

.doc-meta-sim {
  display: flex;
  gap: 12px;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
  flex-wrap: wrap;
}

.doc-body-sim {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.doc-clause-box {
  background: var(--bg-body);
  padding: 8px 10px;
  border-radius: 6px;
  margin: 8px 0;
  border-left: 3px solid var(--primary);
  font-size: 0.78rem;
  line-height: 1.5;
}

/* 签名位卡片容器 */
.doc-sign-slots {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--border-color);
}

.sign-slot-box {
  border: 1px dashed var(--border-dashed);
  border-radius: 8px;
  padding: 10px;
  background: #fafafa;
  text-align: center;
  position: relative;
  min-height: 90px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.sign-slot-box.filled {
  border-style: solid;
  border-color: #93c5fd;
  background: var(--color-info-light);
}

/* 真实红印章效果 */
.slot-seal-stamp {
  width: 76px;
  height: 76px;
  border: 2px solid var(--color-danger);
  border-radius: 50%;
  color: var(--color-danger);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 0.52rem;
  font-weight: 700;
  transform: rotate(-10deg);
  box-shadow: inset 0 0 0 1.5px var(--color-danger);
  letter-spacing: 0.5px;
  line-height: 1.25;
  position: relative;
  user-select: none;
}

.slot-seal-stamp .seal-star {
  font-size: 0.85rem;
  color: var(--color-danger);
  line-height: 1;
  margin-bottom: 2px;
}

.slot-signature-img {
  max-height: 50px;
  max-width: 140px;
  object-fit: contain;
}

/* 在线手写板弹窗 / 交互组件 */
.interactive-sign-pad-box {
  margin-top: 12px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: #ffffff;
  padding: 10px 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
}

.sign-pad-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.sign-canvas-area {
  width: 100%;
  height: 96px;
  background: #fdfdfd;
  border: 1px dashed var(--text-light);
  border-radius: 6px;
  cursor: crosshair;
  touch-action: none;
  display: block;
}

.sign-pad-tools {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
  gap: 8px;
}

/* 手机端极速签署模拟模式 */
.phone-mockup-wrapper {
  display: none;
  width: 290px;
  margin: 0 auto;
  background: #ffffff;
  border-radius: 36px;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.14);
  border: 8px solid var(--text-main);
  overflow: hidden;
  position: relative;
}

.phone-notch {
  width: 110px;
  height: 18px;
  background: var(--text-main);
  margin: 0 auto;
  border-bottom-left-radius: 12px;
  border-bottom-right-radius: 12px;
}

.phone-screen {
  padding: 14px;
  min-height: 440px;
  background: var(--bg-body);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.phone-doc-card {
  background: #ffffff;
  border-radius: 10px;
  padding: 12px;
  font-size: 0.78rem;
  border: 1px solid var(--border-color);
}

.phone-sign-btn {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  background: var(--primary-gradient);
  color: white;
  border: none;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
}

/* ==========================================================================
       5. 传统对比与核心优势 (Comparison Matrix)
       ========================================================================== */


.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 40px;
}

.section-tag {
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
  letter-spacing: -0.5px;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-top: 14px;
  line-height: 1.6;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* ==========================================================================
       5. 传统对比与核心优势 - 现代极简方案对比卡 (Plan Comparison Cards)
       ========================================================================== */
.compare-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
  margin-top: 24px;
}

/* 方案对比：统一维度横向阅读，避免三张重复的长列表卡片 */
.solution-comparison-scroll {
  margin-top: 36px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.solution-comparison {
  min-width: 780px;
  overflow: hidden;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.solution-compare-head,
.solution-compare-row,
.solution-compare-cta {
  display: grid;
  grid-template-columns: 140px repeat(3, minmax(180px, 1fr));
}

.solution-compare-head {
  align-items: end;
  border-bottom: 1px solid var(--border-color);
}

.solution-compare-head>div,
.solution-compare-row>div,
.solution-compare-row>strong,
.solution-compare-cta>div {
  padding: 15px 18px;
}

.solution-compare-head>div:not(:first-child),
.solution-compare-row>div {
  border-left: 1px solid rgba(226, 232, 240, 0.72);
}

.solution-compare-empty {
  color: var(--text-light);
  font-size: 0.72rem;
  font-weight: 700;
}

.solution-plan-kicker {
  display: block;
  margin-bottom: 8px;
  color: var(--text-muted);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.solution-plan-title {
  display: block;
  color: var(--text-main);
  font-size: 1rem;
  font-weight: 800;
}

.solution-plan-note {
  display: block;
  margin-top: 5px;
  color: var(--text-muted);
  font-size: 0.7rem;
  line-height: 1.4;
}

.solution-compare-head .is-featured,
.solution-compare-row .is-featured,
.solution-compare-cta .is-featured {
  background: #f0f7ff;
}

.solution-compare-head .is-featured {
  position: relative;
  padding-top: 27px;
}

.solution-compare-head .is-featured::before {
  content: "推荐 · 日常商务首选";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: 5px 12px;
  background: var(--primary);
  color: #ffffff;
  font-size: 0.64rem;
  font-weight: 800;
  text-align: center;
  letter-spacing: 0.04em;
}

.solution-compare-row {
  min-height: 62px;
  border-bottom: 1px solid rgba(226, 232, 240, 0.72);
  align-items: center;
}

.solution-compare-row:last-of-type {
  border-bottom: 0;
}

.solution-compare-row>strong {
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 800;
}

.solution-compare-row>div {
  color: var(--text-secondary);
  font-size: 0.76rem;
  line-height: 1.4;
}

.solution-compare-row i {
  margin-right: 6px;
  font-size: 0.72rem;
}

.solution-compare-row .is-muted i {
  color: #94a3b8;
}

.solution-compare-row .is-warning i {
  color: #d97706;
}

.solution-compare-row .is-featured {
  color: var(--primary);
  font-weight: 700;
}

.solution-compare-row .is-featured i {
  color: #1677ff;
}

.solution-compare-cta>div {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.solution-compare-cta .solution-fit {
  color: var(--text-muted);
  font-size: 0.7rem;
  line-height: 1.4;
  text-align: center;
}

.solution-compare-cta .btn {
  width: 100%;
  justify-content: center;
}

.legacy-compare-grid {
  display: none;
}

/* 签署方式选择器：以关键体验而非密集参数做决策 */
.solution-comparison-scroll {
  display: none;
}

.signing-choice-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 34px;
  align-items: stretch;
}

.signing-choice-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 400px;
  padding: 28px;
  overflow: hidden;
  border: 1px solid #e2e8f0;
  border-radius: 20px;
  background: #ffffff;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.signing-choice-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 35px -20px rgba(15, 23, 42, 0.22);
}

.signing-choice-card::after {
  content: "";
  position: absolute;
  right: -42px;
  bottom: -58px;
  width: 190px;
  height: 190px;
  border-radius: 50%;
  background: #f1f5f9;
  z-index: 0;
}

.choice-heavy::after {
  background: #fff7ed;
}

.signing-choice-card>* {
  position: relative;
  z-index: 1;
}

.choice-featured {
  border-color: unset;
  color: #ffffff;
  background: linear-gradient(145deg, #1677ff 0%, #2458d3 64%, #1e40af 100%);
  box-shadow: 0 22px 42px -20px rgba(22, 119, 255, 0.55);
}

.choice-featured::before {
  content: "推荐 · 日常商务首选";
  position: absolute;
  top: 0;
  right: -2px;
  padding: 7px 14px;
  border-radius: 0 20px 0 14px;
  background: #fbbf24;
  color: #78350f;
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  z-index: 2;
}

.choice-featured::after {
  width: 240px;
  height: 240px;
  right: -70px;
  bottom: -85px;
  background: rgba(255, 255, 255, 0.09);
}

.choice-icon {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  border-radius: 14px;
  background: #f1f5f9;
  color: #64748b;
  font-size: 1.15rem;
}

.choice-heavy .choice-icon {
  background: #fff7ed;
  color: #f97316;
}

.choice-featured .choice-icon {
  background: rgba(255, 255, 255, 0.16);
  color: #ffffff;
}

.choice-eyebrow {
  margin-bottom: 7px;
  color: #94a3b8;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.07em;
}

.choice-featured .choice-eyebrow {
  color: #bfdbfe;
}

.choice-title {
  margin: 0;
  color: var(--text-main);
  font-size: 1.25rem;
  line-height: 1.2;
}

.choice-featured .choice-title {
  color: #ffffff;
}

.choice-metric {
  display: flex;
  align-items: baseline;
  gap: 7px;
  margin: 22px 0 8px;
}

.choice-metric strong {
  color: #334155;
  font-size: 2.2rem;
  line-height: 1;
  letter-spacing: -0.07em;
}

.choice-metric span {
  color: #94a3b8;
  font-size: 0.74rem;
  font-weight: 700;
}

.choice-featured .choice-metric strong,
.choice-featured .choice-metric span {
  color: #ffffff;
}

.choice-description {
  min-height: 40px;
  margin: 0 0 22px;
  color: #64748b;
  font-size: 0.8rem;
  line-height: 1.55;
}

.choice-featured .choice-description {
  color: #dbeafe;
}

.choice-points {
  display: flex;
  flex-direction: column;
  gap: 11px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.choice-points li {
  display: flex;
  gap: 9px;
  color: #475569;
  font-size: 0.76rem;
  line-height: 1.35;
}

.choice-points i {
  width: 16px;
  color: #94a3b8;
  text-align: center;
}

.choice-heavy .choice-points i {
  color: #f97316;
}

.choice-featured .choice-points li {
  color: #eff6ff;
}

.choice-featured .choice-points i {
  color: #93c5fd;
}

.choice-footer {
  margin-top: auto;
  padding-top: 22px;
  color: #64748b;
  font-size: 0.7rem;
  font-weight: 700;
}

.choice-featured .choice-footer {
  color: #dbeafe;
}

.choice-footer .btn {
  width: 100%;
  justify-content: center;
}

.choice-featured .btn-compare-action {
  background: #ffffff;
  border: 1px solid #ffffff;
  color: #1d4ed8;
  box-shadow: none;
}

.choice-featured .btn-compare-action:hover {
  background: #eff6ff;
  color: #1d4ed8;
  transform: translateY(-1px);
}

.compare-plan-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 18px;
  padding: 32px 22px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.04);
}

.compare-plan-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px -8px rgba(15, 23, 42, 0.08);
  border-color: var(--border-dashed);
}

.compare-plan-card.highlight {
  border: 2px solid var(--primary);
  background: linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
  box-shadow: 0 20px 48px -12px rgba(22, 119, 255, 0.18), 0 0 0 1px rgba(22, 119, 255, 0.1);
  transform: translateY(-6px);
}

.compare-plan-card.highlight:hover {
  transform: translateY(-8px);
  box-shadow: 0 26px 56px -12px rgba(22, 119, 255, 0.28);
}

.plan-top-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary-gradient);
  color: #ffffff;
  padding: 4px 16px;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px rgba(22, 119, 255, 0.35);
  white-space: nowrap;
}

.plan-header {
  padding-bottom: 18px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--bg-subtle);
  text-align: center;
}

.compare-plan-card.highlight .plan-header {
  border-bottom-color: #e0f2fe;
}

.plan-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 9999px;
  margin-bottom: 8px;
}

.plan-tag.muted {
  background: var(--bg-subtle);
  color: var(--text-muted);
}

.plan-tag.primary {
  background: var(--color-info-light);
  color: var(--primary);
  border: 1px solid #dbeafe;
}

.plan-tag.warning {
  background: #fef3c7;
  color: #b45309;
  border: 1px solid #fde68a;
}

.plan-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.2px;
}

.plan-sub {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 4px;
  line-height: 1.45;
}

.plan-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 9px;
  flex: 1;
  margin-bottom: 20px;
  padding: 0;
}

.plan-feature-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 10px;
  background: var(--bg-body);
  border: 1px solid var(--bg-subtle);
  transition: all 0.2s ease;
  min-height: 46px;
}

.compare-plan-card.highlight .plan-feature-row {
  background: #f0f7ff;
  border: 1px solid #e0f2fe;
}

.compare-plan-card.highlight .plan-feature-row:hover {
  background: #e4f2ff;
  border-color: #bae0ff;
}

.feature-tag {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 6px;
  flex-shrink: 0;
  white-space: nowrap;
}

.feature-tag.tag-gray {
  background: var(--border-color);
  color: var(--text-secondary);
}

.feature-tag.tag-blue {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 2px 6px rgba(22, 119, 255, 0.25);
}

.feature-tag.tag-amber {
  background: #fef3c7;
  color: #92400e;
  border: 1px solid #fde68a;
}

.feature-text {
  font-size: 0.835rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  line-height: 1.4;
  color: var(--text-secondary);
}

.feature-text.highlight {
  color: var(--text-main);
  font-weight: 600;
}

.status-icon {
  font-weight: 700;
  font-size: 0.88rem;
  width: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.status-icon.neg {
  color: var(--color-danger);
}

.status-icon.pos {
  color: var(--primary);
}

.status-icon.warn {
  color: #d97706;
}

.plan-action-box {
  margin-top: auto;
  padding-top: 10px;
}

.plan-status-note {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 10px 12px;
  background: var(--bg-body);
  border-radius: 8px;
  border: 1px dashed var(--border-dashed);
  line-height: 1.4;
}

/* ==========================================================================
       6. 核心产品特性 Bento 网格 (Bento Box Features)
       ========================================================================== */
.bento,
.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.bento-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 26px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.bento-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 36px -8px rgba(15, 23, 42, 0.08);
  border-color: rgba(22, 119, 255, 0.35);
}

.bento-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary-gradient);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.bento-card:hover::before {
  opacity: 1;
}

.bento-card.wide {
  grid-column: span 2;
}

.bento-icon,
.bento-icon-wrap {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  background: var(--color-info-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  flex-shrink: 0;
}

.bento-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.bento-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.bento-tag,
.bento-badge-tag {
  margin-top: auto;
  padding-top: 16px;
}

.bento-tag span,
.bento-badge-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--color-info-light);
  padding: 4px 10px;
  border-radius: 6px;
}

/* 宽卡片内的分享演示插画 */
.share-mock {
  margin-top: 20px;
  background: var(--bg-body);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
}

.bubble {
  max-width: 92%;
  padding: 10px 13px;
  border-radius: 14px;
  font-size: 0.8125rem;
  line-height: 1.6;
  margin-bottom: 10px;
}

.bubble.me {
  background: var(--primary-gradient);
  color: #fff;
  border-bottom-right-radius: 4px;
  margin-left: auto;
}

.bubble.them {
  background: #fff;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-bottom-left-radius: 4px;
}

.link-card {
  margin-top: 8px;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 8px;
  padding: 7px 10px;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  gap: 7px;
  color: #ffffff;
}

.qr-box {
  width: 92px;
  height: 92px;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

/* ==========================================================================
       7. 签署流程极简 4 步 (How It Works)
       ========================================================================== */
.steps-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.steps-container::after {
  content: '';
  position: absolute;
  top: 40px;
  left: 12%;
  right: 12%;
  height: 2px;
  border-top: 2px dashed var(--border-dashed);
  z-index: 1;
}

.step-box {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  border: 1px solid var(--border-color);
  text-align: center;
  position: relative;
  z-index: 2;
  transition: var(--transition);
}

.step-box:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.step-num-bubble {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--primary-gradient);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 800;
  margin: 0 auto 18px;
  box-shadow: 0 6px 16px rgba(22, 119, 255, 0.3);
}

.step-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.step-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
       8. 安全合规与电子数据留痕专区 (Security & Integrity Guarantee)
       ========================================================================== */
.security-section {
  background: var(--text-main);
  color: var(--bg-body);
  padding: 64px 40px;
  border-radius: var(--radius-xl);
}

.security-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 36px;
}

.security-header .section-title {
  color: #ffffff;
}

.security-header .section-subtitle {
  color: var(--text-light);
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.security-card {
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.security-card:hover {
  background: rgba(30, 41, 59, 0.95);
  border-color: rgba(59, 130, 246, 0.5);
  transform: translateY(-4px);
}

.sec-icon-box {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(37, 99, 235, 0.2);
  color: #60a5fa;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.sec-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}

.sec-desc {
  font-size: 0.88rem;
  color: var(--border-dashed);
  line-height: 1.65;
}

.compliance-banner-box {
  margin-top: 28px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 0.88rem;
  color: #93c5fd;
}

.compliance-summary-note {
  color: #dbeafe;
}

.compliance-details {
  margin-top: 10px;
  color: #bfdbfe;
}

.compliance-details summary {
  cursor: pointer;
  color: #ffffff;
  font-weight: 600;
  width: fit-content;
}

.compliance-details summary:focus-visible {
  outline: 2px solid #93c5fd;
  outline-offset: 3px;
  border-radius: 2px;
}

.compliance-details p {
  margin-top: 8px;
  line-height: 1.7;
}

/* ==========================================================================
       9. 行业应用场景 (Use Cases)
       ========================================================================== */
.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.scenario-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.scenario-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.scenario-pill {
  font-size: 0.84rem;
  font-weight: 600;
  padding: 4px 10px;
  background: var(--bg-subtle);
  color: var(--text-secondary);
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 12px;
}

.scenario-name {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.scenario-points {
  list-style: none;
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.scenario-points li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.scenario-points li::before {
  content: '•';
  color: var(--primary);
  font-size: 1.2rem;
}



/* ==========================================================================
   4. 模拟器与弹窗辅助类 (Demo & Modal Utilities)
   ========================================================================== */
/* ==========================================================================
   首页专用微排版与模拟器工具样式 (Index Components & Simulator Helpers)
   ========================================================================== */
.badge-pill-security {
  background: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
  border-color: rgba(59, 130, 246, 0.3);
}

.btn-compare-action {
  width: 100%;
  justify-content: center;
  height: 42px;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(22, 119, 255, 0.25);
}

.fs-icon-bento {
  font-size: 1.35rem;
}

.fs-icon-step {
  font-size: 1.25rem;
}

.fs-icon-sec {
  font-size: 1.3rem;
}

.fs-icon-info {
  font-size: 1.3rem;
  flex-shrink: 0;
}

.fs-icon-cert {
  font-size: 1.25rem;
  color: var(--color-success);
}

.fs-icon-doc {
  font-size: 1.1rem;
  color: var(--primary);
}

.fs-icon-play {
  font-size: 0.85rem;
}

.scenario-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* 模拟签署看板与手写板 (Simulator Document & Canvas) */
.sign-slot-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.sign-slot-time {
  font-size: 0.72rem;
  color: var(--text-light);
  margin-top: 4px;
}

.slot-placeholder-text {
  font-size: 0.82rem;
  color: var(--primary);
  font-weight: 500;
}

.sign-slot-success {
  font-size: 0.72rem;
  color: var(--color-success);
  margin-top: 4px;
  display: none;
}

.sign-pad-hint {
  font-size: 0.75rem;
  color: var(--text-light);
}

.sign-pad-btn-group {
  display: flex;
  gap: 8px;
}

/* 模拟手机界面 (Phone Mockup Details) */
.phone-header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
}

.phone-verified-status {
  color: var(--color-success);
  font-weight: 500;
}

.phone-doc-title {
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 6px;
  color: var(--text-main);
}

.phone-doc-desc {
  color: var(--text-secondary);
  font-size: 0.8rem;
  line-height: 1.5;
}

.phone-doc-notice {
  margin-top: 10px;
  padding: 6px 8px;
  background: var(--color-info-light);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: var(--primary);
}

.phone-sign-wrap {
  text-align: center;
  padding: 10px 0;
}

.phone-sign-preview {
  height: 60px;
  border: 1px dashed var(--border-dashed);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
}

.phone-sign-placeholder {
  color: var(--text-light);
  font-size: 0.78rem;
}

.phone-sign-img {
  max-height: 48px;
}

/* 存证证书报告弹窗 (Cert Modal Details) */
.cert-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
  margin-bottom: 16px;
}

.cert-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.cert-title-text {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-main);
}

.cert-close-btn {
  background: none;
  border: none;
  font-size: 1.1rem;
  cursor: pointer;
  color: var(--text-light);
  transition: var(--transition);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
}

.cert-close-btn:hover {
  color: var(--text-main);
  background: var(--bg-subtle);
}

.cert-body {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cert-notice-success {
  padding: 10px;
  background: var(--color-success-bg);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-success-border);
  color: var(--color-success-text);
  font-weight: 600;
}

.cert-notice-warning {
  padding: 10px;
  background: var(--color-warning-bg);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-warning-border);
  color: var(--color-warning-text);
}

.cert-field-label {
  color: var(--text-muted);
}

.cert-hash-box {
  background: var(--bg-subtle);
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  font-family: monospace;
  font-size: 0.76rem;
  word-break: break-all;
  margin-top: 4px;
  color: var(--text-main);
}

.cert-timeline-list {
  margin: 6px 0 0 18px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.cert-modal-footer {
  margin-top: 20px;
  text-align: right;
}

/* ==========================================================================
   5. 在线签署与存证弹窗 (Demo Modals)
   ========================================================================== */
/* 在线签署模拟器弹窗 Demo Modal */
.demo-modal-mask {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 20px;
  overflow-y: auto;
}

.demo-modal-mask.open {
  display: flex;
}

.demo-modal-dialog {
  background: #ffffff;
  border-radius: 20px;
  max-width: 680px;
  width: 100%;
  max-height: 92vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.1);
  animation: modalZoom 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
  margin: auto;
}

.demo-modal-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: #ffffff;
  border-bottom: 1px solid var(--border-color);
  gap: 12px;
  flex-shrink: 0;
}

.demo-modal-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.demo-modal-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: var(--color-info-light);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid #dbeafe;
}

.demo-modal-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 0;
}

.demo-modal-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.demo-modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-body);
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}

.demo-modal-close:hover {
  background: #fee2e2;
  color: var(--color-danger);
  border-color: #fca5a5;
  transform: scale(1.05);
}

.demo-modal-body {
  overflow-y: auto;
  max-height: calc(92vh - 64px);
}

.modal-embedded-card {
  border: none !important;
  box-shadow: none !important;
  border-radius: 0 !important;
}

/* 证书防伪弹窗 Toast */
.cert-modal-mask {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 2200;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.cert-modal-mask.open {
  display: flex;
}

.cert-modal-box {
  background: #ffffff;
  border-radius: var(--radius-lg);
  max-width: 500px;
  width: 100%;
  padding: 24px;
  box-shadow: var(--shadow-xl);
  animation: modalZoom 0.25s ease-out;
}

@keyframes modalZoom {
  from {
    transform: scale(0.92);
    opacity: 0;
  }

  to {
    transform: scale(1);
    opacity: 1;
  }
}

/* ==========================================================================
   6. 首页响应式断点 (Index Responsive Media Queries)
   ========================================================================== */
/* ==========================================================================
   首页响应式适配断点 (Index Responsive Media Queries)
   ========================================================================== */
@media (max-width: 1080px) {
  .hero-section {
    padding: 80px 0 64px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    min-height: 0;
  }

  /* 平板空间不足以完整呈现右侧插画，优先保证文案与操作区不换行。 */
  .hero-slide .hero-showcase-wrap,
  .hero-slide .secure-link-artwork,
  .hero-slide .contract-artwork,
  .hero-slide .vault-artwork {
    display: none;
  }

  .hero-content {
    align-items: center;
    text-align: center;
  }

  .hero-title {
    font-size: 2.6rem;
  }

  .hero-desc {
    width: 100%;
    max-width: 560px;
  }

  .hero-cta-wrap {
    justify-content: center;
  }

  .hero-trust-bar {
    justify-content: center;
    text-align: center;
  }

  .hero-features-strip {
    max-width: 600px;
  }

  .showcase-float-chip {
    display: none;
  }

  .bento-grid,
  .security-grid,
  .scenarios-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps-container {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps-container::after {
    display: none;
  }
}

@media (max-width: 960px) {
  .signing-choice-grid {
    grid-template-columns: 1fr;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 768px) {
  .hero-section {
    padding: 56px 0 48px;
  }

  .hero-slide .hero-showcase-wrap,
  .hero-slide .secure-link-artwork,
  .hero-slide .contract-artwork,
  .hero-slide .vault-artwork {
    display: none;
  }

  .hero-grid {
    gap: 0;
  }

  .hero-title {
    font-size: 2.1rem;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .hero-trust-bar {
    flex-direction: column;
    gap: 4px;
  }

  .hero-features-strip {
    grid-template-columns: 1fr;
    gap: 8px;
    text-align: left;
  }

  .hero-controls-bar {
    flex-direction: row;
    align-items: center;
    gap: 18px;
    margin-top: 24px;
  }

  .hero-indicators-group {
    gap: 8px;
  }

  .signing-choice-grid {
    grid-template-columns: 1fr;
  }

  .signing-choice-card {
    min-height: 0;
  }

  .contract-artwork,
  .vault-artwork {
    min-height: 340px;
  }

  .orbit-one,
  .vault-orbit-one {
    width: 265px;
    height: 265px;
  }

  .orbit-two,
  .vault-orbit-two {
    width: 330px;
    height: 205px;
  }

  .contract-sheet {
    top: 24px;
    width: 200px;
    height: 266px;
    padding: 20px 18px;
  }

  .contract-sheet-lines {
    margin-top: 22px;
    gap: 8px;
  }

  .contract-signature {
    left: 18px;
    bottom: 17px;
  }

  .contract-seal {
    right: -26px;
    bottom: 23px;
    width: 76px;
    height: 76px;
  }

  .contract-collaborator,
  .vault-node {
    width: 35px;
    height: 35px;
    font-size: 0.75rem;
  }

  .collaborator-one {
    top: 43px;
    left: 8%;
  }

  .collaborator-two {
    top: 128px;
    right: 7%;
  }

  .collaborator-three {
    bottom: 64px;
    left: 7%;
  }

  .vault-core {
    width: 118px;
    height: 118px;
  }

  .vault-core i {
    font-size: 1.9rem;
  }

  .vault-node-one {
    top: 44px;
    left: 10%;
  }

  .vault-node-two {
    top: 80px;
    right: 9%;
  }

  .vault-node-three {
    bottom: 61px;
    left: 10%;
  }

  .vault-hash {
    right: 3%;
    bottom: 72px;
    font-size: 0.62rem;
  }

  .approval-permission-list,
  .evidence-metrics {
    grid-template-columns: 1fr;
  }

  .approval-permission-item {
    padding: 8px 10px;
  }

  .hero-arrows-group {
    justify-content: center;
  }

  .showcase-sign-pipeline {
    grid-template-columns: 1fr;
  }

  .showcase-bottom-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .showcase-doc-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .demo-modal-dialog {
    width: 96%;
    max-height: 95vh;
    border-radius: 14px;
  }

  .demo-modal-topbar {
    padding: 10px 14px;
  }

  .compare-matrix-table {
    min-width: 740px;
  }

  .compare-matrix-table thead th,
  .compare-matrix-table tbody td {
    padding: 10px 14px;
  }

  .section {
    padding: 56px 0;
  }

  .section-header {
    margin-bottom: 32px;
  }

  .security-section {
    padding: 48px 20px;
    border-radius: var(--radius-lg);
  }

  .compliance-banner-box {
    padding: 16px;
  }

  .compare-grid,
  .comparison-cards,
  .bento,
  .bento-grid,
  .security-grid,
  .scenarios-grid,
  .steps-container {
    grid-template-columns: 1fr;
  }

  .bento-card.wide {
    grid-column: span 1;
  }

  .share-mock {
    grid-template-columns: 1fr;
  }

  .qr-box {
    justify-self: center;
  }

  .cta-title {
    font-size: 1.7rem;
  }

  .doc-sign-slots {
    grid-template-columns: 1fr;
  }

  .hero-section {
    padding: 44px 0 36px;
  }

  .hero-title {
    font-size: 2rem;
    line-height: 1.2;
  }

  .hero-desc {
    font-size: 0.9rem;
    line-height: 1.65;
  }

  .hero-badge-pill {
    padding: 6px 10px;
    font-size: 0.7rem;
  }

  .hero-cta-wrap {
    width: 100%;
    flex-direction: column;
    gap: 10px;
  }

  .hero-btn-primary,
  .hero-btn-demo {
    width: 100%;
    justify-content: center;
  }

  .hero-trust-bar {
    flex-direction: row;
    align-items: flex-start;
    justify-content: center;
    gap: 8px;
    font-size: 0.72rem;
    line-height: 1.45;
  }

  .hero-trust-bar>i {
    flex: 0 0 auto;
    margin-top: 0.16em;
  }

  .hero-trust-bar>span,
  .hero-trust-bar>a {
    flex: 0 1 auto;
  }

  .hero-features-strip {
    display: none;
  }

  .hero-controls-bar {
    gap: 14px;
    margin-top: 18px;
  }

  .hero-arrow-btn {
    width: 30px;
    height: 30px;
  }

  .section {
    padding: 48px 0;
  }

  .section-header {
    margin-bottom: 26px;
  }

  .section-title {
    font-size: 1.6rem;
    line-height: 1.3;
  }

  .section-subtitle {
    font-size: 0.88rem;
    line-height: 1.65;
  }

  .signing-choice-grid {
    gap: 14px;
    margin-top: 24px;
  }

  .signing-choice-card {
    padding: 22px;
    border-radius: 16px;
  }

  .choice-icon {
    width: 42px;
    height: 42px;
    margin-bottom: 16px;
  }

  .choice-metric {
    margin: 18px 0 8px;
  }

  .choice-metric strong {
    font-size: 1.9rem;
  }

  .choice-description {
    min-height: 0;
    margin-bottom: 18px;
  }

  .choice-points {
    gap: 9px;
  }

  .bento-card,
  .step-box,
  .scenario-card {
    padding: 20px;
    border-radius: 14px;
  }

  .security-section {
    padding: 38px 18px;
    border-radius: 0;
  }

  .security-card {
    padding: 20px;
  }

  .compliance-banner-box {
    padding: 14px;
    align-items: flex-start;
  }

  .cta-title {
    font-size: 1.4rem;
    line-height: 1.3;
    margin-bottom: 10px;
  }

  .cta-desc {
    margin-bottom: 20px;
    font-size: 0.88rem;
    line-height: 1.6;
  }

  .cta-actions {
    gap: 10px;
    flex-direction: column;
    align-items: stretch;
  }

  .cta-actions .btn {
    padding: 10px 14px;
    font-size: 0.88rem;
    width: 100%;
    justify-content: center;
  }

  .demo-modal-mask,
  .cert-modal-mask {
    padding: 10px;
  }

  .cert-modal-box {
    padding: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {

  .secure-link-document,
  .secure-link-signer,
  .secure-link-verified,
  .collaborator-one,
  .collaborator-two,
  .collaborator-three,
  .vault-node-one,
  .vault-node-two,
  .vault-node-three {
    animation: none;
  }

  .hero-slide.active .hero-badge-pill,
  .hero-slide.active .hero-title,
  .hero-slide.active .hero-desc,
  .hero-slide.active .hero-cta-wrap,
  .hero-slide.active .hero-trust-bar,
  .hero-slide.active .hero-features-strip,
  .hero-slide.active .hero-features-strip .hero-feature-item,
  .hero-slide.active .hero-showcase-wrap,
  .hero-slide.active .contract-artwork,
  .hero-slide.active .vault-artwork {
    animation: none !important;
  }
}