:root {
    --bg: #4e55f8;
    --bg-soft: #6350f0;
    --text: #ffffff;
    --muted: #e7dcff;
    --primary: #4663ff;
    --secondary: #cb59e9;
    --card: rgba(255, 255, 255, 0.055);
    --line: rgba(255, 255, 255, 0.14);
    --radius-card: 18px;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 96px;
}

body {
    font-family: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 12% 14%, rgba(74, 109, 255, 0.25), transparent 34%),
        radial-gradient(circle at 86% 16%, rgba(224, 104, 255, 0.25), transparent 36%),
        linear-gradient(115deg, #3766f4 0%, #6a52f4 46%, #c35ce9 100%);
    line-height: 1.64;
}

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

.container {
    width: min(1120px, calc(100% - 40px));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    background: linear-gradient(90deg, rgba(62, 107, 244, 0.78) 0%, rgba(111, 85, 242, 0.72) 68%, rgba(127, 84, 239, 0.72) 100%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.22);
}

.header-inner {
    height: 82px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
}

.brand-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    box-shadow: 0 0 18px rgba(173, 98, 255, 0.55);
}

.brand-logo {
    width: 28px;
    height: 28px;
    object-fit: contain;
    display: block;
}

.menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 30px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 17px;
    font-weight: 600;
    letter-spacing: 0.01em;
}

.menu-list a:hover {
    color: #ffffff;
}

.menu-list a.is-active {
    color: #ffffff;
    text-shadow: 0 0 12px rgba(255, 255, 255, 0.35);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    font-weight: 600;
    transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
}

.btn-sm {
    height: 38px;
    padding: 0 16px;
    font-size: 14px;
}

.btn-lg {
    height: 52px;
    padding: 0 28px;
    font-size: 15px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    box-shadow: 0 14px 34px rgba(155, 98, 255, 0.36);
}

.btn-outline {
    border: 1px solid var(--line);
    color: #ffffff;
    background: rgba(255, 255, 255, 0.02);
}

.btn-light {
    background: #fff;
    color: #0e1f4d;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn-primary:hover {
    box-shadow: 0 18px 42px rgba(188, 92, 247, 0.45);
}

.hero {
    position: relative;
    padding: 94px 0 150px;
    overflow: hidden;
}

.hero::before,
.hero::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.hero::before {
    width: 42px;
    height: 42px;
    right: 15%;
    top: 40%;
    background: radial-gradient(circle, rgba(114, 162, 255, 0.95), rgba(114, 162, 255, 0.2));
}

.hero::after {
    width: 760px;
    height: 220px;
    left: 54%;
    bottom: -120px;
    transform: translateX(-20%);
    background: #eef0f5;
    border-radius: 50%;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 38px;
    align-items: center;
}

.eyebrow {
    color: rgba(255, 255, 255, 0.82);
    margin: 0 0 12px;
    font-weight: 600;
    letter-spacing: 0.04em;
    font-size: 13px;
    text-transform: uppercase;
}

.hero h1 {
    margin: 0;
    font-size: clamp(38px, 5vw, 60px);
    line-height: 1.08;
    letter-spacing: -0.02em;
}

.hero-desc {
    color: rgba(255, 255, 255, 0.9);
    max-width: 700px;
    margin: 20px 0 32px;
    font-size: 18px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.hero-stats {
    margin: 38px 0 0;
    list-style: none;
    padding: 0;
    display: flex;
    gap: 34px;
    flex-wrap: wrap;
}

.hero-stats li {
    min-width: 132px;
    width: 132px;
    height: 132px;
    border: 2px solid rgba(255, 255, 255, 0.75);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.hero-stats strong {
    display: block;
    font-size: 44px;
    color: #fff;
    line-height: 1;
}

.hero-stats span {
    color: rgba(255, 255, 255, 0.9);
    font-size: 16px;
    line-height: 1.1;
    letter-spacing: 0.02em;
    text-align: center;
}

.hero-card {
    background: rgba(255, 255, 255, 0.13);
    border: 1px solid rgba(255, 255, 255, 0.26);
}

.hero-card {
    position: relative;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 34px;
    overflow: hidden;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 20px 42px rgba(7, 16, 41, 0.42);
    will-change: transform;
    transition: transform 0.24s ease;
}

.card-glow {
    position: absolute;
    inset: -46% 22% auto -18%;
    height: 240px;
    background: radial-gradient(circle, rgba(173, 98, 255, 0.44), transparent 72%);
}

.hero-card h2 {
    margin: 0;
    font-size: 28px;
    letter-spacing: -0.01em;
}

.hero-card p {
    color: var(--muted);
    margin: 10px 0 0;
}

.mini-metrics {
    display: grid;
    gap: 15px;
    margin-top: 26px;
}

.mini-metrics div {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px dashed rgba(255, 255, 255, 0.22);
    padding-top: 12px;
}

.mini-metrics span {
    color: rgba(255, 255, 255, 0.82);
}

.hero .btn-primary,
.hero .btn-outline {
    background: #f4f5fb;
    color: #4655c7;
    border: none;
    box-shadow: 0 6px 16px rgba(37, 30, 121, 0.22);
}

.hero .btn-primary:hover,
.hero .btn-outline:hover {
    box-shadow: 0 10px 22px rgba(37, 30, 121, 0.3);
}

.section {
    padding: 86px 0;
    background: #060b1b;
}

.section-alt {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01));
}

.section-title {
    margin: 0 0 11px;
    font-size: clamp(30px, 4vw, 44px);
    line-height: 1.16;
    letter-spacing: -0.01em;
}

.section-subtitle {
    margin: 0;
    color: var(--muted);
    font-size: 17px;
}

.feature-grid {
    margin-top: 34px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

#features.section {
    background: #ffffff;
}

#features .section-title {
    background: linear-gradient(120deg, #496bff 0%, #7d5cf2 52%, #c45be8 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

#features .section-subtitle {
    color: #5d6788;
}

.feature-item {
    background: #f6f8ff;
    border: 1px solid #e6ebff;
    border-radius: var(--radius-card);
    padding: 22px;
    transition: transform 0.24s ease, border-color 0.24s ease;
}

.feature-item:hover {
    transform: translateY(-3px);
    border-color: rgba(255, 255, 255, 0.26);
}

.feature-item h3 {
    margin: 0 0 10px;
    font-size: 21px;
    color: #1a2448;
}

.feature-item p {
    margin: 0;
    color: #5d6788;
}

.intro-section {
    background: #ffffff;
    padding-top: 24px;
    padding-bottom: 28px;
}

.intro-stack {
    display: grid;
    gap: 44px;
}

.intro-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 56px;
}

.intro-row-reverse .intro-media {
    order: 2;
}

.intro-row-reverse .intro-content {
    order: 1;
}

.intro-media img {
    width: 100%;
    max-width: 420px;
    height: auto;
    display: block;
}

.intro-content h3 {
    margin: 0 0 12px;
    font-size: clamp(28px, 3vw, 40px);
    line-height: 1.18;
    background: linear-gradient(120deg, #496bff 0%, #7d5cf2 52%, #c45be8 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.intro-content p {
    margin: 0;
    font-size: 17px;
    color: #5d6788;
    line-height: 1.75;
    max-width: 560px;
}

.btn-intro {
    margin-top: 24px;
    height: 44px;
    padding: 0 24px;
    border-radius: 999px;
    background: linear-gradient(135deg, #ffb03a, #ff8515);
    color: #ffffff;
    box-shadow: 0 10px 22px rgba(255, 145, 36, 0.24);
}

.assurance-section,
.reviews-section,
.faq-section {
    background: #ffffff;
}

.assurance-grid {
    margin-top: 30px;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.assurance-item {
    background: linear-gradient(180deg, #f9fbff, #f4f7ff);
    border: 1px solid #e6edff;
    border-radius: 16px;
    padding: 22px;
}

.assurance-item h3 {
    margin: 0 0 10px;
    font-size: 20px;
    color: #132047;
}

.assurance-item p {
    margin: 0;
    color: #5d6788;
}

#assurance .section-subtitle,
#faq .section-subtitle {
    background: linear-gradient(120deg, #496bff 0%, #7d5cf2 52%, #c45be8 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-weight: 600;
}

.reviews-section {
    padding-top: 34px;
}

#reviews .section-title,
#compare .section-title {
    color: #172347;
}

#reviews .section-subtitle,
#compare .section-subtitle {
    color: #536087;
    font-weight: 500;
}

.review-grid {
    margin-top: 30px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.review-card {
    background: #ffffff;
    border: 1px solid #e8edff;
    border-radius: 18px;
    padding: 22px;
    box-shadow: 0 12px 28px rgba(76, 96, 186, 0.08);
}

.review-card p {
    margin: 0 0 14px;
    color: #354167;
    line-height: 1.75;
}

.review-card span {
    color: #647298;
    font-size: 14px;
    font-weight: 600;
}

.faq-section {
    padding-top: 12px;
}

.compare-section {
    background: #ffffff;
    padding-top: 24px;
}

.compare-wrap {
    margin-top: 26px;
    overflow-x: auto;
}

.compare-table {
    width: 100%;
    min-width: 680px;
    border-collapse: separate;
    border-spacing: 0;
    border: 1px solid #e6ebff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 12px 24px rgba(78, 96, 182, 0.06);
}

.compare-table thead th {
    background: linear-gradient(120deg, #eef1ff, #f6edff);
    color: #1b2750;
    font-size: 15px;
    font-weight: 700;
    text-align: left;
    padding: 14px 16px;
    border-bottom: 1px solid #e3e8ff;
}

.compare-table tbody td {
    padding: 14px 16px;
    border-bottom: 1px solid #edf1ff;
    color: #2f3b61;
    background: #ffffff;
}

.compare-table tbody tr:last-child td {
    border-bottom: none;
}

.compare-yes,
.compare-no {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: 4px 10px;
    font-size: 13px;
    font-weight: 700;
}

.compare-yes {
    color: #145c34;
    background: #e8fff1;
}

.compare-no {
    color: #7a2f34;
    background: #ffeef0;
}

.faq-list {
    margin-top: 26px;
    display: grid;
    gap: 12px;
}

.faq-item {
    border: 1px solid #e6ecff;
    border-radius: 14px;
    background: #f9fbff;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    border: none;
    background: transparent;
    text-align: left;
    padding: 18px 20px;
    font-size: 17px;
    font-weight: 700;
    color: #1b274e;
    cursor: pointer;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.28s ease;
}

.faq-answer p {
    margin: 0;
    padding: 0 20px 18px;
    color: #5d6788;
}

.faq-item.is-open .faq-answer {
    max-height: 180px;
}

#plan.section-alt {
    background: linear-gradient(110deg, #4169f6 0%, #6b58f3 52%, #bd5de8 100%);
    position: relative;
    overflow: hidden;
}

#plan.section-alt::before,
#plan.section-alt::after {
    content: "";
    position: absolute;
    pointer-events: none;
    border-radius: 50%;
}

#plan.section-alt::before {
    width: 420px;
    height: 420px;
    right: -130px;
    top: -190px;
    background: radial-gradient(circle, rgba(116, 132, 255, 0.24) 0%, rgba(116, 132, 255, 0) 70%);
}

#plan.section-alt::after {
    width: 380px;
    height: 380px;
    left: -150px;
    bottom: -220px;
    background: radial-gradient(circle, rgba(210, 98, 240, 0.16) 0%, rgba(210, 98, 240, 0) 72%);
}

#plan .section-title {
    color: #ffffff;
}

#plan .section-subtitle {
    color: rgba(245, 239, 255, 0.9);
}

.plan-wrap {
    display: grid;
    grid-template-columns: 1fr 400px;
    align-items: center;
    gap: 32px;
    position: relative;
    z-index: 1;
}

.price-card {
    background:
        radial-gradient(circle at 12% 16%, rgba(255, 255, 255, 0.24), rgba(255, 255, 255, 0) 42%),
        linear-gradient(145deg, #6676ff 0%, #8a61f4 46%, #cf68e8 100%);
    border: 1px solid rgba(129, 102, 238, 0.38);
    border-radius: 22px;
    padding: 30px;
    box-shadow:
        0 20px 44px rgba(71, 56, 136, 0.28),
        inset 0 1px 0 rgba(255, 255, 255, 0.34);
    transition: transform 0.28s ease, box-shadow 0.28s ease;
}

.price-card:hover {
    transform: translateY(-4px);
    box-shadow:
        0 24px 54px rgba(71, 56, 136, 0.34),
        inset 0 1px 0 rgba(255, 255, 255, 0.36);
}

.price-label {
    color: #fff;
    font-size: 13px;
    margin: 0;
}

.price {
    margin: 14px 0 16px;
    font-size: 52px;
    font-weight: 700;
    line-height: 1;
}

.price span {
    font-size: 22px;
    opacity: 0.86;
}

.price-unit {
    margin-left: 4px;
}

.price-card ul {
    margin: 0 0 20px;
    padding: 0 0 0 18px;
}

.price-card li {
    margin-bottom: 9px;
}

#download.section,
#support.section {
    background: #ffffff;
}

#download .section-title,
#support .cta-box h2 {
    color: #131a33;
}

#download .section-title {
    background: linear-gradient(120deg, #496bff 0%, #7d5cf2 52%, #c45be8 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

#download .section-subtitle,
#support .cta-box p {
    color: #5d6788;
}

#download .section-title,
#download .section-subtitle {
    text-align: center;
}

.apps-showcase {
    position: relative;
    margin: 38px auto 0;
    width: min(900px, 100%);
    height: 420px;
    overflow: visible;
    perspective: 1200px;
}

.orbit-ring {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    border: 1px solid rgba(208, 214, 236, 0.65);
    animation: orbit-spin 28s linear infinite;
}

.orbit-ring-1 {
    width: 220px;
    height: 220px;
}

.orbit-ring-2 {
    width: 330px;
    height: 330px;
    animation-duration: 36s;
    animation-direction: reverse;
}

.orbit-ring-3 {
    width: 430px;
    height: 430px;
    border-color: rgba(221, 225, 242, 0.6);
    animation-duration: 46s;
}

.app-center {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 90px;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    animation: center-pulse 3.2s ease-in-out infinite;
    will-change: transform;
    transition: transform 0.2s ease;
}

.app-center-logo {
    width: 90px;
    height: 90px;
    object-fit: contain;
    display: block;
    filter: drop-shadow(0 6px 12px rgba(32, 36, 88, 0.25));
}

.app-bubble {
    position: absolute;
    min-width: 86px;
    height: 48px;
    padding: 0 14px;
    border-radius: 999px;
    background: #ffffff;
    border: 1px solid #e9edfa;
    box-shadow: 0 10px 24px rgba(59, 81, 172, 0.12);
    color: #243055;
    font-weight: 600;
    font-size: 13px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    will-change: transform;
    left: 0;
    top: 0;
    transform: translate3d(0, 0, 0) translate(-50%, -50%);
}

.app-bubble-orbit-1 {
    border-color: rgba(116, 134, 255, 0.24);
}

.app-bubble-orbit-2 {
    border-color: rgba(167, 112, 255, 0.24);
}

.app-bubble-orbit-3 {
    border-color: rgba(98, 177, 255, 0.24);
}

.app-spark {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: radial-gradient(circle, #ffd58a 0%, #ff9d2f 72%, #ff8b1a 100%);
    box-shadow:
        0 0 0 4px rgba(255, 157, 47, 0.14),
        0 0 12px rgba(255, 157, 47, 0.58);
    pointer-events: none;
    will-change: transform, opacity;
}

.app-spark-trail {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 26px;
    height: 2px;
    border-radius: 999px;
    background: linear-gradient(90deg, rgba(255, 157, 47, 0), rgba(255, 157, 47, 0.28), rgba(255, 157, 47, 0.65));
    filter: blur(0.4px);
    transform-origin: 100% 50%;
    pointer-events: none;
    will-change: transform, opacity;
}

.apps-showcase::before,
.apps-showcase::after {
    content: "";
    position: absolute;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #4f8dff;
}

.apps-showcase::before {
    left: 17%;
    top: 49%;
}

.apps-showcase::after {
    right: 24%;
    bottom: 25%;
    background: #f17f2d;
}

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

@keyframes center-pulse {
    0%,
    100% {
        filter: drop-shadow(0 8px 14px rgba(93, 98, 230, 0.24));
    }
    50% {
        filter: drop-shadow(0 12px 22px rgba(145, 87, 236, 0.32));
    }
}

.reveal-init {
    opacity: 0;
    transform: translateY(24px);
}

.reveal-init.reveal-show {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

@media (prefers-reduced-motion: reduce) {
    .orbit-ring,
    .app-center {
        animation: none !important;
    }

    .reveal-init,
    .reveal-init.reveal-show {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

.cta-box {
    text-align: center;
    padding: 68px 26px;
    border-radius: 24px;
    background: linear-gradient(135deg, #f6f4ff, #fdeefe);
    border: 1px solid #ebddff;
}

.cta-box h2 {
    margin: 0;
    font-size: clamp(26px, 4vw, 40px);
}

.cta-box p {
    color: #5d6788;
    margin: 14px auto 26px;
    max-width: 760px;
}

.site-footer {
    padding: 62px 0 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 26px;
}

.site-footer h3,
.site-footer h4 {
    margin-top: 0;
}

.site-footer p,
.site-footer li a {
    color: var(--muted);
}

.site-footer ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-copy {
    margin-top: 26px;
    color: #7f8ca9;
    font-size: 14px;
}

@media (max-width: 980px) {
    .menu-list {
        display: none;
    }

    .hero-inner,
    .feature-grid,
    .intro-row,
    .assurance-grid,
    .review-grid,
    .plan-wrap,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        padding-top: 62px;
    }

    .section {
        padding: 64px 0;
    }

    .apps-showcase {
        height: 560px;
    }

    .compare-table {
        min-width: 560px;
    }

    .intro-row,
    .intro-row-reverse .intro-media,
    .intro-row-reverse .intro-content {
        order: initial;
    }

    .intro-stack {
        gap: 34px;
    }
}