/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background: #0a0a0a;
    color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.title-divider {
    width: 100%;
    height: 20px;
    /* background: linear-gradient(90deg, #40e0d0, #00bfff); */
    margin: 10px 0;
}

/* Language Toggle */
.language-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    gap: 5px;
}

.lang-btn {
    background: rgba(64, 224, 208, 0.1);
    border: 1px solid rgba(64, 224, 208, 0.3);
    color: #40e0d0;
    padding: 8px 12px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 12px;
    font-weight: 500;
}

.lang-btn.active,
.lang-btn:hover {
    background: rgba(64, 224, 208, 0.2);
    border-color: #40e0d0;
    box-shadow: 0 0 10px rgba(64, 224, 208, 0.3);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    z-index: 999;
    padding: 15px 0;
    border-bottom: 1px solid rgba(64, 224, 208, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    color: #40e0d0;
}

.nav-logo i {
    font-size: 28px;
    animation: float 3s ease-in-out infinite;
}

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-menu a {
    color: #ffffff;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #40e0d0, #00bfff);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: 100%;
}

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

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(64, 224, 208, 0.1) 0%, rgba(10, 10, 10, 0.8) 70%);
}

.stars {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, #40e0d0, transparent),
        radial-gradient(2px 2px at 40px 70px, #00bfff, transparent),
        radial-gradient(1px 1px at 90px 40px, #ffffff, transparent),
        radial-gradient(1px 1px at 130px 80px, #40e0d0, transparent),
        radial-gradient(2px 2px at 160px 30px, #00bfff, transparent);
    background-repeat: repeat;
    background-size: 200px 100px;
    animation: twinkle 10s linear infinite;
}

.galaxy {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 800px;
    height: 800px;
    transform: translate(-50%, -50%);
    background: radial-gradient(ellipse at center, rgba(64, 224, 208, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    animation: rotate 30s linear infinite;
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    align-items: center;
    gap: 80px;
    padding: 120px 40px 80px;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.hero-text {
    max-width: 700px;
}

.hero-title {
    font-size: 3.2rem;
    font-weight: 700;
    margin-bottom: 30px;
    line-height: 1.2;
    color: #ffffff;
}

.coming-soon-subtitle {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #ffffff;
}

/* 字体变体选择 - 可以替换 .brand-name 的字体 */

/* 8-bit 游戏风格 (当前使用) */
.brand-name {
    display: inline-block;
    font-family: 'Press Start 2P', 'Orbitron', cursive;
    font-size: 0.85em;
    background: linear-gradient(135deg, #40e0d0, #00bfff, #7b68ee, #ff6b6b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 300% 300%;
    animation: brand-glow 3s ease-in-out infinite, brand-gradient 4s ease-in-out infinite;
    font-weight: 400;
    position: relative;
    text-shadow: 0 0 10px rgba(64, 224, 208, 0.2);
    letter-spacing: 2px;
    image-rendering: crisp-edges;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeSpeed;
}

/* 科幻未来风格 - 取消注释使用 Orbitron
.brand-name {
    display: inline-block;
    font-family: 'Orbitron', sans-serif;
    font-size: 1em;
    font-weight: 900;
    background: linear-gradient(135deg, #40e0d0, #00bfff, #7b68ee, #ff6b6b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 300% 300%;
    animation: brand-glow 3s ease-in-out infinite, brand-gradient 4s ease-in-out infinite;
    position: relative;
    text-shadow: 0 0 10px rgba(64, 224, 208, 0.2);
    letter-spacing: 3px;
    text-transform: uppercase;
}
*/

/* 电子音乐风格 - 取消注释使用 Audiowide
.brand-name {
    display: inline-block;
    font-family: 'Audiowide', cursive;
    font-size: 1.1em;
    font-weight: 400;
    background: linear-gradient(135deg, #40e0d0, #00bfff, #7b68ee, #ff6b6b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 300% 300%;
    animation: brand-glow 3s ease-in-out infinite, brand-gradient 4s ease-in-out infinite;
    position: relative;
    text-shadow: 0 0 10px rgba(64, 224, 208, 0.2);
    letter-spacing: 1px;
    transform: skew(-5deg);
}
*/

/* 终端风格 - 取消注释使用 VT323
.brand-name {
    display: inline-block;
    font-family: 'VT323', monospace;
    font-size: 1.3em;
    font-weight: 400;
    background: linear-gradient(135deg, #40e0d0, #00bfff, #7b68ee, #ff6b6b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 300% 300%;
    animation: brand-glow 3s ease-in-out infinite, brand-gradient 4s ease-in-out infinite;
    position: relative;
    text-shadow: 0 0 10px rgba(64, 224, 208, 0.2);
    letter-spacing: 1px;
}
*/

/* 街头风格 - 取消注释使用 Bungee
.brand-name {
    display: inline-block;
    font-family: 'Bungee', cursive;
    font-size: 0.9em;
    font-weight: 400;
    background: linear-gradient(135deg, #40e0d0, #00bfff, #7b68ee, #ff6b6b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 300% 300%;
    animation: brand-glow 3s ease-in-out infinite, brand-gradient 4s ease-in-out infinite;
    position: relative;
    text-shadow: 0 0 10px rgba(64, 224, 208, 0.2);
    letter-spacing: 1px;
    transform: perspective(500px) rotateX(15deg);
}
*/

.brand-name::before {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    z-index: -1;
    background: linear-gradient(135deg, #40e0d0, #00bfff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: blur(2px);
    opacity: 0.3;
}

@keyframes brand-glow {
    0%, 100% {
        filter: drop-shadow(0 0 3px rgba(64, 224, 208, 0.3));
        transform: translateY(0px);
    }
    50% {
        filter: drop-shadow(0 0 8px rgba(64, 224, 208, 0.5)) drop-shadow(0 0 12px rgba(0, 191, 255, 0.3));
        transform: translateY(-1px);
    }
}

@keyframes brand-gradient {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.gradient-text {
    background: linear-gradient(135deg, #40e0d0, #00bfff, #7b68ee);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-shift 3s ease-in-out infinite;
    display: block;
    margin-top: 8px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #b0b0b0;
    margin-bottom: 45px;
    line-height: 1.7;
    max-width: 600px;
}

.hero-cta {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.cta-button {
    padding: 16px 32px;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.cta-button.primary {
    background: linear-gradient(135deg, #40e0d0, #00bfff);
    color: #0a0a0a;
    box-shadow: 0 10px 30px rgba(64, 224, 208, 0.3);
}

.cta-button.primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(64, 224, 208, 0.4);
}

.cta-button.secondary {
    background: transparent;
    color: #40e0d0;
    border: 2px solid #40e0d0;
}

.cta-button.secondary:hover {
    background: rgba(64, 224, 208, 0.1);
    transform: translateY(-3px);
}

.hero-visual {
    position: relative;
    height: 500px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.floating-elements {
    position: relative;
    width: 100%;
    height: 100%;
}

.floating-card {
    position: absolute;
    background: rgba(64, 224, 208, 0.1);
    border: 1px solid rgba(64, 224, 208, 0.3);
    border-radius: 18px;
    padding: 20px;
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    min-width: 120px;
    max-width: 130px;
    text-align: center;
    animation: float-card 6s ease-in-out infinite;
    box-shadow: 0 8px 25px rgba(64, 224, 208, 0.1);
}

.floating-card:nth-child(1) {
    top: 5%;
    left: 8%;
    animation-delay: 0s;
}

.floating-card:nth-child(2) {
    top: 22%;
    right: 5%;
    animation-delay: 2s;
}

.floating-card:nth-child(3) {
    bottom: 5%;
    left: 12%;
    animation-delay: 4s;
}

.floating-card:nth-child(4) {
    top: 48%;
    left: 50%;
    animation-delay: 1s;
    transform: translate(-50%, -50%);
    animation: float-card-center 6s ease-in-out infinite;
}

.floating-card:nth-child(5) {
    top: 30%;
    right: 70%;
    animation-delay: 3s;
}

.floating-card i {
    font-size: 2rem;
    color: #40e0d0;
}

.floating-card span {
    font-size: 0.9rem;
    font-weight: 500;
    color: #ffffff;
}

/* ================== SLOGAN PAGES ================== */
.slogan-pages {
    position: relative;
}

.slogan-page {
    position: relative;
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    z-index: 1;
}

.slogan-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #0a0a0a;
    z-index: -1;
}

.slogan-stars {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, #40e0d0, transparent),
        radial-gradient(2px 2px at 40px 70px, #00bfff, transparent),
        radial-gradient(1px 1px at 90px 40px, #ffffff, transparent),
        radial-gradient(1px 1px at 130px 80px, #40e0d0, transparent),
        radial-gradient(2px 2px at 160px 30px, #00bfff, transparent);
    background-repeat: repeat;
    background-size: 200px 100px;
    animation: twinkle 10s linear infinite;
    z-index: -1;
}

.slogan-galaxy {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 800px;
    height: 800px;
    transform: translate(-50%, -50%);
    background: radial-gradient(ellipse at center, rgba(64, 224, 208, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    animation: rotate 30s linear infinite;
    z-index: -1;
}

.slogan-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 2;
    height: 100%;
}

.slogan-text {
    transition: all 1s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    opacity: 0;
    transform: translateY(80px);
}

.slogan-page.in-view .slogan-text {
    opacity: 1;
    transform: translateY(0);
}

.slogan-number {
    font-family: 'Orbitron', monospace;
    font-size: 1.5rem;
    color: #40e0d0;
    font-weight: 700;
    margin-bottom: 2rem;
    opacity: 0.3;
    letter-spacing: 3px;
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    transform: translateY(20px);
}

.slogan-page.in-view .slogan-number {
    opacity: 1;
    transform: translateY(0);
}

.slogan-title {
    font-family: 'Inter', sans-serif;
    font-size: 3.2rem;
    font-weight: 600;
    line-height: 1.3;
    color: #ffffff;
    margin-bottom: 2rem;
    text-shadow: 0 4px 20px rgba(64, 224, 208, 0.3);
}

.slogan-subtitle {
    font-family: 'Inter', sans-serif;
    font-size: 1.1rem;
    font-weight: 400;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.8);
    margin-top: 1.5rem;
}

.highlight-text {
    color: #ff6b6b;
    font-weight: 700;
    text-shadow: 0 0 20px rgba(255, 107, 107, 0.5);
}

.ai-native-text {
    background: linear-gradient(135deg, #40e0d0, #00bfff, #7b68ee, #ff6b6b);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
    background-size: 300% 300%;
    animation: brand-gradient 4s ease-in-out infinite;
}

.slogan-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    transition: all 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    opacity: 0;
    transform: translateX(60px);
}

.slogan-page.in-view .slogan-visual {
    opacity: 1;
    transform: translateX(0);
}

/* First Page - Academic Feast */
.feast-visual {
    width: 100%;
    max-width: 400px;
}

.dining-scene {
    position: relative;
    padding: 2rem;
}

.table-setup {
    display: flex;
    justify-content: space-around;
    margin-bottom: 2rem;
}

.academic-plate {
    width: 80px;
    height: 80px;
    background: rgba(64, 224, 208, 0.1);
    border: 1px solid rgba(64, 224, 208, 0.3);
    border-radius: 18px;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 25px rgba(64, 224, 208, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #40e0d0;
    animation: float-card 6s ease-in-out infinite;
}

.academic-plate:nth-child(1) {
    background: rgba(64, 224, 208, 0.1);
    border-color: rgba(64, 224, 208, 0.3);
    color: #40e0d0;
    animation-delay: 0s;
}

.academic-plate:nth-child(2) {
    background: rgba(0, 191, 255, 0.1);
    border-color: rgba(0, 191, 255, 0.3);
    color: #00bfff;
    animation-delay: 2s;
}

.academic-plate:nth-child(3) {
    background: rgba(255, 107, 107, 0.1);
    border-color: rgba(255, 107, 107, 0.3);
    color: #ff6b6b;
    animation-delay: 1s;
}

.companion-avatars {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 2rem;
}

.user-avatar, .panza-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    position: relative;
}

.user-avatar {
    background: rgba(255, 107, 107, 0.1);
    border: 1px solid rgba(255, 107, 107, 0.3);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.1);
    color: #ff6b6b;
    animation: float-card 6s ease-in-out infinite;
    animation-delay: 3s;
}

.panza-avatar {
    background: rgba(64, 224, 208, 0.1);
    border: 1px solid rgba(64, 224, 208, 0.3);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 25px rgba(64, 224, 208, 0.1);
    color: #40e0d0;
    animation: float-card 6s ease-in-out infinite;
    animation-delay: 4s;
}

@keyframes plateGlow {
    0%, 100% { 
        box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
        transform: scale(1);
    }
    50% { 
        box-shadow: 0 0 30px rgba(0, 212, 255, 0.6);
        transform: scale(1.05);
    }
}

/* Second Page - Operating System */
.os-visual {
    width: 100%;
    max-width: 450px;
}

.system-dashboard {
    background: rgba(64, 224, 208, 0.1);
    border: 1px solid rgba(64, 224, 208, 0.3);
    border-radius: 18px;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 25px rgba(64, 224, 208, 0.1);
    animation: float-card 6s ease-in-out infinite;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(0, 212, 255, 0.2);
}

.system-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #40e0d0;
    font-family: 'Orbitron', monospace;
    font-weight: 700;
}

.system-logo i {
    font-size: 1.2rem;
}

.status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #40e0d0;
    animation: statusPulse 2s ease-in-out infinite;
}

.system-windows {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.window {
    background: rgba(64, 224, 208, 0.05);
    border: 1px solid rgba(64, 224, 208, 0.2);
    border-radius: 12px;
    padding: 1rem;
    backdrop-filter: blur(5px);
    transition: all 0.3s ease;
    /* animation: float-card 6s ease-in-out infinite; */
}

.window:nth-child(2) {
    animation-delay: 2s;
}

.window:nth-child(3) {
    grid-column: span 2;
    animation-delay: 4s;
}

.window-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #40e0d0;
    font-size: 0.9rem;
    font-family: 'Inter', sans-serif;
    font-weight: 500;
}

@keyframes statusPulse {
    0%, 100% { 
        opacity: 1;
        transform: scale(1);
    }
    50% { 
        opacity: 0.6;
        transform: scale(1.2);
    }
}

@keyframes windowFloat {
    0%, 100% { 
        transform: translateY(0);
        box-shadow: 0 2px 10px rgba(0, 212, 255, 0.1);
    }
    50% { 
        transform: translateY(-5px);
        box-shadow: 0 8px 20px rgba(0, 212, 255, 0.2);
    }
}

/* Third Page - Knowledge Exploration */
.exploration-visual {
    width: 100%;
    max-width: 400px;
}

.knowledge-map {
    position: relative;
    width: 100%;
    height: 300px;
    border-radius: 18px;
    background: rgba(64, 224, 208, 0.1);
    border: 1px solid rgba(64, 224, 208, 0.3);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 25px rgba(64, 224, 208, 0.1);
    animation: float-card 6s ease-in-out infinite;
}

.map-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    gap: 1rem;
}

.explorer-dot {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: white;
    position: relative;
}

.explorer-dot.user {
    background: rgba(255, 107, 107, 0.1);
    border: 1px solid rgba(255, 107, 107, 0.3);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.1);
    color: #ff6b6b;
    animation: explorerPulse 3s ease-in-out infinite;
}

.explorer-dot.panza {
    background: rgba(64, 224, 208, 0.1);
    border: 1px solid rgba(64, 224, 208, 0.3);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 25px rgba(64, 224, 208, 0.1);
    color: #40e0d0;
    animation: explorerPulse 3s ease-in-out infinite 1.5s;
}

.unexplored-regions {
    position: absolute;
    width: 100%;
    height: 100%;
}

.region {
    position: absolute;
    width: 60px;
    height: 60px;
}

.region-1 {
    top: 20%;
    left: 15%;
    animation: regionGlow 4s ease-in-out infinite;
}

.region-2 {
    top: 15%;
    right: 15%;
    animation: regionGlow 4s ease-in-out infinite 1.3s;
}

.region-3 {
    bottom: 20%;
    right: 25%;
    animation: regionGlow 4s ease-in-out infinite 2.6s;
}

.region-marker {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.2), rgba(0, 212, 255, 0.2));
    border: 2px solid rgba(255, 255, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.2rem;
}

.connection-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.discovery-line {
    stroke: #00d4ff;
    stroke-width: 2;
    stroke-dasharray: 5,5;
    opacity: 0.6;
    animation: lineFlow 3s ease-in-out infinite;
}

@keyframes explorerPulse {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
    }
    50% { 
        transform: scale(1.1);
        box-shadow: 0 0 30px rgba(0, 212, 255, 0.6);
    }
}

@keyframes regionGlow {
    0%, 100% { 
        opacity: 0.5;
        transform: scale(0.9);
    }
    50% { 
        opacity: 1;
        transform: scale(1.1);
    }
}

@keyframes lineFlow {
    0% { 
        stroke-dashoffset: 20;
        opacity: 0.3;
    }
    50% { 
        stroke-dashoffset: 0;
        opacity: 0.8;
    }
    100% { 
        stroke-dashoffset: -20;
        opacity: 0.3;
    }
}

.floating-icons i:nth-child(1) {
    animation-delay: 0s;
}

.floating-icons i:nth-child(2) {
    animation-delay: 1s;
}

.floating-icons i:nth-child(3) {
    animation-delay: 2s;
}

.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
}

.scroll-arrow {
    width: 40px;
    height: 40px;
    border: 2px solid #00d4ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: bounce 2s infinite;
    cursor: pointer;
    transition: all 0.3s ease;
}

.scroll-arrow:hover {
    background: rgba(0, 212, 255, 0.2);
    transform: scale(1.1);
}

.scroll-arrow i {
    color: #00d4ff;
    font-size: 1.2rem;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}



@keyframes floatIcon {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .slogan-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
        max-width: 800px;
    }
    
    .slogan-visual {
        transform: translateY(60px);
    }
    
    .slogan-page.in-view .slogan-visual {
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .slogan-title {
        font-size: 2.5rem;
    }
    
    .slogan-subtitle {
        font-size: 1rem;
    }
    
    .slogan-content {
        padding: 0 1rem;
        gap: 2rem;
    }
    
    .academic-plate {
        width: 60px;
        height: 60px;
        font-size: 1.2rem;
    }
    
    .companion-avatars {
        gap: 2rem;
    }
    
    .user-avatar, .panza-avatar {
        width: 50px;
        height: 50px;
        font-size: 1rem;
    }
    
    .system-dashboard {
        padding: 1rem;
    }
    
    .knowledge-map {
        height: 250px;
    }
}

@media (max-width: 480px) {
    .slogan-title {
        font-size: 2rem;
        line-height: 1.2;
    }
    
    .slogan-subtitle {
        font-size: 0.9rem;
    }
    
    .slogan-content {
        padding: 0 0.5rem;
    }
    
    .academic-plate {
        width: 50px;
        height: 50px;
        font-size: 1rem;
    }
    
    .table-setup {
        gap: 0.5rem;
    }
}

/* Enhanced scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.scroll-indicator:hover {
    opacity: 1;
}

.scroll-text {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    font-family: 'Orbitron', monospace;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* Smooth scrolling for the entire page */
html {
    scroll-behavior: smooth;
}

/* Hide scroll indicator on last page */
.slogan-page:last-child .scroll-indicator {
    opacity: 0.7;
}

.slogan-page:last-child .scroll-indicator:hover {
    opacity: 1;
}

/* Features Section */
.features {
    padding: 120px 0;
    background: linear-gradient(180deg, rgba(10, 10, 10, 0.9) 0%, rgba(20, 20, 30, 0.9) 100%);
}

.section-title {
    text-align: center;
    font-size: 3.2rem;
    font-weight: 700;
    margin-bottom: 80px;
    background: linear-gradient(135deg, #40e0d0, #00bfff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-slider {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.slider-navigation {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    z-index: 10;
    pointer-events: none;
}

.slider-btn {
    background: rgba(64, 224, 208, 0.1);
    border: 2px solid rgba(64, 224, 208, 0.3);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #40e0d0;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    pointer-events: auto;
    transform: translateX(0);
}

.slider-btn.prev-btn {
    transform: translateX(-25px);
}

.slider-btn.next-btn {
    transform: translateX(25px);
}

.slider-btn:hover {
    background: rgba(64, 224, 208, 0.2);
    border-color: #40e0d0;
    box-shadow: 0 0 20px rgba(64, 224, 208, 0.3);
    transform: scale(1.1);
}

.slider-btn:hover.prev-btn {
    transform: translateX(-25px) scale(1.1);
}

.slider-btn:hover.next-btn {
    transform: translateX(25px) scale(1.1);
}

.slider-btn i {
    font-size: 1.2rem;
}

.features-wrapper {
    overflow: hidden;
    border-radius: 20px;
    position: relative;
}

.feature-card {
    background: rgba(64, 224, 208, 0.05);
    border: 1px solid rgba(64, 224, 208, 0.2);
    border-radius: 20px;
    padding: 45px;
    transition: all 0.5s ease;
    backdrop-filter: blur(10px);
    opacity: 0;
    transform: translateX(100%);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    min-height: 500px;
}

.feature-card.active {
    opacity: 1;
    transform: translateX(0);
    position: relative;
}

.feature-card:hover {
    transform: translateX(0) translateY(-5px);
    box-shadow: 0 20px 40px rgba(64, 224, 208, 0.1);
    border-color: rgba(64, 224, 208, 0.4);
}

.feature-card.active:hover {
    transform: translateX(0) translateY(-5px);
}

.feature-icon {
    background: linear-gradient(135deg, #40e0d0, #00bfff);
    width: 85px;
    height: 85px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 35px;
}

.feature-icon i {
    font-size: 2.2rem;
    color: #0a0a0a;
}

.feature-content h3 {
    font-size: 1.7rem;
    font-weight: 600;
    margin-bottom: 18px;
    color: #ffffff;
}

.feature-content p {
    color: #b0b0b0;
    margin-bottom: 30px;
    line-height: 1.7;
    font-size: 1.05rem;
}

.feature-placeholder {
    background: rgba(64, 224, 208, 0.1);
    border: 2px dashed rgba(64, 224, 208, 0.3);
    border-radius: 15px;
    height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.feature-placeholder:hover {
    border-style: solid;
    background: rgba(64, 224, 208, 0.15);
}

.placeholder-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    color: #40e0d0;
}

.placeholder-content i {
    font-size: 3.2rem;
    opacity: 0.7;
}

.placeholder-content span {
    font-weight: 500;
    opacity: 0.8;
    font-size: 1.05rem;
}

/* Slider Progress */
.slider-progress {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.progress-bar {
    width: 300px;
    height: 4px;
    background: rgba(64, 224, 208, 0.2);
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #40e0d0, #00bfff);
    border-radius: 2px;
    width: 0%;
    transition: width 0.5s ease;
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 20px;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3));
    animation: shimmer 2s ease-in-out infinite;
}

.slide-indicators {
    display: flex;
    gap: 12px;
    align-items: center;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(64, 224, 208, 0.3);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.indicator.active {
    background: linear-gradient(135deg, #40e0d0, #00bfff);
    box-shadow: 0 0 15px rgba(64, 224, 208, 0.5);
    transform: scale(1.2);
}

.indicator:hover {
    background: rgba(64, 224, 208, 0.6);
    transform: scale(1.1);
}

.indicator.active:hover {
    transform: scale(1.2);
}

@keyframes shimmer {
    0%, 100% { opacity: 0; }
    50% { opacity: 1; }
}

/* Advantages Section */
.advantages {
    padding: 120px 0;
    background: rgba(10, 10, 10, 0.95);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.advantage-item {
    text-align: center;
    padding: 35px 20px;
    background: rgba(64, 224, 208, 0.05);
    border-radius: 20px;
    border: 1px solid rgba(64, 224, 208, 0.1);
    transition: all 0.3s ease;
    min-width: 0; /* 确保内容可以收缩 */
}

.advantage-item:hover {
    transform: translateY(-5px);
    border-color: rgba(64, 224, 208, 0.3);
    box-shadow: 0 15px 30px rgba(64, 224, 208, 0.1);
}

.advantage-icon {
    background: linear-gradient(135deg, #40e0d0, #00bfff);
    width: 75px;
    height: 75px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
}

.advantage-icon i {
    font-size: 1.9rem;
    color: #0a0a0a;
}

.advantage-item h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 18px;
    color: #ffffff;
}

.advantage-item p {
    color: #b0b0b0;
    line-height: 1.7;
    font-size: 1.05rem;
}

/* Coming Soon Section */
.coming-soon {
    padding-top: 120px;
    padding-bottom: 80px;
    background: linear-gradient(135deg, rgba(64, 224, 208, 0.1) 0%, rgba(0, 191, 255, 0.1) 100%);
    text-align: center;
}

.coming-soon-text {
    font-size: 1rem;
    color: #b0b0b0;
    margin-bottom: 60px;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.waitlist-form {
    display: flex;
    justify-content: center;
    gap: 18px;
    margin-bottom: 80px;
    flex-wrap: wrap;
}

.waitlist-form input {
    padding: 18px 28px;
    border: 2px solid rgba(64, 224, 208, 0.3);
    border-radius: 50px;
    background: rgba(64, 224, 208, 0.1);
    color: #ffffff;
    font-size: 1.05rem;
    min-width: 320px;
    outline: none;
    transition: all 0.3s ease;
}

.waitlist-form input:focus {
    border-color: #40e0d0;
    box-shadow: 0 0 20px rgba(64, 224, 208, 0.2);
}

.waitlist-form input::placeholder {
    color: #666;
}

.submit-btn {
    padding: 18px 35px;
    background: linear-gradient(135deg, #40e0d0, #00bfff);
    border: none;
    border-radius: 50px;
    color: #0a0a0a;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 12px;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(64, 224, 208, 0.3);
}

.launch-timeline {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 0;
    flex-wrap: wrap;
    position: relative;
    max-width: 600px;
    margin: 0 auto;
}

/* 时间线连接线 */
.launch-timeline::before {
    content: '';
    position: absolute;
    top: 32px; /* 调整到图标中心 */
    left: 50%;
    transform: translateX(-50%);
    width: 70%;
    height: 3px;
    background: linear-gradient(90deg, 
        #40e0d0 0%, 
        #40e0d0 33%, 
        rgba(64, 224, 208, 0.3) 33%, 
        rgba(64, 224, 208, 0.3) 100%
    );
    border-radius: 2px;
    z-index: 1;
}

.timeline-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
    flex: 1;
    max-width: 180px;
    position: relative;
    z-index: 2;
}

/* 当前进度 - Beta Dev (有颜色) */
.timeline-item:nth-child(1) .timeline-icon {
    background: linear-gradient(135deg, #40e0d0, #00bfff);
    box-shadow: 0 0 20px rgba(64, 224, 208, 0.4);
    animation: pulse-active 2s ease-in-out infinite;
}

.timeline-item:nth-child(1) .timeline-content h4 {
    color: #40e0d0;
}

/* 未来进度 - 灰色状态 */
.timeline-item:nth-child(2) .timeline-icon,
.timeline-item:nth-child(3) .timeline-icon {
    background: #333333;
    border: 2px solid #555555;
}

.timeline-item:nth-child(2) .timeline-icon i,
.timeline-item:nth-child(3) .timeline-icon i {
    color: #666666;
}

.timeline-item:nth-child(2) .timeline-content h4,
.timeline-item:nth-child(3) .timeline-content h4 {
    color: #666666;
}

.timeline-icon {
    background: linear-gradient(135deg, #40e0d0, #00bfff);
    width: 65px;
    height: 65px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all 0.3s ease;
}

/* 活跃状态的脉冲动画 */
@keyframes pulse-active {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 20px rgba(64, 224, 208, 0.4);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 0 30px rgba(64, 224, 208, 0.6);
    }
}

.timeline-icon i {
    font-size: 1.6rem;
    color: #0a0a0a;
}

.timeline-content h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 8px;
    text-align: center;
}

.timeline-content p {
    color: #40e0d0;
    font-weight: 500;
    font-size: 1.05rem;
}

/* Footer */
.footer {
    background: rgba(10, 10, 10, 0.95);
    padding: 70px 0 35px;
    border-top: 1px solid rgba(64, 224, 208, 0.1);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 35px;
    flex-wrap: wrap;
    gap: 35px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 26px;
    font-weight: 700;
    color: #40e0d0;
}

.footer-logo i {
    font-size: 30px;
}

.footer-text p {
    color: #b0b0b0;
    font-size: 1.15rem;
}

.footer-social {
    display: flex;
    gap: 25px;
}

.footer-social a {
    color: #40e0d0;
    font-size: 1.6rem;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    color: #00bfff;
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 35px;
    border-top: 1px solid rgba(64, 224, 208, 0.1);
    color: #666;
    font-size: 1.05rem;
}

/* Animations */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes float-card {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(3deg); }
}

@keyframes float-card-center {
    0%, 100% { transform: translate(-50%, -50%) translateY(0px) rotate(0deg); }
    50% { transform: translate(-50%, -50%) translateY(-20px) rotate(3deg); }
}

@keyframes rotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes twinkle {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* Responsive Design */
@media (max-width: 1200px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 60px;
        padding: 120px 30px 80px;
    }
    
    .hero-text {
        max-width: none;
    }
    
    .hero-visual {
        height: 400px;
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
}

@media (max-width: 900px) {
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .advantage-item {
        padding: 30px 15px;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    .features-slider {
        max-width: 90%;
    }
    
    .slider-btn {
        width: 40px;
        height: 40px;
    }
    
    .slider-btn.prev-btn {
        transform: translateX(-15px);
    }
    
    .slider-btn.next-btn {
        transform: translateX(15px);
    }
    
    .slider-btn:hover.prev-btn {
        transform: translateX(-15px) scale(1.1);
    }
    
    .slider-btn:hover.next-btn {
        transform: translateX(15px) scale(1.1);
    }
    
    .progress-bar {
        width: 250px;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .advantage-item {
        padding: 30px 20px;
    }
    
    .launch-timeline {
        flex-direction: column;
        align-items: center;
        gap: 40px;
        max-width: 300px;
    }
    
    .launch-timeline::before {
        width: 3px;
        height: 60%;
        top: 50px;
        left: 50%;
        background: linear-gradient(180deg, 
            #40e0d0 0%, 
            #40e0d0 33%, 
            rgba(64, 224, 208, 0.3) 33%, 
            rgba(64, 224, 208, 0.3) 100%
        );
    }
    
    .timeline-item {
        max-width: 200px;
    }
    
    .waitlist-form {
        flex-direction: column;
        align-items: center;
    }
    
    .waitlist-form input {
        min-width: 280px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .floating-card:nth-child(4),
    .floating-card:nth-child(5) {
        display: none;
    }
}