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

html {
    overflow-y: scroll;
}

:root {
    --bg-dark: #f8fafc;
    --bg-card: rgba(255, 255, 255, 0.8);
    --border-glow: rgba(244, 180, 69, 0.2);
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --accent: #f4b445;
    --accent-rgb: 244, 180, 69;
    --emerald-rgb: 244, 180, 69;
    --accent-secondary: #ff7a59;
    --accent-secondary-rgb: 255, 122, 89;
    --accent-gradient: linear-gradient(135deg, rgba(var(--emerald-rgb), 0.98) 0%, rgba(var(--emerald-rgb), 0.92) 46%, rgba(var(--accent-secondary-rgb), 0.92) 100%);
    --accent-gradient-soft: linear-gradient(135deg, rgba(var(--emerald-rgb), 0.16) 0%, rgba(var(--emerald-rgb), 0.1) 46%, rgba(var(--accent-secondary-rgb), 0.08) 100%);
}

body {
    background: #f8fafc;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', Roboto, sans-serif;
    color: #1e293b;
    line-height: 1.55;
    scroll-behavior: smooth;
}

/* 滚动条美化 */
body::-webkit-scrollbar {
    width: 10px;
}

body::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 999px;
}

body::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 999px;
}

body::-webkit-scrollbar-thumb:hover {
    background: var(--accent-gradient);
}

/* 浅色网格背景 */
.bg-grid {
    position: fixed;
    inset: 0;
    z-index: -2;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.bg-grid::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(var(--accent-rgb), 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(var(--accent-rgb), 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(circle at 50% 30%, black 30%, transparent 80%);
}

.bg-grid::after {
    content: '';
    position: absolute;
    top: -20%;
    left: -20%;
    width: 140%;
    height: 140%;
    background: radial-gradient(circle at 30% 40%, rgba(var(--accent-rgb), 0.08), transparent 50%);
    pointer-events: none;
}

.container {
    max-width: 1050px;
    margin: 0 auto;

    position: relative;
    z-index: 2;
}

/* 导航栏 - 浅色毛玻璃 */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 22px 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(var(--accent-rgb), 0.1);
}

.nav-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}

.logo {
    position: relative;
    display: inline-flex;
    align-items: baseline;
    gap: 2px;
    overflow: visible;
    text-decoration: none;
    color: inherit;
}

.logo-text {
    position: relative;
    z-index: 2;
    font-size: 20px;
    font-weight: 900;
    font-style: italic;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 6px 18px rgba(var(--accent-rgb), 0.14);
}

.logo-sub {
    position: relative;
    z-index: 1;
    font-size: 20px;
    font-weight: 900;
    font-style: italic;
    letter-spacing: 0.02em;
    color: #111111;
    margin-left: 0;
    transform: translateY(-2px);
}

.logo::before {
    content: "";
    position: absolute;
    left: 28px;
    top: 10px;
    width: 22px;
    height: 2px;
    border-radius: 999px;
    background: linear-gradient(90deg, rgba(var(--accent-rgb), 0), rgba(var(--accent-rgb), 0.78), rgba(var(--accent-secondary-rgb), 0.82));
    box-shadow: 0 0 10px rgba(var(--accent-rgb), 0.16);
    transform: rotate(-18deg);
    transform-origin: left center;
    pointer-events: none;
}

.logo-sub::before {
    content: "";
    position: absolute;
    left: -8px;
    top: -16px;
    width: 44px;
    height: 24px;
    background:
        radial-gradient(20px 12px at 34% 100%, transparent 77%, rgba(var(--accent-secondary-rgb), 0.22) 81%, transparent 86%),
        radial-gradient(28px 16px at 42% 100%, transparent 80%, rgba(var(--accent-rgb), 0.16) 84%, transparent 89%);
    pointer-events: none;
    animation: logoSignalPulse 2.8s ease-in-out infinite;
}

.logo-sub::after {
    content: "";
    position: absolute;
    left: -8px;
    top: -9px;
    width: 22px;
    height: 3px;
    border-radius: 999px;
    background: linear-gradient(90deg, rgba(var(--accent-secondary-rgb), 0), rgba(255, 255, 255, 0.98), rgba(var(--accent-rgb), 0.7), rgba(var(--accent-secondary-rgb), 0));
    box-shadow: 0 0 10px rgba(var(--accent-secondary-rgb), 0.18);
    transform: rotate(-14deg);
    animation: logoSignalSweep 2.8s ease-in-out infinite;
    pointer-events: none;
}

@keyframes logoSignalSweep {

    0%,
    100% {
        transform: translateX(-4px) rotate(-14deg);
        opacity: 0.18;
    }

    45% {
        transform: translateX(12px) rotate(-14deg);
        opacity: 1;
    }

    70% {
        transform: translateX(22px) rotate(-14deg);
        opacity: 0.55;
    }
}

@keyframes logoSignalPulse {

    0%,
    100% {
        opacity: 0.48;
        transform: translateX(0);
    }

    50% {
        opacity: 0.92;
        transform: translateX(1px);
    }
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-link {
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    color: #64748b;
    transition: all 0.2s;
    cursor: pointer;
}

.nav-link:hover {
    color: var(--accent);
}

.nav-link-button {
    appearance: none;
    border: 0;
    padding: 0;
    background: transparent;
    font: inherit;
}

.nav-menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1.5px solid rgba(var(--accent-rgb), 0.22);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.78);
    color: var(--accent-secondary);
    box-shadow: 0 12px 28px rgba(var(--accent-rgb), 0.1);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.nav-menu-toggle:hover {
    transform: translateY(-1px);
    border-color: rgba(var(--accent-rgb), 0.34);
    box-shadow: 0 16px 32px rgba(var(--accent-rgb), 0.12);
    background: rgba(255, 255, 255, 0.92);
}

.nav-menu-toggle:focus-visible {
    outline: 2px solid rgba(var(--accent-rgb), 0.24);
    outline-offset: 2px;
}

.nav-menu-toggle svg {
    transition: transform 0.25s ease;
}

body.nav-menu-open .nav-menu-toggle svg {
    transform: rotate(90deg);
}

.btn-outline {
    border-radius: 999px;
    font-size: 18px;
    line-height: 1;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    background: var(--accent-gradient-soft);
    border: 1.5px solid rgba(var(--accent-rgb), 0.26);
    padding: 11px 30px;
    color: var(--accent);
    transition: box-shadow 0.2s ease, border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
    cursor: pointer;
    position: relative;
    isolation: isolate;
    overflow: hidden;
    box-shadow:
        0 14px 34px rgba(99, 151, 245, 0.16),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.btn-outline::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    background: var(--accent-gradient);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.btn-primary,
.hero .btn-primary {
    isolation: isolate;
    position: relative;
}

.btn-primary>svg,
.btn-primary>span,
.btn-outline>svg,
.btn-outline>span {
    position: relative;
    z-index: 1;
}

.btn-outline:hover {
    border-color: var(--accent);
    background: var(--accent-gradient-soft);
    color: #ffffff;
    box-shadow:
        0 18px 42px rgba(99, 151, 245, 0.22),
        inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.btn-outline:hover::before {
    opacity: 1;
}

.btn-outline:hover>svg,
.btn-outline:hover>span {
    color: #ffffff;
}

.btn-primary {
    border-radius: 999px;
    font-size: 18px;
    line-height: 1;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--accent-gradient);
    border: none;
    padding: 12px 30px;
    color: #fff;
    cursor: pointer;
    transition: box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
    box-shadow: 0 16px 36px rgba(99, 151, 245, 0.24);
}

.btn-primary:hover {
    box-shadow: 0 20px 46px rgba(99, 151, 245, 0.3);
}

/* 导航栏客服按钮专用样式 - 精致卡片风格 */
.nav-btn-chat {
    background: linear-gradient(135deg, rgba(251, 146, 96, 0.08) 0%, rgba(255, 122, 89, 0.06) 100%);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1.5px solid rgba(251, 146, 96, 0.28);
    color: var(--accent-secondary) !important;
    padding: 10px 20px !important;
    font-size: 0.88rem;
    font-weight: 600;
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    box-shadow: 
        0 4px 16px rgba(251, 146, 96, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.nav-btn-chat::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(251, 146, 96, 0.6), rgba(255, 122, 89, 0.6), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.nav-btn-chat::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, rgba(255, 122, 89, 0.6), rgba(251, 146, 96, 0.8));
    transform: translateX(-50%);
    transition: width 0.35s ease;
}

.nav-btn-chat:hover::before {
    opacity: 1;
}

.nav-btn-chat:hover::after {
    width: 80%;
}

.nav-btn-chat svg {
    width: 17px;
    height: 17px;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    z-index: 2;
}

.nav-btn-chat:hover svg {
    transform: scale(1.2);
}

/* Hero区域 - 深色主题更精致版 */
.hero {
    height: 650px;
    text-align: center;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    margin-bottom: 60px;
    background:
        radial-gradient(ellipse at 5% 20%, rgba(59, 130, 246, 0.12) 0%, transparent 52%),
        radial-gradient(ellipse at 95% 30%, rgba(251, 146, 96, 0.22) 0%, transparent 48%),
        radial-gradient(ellipse at 50% 85%, rgba(244, 180, 69, 0.16) 0%, transparent 55%),
        linear-gradient(180deg, #0b0b18 0%, #141428 25%, #181834 50%, #141428 75%, #0b0b18 100%);
}

.tech-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
    z-index: 1;
    opacity: 0.42;
}

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

    100% {
        transform: translateX(100%);
    }
}

.tech-line {
    position: absolute;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(var(--accent-rgb), 0.06), rgba(var(--accent-rgb), 0.06), transparent);
    animation: techLineMove 5.5s linear infinite;
    filter: blur(0.2px);
}

.tech-line-1 {
    top: 22%;
    width: 42%;
    animation-duration: 6s;
}

.tech-line-2 {
    top: 68%;
    width: 36%;
    animation-duration: 7s;
    animation-delay: 1.4s;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(rgba(255, 255, 255, 0.035)1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.035)1px, transparent 1px);
    background-size: 44px 44px, 44px 44px;
    mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.24), transparent 88%);
    opacity: 0.22;
    pointer-events: none;
}

.hero::after {
    content: "";
    position: absolute;
    top: -18%;
    right: -8%;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 197, 94, 0.14), transparent 72%);
    filter: blur(34px);
    opacity: 0.32;
    animation: heroFloatWide 12s ease-in-out infinite;
    pointer-events: none;
}

@keyframes heroFloatWide {

    0%,
    100% {
        transform: translate3d(0, 0, 0);
    }

    50% {
        transform: translate3d(30px, -18px, 0);
    }
}

.hero-panel {
    position: relative;
    padding: 74px 36px 28px;
    z-index: 10;
}

.hero-panel::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 30px;
    width: min(880px, 100%);
    height: calc(100% - 20px);
    transform: translateX(-50%);
    background: radial-gradient(circle at 50% 18%, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.08) 36%, rgba(255, 255, 255, 0.02) 64%, rgba(255, 255, 255, 0) 100%);
    filter: blur(22px);
    pointer-events: none;
    z-index: -1;
}

@keyframes heroPulse {

    0%,
    100% {
        opacity: 0.1;
        transform: scale(1);
    }

    50% {
        opacity: 0.24;
        transform: scale(1.08);
    }
}

@keyframes drift {

    0%,
    100% {
        transform: translate3d(0, 0, 0);
    }

    50% {
        transform: translate3d(0, -18px, 0);
    }
}

.hero-panel .hero-orb-1,
.hero-panel .hero-orb-2 {
    position: absolute;
    border-radius: 999px;
    filter: blur(28px);
    opacity: 0.24;
    mix-blend-mode: normal;
    pointer-events: none;
}

.hero-panel .hero-orb-1 {
    top: -46px;
    right: -24px;
    width: 188px;
    height: 188px;
    background: radial-gradient(circle, rgba(255, 122, 89, 0.26), transparent 70%);
    animation: heroPulse 9s ease-in-out infinite;
}

.hero-panel .hero-orb-2 {
    left: -34px;
    bottom: -64px;
    width: 220px;
    height: 220px;
    background: radial-gradient(circle, rgba(244, 180, 69, 0.24), transparent 70%);
    animation: drift 14s ease-in-out infinite;
}

.hero .btn-primary {
    background: var(--accent-gradient);
    color: #fff !important;
    box-shadow: 0 18px 40px rgba(99, 151, 245, 0.26);
    padding: 15px 36px;
    font-size: 18px;
    border: none;
}



.hero-title {
    max-width: 960px;
    margin: 32px auto 0;
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #ffffff 0%, #ffffff 45%, #fed7aa 75%, #ffffff 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 0 26px rgba(248, 250, 252, 0.12);
}

@keyframes heroTitle3DRotate {

    0%,
    100% {
        transform: perspective(1000px) rotateX(0deg);
    }

    25% {
        transform: perspective(1000px) rotateX(15deg);
    }

    50% {
        transform: perspective(1000px) rotateX(0deg);
    }

    75% {
        transform: perspective(1000px) rotateX(-15deg);
    }
}

.hero-sub {
    max-width: 720px;
    margin: 24px auto 0;
    font-size: 1.15rem;
    color: rgba(226, 232, 240, 0.85);
    margin-bottom: 50px;
    letter-spacing: 0.01em;
}

.hero-download-grid {
    display: grid;
    grid-template-columns: repeat(3, 300px);
    justify-content: center;
    align-items: stretch;
    gap: 32px;
    margin: 34px auto 56px;
    max-width: 964px;
}

.hero-download-card {
    --download-accent: var(--accent-secondary);
    --download-accent-rgb: var(--accent-secondary-rgb);
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    text-align: center;
    width: 300px;
    min-width: 300px;
    max-width: 300px;
    height: 320px;
    min-height:280px;
    max-height: 280px;
    padding: 35px 14px;
    box-sizing: border-box;
    overflow: hidden;
    border-radius: 24px;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.10) 0%, rgba(255, 255, 255, 0.04) 100%);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow:
        0 16px 40px rgba(0, 0, 0, 0.22),
        inset 0 1px 0 rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    transition: all 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.hero-download-default,
.hero-download-qr-view,
.hero-download-source-view {
    width: 100%;
    min-height: 100%;
}

.hero-download-default {
    display: flex;
    flex-direction: column;
    align-items: center;
    box-sizing: border-box;
}

.hero-download-qr-view {
    display: none;
    align-items: center;
    flex-direction: column;
    justify-content: center;
}

.hero-download-source-view {
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    text-align: center;
    gap: 10px;
    padding: 10px 4px;
    box-sizing: border-box;
}

.hero-download-card.is-qr-visible .hero-download-default {
    display: none;
}

.hero-download-card.is-qr-visible .hero-download-qr-view {
    display: flex;
}

.hero-download-card.is-source-visible .hero-download-default {
    display: none;
}

.hero-download-card.is-source-visible .hero-download-source-view {
    display: flex;
}

.hero-download-card:hover {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.14) 0%, rgba(255, 255, 255, 0.05) 100%);
    border-color: rgba(251, 146, 96, 0.32);
    transform: translateY(-6px);
    box-shadow: 
        0 24px 48px rgba(0, 0, 0, 0.32),
        0 0 40px rgba(251, 146, 96, 0.12),
        inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.hero-download-icon {
    width: 76px;
    height: 70px;
    border-radius: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(251, 146, 96, 0.25) 0%, rgba(255, 122, 89, 0.15) 100%);
    border: 1.5px solid rgba(251, 146, 96, 0.3);
    box-shadow:
        0 12px 28px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    color: #ffffff;
    transition: all 0.3s ease;
}

.hero-download-card:hover .hero-download-icon {
    background: linear-gradient(135deg, rgba(251, 146, 96, 0.35) 0%, rgba(255, 122, 89, 0.25) 100%);
    border-color: rgba(251, 146, 96, 0.45);
    transform: scale(1.08);
}

.hero-download-icon svg {
    width: 30px;
    height: 30px;
}

.hero-download-title {
    margin-top: 14px;
    font-size: 1.14rem;
    line-height: 1.18;
    font-weight: 800;
    color: #f8fafc;
}

.hero-download-desc {
    margin-top: 6px;
    max-width: 220px;
    font-size: 12.5px;
    line-height: 1.6;
    color: rgba(226, 232, 240, 0.74);
    min-height: 38px;
    font-weight: 500;
}

.hero-download-btn {
    margin-top: 14px;
    min-width: 126px;
    min-height: 40px;
    padding: 9px 18px;
    border-radius: 999px;
    background: var(--accent-gradient);
    border: none;
    color: #ffffff;
    text-decoration: none;
    font-size: 14px;
    line-height: 1.35;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 18px 38px rgba(var(--accent-secondary-rgb), 0.28);
    transition: transform 0.22s ease, box-shadow 0.22s ease, opacity 0.22s ease, filter 0.22s ease;
}

.hero-download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 22px 42px rgba(var(--accent-secondary-rgb), 0.34);
    filter: saturate(1.06) brightness(1.02);
}

.hero-download-btn-secondary {
    margin-top: 16px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.16) 0%, rgba(255, 255, 255, 0.08) 100%);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 18px 38px rgba(15, 23, 42, 0.2);
    color: #ffffff;
}

.hero-download-source-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 24px;
    padding: 0 10px;
    border-radius: 999px;
    background: rgba(251, 146, 96, 0.16);
    border: 1px solid rgba(251, 146, 96, 0.24);
    color: #fed7aa;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.hero-download-source-title {
    margin-top: 0;
    font-size: 0.98rem;
    line-height: 1.25;
    font-weight: 800;
    color: #ffffff;
    text-shadow: 0 2px 10px rgba(15, 23, 42, 0.28);
}

.hero-download-source-desc {
    margin-top: 0;
    max-width: 242px;
    font-size: 12px;
    line-height: 1.62;
    color: rgba(255, 244, 230, 0.96);
    font-weight: 400;
    text-shadow: 0 2px 10px rgba(15, 23, 42, 0.22);
}

.hero-download-qr-box {
    width: 140px;
    height: 140px;
    padding: 8px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow:
        0 18px 40px rgba(0, 0, 0, 0.24),
        inset 0 1px 0 rgba(255, 255, 255, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-download-qr-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    border-radius: 10px;
}

.hero-download-qr-title {
    margin-top: 10px;
    font-size: 0.98rem;
    line-height: 1.2;
    font-weight: 800;
    color: #f8fafc;
}

.hero-download-qr-desc {
    margin-top: 6px;
    max-width: 210px;
    font-size: 12px;
    line-height: 1.5;
    color: rgba(226, 232, 240, 0.78);
    font-weight: 500;
}

.hero-download-qr-empty {
    font-size: 13px;
    line-height: 1.5;
    color: #475569;
    font-weight: 700;
    text-align: center;
    padding: 0 10px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    transform: translateY(40px);
    gap: 20px;
}

.stat-item {
    min-width: 150px;
    padding: 0 20px;
    text-align: center;
}

.stat-number {
    font-size: 2.15rem;
    font-weight: 760;
    color: #f8fafc;
    line-height: 1;
}

.stat-label {
    margin-top: 8px;
    font-size: 0.8rem;
    color: rgba(226, 232, 240, 0.66);
    letter-spacing: 0.08em;
}



.section-head {
    text-align: center;
    margin-bottom: 56px;
    margin-top: 20px;
}

.section-title {
    font-size: 2.24rem;
    font-weight: 700;
    background: linear-gradient(135deg, #0f172a, var(--accent-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.section-title-mobile-only {
    display: none;
}

.section-sub {
    max-width: 820px;
    margin: 5px auto 0;
    font-size: 16px;
    color: #64748b;
    line-height: 1.75;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.features-grid.features-grid-single {
    grid-template-columns: minmax(0, 1000px);
    justify-content: center;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.advantage-card {
    --adv-accent: var(--accent);
    --adv-accent-rgb: var(--accent-rgb);
    position: relative;
    padding: 36px 32px 32px;
    border-radius: 28px;
    border: 1.5px solid rgba(255, 255, 255, 0.5);
    background: linear-gradient(145deg,
            rgba(255, 255, 255, 0.95) 0%,
            rgba(255, 255, 255, 0.88) 50%,
            rgba(248, 250, 252, 0.92) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow:
        0 20px 60px rgba(var(--accent-rgb), 0.08),
        0 8px 24px rgba(15, 23, 42, 0.04),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.advantage-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at top left,
            rgba(var(--accent-secondary-rgb), 0.08) 0%,
            transparent 50%),
        radial-gradient(circle at bottom right,
            rgba(var(--accent-rgb), 0.06) 0%,
            transparent 50%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.advantage-card::after {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg,
            transparent 40%,
            rgba(255, 255, 255, 0.4) 50%,
            transparent 60%);
    opacity: 0;
    transform: rotate(0deg) translateX(-100%);
    transition: opacity 0.6s ease, transform 0.6s ease;
    pointer-events: none;
}

.advantage-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow:
        0 30px 80px rgba(var(--accent-rgb), 0.12),
        0 15px 40px rgba(15, 23, 42, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 1);
    border-color: rgba(var(--accent-rgb), 0.22);
}

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

.advantage-card:hover::after {
    opacity: 0.6;
    transform: rotate(0deg) translateX(100%);
}

.advantage-head {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
}

.advantage-icon {
    width: 72px;
    height: 72px;
    border-radius: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(145deg,
            rgba(var(--accent-secondary-rgb), 0.1) 0%,
            rgba(var(--accent-rgb), 0.08) 100%);
    border: 2px solid rgba(var(--accent-rgb), 0.14);
    box-shadow:
        inset 0 2px 8px rgba(var(--accent-secondary-rgb), 0.06),
        0 8px 24px rgba(var(--accent-rgb), 0.08);
    flex-shrink: 0;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.advantage-icon::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 30%,
            rgba(255, 255, 255, 0.7) 0%,
            transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.advantage-icon svg {
    width: 36px;
    height: 36px;
    stroke: var(--accent);
    fill: none;
    stroke-width: 2.2;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: all 0.4s ease;
    z-index: 1;
    position: relative;
}

.advantage-card:hover .advantage-icon {
    background: var(--accent-gradient);
    border-color: transparent;
    box-shadow:
        0 12px 32px rgba(var(--accent-rgb), 0.18),
        0 6px 16px rgba(var(--accent-secondary-rgb), 0.12);
    transform: rotate(5deg) scale(1.1);
}

.advantage-card:hover .advantage-icon::before {
    opacity: 1;
}

.advantage-card:hover .advantage-icon svg {
    stroke: #ffffff;
    transform: scale(1.1);
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.2));
}

.advantage-title {
    font-size: 1.28rem;
    font-weight: 800;
    background: linear-gradient(135deg, #0f172a 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1.25;
    margin: 0;
    letter-spacing: 0.01em;
}

.advantage-desc {
    font-size: 0.98rem;
    color: #475569;
    line-height: 1.8;
    margin: 0;
    font-weight: 500;
}

.card {
    --card-accent: var(--accent);
    --card-title: #1e293b;
    --card-copy: #4b5563;
    --card-accent-soft: rgba(var(--accent-rgb), 0.08);
    --card-accent-rgb: var(--accent-rgb);
    position: relative;
    min-height: 220px;
    padding: 35px 26px 30px;
    border-radius: 24px;
    border: 1.5px solid rgba(var(--accent-rgb), 0.24);
    background: var(--accent-gradient-soft);
    box-shadow:
        0 10px 24px rgba(148, 163, 184, 0.14),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease, background 0.3s ease;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.14), rgba(var(--accent-secondary-rgb), 0.08));
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: 0;
}

.card::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
    z-index: 1;
    pointer-events: none;
}

.card>* {
    position: relative;
    z-index: 2;
}

.card:hover {
    border-color: var(--accent);
    background: var(--accent-gradient-soft);
    box-shadow: 0 12px 28px rgba(var(--accent-rgb), 0.14);
    transform: translateY(-5px);
}

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

.card-head {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 22px;
    margin-bottom: 18px;
}

.card-icon {
    width: 76px;
    height: 76px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow:
        inset 0 1px 1px rgba(255, 255, 255, 0.8),
        0 8px 20px rgba(var(--card-accent-rgb), 0.14);
    border: 1.5px solid rgba(255, 255, 255, 0.8);
    flex-shrink: 0;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
}

.card:hover .card-icon {
    background: #ffffff;
    transform: scale(1.05) translateY(-5px);
    box-shadow: 0 15px 30px rgba(var(--card-accent-rgb), 0.22);
    border-color: rgba(var(--card-accent-rgb), 0.4);
}

.card-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--card-accent);
    stroke-width: 2.5;
    fill: none;
}

.card h3 {
    font-size: 1.25rem;
    font-weight: 800;
    margin: 0;
    color: var(--card-title);
    letter-spacing: 0.05em;
    text-shadow: 0 1px 0 rgba(255, 255, 255, 0.45);
}

.card p {
    font-size: 14.5px;
    line-height: 1.7;
    color: #7c4a22;

    flex-grow: 1;
    letter-spacing: 0.01em;

    font-weight: 500;
    opacity: 0.7;
    text-shadow: 0 1px 0 rgba(255, 255, 255, 0.4);

    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: all 0.3s ease;
}

.card:hover p {
    opacity: 1;
    color: #6a3418;
}

#intro .card h3 {
    line-height: 1.3;
}

#intro .intro-card {
    min-height: auto;
    padding: 50px;
    text-align: left;
    align-items: stretch;
    background: #ffffff;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 32px;
    border: 1px solid rgba(var(--accent-rgb), 0.1);
    box-shadow: 0 10px 10px rgba(0, 0, 0, 0.02);
    transition: none;
}

#intro .intro-card::before,
#intro .intro-card::after {
    display: none;
}

#intro .intro-card:hover {
    border-color: rgba(var(--accent-rgb), 0.1);
    background: #ffffff;
    box-shadow: 0 10px 10px rgba(0, 0, 0, 0.02);
    transform: none;
}

#intro .intro-card .card-icon {
    width: 72px;
    height: 72px;
    border-radius: 22px;
    background: linear-gradient(180deg, rgba(var(--accent-rgb), 0.1), rgba(var(--accent-secondary-rgb), 0.06));
    border: 1px solid rgba(var(--accent-rgb), 0.14);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.9),
        0 16px 28px rgba(var(--accent-rgb), 0.12);
    transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

#intro .intro-card .card-icon svg {
    width: 38px;
    height: 38px;
    display: block;
    color: var(--accent-secondary);
}

#intro .intro-card:hover .card-icon {
    background: linear-gradient(180deg, rgba(var(--accent-rgb), 0.14), rgba(var(--accent-secondary-rgb), 0.08));
    border-color: rgba(var(--accent-rgb), 0.18);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.94),
        0 18px 32px rgba(var(--accent-rgb), 0.14);
    transform: none;
}

#intro .intro-card .card-head {
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    gap: 16px;
    margin-bottom: 22px;
    padding-bottom: 0;
    border-bottom: 0;
    text-align: left;
}

#intro .intro-card .card-head-copy {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
    align-items: flex-start;
    text-align: left;
}

#intro .intro-card .card-head-copy h3 {
    font-size: 1.7rem;
    line-height: 1.22;
    letter-spacing: 0.01em;
    white-space: nowrap;
    color: #0f172a;
    text-shadow: none;
    margin: 0;
}

#intro .intro-card-lead {
    margin: 0;
    font-size: 0.96rem;
    line-height: 1.75;
    color: #312e81;
    font-weight: 500;
    opacity: 0.84;
    max-width: 720px;
    text-align: left;
    text-shadow: none;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

#intro .intro-card:hover .intro-card-lead,
#intro .intro-card:hover .intro-card-body p {
    color: #1e1b4b;
    opacity: 1;
}

#intro .intro-card-body {
    display: grid;
    gap: 18px;
}

#intro .intro-card-body p {
    max-width: none;
    margin: 0;
    font-size: 15.5px;
    line-height: 1.95;
    color: #334155;
    opacity: 0.92;
    font-weight: 500;
    text-align: left;
    display: block;
    overflow: visible;
    text-shadow: none;
}

.intro-card {
    min-height: auto;
    padding: 28px 30px;
    text-align: left;
    align-items: stretch;
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.72) 0 30px, #ffffff 30px 100%);
    border-radius: 28px;
    border: 1px solid rgba(148, 163, 184, 0.14);
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.04);
    transition: none;
}

.intro-card::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    height: 30px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0));
    pointer-events: none;
}

.intro-card::after {
    display: none;
}

.intro-card:hover {
    border-color: rgba(148, 163, 184, 0.2);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.76) 0 30px, #ffffff 30px 100%);
    box-shadow: 0 14px 34px rgba(15, 23, 42, 0.05);
    transform: none;
}

.intro-card .card-icon {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    background: linear-gradient(180deg, var(--package-accent-soft, rgba(99, 151, 245, 0.1)), rgba(255, 255, 255, 0.94));
    border: 1px solid var(--package-accent-border, rgba(99, 151, 245, 0.14));
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.9),
        0 10px 22px var(--package-accent-shadow, rgba(99, 151, 245, 0.1));
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.intro-card .card-icon svg {
    width: 40px;
    height: 40px;
    display: block;
}

.intro-card:hover .card-icon {
    background: linear-gradient(180deg, var(--package-accent-soft, rgba(99, 151, 245, 0.14)), rgba(255, 255, 255, 0.96));
    border-color: var(--package-accent-border, rgba(99, 151, 245, 0.22));
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.94),
        0 16px 28px var(--package-accent-shadow, rgba(99, 151, 245, 0.18));
    transform: translateY(-2px);
}

.intro-card .card-head {
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    gap: 18px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.14);
}

.intro-card .card-head-copy {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
}

.intro-card .card-head-copy h3 {
    font-size: 1.52rem;
    line-height: 1.18;
    letter-spacing: 0.01em;
    white-space: nowrap;
    color: #0f172a;
}

.intro-card-lead {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.45;
    color: #4338ca;
    font-weight: 600;
    opacity: 0.88;
    max-width: 720px;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.intro-card-body {
    display: grid;
    gap: 0;
}

/* 展示区 */
.stack-panel {
    background: #ffffff;
    backdrop-filter: blur(16px);
    border-radius: 32px;
    border: 1px solid rgba(99, 151, 245, 0.1);
    padding: 48px;
    margin: 40px 0;
    box-shadow: 0 10px 10px rgba(0, 0, 0, 0.02);

}

.demo-live.stack-panel {
    background: transparent;
    backdrop-filter: none;
    border: none;
    border-radius: 0;
    padding: 0;
    margin: 56px 0 56px;
    box-shadow: none;
}

.demo-live {
    margin-top: 40px;
    margin-bottom: 60px;
}

.pc-showcase-carousel {
    position: relative;
    padding: 0 0 14px;
    overflow: visible;
}

.pc-showcase-shell {
    position: relative;
    display: block;
}

.pc-showcase-stage {
    position: relative;
    aspect-ratio: 1176 / 676;
    overflow: visible;
}

.pc-showcase-slide {
    position: absolute;
    inset: 0;
    margin: 0;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.pc-showcase-slide.is-active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.pc-showcase-label-wrap {
    position: absolute;
    left: 18px;
    bottom: 18px;
    top: auto;
    z-index: 3;
}

.pc-showcase-label {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 0 14px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.88);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: #ffffff;
    font-size: 13px;
    line-height: 1;
    font-weight: 700;
    letter-spacing: 0.01em;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 16px 36px rgba(2, 6, 23, 0.18);
}

.pc-showcase-image {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center center;
    border-radius: 0;
    border: none;
    outline: 10px solid #e9eef5;
    outline-offset: 0;
    box-shadow:
        0 4px 12px rgba(15, 23, 42, 0.06),
        0 1px 3px rgba(15, 23, 42, 0.04);
    background: transparent;
    cursor: zoom-in;
}

.pc-showcase-nav {
    position: absolute;
    top: 50%;
    z-index: 4;
    width: 50px;
    height: 50px;
    border: 1px solid rgba(148, 163, 184, 0.24);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.94);
    color: #334155;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 16px 36px rgba(15, 23, 42, 0.12);
    transition: background 0.2s ease, box-shadow 0.2s ease, color 0.2s ease;
}

.pc-showcase-nav:hover {
    background: #0f172a;
    color: #ffffff;
    box-shadow: 0 20px 44px rgba(15, 23, 42, 0.18);
}

.pc-showcase-carousel:focus-visible {
    outline: 2px solid rgba(99, 102, 241, 0.55);
    outline-offset: 4px;
}

.pc-showcase-nav-prev {
    left: 0;
    transform: translate(calc(-100% - 22px), -50%);
}

.pc-showcase-nav-next {
    right: 0;
    transform: translate(calc(100% + 22px), -50%);
}

.pc-showcase-dots {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 8px;
}

.pc-showcase-dot {
    width: 10px;margin-top: 28px;
    height: 10px;
    border-radius: 999px;
    border: none;
    background: rgba(148, 163, 184, 0.5);
    cursor: pointer;
    transition: transform 0.2s ease, background 0.2s ease, width 0.2s ease;
}

.pc-showcase-dot.is-active {
    width: 28px;
    background: linear-gradient(135deg, #f4b445 0%, #ff7a59 100%);
}

.pc-image-modal {
    position: fixed;
    inset: 0;
    z-index: 1400;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.24s ease, visibility 0.24s ease;
}

.pc-image-modal.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.pc-image-modal-backdrop,
.showcase-modal-backdrop,
.auth-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(2, 6, 23, 0.56);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.pc-image-modal-dialog {
    position: relative;
    width: 100vw;
    height: 100vh;
    padding: 28px;
}

.pc-image-modal-stage {
    width: 100%;
    height: 100%;
    overflow: visible;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: default;
    touch-action: none;
}

.pc-image-modal-media {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    max-width: min(92vw, 1440px);
    max-height: 88vh;
    transform-origin: center center;
    will-change: transform;
    --pc-image-control-scale: 1;
}

.pc-image-modal-image {
    display: block;
    max-width: min(92vw, 1440px);
    max-height: 88vh;
    width: auto;
    height: auto;
    user-select: none;
    box-shadow: 0 32px 80px rgba(0, 0, 0, 0.36);
}

.pc-image-modal-nav {
    position: absolute;
    top: 50%;
    z-index: 2;
    width: 48px;
    height: 48px;
    border: 1px solid rgba(148, 163, 184, 0.26);
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.92);
    color: #ffffff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
    transition: background 0.2s ease, box-shadow 0.2s ease, color 0.2s ease;
    transform-origin: center center;
}

.pc-image-modal-nav:hover {
    background: rgba(2, 6, 23, 0.98);
    color: #ffffff;
    box-shadow: 0 20px 44px rgba(0, 0, 0, 0.34);
}

.pc-image-modal-nav-prev {
    left: 0;
    transform: translate(calc(-100% - 24px), -50%) scale(var(--pc-image-control-scale));
}

.pc-image-modal-nav-next {
    right: 0;
    transform: translate(calc(100% + 24px), -50%) scale(var(--pc-image-control-scale));
}

.page-float-tools {
    position: fixed;
    right: 18px;
    bottom: 28px;
    z-index: 96;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.page-float-chip {
    width: 62px;
    height: 62px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 999px;
}

.page-float-chip-stat,
.page-float-chip-top {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.page-float-chip-stat {
    background: var(--accent-gradient);
    gap: 3px;
}

.page-float-chip-stat strong {
    font-size: 11px;
    line-height: 1.05;
    font-weight: 800;
    color: #ffffff;
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.08);
    transform: translateY(2px);
}

.page-float-label {
    font-size: 11px;
    line-height: 1;
    font-weight: 700;
    color: #ffffff;
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.08);
}

.page-float-chip-top {
    gap: 0;
    background: var(--accent-gradient);
    color: #ffffff;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(10px);
    transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease, opacity 0.22s ease, visibility 0.22s ease;
}

.page-float-chip-top svg {
    width: 34px;
    height: 34px;
    shape-rendering: geometricPrecision;
}

.page-float-chip-top.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

.page-float-chip-top:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.28);
}

#commentMount {
    margin-top: 24px;
}

.showcase-modal {
    position: fixed;
    inset: 0;
    z-index: 405;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 18px;
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.showcase-modal.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.showcase-modal-dialog {
    position: relative;
    width: min(860px, 100%);
    margin: auto 0;
    padding: 22px 22px 18px;
    border-radius: 28px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 250, 252, 0.96));
    border: 1px solid rgba(var(--accent-rgb), 0.16);
    box-shadow:
        0 28px 80px rgba(15, 23, 42, 0.18),
        0 8px 24px rgba(var(--accent-rgb), 0.08);
    z-index: 1;
}

.showcase-modal-close {
    position: absolute;
    top: -13px;
    right: -13px;
    width: 40px;
    height: 40px;
    border: 1px solid rgba(var(--accent-rgb), 0.16);
    border-radius: 999px;
    background: #ffffff;
    color: #64748b;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.28s ease, color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    transform: rotate(0deg);
}

.showcase-modal-close:hover,
.showcase-modal-close:focus-visible,
.showcase-modal-close:active {
    transform: rotate(180deg) scale(1.05);
    color: #ffffff;
    background: #ef4444;
    border-color: #ef4444;
    box-shadow: 0 10px 24px rgba(239, 68, 68, 0.22);
}

.showcase-modal-head {
    margin-bottom: 14px;
    padding-right: 40px;
}

.showcase-modal-title {
    font-size: 1.8rem;
    line-height: 1.18;
    color: #0f172a;
}

.showcase-modal-sub {
    margin-top: 8px;
    color: #64748b;
    font-size: 13px;
    line-height: 1.7;
}

.showcase-video-wrap {
    border-radius: 22px;
    overflow: hidden;
    background: #0f172a;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.showcase-video-player {
    display: block;
    width: 100%;
    height: auto;
    max-height: 62vh;
    background: #000000;
}

.auth-modal {
    position: fixed;
    inset: 0;
    z-index: 400;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 18px 18px;
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.auth-modal.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.auth-modal-dialog {
    position: relative;
    width: min(1080px, 100%);
    max-height: none;
    overflow: visible;
    margin: auto 0;
    padding: 24px 24px 20px;
    border-radius: 32px;
    background: #ffffff;
    border: 1px solid rgba(226, 232, 240, 0.96);
    box-shadow:
        0 28px 80px rgba(15, 23, 42, 0.22),
        0 8px 24px rgba(var(--accent-rgb), 0.08);
    z-index: 1;
}

.auth-modal-close {
    position: absolute;
    top: -14px;
    right: -14px;
    width: 42px;
    height: 42px;
    border: 1px solid rgba(var(--accent-rgb), 0.16);
    border-radius: 999px;
    background: #ffffff;
    color: #64748b;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.28s ease, color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    transform: rotate(0deg);
}

.auth-modal-close:hover,
.auth-modal-close:focus-visible,
.auth-modal-close:active {
    transform: rotate(180deg) scale(1.05);
    color: #ffffff;
    background: #ef4444;
    border-color: #ef4444;
    box-shadow: 0 10px 24px rgba(239, 68, 68, 0.22);
}

.auth-modal-head {
    margin-bottom: 18px;
    padding-right: 40px;
}

.auth-modal-title {
    font-size: 2rem;
    line-height: 1.16;
    color: #0f172a;
}

.auth-modal-sub {
    margin-top: 8px;
    max-width: 760px;
    color: #64748b;
    font-size: 13px;
    line-height: 1.7;
}

.auth-package-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.auth-package-card {
    position: relative;
    display: flex;
    flex-direction: column;
    min-height: 100%;
    padding: 18px 16px 16px;
    border-radius: 22px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 250, 252, 0.96));
    border: 1px solid rgba(148, 163, 184, 0.18);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.9),
        0 12px 32px rgba(15, 23, 42, 0.06);
}

.auth-package-card.is-recommended {
    border-color: rgba(var(--accent-rgb), 0.34);
    box-shadow:
        0 18px 46px rgba(var(--accent-rgb), 0.14),
        inset 0 1px 0 rgba(255, 255, 255, 0.94);
}

.auth-package-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 8px;
}

.auth-package-name {
    font-size: 1.16rem;
    font-weight: 800;
    line-height: 1.2;
    color: #0f172a;
}

.auth-package-badge {
    display: inline-flex;
    align-items: center;
    height: 30px;
    padding: 0 12px;
    border-radius: 999px;
    background: var(--accent-gradient);
    color: #ffffff;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
}

.auth-package-price {
    margin-top: 14px;
    font-size: 1.8rem;
    line-height: 1;
    font-weight: 800;
    color: var(--accent-secondary);
}

.auth-package-benefits {
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
}

.auth-package-benefits-title {
    font-size: 13px;
    font-weight: 700;
    color: #1e293b;
    opacity: 0.82;
}

.auth-package-benefit-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 8px;
}

.auth-package-benefit {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    padding: 3px 8px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(var(--accent-rgb), 0.14);
    color: #334155;
    font-size: 12px;
    line-height: 1.3;
}

.auth-package-benefit-meta {
    background: rgba(var(--accent-rgb), 0.08);
    border-color: rgba(var(--accent-rgb), 0.18);
    color: #475569;
}

footer {
    background: #0f172a;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 34px 0;
    margin-top: 60px;
    color: rgba(255, 255, 255, 0.72);
    position: relative;
    z-index: 10;
    overflow: hidden;
}

footer::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(99, 151, 245, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 151, 245, 0.08) 1px, transparent 1px);
    background-size: 44px 44px;
    opacity: 0.38;
    pointer-events: none;
}

footer::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 18% 50%, rgba(99, 151, 245, 0.18), transparent 34%),
        radial-gradient(circle at 82% 50%, rgba(76, 175, 80, 0.14), transparent 30%);
    pointer-events: none;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    position: relative;
    z-index: 1;
}

.footer-inner span,
.footer-inner a,
.footer-slogan {
    font-size: 0.92rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.72);
    letter-spacing: 0.01em;
}

.footer-divider {
    position: relative;
    width: 196px;
    height: 18px;
    flex-shrink: 0;
    pointer-events: none;
    opacity: 0.92;
}

.footer-divider::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: 1px;
    transform: translateY(-50%);
    background: linear-gradient(90deg, rgba(99, 151, 245, 0), rgba(76, 175, 80, 0.34), rgba(99, 151, 245, 0));
}

.footer-divider::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: 12px;
    height: 12px;
    transform: translate(-50%, -50%);
    border-radius: 999px;
    background: radial-gradient(circle, rgba(226, 244, 228, 0.96) 0%, rgba(76, 175, 80, 0.72) 48%, rgba(99, 151, 245, 0.08) 100%);
    box-shadow:
        0 0 14px rgba(76, 175, 80, 0.38),
        0 0 32px rgba(99, 151, 245, 0.2);
    animation: footerDividerPulse 3.2s ease-in-out infinite;
}

.footer-divider i {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 42px;
    height: 2px;
    border-radius: 999px;
    background: linear-gradient(90deg, rgba(99, 151, 245, 0), rgba(255, 255, 255, 0.95), rgba(76, 175, 80, 0.72), rgba(99, 151, 245, 0));
    transform: translate(-50%, -50%);
    box-shadow: 0 0 10px rgba(76, 175, 80, 0.28);
    animation: footerDividerSweep 3.2s ease-in-out infinite;
    pointer-events: none;
}

@keyframes footerDividerPulse {

    0%,
    100% {
        opacity: 0.72;
        transform: translate(-50%, -50%) scale(0.92);
        box-shadow:
            0 0 10px rgba(76, 175, 80, 0.24),
            0 0 22px rgba(99, 151, 245, 0.14);
    }

    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.08);
        box-shadow:
            0 0 18px rgba(76, 175, 80, 0.42),
            0 0 36px rgba(99, 151, 245, 0.24);
    }
}

@keyframes footerDividerSweep {

    0%,
    100% {
        opacity: 0.2;
        transform: translate(-62%, -50%);
    }

    50% {
        opacity: 0.95;
        transform: translate(-38%, -50%);
    }
}

footer a {
    text-decoration: none;
    transition: color 0.25s ease;
}

footer a:hover {
    color: #c7d2fe;
}

.qkpl-toast-wrap {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 60000;
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
    pointer-events: none;
}

.qkpl-toast {
    background: rgba(15, 23, 42, 0.88);
    border-radius: 12px;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.28);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    pointer-events: none;
}

.qkpl-toast.qkpl-toast-success {
    background: rgba(16, 185, 129, 0.88);
}

.qkpl-toast.qkpl-toast-error,
.qkpl-toast.qkpl-toast-warning {
    background: rgba(239, 68, 68, 0.88);
}

.qkpl-toast.qkpl-toast-info {
    background: rgba(59, 130, 246, 0.88);
}

.qkpl-toast-ico {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    flex-shrink: 0;
}

.qkpl-toast-ico svg {
    width: 20px;
    height: 20px;
}

.qkpl-toast-msg {
    color: #ffffff;
    font-size: 13px;
    line-height: 1.4;
    white-space: nowrap;
}

@media (max-width: 768px) {
    .pc-showcase-carousel {
        padding: 0 0 16px;
    }

    .pc-showcase-shell {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 12px;
    }

    .pc-showcase-stage {
        grid-column: 1 / -1;
        grid-row: 1;
    }

    .pc-showcase-image {
        border-radius: 0;
    }

    .pc-showcase-label-wrap {
        left: 12px;
        bottom: 12px;
        top: auto;
    }

    .pc-showcase-label {
        min-height: 30px;
        padding: 0 11px;
        font-size: 12px;
    }

    .pc-showcase-caption {
        left: 12px;
        right: 12px;
        bottom: 12px;
        padding: 12px 14px;
        border-radius: 16px;
    }

    .pc-showcase-caption-title {
        font-size: 0.95rem;
    }

    .pc-showcase-caption-desc {
        margin-top: 4px;
        font-size: 12px;
        line-height: 1.62;
    }

    .pc-showcase-nav {
        width: 40px;
        height: 40px;
    }

    .pc-showcase-nav-prev {
        grid-column: 1;
        grid-row: 2;
        justify-self: start;
        left: auto;
        transform: none;
    }

    .pc-showcase-nav-next {
        grid-column: 2;
        grid-row: 2;
        justify-self: end;
        right: auto;
        transform: none;
    }

    .pc-showcase-dots {
        gap: 8px;
        margin-top: 6px;
    }

    .pc-showcase-dot.is-active {
        width: 22px;
    }

    .pc-image-modal-dialog {
        padding: 18px 12px 12px;
    }

    .pc-image-modal-media {
        max-width: calc(100vw - 24px);
        max-height: calc(100vh - 32px);
    }

    .pc-image-modal-nav {
        width: 38px;
        height: 38px;
    }

    .pc-image-modal-nav-prev {
        transform: translate(calc(-100% - 8px), -50%) scale(var(--pc-image-control-scale));
    }

    .pc-image-modal-nav-next {
        transform: translate(calc(100% + 8px), -50%) scale(var(--pc-image-control-scale));
    }

    .pc-image-modal-image {
        max-width: calc(100vw - 24px);
        max-height: calc(100vh - 32px);
    }

    .container {
        padding-left: 16px;
        padding-right: 16px;
    }

    .navbar {
        padding: 16px 0;
    }

    .nav-flex {
        gap: 12px;
        flex-direction: row;
        justify-content: space-between;
        flex-wrap: nowrap;
        position: relative;
    }

    .logo {
        justify-content: flex-start;
        flex: 0 0 auto;
    }

    .logo-text,
    .logo-sub {
        font-size: 18px;
    }

    .nav-links {
        position: absolute;
        top: calc(100% + 10px);
        right: 0;
        left: auto;
        width: 120px;
        z-index: 115;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 6px;
        padding: 10px 8px;
        border-radius: 16px;
        background: rgba(255, 255, 255, 0.96);
        box-shadow: 0 14px 30px rgba(15, 23, 42, 0.1);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transform: translateY(-10px) scale(0.98);
        transform-origin: top right;
        transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
    }

    .nav-link {
        font-size: 15px;
        display: block;
        width: 100%;
        padding: 8px 0;
        text-align: center;
        color: #334155;
    }

    .nav-link-button {
        display: block;
    }

    .nav-link:hover {
        background: transparent;
        color: #6397F5;
    }

    .nav-actions {
        flex: 0 0 auto;
        margin-left: auto;
    }

    .nav-btn-chat {
        padding: 0 12px !important;
        min-width: 34px;
        height: 34px;
        font-size: 0.76rem;
        gap: 5px;
        justify-content: center;
    }

    .nav-btn-chat svg {
        width: 15px;
        height: 15px;
    }

    .nav-menu-toggle {
        display: inline-flex;
        width: 34px;
        height: 34px;
        border-radius: 11px;
    }

    .nav-menu-toggle svg {
        width: 16px;
        height: 16px;
    }

    body.nav-menu-open .nav-links {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: translateY(0) scale(1);
    }

    .hero {
        height: auto;
        min-height: 0;
        padding: 46px 0 64px;
        align-items: flex-start;
    }

    .hero::after {
        top: -8%;
        right: -24%;
        width: 280px;
        height: 280px;
        opacity: 0.34;
    }

    .tech-lines {
        opacity: 0.5;
    }

    .hero-panel {
        padding: 8px 6px 0;
    }

    .hero-panel .hero-orb-1 {
        top: -10px;
        right: -18px;
        width: 118px;
        height: 118px;
        opacity: 0.16;
    }

    .hero-panel .hero-orb-2 {
        left: -10px;
        bottom: -18px;
        width: 138px;
        height: 138px;
        opacity: 0.14;
    }

    .hero-title {
        max-width: 100%;
        margin-top: 0px;
        font-size: 28px;
        line-height: 1.14;
        letter-spacing: -0.035em;
        animation: none;
        transform: none;
    }

    .hero-sub {
        max-width: 90%;
        margin-top: 18px;
        margin-bottom: 34px;
        padding: 0 4px;
        font-size: 0.98rem;
        line-height: 1.75;
    }

    .hero-download-grid {
        grid-template-columns: 300px;
        justify-content: center;
        gap: 12px;
        max-width: 300px;
        margin: 26px auto 36px;
    }

  
    .hero-download-icon svg {
        width: 26px;
        height: 26px;
    }

    .hero-download-title {
        margin-top: 14px;
        font-size: 1.04rem;
    }

    .hero-download-desc {
        margin-top: 8px;
        min-height: 0;
        font-size: 12px;
        line-height: 1.65;
        max-width: 230px;
    }

    .hero-download-btn {
        margin-top: 14px;
        min-height: 40px;
        font-size: 13px;
        min-width: 118px;
        padding: 8px 16px;
    }

    .hero-download-card {
        min-height: 320px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .features-grid.features-grid-single {
        grid-template-columns: 1fr;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .advantage-card {
        padding: 26px 22px 24px;
    }

    .advantage-icon {
        width: 50px;
        height: 50px;
    }

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

    .advantage-title {
        font-size: 1.05rem;
    }

    .advantage-desc {
        font-size: 0.88rem;
    }

    .hero-stats {
        transform: none;
        margin: 0 auto;
        gap: 14px;
        max-width: 520px;
    }

    .page-float-tools {
        right: 10px;
        bottom: 16px;
        gap: 10px;
    }

    .page-float-chip {
        border-radius: 999px;
    }

    .page-float-chip-stat strong {
        font-size: 10px;
    }

    .page-float-label {
        font-size: 10px;
    }

    .page-float-chip-top svg {
        width: 22px;
        height: 22px;
    }

    .stack-panel {
        padding: 28px;
    }

    .demo-live.stack-panel {
        padding: 0;
        margin: 36px 0 44px;
    }

    .auth-modal {
        padding: 12px;
    }

    .showcase-modal {
        padding: 12px;
    }

    .showcase-modal-dialog {
        padding: 18px 14px 14px;
        border-radius: 22px;
    }

    .showcase-modal-close {
        top: -19px;
        right: -19px;
        width: 38px;
        height: 38px;
    }

    .showcase-modal-head {
        margin-bottom: 12px;
        padding-right: 30px;
    }

    .showcase-modal-title {
        font-size: 1.4rem;
    }

    .showcase-modal-sub {
        font-size: 12px;
        line-height: 1.65;
    }

    .showcase-video-wrap {
        border-radius: 18px;
    }

    .showcase-video-player {
        max-height: 46vh;
    }

    .auth-modal-dialog {
        max-height: none;
        padding: 18px 14px 16px;
        border-radius: 24px;
    }

    .auth-modal-close {
        top: -19px;
        right: -19px;
        width: 38px;
        height: 38px;
    }

    .auth-modal-head {
        padding-right: 28px;
        margin-bottom: 20px;
    }

    .auth-modal-title {
        font-size: 1.6rem;
    }

    .auth-modal-sub {
        font-size: 12px;
        line-height: 1.65;
    }

    .auth-package-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .auth-package-card {
        padding: 16px 14px 14px;
        border-radius: 18px;
    }

    .auth-package-price {
        font-size: 1.58rem;
    }

    .auth-package-benefit-list {
        gap: 6px;
    }

    .auth-package-benefit {
        font-size: 12px;
        min-height: 24px;
        padding: 2px 7px;
    }

    #intro .intro-card {
        padding: 30px 22px 26px;
    }

    #intro .intro-card .card-head {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 16px;
        margin-bottom: 22px;
        padding-bottom: 0;
    }

    #intro .intro-card .card-head-copy {
        align-items: center;
        text-align: center;
    }

    #intro .intro-card .card-head-copy h3 {
        font-size: 1.34rem;
        white-space: normal;
    }

    #intro .intro-card-lead {
        font-size: 0.96rem;
        line-height: 1.82;
        text-align: center;
    }

    #intro .intro-card-body {
        gap: 14px;
        margin-bottom: 22px;
    }

    #intro .intro-card-body p {
        font-size: 14.5px;
        line-height: 1.86;
        text-align: left;
    }

    .intro-card {
        padding: 30px 22px 26px;
    }

    .intro-card .card-head {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
        gap: 14px;
        margin-bottom: 22px;
        padding-bottom: 18px;
    }

    .intro-card .card-head-copy {
        align-items: flex-start;
    }

    .intro-card .card-head-copy h3 {
        font-size: 1.34rem;
        white-space: normal;
    }

    .intro-card-body {
        margin-bottom: 0;
    }

    .section {
        padding: 0px 0;
    }

    .section-head {
        margin-top: 0;
        margin-bottom: 34px;
    }

    .section-title {
        font-size: 1.7rem;
        line-height: 1.28;
    }

    .section-title-mobile-hide {
        display: none;
    }

    .section-title-mobile-only {
        display: inline;
    }

    .section-sub {
        margin-top: 12px;
        font-size: 14px;
        line-height: 1.8;
        width: 80%;
    }

    .stat-item {
        min-width: calc(50% - 10px);
        flex: 1 1 calc(50% - 10px);
        padding: 0 8px;
    }

    .stat-number {
        font-size: 1.9rem;
    }

    .stat-label {
        font-size: 0.76rem;
        line-height: 1.5;
    }

    #demo .section-title {
        font-size: 1.46rem !important;
        line-height: 1.35;
    }

    .footer-inner {
        justify-content: center;
        text-align: center;
        gap: 12px;
    }

    .footer-divider {
        display: none;
    }
}