/* ============================================
   有来有去 官网 - 纯静态版
   局域网手机电脑互通协作工具
   ============================================ */

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --gold: #ffd700;
  --gold-dark: #daa520;
  --crimson: #dc143c;
  --crimson-bright: #ff1744;
  --sky: #4fc3f7;
  --sky-dark: #0288d1;
  --emerald: #10b981;
  --emerald-dark: #059669;
  --bg-deep: #0a0a18;
  --bg-main: #0f0f1e;
  --bg-card: #141428;
  --bg-alt: #1a1a2e;
  --white-100: #ffffff;
  --white-80: rgba(255,255,255,0.8);
  --white-70: rgba(255,255,255,0.7);
  --white-50: rgba(255,255,255,0.5);
  --white-40: rgba(255,255,255,0.4);
  --white-60: rgba(255,255,255,0.6);
  --white-30: rgba(255,255,255,0.3);
  --white-20: rgba(255,255,255,0.2);
  --white-10: rgba(255,255,255,0.1);
  --white-06: rgba(255,255,255,0.06);
  --white-04: rgba(255,255,255,0.04);
  --white-02: rgba(255,255,255,0.02);
  --white-03: rgba(255,255,255,0.03);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-main);
  color: var(--white-100);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: rgba(218,165,32,0.3);
  color: white;
}

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: rgba(255,255,255,0.02); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
button { border: none; background: none; cursor: pointer; font: inherit; color: inherit; }

/* ---------- Utilities ---------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 50px;
  background: rgba(218,165,32,0.1);
  border: 1px solid rgba(218,165,32,0.2);
  color: var(--gold);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 20px;
}

.section-badge svg { width: 14px; height: 14px; }

.section-title {
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
  color: var(--white-100);
}

.section-desc {
  font-size: clamp(0.95rem, 1.5vw, 1.125rem);
  color: var(--white-50);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.8;
}

.text-center { text-align: center; }

/* ---------- Animations ---------- */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes bounceDown {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0; }
  50% { opacity: 1; }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-stagger { transition-delay: 0s; }
.animate-stagger:nth-child(1) { transition-delay: 0s; }
.animate-stagger:nth-child(2) { transition-delay: 0.1s; }
.animate-stagger:nth-child(3) { transition-delay: 0.2s; }
.animate-stagger:nth-child(4) { transition-delay: 0.3s; }
.animate-stagger:nth-child(5) { transition-delay: 0.4s; }
.animate-stagger:nth-child(6) { transition-delay: 0.5s; }
.animate-stagger:nth-child(7) { transition-delay: 0.6s; }
.animate-stagger:nth-child(8) { transition-delay: 0.7s; }
.animate-stagger:nth-child(9) { transition-delay: 0.8s; }

/* ---------- Navbar ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: all 0.3s ease;
  padding: 0 24px;
}

.navbar.scrolled {
  background: rgba(15,15,30,0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
  border-bottom: 1px solid rgba(218,165,32,0.1);
}

.navbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  transition: transform 0.3s;
}

.navbar-brand:hover { transform: scale(1.03); }

.navbar-brand img {
  width: 40px;
  height: 40px;
  border-radius: 4px;
}

.navbar-brand-text h1 {
  font-size: 18px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.15em;
  line-height: 1.2;
}

.navbar-brand-text span {
  font-size: 11px;
  color: var(--white-50);
  letter-spacing: 0.3em;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.navbar-links a {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--white-70);
  transition: all 0.2s;
}

.navbar-links a:hover {
  color: var(--gold);
  background: rgba(255,255,255,0.05);
}

.navbar-links a.btn-download {
  background: rgba(220,20,60,0.9);
  color: white;
  box-shadow: 0 4px 12px rgba(220,20,60,0.2);
}

.navbar-links a.btn-download:hover {
  background: var(--crimson);
}

.mobile-toggle {
  display: none;
  padding: 8px;
  color: var(--white-80);
}

.mobile-toggle:hover { color: var(--gold); }

.mobile-menu {
  display: none;
  background: rgba(15,15,30,0.98);
  backdrop-filter: blur(16px);
  border-top: 1px solid rgba(218,165,32,0.1);
  padding: 16px;
}

.mobile-menu.open { display: block; }

.mobile-menu a {
  display: block;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--white-70);
  transition: all 0.2s;
}

.mobile-menu a:hover {
  color: var(--gold);
  background: rgba(255,255,255,0.05);
}

.mobile-menu a.btn-download {
  background: rgba(220,20,60,0.9);
  color: white;
  text-align: center;
  margin-top: 4px;
}

/* ---------- Hero Section ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, #0a0a18, #0f0f1e, #1a1a2e);
}

.hero-bg-img {
  position: absolute;
  inset: 0;
}

.hero-bg-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.12;
}

.hero-glow-1 {
  position: absolute;
  top: 25%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 600px;
  background: rgba(218,165,32,0.06);
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
}

.hero-glow-2 {
  position: absolute;
  bottom: 25%;
  right: 25%;
  width: 400px;
  height: 400px;
  background: rgba(220,20,60,0.04);
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
}

.hero-mountains {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  width: 100%;
  height: 200px;
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 800px;
  margin: 0 auto;
  padding: 96px 24px 128px;
  text-align: center;
}

.hero-logo {
  margin-bottom: 32px;
  display: flex;
  justify-content: center;
}

.hero-logo img {
  width: 96px;
  height: 96px;
  border-radius: 8px;
  animation: float 4s ease-in-out infinite;
}

.hero-title {
  font-size: clamp(2.25rem, 6vw, 4.5rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
  color: white;
  animation: fadeInUp 0.7s ease-out 0.2s both;
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  color: rgba(255,215,0,0.9);
  font-weight: 500;
  letter-spacing: 0.2em;
  margin-bottom: 24px;
  animation: fadeInUp 0.7s ease-out 0.35s both;
}

.hero-data-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 32px;
  animation: fadeInUp 0.7s ease-out 0.5s both;
}

.flow-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 50px;
  border: 1px solid var(--white-10);
  background: rgba(255,255,255,0.03);
  backdrop-filter: blur(4px);
}

.flow-item .emoji { font-size: 16px; }
.flow-item .label { font-size: 13px; font-weight: 500; }
.flow-item .label.gold { color: var(--gold); }
.flow-item .label.sky { color: var(--sky); }
.flow-item .label.crimson { color: var(--crimson); }
.flow-item .label.emerald { color: var(--emerald); }
.flow-item .label.purple { color: #a855f7; }
.flow-item .label.orange { color: #f97316; }

.flow-connector {
  width: 32px;
  height: 2px;
  background: var(--white-20);
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  animation: fadeInUp 0.7s ease-out 0.8s both;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 50px;
  background: rgba(218,165,32,0.1);
  border: 1px solid rgba(218,165,32,0.2);
  color: var(--gold);
  font-size: 13px;
  font-weight: 500;
}

.hero-badge svg { width: 14px; height: 14px; }

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
  animation: fadeInUp 0.7s ease-out 0.95s both;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: var(--crimson);
  color: white;
  font-weight: 700;
  font-size: 16px;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(220,20,60,0.3);
  transition: all 0.3s;
}

.btn-primary:hover {
  background: var(--crimson-bright);
  box-shadow: 0 8px 24px rgba(220,20,60,0.5);
  transform: scale(1.05);
}

.btn-primary svg { width: 20px; height: 20px; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: rgba(255,255,255,0.06);
  color: var(--white-80);
  font-weight: 500;
  font-size: 16px;
  border-radius: 12px;
  border: 1px solid var(--white-10);
  transition: all 0.3s;
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  color: white;
  border-color: var(--white-20);
}

.btn-secondary svg { width: 16px; height: 16px; }

.hero-origin {
  color: var(--white-30);
  font-size: 14px;
  letter-spacing: 0.2em;
  animation: fadeIn 0.8s ease-out 1.1s both;
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  color: var(--white-30);
  animation: bounceDown 2s ease-in-out infinite;
}

.hero-scroll-indicator svg { width: 28px; height: 28px; }

/* ---------- Four Dimensions Section ---------- */
.dimensions-section {
  position: relative;
  padding: 80px 0 112px;
  background: var(--bg-alt);
  overflow: hidden;
}

.dimensions-section .section-glow {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: rgba(218,165,32,0.04);
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
}

.dimensions-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.dim-card {
  position: relative;
  padding: 28px;
  border-radius: 16px;
  border: 1px solid;
  backdrop-filter: blur(4px);
  transition: all 0.3s;
  overflow: hidden;
}

.dim-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.dim-card .glow-overlay {
  position: absolute;
  inset: 0;
  border-radius: 16px;
  opacity: 0;
  transition: opacity 0.5s;
  pointer-events: none;
}

.dim-card:hover .glow-overlay { opacity: 1; }

.dim-card .card-content { position: relative; z-index: 1; }

.dim-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  margin-bottom: 16px;
}

.dim-icon svg { width: 24px; height: 24px; }

.dim-card h3 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.dim-card .dim-subtitle {
  color: var(--white-40);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.dim-card .dim-tagline {
  color: var(--white-70);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 16px;
}

.dim-features { list-style: none; }

.dim-features li {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--white-50);
  font-size: 12px;
  margin-bottom: 8px;
}

.dim-features li .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* Dimension color variants */
.dim-gold {
  border-color: rgba(255,215,0,0.3);
  background: linear-gradient(to bottom, rgba(255,215,0,0.15), rgba(218,165,32,0.03));
}
.dim-gold .glow-overlay { box-shadow: 0 0 40px rgba(255,215,0,0.08), 0 0 80px rgba(255,215,0,0.04); }
.dim-gold .dim-icon { background: rgba(255,215,0,0.15); }
.dim-gold h3 { color: var(--gold); }
.dim-gold .dot { background: var(--gold); }

.dim-sky {
  border-color: rgba(79,195,247,0.3);
  background: linear-gradient(to bottom, rgba(79,195,247,0.15), rgba(2,136,209,0.03));
}
.dim-sky .glow-overlay { box-shadow: 0 0 40px rgba(79,195,247,0.08), 0 0 80px rgba(79,195,247,0.04); }
.dim-sky .dim-icon { background: rgba(79,195,247,0.15); }
.dim-sky h3 { color: var(--sky); }
.dim-sky .dot { background: var(--sky); }

.dim-crimson {
  border-color: rgba(220,20,60,0.3);
  background: linear-gradient(to bottom, rgba(220,20,60,0.15), rgba(139,0,0,0.03));
}
.dim-crimson .glow-overlay { box-shadow: 0 0 40px rgba(220,20,60,0.08), 0 0 80px rgba(220,20,60,0.04); }
.dim-crimson .dim-icon { background: rgba(220,20,60,0.15); }
.dim-crimson h3 { color: var(--crimson); }
.dim-crimson .dot { background: var(--crimson); }

.dim-emerald {
  border-color: rgba(16,185,129,0.3);
  background: linear-gradient(to bottom, rgba(16,185,129,0.15), rgba(5,150,105,0.03));
}
.dim-emerald .glow-overlay { box-shadow: 0 0 40px rgba(16,185,129,0.08), 0 0 80px rgba(16,185,129,0.04); }
.dim-emerald .dim-icon { background: rgba(16,185,129,0.15); }
.dim-emerald h3 { color: var(--emerald); }
.dim-emerald .dot { background: var(--emerald); }

.dim-purple {
  border-color: rgba(168,85,247,0.3);
  background: linear-gradient(to bottom, rgba(168,85,247,0.15), rgba(124,58,237,0.03));
}
.dim-purple .glow-overlay { box-shadow: 0 0 40px rgba(168,85,247,0.08), 0 0 80px rgba(168,85,247,0.04); }
.dim-purple .dim-icon { background: rgba(168,85,247,0.15); }
.dim-purple h3 { color: #a855f7; }
.dim-purple .dot { background: #a855f7; }

.dim-orange {
  border-color: rgba(249,115,22,0.3);
  background: linear-gradient(to bottom, rgba(249,115,22,0.15), rgba(234,88,12,0.03));
}
.dim-orange .glow-overlay { box-shadow: 0 0 40px rgba(249,115,22,0.08), 0 0 80px rgba(249,115,22,0.04); }
.dim-orange .dim-icon { background: rgba(249,115,22,0.15); }
.dim-orange h3 { color: #f97316; }
.dim-orange .dot { background: #f97316; }

/* ---------- Features Section ---------- */
.features-section {
  position: relative;
  padding: 80px 0 112px;
  background: var(--bg-card);
  overflow: hidden;
}

.features-section .section-glow-1 {
  position: absolute;
  top: 33%;
  right: 0;
  width: 500px;
  height: 400px;
  background: rgba(218,165,32,0.03);
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
}

.features-section .section-glow-2 {
  position: absolute;
  bottom: 33%;
  left: 0;
  width: 400px;
  height: 300px;
  background: rgba(220,20,60,0.02);
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.feature-card {
  padding: 28px;
  border-radius: 16px;
  border: 1px solid var(--white-06);
  background: var(--white-02);
  transition: all 0.3s;
}

.feature-card:hover {
  background: var(--white-04);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.2);
}

.feature-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 500;
  border: 1px solid;
  margin-bottom: 12px;
}

.feature-badge.crimson { background: rgba(220,20,60,0.2); color: var(--crimson); border-color: rgba(220,20,60,0.3); }
.feature-badge.emerald { background: rgba(16,185,129,0.2); color: var(--emerald); border-color: rgba(16,185,129,0.3); }
.feature-badge.sky { background: rgba(79,195,247,0.2); color: var(--sky); border-color: rgba(79,195,247,0.3); }
.feature-badge.purple { background: rgba(168,85,247,0.2); color: #a855f7; border-color: rgba(168,85,247,0.3); }
.feature-badge.orange { background: rgba(249,115,22,0.2); color: #f97316; border-color: rgba(249,115,22,0.3); }
.feature-badge.gold { background: rgba(255,215,0,0.2); color: var(--gold); border-color: rgba(255,215,0,0.3); }

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  margin-bottom: 16px;
}

.feature-icon svg { width: 22px; height: 22px; }

.feature-icon.gold { background: rgba(255,215,0,0.15); color: var(--gold); }
.feature-icon.crimson { background: rgba(220,20,60,0.15); color: var(--crimson); }
.feature-icon.emerald { background: rgba(16,185,129,0.15); color: var(--emerald); }
.feature-icon.sky { background: rgba(79,195,247,0.15); color: var(--sky); }
.feature-icon.purple { background: rgba(168,85,247,0.15); color: #a855f7; }
.feature-icon.orange { background: rgba(249,115,22,0.15); color: #f97316; }

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.feature-card p {
  color: var(--white-50);
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- Not Just File Transfer Section ---------- */
.notjust-section {
  position: relative;
  padding: 80px 0 112px;
  background: var(--bg-main);
  overflow: hidden;
}

.notjust-section .bg-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(26,26,46,0.5), transparent, rgba(26,26,46,0.5));
  pointer-events: none;
}

.notjust-section .section-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 400px;
  background: rgba(218,165,32,0.03);
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 800px;
  margin: 56px auto 0;
}

.comparison-card {
  padding: 32px;
  border-radius: 16px;
  text-align: center;
  transition: transform 0.3s;
}

.comparison-card:hover { transform: scale(1.01); }

.comparison-card.traditional {
  border: 1px solid var(--white-06);
  background: var(--white-02);
}

.comparison-card.ylyq {
  border: 1px solid rgba(255,215,0,0.3);
  background: linear-gradient(to bottom, rgba(255,215,0,0.1), rgba(218,165,32,0.03));
  position: relative;
  overflow: hidden;
}

.comparison-card.ylyq .glow {
  position: absolute;
  inset: 0;
  border-radius: 16px;
  opacity: 0;
  transition: opacity 0.5s;
  box-shadow: 0 0 40px rgba(255,215,0,0.08), 0 0 80px rgba(255,215,0,0.04);
  pointer-events: none;
}

.comparison-card.ylyq:hover .glow { opacity: 1; }

.comparison-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  margin-bottom: 20px;
}

.comparison-icon.dim { background: rgba(255,255,255,0.05); color: var(--white-30); }
.comparison-icon.bright { background: rgba(255,215,0,0.15); }
.comparison-icon.bright img { width: 32px; height: 32px; border-radius: 4px; }

.comparison-card h3 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.comparison-card.traditional h3 { color: var(--white-40); }
.comparison-card.ylyq h3 { color: var(--gold); }

.comparison-tag {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 16px;
}

.comparison-tag.dim {
  background: var(--white-03);
  border: 1px solid var(--white-06);
  color: var(--white-30);
}

.comparison-tag.bright {
  background: rgba(255,215,0,0.05);
  border: 1px solid rgba(255,215,0,0.2);
}

.comparison-tag .plus { color: rgba(255,215,0,0.4); }
.comparison-tag .tag-gold { color: var(--gold); font-weight: 500; }
.comparison-tag .tag-sky { color: var(--sky); font-weight: 500; }
.comparison-tag .tag-crimson { color: var(--crimson); font-weight: 500; }
.comparison-tag .tag-emerald { color: var(--emerald); font-weight: 500; }
.comparison-tag .tag-purple { color: #a855f7; font-weight: 500; }
.comparison-tag .tag-orange { color: #f97316; font-weight: 500; }

.comparison-list { list-style: none; text-align: left; }

.comparison-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  margin-bottom: 8px;
}

.comparison-list li .icon-circle {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  flex-shrink: 0;
}

.comparison-list li .icon-circle.cross {
  border: 1px solid var(--white-10);
  color: var(--white-20);
}

.comparison-list li .icon-circle.check-sky {
  background: rgba(79,195,247,0.15);
  color: var(--sky);
}

.comparison-list li .icon-circle.check-crimson {
  background: rgba(220,20,60,0.15);
  color: var(--crimson);
}

.comparison-list li .icon-circle.check-emerald {
  background: rgba(16,185,129,0.15);
  color: var(--emerald);
}
.comparison-list li .icon-circle.check-purple {
  background: rgba(168,85,247,0.15);
  color: #a855f7;
}
.comparison-list li .icon-circle.check-orange {
  background: rgba(249,115,22,0.15);
  color: #f97316;
}

.comparison-list.traditional li { color: var(--white-20); }
.comparison-list.ylyq-sky li { color: rgba(79,195,247,0.8); }
.comparison-list.ylyq-crimson li { color: rgba(220,20,60,0.8); }
.comparison-list.ylyq-emerald li { color: rgba(16,185,129,0.8); }

.notjust-quote {
  margin-top: 48px;
  text-align: center;
}

.notjust-quote blockquote {
  font-style: italic;
  color: var(--white-40);
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  line-height: 1.8;
  max-width: 600px;
  margin: 0 auto;
}

/* ---------- Scenarios Section ---------- */
.scenarios-section {
  position: relative;
  padding: 80px 0 112px;
  background: var(--bg-alt);
  overflow: hidden;
}

.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.scenario-card {
  display: flex;
  gap: 16px;
  padding: 20px;
  border-radius: 16px;
  border: 1px solid var(--white-06);
  background: var(--white-02);
  transition: all 0.3s;
}

.scenario-card:hover {
  background: var(--white-04);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.2);
}

.scenario-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.scenario-icon svg { width: 20px; height: 20px; }

.scenario-icon.gold { background: rgba(255,215,0,0.15); color: var(--gold); }
.scenario-icon.sky { background: rgba(79,195,247,0.15); color: var(--sky); }
.scenario-icon.crimson { background: rgba(220,20,60,0.15); color: var(--crimson); }
.scenario-icon.emerald { background: rgba(16,185,129,0.15); color: var(--emerald); }
.scenario-icon.purple { background: rgba(168,85,247,0.15); color: #a855f7; }
.scenario-icon.orange { background: rgba(249,115,22,0.15); color: #f97316; }

.scenario-card h3 {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.scenario-card p {
  color: var(--white-50);
  font-size: 14px;
  line-height: 1.6;
}

/* ---------- How To Section ---------- */
.howto-section {
  position: relative;
  padding: 80px 0 112px;
  background: var(--bg-card);
  overflow: hidden;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 56px;
  margin-bottom: 56px;
}

.step-item { text-align: center; }

.step-icon-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 16px;
  margin-bottom: 20px;
  transition: transform 0.3s;
}

.step-item:hover .step-icon-wrap { transform: scale(1.1); }

.step-icon-wrap svg { width: 28px; height: 28px; }

.step-icon-wrap.gold { background: rgba(255,215,0,0.15); color: var(--gold); }
.step-icon-wrap.sky { background: rgba(79,195,247,0.15); color: var(--sky); }
.step-icon-wrap.crimson { background: rgba(220,20,60,0.15); color: var(--crimson); }
.step-icon-wrap.emerald { background: rgba(16,185,129,0.15); color: var(--emerald); }

.step-number {
  position: absolute;
  top: -6px;
  right: -6px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg-alt);
  border: 1px solid var(--white-10);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--white-60);
}

.step-item h4 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.step-item h4.gold { color: var(--gold); }
.step-item h4.sky { color: var(--sky); }
.step-item h4.crimson { color: var(--crimson); }
.step-item h4.emerald { color: var(--emerald); }

.step-item p {
  color: var(--white-50);
  font-size: 14px;
  line-height: 1.6;
  max-width: 240px;
  margin: 0 auto;
}

.tips-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.tip-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  border-radius: 12px;
  border: 1px solid var(--white-06);
  background: var(--white-02);
  transition: all 0.3s;
}

.tip-item.highlight-crimson {
  border-color: rgba(220,20,60,0.3);
  background: rgba(220,20,60,0.05);
}

.tip-item.highlight-emerald {
  border-color: rgba(16,185,129,0.3);
  background: rgba(16,185,129,0.05);
}

.tip-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(255,255,255,0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white-40);
}

.tip-icon svg { width: 16px; height: 16px; }

.tip-item h5 {
  color: var(--white-70);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 2px;
}

.tip-item p {
  color: var(--white-40);
  font-size: 12px;
}

/* ---------- Download Section ---------- */
.download-section {
  position: relative;
  padding: 80px 0 112px;
  background: var(--bg-main);
  overflow: hidden;
}

.download-section .section-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 400px;
  background: rgba(218,165,32,0.04);
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
}

.download-card {
  position: relative;
  max-width: 420px;
  margin: 48px auto 32px;
  padding: 40px;
  border-radius: 24px;
  border: 1px solid rgba(255,215,0,0.3);
  background: linear-gradient(to bottom, rgba(255,215,0,0.1), rgba(218,165,32,0.03));
  text-align: center;
  overflow: hidden;
  transition: all 0.3s;
}

.download-card:hover {
  box-shadow: 0 12px 40px rgba(255,215,0,0.1);
}

.download-card .glow {
  position: absolute;
  inset: 0;
  border-radius: 24px;
  opacity: 0;
  transition: opacity 0.5s;
  box-shadow: 0 0 40px rgba(255,215,0,0.08), 0 0 80px rgba(255,215,0,0.04);
  pointer-events: none;
}

.download-card:hover .glow { opacity: 1; }

.download-card .card-inner { position: relative; z-index: 1; }

.download-card .version {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--gold);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.download-card .version svg { width: 20px; height: 20px; color: var(--gold); }

.download-card .size {
  color: var(--white-40);
  font-size: 14px;
  margin-bottom: 8px;
}

.download-card .note {
  color: var(--white-50);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 24px;
}

.download-card .password {
  color: rgba(218,165,32,0.5);
  font-size: 14px;
  margin-top: 16px;
}

.download-badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-top: 32px;
}

.download-badges span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--white-40);
  font-size: 14px;
}

.download-badges svg { width: 14px; height: 14px; }

/* ---------- FAQ Section ---------- */
.faq-section {
  position: relative;
  padding: 80px 0 112px;
  background: var(--bg-alt);
}

.faq-list {
  max-width: 720px;
  margin: 48px auto 0;
}

.faq-item {
  border-radius: 12px;
  border: 1px solid var(--white-06);
  background: var(--white-02);
  margin-bottom: 12px;
  transition: all 0.3s;
  overflow: hidden;
}

.faq-item.highlight-crimson { border-color: rgba(220,20,60,0.3); background: var(--white-03); }
.faq-item.highlight-emerald { border-color: rgba(16,185,129,0.3); background: var(--white-03); }
.faq-item.highlight-sky { border-color: rgba(79,195,247,0.3); background: var(--white-03); }

.faq-item.open { background: var(--white-04); }

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 16px 20px;
  text-align: left;
  color: var(--white-80);
  font-size: 15px;
  font-weight: 500;
}

.faq-question svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: var(--white-40);
  transition: transform 0.3s;
}

.faq-item.open .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.3s, opacity 0.3s;
}

.faq-item.open .faq-answer {
  max-height: 400px;
  opacity: 1;
}

.faq-answer p {
  padding: 0 20px 20px;
  color: var(--white-50);
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- Footer ---------- */
.footer {
  position: relative;
  background: var(--bg-deep);
  border-top: 1px solid var(--white-04);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 48px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-brand img {
  width: 40px;
  height: 40px;
  border-radius: 4px;
}

.footer-brand h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.15em;
}

.footer-brand span {
  font-size: 11px;
  color: var(--white-40);
  letter-spacing: 0.3em;
}

.footer-desc {
  color: var(--white-30);
  font-size: 14px;
  line-height: 1.6;
  max-width: 320px;
}

.footer h4 {
  color: var(--white-60);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.footer-links { list-style: none; }

.footer-links li { margin-bottom: 10px; }

.footer-links a {
  color: var(--white-30);
  font-size: 14px;
  transition: color 0.2s;
}

.footer-links a:hover { color: var(--gold); }

.footer-donate-desc {
  color: var(--white-30);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 16px;
}

.footer-donate-img {
  width: 112px;
  height: 112px;
  border-radius: 8px;
  border: 1px solid var(--white-06);
}

.footer-bottom {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--white-04);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-bottom p {
  color: var(--white-20);
  font-size: 12px;
}

/* ---------- Navbar Active Link ---------- */
.navbar-links a.navbar-link-active {
  color: var(--gold);
  background: rgba(218,165,32,0.1);
}

/* ---------- Navbar Gua Sha Link ---------- */
.navbar-links a.nav-guasha {
  color: #C8A96E;
  font-weight: 600;
  border: 1px solid rgba(200,169,110,0.3);
  border-radius: 8px;
  padding: 6px 14px;
  transition: all 0.3s;
}

.navbar-links a.nav-guasha:hover {
  color: var(--gold);
  background: rgba(200,169,110,0.12);
  border-color: rgba(200,169,110,0.5);
}

/* ---------- Inspiration Hero (Full-screen, rich) ---------- */
.inspiration-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.inspiration-hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, #0a0a18, #0f0f1e, #141428);
}

.inspiration-hero-img {
  position: absolute;
  inset: 0;
}

.inspiration-hero-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.12;
}

.inspiration-glow-1 {
  position: absolute;
  top: 25%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 600px;
  background: rgba(218,165,32,0.06);
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
}

.inspiration-glow-2 {
  position: absolute;
  bottom: 20%;
  right: 20%;
  width: 500px;
  height: 500px;
  background: rgba(220,20,60,0.04);
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
}

.inspiration-hero-content {
  position: relative;
  z-index: 10;
  max-width: 800px;
  margin: 0 auto;
  padding: 96px 24px 128px;
  text-align: center;
}

.inspiration-hero-logo {
  margin-bottom: 32px;
  display: flex;
  justify-content: center;
}

.inspiration-hero-logo img {
  width: 96px;
  height: 96px;
  border-radius: 8px;
  animation: float 4s ease-in-out infinite;
}

.inspiration-title {
  font-size: clamp(2.25rem, 6vw, 4.5rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--gold), var(--crimson), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.3;
}

.inspiration-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--white-50);
  letter-spacing: 0.1em;
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.8;
}

.inspiration-hero-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 32px;
}

.inspiration-hero-origin {
  margin-top: 32px;
  color: var(--white-30);
  font-size: 14px;
  letter-spacing: 0.2em;
}

/* ---------- Pain Cards (创作初衷) ---------- */
.pain-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 56px;
}

.pain-card {
  padding: 28px;
  border-radius: 16px;
  border: 1px solid var(--white-06);
  background: var(--white-02);
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.pain-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.2);
}

/* Pain card color variants */
.pain-card-gold {
  border-color: rgba(255,215,0,0.3);
  background: linear-gradient(to bottom, rgba(255,215,0,0.08), rgba(218,165,32,0.02));
}
.pain-card-gold:hover {
  background: linear-gradient(to bottom, rgba(255,215,0,0.12), rgba(218,165,32,0.04));
  box-shadow: 0 12px 40px rgba(255,215,0,0.08);
}

.pain-card-sky {
  border-color: rgba(79,195,247,0.3);
  background: linear-gradient(to bottom, rgba(79,195,247,0.08), rgba(2,136,209,0.02));
}
.pain-card-sky:hover {
  background: linear-gradient(to bottom, rgba(79,195,247,0.12), rgba(2,136,209,0.04));
  box-shadow: 0 12px 40px rgba(79,195,247,0.08);
}

.pain-card-crimson {
  border-color: rgba(220,20,60,0.3);
  background: linear-gradient(to bottom, rgba(220,20,60,0.08), rgba(139,0,0,0.02));
}
.pain-card-crimson:hover {
  background: linear-gradient(to bottom, rgba(220,20,60,0.12), rgba(139,0,0,0.04));
  box-shadow: 0 12px 40px rgba(220,20,60,0.08);
}

.pain-card-emerald {
  border-color: rgba(16,185,129,0.3);
  background: linear-gradient(to bottom, rgba(16,185,129,0.08), rgba(5,150,105,0.02));
}
.pain-card-emerald:hover {
  background: linear-gradient(to bottom, rgba(16,185,129,0.12), rgba(5,150,105,0.04));
  box-shadow: 0 12px 40px rgba(16,185,129,0.08);
}

.pain-card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  margin-bottom: 16px;
}

.pain-card-icon svg { width: 24px; height: 24px; }

.pain-card-purple {
  border-color: rgba(168,85,247,0.3);
  background: linear-gradient(to bottom, rgba(168,85,247,0.08), rgba(124,58,237,0.02));
}
.pain-card-purple:hover {
  background: linear-gradient(to bottom, rgba(168,85,247,0.12), rgba(124,58,237,0.04));
  box-shadow: 0 12px 40px rgba(168,85,247,0.08);
}

.pain-card-orange {
  border-color: rgba(249,115,22,0.3);
  background: linear-gradient(to bottom, rgba(249,115,22,0.08), rgba(234,88,12,0.02));
}
.pain-card-orange:hover {
  background: linear-gradient(to bottom, rgba(249,115,22,0.12), rgba(234,88,12,0.04));
  box-shadow: 0 12px 40px rgba(249,115,22,0.08);
}

.pain-card-icon.gold { background: rgba(255,215,0,0.15); color: var(--gold); }
.pain-card-icon.sky { background: rgba(79,195,247,0.15); color: var(--sky); }
.pain-card-icon.crimson { background: rgba(220,20,60,0.15); color: var(--crimson); }
.pain-card-icon.emerald { background: rgba(16,185,129,0.15); color: var(--emerald); }
.pain-card-icon.purple { background: rgba(168,85,247,0.15); color: #a855f7; }
.pain-card-icon.orange { background: rgba(249,115,22,0.15); color: #f97316; }

.pain-card h3 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
  color: var(--white-100);
}

.pain-card p {
  color: var(--white-50);
  font-size: 14px;
  line-height: 1.8;
}

/* ---------- Pain Summary ---------- */
.pain-summary {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-top: 40px;
  padding: 28px;
  border-radius: 16px;
  border: 1px solid rgba(255,215,0,0.3);
  background: linear-gradient(to bottom, rgba(255,215,0,0.1), rgba(218,165,32,0.03));
  position: relative;
  overflow: hidden;
}

.pain-summary-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255,215,0,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
}

.pain-summary-icon svg { width: 22px; height: 22px; }

.pain-summary p {
  color: var(--white-70);
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- Evolution Blocks (定位升级 & 起名灵感) ---------- */
.evolution-blocks {
  max-width: 800px;
  margin: 56px auto 0;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.evolution-block {
  padding: 28px;
  border-radius: 16px;
  border: 1px solid var(--white-06);
  background: var(--white-02);
  transition: all 0.3s;
}

.evolution-block:hover {
  background: var(--white-04);
  border-color: var(--white-10);
}

.evolution-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 50px;
  background: rgba(218,165,32,0.1);
  border: 1px solid rgba(218,165,32,0.2);
  color: var(--gold);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 20px;
}

.evolution-label svg { width: 16px; height: 16px; }

.evolution-content p {
  color: var(--white-50);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 12px;
}

.evolution-content p:last-child {
  margin-bottom: 0;
}

/* ---------- Timeline (功能时间线) ---------- */
.timeline {
  max-width: 720px;
  margin: 56px auto 0;
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--white-10);
}

.timeline-item {
  position: relative;
  margin-bottom: 32px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -33px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--gold);
  border: 2px solid var(--bg-main);
  z-index: 1;
}

.timeline-dot.timeline-dot-future {
  background: transparent;
  border: 2px dashed var(--white-30);
}

.timeline-item-future .timeline-content {
  border-style: dashed;
}

.timeline-content {
  padding: 24px;
  border-radius: 16px;
  border: 1px solid var(--white-06);
  background: var(--white-02);
  transition: all 0.3s;
}

.timeline-content:hover {
  background: var(--white-04);
}

.timeline-date {
  color: var(--gold);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.timeline-title {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
  color: var(--white-100);
}

.timeline-desc {
  color: var(--white-50);
  font-size: 14px;
  line-height: 1.8;
}

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.timeline-tag {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 500;
  background: var(--white-03);
  border: 1px solid var(--white-06);
  color: var(--white-40);
}

.timeline-tag-done {
  background: rgba(218,165,32,0.1);
  border-color: rgba(218,165,32,0.2);
  color: var(--gold);
}

/* ---------- Appreciation Floating Popup ---------- */
.appreciation-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.appreciation-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.appreciation-panel {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  z-index: 201;
  width: 320px;
  max-width: 90vw;
  padding: 32px;
  border-radius: 20px;
  background: var(--bg-alt);
  border: 1px solid rgba(255,215,0,0.2);
  box-shadow: 0 24px 80px rgba(0,0,0,0.5);
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s ease;
}

.appreciation-panel.active {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, -50%) scale(1);
}

.appreciation-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white-40);
  transition: all 0.2s;
}

.appreciation-close:hover {
  background: var(--white-10);
  color: var(--white-80);
}

.appreciation-panel-header {
  margin-bottom: 24px;
}

.appreciation-panel-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}

.appreciation-panel-subtitle {
  font-size: 13px;
  color: var(--white-40);
}

.appreciation-panel-qr {
  margin-bottom: 20px;
}

.appreciation-qr-wrapper {
  display: inline-block;
  padding: 12px;
  border-radius: 12px;
  background: white;
}

.appreciation-qr-wrapper img {
  width: 180px;
  height: 180px;
  border-radius: 8px;
}

.appreciation-panel-footer {
  color: var(--white-30);
  font-size: 13px;
}

.appreciation-fab {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 150;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 50px;
  background: linear-gradient(135deg, rgba(220,20,60,0.9), rgba(255,215,0,0.8));
  color: white;
  font-weight: 500;
  font-size: 14px;
  box-shadow: 0 8px 24px rgba(220,20,60,0.3);
  cursor: pointer;
  transition: all 0.3s;
  animation: pulse-glow 3s ease-in-out infinite;
}

.appreciation-fab:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 32px rgba(220,20,60,0.5);
}

.appreciation-fab svg { flex-shrink: 0; }

.appreciation-fab-text {
  letter-spacing: 0.05em;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .dimensions-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .tips-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .navbar-links { display: none; }
  .mobile-toggle { display: block; }

  .hero-content { padding: 80px 16px 96px; }
  .hero-logo img { width: 80px; height: 80px; }
  .flow-connector { display: none; }

  .inspiration-hero-content { padding: 80px 16px 96px; }
  .inspiration-hero-logo img { width: 80px; height: 80px; }

  .dimensions-grid { grid-template-columns: 1fr; gap: 16px; }
  .features-grid { grid-template-columns: 1fr; gap: 16px; }
  .comparison-grid { grid-template-columns: 1fr; gap: 20px; }
  .scenarios-grid { grid-template-columns: 1fr; gap: 16px; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .tips-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .pain-cards { grid-template-columns: 1fr; gap: 16px; }
  .pain-summary { flex-direction: column; }
  .timeline { padding-left: 32px; }
  .timeline-dot { left: -25px; width: 10px; height: 10px; }
  .timeline::before { left: 11px; }
  .appreciation-fab { bottom: 20px; right: 20px; padding: 10px 16px; }
  .appreciation-fab-text { display: none; }

  .section-title { font-size: 1.75rem; }
}

@media (max-width: 480px) {
  .steps-grid { grid-template-columns: 1fr; }
  .hero-data-flow { gap: 6px; }
  .hero-badges { gap: 8px; }
  .hero-cta { flex-direction: column; }
  .btn-primary, .btn-secondary { width: 100%; justify-content: center; }
}

/* ============================================
   3.0 新增样式 - 六维协作
   ============================================ */

:root {
  --purple: #a855f7;
  --purple-dark: #7c3aed;
  --orange: #f97316;
  --orange-dark: #ea580c;
}

/* ---------- Nav Version Badge ---------- */
.nav-version {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 50px;
  background: linear-gradient(135deg, rgba(168,85,247,0.15), rgba(249,115,22,0.15));
  border: 1px solid rgba(168,85,247,0.3);
  color: var(--purple);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin: 0 4px;
}

/* ---------- Hero Version Tag ---------- */
.hero-version-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  animation: fadeInUp 0.7s ease-out 0.1s both;
}

.version-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--purple), var(--orange));
  font-size: 16px;
  font-weight: 900;
  color: white;
  letter-spacing: 0;
  box-shadow: 0 4px 20px rgba(168,85,247,0.4);
}

.version-text {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.15em;
  background: linear-gradient(90deg, var(--purple), var(--orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- New Badge in Hero ---------- */
.new-badge {
  background: linear-gradient(135deg, rgba(168,85,247,0.15), rgba(249,115,22,0.15));
  border-color: rgba(168,85,247,0.3);
  color: var(--purple);
}

.new-badge svg { width: 14px; height: 14px; }

.new-badge-wrap {
  background: linear-gradient(135deg, rgba(168,85,247,0.1), rgba(249,115,22,0.1));
  border-color: rgba(168,85,247,0.25);
  color: var(--purple);
}

/* ---------- Flow item new colors ---------- */
.flow-item .label.purple { color: var(--purple); }
.flow-item .label.orange { color: var(--orange); }

/* ---------- Six Column Dimensions Grid ---------- */
.dimensions-grid.six-cols {
  grid-template-columns: repeat(3, 1fr);
}

/* ---------- New Dimension Color Variants ---------- */
.dim-purple {
  border-color: rgba(168,85,247,0.3);
  background: linear-gradient(to bottom, rgba(168,85,247,0.15), rgba(124,58,237,0.03));
}
.dim-purple .glow-overlay { box-shadow: 0 0 40px rgba(168,85,247,0.08), 0 0 80px rgba(168,85,247,0.04); }
.dim-purple .dim-icon { background: rgba(168,85,247,0.15); }
.dim-purple h3 { color: var(--purple); }
.dim-purple .dot { background: var(--purple); }

.dim-orange {
  border-color: rgba(249,115,22,0.3);
  background: linear-gradient(to bottom, rgba(249,115,22,0.15), rgba(234,88,12,0.03));
}
.dim-orange .glow-overlay { box-shadow: 0 0 40px rgba(249,115,22,0.08), 0 0 80px rgba(249,115,22,0.04); }
.dim-orange .dim-icon { background: rgba(249,115,22,0.15); }
.dim-orange h3 { color: var(--orange); }
.dim-orange .dot { background: var(--orange); }

/* ---------- New Features Section ---------- */
.new-features-section {
  position: relative;
  padding: 80px 0 112px;
  background: var(--bg-card);
  overflow: hidden;
}

.new-features-section .section-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 500px;
  background: rgba(168,85,247,0.03);
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
}

.new-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.new-feature-card {
  padding: 28px;
  border-radius: 16px;
  border: 1px solid var(--white-06);
  background: var(--white-02);
  transition: all 0.3s;
}

.new-feature-card:hover {
  background: var(--white-04);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.2);
}

.new-feature-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.new-feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.new-feature-icon svg { width: 24px; height: 24px; }

.new-feature-icon.emerald { background: rgba(16,185,129,0.15); color: var(--emerald); }
.new-feature-icon.purple { background: rgba(168,85,247,0.15); color: var(--purple); }
.new-feature-icon.orange { background: rgba(249,115,22,0.15); color: var(--orange); }
.new-feature-icon.crimson { background: rgba(220,20,60,0.15); color: var(--crimson); }
.new-feature-icon.gold { background: rgba(255,215,0,0.15); color: var(--gold); }
.new-feature-icon.sky { background: rgba(79,195,247,0.15); color: var(--sky); }

.new-feature-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 50px;
  font-size: 11px;
  font-weight: 600;
  background: linear-gradient(135deg, rgba(168,85,247,0.15), rgba(249,115,22,0.15));
  color: var(--purple);
  border: 1px solid rgba(168,85,247,0.25);
  margin-bottom: 2px;
}

.new-feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.new-feature-card p {
  color: var(--white-50);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 16px;
}

.new-feature-sub {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.sub-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 50px;
  font-size: 11px;
  font-weight: 500;
  border: 1px solid;
}

.sub-tag.emerald { background: rgba(16,185,129,0.1); color: var(--emerald); border-color: rgba(16,185,129,0.2); }
.sub-tag.crimson { background: rgba(220,20,60,0.1); color: var(--crimson); border-color: rgba(220,20,60,0.2); }
.sub-tag.gold { background: rgba(255,215,0,0.1); color: var(--gold); border-color: rgba(255,215,0,0.2); }
.sub-tag.sky { background: rgba(79,195,247,0.1); color: var(--sky); border-color: rgba(79,195,247,0.2); }
.sub-tag.purple { background: rgba(168,85,247,0.15); color: #a855f7; border: 1px solid rgba(168,85,247,0.25); }
.sub-tag.orange { background: rgba(249,115,22,0.15); color: #f97316; border: 1px solid rgba(249,115,22,0.25); }
.sub-tag.gold-sub { background: rgba(255,215,0,0.15); color: var(--gold); border: 1px solid rgba(255,215,0,0.25); }

/* ---------- Feature badge new colors ---------- */
.feature-badge.gold { background: rgba(255,215,0,0.2); color: var(--gold); border-color: rgba(255,215,0,0.3); }

/* ---------- Comparison tag new colors ---------- */
.comparison-tag .tag-purple { color: #a855f7; font-weight: 500; }
.comparison-tag .tag-orange { color: #f97316; font-weight: 500; }

.comparison-list li .icon-circle.check-purple {
  background: rgba(168,85,247,0.15);
  color: #a855f7;
}

.comparison-list li .icon-circle.check-orange {
  background: rgba(249,115,22,0.15);
  color: #f97316;
}

/* ---------- Scenario icon new colors ---------- */
.scenario-icon.purple { background: rgba(168,85,247,0.15); color: #a855f7; }
.scenario-icon.orange { background: rgba(249,115,22,0.15); color: #f97316; }

/* ---------- FAQ highlight new colors ---------- */
.faq-item.highlight-purple { border-color: rgba(168,85,247,0.3); background: var(--white-03); }
.faq-item.highlight-orange { border-color: rgba(249,115,22,0.3); background: var(--white-03); }

/* ---------- Responsive for 6-column grid ---------- */
@media (max-width: 1024px) {
  .dimensions-grid.six-cols {
    grid-template-columns: repeat(2, 1fr);
  }
  .new-features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .dimensions-grid.six-cols {
    grid-template-columns: 1fr;
  }
  .new-features-grid {
    grid-template-columns: 1fr;
  }
  .nav-version { display: none; }
  .hero-data-flow {
    gap: 6px;
  }
  .flow-item {
    padding: 4px 10px;
  }
  .flow-item .emoji { font-size: 14px; }
  .flow-item .label { font-size: 12px; }
  .flow-connector {
    width: 16px;
  }
  .comparison-tag {
    font-size: 12px;
    gap: 4px;
    padding: 6px 10px;
  }
  .pwa-grid {
    grid-template-columns: 1fr;
  }
}

.hero-badge.new-badge {
  background: rgba(220,20,60,0.15) !important;
  border-color: rgba(220,20,60,0.3) !important;
  color: var(--crimson) !important;
}

/* ---------- PWA Section ---------- */
.pwa-section {
  position: relative;
  padding: 80px 0 112px;
  background: var(--bg-card);
  overflow: hidden;
}

.pwa-section .section-glow {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: rgba(168,85,247,0.04);
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
}

.pwa-badge-wrap {
  background: rgba(168,85,247,0.1) !important;
  border-color: rgba(168,85,247,0.2) !important;
  color: #a855f7 !important;
}

.pwa-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.pwa-card {
  padding: 28px;
  border-radius: 16px;
  border: 1px solid var(--white-06);
  background: var(--white-02);
  transition: all 0.3s;
}

.pwa-card:hover {
  background: var(--white-04);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.2);
}

.pwa-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  margin-bottom: 16px;
}

.pwa-icon svg { width: 22px; height: 22px; }

.pwa-icon.purple { background: rgba(168,85,247,0.15); color: #a855f7; }
.pwa-icon.sky { background: rgba(79,195,247,0.15); color: var(--sky); }
.pwa-icon.emerald { background: rgba(16,185,129,0.15); color: var(--emerald); }
.pwa-icon.orange { background: rgba(249,115,22,0.15); color: #f97316; }
.pwa-icon.crimson { background: rgba(220,20,60,0.15); color: var(--crimson); }
.pwa-icon.gold { background: rgba(255,215,0,0.15); color: var(--gold); }

.pwa-card h3 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.pwa-card p {
  color: var(--white-50);
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- Appreciation Panel ---------- */
.appreciation-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 200;
  backdrop-filter: blur(4px);
}

.appreciation-overlay.open { display: block; }

.appreciation-panel {
  position: fixed;
  bottom: 80px;
  right: 24px;
  width: 280px;
  background: linear-gradient(to bottom, #1e1e3a, #16162b);
  border: 1px solid rgba(218,165,32,0.3);
  border-radius: 16px;
  z-index: 201;
  overflow: hidden;
  transform: translateY(20px);
  opacity: 0;
  transition: all 0.3s;
  pointer-events: none;
}

.appreciation-panel.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.appreciation-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--white-40);
  transition: all 0.2s;
  z-index: 1;
}

.appreciation-close:hover { background: rgba(255,255,255,0.1); color: white; }

.appreciation-panel-header {
  padding: 24px 20px 12px;
  text-align: center;
}

.appreciation-panel-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.15em;
  margin-bottom: 4px;
}

.appreciation-panel-subtitle {
  font-size: 12px;
  color: var(--white-40);
}

.appreciation-panel-qr {
  padding: 8px 20px 16px;
  display: flex;
  justify-content: center;
}

.appreciation-qr-wrapper {
  width: 180px;
  height: 180px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(218,165,32,0.2);
}

.appreciation-qr-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.appreciation-panel-footer {
  padding: 12px 20px 20px;
  text-align: center;
  font-size: 12px;
  color: var(--white-30);
}

.appreciation-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 199;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 20px;
  border-radius: 50px;
  background: linear-gradient(135deg, rgba(220,20,60,0.9), rgba(139,0,0,0.9));
  color: white;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(220,20,60,0.3);
  transition: all 0.3s;
}

.appreciation-fab:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 24px rgba(220,20,60,0.4);
}

.appreciation-fab.hidden { display: none; }

.appreciation-fab-text {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.1em;
}